1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
11 #include <linux/uio.h>
12 #include <linux/types.h>
13 #include <linux/page-flags.h>
14 #include <linux/buffer_head.h>
15 #include <linux/slab.h>
16 #include <linux/crc32.h>
17 #include <linux/magic.h>
18 #include <linux/kobject.h>
19 #include <linux/sched.h>
20 #include <linux/cred.h>
21 #include <linux/vmalloc.h>
22 #include <linux/bio.h>
23 #include <linux/blkdev.h>
24 #include <linux/quotaops.h>
25 #include <crypto/hash.h>
27 #include <linux/fscrypt.h>
29 #ifdef CONFIG_F2FS_CHECK_FS
30 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
32 #define f2fs_bug_on(sbi, condition) \
34 if (unlikely(condition)) { \
36 set_sbi_flag(sbi, SBI_NEED_FSCK); \
60 #ifdef CONFIG_F2FS_FAULT_INJECTION
61 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
63 struct f2fs_fault_info {
65 unsigned int inject_rate;
66 unsigned int inject_type;
69 extern const char *f2fs_fault_name[FAULT_MAX];
70 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
76 #define F2FS_MOUNT_BG_GC 0x00000001
77 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
78 #define F2FS_MOUNT_DISCARD 0x00000004
79 #define F2FS_MOUNT_NOHEAP 0x00000008
80 #define F2FS_MOUNT_XATTR_USER 0x00000010
81 #define F2FS_MOUNT_POSIX_ACL 0x00000020
82 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
83 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
84 #define F2FS_MOUNT_INLINE_DATA 0x00000100
85 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
86 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
87 #define F2FS_MOUNT_NOBARRIER 0x00000800
88 #define F2FS_MOUNT_FASTBOOT 0x00001000
89 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
90 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
91 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
92 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
93 #define F2FS_MOUNT_ADAPTIVE 0x00020000
94 #define F2FS_MOUNT_LFS 0x00040000
95 #define F2FS_MOUNT_USRQUOTA 0x00080000
96 #define F2FS_MOUNT_GRPQUOTA 0x00100000
97 #define F2FS_MOUNT_PRJQUOTA 0x00200000
98 #define F2FS_MOUNT_QUOTA 0x00400000
99 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
100 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
101 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
103 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
104 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
105 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
106 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
108 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
109 typecheck(unsigned long long, b) && \
110 ((long long)((a) - (b)) > 0))
112 typedef u32 block_t; /*
113 * should not change u32, since it is the on-disk block
114 * address format, __le32.
118 struct f2fs_mount_info {
120 int write_io_size_bits; /* Write IO size bits */
121 block_t root_reserved_blocks; /* root reserved blocks */
122 kuid_t s_resuid; /* reserved blocks for uid */
123 kgid_t s_resgid; /* reserved blocks for gid */
124 int active_logs; /* # of active logs */
125 int inline_xattr_size; /* inline xattr size */
126 #ifdef CONFIG_F2FS_FAULT_INJECTION
127 struct f2fs_fault_info fault_info; /* For fault injection */
130 /* Names of quota files with journalled quota */
131 char *s_qf_names[MAXQUOTAS];
132 int s_jquota_fmt; /* Format of quota to use */
134 /* For which write hints are passed down to block layer */
136 int alloc_mode; /* segment allocation policy */
137 int fsync_mode; /* fsync policy */
138 bool test_dummy_encryption; /* test dummy encryption */
139 block_t unusable_cap; /* Amount of space allowed to be
140 * unusable when disabling checkpoint
144 #define F2FS_FEATURE_ENCRYPT 0x0001
145 #define F2FS_FEATURE_BLKZONED 0x0002
146 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
147 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
148 #define F2FS_FEATURE_PRJQUOTA 0x0010
149 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
150 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
151 #define F2FS_FEATURE_QUOTA_INO 0x0080
152 #define F2FS_FEATURE_INODE_CRTIME 0x0100
153 #define F2FS_FEATURE_LOST_FOUND 0x0200
154 #define F2FS_FEATURE_VERITY 0x0400 /* reserved */
155 #define F2FS_FEATURE_SB_CHKSUM 0x0800
156 #define F2FS_FEATURE_CASEFOLD 0x1000
158 #define __F2FS_HAS_FEATURE(raw_super, mask) \
159 ((raw_super->feature & cpu_to_le32(mask)) != 0)
160 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
161 #define F2FS_SET_FEATURE(sbi, mask) \
162 (sbi->raw_super->feature |= cpu_to_le32(mask))
163 #define F2FS_CLEAR_FEATURE(sbi, mask) \
164 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
167 * Default values for user and/or group using reserved blocks
169 #define F2FS_DEF_RESUID 0
170 #define F2FS_DEF_RESGID 0
173 * For checkpoint manager
180 #define CP_UMOUNT 0x00000001
181 #define CP_FASTBOOT 0x00000002
182 #define CP_SYNC 0x00000004
183 #define CP_RECOVERY 0x00000008
184 #define CP_DISCARD 0x00000010
185 #define CP_TRIMMED 0x00000020
186 #define CP_PAUSE 0x00000040
188 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
189 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
190 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
191 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
192 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
193 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
194 #define DEF_CP_INTERVAL 60 /* 60 secs */
195 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
196 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
197 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
198 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
208 * indicate meta/data type
217 DATA_GENERIC, /* check range only */
218 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
219 DATA_GENERIC_ENHANCE_READ, /*
220 * strong check on range and segment
221 * bitmap but no warning due to race
222 * condition of read on truncated area
228 /* for the list of ino */
230 ORPHAN_INO, /* for orphan ino list */
231 APPEND_INO, /* for append ino list */
232 UPDATE_INO, /* for update ino list */
233 TRANS_DIR_INO, /* for trasactions dir ino list */
234 FLUSH_INO, /* for multiple device flushing */
235 MAX_INO_ENTRY, /* max. list */
239 struct list_head list; /* list head */
240 nid_t ino; /* inode number */
241 unsigned int dirty_device; /* dirty device bitmap */
244 /* for the list of inodes to be GCed */
246 struct list_head list; /* list head */
247 struct inode *inode; /* vfs inode pointer */
250 struct fsync_node_entry {
251 struct list_head list; /* list head */
252 struct page *page; /* warm node page pointer */
253 unsigned int seq_id; /* sequence id */
256 /* for the bitmap indicate blocks to be discarded */
257 struct discard_entry {
258 struct list_head list; /* list head */
259 block_t start_blkaddr; /* start blockaddr of current segment */
260 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
263 /* default discard granularity of inner discard thread, unit: block count */
264 #define DEFAULT_DISCARD_GRANULARITY 16
266 /* max discard pend list number */
267 #define MAX_PLIST_NUM 512
268 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
269 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
272 D_PREP, /* initial */
273 D_PARTIAL, /* partially submitted */
274 D_SUBMIT, /* all submitted */
275 D_DONE, /* finished */
278 struct discard_info {
279 block_t lstart; /* logical start address */
280 block_t len; /* length */
281 block_t start; /* actual start address in dev */
285 struct rb_node rb_node; /* rb node located in rb-tree */
288 block_t lstart; /* logical start address */
289 block_t len; /* length */
290 block_t start; /* actual start address in dev */
292 struct discard_info di; /* discard info */
295 struct list_head list; /* command list */
296 struct completion wait; /* compleation */
297 struct block_device *bdev; /* bdev */
298 unsigned short ref; /* reference count */
299 unsigned char state; /* state */
300 unsigned char queued; /* queued discard */
301 int error; /* bio error */
302 spinlock_t lock; /* for state/bio_ref updating */
303 unsigned short bio_ref; /* bio reference count */
314 struct discard_policy {
315 int type; /* type of discard */
316 unsigned int min_interval; /* used for candidates exist */
317 unsigned int mid_interval; /* used for device busy */
318 unsigned int max_interval; /* used for candidates not exist */
319 unsigned int max_requests; /* # of discards issued per round */
320 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
321 bool io_aware; /* issue discard in idle time */
322 bool sync; /* submit discard with REQ_SYNC flag */
323 bool ordered; /* issue discard by lba order */
324 unsigned int granularity; /* discard granularity */
325 int timeout; /* discard timeout for put_super */
328 struct discard_cmd_control {
329 struct task_struct *f2fs_issue_discard; /* discard thread */
330 struct list_head entry_list; /* 4KB discard entry list */
331 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
332 struct list_head wait_list; /* store on-flushing entries */
333 struct list_head fstrim_list; /* in-flight discard from fstrim */
334 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
335 unsigned int discard_wake; /* to wake up discard thread */
336 struct mutex cmd_lock;
337 unsigned int nr_discards; /* # of discards in the list */
338 unsigned int max_discards; /* max. discards to be issued */
339 unsigned int discard_granularity; /* discard granularity */
340 unsigned int undiscard_blks; /* # of undiscard blocks */
341 unsigned int next_pos; /* next discard position */
342 atomic_t issued_discard; /* # of issued discard */
343 atomic_t queued_discard; /* # of queued discard */
344 atomic_t discard_cmd_cnt; /* # of cached cmd count */
345 struct rb_root_cached root; /* root of discard rb-tree */
346 bool rbtree_check; /* config for consistence check */
349 /* for the list of fsync inodes, used only during recovery */
350 struct fsync_inode_entry {
351 struct list_head list; /* list head */
352 struct inode *inode; /* vfs inode pointer */
353 block_t blkaddr; /* block address locating the last fsync */
354 block_t last_dentry; /* block address locating the last dentry */
357 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
358 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
360 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
361 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
362 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
363 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
365 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
366 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
368 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
370 int before = nats_in_cursum(journal);
372 journal->n_nats = cpu_to_le16(before + i);
376 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
378 int before = sits_in_cursum(journal);
380 journal->n_sits = cpu_to_le16(before + i);
384 static inline bool __has_cursum_space(struct f2fs_journal *journal,
387 if (type == NAT_JOURNAL)
388 return size <= MAX_NAT_JENTRIES(journal);
389 return size <= MAX_SIT_JENTRIES(journal);
395 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
396 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
397 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
399 #define F2FS_IOCTL_MAGIC 0xf5
400 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
401 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
402 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
403 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
404 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
405 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
406 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
407 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
408 struct f2fs_defragment)
409 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
410 struct f2fs_move_range)
411 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
412 struct f2fs_flush_device)
413 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
414 struct f2fs_gc_range)
415 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
416 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
417 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
418 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
419 #define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
421 #define F2FS_IOC_GET_VOLUME_NAME FS_IOC_GETFSLABEL
422 #define F2FS_IOC_SET_VOLUME_NAME FS_IOC_SETFSLABEL
424 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
425 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
426 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
429 * should be same as XFS_IOC_GOINGDOWN.
430 * Flags for going down operation used by FS_IOC_GOINGDOWN
432 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
433 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
434 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
435 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
436 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
437 #define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
439 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
441 * ioctl commands in 32 bit emulation
443 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
444 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
445 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
448 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
449 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
451 struct f2fs_gc_range {
457 struct f2fs_defragment {
462 struct f2fs_move_range {
463 u32 dst_fd; /* destination fd */
464 u64 pos_in; /* start position in src_fd */
465 u64 pos_out; /* start position in dst_fd */
466 u64 len; /* size to move */
469 struct f2fs_flush_device {
470 u32 dev_num; /* device number to flush */
471 u32 segments; /* # of segments to flush */
474 /* for inline stuff */
475 #define DEF_INLINE_RESERVED_SIZE 1
476 static inline int get_extra_isize(struct inode *inode);
477 static inline int get_inline_xattr_addrs(struct inode *inode);
478 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
479 (CUR_ADDRS_PER_INODE(inode) - \
480 get_inline_xattr_addrs(inode) - \
481 DEF_INLINE_RESERVED_SIZE))
484 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
485 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
487 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
488 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
489 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
490 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
491 NR_INLINE_DENTRY(inode) + \
492 INLINE_DENTRY_BITMAP_SIZE(inode)))
495 * For INODE and NODE manager
497 /* for directory operations */
498 struct f2fs_dentry_ptr {
501 struct f2fs_dir_entry *dentry;
502 __u8 (*filename)[F2FS_SLOT_LEN];
507 static inline void make_dentry_ptr_block(struct inode *inode,
508 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
511 d->max = NR_DENTRY_IN_BLOCK;
512 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
513 d->bitmap = t->dentry_bitmap;
514 d->dentry = t->dentry;
515 d->filename = t->filename;
518 static inline void make_dentry_ptr_inline(struct inode *inode,
519 struct f2fs_dentry_ptr *d, void *t)
521 int entry_cnt = NR_INLINE_DENTRY(inode);
522 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
523 int reserved_size = INLINE_RESERVED_SIZE(inode);
527 d->nr_bitmap = bitmap_size;
529 d->dentry = t + bitmap_size + reserved_size;
530 d->filename = t + bitmap_size + reserved_size +
531 SIZE_OF_DIR_ENTRY * entry_cnt;
535 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
536 * as its node offset to distinguish from index node blocks.
537 * But some bits are used to mark the node block.
539 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
542 ALLOC_NODE, /* allocate a new node page if needed */
543 LOOKUP_NODE, /* look up a node without readahead */
545 * look up a node with readahead called
550 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
552 /* maximum retry quota flush count */
553 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
555 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
557 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
559 /* for in-memory extent cache entry */
560 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
562 /* number of extent info in extent cache we try to shrink */
563 #define EXTENT_CACHE_SHRINK_NUMBER 128
566 struct rb_node rb_node; /* rb node located in rb-tree */
567 unsigned int ofs; /* start offset of the entry */
568 unsigned int len; /* length of the entry */
572 unsigned int fofs; /* start offset in a file */
573 unsigned int len; /* length of the extent */
574 u32 blk; /* start block address of the extent */
578 struct rb_node rb_node; /* rb node located in rb-tree */
579 struct extent_info ei; /* extent info */
580 struct list_head list; /* node in global extent list of sbi */
581 struct extent_tree *et; /* extent tree pointer */
585 nid_t ino; /* inode number */
586 struct rb_root_cached root; /* root of extent info rb-tree */
587 struct extent_node *cached_en; /* recently accessed extent node */
588 struct extent_info largest; /* largested extent info */
589 struct list_head list; /* to be used by sbi->zombie_list */
590 rwlock_t lock; /* protect extent info rb-tree */
591 atomic_t node_cnt; /* # of extent node in rb-tree*/
592 bool largest_updated; /* largest extent updated */
596 * This structure is taken from ext4_map_blocks.
598 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
600 #define F2FS_MAP_NEW (1 << BH_New)
601 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
602 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
603 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
606 struct f2fs_map_blocks {
610 unsigned int m_flags;
611 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
612 pgoff_t *m_next_extent; /* point to next possible extent */
614 bool m_may_create; /* indicate it is from write path */
617 /* for flag in get_data_block */
619 F2FS_GET_BLOCK_DEFAULT,
620 F2FS_GET_BLOCK_FIEMAP,
623 F2FS_GET_BLOCK_PRE_DIO,
624 F2FS_GET_BLOCK_PRE_AIO,
625 F2FS_GET_BLOCK_PRECACHE,
629 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
631 #define FADVISE_COLD_BIT 0x01
632 #define FADVISE_LOST_PINO_BIT 0x02
633 #define FADVISE_ENCRYPT_BIT 0x04
634 #define FADVISE_ENC_NAME_BIT 0x08
635 #define FADVISE_KEEP_SIZE_BIT 0x10
636 #define FADVISE_HOT_BIT 0x20
637 #define FADVISE_VERITY_BIT 0x40 /* reserved */
639 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
641 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
642 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
643 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
644 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
645 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
646 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
647 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
648 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
649 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
650 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
651 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
652 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
653 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
654 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
655 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
656 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
658 #define DEF_DIR_LEVEL 0
666 struct f2fs_inode_info {
667 struct inode vfs_inode; /* serve a vfs inode */
668 unsigned long i_flags; /* keep an inode flags for ioctl */
669 unsigned char i_advise; /* use to give file attribute hints */
670 unsigned char i_dir_level; /* use for dentry level for large dir */
671 unsigned int i_current_depth; /* only for directory depth */
672 /* for gc failure statistic */
673 unsigned int i_gc_failures[MAX_GC_FAILURE];
674 unsigned int i_pino; /* parent inode number */
675 umode_t i_acl_mode; /* keep file acl mode temporarily */
677 /* Use below internally in f2fs*/
678 unsigned long flags; /* use to pass per-file flags */
679 struct rw_semaphore i_sem; /* protect fi info */
680 atomic_t dirty_pages; /* # of dirty pages */
681 f2fs_hash_t chash; /* hash value of given file name */
682 unsigned int clevel; /* maximum level of given file name */
683 struct task_struct *task; /* lookup and create consistency */
684 struct task_struct *cp_task; /* separate cp/wb IO stats*/
685 nid_t i_xattr_nid; /* node id that contains xattrs */
686 loff_t last_disk_size; /* lastly written file size */
689 struct dquot *i_dquot[MAXQUOTAS];
691 /* quota space reservation, managed internally by quota code */
692 qsize_t i_reserved_quota;
694 struct list_head dirty_list; /* dirty list for dirs and files */
695 struct list_head gdirty_list; /* linked in global dirty list */
696 struct list_head inmem_ilist; /* list for inmem inodes */
697 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
698 struct task_struct *inmem_task; /* store inmemory task */
699 struct mutex inmem_lock; /* lock for inmemory pages */
700 struct extent_tree *extent_tree; /* cached extent_tree entry */
702 /* avoid racing between foreground op and gc */
703 struct rw_semaphore i_gc_rwsem[2];
704 struct rw_semaphore i_mmap_sem;
705 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
707 int i_extra_isize; /* size of extra space located in i_addr */
708 kprojid_t i_projid; /* id for project quota */
709 int i_inline_xattr_size; /* inline xattr size */
710 struct timespec64 i_crtime; /* inode creation time */
711 struct timespec64 i_disk_time[4];/* inode disk times */
714 static inline void get_extent_info(struct extent_info *ext,
715 struct f2fs_extent *i_ext)
717 ext->fofs = le32_to_cpu(i_ext->fofs);
718 ext->blk = le32_to_cpu(i_ext->blk);
719 ext->len = le32_to_cpu(i_ext->len);
722 static inline void set_raw_extent(struct extent_info *ext,
723 struct f2fs_extent *i_ext)
725 i_ext->fofs = cpu_to_le32(ext->fofs);
726 i_ext->blk = cpu_to_le32(ext->blk);
727 i_ext->len = cpu_to_le32(ext->len);
730 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
731 u32 blk, unsigned int len)
738 static inline bool __is_discard_mergeable(struct discard_info *back,
739 struct discard_info *front, unsigned int max_len)
741 return (back->lstart + back->len == front->lstart) &&
742 (back->len + front->len <= max_len);
745 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
746 struct discard_info *back, unsigned int max_len)
748 return __is_discard_mergeable(back, cur, max_len);
751 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
752 struct discard_info *front, unsigned int max_len)
754 return __is_discard_mergeable(cur, front, max_len);
757 static inline bool __is_extent_mergeable(struct extent_info *back,
758 struct extent_info *front)
760 return (back->fofs + back->len == front->fofs &&
761 back->blk + back->len == front->blk);
764 static inline bool __is_back_mergeable(struct extent_info *cur,
765 struct extent_info *back)
767 return __is_extent_mergeable(back, cur);
770 static inline bool __is_front_mergeable(struct extent_info *cur,
771 struct extent_info *front)
773 return __is_extent_mergeable(cur, front);
776 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
777 static inline void __try_update_largest_extent(struct extent_tree *et,
778 struct extent_node *en)
780 if (en->ei.len > et->largest.len) {
781 et->largest = en->ei;
782 et->largest_updated = true;
787 * For free nid management
790 FREE_NID, /* newly added to free nid list */
791 PREALLOC_NID, /* it is preallocated */
795 struct f2fs_nm_info {
796 block_t nat_blkaddr; /* base disk address of NAT */
797 nid_t max_nid; /* maximum possible node ids */
798 nid_t available_nids; /* # of available node ids */
799 nid_t next_scan_nid; /* the next nid to be scanned */
800 unsigned int ram_thresh; /* control the memory footprint */
801 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
802 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
804 /* NAT cache management */
805 struct radix_tree_root nat_root;/* root of the nat entry cache */
806 struct radix_tree_root nat_set_root;/* root of the nat set cache */
807 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
808 struct list_head nat_entries; /* cached nat entry list (clean) */
809 spinlock_t nat_list_lock; /* protect clean nat entry list */
810 unsigned int nat_cnt; /* the # of cached nat entries */
811 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
812 unsigned int nat_blocks; /* # of nat blocks */
814 /* free node ids management */
815 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
816 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
817 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
818 spinlock_t nid_list_lock; /* protect nid lists ops */
819 struct mutex build_lock; /* lock for build free nids */
820 unsigned char **free_nid_bitmap;
821 unsigned char *nat_block_bitmap;
822 unsigned short *free_nid_count; /* free nid count of NAT block */
825 char *nat_bitmap; /* NAT bitmap pointer */
827 unsigned int nat_bits_blocks; /* # of nat bits blocks */
828 unsigned char *nat_bits; /* NAT bits blocks */
829 unsigned char *full_nat_bits; /* full NAT pages */
830 unsigned char *empty_nat_bits; /* empty NAT pages */
831 #ifdef CONFIG_F2FS_CHECK_FS
832 char *nat_bitmap_mir; /* NAT bitmap mirror */
834 int bitmap_size; /* bitmap size */
838 * this structure is used as one of function parameters.
839 * all the information are dedicated to a given direct node block determined
840 * by the data offset in a file.
842 struct dnode_of_data {
843 struct inode *inode; /* vfs inode pointer */
844 struct page *inode_page; /* its inode page, NULL is possible */
845 struct page *node_page; /* cached direct node page */
846 nid_t nid; /* node id of the direct node block */
847 unsigned int ofs_in_node; /* data offset in the node page */
848 bool inode_page_locked; /* inode page is locked or not */
849 bool node_changed; /* is node block changed */
850 char cur_level; /* level of hole node page */
851 char max_level; /* level of current page located */
852 block_t data_blkaddr; /* block address of the node block */
855 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
856 struct page *ipage, struct page *npage, nid_t nid)
858 memset(dn, 0, sizeof(*dn));
860 dn->inode_page = ipage;
861 dn->node_page = npage;
868 * By default, there are 6 active log areas across the whole main area.
869 * When considering hot and cold data separation to reduce cleaning overhead,
870 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
872 * In the current design, you should not change the numbers intentionally.
873 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
874 * logs individually according to the underlying devices. (default: 6)
875 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
876 * data and 8 for node logs.
878 #define NR_CURSEG_DATA_TYPE (3)
879 #define NR_CURSEG_NODE_TYPE (3)
880 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
883 CURSEG_HOT_DATA = 0, /* directory entry blocks */
884 CURSEG_WARM_DATA, /* data blocks */
885 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
886 CURSEG_HOT_NODE, /* direct node blocks of directory files */
887 CURSEG_WARM_NODE, /* direct node blocks of normal files */
888 CURSEG_COLD_NODE, /* indirect node blocks */
893 struct completion wait;
894 struct llist_node llnode;
899 struct flush_cmd_control {
900 struct task_struct *f2fs_issue_flush; /* flush thread */
901 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
902 atomic_t issued_flush; /* # of issued flushes */
903 atomic_t queued_flush; /* # of queued flushes */
904 struct llist_head issue_list; /* list for command issue */
905 struct llist_node *dispatch_list; /* list for command dispatch */
908 struct f2fs_sm_info {
909 struct sit_info *sit_info; /* whole segment information */
910 struct free_segmap_info *free_info; /* free segment information */
911 struct dirty_seglist_info *dirty_info; /* dirty segment information */
912 struct curseg_info *curseg_array; /* active segment information */
914 struct rw_semaphore curseg_lock; /* for preventing curseg change */
916 block_t seg0_blkaddr; /* block address of 0'th segment */
917 block_t main_blkaddr; /* start block address of main area */
918 block_t ssa_blkaddr; /* start block address of SSA area */
920 unsigned int segment_count; /* total # of segments */
921 unsigned int main_segments; /* # of segments in main area */
922 unsigned int reserved_segments; /* # of reserved segments */
923 unsigned int ovp_segments; /* # of overprovision segments */
925 /* a threshold to reclaim prefree segments */
926 unsigned int rec_prefree_segments;
928 /* for batched trimming */
929 unsigned int trim_sections; /* # of sections to trim */
931 struct list_head sit_entry_set; /* sit entry set list */
933 unsigned int ipu_policy; /* in-place-update policy */
934 unsigned int min_ipu_util; /* in-place-update threshold */
935 unsigned int min_fsync_blocks; /* threshold for fsync */
936 unsigned int min_seq_blocks; /* threshold for sequential blocks */
937 unsigned int min_hot_blocks; /* threshold for hot block allocation */
938 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
940 /* for flush command control */
941 struct flush_cmd_control *fcc_info;
943 /* for discard command control */
944 struct discard_cmd_control *dcc_info;
951 * COUNT_TYPE for monitoring
953 * f2fs monitors the number of several block types such as on-writeback,
954 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
956 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
976 * The below are the page types of bios used in submit_bio().
977 * The available types are:
978 * DATA User data pages. It operates as async mode.
979 * NODE Node pages. It operates as async mode.
980 * META FS metadata pages such as SIT, NAT, CP.
981 * NR_PAGE_TYPE The number of page types.
982 * META_FLUSH Make sure the previous pages are written
983 * with waiting the bio's completion
984 * ... Only can be used with META.
986 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
993 INMEM, /* the below types are used by tracepoints only. */
1002 HOT = 0, /* must be zero for meta bio */
1008 enum need_lock_type {
1014 enum cp_reason_type {
1028 APP_DIRECT_IO, /* app direct IOs */
1029 APP_BUFFERED_IO, /* app buffered IOs */
1030 APP_WRITE_IO, /* app write IOs */
1031 APP_MAPPED_IO, /* app mapped IOs */
1032 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1033 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1034 FS_META_IO, /* meta IOs from kworker/reclaimer */
1035 FS_GC_DATA_IO, /* data IOs from forground gc */
1036 FS_GC_NODE_IO, /* node IOs from forground gc */
1037 FS_CP_DATA_IO, /* data IOs from checkpoint */
1038 FS_CP_NODE_IO, /* node IOs from checkpoint */
1039 FS_CP_META_IO, /* meta IOs from checkpoint */
1040 FS_DISCARD, /* discard */
1044 struct f2fs_io_info {
1045 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1046 nid_t ino; /* inode number */
1047 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1048 enum temp_type temp; /* contains HOT/WARM/COLD */
1049 int op; /* contains REQ_OP_ */
1050 int op_flags; /* req_flag_bits */
1051 block_t new_blkaddr; /* new block address to be written */
1052 block_t old_blkaddr; /* old block address before Cow */
1053 struct page *page; /* page to be written */
1054 struct page *encrypted_page; /* encrypted page */
1055 struct list_head list; /* serialize IOs */
1056 bool submitted; /* indicate IO submission */
1057 int need_lock; /* indicate we need to lock cp_rwsem */
1058 bool in_list; /* indicate fio is in io_list */
1059 bool is_por; /* indicate IO is from recovery or not */
1060 bool retry; /* need to reallocate block address */
1061 enum iostat_type io_type; /* io type */
1062 struct writeback_control *io_wbc; /* writeback control */
1063 struct bio **bio; /* bio for ipu */
1064 sector_t *last_block; /* last block number in bio */
1065 unsigned char version; /* version of the node */
1068 #define is_read_io(rw) ((rw) == READ)
1069 struct f2fs_bio_info {
1070 struct f2fs_sb_info *sbi; /* f2fs superblock */
1071 struct bio *bio; /* bios to merge */
1072 sector_t last_block_in_bio; /* last block number */
1073 struct f2fs_io_info fio; /* store buffered io info. */
1074 struct rw_semaphore io_rwsem; /* blocking op for bio */
1075 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1076 struct list_head io_list; /* track fios */
1079 #define FDEV(i) (sbi->devs[i])
1080 #define RDEV(i) (raw_super->devs[i])
1081 struct f2fs_dev_info {
1082 struct block_device *bdev;
1083 char path[MAX_PATH_LEN];
1084 unsigned int total_segments;
1087 #ifdef CONFIG_BLK_DEV_ZONED
1088 unsigned int nr_blkz; /* Total number of zones */
1089 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1094 DIR_INODE, /* for dirty dir inode */
1095 FILE_INODE, /* for dirty regular/symlink inode */
1096 DIRTY_META, /* for all dirtied inode metadata */
1097 ATOMIC_FILE, /* for all atomic files */
1101 /* for inner inode cache management */
1102 struct inode_management {
1103 struct radix_tree_root ino_root; /* ino entry array */
1104 spinlock_t ino_lock; /* for ino entry lock */
1105 struct list_head ino_list; /* inode list head */
1106 unsigned long ino_num; /* number of entries */
1109 /* For s_flag in struct f2fs_sb_info */
1111 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1112 SBI_IS_CLOSE, /* specify unmounting */
1113 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1114 SBI_POR_DOING, /* recovery is doing or not */
1115 SBI_NEED_SB_WRITE, /* need to recover superblock */
1116 SBI_NEED_CP, /* need to checkpoint */
1117 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1118 SBI_IS_RECOVERED, /* recovered orphan/data */
1119 SBI_CP_DISABLED, /* CP was disabled last mount */
1120 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1121 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1122 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1123 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1124 SBI_IS_RESIZEFS, /* resizefs is in process */
1133 UMOUNT_DISCARD_TIMEOUT,
1145 WHINT_MODE_OFF, /* not pass down write hints */
1146 WHINT_MODE_USER, /* try to pass down hints given by users */
1147 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1151 ALLOC_MODE_DEFAULT, /* stay default */
1152 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1156 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1157 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1158 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1161 #ifdef CONFIG_FS_ENCRYPTION
1162 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1163 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1165 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1168 struct f2fs_sb_info {
1169 struct super_block *sb; /* pointer to VFS super block */
1170 struct proc_dir_entry *s_proc; /* proc entry */
1171 struct f2fs_super_block *raw_super; /* raw super block pointer */
1172 struct rw_semaphore sb_lock; /* lock for raw super block */
1173 int valid_super_block; /* valid super block no */
1174 unsigned long s_flag; /* flags for sbi */
1175 struct mutex writepages; /* mutex for writepages() */
1176 #ifdef CONFIG_UNICODE
1177 struct unicode_map *s_encoding;
1178 __u16 s_encoding_flags;
1181 #ifdef CONFIG_BLK_DEV_ZONED
1182 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1183 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1186 /* for node-related operations */
1187 struct f2fs_nm_info *nm_info; /* node manager */
1188 struct inode *node_inode; /* cache node blocks */
1190 /* for segment-related operations */
1191 struct f2fs_sm_info *sm_info; /* segment manager */
1193 /* for bio operations */
1194 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1195 /* keep migration IO order for LFS mode */
1196 struct rw_semaphore io_order_lock;
1197 mempool_t *write_io_dummy; /* Dummy pages */
1199 /* for checkpoint */
1200 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1201 int cur_cp_pack; /* remain current cp pack */
1202 spinlock_t cp_lock; /* for flag in ckpt */
1203 struct inode *meta_inode; /* cache meta blocks */
1204 struct mutex cp_mutex; /* checkpoint procedure lock */
1205 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1206 struct rw_semaphore node_write; /* locking node writes */
1207 struct rw_semaphore node_change; /* locking node change */
1208 wait_queue_head_t cp_wait;
1209 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1210 long interval_time[MAX_TIME]; /* to store thresholds */
1212 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1214 spinlock_t fsync_node_lock; /* for node entry lock */
1215 struct list_head fsync_node_list; /* node list head */
1216 unsigned int fsync_seg_id; /* sequence id */
1217 unsigned int fsync_node_num; /* number of node entries */
1219 /* for orphan inode, use 0'th array */
1220 unsigned int max_orphans; /* max orphan inodes */
1222 /* for inode management */
1223 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1224 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1225 struct mutex flush_lock; /* for flush exclusion */
1227 /* for extent tree cache */
1228 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1229 struct mutex extent_tree_lock; /* locking extent radix tree */
1230 struct list_head extent_list; /* lru list for shrinker */
1231 spinlock_t extent_lock; /* locking extent lru list */
1232 atomic_t total_ext_tree; /* extent tree count */
1233 struct list_head zombie_list; /* extent zombie tree list */
1234 atomic_t total_zombie_tree; /* extent zombie tree count */
1235 atomic_t total_ext_node; /* extent info count */
1237 /* basic filesystem units */
1238 unsigned int log_sectors_per_block; /* log2 sectors per block */
1239 unsigned int log_blocksize; /* log2 block size */
1240 unsigned int blocksize; /* block size */
1241 unsigned int root_ino_num; /* root inode number*/
1242 unsigned int node_ino_num; /* node inode number*/
1243 unsigned int meta_ino_num; /* meta inode number*/
1244 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1245 unsigned int blocks_per_seg; /* blocks per segment */
1246 unsigned int segs_per_sec; /* segments per section */
1247 unsigned int secs_per_zone; /* sections per zone */
1248 unsigned int total_sections; /* total section count */
1249 struct mutex resize_mutex; /* for resize exclusion */
1250 unsigned int total_node_count; /* total node block count */
1251 unsigned int total_valid_node_count; /* valid node block count */
1252 loff_t max_file_blocks; /* max block index of file */
1253 int dir_level; /* directory level */
1254 int readdir_ra; /* readahead inode in readdir */
1256 block_t user_block_count; /* # of user blocks */
1257 block_t total_valid_block_count; /* # of valid blocks */
1258 block_t discard_blks; /* discard command candidats */
1259 block_t last_valid_block_count; /* for recovery */
1260 block_t reserved_blocks; /* configurable reserved blocks */
1261 block_t current_reserved_blocks; /* current reserved blocks */
1263 /* Additional tracking for no checkpoint mode */
1264 block_t unusable_block_count; /* # of blocks saved by last cp */
1266 unsigned int nquota_files; /* # of quota sysfile */
1267 struct rw_semaphore quota_sem; /* blocking cp for flags */
1269 /* # of pages, see count_type */
1270 atomic_t nr_pages[NR_COUNT_TYPE];
1271 /* # of allocated blocks */
1272 struct percpu_counter alloc_valid_block_count;
1274 /* writeback control */
1275 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1277 /* valid inode count */
1278 struct percpu_counter total_valid_inode_count;
1280 struct f2fs_mount_info mount_opt; /* mount options */
1282 /* for cleaning operations */
1283 struct mutex gc_mutex; /* mutex for GC */
1284 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1285 unsigned int cur_victim_sec; /* current victim section num */
1286 unsigned int gc_mode; /* current GC state */
1287 unsigned int next_victim_seg[2]; /* next segment in victim section */
1288 /* for skip statistic */
1289 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1290 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1292 /* threshold for gc trials on pinned files */
1293 u64 gc_pin_file_threshold;
1295 /* maximum # of trials to find a victim segment for SSR and GC */
1296 unsigned int max_victim_search;
1297 /* migration granularity of garbage collection, unit: segment */
1298 unsigned int migration_granularity;
1301 * for stat information.
1302 * one is for the LFS mode, and the other is for the SSR mode.
1304 #ifdef CONFIG_F2FS_STAT_FS
1305 struct f2fs_stat_info *stat_info; /* FS status information */
1306 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1307 unsigned int segment_count[2]; /* # of allocated segments */
1308 unsigned int block_count[2]; /* # of allocated blocks */
1309 atomic_t inplace_count; /* # of inplace update */
1310 atomic64_t total_hit_ext; /* # of lookup extent cache */
1311 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1312 atomic64_t read_hit_largest; /* # of hit largest extent node */
1313 atomic64_t read_hit_cached; /* # of hit cached extent node */
1314 atomic_t inline_xattr; /* # of inline_xattr inodes */
1315 atomic_t inline_inode; /* # of inline_data inodes */
1316 atomic_t inline_dir; /* # of inline_dentry inodes */
1317 atomic_t aw_cnt; /* # of atomic writes */
1318 atomic_t vw_cnt; /* # of volatile writes */
1319 atomic_t max_aw_cnt; /* max # of atomic writes */
1320 atomic_t max_vw_cnt; /* max # of volatile writes */
1321 int bg_gc; /* background gc calls */
1322 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1323 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1324 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1326 spinlock_t stat_lock; /* lock for stat operations */
1328 /* For app/fs IO statistics */
1329 spinlock_t iostat_lock;
1330 unsigned long long write_iostat[NR_IO_TYPE];
1333 /* For sysfs suppport */
1334 struct kobject s_kobj;
1335 struct completion s_kobj_unregister;
1337 /* For shrinker support */
1338 struct list_head s_list;
1339 int s_ndevs; /* number of devices */
1340 struct f2fs_dev_info *devs; /* for device list */
1341 unsigned int dirty_device; /* for checkpoint data flush */
1342 spinlock_t dev_lock; /* protect dirty_device */
1343 struct mutex umount_mutex;
1344 unsigned int shrinker_run_no;
1346 /* For write statistics */
1347 u64 sectors_written_start;
1350 /* Reference to checksum algorithm driver via cryptoapi */
1351 struct crypto_shash *s_chksum_driver;
1353 /* Precomputed FS UUID checksum for seeding other checksums */
1354 __u32 s_chksum_seed;
1357 struct f2fs_private_dio {
1358 struct inode *inode;
1360 bio_end_io_t *orig_end_io;
1364 #ifdef CONFIG_F2FS_FAULT_INJECTION
1365 #define f2fs_show_injection_info(type) \
1366 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pS\n", \
1367 KERN_INFO, f2fs_fault_name[type], \
1368 __func__, __builtin_return_address(0))
1369 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1371 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1373 if (!ffi->inject_rate)
1376 if (!IS_FAULT_SET(ffi, type))
1379 atomic_inc(&ffi->inject_ops);
1380 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1381 atomic_set(&ffi->inject_ops, 0);
1387 #define f2fs_show_injection_info(type) do { } while (0)
1388 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1395 * Test if the mounted volume is a multi-device volume.
1396 * - For a single regular disk volume, sbi->s_ndevs is 0.
1397 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1398 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1400 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1402 return sbi->s_ndevs > 1;
1405 /* For write statistics. Suppose sector size is 512 bytes,
1406 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1408 #define BD_PART_WRITTEN(s) \
1409 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \
1410 (s)->sectors_written_start) >> 1)
1412 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1414 unsigned long now = jiffies;
1416 sbi->last_time[type] = now;
1418 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1419 if (type == REQ_TIME) {
1420 sbi->last_time[DISCARD_TIME] = now;
1421 sbi->last_time[GC_TIME] = now;
1425 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1427 unsigned long interval = sbi->interval_time[type] * HZ;
1429 return time_after(jiffies, sbi->last_time[type] + interval);
1432 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1435 unsigned long interval = sbi->interval_time[type] * HZ;
1436 unsigned int wait_ms = 0;
1439 delta = (sbi->last_time[type] + interval) - jiffies;
1441 wait_ms = jiffies_to_msecs(delta);
1449 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1450 const void *address, unsigned int length)
1453 struct shash_desc shash;
1458 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1460 desc.shash.tfm = sbi->s_chksum_driver;
1461 *(u32 *)desc.ctx = crc;
1463 err = crypto_shash_update(&desc.shash, address, length);
1466 return *(u32 *)desc.ctx;
1469 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1470 unsigned int length)
1472 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1475 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1476 void *buf, size_t buf_size)
1478 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1481 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1482 const void *address, unsigned int length)
1484 return __f2fs_crc32(sbi, crc, address, length);
1487 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1489 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1492 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1494 return sb->s_fs_info;
1497 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1499 return F2FS_SB(inode->i_sb);
1502 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1504 return F2FS_I_SB(mapping->host);
1507 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1509 return F2FS_M_SB(page_file_mapping(page));
1512 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1514 return (struct f2fs_super_block *)(sbi->raw_super);
1517 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1519 return (struct f2fs_checkpoint *)(sbi->ckpt);
1522 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1524 return (struct f2fs_node *)page_address(page);
1527 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1529 return &((struct f2fs_node *)page_address(page))->i;
1532 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1534 return (struct f2fs_nm_info *)(sbi->nm_info);
1537 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1539 return (struct f2fs_sm_info *)(sbi->sm_info);
1542 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1544 return (struct sit_info *)(SM_I(sbi)->sit_info);
1547 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1549 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1552 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1554 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1557 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1559 return sbi->meta_inode->i_mapping;
1562 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1564 return sbi->node_inode->i_mapping;
1567 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1569 return test_bit(type, &sbi->s_flag);
1572 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1574 set_bit(type, &sbi->s_flag);
1577 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1579 clear_bit(type, &sbi->s_flag);
1582 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1584 return le64_to_cpu(cp->checkpoint_ver);
1587 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1589 if (type < F2FS_MAX_QUOTAS)
1590 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1594 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1596 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1597 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1600 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1602 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1604 return ckpt_flags & f;
1607 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1609 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1612 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1614 unsigned int ckpt_flags;
1616 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1618 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1621 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1623 unsigned long flags;
1625 spin_lock_irqsave(&sbi->cp_lock, flags);
1626 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1627 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1630 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1632 unsigned int ckpt_flags;
1634 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1636 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1639 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1641 unsigned long flags;
1643 spin_lock_irqsave(&sbi->cp_lock, flags);
1644 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1645 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1648 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1650 unsigned long flags;
1651 unsigned char *nat_bits;
1654 * In order to re-enable nat_bits we need to call fsck.f2fs by
1655 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
1656 * so let's rely on regular fsck or unclean shutdown.
1660 spin_lock_irqsave(&sbi->cp_lock, flags);
1661 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1662 nat_bits = NM_I(sbi)->nat_bits;
1663 NM_I(sbi)->nat_bits = NULL;
1665 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1670 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1671 struct cp_control *cpc)
1673 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1675 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1678 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1680 down_read(&sbi->cp_rwsem);
1683 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1685 return down_read_trylock(&sbi->cp_rwsem);
1688 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1690 up_read(&sbi->cp_rwsem);
1693 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1695 down_write(&sbi->cp_rwsem);
1698 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1700 up_write(&sbi->cp_rwsem);
1703 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1705 int reason = CP_SYNC;
1707 if (test_opt(sbi, FASTBOOT))
1708 reason = CP_FASTBOOT;
1709 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1714 static inline bool __remain_node_summaries(int reason)
1716 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1719 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1721 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1722 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1726 * Check whether the inode has blocks or not
1728 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1730 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1732 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1735 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1737 return ofs == XATTR_NODE_OFFSET;
1740 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1741 struct inode *inode, bool cap)
1745 if (!test_opt(sbi, RESERVE_ROOT))
1747 if (IS_NOQUOTA(inode))
1749 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1751 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1752 in_group_p(F2FS_OPTION(sbi).s_resgid))
1754 if (cap && capable(CAP_SYS_RESOURCE))
1759 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1760 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1761 struct inode *inode, blkcnt_t *count)
1763 blkcnt_t diff = 0, release = 0;
1764 block_t avail_user_block_count;
1767 ret = dquot_reserve_block(inode, *count);
1771 if (time_to_inject(sbi, FAULT_BLOCK)) {
1772 f2fs_show_injection_info(FAULT_BLOCK);
1778 * let's increase this in prior to actual block count change in order
1779 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1781 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1783 spin_lock(&sbi->stat_lock);
1784 sbi->total_valid_block_count += (block_t)(*count);
1785 avail_user_block_count = sbi->user_block_count -
1786 sbi->current_reserved_blocks;
1788 if (!__allow_reserved_blocks(sbi, inode, true))
1789 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1790 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1791 if (avail_user_block_count > sbi->unusable_block_count)
1792 avail_user_block_count -= sbi->unusable_block_count;
1794 avail_user_block_count = 0;
1796 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1797 diff = sbi->total_valid_block_count - avail_user_block_count;
1802 sbi->total_valid_block_count -= diff;
1804 spin_unlock(&sbi->stat_lock);
1808 spin_unlock(&sbi->stat_lock);
1810 if (unlikely(release)) {
1811 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1812 dquot_release_reservation_block(inode, release);
1814 f2fs_i_blocks_write(inode, *count, true, true);
1818 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1820 dquot_release_reservation_block(inode, release);
1825 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
1827 #define f2fs_err(sbi, fmt, ...) \
1828 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
1829 #define f2fs_warn(sbi, fmt, ...) \
1830 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
1831 #define f2fs_notice(sbi, fmt, ...) \
1832 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
1833 #define f2fs_info(sbi, fmt, ...) \
1834 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
1835 #define f2fs_debug(sbi, fmt, ...) \
1836 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
1838 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1839 struct inode *inode,
1842 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1844 spin_lock(&sbi->stat_lock);
1845 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1846 sbi->total_valid_block_count -= (block_t)count;
1847 if (sbi->reserved_blocks &&
1848 sbi->current_reserved_blocks < sbi->reserved_blocks)
1849 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1850 sbi->current_reserved_blocks + count);
1851 spin_unlock(&sbi->stat_lock);
1852 if (unlikely(inode->i_blocks < sectors)) {
1853 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
1855 (unsigned long long)inode->i_blocks,
1856 (unsigned long long)sectors);
1857 set_sbi_flag(sbi, SBI_NEED_FSCK);
1860 f2fs_i_blocks_write(inode, count, false, true);
1863 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1865 atomic_inc(&sbi->nr_pages[count_type]);
1867 if (count_type == F2FS_DIRTY_DENTS ||
1868 count_type == F2FS_DIRTY_NODES ||
1869 count_type == F2FS_DIRTY_META ||
1870 count_type == F2FS_DIRTY_QDATA ||
1871 count_type == F2FS_DIRTY_IMETA)
1872 set_sbi_flag(sbi, SBI_IS_DIRTY);
1875 static inline void inode_inc_dirty_pages(struct inode *inode)
1877 atomic_inc(&F2FS_I(inode)->dirty_pages);
1878 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1879 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1880 if (IS_NOQUOTA(inode))
1881 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1884 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1886 atomic_dec(&sbi->nr_pages[count_type]);
1889 static inline void inode_dec_dirty_pages(struct inode *inode)
1891 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1892 !S_ISLNK(inode->i_mode))
1895 atomic_dec(&F2FS_I(inode)->dirty_pages);
1896 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1897 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1898 if (IS_NOQUOTA(inode))
1899 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1902 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1904 return atomic_read(&sbi->nr_pages[count_type]);
1907 static inline int get_dirty_pages(struct inode *inode)
1909 return atomic_read(&F2FS_I(inode)->dirty_pages);
1912 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1914 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1915 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1916 sbi->log_blocks_per_seg;
1918 return segs / sbi->segs_per_sec;
1921 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1923 return sbi->total_valid_block_count;
1926 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1928 return sbi->discard_blks;
1931 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1933 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1935 /* return NAT or SIT bitmap */
1936 if (flag == NAT_BITMAP)
1937 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1938 else if (flag == SIT_BITMAP)
1939 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1944 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1946 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1949 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1951 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1954 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
1955 offset = (flag == SIT_BITMAP) ?
1956 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
1958 * if large_nat_bitmap feature is enabled, leave checksum
1959 * protection for all nat/sit bitmaps.
1961 return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32);
1964 if (__cp_payload(sbi) > 0) {
1965 if (flag == NAT_BITMAP)
1966 return &ckpt->sit_nat_version_bitmap;
1968 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1970 offset = (flag == NAT_BITMAP) ?
1971 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1972 return &ckpt->sit_nat_version_bitmap + offset;
1976 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1978 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1980 if (sbi->cur_cp_pack == 2)
1981 start_addr += sbi->blocks_per_seg;
1985 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1987 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1989 if (sbi->cur_cp_pack == 1)
1990 start_addr += sbi->blocks_per_seg;
1994 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1996 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1999 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2001 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2004 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2005 struct inode *inode, bool is_inode)
2007 block_t valid_block_count;
2008 unsigned int valid_node_count, user_block_count;
2013 err = dquot_alloc_inode(inode);
2018 err = dquot_reserve_block(inode, 1);
2023 if (time_to_inject(sbi, FAULT_BLOCK)) {
2024 f2fs_show_injection_info(FAULT_BLOCK);
2028 spin_lock(&sbi->stat_lock);
2030 valid_block_count = sbi->total_valid_block_count +
2031 sbi->current_reserved_blocks + 1;
2033 if (!__allow_reserved_blocks(sbi, inode, false))
2034 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2035 user_block_count = sbi->user_block_count;
2036 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2037 user_block_count -= sbi->unusable_block_count;
2039 if (unlikely(valid_block_count > user_block_count)) {
2040 spin_unlock(&sbi->stat_lock);
2044 valid_node_count = sbi->total_valid_node_count + 1;
2045 if (unlikely(valid_node_count > sbi->total_node_count)) {
2046 spin_unlock(&sbi->stat_lock);
2050 sbi->total_valid_node_count++;
2051 sbi->total_valid_block_count++;
2052 spin_unlock(&sbi->stat_lock);
2056 f2fs_mark_inode_dirty_sync(inode, true);
2058 f2fs_i_blocks_write(inode, 1, true, true);
2061 percpu_counter_inc(&sbi->alloc_valid_block_count);
2067 dquot_free_inode(inode);
2069 dquot_release_reservation_block(inode, 1);
2074 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2075 struct inode *inode, bool is_inode)
2077 spin_lock(&sbi->stat_lock);
2079 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2080 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2082 sbi->total_valid_node_count--;
2083 sbi->total_valid_block_count--;
2084 if (sbi->reserved_blocks &&
2085 sbi->current_reserved_blocks < sbi->reserved_blocks)
2086 sbi->current_reserved_blocks++;
2088 spin_unlock(&sbi->stat_lock);
2091 dquot_free_inode(inode);
2093 if (unlikely(inode->i_blocks == 0)) {
2094 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu",
2096 (unsigned long long)inode->i_blocks);
2097 set_sbi_flag(sbi, SBI_NEED_FSCK);
2100 f2fs_i_blocks_write(inode, 1, false, true);
2104 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2106 return sbi->total_valid_node_count;
2109 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2111 percpu_counter_inc(&sbi->total_valid_inode_count);
2114 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2116 percpu_counter_dec(&sbi->total_valid_inode_count);
2119 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2121 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2124 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2125 pgoff_t index, bool for_write)
2129 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2131 page = find_get_page_flags(mapping, index,
2132 FGP_LOCK | FGP_ACCESSED);
2134 page = find_lock_page(mapping, index);
2138 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2139 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
2145 return grab_cache_page(mapping, index);
2146 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2149 static inline struct page *f2fs_pagecache_get_page(
2150 struct address_space *mapping, pgoff_t index,
2151 int fgp_flags, gfp_t gfp_mask)
2153 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2154 f2fs_show_injection_info(FAULT_PAGE_GET);
2158 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2161 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2163 char *src_kaddr = kmap(src);
2164 char *dst_kaddr = kmap(dst);
2166 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2171 static inline void f2fs_put_page(struct page *page, int unlock)
2177 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2183 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2186 f2fs_put_page(dn->node_page, 1);
2187 if (dn->inode_page && dn->node_page != dn->inode_page)
2188 f2fs_put_page(dn->inode_page, 0);
2189 dn->node_page = NULL;
2190 dn->inode_page = NULL;
2193 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2196 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2199 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2204 entry = kmem_cache_alloc(cachep, flags);
2206 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2210 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
2211 int npages, bool no_fail)
2216 /* No failure on bio allocation */
2217 bio = bio_alloc(GFP_NOIO, npages);
2219 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
2222 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
2223 f2fs_show_injection_info(FAULT_ALLOC_BIO);
2227 return bio_alloc(GFP_KERNEL, npages);
2230 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2232 if (sbi->gc_mode == GC_URGENT)
2235 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2236 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2237 get_pages(sbi, F2FS_WB_CP_DATA) ||
2238 get_pages(sbi, F2FS_DIO_READ) ||
2239 get_pages(sbi, F2FS_DIO_WRITE))
2242 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2243 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2246 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2247 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2250 return f2fs_time_over(sbi, type);
2253 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2254 unsigned long index, void *item)
2256 while (radix_tree_insert(root, index, item))
2260 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2262 static inline bool IS_INODE(struct page *page)
2264 struct f2fs_node *p = F2FS_NODE(page);
2266 return RAW_IS_INODE(p);
2269 static inline int offset_in_addr(struct f2fs_inode *i)
2271 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2272 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2275 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2277 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2280 static inline int f2fs_has_extra_attr(struct inode *inode);
2281 static inline block_t datablock_addr(struct inode *inode,
2282 struct page *node_page, unsigned int offset)
2284 struct f2fs_node *raw_node;
2287 bool is_inode = IS_INODE(node_page);
2289 raw_node = F2FS_NODE(node_page);
2291 /* from GC path only */
2294 base = offset_in_addr(&raw_node->i);
2295 else if (f2fs_has_extra_attr(inode))
2296 base = get_extra_isize(inode);
2299 addr_array = blkaddr_in_node(raw_node);
2300 return le32_to_cpu(addr_array[base + offset]);
2303 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2308 mask = 1 << (7 - (nr & 0x07));
2309 return mask & *addr;
2312 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2317 mask = 1 << (7 - (nr & 0x07));
2321 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2326 mask = 1 << (7 - (nr & 0x07));
2330 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2336 mask = 1 << (7 - (nr & 0x07));
2342 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2348 mask = 1 << (7 - (nr & 0x07));
2354 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2359 mask = 1 << (7 - (nr & 0x07));
2364 * On-disk inode flags (f2fs_inode::i_flags)
2366 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2367 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2368 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2369 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2370 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2371 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2372 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2373 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2374 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2376 /* Flags that should be inherited by new inodes from their parent. */
2377 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2378 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2381 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2382 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2385 /* Flags that are appropriate for non-directories/regular files. */
2386 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2388 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2392 else if (S_ISREG(mode))
2393 return flags & F2FS_REG_FLMASK;
2395 return flags & F2FS_OTHER_FLMASK;
2398 /* used for f2fs_inode_info->flags */
2400 FI_NEW_INODE, /* indicate newly allocated inode */
2401 FI_DIRTY_INODE, /* indicate inode is dirty or not */
2402 FI_AUTO_RECOVER, /* indicate inode is recoverable */
2403 FI_DIRTY_DIR, /* indicate directory has dirty pages */
2404 FI_INC_LINK, /* need to increment i_nlink */
2405 FI_ACL_MODE, /* indicate acl mode */
2406 FI_NO_ALLOC, /* should not allocate any blocks */
2407 FI_FREE_NID, /* free allocated nide */
2408 FI_NO_EXTENT, /* not to use the extent cache */
2409 FI_INLINE_XATTR, /* used for inline xattr */
2410 FI_INLINE_DATA, /* used for inline data*/
2411 FI_INLINE_DENTRY, /* used for inline dentry */
2412 FI_APPEND_WRITE, /* inode has appended data */
2413 FI_UPDATE_WRITE, /* inode has in-place-update data */
2414 FI_NEED_IPU, /* used for ipu per file */
2415 FI_ATOMIC_FILE, /* indicate atomic file */
2416 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
2417 FI_VOLATILE_FILE, /* indicate volatile file */
2418 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
2419 FI_DROP_CACHE, /* drop dirty page cache */
2420 FI_DATA_EXIST, /* indicate data exists */
2421 FI_INLINE_DOTS, /* indicate inline dot dentries */
2422 FI_DO_DEFRAG, /* indicate defragment is running */
2423 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
2424 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
2425 FI_HOT_DATA, /* indicate file is hot */
2426 FI_EXTRA_ATTR, /* indicate file has extra attribute */
2427 FI_PROJ_INHERIT, /* indicate file inherits projectid */
2428 FI_PIN_FILE, /* indicate file should not be gced */
2429 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
2432 static inline void __mark_inode_dirty_flag(struct inode *inode,
2436 case FI_INLINE_XATTR:
2437 case FI_INLINE_DATA:
2438 case FI_INLINE_DENTRY:
2444 case FI_INLINE_DOTS:
2446 f2fs_mark_inode_dirty_sync(inode, true);
2450 static inline void set_inode_flag(struct inode *inode, int flag)
2452 if (!test_bit(flag, &F2FS_I(inode)->flags))
2453 set_bit(flag, &F2FS_I(inode)->flags);
2454 __mark_inode_dirty_flag(inode, flag, true);
2457 static inline int is_inode_flag_set(struct inode *inode, int flag)
2459 return test_bit(flag, &F2FS_I(inode)->flags);
2462 static inline void clear_inode_flag(struct inode *inode, int flag)
2464 if (test_bit(flag, &F2FS_I(inode)->flags))
2465 clear_bit(flag, &F2FS_I(inode)->flags);
2466 __mark_inode_dirty_flag(inode, flag, false);
2469 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2471 F2FS_I(inode)->i_acl_mode = mode;
2472 set_inode_flag(inode, FI_ACL_MODE);
2473 f2fs_mark_inode_dirty_sync(inode, false);
2476 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2482 f2fs_mark_inode_dirty_sync(inode, true);
2485 static inline void f2fs_i_blocks_write(struct inode *inode,
2486 block_t diff, bool add, bool claim)
2488 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2489 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2491 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2494 dquot_claim_block(inode, diff);
2496 dquot_alloc_block_nofail(inode, diff);
2498 dquot_free_block(inode, diff);
2501 f2fs_mark_inode_dirty_sync(inode, true);
2502 if (clean || recover)
2503 set_inode_flag(inode, FI_AUTO_RECOVER);
2506 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2508 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2509 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2511 if (i_size_read(inode) == i_size)
2514 i_size_write(inode, i_size);
2515 f2fs_mark_inode_dirty_sync(inode, true);
2516 if (clean || recover)
2517 set_inode_flag(inode, FI_AUTO_RECOVER);
2520 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2522 F2FS_I(inode)->i_current_depth = depth;
2523 f2fs_mark_inode_dirty_sync(inode, true);
2526 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2529 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2530 f2fs_mark_inode_dirty_sync(inode, true);
2533 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2535 F2FS_I(inode)->i_xattr_nid = xnid;
2536 f2fs_mark_inode_dirty_sync(inode, true);
2539 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2541 F2FS_I(inode)->i_pino = pino;
2542 f2fs_mark_inode_dirty_sync(inode, true);
2545 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2547 struct f2fs_inode_info *fi = F2FS_I(inode);
2549 if (ri->i_inline & F2FS_INLINE_XATTR)
2550 set_bit(FI_INLINE_XATTR, &fi->flags);
2551 if (ri->i_inline & F2FS_INLINE_DATA)
2552 set_bit(FI_INLINE_DATA, &fi->flags);
2553 if (ri->i_inline & F2FS_INLINE_DENTRY)
2554 set_bit(FI_INLINE_DENTRY, &fi->flags);
2555 if (ri->i_inline & F2FS_DATA_EXIST)
2556 set_bit(FI_DATA_EXIST, &fi->flags);
2557 if (ri->i_inline & F2FS_INLINE_DOTS)
2558 set_bit(FI_INLINE_DOTS, &fi->flags);
2559 if (ri->i_inline & F2FS_EXTRA_ATTR)
2560 set_bit(FI_EXTRA_ATTR, &fi->flags);
2561 if (ri->i_inline & F2FS_PIN_FILE)
2562 set_bit(FI_PIN_FILE, &fi->flags);
2565 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2569 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2570 ri->i_inline |= F2FS_INLINE_XATTR;
2571 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2572 ri->i_inline |= F2FS_INLINE_DATA;
2573 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2574 ri->i_inline |= F2FS_INLINE_DENTRY;
2575 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2576 ri->i_inline |= F2FS_DATA_EXIST;
2577 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2578 ri->i_inline |= F2FS_INLINE_DOTS;
2579 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2580 ri->i_inline |= F2FS_EXTRA_ATTR;
2581 if (is_inode_flag_set(inode, FI_PIN_FILE))
2582 ri->i_inline |= F2FS_PIN_FILE;
2585 static inline int f2fs_has_extra_attr(struct inode *inode)
2587 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2590 static inline int f2fs_has_inline_xattr(struct inode *inode)
2592 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2595 static inline unsigned int addrs_per_inode(struct inode *inode)
2597 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
2598 get_inline_xattr_addrs(inode);
2599 return ALIGN_DOWN(addrs, 1);
2602 static inline unsigned int addrs_per_block(struct inode *inode)
2604 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, 1);
2607 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2609 struct f2fs_inode *ri = F2FS_INODE(page);
2611 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2612 get_inline_xattr_addrs(inode)]);
2615 static inline int inline_xattr_size(struct inode *inode)
2617 if (f2fs_has_inline_xattr(inode))
2618 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2622 static inline int f2fs_has_inline_data(struct inode *inode)
2624 return is_inode_flag_set(inode, FI_INLINE_DATA);
2627 static inline int f2fs_exist_data(struct inode *inode)
2629 return is_inode_flag_set(inode, FI_DATA_EXIST);
2632 static inline int f2fs_has_inline_dots(struct inode *inode)
2634 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2637 static inline bool f2fs_is_pinned_file(struct inode *inode)
2639 return is_inode_flag_set(inode, FI_PIN_FILE);
2642 static inline bool f2fs_is_atomic_file(struct inode *inode)
2644 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2647 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2649 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2652 static inline bool f2fs_is_volatile_file(struct inode *inode)
2654 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2657 static inline bool f2fs_is_first_block_written(struct inode *inode)
2659 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2662 static inline bool f2fs_is_drop_cache(struct inode *inode)
2664 return is_inode_flag_set(inode, FI_DROP_CACHE);
2667 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2669 struct f2fs_inode *ri = F2FS_INODE(page);
2670 int extra_size = get_extra_isize(inode);
2672 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2675 static inline int f2fs_has_inline_dentry(struct inode *inode)
2677 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2680 static inline int is_file(struct inode *inode, int type)
2682 return F2FS_I(inode)->i_advise & type;
2685 static inline void set_file(struct inode *inode, int type)
2687 F2FS_I(inode)->i_advise |= type;
2688 f2fs_mark_inode_dirty_sync(inode, true);
2691 static inline void clear_file(struct inode *inode, int type)
2693 F2FS_I(inode)->i_advise &= ~type;
2694 f2fs_mark_inode_dirty_sync(inode, true);
2697 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2702 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2704 spin_lock(&sbi->inode_lock[DIRTY_META]);
2705 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2706 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2709 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2710 file_keep_isize(inode) ||
2711 i_size_read(inode) & ~PAGE_MASK)
2714 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2716 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2718 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2720 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
2721 &F2FS_I(inode)->i_crtime))
2724 down_read(&F2FS_I(inode)->i_sem);
2725 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2726 up_read(&F2FS_I(inode)->i_sem);
2731 static inline bool f2fs_readonly(struct super_block *sb)
2733 return sb_rdonly(sb);
2736 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2738 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2741 static inline bool is_dot_dotdot(const struct qstr *str)
2743 if (str->len == 1 && str->name[0] == '.')
2746 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2752 static inline bool f2fs_may_extent_tree(struct inode *inode)
2754 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2756 if (!test_opt(sbi, EXTENT_CACHE) ||
2757 is_inode_flag_set(inode, FI_NO_EXTENT))
2761 * for recovered files during mount do not create extents
2762 * if shrinker is not registered.
2764 if (list_empty(&sbi->s_list))
2767 return S_ISREG(inode->i_mode);
2770 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2771 size_t size, gfp_t flags)
2775 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2776 f2fs_show_injection_info(FAULT_KMALLOC);
2780 ret = kmalloc(size, flags);
2784 return kvmalloc(size, flags);
2787 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2788 size_t size, gfp_t flags)
2790 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2793 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2794 size_t size, gfp_t flags)
2796 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2797 f2fs_show_injection_info(FAULT_KVMALLOC);
2801 return kvmalloc(size, flags);
2804 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2805 size_t size, gfp_t flags)
2807 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2810 static inline int get_extra_isize(struct inode *inode)
2812 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2815 static inline int get_inline_xattr_addrs(struct inode *inode)
2817 return F2FS_I(inode)->i_inline_xattr_size;
2820 #define f2fs_get_inode_mode(i) \
2821 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2822 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2824 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2825 (offsetof(struct f2fs_inode, i_extra_end) - \
2826 offsetof(struct f2fs_inode, i_extra_isize)) \
2828 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2829 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2830 ((offsetof(typeof(*(f2fs_inode)), field) + \
2831 sizeof((f2fs_inode)->field)) \
2832 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
2834 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2838 spin_lock(&sbi->iostat_lock);
2839 for (i = 0; i < NR_IO_TYPE; i++)
2840 sbi->write_iostat[i] = 0;
2841 spin_unlock(&sbi->iostat_lock);
2844 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2845 enum iostat_type type, unsigned long long io_bytes)
2847 if (!sbi->iostat_enable)
2849 spin_lock(&sbi->iostat_lock);
2850 sbi->write_iostat[type] += io_bytes;
2852 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2853 sbi->write_iostat[APP_BUFFERED_IO] =
2854 sbi->write_iostat[APP_WRITE_IO] -
2855 sbi->write_iostat[APP_DIRECT_IO];
2856 spin_unlock(&sbi->iostat_lock);
2859 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
2861 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
2863 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2864 block_t blkaddr, int type);
2865 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
2866 block_t blkaddr, int type)
2868 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
2869 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
2871 f2fs_bug_on(sbi, 1);
2875 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
2877 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
2882 static inline void f2fs_set_page_private(struct page *page,
2885 if (PagePrivate(page))
2889 SetPagePrivate(page);
2890 set_page_private(page, data);
2893 static inline void f2fs_clear_page_private(struct page *page)
2895 if (!PagePrivate(page))
2898 set_page_private(page, 0);
2899 ClearPagePrivate(page);
2900 f2fs_put_page(page, 0);
2906 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2907 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
2908 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
2909 int f2fs_truncate(struct inode *inode);
2910 int f2fs_getattr(const struct path *path, struct kstat *stat,
2911 u32 request_mask, unsigned int flags);
2912 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2913 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2914 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2915 int f2fs_precache_extents(struct inode *inode);
2916 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2917 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2918 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
2919 int f2fs_pin_file_control(struct inode *inode, bool inc);
2924 void f2fs_set_inode_flags(struct inode *inode);
2925 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2926 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2927 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2928 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2929 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2930 void f2fs_update_inode(struct inode *inode, struct page *node_page);
2931 void f2fs_update_inode_page(struct inode *inode);
2932 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2933 void f2fs_evict_inode(struct inode *inode);
2934 void f2fs_handle_failed_inode(struct inode *inode);
2939 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
2940 bool hot, bool set);
2941 struct dentry *f2fs_get_parent(struct dentry *child);
2943 extern int f2fs_ci_compare(const struct inode *parent,
2944 const struct qstr *name,
2945 const struct qstr *entry,
2951 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
2952 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
2953 f2fs_hash_t namehash, int *max_slots,
2954 struct f2fs_dentry_ptr *d);
2955 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2956 unsigned int start_pos, struct fscrypt_str *fstr);
2957 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
2958 struct f2fs_dentry_ptr *d);
2959 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
2960 const struct qstr *new_name,
2961 const struct qstr *orig_name, struct page *dpage);
2962 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
2963 unsigned int current_depth);
2964 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
2965 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2966 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2967 struct fscrypt_name *fname, struct page **res_page);
2968 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2969 const struct qstr *child, struct page **res_page);
2970 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2971 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2972 struct page **page);
2973 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2974 struct page *page, struct inode *inode);
2975 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2976 const struct qstr *name, f2fs_hash_t name_hash,
2977 unsigned int bit_pos);
2978 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2979 const struct qstr *orig_name,
2980 struct inode *inode, nid_t ino, umode_t mode);
2981 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
2982 struct inode *inode, nid_t ino, umode_t mode);
2983 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
2984 struct inode *inode, nid_t ino, umode_t mode);
2985 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2986 struct inode *dir, struct inode *inode);
2987 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2988 bool f2fs_empty_dir(struct inode *dir);
2990 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2992 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2993 inode, inode->i_ino, inode->i_mode);
2999 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3000 void f2fs_inode_synced(struct inode *inode);
3001 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3002 int f2fs_quota_sync(struct super_block *sb, int type);
3003 void f2fs_quota_off_umount(struct super_block *sb);
3004 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3005 int f2fs_sync_fs(struct super_block *sb, int sync);
3006 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3011 f2fs_hash_t f2fs_dentry_hash(const struct inode *dir,
3012 const struct qstr *name_info, struct fscrypt_name *fname);
3017 struct dnode_of_data;
3020 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3021 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3022 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3023 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3024 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3025 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3026 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3027 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3028 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3029 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3030 struct node_info *ni);
3031 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3032 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3033 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3034 int f2fs_truncate_xattr_node(struct inode *inode);
3035 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3036 unsigned int seq_id);
3037 int f2fs_remove_inode_page(struct inode *inode);
3038 struct page *f2fs_new_inode_page(struct inode *inode);
3039 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3040 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3041 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3042 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3043 int f2fs_move_node_page(struct page *node_page, int gc_type);
3044 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3045 struct writeback_control *wbc, bool atomic,
3046 unsigned int *seq_id);
3047 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3048 struct writeback_control *wbc,
3049 bool do_balance, enum iostat_type io_type);
3050 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3051 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3052 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3053 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3054 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3055 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3056 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3057 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3058 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3059 unsigned int segno, struct f2fs_summary_block *sum);
3060 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3061 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3062 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3063 int __init f2fs_create_node_manager_caches(void);
3064 void f2fs_destroy_node_manager_caches(void);
3069 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3070 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3071 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3072 void f2fs_drop_inmem_pages(struct inode *inode);
3073 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3074 int f2fs_commit_inmem_pages(struct inode *inode);
3075 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3076 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
3077 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3078 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3079 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3080 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3081 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3082 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3083 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3084 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3085 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3086 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3087 struct cp_control *cpc);
3088 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3089 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3090 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3091 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3092 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3093 void allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3094 unsigned int start, unsigned int end);
3095 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3096 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3097 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3098 struct cp_control *cpc);
3099 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3100 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3102 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3103 enum iostat_type io_type);
3104 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3105 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3106 struct f2fs_io_info *fio);
3107 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3108 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3109 block_t old_blkaddr, block_t new_blkaddr,
3110 bool recover_curseg, bool recover_newaddr);
3111 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3112 block_t old_addr, block_t new_addr,
3113 unsigned char version, bool recover_curseg,
3114 bool recover_newaddr);
3115 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3116 block_t old_blkaddr, block_t *new_blkaddr,
3117 struct f2fs_summary *sum, int type,
3118 struct f2fs_io_info *fio, bool add_list);
3119 void f2fs_wait_on_page_writeback(struct page *page,
3120 enum page_type type, bool ordered, bool locked);
3121 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3122 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3124 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3125 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3126 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3127 unsigned int val, int alloc);
3128 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3129 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3130 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3131 int __init f2fs_create_segment_manager_caches(void);
3132 void f2fs_destroy_segment_manager_caches(void);
3133 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3134 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3135 enum page_type type, enum temp_type temp);
3140 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3141 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3142 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3143 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index);
3144 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3145 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3146 block_t blkaddr, int type);
3147 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3148 int type, bool sync);
3149 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3150 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3151 long nr_to_write, enum iostat_type io_type);
3152 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3153 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3154 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3155 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3156 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3157 unsigned int devidx, int type);
3158 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3159 unsigned int devidx, int type);
3160 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3161 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3162 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3163 void f2fs_add_orphan_inode(struct inode *inode);
3164 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3165 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3166 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3167 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3168 void f2fs_remove_dirty_inode(struct inode *inode);
3169 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3170 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
3171 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3172 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3173 int __init f2fs_create_checkpoint_caches(void);
3174 void f2fs_destroy_checkpoint_caches(void);
3179 int f2fs_init_post_read_processing(void);
3180 void f2fs_destroy_post_read_processing(void);
3181 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3182 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3183 struct inode *inode, struct page *page,
3184 nid_t ino, enum page_type type);
3185 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3186 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3187 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3188 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3189 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3190 block_t blk_addr, struct bio *bio);
3191 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3192 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3193 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3194 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3195 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3196 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3197 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3198 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3199 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3200 int op_flags, bool for_write);
3201 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3202 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3204 struct page *f2fs_get_new_data_page(struct inode *inode,
3205 struct page *ipage, pgoff_t index, bool new_i_size);
3206 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3207 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3208 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3209 int create, int flag);
3210 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3211 u64 start, u64 len);
3212 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3213 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3214 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3215 unsigned int length);
3216 int f2fs_release_page(struct page *page, gfp_t wait);
3217 #ifdef CONFIG_MIGRATION
3218 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3219 struct page *page, enum migrate_mode mode);
3221 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3222 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3227 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3228 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3229 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3230 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3231 unsigned int segno);
3232 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3233 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3238 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3239 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3244 #ifdef CONFIG_F2FS_STAT_FS
3245 struct f2fs_stat_info {
3246 struct list_head stat_list;
3247 struct f2fs_sb_info *sbi;
3248 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3249 int main_area_segs, main_area_sections, main_area_zones;
3250 unsigned long long hit_largest, hit_cached, hit_rbtree;
3251 unsigned long long hit_total, total_ext;
3252 int ext_tree, zombie_tree, ext_node;
3253 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3254 int ndirty_data, ndirty_qdata;
3256 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3257 int nats, dirty_nats, sits, dirty_sits;
3258 int free_nids, avail_nids, alloc_nids;
3259 int total_count, utilization;
3260 int bg_gc, nr_wb_cp_data, nr_wb_data;
3261 int nr_rd_data, nr_rd_node, nr_rd_meta;
3262 int nr_dio_read, nr_dio_write;
3263 unsigned int io_skip_bggc, other_skip_bggc;
3264 int nr_flushing, nr_flushed, flush_list_empty;
3265 int nr_discarding, nr_discarded;
3267 unsigned int undiscard_blks;
3268 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3269 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3270 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3271 unsigned int bimodal, avg_vblocks;
3272 int util_free, util_valid, util_invalid;
3273 int rsvd_segs, overp_segs;
3274 int dirty_count, node_pages, meta_pages;
3275 int prefree_count, call_count, cp_count, bg_cp_count;
3276 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3277 int bg_node_segs, bg_data_segs;
3278 int tot_blks, data_blks, node_blks;
3279 int bg_data_blks, bg_node_blks;
3280 unsigned long long skipped_atomic_files[2];
3281 int curseg[NR_CURSEG_TYPE];
3282 int cursec[NR_CURSEG_TYPE];
3283 int curzone[NR_CURSEG_TYPE];
3285 unsigned int meta_count[META_MAX];
3286 unsigned int segment_count[2];
3287 unsigned int block_count[2];
3288 unsigned int inplace_count;
3289 unsigned long long base_mem, cache_mem, page_mem;
3292 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3294 return (struct f2fs_stat_info *)sbi->stat_info;
3297 #define stat_inc_cp_count(si) ((si)->cp_count++)
3298 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3299 #define stat_inc_call_count(si) ((si)->call_count++)
3300 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
3301 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3302 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3303 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3304 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3305 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3306 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3307 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3308 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3309 #define stat_inc_inline_xattr(inode) \
3311 if (f2fs_has_inline_xattr(inode)) \
3312 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3314 #define stat_dec_inline_xattr(inode) \
3316 if (f2fs_has_inline_xattr(inode)) \
3317 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3319 #define stat_inc_inline_inode(inode) \
3321 if (f2fs_has_inline_data(inode)) \
3322 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3324 #define stat_dec_inline_inode(inode) \
3326 if (f2fs_has_inline_data(inode)) \
3327 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3329 #define stat_inc_inline_dir(inode) \
3331 if (f2fs_has_inline_dentry(inode)) \
3332 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3334 #define stat_dec_inline_dir(inode) \
3336 if (f2fs_has_inline_dentry(inode)) \
3337 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3339 #define stat_inc_meta_count(sbi, blkaddr) \
3341 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3342 atomic_inc(&(sbi)->meta_count[META_CP]); \
3343 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3344 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3345 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3346 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3347 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3348 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3350 #define stat_inc_seg_type(sbi, curseg) \
3351 ((sbi)->segment_count[(curseg)->alloc_type]++)
3352 #define stat_inc_block_count(sbi, curseg) \
3353 ((sbi)->block_count[(curseg)->alloc_type]++)
3354 #define stat_inc_inplace_blocks(sbi) \
3355 (atomic_inc(&(sbi)->inplace_count))
3356 #define stat_inc_atomic_write(inode) \
3357 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3358 #define stat_dec_atomic_write(inode) \
3359 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3360 #define stat_update_max_atomic_write(inode) \
3362 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3363 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3365 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3367 #define stat_inc_volatile_write(inode) \
3368 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3369 #define stat_dec_volatile_write(inode) \
3370 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3371 #define stat_update_max_volatile_write(inode) \
3373 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3374 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3376 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3378 #define stat_inc_seg_count(sbi, type, gc_type) \
3380 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3382 if ((type) == SUM_TYPE_DATA) { \
3384 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3387 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3391 #define stat_inc_tot_blk_count(si, blks) \
3392 ((si)->tot_blks += (blks))
3394 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3396 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3397 stat_inc_tot_blk_count(si, blks); \
3398 si->data_blks += (blks); \
3399 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3402 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3404 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3405 stat_inc_tot_blk_count(si, blks); \
3406 si->node_blks += (blks); \
3407 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3410 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3411 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3412 void __init f2fs_create_root_stats(void);
3413 void f2fs_destroy_root_stats(void);
3415 #define stat_inc_cp_count(si) do { } while (0)
3416 #define stat_inc_bg_cp_count(si) do { } while (0)
3417 #define stat_inc_call_count(si) do { } while (0)
3418 #define stat_inc_bggc_count(si) do { } while (0)
3419 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3420 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3421 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3422 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3423 #define stat_inc_total_hit(sb) do { } while (0)
3424 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3425 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3426 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3427 #define stat_inc_inline_xattr(inode) do { } while (0)
3428 #define stat_dec_inline_xattr(inode) do { } while (0)
3429 #define stat_inc_inline_inode(inode) do { } while (0)
3430 #define stat_dec_inline_inode(inode) do { } while (0)
3431 #define stat_inc_inline_dir(inode) do { } while (0)
3432 #define stat_dec_inline_dir(inode) do { } while (0)
3433 #define stat_inc_atomic_write(inode) do { } while (0)
3434 #define stat_dec_atomic_write(inode) do { } while (0)
3435 #define stat_update_max_atomic_write(inode) do { } while (0)
3436 #define stat_inc_volatile_write(inode) do { } while (0)
3437 #define stat_dec_volatile_write(inode) do { } while (0)
3438 #define stat_update_max_volatile_write(inode) do { } while (0)
3439 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3440 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3441 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3442 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3443 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3444 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3445 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3446 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3448 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3449 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3450 static inline void __init f2fs_create_root_stats(void) { }
3451 static inline void f2fs_destroy_root_stats(void) { }
3454 extern const struct file_operations f2fs_dir_operations;
3455 #ifdef CONFIG_UNICODE
3456 extern const struct dentry_operations f2fs_dentry_ops;
3458 extern const struct file_operations f2fs_file_operations;
3459 extern const struct inode_operations f2fs_file_inode_operations;
3460 extern const struct address_space_operations f2fs_dblock_aops;
3461 extern const struct address_space_operations f2fs_node_aops;
3462 extern const struct address_space_operations f2fs_meta_aops;
3463 extern const struct inode_operations f2fs_dir_inode_operations;
3464 extern const struct inode_operations f2fs_symlink_inode_operations;
3465 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3466 extern const struct inode_operations f2fs_special_inode_operations;
3467 extern struct kmem_cache *f2fs_inode_entry_slab;
3472 bool f2fs_may_inline_data(struct inode *inode);
3473 bool f2fs_may_inline_dentry(struct inode *inode);
3474 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3475 void f2fs_truncate_inline_inode(struct inode *inode,
3476 struct page *ipage, u64 from);
3477 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3478 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3479 int f2fs_convert_inline_inode(struct inode *inode);
3480 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3481 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3482 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3483 struct fscrypt_name *fname, struct page **res_page);
3484 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3485 struct page *ipage);
3486 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3487 const struct qstr *orig_name,
3488 struct inode *inode, nid_t ino, umode_t mode);
3489 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3490 struct page *page, struct inode *dir,
3491 struct inode *inode);
3492 bool f2fs_empty_inline_dir(struct inode *dir);
3493 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3494 struct fscrypt_str *fstr);
3495 int f2fs_inline_data_fiemap(struct inode *inode,
3496 struct fiemap_extent_info *fieinfo,
3497 __u64 start, __u64 len);
3502 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3503 struct shrink_control *sc);
3504 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3505 struct shrink_control *sc);
3506 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3507 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3512 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
3513 struct rb_entry *cached_re, unsigned int ofs);
3514 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3515 struct rb_root_cached *root,
3516 struct rb_node **parent,
3517 unsigned int ofs, bool *leftmost);
3518 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
3519 struct rb_entry *cached_re, unsigned int ofs,
3520 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3521 struct rb_node ***insert_p, struct rb_node **insert_parent,
3522 bool force, bool *leftmost);
3523 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3524 struct rb_root_cached *root);
3525 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3526 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3527 void f2fs_drop_extent_tree(struct inode *inode);
3528 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3529 void f2fs_destroy_extent_tree(struct inode *inode);
3530 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3531 struct extent_info *ei);
3532 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3533 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3534 pgoff_t fofs, block_t blkaddr, unsigned int len);
3535 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3536 int __init f2fs_create_extent_cache(void);
3537 void f2fs_destroy_extent_cache(void);
3542 int __init f2fs_init_sysfs(void);
3543 void f2fs_exit_sysfs(void);
3544 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3545 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3550 static inline bool f2fs_encrypted_file(struct inode *inode)
3552 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
3555 static inline void f2fs_set_encrypted_inode(struct inode *inode)
3557 #ifdef CONFIG_FS_ENCRYPTION
3558 file_set_encrypt(inode);
3559 f2fs_set_inode_flags(inode);
3564 * Returns true if the reads of the inode's data need to undergo some
3565 * postprocessing step, like decryption or authenticity verification.
3567 static inline bool f2fs_post_read_required(struct inode *inode)
3569 return f2fs_encrypted_file(inode);
3572 #define F2FS_FEATURE_FUNCS(name, flagname) \
3573 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
3575 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
3578 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3579 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3580 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3581 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3582 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3583 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3584 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3585 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3586 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3587 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
3588 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
3590 #ifdef CONFIG_BLK_DEV_ZONED
3591 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
3594 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3596 return test_bit(zno, FDEV(devi).blkz_seq);
3600 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
3602 return f2fs_sb_has_blkzoned(sbi);
3605 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
3607 return blk_queue_discard(bdev_get_queue(bdev)) ||
3608 bdev_is_zoned(bdev);
3611 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
3615 if (!f2fs_is_multi_device(sbi))
3616 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
3618 for (i = 0; i < sbi->s_ndevs; i++)
3619 if (f2fs_bdev_support_discard(FDEV(i).bdev))
3624 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
3626 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
3627 f2fs_hw_should_discard(sbi);
3630 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
3634 if (!f2fs_is_multi_device(sbi))
3635 return bdev_read_only(sbi->sb->s_bdev);
3637 for (i = 0; i < sbi->s_ndevs; i++)
3638 if (bdev_read_only(FDEV(i).bdev))
3644 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3646 clear_opt(sbi, ADAPTIVE);
3647 clear_opt(sbi, LFS);
3650 case F2FS_MOUNT_ADAPTIVE:
3651 set_opt(sbi, ADAPTIVE);
3653 case F2FS_MOUNT_LFS:
3659 static inline bool f2fs_may_encrypt(struct inode *inode)
3661 #ifdef CONFIG_FS_ENCRYPTION
3662 umode_t mode = inode->i_mode;
3664 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3670 static inline int block_unaligned_IO(struct inode *inode,
3671 struct kiocb *iocb, struct iov_iter *iter)
3673 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
3674 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
3675 loff_t offset = iocb->ki_pos;
3676 unsigned long align = offset | iov_iter_alignment(iter);
3678 return align & blocksize_mask;
3681 static inline int allow_outplace_dio(struct inode *inode,
3682 struct kiocb *iocb, struct iov_iter *iter)
3684 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3685 int rw = iov_iter_rw(iter);
3687 return (test_opt(sbi, LFS) && (rw == WRITE) &&
3688 !block_unaligned_IO(inode, iocb, iter));
3691 static inline bool f2fs_force_buffered_io(struct inode *inode,
3692 struct kiocb *iocb, struct iov_iter *iter)
3694 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3695 int rw = iov_iter_rw(iter);
3697 if (f2fs_post_read_required(inode))
3699 if (f2fs_is_multi_device(sbi))
3702 * for blkzoned device, fallback direct IO to buffered IO, so
3703 * all IOs can be serialized by log-structured write.
3705 if (f2fs_sb_has_blkzoned(sbi))
3707 if (test_opt(sbi, LFS) && (rw == WRITE) &&
3708 block_unaligned_IO(inode, iocb, iter))
3710 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) &&
3711 !IS_SWAPFILE(inode))
3717 #ifdef CONFIG_F2FS_FAULT_INJECTION
3718 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
3721 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
3724 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
3727 if (f2fs_sb_has_quota_ino(sbi))
3729 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
3730 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
3731 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
3737 #define EFSBADCRC EBADMSG /* Bad CRC detected */
3738 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
3740 #endif /* _LINUX_F2FS_H */