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 #define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION)
28 #include <linux/fscrypt.h>
30 #ifdef CONFIG_F2FS_CHECK_FS
31 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
33 #define f2fs_bug_on(sbi, condition) \
35 if (unlikely(condition)) { \
37 set_sbi_flag(sbi, SBI_NEED_FSCK); \
61 #ifdef CONFIG_F2FS_FAULT_INJECTION
62 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
64 struct f2fs_fault_info {
66 unsigned int inject_rate;
67 unsigned int inject_type;
70 extern char *f2fs_fault_name[FAULT_MAX];
71 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
77 #define F2FS_MOUNT_BG_GC 0x00000001
78 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
79 #define F2FS_MOUNT_DISCARD 0x00000004
80 #define F2FS_MOUNT_NOHEAP 0x00000008
81 #define F2FS_MOUNT_XATTR_USER 0x00000010
82 #define F2FS_MOUNT_POSIX_ACL 0x00000020
83 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
84 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
85 #define F2FS_MOUNT_INLINE_DATA 0x00000100
86 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
87 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
88 #define F2FS_MOUNT_NOBARRIER 0x00000800
89 #define F2FS_MOUNT_FASTBOOT 0x00001000
90 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
91 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
92 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
93 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
94 #define F2FS_MOUNT_ADAPTIVE 0x00020000
95 #define F2FS_MOUNT_LFS 0x00040000
96 #define F2FS_MOUNT_USRQUOTA 0x00080000
97 #define F2FS_MOUNT_GRPQUOTA 0x00100000
98 #define F2FS_MOUNT_PRJQUOTA 0x00200000
99 #define F2FS_MOUNT_QUOTA 0x00400000
100 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
101 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
102 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
104 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
105 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
106 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
107 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
109 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
110 typecheck(unsigned long long, b) && \
111 ((long long)((a) - (b)) > 0))
113 typedef u32 block_t; /*
114 * should not change u32, since it is the on-disk block
115 * address format, __le32.
119 struct f2fs_mount_info {
121 int write_io_size_bits; /* Write IO size bits */
122 block_t root_reserved_blocks; /* root reserved blocks */
123 kuid_t s_resuid; /* reserved blocks for uid */
124 kgid_t s_resgid; /* reserved blocks for gid */
125 int active_logs; /* # of active logs */
126 int inline_xattr_size; /* inline xattr size */
127 #ifdef CONFIG_F2FS_FAULT_INJECTION
128 struct f2fs_fault_info fault_info; /* For fault injection */
131 /* Names of quota files with journalled quota */
132 char *s_qf_names[MAXQUOTAS];
133 int s_jquota_fmt; /* Format of quota to use */
135 /* For which write hints are passed down to block layer */
137 int alloc_mode; /* segment allocation policy */
138 int fsync_mode; /* fsync policy */
139 bool test_dummy_encryption; /* test dummy encryption */
142 #define F2FS_FEATURE_ENCRYPT 0x0001
143 #define F2FS_FEATURE_BLKZONED 0x0002
144 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
145 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
146 #define F2FS_FEATURE_PRJQUOTA 0x0010
147 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
148 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
149 #define F2FS_FEATURE_QUOTA_INO 0x0080
150 #define F2FS_FEATURE_INODE_CRTIME 0x0100
151 #define F2FS_FEATURE_LOST_FOUND 0x0200
152 #define F2FS_FEATURE_VERITY 0x0400 /* reserved */
153 #define F2FS_FEATURE_SB_CHKSUM 0x0800
155 #define F2FS_HAS_FEATURE(sb, mask) \
156 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
157 #define F2FS_SET_FEATURE(sb, mask) \
158 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
159 #define F2FS_CLEAR_FEATURE(sb, mask) \
160 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
163 * Default values for user and/or group using reserved blocks
165 #define F2FS_DEF_RESUID 0
166 #define F2FS_DEF_RESGID 0
169 * For checkpoint manager
176 #define CP_UMOUNT 0x00000001
177 #define CP_FASTBOOT 0x00000002
178 #define CP_SYNC 0x00000004
179 #define CP_RECOVERY 0x00000008
180 #define CP_DISCARD 0x00000010
181 #define CP_TRIMMED 0x00000020
182 #define CP_PAUSE 0x00000040
184 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
185 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
186 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
187 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
188 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
189 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
190 #define DEF_CP_INTERVAL 60 /* 60 secs */
191 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
192 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
202 * indicate meta/data type
215 /* for the list of ino */
217 ORPHAN_INO, /* for orphan ino list */
218 APPEND_INO, /* for append ino list */
219 UPDATE_INO, /* for update ino list */
220 TRANS_DIR_INO, /* for trasactions dir ino list */
221 FLUSH_INO, /* for multiple device flushing */
222 MAX_INO_ENTRY, /* max. list */
226 struct list_head list; /* list head */
227 nid_t ino; /* inode number */
228 unsigned int dirty_device; /* dirty device bitmap */
231 /* for the list of inodes to be GCed */
233 struct list_head list; /* list head */
234 struct inode *inode; /* vfs inode pointer */
237 struct fsync_node_entry {
238 struct list_head list; /* list head */
239 struct page *page; /* warm node page pointer */
240 unsigned int seq_id; /* sequence id */
243 /* for the bitmap indicate blocks to be discarded */
244 struct discard_entry {
245 struct list_head list; /* list head */
246 block_t start_blkaddr; /* start blockaddr of current segment */
247 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
250 /* default discard granularity of inner discard thread, unit: block count */
251 #define DEFAULT_DISCARD_GRANULARITY 16
253 /* max discard pend list number */
254 #define MAX_PLIST_NUM 512
255 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
256 (MAX_PLIST_NUM - 1) : (blk_num - 1))
259 D_PREP, /* initial */
260 D_PARTIAL, /* partially submitted */
261 D_SUBMIT, /* all submitted */
262 D_DONE, /* finished */
265 struct discard_info {
266 block_t lstart; /* logical start address */
267 block_t len; /* length */
268 block_t start; /* actual start address in dev */
272 struct rb_node rb_node; /* rb node located in rb-tree */
275 block_t lstart; /* logical start address */
276 block_t len; /* length */
277 block_t start; /* actual start address in dev */
279 struct discard_info di; /* discard info */
282 struct list_head list; /* command list */
283 struct completion wait; /* compleation */
284 struct block_device *bdev; /* bdev */
285 unsigned short ref; /* reference count */
286 unsigned char state; /* state */
287 unsigned char issuing; /* issuing discard */
288 int error; /* bio error */
289 spinlock_t lock; /* for state/bio_ref updating */
290 unsigned short bio_ref; /* bio reference count */
301 struct discard_policy {
302 int type; /* type of discard */
303 unsigned int min_interval; /* used for candidates exist */
304 unsigned int mid_interval; /* used for device busy */
305 unsigned int max_interval; /* used for candidates not exist */
306 unsigned int max_requests; /* # of discards issued per round */
307 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
308 bool io_aware; /* issue discard in idle time */
309 bool sync; /* submit discard with REQ_SYNC flag */
310 bool ordered; /* issue discard by lba order */
311 unsigned int granularity; /* discard granularity */
314 struct discard_cmd_control {
315 struct task_struct *f2fs_issue_discard; /* discard thread */
316 struct list_head entry_list; /* 4KB discard entry list */
317 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
318 struct list_head wait_list; /* store on-flushing entries */
319 struct list_head fstrim_list; /* in-flight discard from fstrim */
320 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
321 unsigned int discard_wake; /* to wake up discard thread */
322 struct mutex cmd_lock;
323 unsigned int nr_discards; /* # of discards in the list */
324 unsigned int max_discards; /* max. discards to be issued */
325 unsigned int discard_granularity; /* discard granularity */
326 unsigned int undiscard_blks; /* # of undiscard blocks */
327 unsigned int next_pos; /* next discard position */
328 atomic_t issued_discard; /* # of issued discard */
329 atomic_t issing_discard; /* # of issing discard */
330 atomic_t discard_cmd_cnt; /* # of cached cmd count */
331 struct rb_root_cached root; /* root of discard rb-tree */
332 bool rbtree_check; /* config for consistence check */
335 /* for the list of fsync inodes, used only during recovery */
336 struct fsync_inode_entry {
337 struct list_head list; /* list head */
338 struct inode *inode; /* vfs inode pointer */
339 block_t blkaddr; /* block address locating the last fsync */
340 block_t last_dentry; /* block address locating the last dentry */
343 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
344 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
346 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
347 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
348 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
349 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
351 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
352 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
354 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
356 int before = nats_in_cursum(journal);
358 journal->n_nats = cpu_to_le16(before + i);
362 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
364 int before = sits_in_cursum(journal);
366 journal->n_sits = cpu_to_le16(before + i);
370 static inline bool __has_cursum_space(struct f2fs_journal *journal,
373 if (type == NAT_JOURNAL)
374 return size <= MAX_NAT_JENTRIES(journal);
375 return size <= MAX_SIT_JENTRIES(journal);
381 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
382 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
383 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
385 #define F2FS_IOCTL_MAGIC 0xf5
386 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
387 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
388 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
389 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
390 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
391 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
392 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
393 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
394 struct f2fs_defragment)
395 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
396 struct f2fs_move_range)
397 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
398 struct f2fs_flush_device)
399 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
400 struct f2fs_gc_range)
401 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
402 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
403 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
404 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
406 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
407 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
408 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
411 * should be same as XFS_IOC_GOINGDOWN.
412 * Flags for going down operation used by FS_IOC_GOINGDOWN
414 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
415 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
416 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
417 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
418 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
420 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
422 * ioctl commands in 32 bit emulation
424 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
425 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
426 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
429 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
430 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
432 struct f2fs_gc_range {
438 struct f2fs_defragment {
443 struct f2fs_move_range {
444 u32 dst_fd; /* destination fd */
445 u64 pos_in; /* start position in src_fd */
446 u64 pos_out; /* start position in dst_fd */
447 u64 len; /* size to move */
450 struct f2fs_flush_device {
451 u32 dev_num; /* device number to flush */
452 u32 segments; /* # of segments to flush */
455 /* for inline stuff */
456 #define DEF_INLINE_RESERVED_SIZE 1
457 #define DEF_MIN_INLINE_SIZE 1
458 static inline int get_extra_isize(struct inode *inode);
459 static inline int get_inline_xattr_addrs(struct inode *inode);
460 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
461 (CUR_ADDRS_PER_INODE(inode) - \
462 get_inline_xattr_addrs(inode) - \
463 DEF_INLINE_RESERVED_SIZE))
466 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
467 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
469 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
470 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
471 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
472 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
473 NR_INLINE_DENTRY(inode) + \
474 INLINE_DENTRY_BITMAP_SIZE(inode)))
477 * For INODE and NODE manager
479 /* for directory operations */
480 struct f2fs_dentry_ptr {
483 struct f2fs_dir_entry *dentry;
484 __u8 (*filename)[F2FS_SLOT_LEN];
489 static inline void make_dentry_ptr_block(struct inode *inode,
490 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
493 d->max = NR_DENTRY_IN_BLOCK;
494 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
495 d->bitmap = t->dentry_bitmap;
496 d->dentry = t->dentry;
497 d->filename = t->filename;
500 static inline void make_dentry_ptr_inline(struct inode *inode,
501 struct f2fs_dentry_ptr *d, void *t)
503 int entry_cnt = NR_INLINE_DENTRY(inode);
504 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
505 int reserved_size = INLINE_RESERVED_SIZE(inode);
509 d->nr_bitmap = bitmap_size;
511 d->dentry = t + bitmap_size + reserved_size;
512 d->filename = t + bitmap_size + reserved_size +
513 SIZE_OF_DIR_ENTRY * entry_cnt;
517 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
518 * as its node offset to distinguish from index node blocks.
519 * But some bits are used to mark the node block.
521 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
524 ALLOC_NODE, /* allocate a new node page if needed */
525 LOOKUP_NODE, /* look up a node without readahead */
527 * look up a node with readahead called
532 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
534 /* maximum retry quota flush count */
535 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
537 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
539 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
541 /* for in-memory extent cache entry */
542 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
544 /* number of extent info in extent cache we try to shrink */
545 #define EXTENT_CACHE_SHRINK_NUMBER 128
548 struct rb_node rb_node; /* rb node located in rb-tree */
549 unsigned int ofs; /* start offset of the entry */
550 unsigned int len; /* length of the entry */
554 unsigned int fofs; /* start offset in a file */
555 unsigned int len; /* length of the extent */
556 u32 blk; /* start block address of the extent */
560 struct rb_node rb_node;
567 struct extent_info ei; /* extent info */
570 struct list_head list; /* node in global extent list of sbi */
571 struct extent_tree *et; /* extent tree pointer */
575 nid_t ino; /* inode number */
576 struct rb_root_cached root; /* root of extent info rb-tree */
577 struct extent_node *cached_en; /* recently accessed extent node */
578 struct extent_info largest; /* largested extent info */
579 struct list_head list; /* to be used by sbi->zombie_list */
580 rwlock_t lock; /* protect extent info rb-tree */
581 atomic_t node_cnt; /* # of extent node in rb-tree*/
582 bool largest_updated; /* largest extent updated */
586 * This structure is taken from ext4_map_blocks.
588 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
590 #define F2FS_MAP_NEW (1 << BH_New)
591 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
592 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
593 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
596 struct f2fs_map_blocks {
600 unsigned int m_flags;
601 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
602 pgoff_t *m_next_extent; /* point to next possible extent */
606 /* for flag in get_data_block */
608 F2FS_GET_BLOCK_DEFAULT,
609 F2FS_GET_BLOCK_FIEMAP,
612 F2FS_GET_BLOCK_PRE_DIO,
613 F2FS_GET_BLOCK_PRE_AIO,
614 F2FS_GET_BLOCK_PRECACHE,
618 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
620 #define FADVISE_COLD_BIT 0x01
621 #define FADVISE_LOST_PINO_BIT 0x02
622 #define FADVISE_ENCRYPT_BIT 0x04
623 #define FADVISE_ENC_NAME_BIT 0x08
624 #define FADVISE_KEEP_SIZE_BIT 0x10
625 #define FADVISE_HOT_BIT 0x20
626 #define FADVISE_VERITY_BIT 0x40 /* reserved */
628 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
630 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
631 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
632 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
633 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
634 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
635 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
636 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
637 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
638 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
639 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
640 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
641 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
642 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
643 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
644 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
645 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
647 #define DEF_DIR_LEVEL 0
655 struct f2fs_inode_info {
656 struct inode vfs_inode; /* serve a vfs inode */
657 unsigned long i_flags; /* keep an inode flags for ioctl */
658 unsigned char i_advise; /* use to give file attribute hints */
659 unsigned char i_dir_level; /* use for dentry level for large dir */
660 unsigned int i_current_depth; /* only for directory depth */
661 /* for gc failure statistic */
662 unsigned int i_gc_failures[MAX_GC_FAILURE];
663 unsigned int i_pino; /* parent inode number */
664 umode_t i_acl_mode; /* keep file acl mode temporarily */
666 /* Use below internally in f2fs*/
667 unsigned long flags; /* use to pass per-file flags */
668 struct rw_semaphore i_sem; /* protect fi info */
669 atomic_t dirty_pages; /* # of dirty pages */
670 f2fs_hash_t chash; /* hash value of given file name */
671 unsigned int clevel; /* maximum level of given file name */
672 struct task_struct *task; /* lookup and create consistency */
673 struct task_struct *cp_task; /* separate cp/wb IO stats*/
674 nid_t i_xattr_nid; /* node id that contains xattrs */
675 loff_t last_disk_size; /* lastly written file size */
678 struct dquot *i_dquot[MAXQUOTAS];
680 /* quota space reservation, managed internally by quota code */
681 qsize_t i_reserved_quota;
683 struct list_head dirty_list; /* dirty list for dirs and files */
684 struct list_head gdirty_list; /* linked in global dirty list */
685 struct list_head inmem_ilist; /* list for inmem inodes */
686 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
687 struct task_struct *inmem_task; /* store inmemory task */
688 struct mutex inmem_lock; /* lock for inmemory pages */
689 struct extent_tree *extent_tree; /* cached extent_tree entry */
691 /* avoid racing between foreground op and gc */
692 struct rw_semaphore i_gc_rwsem[2];
693 struct rw_semaphore i_mmap_sem;
694 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
696 int i_extra_isize; /* size of extra space located in i_addr */
697 kprojid_t i_projid; /* id for project quota */
698 int i_inline_xattr_size; /* inline xattr size */
699 struct timespec64 i_crtime; /* inode creation time */
700 struct timespec64 i_disk_time[4];/* inode disk times */
703 static inline void get_extent_info(struct extent_info *ext,
704 struct f2fs_extent *i_ext)
706 ext->fofs = le32_to_cpu(i_ext->fofs);
707 ext->blk = le32_to_cpu(i_ext->blk);
708 ext->len = le32_to_cpu(i_ext->len);
711 static inline void set_raw_extent(struct extent_info *ext,
712 struct f2fs_extent *i_ext)
714 i_ext->fofs = cpu_to_le32(ext->fofs);
715 i_ext->blk = cpu_to_le32(ext->blk);
716 i_ext->len = cpu_to_le32(ext->len);
719 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
720 u32 blk, unsigned int len)
727 static inline bool __is_discard_mergeable(struct discard_info *back,
728 struct discard_info *front, unsigned int max_len)
730 return (back->lstart + back->len == front->lstart) &&
731 (back->len + front->len <= max_len);
734 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
735 struct discard_info *back, unsigned int max_len)
737 return __is_discard_mergeable(back, cur, max_len);
740 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
741 struct discard_info *front, unsigned int max_len)
743 return __is_discard_mergeable(cur, front, max_len);
746 static inline bool __is_extent_mergeable(struct extent_info *back,
747 struct extent_info *front)
749 return (back->fofs + back->len == front->fofs &&
750 back->blk + back->len == front->blk);
753 static inline bool __is_back_mergeable(struct extent_info *cur,
754 struct extent_info *back)
756 return __is_extent_mergeable(back, cur);
759 static inline bool __is_front_mergeable(struct extent_info *cur,
760 struct extent_info *front)
762 return __is_extent_mergeable(cur, front);
765 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
766 static inline void __try_update_largest_extent(struct extent_tree *et,
767 struct extent_node *en)
769 if (en->ei.len > et->largest.len) {
770 et->largest = en->ei;
771 et->largest_updated = true;
776 * For free nid management
779 FREE_NID, /* newly added to free nid list */
780 PREALLOC_NID, /* it is preallocated */
784 struct f2fs_nm_info {
785 block_t nat_blkaddr; /* base disk address of NAT */
786 nid_t max_nid; /* maximum possible node ids */
787 nid_t available_nids; /* # of available node ids */
788 nid_t next_scan_nid; /* the next nid to be scanned */
789 unsigned int ram_thresh; /* control the memory footprint */
790 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
791 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
793 /* NAT cache management */
794 struct radix_tree_root nat_root;/* root of the nat entry cache */
795 struct radix_tree_root nat_set_root;/* root of the nat set cache */
796 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
797 struct list_head nat_entries; /* cached nat entry list (clean) */
798 spinlock_t nat_list_lock; /* protect clean nat entry list */
799 unsigned int nat_cnt; /* the # of cached nat entries */
800 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
801 unsigned int nat_blocks; /* # of nat blocks */
803 /* free node ids management */
804 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
805 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
806 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
807 spinlock_t nid_list_lock; /* protect nid lists ops */
808 struct mutex build_lock; /* lock for build free nids */
809 unsigned char **free_nid_bitmap;
810 unsigned char *nat_block_bitmap;
811 unsigned short *free_nid_count; /* free nid count of NAT block */
814 char *nat_bitmap; /* NAT bitmap pointer */
816 unsigned int nat_bits_blocks; /* # of nat bits blocks */
817 unsigned char *nat_bits; /* NAT bits blocks */
818 unsigned char *full_nat_bits; /* full NAT pages */
819 unsigned char *empty_nat_bits; /* empty NAT pages */
820 #ifdef CONFIG_F2FS_CHECK_FS
821 char *nat_bitmap_mir; /* NAT bitmap mirror */
823 int bitmap_size; /* bitmap size */
827 * this structure is used as one of function parameters.
828 * all the information are dedicated to a given direct node block determined
829 * by the data offset in a file.
831 struct dnode_of_data {
832 struct inode *inode; /* vfs inode pointer */
833 struct page *inode_page; /* its inode page, NULL is possible */
834 struct page *node_page; /* cached direct node page */
835 nid_t nid; /* node id of the direct node block */
836 unsigned int ofs_in_node; /* data offset in the node page */
837 bool inode_page_locked; /* inode page is locked or not */
838 bool node_changed; /* is node block changed */
839 char cur_level; /* level of hole node page */
840 char max_level; /* level of current page located */
841 block_t data_blkaddr; /* block address of the node block */
844 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
845 struct page *ipage, struct page *npage, nid_t nid)
847 memset(dn, 0, sizeof(*dn));
849 dn->inode_page = ipage;
850 dn->node_page = npage;
857 * By default, there are 6 active log areas across the whole main area.
858 * When considering hot and cold data separation to reduce cleaning overhead,
859 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
861 * In the current design, you should not change the numbers intentionally.
862 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
863 * logs individually according to the underlying devices. (default: 6)
864 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
865 * data and 8 for node logs.
867 #define NR_CURSEG_DATA_TYPE (3)
868 #define NR_CURSEG_NODE_TYPE (3)
869 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
872 CURSEG_HOT_DATA = 0, /* directory entry blocks */
873 CURSEG_WARM_DATA, /* data blocks */
874 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
875 CURSEG_HOT_NODE, /* direct node blocks of directory files */
876 CURSEG_WARM_NODE, /* direct node blocks of normal files */
877 CURSEG_COLD_NODE, /* indirect node blocks */
882 struct completion wait;
883 struct llist_node llnode;
888 struct flush_cmd_control {
889 struct task_struct *f2fs_issue_flush; /* flush thread */
890 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
891 atomic_t issued_flush; /* # of issued flushes */
892 atomic_t issing_flush; /* # of issing flushes */
893 struct llist_head issue_list; /* list for command issue */
894 struct llist_node *dispatch_list; /* list for command dispatch */
897 struct f2fs_sm_info {
898 struct sit_info *sit_info; /* whole segment information */
899 struct free_segmap_info *free_info; /* free segment information */
900 struct dirty_seglist_info *dirty_info; /* dirty segment information */
901 struct curseg_info *curseg_array; /* active segment information */
903 struct rw_semaphore curseg_lock; /* for preventing curseg change */
905 block_t seg0_blkaddr; /* block address of 0'th segment */
906 block_t main_blkaddr; /* start block address of main area */
907 block_t ssa_blkaddr; /* start block address of SSA area */
909 unsigned int segment_count; /* total # of segments */
910 unsigned int main_segments; /* # of segments in main area */
911 unsigned int reserved_segments; /* # of reserved segments */
912 unsigned int ovp_segments; /* # of overprovision segments */
914 /* a threshold to reclaim prefree segments */
915 unsigned int rec_prefree_segments;
917 /* for batched trimming */
918 unsigned int trim_sections; /* # of sections to trim */
920 struct list_head sit_entry_set; /* sit entry set list */
922 unsigned int ipu_policy; /* in-place-update policy */
923 unsigned int min_ipu_util; /* in-place-update threshold */
924 unsigned int min_fsync_blocks; /* threshold for fsync */
925 unsigned int min_seq_blocks; /* threshold for sequential blocks */
926 unsigned int min_hot_blocks; /* threshold for hot block allocation */
927 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
929 /* for flush command control */
930 struct flush_cmd_control *fcc_info;
932 /* for discard command control */
933 struct discard_cmd_control *dcc_info;
940 * COUNT_TYPE for monitoring
942 * f2fs monitors the number of several block types such as on-writeback,
943 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
945 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
963 * The below are the page types of bios used in submit_bio().
964 * The available types are:
965 * DATA User data pages. It operates as async mode.
966 * NODE Node pages. It operates as async mode.
967 * META FS metadata pages such as SIT, NAT, CP.
968 * NR_PAGE_TYPE The number of page types.
969 * META_FLUSH Make sure the previous pages are written
970 * with waiting the bio's completion
971 * ... Only can be used with META.
973 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
980 INMEM, /* the below types are used by tracepoints only. */
989 HOT = 0, /* must be zero for meta bio */
995 enum need_lock_type {
1001 enum cp_reason_type {
1015 APP_DIRECT_IO, /* app direct IOs */
1016 APP_BUFFERED_IO, /* app buffered IOs */
1017 APP_WRITE_IO, /* app write IOs */
1018 APP_MAPPED_IO, /* app mapped IOs */
1019 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1020 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1021 FS_META_IO, /* meta IOs from kworker/reclaimer */
1022 FS_GC_DATA_IO, /* data IOs from forground gc */
1023 FS_GC_NODE_IO, /* node IOs from forground gc */
1024 FS_CP_DATA_IO, /* data IOs from checkpoint */
1025 FS_CP_NODE_IO, /* node IOs from checkpoint */
1026 FS_CP_META_IO, /* meta IOs from checkpoint */
1027 FS_DISCARD, /* discard */
1031 struct f2fs_io_info {
1032 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1033 nid_t ino; /* inode number */
1034 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1035 enum temp_type temp; /* contains HOT/WARM/COLD */
1036 int op; /* contains REQ_OP_ */
1037 int op_flags; /* req_flag_bits */
1038 block_t new_blkaddr; /* new block address to be written */
1039 block_t old_blkaddr; /* old block address before Cow */
1040 struct page *page; /* page to be written */
1041 struct page *encrypted_page; /* encrypted page */
1042 struct list_head list; /* serialize IOs */
1043 bool submitted; /* indicate IO submission */
1044 int need_lock; /* indicate we need to lock cp_rwsem */
1045 bool in_list; /* indicate fio is in io_list */
1046 bool is_meta; /* indicate borrow meta inode mapping or not */
1047 bool retry; /* need to reallocate block address */
1048 enum iostat_type io_type; /* io type */
1049 struct writeback_control *io_wbc; /* writeback control */
1050 unsigned char version; /* version of the node */
1053 #define is_read_io(rw) ((rw) == READ)
1054 struct f2fs_bio_info {
1055 struct f2fs_sb_info *sbi; /* f2fs superblock */
1056 struct bio *bio; /* bios to merge */
1057 sector_t last_block_in_bio; /* last block number */
1058 struct f2fs_io_info fio; /* store buffered io info. */
1059 struct rw_semaphore io_rwsem; /* blocking op for bio */
1060 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1061 struct list_head io_list; /* track fios */
1064 #define FDEV(i) (sbi->devs[i])
1065 #define RDEV(i) (raw_super->devs[i])
1066 struct f2fs_dev_info {
1067 struct block_device *bdev;
1068 char path[MAX_PATH_LEN];
1069 unsigned int total_segments;
1072 #ifdef CONFIG_BLK_DEV_ZONED
1073 unsigned int nr_blkz; /* Total number of zones */
1074 u8 *blkz_type; /* Array of zones type */
1079 DIR_INODE, /* for dirty dir inode */
1080 FILE_INODE, /* for dirty regular/symlink inode */
1081 DIRTY_META, /* for all dirtied inode metadata */
1082 ATOMIC_FILE, /* for all atomic files */
1086 /* for inner inode cache management */
1087 struct inode_management {
1088 struct radix_tree_root ino_root; /* ino entry array */
1089 spinlock_t ino_lock; /* for ino entry lock */
1090 struct list_head ino_list; /* inode list head */
1091 unsigned long ino_num; /* number of entries */
1094 /* For s_flag in struct f2fs_sb_info */
1096 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1097 SBI_IS_CLOSE, /* specify unmounting */
1098 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1099 SBI_POR_DOING, /* recovery is doing or not */
1100 SBI_NEED_SB_WRITE, /* need to recover superblock */
1101 SBI_NEED_CP, /* need to checkpoint */
1102 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1103 SBI_IS_RECOVERED, /* recovered orphan/data */
1104 SBI_CP_DISABLED, /* CP was disabled last mount */
1105 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1106 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1107 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1127 WHINT_MODE_OFF, /* not pass down write hints */
1128 WHINT_MODE_USER, /* try to pass down hints given by users */
1129 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1133 ALLOC_MODE_DEFAULT, /* stay default */
1134 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1138 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1139 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1140 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1143 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1144 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1145 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1147 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1150 struct f2fs_sb_info {
1151 struct super_block *sb; /* pointer to VFS super block */
1152 struct proc_dir_entry *s_proc; /* proc entry */
1153 struct f2fs_super_block *raw_super; /* raw super block pointer */
1154 struct rw_semaphore sb_lock; /* lock for raw super block */
1155 int valid_super_block; /* valid super block no */
1156 unsigned long s_flag; /* flags for sbi */
1157 struct mutex writepages; /* mutex for writepages() */
1159 #ifdef CONFIG_BLK_DEV_ZONED
1160 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1161 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1164 /* for node-related operations */
1165 struct f2fs_nm_info *nm_info; /* node manager */
1166 struct inode *node_inode; /* cache node blocks */
1168 /* for segment-related operations */
1169 struct f2fs_sm_info *sm_info; /* segment manager */
1171 /* for bio operations */
1172 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1173 struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
1174 /* bio ordering for NODE/DATA */
1175 /* keep migration IO order for LFS mode */
1176 struct rw_semaphore io_order_lock;
1177 mempool_t *write_io_dummy; /* Dummy pages */
1179 /* for checkpoint */
1180 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1181 int cur_cp_pack; /* remain current cp pack */
1182 spinlock_t cp_lock; /* for flag in ckpt */
1183 struct inode *meta_inode; /* cache meta blocks */
1184 struct mutex cp_mutex; /* checkpoint procedure lock */
1185 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1186 struct rw_semaphore node_write; /* locking node writes */
1187 struct rw_semaphore node_change; /* locking node change */
1188 wait_queue_head_t cp_wait;
1189 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1190 long interval_time[MAX_TIME]; /* to store thresholds */
1192 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1194 spinlock_t fsync_node_lock; /* for node entry lock */
1195 struct list_head fsync_node_list; /* node list head */
1196 unsigned int fsync_seg_id; /* sequence id */
1197 unsigned int fsync_node_num; /* number of node entries */
1199 /* for orphan inode, use 0'th array */
1200 unsigned int max_orphans; /* max orphan inodes */
1202 /* for inode management */
1203 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1204 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1206 /* for extent tree cache */
1207 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1208 struct mutex extent_tree_lock; /* locking extent radix tree */
1209 struct list_head extent_list; /* lru list for shrinker */
1210 spinlock_t extent_lock; /* locking extent lru list */
1211 atomic_t total_ext_tree; /* extent tree count */
1212 struct list_head zombie_list; /* extent zombie tree list */
1213 atomic_t total_zombie_tree; /* extent zombie tree count */
1214 atomic_t total_ext_node; /* extent info count */
1216 /* basic filesystem units */
1217 unsigned int log_sectors_per_block; /* log2 sectors per block */
1218 unsigned int log_blocksize; /* log2 block size */
1219 unsigned int blocksize; /* block size */
1220 unsigned int root_ino_num; /* root inode number*/
1221 unsigned int node_ino_num; /* node inode number*/
1222 unsigned int meta_ino_num; /* meta inode number*/
1223 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1224 unsigned int blocks_per_seg; /* blocks per segment */
1225 unsigned int segs_per_sec; /* segments per section */
1226 unsigned int secs_per_zone; /* sections per zone */
1227 unsigned int total_sections; /* total section count */
1228 unsigned int total_node_count; /* total node block count */
1229 unsigned int total_valid_node_count; /* valid node block count */
1230 loff_t max_file_blocks; /* max block index of file */
1231 int dir_level; /* directory level */
1232 int readdir_ra; /* readahead inode in readdir */
1234 block_t user_block_count; /* # of user blocks */
1235 block_t total_valid_block_count; /* # of valid blocks */
1236 block_t discard_blks; /* discard command candidats */
1237 block_t last_valid_block_count; /* for recovery */
1238 block_t reserved_blocks; /* configurable reserved blocks */
1239 block_t current_reserved_blocks; /* current reserved blocks */
1241 /* Additional tracking for no checkpoint mode */
1242 block_t unusable_block_count; /* # of blocks saved by last cp */
1244 unsigned int nquota_files; /* # of quota sysfile */
1246 u32 s_next_generation; /* for NFS support */
1248 /* # of pages, see count_type */
1249 atomic_t nr_pages[NR_COUNT_TYPE];
1250 /* # of allocated blocks */
1251 struct percpu_counter alloc_valid_block_count;
1253 /* writeback control */
1254 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1256 /* valid inode count */
1257 struct percpu_counter total_valid_inode_count;
1259 struct f2fs_mount_info mount_opt; /* mount options */
1261 /* for cleaning operations */
1262 struct mutex gc_mutex; /* mutex for GC */
1263 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1264 unsigned int cur_victim_sec; /* current victim section num */
1265 unsigned int gc_mode; /* current GC state */
1266 /* for skip statistic */
1267 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1268 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1270 /* threshold for gc trials on pinned files */
1271 u64 gc_pin_file_threshold;
1273 /* maximum # of trials to find a victim segment for SSR and GC */
1274 unsigned int max_victim_search;
1277 * for stat information.
1278 * one is for the LFS mode, and the other is for the SSR mode.
1280 #ifdef CONFIG_F2FS_STAT_FS
1281 struct f2fs_stat_info *stat_info; /* FS status information */
1282 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1283 unsigned int segment_count[2]; /* # of allocated segments */
1284 unsigned int block_count[2]; /* # of allocated blocks */
1285 atomic_t inplace_count; /* # of inplace update */
1286 atomic64_t total_hit_ext; /* # of lookup extent cache */
1287 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1288 atomic64_t read_hit_largest; /* # of hit largest extent node */
1289 atomic64_t read_hit_cached; /* # of hit cached extent node */
1290 atomic_t inline_xattr; /* # of inline_xattr inodes */
1291 atomic_t inline_inode; /* # of inline_data inodes */
1292 atomic_t inline_dir; /* # of inline_dentry inodes */
1293 atomic_t aw_cnt; /* # of atomic writes */
1294 atomic_t vw_cnt; /* # of volatile writes */
1295 atomic_t max_aw_cnt; /* max # of atomic writes */
1296 atomic_t max_vw_cnt; /* max # of volatile writes */
1297 int bg_gc; /* background gc calls */
1298 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1299 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1300 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1302 spinlock_t stat_lock; /* lock for stat operations */
1304 /* For app/fs IO statistics */
1305 spinlock_t iostat_lock;
1306 unsigned long long write_iostat[NR_IO_TYPE];
1309 /* For sysfs suppport */
1310 struct kobject s_kobj;
1311 struct completion s_kobj_unregister;
1313 /* For shrinker support */
1314 struct list_head s_list;
1315 int s_ndevs; /* number of devices */
1316 struct f2fs_dev_info *devs; /* for device list */
1317 unsigned int dirty_device; /* for checkpoint data flush */
1318 spinlock_t dev_lock; /* protect dirty_device */
1319 struct mutex umount_mutex;
1320 unsigned int shrinker_run_no;
1322 /* For write statistics */
1323 u64 sectors_written_start;
1326 /* Reference to checksum algorithm driver via cryptoapi */
1327 struct crypto_shash *s_chksum_driver;
1329 /* Precomputed FS UUID checksum for seeding other checksums */
1330 __u32 s_chksum_seed;
1333 #ifdef CONFIG_F2FS_FAULT_INJECTION
1334 #define f2fs_show_injection_info(type) \
1335 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \
1336 KERN_INFO, f2fs_fault_name[type], \
1337 __func__, __builtin_return_address(0))
1338 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1340 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1342 if (!ffi->inject_rate)
1345 if (!IS_FAULT_SET(ffi, type))
1348 atomic_inc(&ffi->inject_ops);
1349 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1350 atomic_set(&ffi->inject_ops, 0);
1356 #define f2fs_show_injection_info(type) do { } while (0)
1357 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1363 /* For write statistics. Suppose sector size is 512 bytes,
1364 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1366 #define BD_PART_WRITTEN(s) \
1367 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \
1368 (s)->sectors_written_start) >> 1)
1370 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1372 unsigned long now = jiffies;
1374 sbi->last_time[type] = now;
1376 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1377 if (type == REQ_TIME) {
1378 sbi->last_time[DISCARD_TIME] = now;
1379 sbi->last_time[GC_TIME] = now;
1383 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1385 unsigned long interval = sbi->interval_time[type] * HZ;
1387 return time_after(jiffies, sbi->last_time[type] + interval);
1390 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1393 unsigned long interval = sbi->interval_time[type] * HZ;
1394 unsigned int wait_ms = 0;
1397 delta = (sbi->last_time[type] + interval) - jiffies;
1399 wait_ms = jiffies_to_msecs(delta);
1407 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1408 const void *address, unsigned int length)
1411 struct shash_desc shash;
1416 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1418 desc.shash.tfm = sbi->s_chksum_driver;
1419 desc.shash.flags = 0;
1420 *(u32 *)desc.ctx = crc;
1422 err = crypto_shash_update(&desc.shash, address, length);
1425 return *(u32 *)desc.ctx;
1428 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1429 unsigned int length)
1431 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1434 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1435 void *buf, size_t buf_size)
1437 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1440 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1441 const void *address, unsigned int length)
1443 return __f2fs_crc32(sbi, crc, address, length);
1446 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1448 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1451 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1453 return sb->s_fs_info;
1456 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1458 return F2FS_SB(inode->i_sb);
1461 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1463 return F2FS_I_SB(mapping->host);
1466 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1468 return F2FS_M_SB(page->mapping);
1471 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1473 return (struct f2fs_super_block *)(sbi->raw_super);
1476 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1478 return (struct f2fs_checkpoint *)(sbi->ckpt);
1481 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1483 return (struct f2fs_node *)page_address(page);
1486 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1488 return &((struct f2fs_node *)page_address(page))->i;
1491 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1493 return (struct f2fs_nm_info *)(sbi->nm_info);
1496 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1498 return (struct f2fs_sm_info *)(sbi->sm_info);
1501 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1503 return (struct sit_info *)(SM_I(sbi)->sit_info);
1506 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1508 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1511 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1513 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1516 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1518 return sbi->meta_inode->i_mapping;
1521 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1523 return sbi->node_inode->i_mapping;
1526 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1528 return test_bit(type, &sbi->s_flag);
1531 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1533 set_bit(type, &sbi->s_flag);
1536 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1538 clear_bit(type, &sbi->s_flag);
1541 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1543 return le64_to_cpu(cp->checkpoint_ver);
1546 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1548 if (type < F2FS_MAX_QUOTAS)
1549 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1553 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1555 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1556 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1559 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1561 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1563 return ckpt_flags & f;
1566 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1568 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1571 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1573 unsigned int ckpt_flags;
1575 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1577 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1580 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1582 unsigned long flags;
1584 spin_lock_irqsave(&sbi->cp_lock, flags);
1585 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1586 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1589 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1591 unsigned int ckpt_flags;
1593 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1595 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1598 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1600 unsigned long flags;
1602 spin_lock_irqsave(&sbi->cp_lock, flags);
1603 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1604 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1607 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1609 unsigned long flags;
1611 set_sbi_flag(sbi, SBI_NEED_FSCK);
1614 spin_lock_irqsave(&sbi->cp_lock, flags);
1615 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1616 kfree(NM_I(sbi)->nat_bits);
1617 NM_I(sbi)->nat_bits = NULL;
1619 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1622 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1623 struct cp_control *cpc)
1625 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1627 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1630 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1632 down_read(&sbi->cp_rwsem);
1635 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1637 return down_read_trylock(&sbi->cp_rwsem);
1640 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1642 up_read(&sbi->cp_rwsem);
1645 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1647 down_write(&sbi->cp_rwsem);
1650 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1652 up_write(&sbi->cp_rwsem);
1655 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1657 int reason = CP_SYNC;
1659 if (test_opt(sbi, FASTBOOT))
1660 reason = CP_FASTBOOT;
1661 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1666 static inline bool __remain_node_summaries(int reason)
1668 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1671 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1673 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1674 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1678 * Check whether the inode has blocks or not
1680 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1682 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1684 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1687 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1689 return ofs == XATTR_NODE_OFFSET;
1692 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1693 struct inode *inode, bool cap)
1697 if (!test_opt(sbi, RESERVE_ROOT))
1699 if (IS_NOQUOTA(inode))
1701 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1703 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1704 in_group_p(F2FS_OPTION(sbi).s_resgid))
1706 if (cap && capable(CAP_SYS_RESOURCE))
1711 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1712 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1713 struct inode *inode, blkcnt_t *count)
1715 blkcnt_t diff = 0, release = 0;
1716 block_t avail_user_block_count;
1719 ret = dquot_reserve_block(inode, *count);
1723 if (time_to_inject(sbi, FAULT_BLOCK)) {
1724 f2fs_show_injection_info(FAULT_BLOCK);
1730 * let's increase this in prior to actual block count change in order
1731 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1733 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1735 spin_lock(&sbi->stat_lock);
1736 sbi->total_valid_block_count += (block_t)(*count);
1737 avail_user_block_count = sbi->user_block_count -
1738 sbi->current_reserved_blocks;
1740 if (!__allow_reserved_blocks(sbi, inode, true))
1741 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1742 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1743 avail_user_block_count -= sbi->unusable_block_count;
1744 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1745 diff = sbi->total_valid_block_count - avail_user_block_count;
1750 sbi->total_valid_block_count -= diff;
1752 spin_unlock(&sbi->stat_lock);
1756 spin_unlock(&sbi->stat_lock);
1758 if (unlikely(release)) {
1759 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1760 dquot_release_reservation_block(inode, release);
1762 f2fs_i_blocks_write(inode, *count, true, true);
1766 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1767 dquot_release_reservation_block(inode, release);
1771 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1772 struct inode *inode,
1775 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1777 spin_lock(&sbi->stat_lock);
1778 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1779 f2fs_bug_on(sbi, inode->i_blocks < sectors);
1780 sbi->total_valid_block_count -= (block_t)count;
1781 if (sbi->reserved_blocks &&
1782 sbi->current_reserved_blocks < sbi->reserved_blocks)
1783 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1784 sbi->current_reserved_blocks + count);
1785 spin_unlock(&sbi->stat_lock);
1786 f2fs_i_blocks_write(inode, count, false, true);
1789 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1791 atomic_inc(&sbi->nr_pages[count_type]);
1793 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1794 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA ||
1795 count_type == F2FS_RD_DATA || count_type == F2FS_RD_NODE ||
1796 count_type == F2FS_RD_META)
1799 set_sbi_flag(sbi, SBI_IS_DIRTY);
1802 static inline void inode_inc_dirty_pages(struct inode *inode)
1804 atomic_inc(&F2FS_I(inode)->dirty_pages);
1805 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1806 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1807 if (IS_NOQUOTA(inode))
1808 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1811 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1813 atomic_dec(&sbi->nr_pages[count_type]);
1816 static inline void inode_dec_dirty_pages(struct inode *inode)
1818 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1819 !S_ISLNK(inode->i_mode))
1822 atomic_dec(&F2FS_I(inode)->dirty_pages);
1823 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1824 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1825 if (IS_NOQUOTA(inode))
1826 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1829 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1831 return atomic_read(&sbi->nr_pages[count_type]);
1834 static inline int get_dirty_pages(struct inode *inode)
1836 return atomic_read(&F2FS_I(inode)->dirty_pages);
1839 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1841 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1842 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1843 sbi->log_blocks_per_seg;
1845 return segs / sbi->segs_per_sec;
1848 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1850 return sbi->total_valid_block_count;
1853 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1855 return sbi->discard_blks;
1858 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1860 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1862 /* return NAT or SIT bitmap */
1863 if (flag == NAT_BITMAP)
1864 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1865 else if (flag == SIT_BITMAP)
1866 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1871 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1873 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1876 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1878 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1881 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
1882 offset = (flag == SIT_BITMAP) ?
1883 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
1884 return &ckpt->sit_nat_version_bitmap + offset;
1887 if (__cp_payload(sbi) > 0) {
1888 if (flag == NAT_BITMAP)
1889 return &ckpt->sit_nat_version_bitmap;
1891 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1893 offset = (flag == NAT_BITMAP) ?
1894 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1895 return &ckpt->sit_nat_version_bitmap + offset;
1899 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1901 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1903 if (sbi->cur_cp_pack == 2)
1904 start_addr += sbi->blocks_per_seg;
1908 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1910 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1912 if (sbi->cur_cp_pack == 1)
1913 start_addr += sbi->blocks_per_seg;
1917 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1919 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1922 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1924 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1927 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
1928 struct inode *inode, bool is_inode)
1930 block_t valid_block_count;
1931 unsigned int valid_node_count;
1936 err = dquot_alloc_inode(inode);
1941 err = dquot_reserve_block(inode, 1);
1946 if (time_to_inject(sbi, FAULT_BLOCK)) {
1947 f2fs_show_injection_info(FAULT_BLOCK);
1951 spin_lock(&sbi->stat_lock);
1953 valid_block_count = sbi->total_valid_block_count +
1954 sbi->current_reserved_blocks + 1;
1956 if (!__allow_reserved_blocks(sbi, inode, false))
1957 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
1958 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1959 valid_block_count += sbi->unusable_block_count;
1961 if (unlikely(valid_block_count > sbi->user_block_count)) {
1962 spin_unlock(&sbi->stat_lock);
1966 valid_node_count = sbi->total_valid_node_count + 1;
1967 if (unlikely(valid_node_count > sbi->total_node_count)) {
1968 spin_unlock(&sbi->stat_lock);
1972 sbi->total_valid_node_count++;
1973 sbi->total_valid_block_count++;
1974 spin_unlock(&sbi->stat_lock);
1978 f2fs_mark_inode_dirty_sync(inode, true);
1980 f2fs_i_blocks_write(inode, 1, true, true);
1983 percpu_counter_inc(&sbi->alloc_valid_block_count);
1989 dquot_free_inode(inode);
1991 dquot_release_reservation_block(inode, 1);
1996 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1997 struct inode *inode, bool is_inode)
1999 spin_lock(&sbi->stat_lock);
2001 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2002 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2003 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
2005 sbi->total_valid_node_count--;
2006 sbi->total_valid_block_count--;
2007 if (sbi->reserved_blocks &&
2008 sbi->current_reserved_blocks < sbi->reserved_blocks)
2009 sbi->current_reserved_blocks++;
2011 spin_unlock(&sbi->stat_lock);
2014 dquot_free_inode(inode);
2016 f2fs_i_blocks_write(inode, 1, false, true);
2019 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2021 return sbi->total_valid_node_count;
2024 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2026 percpu_counter_inc(&sbi->total_valid_inode_count);
2029 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2031 percpu_counter_dec(&sbi->total_valid_inode_count);
2034 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2036 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2039 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2040 pgoff_t index, bool for_write)
2044 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2046 page = find_get_page_flags(mapping, index,
2047 FGP_LOCK | FGP_ACCESSED);
2049 page = find_lock_page(mapping, index);
2053 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2054 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
2060 return grab_cache_page(mapping, index);
2061 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2064 static inline struct page *f2fs_pagecache_get_page(
2065 struct address_space *mapping, pgoff_t index,
2066 int fgp_flags, gfp_t gfp_mask)
2068 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2069 f2fs_show_injection_info(FAULT_PAGE_GET);
2073 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2076 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2078 char *src_kaddr = kmap(src);
2079 char *dst_kaddr = kmap(dst);
2081 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2086 static inline void f2fs_put_page(struct page *page, int unlock)
2092 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2098 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2101 f2fs_put_page(dn->node_page, 1);
2102 if (dn->inode_page && dn->node_page != dn->inode_page)
2103 f2fs_put_page(dn->inode_page, 0);
2104 dn->node_page = NULL;
2105 dn->inode_page = NULL;
2108 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2111 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2114 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2119 entry = kmem_cache_alloc(cachep, flags);
2121 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2125 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
2126 int npages, bool no_fail)
2131 /* No failure on bio allocation */
2132 bio = bio_alloc(GFP_NOIO, npages);
2134 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
2137 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
2138 f2fs_show_injection_info(FAULT_ALLOC_BIO);
2142 return bio_alloc(GFP_KERNEL, npages);
2145 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2147 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2148 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2149 get_pages(sbi, F2FS_WB_CP_DATA))
2151 return f2fs_time_over(sbi, type);
2154 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2155 unsigned long index, void *item)
2157 while (radix_tree_insert(root, index, item))
2161 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2163 static inline bool IS_INODE(struct page *page)
2165 struct f2fs_node *p = F2FS_NODE(page);
2167 return RAW_IS_INODE(p);
2170 static inline int offset_in_addr(struct f2fs_inode *i)
2172 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2173 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2176 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2178 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2181 static inline int f2fs_has_extra_attr(struct inode *inode);
2182 static inline block_t datablock_addr(struct inode *inode,
2183 struct page *node_page, unsigned int offset)
2185 struct f2fs_node *raw_node;
2188 bool is_inode = IS_INODE(node_page);
2190 raw_node = F2FS_NODE(node_page);
2192 /* from GC path only */
2195 base = offset_in_addr(&raw_node->i);
2196 else if (f2fs_has_extra_attr(inode))
2197 base = get_extra_isize(inode);
2200 addr_array = blkaddr_in_node(raw_node);
2201 return le32_to_cpu(addr_array[base + offset]);
2204 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2209 mask = 1 << (7 - (nr & 0x07));
2210 return mask & *addr;
2213 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2218 mask = 1 << (7 - (nr & 0x07));
2222 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2227 mask = 1 << (7 - (nr & 0x07));
2231 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2237 mask = 1 << (7 - (nr & 0x07));
2243 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2249 mask = 1 << (7 - (nr & 0x07));
2255 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2260 mask = 1 << (7 - (nr & 0x07));
2267 #define F2FS_SECRM_FL 0x00000001 /* Secure deletion */
2268 #define F2FS_UNRM_FL 0x00000002 /* Undelete */
2269 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2270 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2271 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2272 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2273 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2274 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2275 /* Reserved for compression usage... */
2276 #define F2FS_DIRTY_FL 0x00000100
2277 #define F2FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
2278 #define F2FS_NOCOMPR_FL 0x00000400 /* Don't compress */
2279 #define F2FS_ENCRYPT_FL 0x00000800 /* encrypted file */
2280 /* End compression flags --- maybe not all used */
2281 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2282 #define F2FS_IMAGIC_FL 0x00002000 /* AFS directory */
2283 #define F2FS_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
2284 #define F2FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */
2285 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2286 #define F2FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
2287 #define F2FS_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
2288 #define F2FS_EXTENTS_FL 0x00080000 /* Inode uses extents */
2289 #define F2FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */
2290 #define F2FS_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
2291 #define F2FS_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
2292 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2293 #define F2FS_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
2295 #define F2FS_FL_USER_VISIBLE 0x304BDFFF /* User visible flags */
2296 #define F2FS_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */
2298 /* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */
2299 #define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \
2300 F2FS_IMMUTABLE_FL | \
2304 F2FS_PROJINHERIT_FL)
2306 /* Flags that should be inherited by new inodes from their parent. */
2307 #define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\
2308 F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\
2309 F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\
2310 F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\
2311 F2FS_PROJINHERIT_FL)
2313 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2314 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL))
2316 /* Flags that are appropriate for non-directories/regular files. */
2317 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2319 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2323 else if (S_ISREG(mode))
2324 return flags & F2FS_REG_FLMASK;
2326 return flags & F2FS_OTHER_FLMASK;
2329 /* used for f2fs_inode_info->flags */
2331 FI_NEW_INODE, /* indicate newly allocated inode */
2332 FI_DIRTY_INODE, /* indicate inode is dirty or not */
2333 FI_AUTO_RECOVER, /* indicate inode is recoverable */
2334 FI_DIRTY_DIR, /* indicate directory has dirty pages */
2335 FI_INC_LINK, /* need to increment i_nlink */
2336 FI_ACL_MODE, /* indicate acl mode */
2337 FI_NO_ALLOC, /* should not allocate any blocks */
2338 FI_FREE_NID, /* free allocated nide */
2339 FI_NO_EXTENT, /* not to use the extent cache */
2340 FI_INLINE_XATTR, /* used for inline xattr */
2341 FI_INLINE_DATA, /* used for inline data*/
2342 FI_INLINE_DENTRY, /* used for inline dentry */
2343 FI_APPEND_WRITE, /* inode has appended data */
2344 FI_UPDATE_WRITE, /* inode has in-place-update data */
2345 FI_NEED_IPU, /* used for ipu per file */
2346 FI_ATOMIC_FILE, /* indicate atomic file */
2347 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
2348 FI_VOLATILE_FILE, /* indicate volatile file */
2349 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
2350 FI_DROP_CACHE, /* drop dirty page cache */
2351 FI_DATA_EXIST, /* indicate data exists */
2352 FI_INLINE_DOTS, /* indicate inline dot dentries */
2353 FI_DO_DEFRAG, /* indicate defragment is running */
2354 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
2355 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
2356 FI_HOT_DATA, /* indicate file is hot */
2357 FI_EXTRA_ATTR, /* indicate file has extra attribute */
2358 FI_PROJ_INHERIT, /* indicate file inherits projectid */
2359 FI_PIN_FILE, /* indicate file should not be gced */
2360 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
2363 static inline void __mark_inode_dirty_flag(struct inode *inode,
2367 case FI_INLINE_XATTR:
2368 case FI_INLINE_DATA:
2369 case FI_INLINE_DENTRY:
2374 case FI_INLINE_DOTS:
2376 f2fs_mark_inode_dirty_sync(inode, true);
2380 static inline void set_inode_flag(struct inode *inode, int flag)
2382 if (!test_bit(flag, &F2FS_I(inode)->flags))
2383 set_bit(flag, &F2FS_I(inode)->flags);
2384 __mark_inode_dirty_flag(inode, flag, true);
2387 static inline int is_inode_flag_set(struct inode *inode, int flag)
2389 return test_bit(flag, &F2FS_I(inode)->flags);
2392 static inline void clear_inode_flag(struct inode *inode, int flag)
2394 if (test_bit(flag, &F2FS_I(inode)->flags))
2395 clear_bit(flag, &F2FS_I(inode)->flags);
2396 __mark_inode_dirty_flag(inode, flag, false);
2399 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2401 F2FS_I(inode)->i_acl_mode = mode;
2402 set_inode_flag(inode, FI_ACL_MODE);
2403 f2fs_mark_inode_dirty_sync(inode, false);
2406 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2412 f2fs_mark_inode_dirty_sync(inode, true);
2415 static inline void f2fs_i_blocks_write(struct inode *inode,
2416 block_t diff, bool add, bool claim)
2418 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2419 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2421 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2424 dquot_claim_block(inode, diff);
2426 dquot_alloc_block_nofail(inode, diff);
2428 dquot_free_block(inode, diff);
2431 f2fs_mark_inode_dirty_sync(inode, true);
2432 if (clean || recover)
2433 set_inode_flag(inode, FI_AUTO_RECOVER);
2436 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2438 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2439 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2441 if (i_size_read(inode) == i_size)
2444 i_size_write(inode, i_size);
2445 f2fs_mark_inode_dirty_sync(inode, true);
2446 if (clean || recover)
2447 set_inode_flag(inode, FI_AUTO_RECOVER);
2450 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2452 F2FS_I(inode)->i_current_depth = depth;
2453 f2fs_mark_inode_dirty_sync(inode, true);
2456 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2459 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2460 f2fs_mark_inode_dirty_sync(inode, true);
2463 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2465 F2FS_I(inode)->i_xattr_nid = xnid;
2466 f2fs_mark_inode_dirty_sync(inode, true);
2469 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2471 F2FS_I(inode)->i_pino = pino;
2472 f2fs_mark_inode_dirty_sync(inode, true);
2475 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2477 struct f2fs_inode_info *fi = F2FS_I(inode);
2479 if (ri->i_inline & F2FS_INLINE_XATTR)
2480 set_bit(FI_INLINE_XATTR, &fi->flags);
2481 if (ri->i_inline & F2FS_INLINE_DATA)
2482 set_bit(FI_INLINE_DATA, &fi->flags);
2483 if (ri->i_inline & F2FS_INLINE_DENTRY)
2484 set_bit(FI_INLINE_DENTRY, &fi->flags);
2485 if (ri->i_inline & F2FS_DATA_EXIST)
2486 set_bit(FI_DATA_EXIST, &fi->flags);
2487 if (ri->i_inline & F2FS_INLINE_DOTS)
2488 set_bit(FI_INLINE_DOTS, &fi->flags);
2489 if (ri->i_inline & F2FS_EXTRA_ATTR)
2490 set_bit(FI_EXTRA_ATTR, &fi->flags);
2491 if (ri->i_inline & F2FS_PIN_FILE)
2492 set_bit(FI_PIN_FILE, &fi->flags);
2495 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2499 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2500 ri->i_inline |= F2FS_INLINE_XATTR;
2501 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2502 ri->i_inline |= F2FS_INLINE_DATA;
2503 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2504 ri->i_inline |= F2FS_INLINE_DENTRY;
2505 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2506 ri->i_inline |= F2FS_DATA_EXIST;
2507 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2508 ri->i_inline |= F2FS_INLINE_DOTS;
2509 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2510 ri->i_inline |= F2FS_EXTRA_ATTR;
2511 if (is_inode_flag_set(inode, FI_PIN_FILE))
2512 ri->i_inline |= F2FS_PIN_FILE;
2515 static inline int f2fs_has_extra_attr(struct inode *inode)
2517 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2520 static inline int f2fs_has_inline_xattr(struct inode *inode)
2522 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2525 static inline unsigned int addrs_per_inode(struct inode *inode)
2527 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode);
2530 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2532 struct f2fs_inode *ri = F2FS_INODE(page);
2534 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2535 get_inline_xattr_addrs(inode)]);
2538 static inline int inline_xattr_size(struct inode *inode)
2540 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2543 static inline int f2fs_has_inline_data(struct inode *inode)
2545 return is_inode_flag_set(inode, FI_INLINE_DATA);
2548 static inline int f2fs_exist_data(struct inode *inode)
2550 return is_inode_flag_set(inode, FI_DATA_EXIST);
2553 static inline int f2fs_has_inline_dots(struct inode *inode)
2555 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2558 static inline bool f2fs_is_pinned_file(struct inode *inode)
2560 return is_inode_flag_set(inode, FI_PIN_FILE);
2563 static inline bool f2fs_is_atomic_file(struct inode *inode)
2565 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2568 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2570 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2573 static inline bool f2fs_is_volatile_file(struct inode *inode)
2575 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2578 static inline bool f2fs_is_first_block_written(struct inode *inode)
2580 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2583 static inline bool f2fs_is_drop_cache(struct inode *inode)
2585 return is_inode_flag_set(inode, FI_DROP_CACHE);
2588 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2590 struct f2fs_inode *ri = F2FS_INODE(page);
2591 int extra_size = get_extra_isize(inode);
2593 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2596 static inline int f2fs_has_inline_dentry(struct inode *inode)
2598 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2601 static inline int is_file(struct inode *inode, int type)
2603 return F2FS_I(inode)->i_advise & type;
2606 static inline void set_file(struct inode *inode, int type)
2608 F2FS_I(inode)->i_advise |= type;
2609 f2fs_mark_inode_dirty_sync(inode, true);
2612 static inline void clear_file(struct inode *inode, int type)
2614 F2FS_I(inode)->i_advise &= ~type;
2615 f2fs_mark_inode_dirty_sync(inode, true);
2618 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2623 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2625 spin_lock(&sbi->inode_lock[DIRTY_META]);
2626 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2627 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2630 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2631 file_keep_isize(inode) ||
2632 i_size_read(inode) & ~PAGE_MASK)
2635 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2637 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2639 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2641 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
2642 &F2FS_I(inode)->i_crtime))
2645 down_read(&F2FS_I(inode)->i_sem);
2646 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2647 up_read(&F2FS_I(inode)->i_sem);
2652 static inline bool f2fs_readonly(struct super_block *sb)
2654 return sb_rdonly(sb);
2657 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2659 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2662 static inline bool is_dot_dotdot(const struct qstr *str)
2664 if (str->len == 1 && str->name[0] == '.')
2667 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2673 static inline bool f2fs_may_extent_tree(struct inode *inode)
2675 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
2676 is_inode_flag_set(inode, FI_NO_EXTENT))
2679 return S_ISREG(inode->i_mode);
2682 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2683 size_t size, gfp_t flags)
2685 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2686 f2fs_show_injection_info(FAULT_KMALLOC);
2690 return kmalloc(size, flags);
2693 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2694 size_t size, gfp_t flags)
2696 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2699 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2700 size_t size, gfp_t flags)
2702 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2703 f2fs_show_injection_info(FAULT_KVMALLOC);
2707 return kvmalloc(size, flags);
2710 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2711 size_t size, gfp_t flags)
2713 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2716 static inline int get_extra_isize(struct inode *inode)
2718 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2721 static inline int get_inline_xattr_addrs(struct inode *inode)
2723 return F2FS_I(inode)->i_inline_xattr_size;
2726 #define f2fs_get_inode_mode(i) \
2727 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2728 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2730 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2731 (offsetof(struct f2fs_inode, i_extra_end) - \
2732 offsetof(struct f2fs_inode, i_extra_isize)) \
2734 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2735 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2736 ((offsetof(typeof(*f2fs_inode), field) + \
2737 sizeof((f2fs_inode)->field)) \
2738 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2740 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2744 spin_lock(&sbi->iostat_lock);
2745 for (i = 0; i < NR_IO_TYPE; i++)
2746 sbi->write_iostat[i] = 0;
2747 spin_unlock(&sbi->iostat_lock);
2750 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2751 enum iostat_type type, unsigned long long io_bytes)
2753 if (!sbi->iostat_enable)
2755 spin_lock(&sbi->iostat_lock);
2756 sbi->write_iostat[type] += io_bytes;
2758 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2759 sbi->write_iostat[APP_BUFFERED_IO] =
2760 sbi->write_iostat[APP_WRITE_IO] -
2761 sbi->write_iostat[APP_DIRECT_IO];
2762 spin_unlock(&sbi->iostat_lock);
2765 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO(fio->type) == META && \
2766 (!is_read_io(fio->op) || fio->is_meta))
2768 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2769 block_t blkaddr, int type);
2770 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2771 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
2772 block_t blkaddr, int type)
2774 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
2775 f2fs_msg(sbi->sb, KERN_ERR,
2776 "invalid blkaddr: %u, type: %d, run fsck to fix.",
2778 f2fs_bug_on(sbi, 1);
2782 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
2784 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
2789 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi,
2792 if (!__is_valid_data_blkaddr(blkaddr))
2794 verify_blkaddr(sbi, blkaddr, DATA_GENERIC);
2801 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2802 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
2803 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock,
2805 int f2fs_truncate(struct inode *inode);
2806 int f2fs_getattr(const struct path *path, struct kstat *stat,
2807 u32 request_mask, unsigned int flags);
2808 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2809 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2810 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2811 int f2fs_precache_extents(struct inode *inode);
2812 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2813 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2814 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
2815 int f2fs_pin_file_control(struct inode *inode, bool inc);
2820 void f2fs_set_inode_flags(struct inode *inode);
2821 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2822 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2823 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2824 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2825 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2826 void f2fs_update_inode(struct inode *inode, struct page *node_page);
2827 void f2fs_update_inode_page(struct inode *inode);
2828 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2829 void f2fs_evict_inode(struct inode *inode);
2830 void f2fs_handle_failed_inode(struct inode *inode);
2835 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
2836 bool hot, bool set);
2837 struct dentry *f2fs_get_parent(struct dentry *child);
2842 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
2843 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
2844 f2fs_hash_t namehash, int *max_slots,
2845 struct f2fs_dentry_ptr *d);
2846 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2847 unsigned int start_pos, struct fscrypt_str *fstr);
2848 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
2849 struct f2fs_dentry_ptr *d);
2850 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
2851 const struct qstr *new_name,
2852 const struct qstr *orig_name, struct page *dpage);
2853 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
2854 unsigned int current_depth);
2855 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
2856 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2857 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2858 struct fscrypt_name *fname, struct page **res_page);
2859 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2860 const struct qstr *child, struct page **res_page);
2861 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2862 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2863 struct page **page);
2864 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2865 struct page *page, struct inode *inode);
2866 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2867 const struct qstr *name, f2fs_hash_t name_hash,
2868 unsigned int bit_pos);
2869 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2870 const struct qstr *orig_name,
2871 struct inode *inode, nid_t ino, umode_t mode);
2872 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
2873 struct inode *inode, nid_t ino, umode_t mode);
2874 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
2875 struct inode *inode, nid_t ino, umode_t mode);
2876 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2877 struct inode *dir, struct inode *inode);
2878 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2879 bool f2fs_empty_dir(struct inode *dir);
2881 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2883 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2884 inode, inode->i_ino, inode->i_mode);
2890 int f2fs_inode_dirtied(struct inode *inode, bool sync);
2891 void f2fs_inode_synced(struct inode *inode);
2892 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
2893 int f2fs_quota_sync(struct super_block *sb, int type);
2894 void f2fs_quota_off_umount(struct super_block *sb);
2895 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2896 int f2fs_sync_fs(struct super_block *sb, int sync);
2897 extern __printf(3, 4)
2898 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2899 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
2904 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
2905 struct fscrypt_name *fname);
2910 struct dnode_of_data;
2913 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
2914 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
2915 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
2916 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
2917 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
2918 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
2919 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2920 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2921 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2922 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
2923 struct node_info *ni);
2924 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2925 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2926 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
2927 int f2fs_truncate_xattr_node(struct inode *inode);
2928 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
2929 unsigned int seq_id);
2930 int f2fs_remove_inode_page(struct inode *inode);
2931 struct page *f2fs_new_inode_page(struct inode *inode);
2932 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
2933 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2934 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2935 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
2936 int f2fs_move_node_page(struct page *node_page, int gc_type);
2937 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2938 struct writeback_control *wbc, bool atomic,
2939 unsigned int *seq_id);
2940 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
2941 struct writeback_control *wbc,
2942 bool do_balance, enum iostat_type io_type);
2943 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
2944 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2945 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2946 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2947 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2948 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
2949 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
2950 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2951 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
2952 unsigned int segno, struct f2fs_summary_block *sum);
2953 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2954 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
2955 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
2956 int __init f2fs_create_node_manager_caches(void);
2957 void f2fs_destroy_node_manager_caches(void);
2962 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
2963 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
2964 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
2965 void f2fs_drop_inmem_pages(struct inode *inode);
2966 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
2967 int f2fs_commit_inmem_pages(struct inode *inode);
2968 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2969 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2970 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
2971 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
2972 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
2973 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2974 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2975 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2976 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
2977 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
2978 bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
2979 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
2980 struct cp_control *cpc);
2981 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
2982 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi);
2983 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
2984 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2985 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
2986 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2987 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
2988 struct cp_control *cpc);
2989 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2990 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
2992 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
2993 enum iostat_type io_type);
2994 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2995 void f2fs_outplace_write_data(struct dnode_of_data *dn,
2996 struct f2fs_io_info *fio);
2997 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
2998 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2999 block_t old_blkaddr, block_t new_blkaddr,
3000 bool recover_curseg, bool recover_newaddr);
3001 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3002 block_t old_addr, block_t new_addr,
3003 unsigned char version, bool recover_curseg,
3004 bool recover_newaddr);
3005 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3006 block_t old_blkaddr, block_t *new_blkaddr,
3007 struct f2fs_summary *sum, int type,
3008 struct f2fs_io_info *fio, bool add_list);
3009 void f2fs_wait_on_page_writeback(struct page *page,
3010 enum page_type type, bool ordered);
3011 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3012 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3014 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3015 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3016 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3017 unsigned int val, int alloc);
3018 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3019 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3020 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3021 int __init f2fs_create_segment_manager_caches(void);
3022 void f2fs_destroy_segment_manager_caches(void);
3023 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3024 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3025 enum page_type type, enum temp_type temp);
3030 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3031 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3032 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3033 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index);
3034 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3035 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3036 block_t blkaddr, int type);
3037 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3038 int type, bool sync);
3039 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3040 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3041 long nr_to_write, enum iostat_type io_type);
3042 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3043 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3044 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3045 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3046 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3047 unsigned int devidx, int type);
3048 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3049 unsigned int devidx, int type);
3050 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3051 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3052 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3053 void f2fs_add_orphan_inode(struct inode *inode);
3054 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3055 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3056 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3057 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3058 void f2fs_remove_dirty_inode(struct inode *inode);
3059 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3060 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
3061 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3062 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3063 int __init f2fs_create_checkpoint_caches(void);
3064 void f2fs_destroy_checkpoint_caches(void);
3069 int f2fs_init_post_read_processing(void);
3070 void f2fs_destroy_post_read_processing(void);
3071 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3072 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3073 struct inode *inode, struct page *page,
3074 nid_t ino, enum page_type type);
3075 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3076 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3077 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3078 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3079 block_t blk_addr, struct bio *bio);
3080 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3081 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3082 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3083 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3084 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3085 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3086 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3087 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3088 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3089 int op_flags, bool for_write);
3090 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3091 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3093 struct page *f2fs_get_new_data_page(struct inode *inode,
3094 struct page *ipage, pgoff_t index, bool new_i_size);
3095 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3096 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3097 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3098 int create, int flag);
3099 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3100 u64 start, u64 len);
3101 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3102 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3103 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3104 unsigned int length);
3105 int f2fs_release_page(struct page *page, gfp_t wait);
3106 #ifdef CONFIG_MIGRATION
3107 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3108 struct page *page, enum migrate_mode mode);
3110 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3111 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3116 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3117 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3118 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3119 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3120 unsigned int segno);
3121 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3126 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3127 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3132 #ifdef CONFIG_F2FS_STAT_FS
3133 struct f2fs_stat_info {
3134 struct list_head stat_list;
3135 struct f2fs_sb_info *sbi;
3136 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3137 int main_area_segs, main_area_sections, main_area_zones;
3138 unsigned long long hit_largest, hit_cached, hit_rbtree;
3139 unsigned long long hit_total, total_ext;
3140 int ext_tree, zombie_tree, ext_node;
3141 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3142 int ndirty_data, ndirty_qdata;
3144 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3145 int nats, dirty_nats, sits, dirty_sits;
3146 int free_nids, avail_nids, alloc_nids;
3147 int total_count, utilization;
3148 int bg_gc, nr_wb_cp_data, nr_wb_data;
3149 int nr_rd_data, nr_rd_node, nr_rd_meta;
3150 unsigned int io_skip_bggc, other_skip_bggc;
3151 int nr_flushing, nr_flushed, flush_list_empty;
3152 int nr_discarding, nr_discarded;
3154 unsigned int undiscard_blks;
3155 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3156 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3157 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3158 unsigned int bimodal, avg_vblocks;
3159 int util_free, util_valid, util_invalid;
3160 int rsvd_segs, overp_segs;
3161 int dirty_count, node_pages, meta_pages;
3162 int prefree_count, call_count, cp_count, bg_cp_count;
3163 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3164 int bg_node_segs, bg_data_segs;
3165 int tot_blks, data_blks, node_blks;
3166 int bg_data_blks, bg_node_blks;
3167 unsigned long long skipped_atomic_files[2];
3168 int curseg[NR_CURSEG_TYPE];
3169 int cursec[NR_CURSEG_TYPE];
3170 int curzone[NR_CURSEG_TYPE];
3172 unsigned int meta_count[META_MAX];
3173 unsigned int segment_count[2];
3174 unsigned int block_count[2];
3175 unsigned int inplace_count;
3176 unsigned long long base_mem, cache_mem, page_mem;
3179 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3181 return (struct f2fs_stat_info *)sbi->stat_info;
3184 #define stat_inc_cp_count(si) ((si)->cp_count++)
3185 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3186 #define stat_inc_call_count(si) ((si)->call_count++)
3187 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
3188 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3189 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3190 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3191 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3192 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3193 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3194 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3195 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3196 #define stat_inc_inline_xattr(inode) \
3198 if (f2fs_has_inline_xattr(inode)) \
3199 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3201 #define stat_dec_inline_xattr(inode) \
3203 if (f2fs_has_inline_xattr(inode)) \
3204 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3206 #define stat_inc_inline_inode(inode) \
3208 if (f2fs_has_inline_data(inode)) \
3209 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3211 #define stat_dec_inline_inode(inode) \
3213 if (f2fs_has_inline_data(inode)) \
3214 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3216 #define stat_inc_inline_dir(inode) \
3218 if (f2fs_has_inline_dentry(inode)) \
3219 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3221 #define stat_dec_inline_dir(inode) \
3223 if (f2fs_has_inline_dentry(inode)) \
3224 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3226 #define stat_inc_meta_count(sbi, blkaddr) \
3228 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3229 atomic_inc(&(sbi)->meta_count[META_CP]); \
3230 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3231 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3232 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3233 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3234 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3235 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3237 #define stat_inc_seg_type(sbi, curseg) \
3238 ((sbi)->segment_count[(curseg)->alloc_type]++)
3239 #define stat_inc_block_count(sbi, curseg) \
3240 ((sbi)->block_count[(curseg)->alloc_type]++)
3241 #define stat_inc_inplace_blocks(sbi) \
3242 (atomic_inc(&(sbi)->inplace_count))
3243 #define stat_inc_atomic_write(inode) \
3244 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3245 #define stat_dec_atomic_write(inode) \
3246 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3247 #define stat_update_max_atomic_write(inode) \
3249 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3250 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3252 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3254 #define stat_inc_volatile_write(inode) \
3255 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3256 #define stat_dec_volatile_write(inode) \
3257 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3258 #define stat_update_max_volatile_write(inode) \
3260 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3261 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3263 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3265 #define stat_inc_seg_count(sbi, type, gc_type) \
3267 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3269 if ((type) == SUM_TYPE_DATA) { \
3271 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3274 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3278 #define stat_inc_tot_blk_count(si, blks) \
3279 ((si)->tot_blks += (blks))
3281 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3283 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3284 stat_inc_tot_blk_count(si, blks); \
3285 si->data_blks += (blks); \
3286 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3289 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3291 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3292 stat_inc_tot_blk_count(si, blks); \
3293 si->node_blks += (blks); \
3294 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3297 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3298 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3299 int __init f2fs_create_root_stats(void);
3300 void f2fs_destroy_root_stats(void);
3302 #define stat_inc_cp_count(si) do { } while (0)
3303 #define stat_inc_bg_cp_count(si) do { } while (0)
3304 #define stat_inc_call_count(si) do { } while (0)
3305 #define stat_inc_bggc_count(si) do { } while (0)
3306 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3307 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3308 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3309 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3310 #define stat_inc_total_hit(sb) do { } while (0)
3311 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3312 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3313 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3314 #define stat_inc_inline_xattr(inode) do { } while (0)
3315 #define stat_dec_inline_xattr(inode) do { } while (0)
3316 #define stat_inc_inline_inode(inode) do { } while (0)
3317 #define stat_dec_inline_inode(inode) do { } while (0)
3318 #define stat_inc_inline_dir(inode) do { } while (0)
3319 #define stat_dec_inline_dir(inode) do { } while (0)
3320 #define stat_inc_atomic_write(inode) do { } while (0)
3321 #define stat_dec_atomic_write(inode) do { } while (0)
3322 #define stat_update_max_atomic_write(inode) do { } while (0)
3323 #define stat_inc_volatile_write(inode) do { } while (0)
3324 #define stat_dec_volatile_write(inode) do { } while (0)
3325 #define stat_update_max_volatile_write(inode) do { } while (0)
3326 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3327 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3328 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3329 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3330 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3331 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3332 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3333 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3335 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3336 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3337 static inline int __init f2fs_create_root_stats(void) { return 0; }
3338 static inline void f2fs_destroy_root_stats(void) { }
3341 extern const struct file_operations f2fs_dir_operations;
3342 extern const struct file_operations f2fs_file_operations;
3343 extern const struct inode_operations f2fs_file_inode_operations;
3344 extern const struct address_space_operations f2fs_dblock_aops;
3345 extern const struct address_space_operations f2fs_node_aops;
3346 extern const struct address_space_operations f2fs_meta_aops;
3347 extern const struct inode_operations f2fs_dir_inode_operations;
3348 extern const struct inode_operations f2fs_symlink_inode_operations;
3349 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3350 extern const struct inode_operations f2fs_special_inode_operations;
3351 extern struct kmem_cache *f2fs_inode_entry_slab;
3356 bool f2fs_may_inline_data(struct inode *inode);
3357 bool f2fs_may_inline_dentry(struct inode *inode);
3358 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3359 void f2fs_truncate_inline_inode(struct inode *inode,
3360 struct page *ipage, u64 from);
3361 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3362 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3363 int f2fs_convert_inline_inode(struct inode *inode);
3364 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3365 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3366 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3367 struct fscrypt_name *fname, struct page **res_page);
3368 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3369 struct page *ipage);
3370 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3371 const struct qstr *orig_name,
3372 struct inode *inode, nid_t ino, umode_t mode);
3373 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3374 struct page *page, struct inode *dir,
3375 struct inode *inode);
3376 bool f2fs_empty_inline_dir(struct inode *dir);
3377 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3378 struct fscrypt_str *fstr);
3379 int f2fs_inline_data_fiemap(struct inode *inode,
3380 struct fiemap_extent_info *fieinfo,
3381 __u64 start, __u64 len);
3386 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3387 struct shrink_control *sc);
3388 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3389 struct shrink_control *sc);
3390 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3391 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3396 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
3397 struct rb_entry *cached_re, unsigned int ofs);
3398 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3399 struct rb_root_cached *root,
3400 struct rb_node **parent,
3401 unsigned int ofs, bool *leftmost);
3402 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
3403 struct rb_entry *cached_re, unsigned int ofs,
3404 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3405 struct rb_node ***insert_p, struct rb_node **insert_parent,
3406 bool force, bool *leftmost);
3407 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3408 struct rb_root_cached *root);
3409 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3410 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3411 void f2fs_drop_extent_tree(struct inode *inode);
3412 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3413 void f2fs_destroy_extent_tree(struct inode *inode);
3414 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3415 struct extent_info *ei);
3416 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3417 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3418 pgoff_t fofs, block_t blkaddr, unsigned int len);
3419 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3420 int __init f2fs_create_extent_cache(void);
3421 void f2fs_destroy_extent_cache(void);
3426 int __init f2fs_init_sysfs(void);
3427 void f2fs_exit_sysfs(void);
3428 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3429 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3434 static inline bool f2fs_encrypted_inode(struct inode *inode)
3436 return file_is_encrypt(inode);
3439 static inline bool f2fs_encrypted_file(struct inode *inode)
3441 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
3444 static inline void f2fs_set_encrypted_inode(struct inode *inode)
3446 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3447 file_set_encrypt(inode);
3448 f2fs_set_inode_flags(inode);
3453 * Returns true if the reads of the inode's data need to undergo some
3454 * postprocessing step, like decryption or authenticity verification.
3456 static inline bool f2fs_post_read_required(struct inode *inode)
3458 return f2fs_encrypted_file(inode);
3461 #define F2FS_FEATURE_FUNCS(name, flagname) \
3462 static inline int f2fs_sb_has_##name(struct super_block *sb) \
3464 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_##flagname); \
3467 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3468 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3469 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3470 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3471 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3472 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3473 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3474 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3475 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3476 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
3478 #ifdef CONFIG_BLK_DEV_ZONED
3479 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
3480 struct block_device *bdev, block_t blkaddr)
3482 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3485 for (i = 0; i < sbi->s_ndevs; i++)
3486 if (FDEV(i).bdev == bdev)
3487 return FDEV(i).blkz_type[zno];
3492 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
3494 return f2fs_sb_has_blkzoned(sbi->sb);
3497 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
3499 return blk_queue_discard(bdev_get_queue(sbi->sb->s_bdev));
3502 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
3504 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
3505 f2fs_hw_should_discard(sbi);
3508 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3510 clear_opt(sbi, ADAPTIVE);
3511 clear_opt(sbi, LFS);
3514 case F2FS_MOUNT_ADAPTIVE:
3515 set_opt(sbi, ADAPTIVE);
3517 case F2FS_MOUNT_LFS:
3523 static inline bool f2fs_may_encrypt(struct inode *inode)
3525 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3526 umode_t mode = inode->i_mode;
3528 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3534 static inline int block_unaligned_IO(struct inode *inode,
3535 struct kiocb *iocb, struct iov_iter *iter)
3537 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
3538 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
3539 loff_t offset = iocb->ki_pos;
3540 unsigned long align = offset | iov_iter_alignment(iter);
3542 return align & blocksize_mask;
3545 static inline int allow_outplace_dio(struct inode *inode,
3546 struct kiocb *iocb, struct iov_iter *iter)
3548 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3549 int rw = iov_iter_rw(iter);
3551 return (test_opt(sbi, LFS) && (rw == WRITE) &&
3552 !block_unaligned_IO(inode, iocb, iter));
3555 static inline bool f2fs_force_buffered_io(struct inode *inode,
3556 struct kiocb *iocb, struct iov_iter *iter)
3558 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3559 int rw = iov_iter_rw(iter);
3561 if (f2fs_post_read_required(inode))
3566 * for blkzoned device, fallback direct IO to buffered IO, so
3567 * all IOs can be serialized by log-structured write.
3569 if (f2fs_sb_has_blkzoned(sbi->sb))
3571 if (test_opt(sbi, LFS) && (rw == WRITE) &&
3572 block_unaligned_IO(inode, iocb, iter))
3574 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
3580 #ifdef CONFIG_F2FS_FAULT_INJECTION
3581 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
3584 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
3589 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
3592 if (f2fs_sb_has_quota_ino(sbi->sb))
3594 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
3595 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
3596 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])