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>
26 #include <linux/writeback.h>
27 #include <linux/overflow.h>
29 #define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION)
30 #include <linux/fscrypt.h>
32 #ifdef CONFIG_F2FS_CHECK_FS
33 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
35 #define f2fs_bug_on(sbi, condition) \
37 if (unlikely(condition)) { \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
63 #ifdef CONFIG_F2FS_FAULT_INJECTION
64 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
66 struct f2fs_fault_info {
68 unsigned int inject_rate;
69 unsigned int inject_type;
72 extern const char *f2fs_fault_name[FAULT_MAX];
73 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
79 #define F2FS_MOUNT_BG_GC 0x00000001
80 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
81 #define F2FS_MOUNT_DISCARD 0x00000004
82 #define F2FS_MOUNT_NOHEAP 0x00000008
83 #define F2FS_MOUNT_XATTR_USER 0x00000010
84 #define F2FS_MOUNT_POSIX_ACL 0x00000020
85 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
86 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
87 #define F2FS_MOUNT_INLINE_DATA 0x00000100
88 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
89 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
90 #define F2FS_MOUNT_NOBARRIER 0x00000800
91 #define F2FS_MOUNT_FASTBOOT 0x00001000
92 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
93 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
94 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
95 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
96 #define F2FS_MOUNT_ADAPTIVE 0x00020000
97 #define F2FS_MOUNT_LFS 0x00040000
98 #define F2FS_MOUNT_USRQUOTA 0x00080000
99 #define F2FS_MOUNT_GRPQUOTA 0x00100000
100 #define F2FS_MOUNT_PRJQUOTA 0x00200000
101 #define F2FS_MOUNT_QUOTA 0x00400000
102 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
103 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
104 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
106 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
107 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
108 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
109 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
111 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
112 typecheck(unsigned long long, b) && \
113 ((long long)((a) - (b)) > 0))
115 typedef u32 block_t; /*
116 * should not change u32, since it is the on-disk block
117 * address format, __le32.
121 struct f2fs_mount_info {
123 int write_io_size_bits; /* Write IO size bits */
124 block_t root_reserved_blocks; /* root reserved blocks */
125 kuid_t s_resuid; /* reserved blocks for uid */
126 kgid_t s_resgid; /* reserved blocks for gid */
127 int active_logs; /* # of active logs */
128 int inline_xattr_size; /* inline xattr size */
129 #ifdef CONFIG_F2FS_FAULT_INJECTION
130 struct f2fs_fault_info fault_info; /* For fault injection */
133 /* Names of quota files with journalled quota */
134 char *s_qf_names[MAXQUOTAS];
135 int s_jquota_fmt; /* Format of quota to use */
137 /* For which write hints are passed down to block layer */
139 int alloc_mode; /* segment allocation policy */
140 int fsync_mode; /* fsync policy */
141 bool test_dummy_encryption; /* test dummy encryption */
144 #define F2FS_FEATURE_ENCRYPT 0x0001
145 #define F2FS_FEATURE_BLKZONED 0x0002
146 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
147 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
148 #define F2FS_FEATURE_PRJQUOTA 0x0010
149 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
150 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
151 #define F2FS_FEATURE_QUOTA_INO 0x0080
152 #define F2FS_FEATURE_INODE_CRTIME 0x0100
153 #define F2FS_FEATURE_LOST_FOUND 0x0200
154 #define F2FS_FEATURE_VERITY 0x0400 /* reserved */
155 #define F2FS_FEATURE_SB_CHKSUM 0x0800
157 #define __F2FS_HAS_FEATURE(raw_super, mask) \
158 ((raw_super->feature & cpu_to_le32(mask)) != 0)
159 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
160 #define F2FS_SET_FEATURE(sbi, mask) \
161 (sbi->raw_super->feature |= cpu_to_le32(mask))
162 #define F2FS_CLEAR_FEATURE(sbi, mask) \
163 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
166 #define REQ_OP_READ READ
167 #define REQ_OP_WRITE WRITE
168 #define bio_op(bio) ((bio)->bi_rw & 1)
170 static inline void bio_set_op_attrs(struct bio *bio, unsigned op,
173 bio->bi_rw = op | op_flags;
176 static inline int wbc_to_write_flags(struct writeback_control *wbc)
178 if (wbc->sync_mode == WB_SYNC_ALL)
179 return REQ_SYNC | REQ_NOIDLE;
184 * wq_has_sleeper - check if there are any waiting processes
185 * @wq: wait queue head
187 * Returns true if wq has waiting processes
189 * Please refer to the comment for waitqueue_active.
191 static inline bool wq_has_sleeper(wait_queue_head_t *wq)
194 * We need to be sure we are in sync with the
195 * add_wait_queue modifications to the wait queue.
197 * This memory barrier should be paired with one on the
201 return waitqueue_active(wq);
204 static inline void inode_nohighmem(struct inode *inode)
206 mapping_set_gfp_mask(inode->i_mapping, GFP_USER);
210 * current_time - Return FS time
213 * Return the current time truncated to the time granularity supported by
216 * Note that inode and inode->sb cannot be NULL.
217 * Otherwise, the function warns and returns time without truncation.
219 static inline struct timespec current_time(struct inode *inode)
221 struct timespec now = current_kernel_time();
223 if (unlikely(!inode->i_sb)) {
224 WARN(1, "current_time() called with uninitialized super_block in the inode");
228 return timespec_trunc(now, inode->i_sb->s_time_gran);
232 * Default values for user and/or group using reserved blocks
234 #define F2FS_DEF_RESUID 0
235 #define F2FS_DEF_RESGID 0
238 * For checkpoint manager
245 #define CP_UMOUNT 0x00000001
246 #define CP_FASTBOOT 0x00000002
247 #define CP_SYNC 0x00000004
248 #define CP_RECOVERY 0x00000008
249 #define CP_DISCARD 0x00000010
250 #define CP_TRIMMED 0x00000020
251 #define CP_PAUSE 0x00000040
253 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
254 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
255 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
256 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
257 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
258 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
259 #define DEF_CP_INTERVAL 60 /* 60 secs */
260 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
261 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
262 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
263 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
273 * indicate meta/data type
286 /* for the list of ino */
288 ORPHAN_INO, /* for orphan ino list */
289 APPEND_INO, /* for append ino list */
290 UPDATE_INO, /* for update ino list */
291 TRANS_DIR_INO, /* for trasactions dir ino list */
292 FLUSH_INO, /* for multiple device flushing */
293 MAX_INO_ENTRY, /* max. list */
297 struct list_head list; /* list head */
298 nid_t ino; /* inode number */
299 unsigned int dirty_device; /* dirty device bitmap */
302 /* for the list of inodes to be GCed */
304 struct list_head list; /* list head */
305 struct inode *inode; /* vfs inode pointer */
308 struct fsync_node_entry {
309 struct list_head list; /* list head */
310 struct page *page; /* warm node page pointer */
311 unsigned int seq_id; /* sequence id */
314 /* for the bitmap indicate blocks to be discarded */
315 struct discard_entry {
316 struct list_head list; /* list head */
317 block_t start_blkaddr; /* start blockaddr of current segment */
318 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
321 /* default discard granularity of inner discard thread, unit: block count */
322 #define DEFAULT_DISCARD_GRANULARITY 16
324 /* max discard pend list number */
325 #define MAX_PLIST_NUM 512
326 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
327 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
330 D_PREP, /* initial */
331 D_PARTIAL, /* partially submitted */
332 D_SUBMIT, /* all submitted */
333 D_DONE, /* finished */
336 struct discard_info {
337 block_t lstart; /* logical start address */
338 block_t len; /* length */
339 block_t start; /* actual start address in dev */
343 struct rb_node rb_node; /* rb node located in rb-tree */
346 block_t lstart; /* logical start address */
347 block_t len; /* length */
348 block_t start; /* actual start address in dev */
350 struct discard_info di; /* discard info */
353 struct list_head list; /* command list */
354 struct completion wait; /* compleation */
355 struct block_device *bdev; /* bdev */
356 unsigned short ref; /* reference count */
357 unsigned char state; /* state */
358 unsigned char queued; /* queued discard */
359 int error; /* bio error */
360 spinlock_t lock; /* for state/bio_ref updating */
361 unsigned short bio_ref; /* bio reference count */
372 struct discard_policy {
373 int type; /* type of discard */
374 unsigned int min_interval; /* used for candidates exist */
375 unsigned int mid_interval; /* used for device busy */
376 unsigned int max_interval; /* used for candidates not exist */
377 unsigned int max_requests; /* # of discards issued per round */
378 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
379 bool io_aware; /* issue discard in idle time */
380 bool sync; /* submit discard with REQ_SYNC flag */
381 bool ordered; /* issue discard by lba order */
382 unsigned int granularity; /* discard granularity */
383 int timeout; /* discard timeout for put_super */
386 struct discard_cmd_control {
387 struct task_struct *f2fs_issue_discard; /* discard thread */
388 struct list_head entry_list; /* 4KB discard entry list */
389 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
390 struct list_head wait_list; /* store on-flushing entries */
391 struct list_head fstrim_list; /* in-flight discard from fstrim */
392 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
393 unsigned int discard_wake; /* to wake up discard thread */
394 struct mutex cmd_lock;
395 unsigned int nr_discards; /* # of discards in the list */
396 unsigned int max_discards; /* max. discards to be issued */
397 unsigned int discard_granularity; /* discard granularity */
398 unsigned int undiscard_blks; /* # of undiscard blocks */
399 unsigned int next_pos; /* next discard position */
400 atomic_t issued_discard; /* # of issued discard */
401 atomic_t queued_discard; /* # of queued discard */
402 atomic_t discard_cmd_cnt; /* # of cached cmd count */
403 struct rb_root root; /* root of discard rb-tree */
404 bool rbtree_check; /* config for consistence check */
407 /* for the list of fsync inodes, used only during recovery */
408 struct fsync_inode_entry {
409 struct list_head list; /* list head */
410 struct inode *inode; /* vfs inode pointer */
411 block_t blkaddr; /* block address locating the last fsync */
412 block_t last_dentry; /* block address locating the last dentry */
415 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
416 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
418 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
419 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
420 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
421 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
423 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
424 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
426 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
428 int before = nats_in_cursum(journal);
430 journal->n_nats = cpu_to_le16(before + i);
434 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
436 int before = sits_in_cursum(journal);
438 journal->n_sits = cpu_to_le16(before + i);
442 static inline bool __has_cursum_space(struct f2fs_journal *journal,
445 if (type == NAT_JOURNAL)
446 return size <= MAX_NAT_JENTRIES(journal);
447 return size <= MAX_SIT_JENTRIES(journal);
453 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
454 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
455 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
457 #define F2FS_IOCTL_MAGIC 0xf5
458 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
459 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
460 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
461 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
462 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
463 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
464 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
465 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
466 struct f2fs_defragment)
467 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
468 struct f2fs_move_range)
469 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
470 struct f2fs_flush_device)
471 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
472 struct f2fs_gc_range)
473 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
474 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
475 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
476 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
478 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
479 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
480 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
483 * should be same as XFS_IOC_GOINGDOWN.
484 * Flags for going down operation used by FS_IOC_GOINGDOWN
486 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
487 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
488 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
489 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
490 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
491 #define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
493 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
495 * ioctl commands in 32 bit emulation
497 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
498 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
499 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
502 struct f2fs_gc_range {
508 struct f2fs_defragment {
513 struct f2fs_move_range {
514 u32 dst_fd; /* destination fd */
515 u64 pos_in; /* start position in src_fd */
516 u64 pos_out; /* start position in dst_fd */
517 u64 len; /* size to move */
520 struct f2fs_flush_device {
521 u32 dev_num; /* device number to flush */
522 u32 segments; /* # of segments to flush */
525 /* for inline stuff */
526 #define DEF_INLINE_RESERVED_SIZE 1
527 static inline int get_extra_isize(struct inode *inode);
528 static inline int get_inline_xattr_addrs(struct inode *inode);
529 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
530 (CUR_ADDRS_PER_INODE(inode) - \
531 get_inline_xattr_addrs(inode) - \
532 DEF_INLINE_RESERVED_SIZE))
535 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
536 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
538 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
539 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
540 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
541 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
542 NR_INLINE_DENTRY(inode) + \
543 INLINE_DENTRY_BITMAP_SIZE(inode)))
546 * For INODE and NODE manager
548 /* for directory operations */
549 struct f2fs_dentry_ptr {
552 struct f2fs_dir_entry *dentry;
553 __u8 (*filename)[F2FS_SLOT_LEN];
558 static inline void make_dentry_ptr_block(struct inode *inode,
559 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
562 d->max = NR_DENTRY_IN_BLOCK;
563 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
564 d->bitmap = t->dentry_bitmap;
565 d->dentry = t->dentry;
566 d->filename = t->filename;
569 static inline void make_dentry_ptr_inline(struct inode *inode,
570 struct f2fs_dentry_ptr *d, void *t)
572 int entry_cnt = NR_INLINE_DENTRY(inode);
573 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
574 int reserved_size = INLINE_RESERVED_SIZE(inode);
578 d->nr_bitmap = bitmap_size;
580 d->dentry = t + bitmap_size + reserved_size;
581 d->filename = t + bitmap_size + reserved_size +
582 SIZE_OF_DIR_ENTRY * entry_cnt;
586 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
587 * as its node offset to distinguish from index node blocks.
588 * But some bits are used to mark the node block.
590 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
593 ALLOC_NODE, /* allocate a new node page if needed */
594 LOOKUP_NODE, /* look up a node without readahead */
596 * look up a node with readahead called
601 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
603 /* maximum retry quota flush count */
604 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
606 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
608 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
610 /* for in-memory extent cache entry */
611 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
613 /* number of extent info in extent cache we try to shrink */
614 #define EXTENT_CACHE_SHRINK_NUMBER 128
617 struct rb_node rb_node; /* rb node located in rb-tree */
618 unsigned int ofs; /* start offset of the entry */
619 unsigned int len; /* length of the entry */
623 unsigned int fofs; /* start offset in a file */
624 unsigned int len; /* length of the extent */
625 u32 blk; /* start block address of the extent */
629 struct rb_node rb_node; /* rb node located in rb-tree */
630 struct extent_info ei; /* extent info */
631 struct list_head list; /* node in global extent list of sbi */
632 struct extent_tree *et; /* extent tree pointer */
636 nid_t ino; /* inode number */
637 struct rb_root root; /* root of extent info rb-tree */
638 struct extent_node *cached_en; /* recently accessed extent node */
639 struct extent_info largest; /* largested extent info */
640 struct list_head list; /* to be used by sbi->zombie_list */
641 rwlock_t lock; /* protect extent info rb-tree */
642 atomic_t node_cnt; /* # of extent node in rb-tree*/
643 bool largest_updated; /* largest extent updated */
647 * This structure is taken from ext4_map_blocks.
649 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
651 #define F2FS_MAP_NEW (1 << BH_New)
652 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
653 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
654 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
657 struct f2fs_map_blocks {
661 unsigned int m_flags;
662 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
663 pgoff_t *m_next_extent; /* point to next possible extent */
665 bool m_may_create; /* indicate it is from write path */
668 /* for flag in get_data_block */
670 F2FS_GET_BLOCK_DEFAULT,
671 F2FS_GET_BLOCK_FIEMAP,
674 F2FS_GET_BLOCK_PRE_DIO,
675 F2FS_GET_BLOCK_PRE_AIO,
676 F2FS_GET_BLOCK_PRECACHE,
680 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
682 #define FADVISE_COLD_BIT 0x01
683 #define FADVISE_LOST_PINO_BIT 0x02
684 #define FADVISE_ENCRYPT_BIT 0x04
685 #define FADVISE_ENC_NAME_BIT 0x08
686 #define FADVISE_KEEP_SIZE_BIT 0x10
687 #define FADVISE_HOT_BIT 0x20
688 #define FADVISE_VERITY_BIT 0x40 /* reserved */
690 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
692 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
693 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
694 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
695 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
696 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
697 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
698 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
699 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
700 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
701 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
702 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
703 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
704 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
705 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
706 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
707 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
709 #define DEF_DIR_LEVEL 0
717 struct f2fs_inode_info {
718 struct inode vfs_inode; /* serve a vfs inode */
719 unsigned long i_flags; /* keep an inode flags for ioctl */
720 unsigned char i_advise; /* use to give file attribute hints */
721 unsigned char i_dir_level; /* use for dentry level for large dir */
722 unsigned int i_current_depth; /* only for directory depth */
723 /* for gc failure statistic */
724 unsigned int i_gc_failures[MAX_GC_FAILURE];
725 unsigned int i_pino; /* parent inode number */
726 umode_t i_acl_mode; /* keep file acl mode temporarily */
728 /* Use below internally in f2fs*/
729 unsigned long flags; /* use to pass per-file flags */
730 struct rw_semaphore i_sem; /* protect fi info */
731 atomic_t dirty_pages; /* # of dirty pages */
732 f2fs_hash_t chash; /* hash value of given file name */
733 unsigned int clevel; /* maximum level of given file name */
734 struct task_struct *task; /* lookup and create consistency */
735 struct task_struct *cp_task; /* separate cp/wb IO stats*/
736 nid_t i_xattr_nid; /* node id that contains xattrs */
737 loff_t last_disk_size; /* lastly written file size */
740 struct dquot *i_dquot[MAXQUOTAS];
742 /* quota space reservation, managed internally by quota code */
743 qsize_t i_reserved_quota;
745 struct list_head dirty_list; /* dirty list for dirs and files */
746 struct list_head gdirty_list; /* linked in global dirty list */
747 struct list_head inmem_ilist; /* list for inmem inodes */
748 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
749 struct task_struct *inmem_task; /* store inmemory task */
750 struct mutex inmem_lock; /* lock for inmemory pages */
751 struct extent_tree *extent_tree; /* cached extent_tree entry */
753 /* avoid racing between foreground op and gc */
754 struct rw_semaphore i_gc_rwsem[2];
755 struct rw_semaphore i_mmap_sem;
756 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
758 int i_extra_isize; /* size of extra space located in i_addr */
759 kprojid_t i_projid; /* id for project quota */
760 int i_inline_xattr_size; /* inline xattr size */
761 struct timespec i_crtime; /* inode creation time */
762 struct timespec i_disk_time[4]; /* inode disk times */
765 static inline void get_extent_info(struct extent_info *ext,
766 struct f2fs_extent *i_ext)
768 ext->fofs = le32_to_cpu(i_ext->fofs);
769 ext->blk = le32_to_cpu(i_ext->blk);
770 ext->len = le32_to_cpu(i_ext->len);
773 static inline void set_raw_extent(struct extent_info *ext,
774 struct f2fs_extent *i_ext)
776 i_ext->fofs = cpu_to_le32(ext->fofs);
777 i_ext->blk = cpu_to_le32(ext->blk);
778 i_ext->len = cpu_to_le32(ext->len);
781 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
782 u32 blk, unsigned int len)
789 static inline bool __is_discard_mergeable(struct discard_info *back,
790 struct discard_info *front, unsigned int max_len)
792 return (back->lstart + back->len == front->lstart) &&
793 (back->len + front->len <= max_len);
796 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
797 struct discard_info *back, unsigned int max_len)
799 return __is_discard_mergeable(back, cur, max_len);
802 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
803 struct discard_info *front, unsigned int max_len)
805 return __is_discard_mergeable(cur, front, max_len);
808 static inline bool __is_extent_mergeable(struct extent_info *back,
809 struct extent_info *front)
811 return (back->fofs + back->len == front->fofs &&
812 back->blk + back->len == front->blk);
815 static inline bool __is_back_mergeable(struct extent_info *cur,
816 struct extent_info *back)
818 return __is_extent_mergeable(back, cur);
821 static inline bool __is_front_mergeable(struct extent_info *cur,
822 struct extent_info *front)
824 return __is_extent_mergeable(cur, front);
827 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
828 static inline void __try_update_largest_extent(struct extent_tree *et,
829 struct extent_node *en)
831 if (en->ei.len > et->largest.len) {
832 et->largest = en->ei;
833 et->largest_updated = true;
838 * For free nid management
841 FREE_NID, /* newly added to free nid list */
842 PREALLOC_NID, /* it is preallocated */
846 struct f2fs_nm_info {
847 block_t nat_blkaddr; /* base disk address of NAT */
848 nid_t max_nid; /* maximum possible node ids */
849 nid_t available_nids; /* # of available node ids */
850 nid_t next_scan_nid; /* the next nid to be scanned */
851 unsigned int ram_thresh; /* control the memory footprint */
852 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
853 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
855 /* NAT cache management */
856 struct radix_tree_root nat_root;/* root of the nat entry cache */
857 struct radix_tree_root nat_set_root;/* root of the nat set cache */
858 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
859 struct list_head nat_entries; /* cached nat entry list (clean) */
860 spinlock_t nat_list_lock; /* protect clean nat entry list */
861 unsigned int nat_cnt; /* the # of cached nat entries */
862 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
863 unsigned int nat_blocks; /* # of nat blocks */
865 /* free node ids management */
866 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
867 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
868 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
869 spinlock_t nid_list_lock; /* protect nid lists ops */
870 struct mutex build_lock; /* lock for build free nids */
871 unsigned char **free_nid_bitmap;
872 unsigned char *nat_block_bitmap;
873 unsigned short *free_nid_count; /* free nid count of NAT block */
876 char *nat_bitmap; /* NAT bitmap pointer */
878 unsigned int nat_bits_blocks; /* # of nat bits blocks */
879 unsigned char *nat_bits; /* NAT bits blocks */
880 unsigned char *full_nat_bits; /* full NAT pages */
881 unsigned char *empty_nat_bits; /* empty NAT pages */
882 #ifdef CONFIG_F2FS_CHECK_FS
883 char *nat_bitmap_mir; /* NAT bitmap mirror */
885 int bitmap_size; /* bitmap size */
889 * this structure is used as one of function parameters.
890 * all the information are dedicated to a given direct node block determined
891 * by the data offset in a file.
893 struct dnode_of_data {
894 struct inode *inode; /* vfs inode pointer */
895 struct page *inode_page; /* its inode page, NULL is possible */
896 struct page *node_page; /* cached direct node page */
897 nid_t nid; /* node id of the direct node block */
898 unsigned int ofs_in_node; /* data offset in the node page */
899 bool inode_page_locked; /* inode page is locked or not */
900 bool node_changed; /* is node block changed */
901 char cur_level; /* level of hole node page */
902 char max_level; /* level of current page located */
903 block_t data_blkaddr; /* block address of the node block */
906 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
907 struct page *ipage, struct page *npage, nid_t nid)
909 memset(dn, 0, sizeof(*dn));
911 dn->inode_page = ipage;
912 dn->node_page = npage;
919 * By default, there are 6 active log areas across the whole main area.
920 * When considering hot and cold data separation to reduce cleaning overhead,
921 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
923 * In the current design, you should not change the numbers intentionally.
924 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
925 * logs individually according to the underlying devices. (default: 6)
926 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
927 * data and 8 for node logs.
929 #define NR_CURSEG_DATA_TYPE (3)
930 #define NR_CURSEG_NODE_TYPE (3)
931 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
934 CURSEG_HOT_DATA = 0, /* directory entry blocks */
935 CURSEG_WARM_DATA, /* data blocks */
936 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
937 CURSEG_HOT_NODE, /* direct node blocks of directory files */
938 CURSEG_WARM_NODE, /* direct node blocks of normal files */
939 CURSEG_COLD_NODE, /* indirect node blocks */
944 struct completion wait;
945 struct llist_node llnode;
950 struct flush_cmd_control {
951 struct task_struct *f2fs_issue_flush; /* flush thread */
952 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
953 atomic_t issued_flush; /* # of issued flushes */
954 atomic_t queued_flush; /* # of queued flushes */
955 struct llist_head issue_list; /* list for command issue */
956 struct llist_node *dispatch_list; /* list for command dispatch */
959 struct f2fs_sm_info {
960 struct sit_info *sit_info; /* whole segment information */
961 struct free_segmap_info *free_info; /* free segment information */
962 struct dirty_seglist_info *dirty_info; /* dirty segment information */
963 struct curseg_info *curseg_array; /* active segment information */
965 struct rw_semaphore curseg_lock; /* for preventing curseg change */
967 block_t seg0_blkaddr; /* block address of 0'th segment */
968 block_t main_blkaddr; /* start block address of main area */
969 block_t ssa_blkaddr; /* start block address of SSA area */
971 unsigned int segment_count; /* total # of segments */
972 unsigned int main_segments; /* # of segments in main area */
973 unsigned int reserved_segments; /* # of reserved segments */
974 unsigned int ovp_segments; /* # of overprovision segments */
976 /* a threshold to reclaim prefree segments */
977 unsigned int rec_prefree_segments;
979 /* for batched trimming */
980 unsigned int trim_sections; /* # of sections to trim */
982 struct list_head sit_entry_set; /* sit entry set list */
984 unsigned int ipu_policy; /* in-place-update policy */
985 unsigned int min_ipu_util; /* in-place-update threshold */
986 unsigned int min_fsync_blocks; /* threshold for fsync */
987 unsigned int min_seq_blocks; /* threshold for sequential blocks */
988 unsigned int min_hot_blocks; /* threshold for hot block allocation */
989 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
991 /* for flush command control */
992 struct flush_cmd_control *fcc_info;
994 /* for discard command control */
995 struct discard_cmd_control *dcc_info;
1002 * COUNT_TYPE for monitoring
1004 * f2fs monitors the number of several block types such as on-writeback,
1005 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1007 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1027 * The below are the page types of bios used in submit_bio().
1028 * The available types are:
1029 * DATA User data pages. It operates as async mode.
1030 * NODE Node pages. It operates as async mode.
1031 * META FS metadata pages such as SIT, NAT, CP.
1032 * NR_PAGE_TYPE The number of page types.
1033 * META_FLUSH Make sure the previous pages are written
1034 * with waiting the bio's completion
1035 * ... Only can be used with META.
1037 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1044 INMEM, /* the below types are used by tracepoints only. */
1053 HOT = 0, /* must be zero for meta bio */
1059 enum need_lock_type {
1065 enum cp_reason_type {
1079 APP_DIRECT_IO, /* app direct IOs */
1080 APP_BUFFERED_IO, /* app buffered IOs */
1081 APP_WRITE_IO, /* app write IOs */
1082 APP_MAPPED_IO, /* app mapped IOs */
1083 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1084 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1085 FS_META_IO, /* meta IOs from kworker/reclaimer */
1086 FS_GC_DATA_IO, /* data IOs from forground gc */
1087 FS_GC_NODE_IO, /* node IOs from forground gc */
1088 FS_CP_DATA_IO, /* data IOs from checkpoint */
1089 FS_CP_NODE_IO, /* node IOs from checkpoint */
1090 FS_CP_META_IO, /* meta IOs from checkpoint */
1091 FS_DISCARD, /* discard */
1095 struct f2fs_io_info {
1096 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1097 nid_t ino; /* inode number */
1098 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1099 enum temp_type temp; /* contains HOT/WARM/COLD */
1100 int op; /* contains REQ_OP_ */
1101 int op_flags; /* req_flag_bits */
1102 block_t new_blkaddr; /* new block address to be written */
1103 block_t old_blkaddr; /* old block address before Cow */
1104 struct page *page; /* page to be written */
1105 struct page *encrypted_page; /* encrypted page */
1106 struct list_head list; /* serialize IOs */
1107 bool submitted; /* indicate IO submission */
1108 int need_lock; /* indicate we need to lock cp_rwsem */
1109 bool in_list; /* indicate fio is in io_list */
1110 bool is_meta; /* indicate borrow meta inode mapping or not */
1111 bool retry; /* need to reallocate block address */
1112 enum iostat_type io_type; /* io type */
1113 struct writeback_control *io_wbc; /* writeback control */
1114 unsigned char version; /* version of the node */
1117 #define is_read_io(rw) ((rw) == READ)
1118 struct f2fs_bio_info {
1119 struct f2fs_sb_info *sbi; /* f2fs superblock */
1120 struct bio *bio; /* bios to merge */
1121 sector_t last_block_in_bio; /* last block number */
1122 struct f2fs_io_info fio; /* store buffered io info. */
1123 struct rw_semaphore io_rwsem; /* blocking op for bio */
1124 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1125 struct list_head io_list; /* track fios */
1128 #define FDEV(i) (sbi->devs[i])
1129 #define RDEV(i) (raw_super->devs[i])
1130 struct f2fs_dev_info {
1131 struct block_device *bdev;
1132 char path[MAX_PATH_LEN];
1133 unsigned int total_segments;
1136 #ifdef CONFIG_BLK_DEV_ZONED
1137 unsigned int nr_blkz; /* Total number of zones */
1138 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1143 DIR_INODE, /* for dirty dir inode */
1144 FILE_INODE, /* for dirty regular/symlink inode */
1145 DIRTY_META, /* for all dirtied inode metadata */
1146 ATOMIC_FILE, /* for all atomic files */
1150 /* for inner inode cache management */
1151 struct inode_management {
1152 struct radix_tree_root ino_root; /* ino entry array */
1153 spinlock_t ino_lock; /* for ino entry lock */
1154 struct list_head ino_list; /* inode list head */
1155 unsigned long ino_num; /* number of entries */
1158 /* For s_flag in struct f2fs_sb_info */
1160 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1161 SBI_IS_CLOSE, /* specify unmounting */
1162 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1163 SBI_POR_DOING, /* recovery is doing or not */
1164 SBI_NEED_SB_WRITE, /* need to recover superblock */
1165 SBI_NEED_CP, /* need to checkpoint */
1166 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1167 SBI_IS_RECOVERED, /* recovered orphan/data */
1168 SBI_CP_DISABLED, /* CP was disabled last mount */
1169 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1170 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1171 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1172 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1181 UMOUNT_DISCARD_TIMEOUT,
1193 WHINT_MODE_OFF, /* not pass down write hints */
1194 WHINT_MODE_USER, /* try to pass down hints given by users */
1195 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1199 ALLOC_MODE_DEFAULT, /* stay default */
1200 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1204 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1205 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1206 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1209 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1210 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1211 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1213 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1216 struct f2fs_sb_info {
1217 struct super_block *sb; /* pointer to VFS super block */
1218 struct proc_dir_entry *s_proc; /* proc entry */
1219 struct f2fs_super_block *raw_super; /* raw super block pointer */
1220 struct rw_semaphore sb_lock; /* lock for raw super block */
1221 int valid_super_block; /* valid super block no */
1222 unsigned long s_flag; /* flags for sbi */
1223 struct mutex writepages; /* mutex for writepages() */
1225 #ifdef CONFIG_BLK_DEV_ZONED
1226 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1227 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1230 /* for node-related operations */
1231 struct f2fs_nm_info *nm_info; /* node manager */
1232 struct inode *node_inode; /* cache node blocks */
1234 /* for segment-related operations */
1235 struct f2fs_sm_info *sm_info; /* segment manager */
1237 /* for bio operations */
1238 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1239 /* keep migration IO order for LFS mode */
1240 struct rw_semaphore io_order_lock;
1241 mempool_t *write_io_dummy; /* Dummy pages */
1243 /* for checkpoint */
1244 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1245 int cur_cp_pack; /* remain current cp pack */
1246 spinlock_t cp_lock; /* for flag in ckpt */
1247 struct inode *meta_inode; /* cache meta blocks */
1248 struct mutex cp_mutex; /* checkpoint procedure lock */
1249 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1250 struct rw_semaphore node_write; /* locking node writes */
1251 struct rw_semaphore node_change; /* locking node change */
1252 wait_queue_head_t cp_wait;
1253 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1254 long interval_time[MAX_TIME]; /* to store thresholds */
1256 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1258 spinlock_t fsync_node_lock; /* for node entry lock */
1259 struct list_head fsync_node_list; /* node list head */
1260 unsigned int fsync_seg_id; /* sequence id */
1261 unsigned int fsync_node_num; /* number of node entries */
1263 /* for orphan inode, use 0'th array */
1264 unsigned int max_orphans; /* max orphan inodes */
1266 /* for inode management */
1267 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1268 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1270 /* for extent tree cache */
1271 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1272 struct mutex extent_tree_lock; /* locking extent radix tree */
1273 struct list_head extent_list; /* lru list for shrinker */
1274 spinlock_t extent_lock; /* locking extent lru list */
1275 atomic_t total_ext_tree; /* extent tree count */
1276 struct list_head zombie_list; /* extent zombie tree list */
1277 atomic_t total_zombie_tree; /* extent zombie tree count */
1278 atomic_t total_ext_node; /* extent info count */
1280 /* basic filesystem units */
1281 unsigned int log_sectors_per_block; /* log2 sectors per block */
1282 unsigned int log_blocksize; /* log2 block size */
1283 unsigned int blocksize; /* block size */
1284 unsigned int root_ino_num; /* root inode number*/
1285 unsigned int node_ino_num; /* node inode number*/
1286 unsigned int meta_ino_num; /* meta inode number*/
1287 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1288 unsigned int blocks_per_seg; /* blocks per segment */
1289 unsigned int segs_per_sec; /* segments per section */
1290 unsigned int secs_per_zone; /* sections per zone */
1291 unsigned int total_sections; /* total section count */
1292 unsigned int total_node_count; /* total node block count */
1293 unsigned int total_valid_node_count; /* valid node block count */
1294 loff_t max_file_blocks; /* max block index of file */
1295 int dir_level; /* directory level */
1296 int readdir_ra; /* readahead inode in readdir */
1298 block_t user_block_count; /* # of user blocks */
1299 block_t total_valid_block_count; /* # of valid blocks */
1300 block_t discard_blks; /* discard command candidats */
1301 block_t last_valid_block_count; /* for recovery */
1302 block_t reserved_blocks; /* configurable reserved blocks */
1303 block_t current_reserved_blocks; /* current reserved blocks */
1305 /* Additional tracking for no checkpoint mode */
1306 block_t unusable_block_count; /* # of blocks saved by last cp */
1308 unsigned int nquota_files; /* # of quota sysfile */
1310 /* # of pages, see count_type */
1311 atomic_t nr_pages[NR_COUNT_TYPE];
1312 /* # of allocated blocks */
1313 struct percpu_counter alloc_valid_block_count;
1315 /* writeback control */
1316 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1318 /* valid inode count */
1319 struct percpu_counter total_valid_inode_count;
1321 struct f2fs_mount_info mount_opt; /* mount options */
1323 /* for cleaning operations */
1324 struct mutex gc_mutex; /* mutex for GC */
1325 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1326 unsigned int cur_victim_sec; /* current victim section num */
1327 unsigned int gc_mode; /* current GC state */
1328 unsigned int next_victim_seg[2]; /* next segment in victim section */
1329 /* for skip statistic */
1330 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1331 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1333 /* threshold for gc trials on pinned files */
1334 u64 gc_pin_file_threshold;
1336 /* maximum # of trials to find a victim segment for SSR and GC */
1337 unsigned int max_victim_search;
1338 /* migration granularity of garbage collection, unit: segment */
1339 unsigned int migration_granularity;
1342 * for stat information.
1343 * one is for the LFS mode, and the other is for the SSR mode.
1345 #ifdef CONFIG_F2FS_STAT_FS
1346 struct f2fs_stat_info *stat_info; /* FS status information */
1347 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1348 unsigned int segment_count[2]; /* # of allocated segments */
1349 unsigned int block_count[2]; /* # of allocated blocks */
1350 atomic_t inplace_count; /* # of inplace update */
1351 atomic64_t total_hit_ext; /* # of lookup extent cache */
1352 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1353 atomic64_t read_hit_largest; /* # of hit largest extent node */
1354 atomic64_t read_hit_cached; /* # of hit cached extent node */
1355 atomic_t inline_xattr; /* # of inline_xattr inodes */
1356 atomic_t inline_inode; /* # of inline_data inodes */
1357 atomic_t inline_dir; /* # of inline_dentry inodes */
1358 atomic_t aw_cnt; /* # of atomic writes */
1359 atomic_t vw_cnt; /* # of volatile writes */
1360 atomic_t max_aw_cnt; /* max # of atomic writes */
1361 atomic_t max_vw_cnt; /* max # of volatile writes */
1362 int bg_gc; /* background gc calls */
1363 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1364 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1365 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1367 spinlock_t stat_lock; /* lock for stat operations */
1369 /* For app/fs IO statistics */
1370 spinlock_t iostat_lock;
1371 unsigned long long write_iostat[NR_IO_TYPE];
1374 /* For sysfs suppport */
1375 struct kobject s_kobj;
1376 struct completion s_kobj_unregister;
1378 /* For shrinker support */
1379 struct list_head s_list;
1380 int s_ndevs; /* number of devices */
1381 struct f2fs_dev_info *devs; /* for device list */
1382 unsigned int dirty_device; /* for checkpoint data flush */
1383 spinlock_t dev_lock; /* protect dirty_device */
1384 struct mutex umount_mutex;
1385 unsigned int shrinker_run_no;
1387 /* For write statistics */
1388 u64 sectors_written_start;
1391 /* Reference to checksum algorithm driver via cryptoapi */
1392 struct crypto_shash *s_chksum_driver;
1394 /* Precomputed FS UUID checksum for seeding other checksums */
1395 __u32 s_chksum_seed;
1398 struct f2fs_private_dio {
1399 struct inode *inode;
1401 bio_end_io_t *orig_end_io;
1405 #ifdef CONFIG_F2FS_FAULT_INJECTION
1406 #define f2fs_show_injection_info(type) \
1407 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \
1408 KERN_INFO, f2fs_fault_name[type], \
1409 __func__, __builtin_return_address(0))
1410 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1412 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1414 if (!ffi->inject_rate)
1417 if (!IS_FAULT_SET(ffi, type))
1420 atomic_inc(&ffi->inject_ops);
1421 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1422 atomic_set(&ffi->inject_ops, 0);
1428 #define f2fs_show_injection_info(type) do { } while (0)
1429 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1436 * Test if the mounted volume is a multi-device volume.
1437 * - For a single regular disk volume, sbi->s_ndevs is 0.
1438 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1439 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1441 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1443 return sbi->s_ndevs > 1;
1446 /* For write statistics. Suppose sector size is 512 bytes,
1447 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1449 #define BD_PART_WRITTEN(s) \
1450 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1451 (s)->sectors_written_start) >> 1)
1453 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1455 unsigned long now = jiffies;
1457 sbi->last_time[type] = now;
1459 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1460 if (type == REQ_TIME) {
1461 sbi->last_time[DISCARD_TIME] = now;
1462 sbi->last_time[GC_TIME] = now;
1466 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1468 unsigned long interval = sbi->interval_time[type] * HZ;
1470 return time_after(jiffies, sbi->last_time[type] + interval);
1473 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1476 unsigned long interval = sbi->interval_time[type] * HZ;
1477 unsigned int wait_ms = 0;
1480 delta = (sbi->last_time[type] + interval) - jiffies;
1482 wait_ms = jiffies_to_msecs(delta);
1490 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1491 const void *address, unsigned int length)
1494 struct shash_desc shash;
1499 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1501 desc.shash.tfm = sbi->s_chksum_driver;
1502 desc.shash.flags = 0;
1503 *(u32 *)desc.ctx = crc;
1505 err = crypto_shash_update(&desc.shash, address, length);
1508 return *(u32 *)desc.ctx;
1511 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1512 unsigned int length)
1514 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1517 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1518 void *buf, size_t buf_size)
1520 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1523 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1524 const void *address, unsigned int length)
1526 return __f2fs_crc32(sbi, crc, address, length);
1529 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1531 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1534 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1536 return sb->s_fs_info;
1539 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1541 return F2FS_SB(inode->i_sb);
1544 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1546 return F2FS_I_SB(mapping->host);
1549 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1551 return F2FS_M_SB(page->mapping);
1554 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1556 return (struct f2fs_super_block *)(sbi->raw_super);
1559 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1561 return (struct f2fs_checkpoint *)(sbi->ckpt);
1564 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1566 return (struct f2fs_node *)page_address(page);
1569 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1571 return &((struct f2fs_node *)page_address(page))->i;
1574 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1576 return (struct f2fs_nm_info *)(sbi->nm_info);
1579 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1581 return (struct f2fs_sm_info *)(sbi->sm_info);
1584 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1586 return (struct sit_info *)(SM_I(sbi)->sit_info);
1589 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1591 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1594 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1596 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1599 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1601 return sbi->meta_inode->i_mapping;
1604 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1606 return sbi->node_inode->i_mapping;
1609 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1611 return test_bit(type, &sbi->s_flag);
1614 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1616 set_bit(type, &sbi->s_flag);
1619 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1621 clear_bit(type, &sbi->s_flag);
1624 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1626 return le64_to_cpu(cp->checkpoint_ver);
1629 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1631 if (type < F2FS_MAX_QUOTAS)
1632 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1636 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1638 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1639 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1642 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1644 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1646 return ckpt_flags & f;
1649 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1651 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1654 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1656 unsigned int ckpt_flags;
1658 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1660 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1663 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1665 unsigned long flags;
1667 spin_lock_irqsave(&sbi->cp_lock, flags);
1668 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1669 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1672 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1674 unsigned int ckpt_flags;
1676 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1678 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1681 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1683 unsigned long flags;
1685 spin_lock_irqsave(&sbi->cp_lock, flags);
1686 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1687 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1690 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1692 unsigned long flags;
1695 * In order to re-enable nat_bits we need to call fsck.f2fs by
1696 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
1697 * so let's rely on regular fsck or unclean shutdown.
1701 spin_lock_irqsave(&sbi->cp_lock, flags);
1702 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1703 kvfree(NM_I(sbi)->nat_bits);
1704 NM_I(sbi)->nat_bits = NULL;
1706 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1709 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1710 struct cp_control *cpc)
1712 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1714 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1717 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1719 down_read(&sbi->cp_rwsem);
1722 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1724 return down_read_trylock(&sbi->cp_rwsem);
1727 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1729 up_read(&sbi->cp_rwsem);
1732 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1734 down_write(&sbi->cp_rwsem);
1737 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1739 up_write(&sbi->cp_rwsem);
1742 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1744 int reason = CP_SYNC;
1746 if (test_opt(sbi, FASTBOOT))
1747 reason = CP_FASTBOOT;
1748 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1753 static inline bool __remain_node_summaries(int reason)
1755 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1758 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1760 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1761 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1765 * Check whether the inode has blocks or not
1767 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1769 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1771 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1774 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1776 return ofs == XATTR_NODE_OFFSET;
1779 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1780 struct inode *inode, bool cap)
1784 if (!test_opt(sbi, RESERVE_ROOT))
1786 if (IS_NOQUOTA(inode))
1788 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1790 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1791 in_group_p(F2FS_OPTION(sbi).s_resgid))
1793 if (cap && capable(CAP_SYS_RESOURCE))
1798 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1799 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1800 struct inode *inode, blkcnt_t *count)
1802 blkcnt_t diff = 0, release = 0;
1803 block_t avail_user_block_count;
1806 ret = dquot_reserve_block(inode, *count);
1810 if (time_to_inject(sbi, FAULT_BLOCK)) {
1811 f2fs_show_injection_info(FAULT_BLOCK);
1817 * let's increase this in prior to actual block count change in order
1818 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1820 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1822 spin_lock(&sbi->stat_lock);
1823 sbi->total_valid_block_count += (block_t)(*count);
1824 avail_user_block_count = sbi->user_block_count -
1825 sbi->current_reserved_blocks;
1827 if (!__allow_reserved_blocks(sbi, inode, true))
1828 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1829 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1830 avail_user_block_count -= sbi->unusable_block_count;
1831 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1832 diff = sbi->total_valid_block_count - avail_user_block_count;
1837 sbi->total_valid_block_count -= diff;
1839 spin_unlock(&sbi->stat_lock);
1843 spin_unlock(&sbi->stat_lock);
1845 if (unlikely(release)) {
1846 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1847 dquot_release_reservation_block(inode, release);
1849 f2fs_i_blocks_write(inode, *count, true, true);
1853 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1854 dquot_release_reservation_block(inode, release);
1858 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
1859 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1860 struct inode *inode,
1863 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1865 spin_lock(&sbi->stat_lock);
1866 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1867 sbi->total_valid_block_count -= (block_t)count;
1868 if (sbi->reserved_blocks &&
1869 sbi->current_reserved_blocks < sbi->reserved_blocks)
1870 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1871 sbi->current_reserved_blocks + count);
1872 spin_unlock(&sbi->stat_lock);
1873 if (unlikely(inode->i_blocks < sectors)) {
1874 f2fs_msg(sbi->sb, KERN_WARNING,
1875 "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
1877 (unsigned long long)inode->i_blocks,
1878 (unsigned long long)sectors);
1879 set_sbi_flag(sbi, SBI_NEED_FSCK);
1882 f2fs_i_blocks_write(inode, count, false, true);
1885 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1887 atomic_inc(&sbi->nr_pages[count_type]);
1889 if (count_type == F2FS_DIRTY_DENTS ||
1890 count_type == F2FS_DIRTY_NODES ||
1891 count_type == F2FS_DIRTY_META ||
1892 count_type == F2FS_DIRTY_QDATA ||
1893 count_type == F2FS_DIRTY_IMETA)
1894 set_sbi_flag(sbi, SBI_IS_DIRTY);
1897 static inline void inode_inc_dirty_pages(struct inode *inode)
1899 atomic_inc(&F2FS_I(inode)->dirty_pages);
1900 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1901 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1902 if (IS_NOQUOTA(inode))
1903 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1906 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1908 atomic_dec(&sbi->nr_pages[count_type]);
1911 static inline void inode_dec_dirty_pages(struct inode *inode)
1913 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1914 !S_ISLNK(inode->i_mode))
1917 atomic_dec(&F2FS_I(inode)->dirty_pages);
1918 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1919 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1920 if (IS_NOQUOTA(inode))
1921 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1924 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1926 return atomic_read(&sbi->nr_pages[count_type]);
1929 static inline int get_dirty_pages(struct inode *inode)
1931 return atomic_read(&F2FS_I(inode)->dirty_pages);
1934 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1936 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1937 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1938 sbi->log_blocks_per_seg;
1940 return segs / sbi->segs_per_sec;
1943 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1945 return sbi->total_valid_block_count;
1948 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1950 return sbi->discard_blks;
1953 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1955 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1957 /* return NAT or SIT bitmap */
1958 if (flag == NAT_BITMAP)
1959 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1960 else if (flag == SIT_BITMAP)
1961 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1966 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1968 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1971 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1973 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1976 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
1977 offset = (flag == SIT_BITMAP) ?
1978 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
1979 return &ckpt->sit_nat_version_bitmap + offset;
1982 if (__cp_payload(sbi) > 0) {
1983 if (flag == NAT_BITMAP)
1984 return &ckpt->sit_nat_version_bitmap;
1986 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1988 offset = (flag == NAT_BITMAP) ?
1989 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1990 return &ckpt->sit_nat_version_bitmap + offset;
1994 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1996 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1998 if (sbi->cur_cp_pack == 2)
1999 start_addr += sbi->blocks_per_seg;
2003 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2005 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2007 if (sbi->cur_cp_pack == 1)
2008 start_addr += sbi->blocks_per_seg;
2012 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2014 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2017 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2019 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2022 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2023 struct inode *inode, bool is_inode)
2025 block_t valid_block_count;
2026 unsigned int valid_node_count;
2031 err = dquot_alloc_inode(inode);
2036 err = dquot_reserve_block(inode, 1);
2041 if (time_to_inject(sbi, FAULT_BLOCK)) {
2042 f2fs_show_injection_info(FAULT_BLOCK);
2046 spin_lock(&sbi->stat_lock);
2048 valid_block_count = sbi->total_valid_block_count +
2049 sbi->current_reserved_blocks + 1;
2051 if (!__allow_reserved_blocks(sbi, inode, false))
2052 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2053 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2054 valid_block_count += sbi->unusable_block_count;
2056 if (unlikely(valid_block_count > sbi->user_block_count)) {
2057 spin_unlock(&sbi->stat_lock);
2061 valid_node_count = sbi->total_valid_node_count + 1;
2062 if (unlikely(valid_node_count > sbi->total_node_count)) {
2063 spin_unlock(&sbi->stat_lock);
2067 sbi->total_valid_node_count++;
2068 sbi->total_valid_block_count++;
2069 spin_unlock(&sbi->stat_lock);
2073 f2fs_mark_inode_dirty_sync(inode, true);
2075 f2fs_i_blocks_write(inode, 1, true, true);
2078 percpu_counter_inc(&sbi->alloc_valid_block_count);
2084 dquot_free_inode(inode);
2086 dquot_release_reservation_block(inode, 1);
2091 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2092 struct inode *inode, bool is_inode)
2094 spin_lock(&sbi->stat_lock);
2096 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2097 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2098 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
2100 sbi->total_valid_node_count--;
2101 sbi->total_valid_block_count--;
2102 if (sbi->reserved_blocks &&
2103 sbi->current_reserved_blocks < sbi->reserved_blocks)
2104 sbi->current_reserved_blocks++;
2106 spin_unlock(&sbi->stat_lock);
2109 dquot_free_inode(inode);
2111 f2fs_i_blocks_write(inode, 1, false, true);
2114 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2116 return sbi->total_valid_node_count;
2119 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2121 percpu_counter_inc(&sbi->total_valid_inode_count);
2124 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2126 percpu_counter_dec(&sbi->total_valid_inode_count);
2129 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2131 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2134 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2135 pgoff_t index, bool for_write)
2139 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2141 page = find_get_page_flags(mapping, index,
2142 FGP_LOCK | FGP_ACCESSED);
2144 page = find_lock_page(mapping, index);
2148 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2149 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
2155 return grab_cache_page(mapping, index);
2156 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2159 static inline struct page *f2fs_pagecache_get_page(
2160 struct address_space *mapping, pgoff_t index,
2161 int fgp_flags, gfp_t gfp_mask)
2163 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2164 f2fs_show_injection_info(FAULT_PAGE_GET);
2168 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2171 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2173 char *src_kaddr = kmap(src);
2174 char *dst_kaddr = kmap(dst);
2176 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2181 static inline void f2fs_put_page(struct page *page, int unlock)
2187 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2193 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2196 f2fs_put_page(dn->node_page, 1);
2197 if (dn->inode_page && dn->node_page != dn->inode_page)
2198 f2fs_put_page(dn->inode_page, 0);
2199 dn->node_page = NULL;
2200 dn->inode_page = NULL;
2203 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2206 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2209 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2214 entry = kmem_cache_alloc(cachep, flags);
2216 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2220 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
2221 int npages, bool no_fail)
2226 /* No failure on bio allocation */
2227 bio = bio_alloc(GFP_NOIO, npages);
2229 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
2232 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
2233 f2fs_show_injection_info(FAULT_ALLOC_BIO);
2237 return bio_alloc(GFP_KERNEL, npages);
2240 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2242 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2243 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2244 get_pages(sbi, F2FS_WB_CP_DATA) ||
2245 get_pages(sbi, F2FS_DIO_READ) ||
2246 get_pages(sbi, F2FS_DIO_WRITE))
2249 if (SM_I(sbi) && SM_I(sbi)->dcc_info &&
2250 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2253 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2254 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2257 return f2fs_time_over(sbi, type);
2260 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2261 unsigned long index, void *item)
2263 while (radix_tree_insert(root, index, item))
2267 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2269 static inline bool IS_INODE(struct page *page)
2271 struct f2fs_node *p = F2FS_NODE(page);
2273 return RAW_IS_INODE(p);
2276 static inline int offset_in_addr(struct f2fs_inode *i)
2278 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2279 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2282 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2284 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2287 static inline int f2fs_has_extra_attr(struct inode *inode);
2288 static inline block_t datablock_addr(struct inode *inode,
2289 struct page *node_page, unsigned int offset)
2291 struct f2fs_node *raw_node;
2294 bool is_inode = IS_INODE(node_page);
2296 raw_node = F2FS_NODE(node_page);
2298 /* from GC path only */
2301 base = offset_in_addr(&raw_node->i);
2302 else if (f2fs_has_extra_attr(inode))
2303 base = get_extra_isize(inode);
2306 addr_array = blkaddr_in_node(raw_node);
2307 return le32_to_cpu(addr_array[base + offset]);
2310 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2315 mask = 1 << (7 - (nr & 0x07));
2316 return mask & *addr;
2319 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2324 mask = 1 << (7 - (nr & 0x07));
2328 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2333 mask = 1 << (7 - (nr & 0x07));
2337 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2343 mask = 1 << (7 - (nr & 0x07));
2349 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2355 mask = 1 << (7 - (nr & 0x07));
2361 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2366 mask = 1 << (7 - (nr & 0x07));
2373 #define F2FS_SECRM_FL 0x00000001 /* Secure deletion */
2374 #define F2FS_UNRM_FL 0x00000002 /* Undelete */
2375 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2376 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2377 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2378 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2379 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2380 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2381 /* Reserved for compression usage... */
2382 #define F2FS_DIRTY_FL 0x00000100
2383 #define F2FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
2384 #define F2FS_NOCOMPR_FL 0x00000400 /* Don't compress */
2385 #define F2FS_ENCRYPT_FL 0x00000800 /* encrypted file */
2386 /* End compression flags --- maybe not all used */
2387 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2388 #define F2FS_IMAGIC_FL 0x00002000 /* AFS directory */
2389 #define F2FS_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
2390 #define F2FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */
2391 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2392 #define F2FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
2393 #define F2FS_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
2394 #define F2FS_EXTENTS_FL 0x00080000 /* Inode uses extents */
2395 #define F2FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */
2396 #define F2FS_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
2397 #define F2FS_NOCOW_FL 0x00800000 /* Do not cow file */
2398 #define F2FS_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
2399 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2400 #define F2FS_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
2402 #define F2FS_FL_USER_VISIBLE 0x30CBDFFF /* User visible flags */
2403 #define F2FS_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */
2405 /* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */
2406 #define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \
2407 F2FS_IMMUTABLE_FL | \
2411 F2FS_PROJINHERIT_FL)
2413 /* Flags that should be inherited by new inodes from their parent. */
2414 #define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\
2415 F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\
2416 F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\
2417 F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\
2418 F2FS_PROJINHERIT_FL)
2420 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2421 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL))
2423 /* Flags that are appropriate for non-directories/regular files. */
2424 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2426 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2430 else if (S_ISREG(mode))
2431 return flags & F2FS_REG_FLMASK;
2433 return flags & F2FS_OTHER_FLMASK;
2436 /* used for f2fs_inode_info->flags */
2438 FI_NEW_INODE, /* indicate newly allocated inode */
2439 FI_DIRTY_INODE, /* indicate inode is dirty or not */
2440 FI_AUTO_RECOVER, /* indicate inode is recoverable */
2441 FI_DIRTY_DIR, /* indicate directory has dirty pages */
2442 FI_INC_LINK, /* need to increment i_nlink */
2443 FI_ACL_MODE, /* indicate acl mode */
2444 FI_NO_ALLOC, /* should not allocate any blocks */
2445 FI_FREE_NID, /* free allocated nide */
2446 FI_NO_EXTENT, /* not to use the extent cache */
2447 FI_INLINE_XATTR, /* used for inline xattr */
2448 FI_INLINE_DATA, /* used for inline data*/
2449 FI_INLINE_DENTRY, /* used for inline dentry */
2450 FI_APPEND_WRITE, /* inode has appended data */
2451 FI_UPDATE_WRITE, /* inode has in-place-update data */
2452 FI_NEED_IPU, /* used for ipu per file */
2453 FI_ATOMIC_FILE, /* indicate atomic file */
2454 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
2455 FI_VOLATILE_FILE, /* indicate volatile file */
2456 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
2457 FI_DROP_CACHE, /* drop dirty page cache */
2458 FI_DATA_EXIST, /* indicate data exists */
2459 FI_INLINE_DOTS, /* indicate inline dot dentries */
2460 FI_DO_DEFRAG, /* indicate defragment is running */
2461 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
2462 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
2463 FI_HOT_DATA, /* indicate file is hot */
2464 FI_EXTRA_ATTR, /* indicate file has extra attribute */
2465 FI_PROJ_INHERIT, /* indicate file inherits projectid */
2466 FI_PIN_FILE, /* indicate file should not be gced */
2467 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
2470 static inline void __mark_inode_dirty_flag(struct inode *inode,
2474 case FI_INLINE_XATTR:
2475 case FI_INLINE_DATA:
2476 case FI_INLINE_DENTRY:
2482 case FI_INLINE_DOTS:
2484 f2fs_mark_inode_dirty_sync(inode, true);
2488 static inline void set_inode_flag(struct inode *inode, int flag)
2490 if (!test_bit(flag, &F2FS_I(inode)->flags))
2491 set_bit(flag, &F2FS_I(inode)->flags);
2492 __mark_inode_dirty_flag(inode, flag, true);
2495 static inline int is_inode_flag_set(struct inode *inode, int flag)
2497 return test_bit(flag, &F2FS_I(inode)->flags);
2500 static inline void clear_inode_flag(struct inode *inode, int flag)
2502 if (test_bit(flag, &F2FS_I(inode)->flags))
2503 clear_bit(flag, &F2FS_I(inode)->flags);
2504 __mark_inode_dirty_flag(inode, flag, false);
2507 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2509 F2FS_I(inode)->i_acl_mode = mode;
2510 set_inode_flag(inode, FI_ACL_MODE);
2511 f2fs_mark_inode_dirty_sync(inode, false);
2514 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2520 f2fs_mark_inode_dirty_sync(inode, true);
2523 static inline void f2fs_i_blocks_write(struct inode *inode,
2524 block_t diff, bool add, bool claim)
2526 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2527 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2529 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2532 dquot_claim_block(inode, diff);
2534 dquot_alloc_block_nofail(inode, diff);
2536 dquot_free_block(inode, diff);
2539 f2fs_mark_inode_dirty_sync(inode, true);
2540 if (clean || recover)
2541 set_inode_flag(inode, FI_AUTO_RECOVER);
2544 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2546 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2547 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2549 if (i_size_read(inode) == i_size)
2552 i_size_write(inode, i_size);
2553 f2fs_mark_inode_dirty_sync(inode, true);
2554 if (clean || recover)
2555 set_inode_flag(inode, FI_AUTO_RECOVER);
2558 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2560 F2FS_I(inode)->i_current_depth = depth;
2561 f2fs_mark_inode_dirty_sync(inode, true);
2564 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2567 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2568 f2fs_mark_inode_dirty_sync(inode, true);
2571 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2573 F2FS_I(inode)->i_xattr_nid = xnid;
2574 f2fs_mark_inode_dirty_sync(inode, true);
2577 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2579 F2FS_I(inode)->i_pino = pino;
2580 f2fs_mark_inode_dirty_sync(inode, true);
2583 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2585 struct f2fs_inode_info *fi = F2FS_I(inode);
2587 if (ri->i_inline & F2FS_INLINE_XATTR)
2588 set_bit(FI_INLINE_XATTR, &fi->flags);
2589 if (ri->i_inline & F2FS_INLINE_DATA)
2590 set_bit(FI_INLINE_DATA, &fi->flags);
2591 if (ri->i_inline & F2FS_INLINE_DENTRY)
2592 set_bit(FI_INLINE_DENTRY, &fi->flags);
2593 if (ri->i_inline & F2FS_DATA_EXIST)
2594 set_bit(FI_DATA_EXIST, &fi->flags);
2595 if (ri->i_inline & F2FS_INLINE_DOTS)
2596 set_bit(FI_INLINE_DOTS, &fi->flags);
2597 if (ri->i_inline & F2FS_EXTRA_ATTR)
2598 set_bit(FI_EXTRA_ATTR, &fi->flags);
2599 if (ri->i_inline & F2FS_PIN_FILE)
2600 set_bit(FI_PIN_FILE, &fi->flags);
2603 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2607 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2608 ri->i_inline |= F2FS_INLINE_XATTR;
2609 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2610 ri->i_inline |= F2FS_INLINE_DATA;
2611 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2612 ri->i_inline |= F2FS_INLINE_DENTRY;
2613 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2614 ri->i_inline |= F2FS_DATA_EXIST;
2615 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2616 ri->i_inline |= F2FS_INLINE_DOTS;
2617 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2618 ri->i_inline |= F2FS_EXTRA_ATTR;
2619 if (is_inode_flag_set(inode, FI_PIN_FILE))
2620 ri->i_inline |= F2FS_PIN_FILE;
2623 static inline int f2fs_has_extra_attr(struct inode *inode)
2625 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2628 static inline int f2fs_has_inline_xattr(struct inode *inode)
2630 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2633 static inline unsigned int addrs_per_inode(struct inode *inode)
2635 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode);
2638 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2640 struct f2fs_inode *ri = F2FS_INODE(page);
2642 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2643 get_inline_xattr_addrs(inode)]);
2646 static inline int inline_xattr_size(struct inode *inode)
2648 if (f2fs_has_inline_xattr(inode))
2649 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2653 static inline int f2fs_has_inline_data(struct inode *inode)
2655 return is_inode_flag_set(inode, FI_INLINE_DATA);
2658 static inline int f2fs_exist_data(struct inode *inode)
2660 return is_inode_flag_set(inode, FI_DATA_EXIST);
2663 static inline int f2fs_has_inline_dots(struct inode *inode)
2665 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2668 static inline bool f2fs_is_pinned_file(struct inode *inode)
2670 return is_inode_flag_set(inode, FI_PIN_FILE);
2673 static inline bool f2fs_is_atomic_file(struct inode *inode)
2675 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2678 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2680 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2683 static inline bool f2fs_is_volatile_file(struct inode *inode)
2685 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2688 static inline bool f2fs_is_first_block_written(struct inode *inode)
2690 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2693 static inline bool f2fs_is_drop_cache(struct inode *inode)
2695 return is_inode_flag_set(inode, FI_DROP_CACHE);
2698 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2700 struct f2fs_inode *ri = F2FS_INODE(page);
2701 int extra_size = get_extra_isize(inode);
2703 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2706 static inline int f2fs_has_inline_dentry(struct inode *inode)
2708 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2711 static inline int is_file(struct inode *inode, int type)
2713 return F2FS_I(inode)->i_advise & type;
2716 static inline void set_file(struct inode *inode, int type)
2718 F2FS_I(inode)->i_advise |= type;
2719 f2fs_mark_inode_dirty_sync(inode, true);
2722 static inline void clear_file(struct inode *inode, int type)
2724 F2FS_I(inode)->i_advise &= ~type;
2725 f2fs_mark_inode_dirty_sync(inode, true);
2728 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2733 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2735 spin_lock(&sbi->inode_lock[DIRTY_META]);
2736 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2737 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2740 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2741 file_keep_isize(inode) ||
2742 i_size_read(inode) & ~PAGE_MASK)
2745 if (!timespec_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2747 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2749 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2751 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 3,
2752 &F2FS_I(inode)->i_crtime))
2755 down_read(&F2FS_I(inode)->i_sem);
2756 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2757 up_read(&F2FS_I(inode)->i_sem);
2762 static inline bool f2fs_readonly(struct super_block *sb)
2764 return sb->s_flags & MS_RDONLY;
2767 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2769 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2772 static inline bool is_dot_dotdot(const struct qstr *str)
2774 if (str->len == 1 && str->name[0] == '.')
2777 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2783 static inline bool f2fs_may_extent_tree(struct inode *inode)
2785 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2787 if (!test_opt(sbi, EXTENT_CACHE) ||
2788 is_inode_flag_set(inode, FI_NO_EXTENT))
2792 * for recovered files during mount do not create extents
2793 * if shrinker is not registered.
2795 if (list_empty(&sbi->s_list))
2798 return S_ISREG(inode->i_mode);
2801 static inline void *kvmalloc(size_t size, gfp_t flags)
2805 ret = kmalloc(size, flags | __GFP_NOWARN);
2807 ret = __vmalloc(size, flags, PAGE_KERNEL);
2811 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2812 size_t size, gfp_t flags)
2816 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2817 f2fs_show_injection_info(FAULT_KMALLOC);
2821 ret = kmalloc(size, flags);
2825 return kvmalloc(size, flags);
2828 static inline void *kvzalloc(size_t size, gfp_t flags)
2832 ret = kzalloc(size, flags | __GFP_NOWARN);
2834 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
2838 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2839 size_t size, gfp_t flags)
2841 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2844 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2845 size_t size, gfp_t flags)
2847 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2848 f2fs_show_injection_info(FAULT_KVMALLOC);
2852 return kvmalloc(size, flags);
2855 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2856 size_t size, gfp_t flags)
2858 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2861 static inline int get_extra_isize(struct inode *inode)
2863 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2866 static inline int get_inline_xattr_addrs(struct inode *inode)
2868 return F2FS_I(inode)->i_inline_xattr_size;
2871 #define f2fs_get_inode_mode(i) \
2872 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2873 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2875 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2876 (offsetof(struct f2fs_inode, i_extra_end) - \
2877 offsetof(struct f2fs_inode, i_extra_isize)) \
2879 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2880 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2881 ((offsetof(typeof(*(f2fs_inode)), field) + \
2882 sizeof((f2fs_inode)->field)) \
2883 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
2885 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2889 spin_lock(&sbi->iostat_lock);
2890 for (i = 0; i < NR_IO_TYPE; i++)
2891 sbi->write_iostat[i] = 0;
2892 spin_unlock(&sbi->iostat_lock);
2895 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2896 enum iostat_type type, unsigned long long io_bytes)
2898 if (!sbi->iostat_enable)
2900 spin_lock(&sbi->iostat_lock);
2901 sbi->write_iostat[type] += io_bytes;
2903 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2904 sbi->write_iostat[APP_BUFFERED_IO] =
2905 sbi->write_iostat[APP_WRITE_IO] -
2906 sbi->write_iostat[APP_DIRECT_IO];
2907 spin_unlock(&sbi->iostat_lock);
2910 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
2912 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META && \
2913 (!is_read_io((fio)->op) || (fio)->is_meta))
2915 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2916 block_t blkaddr, int type);
2917 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
2918 block_t blkaddr, int type)
2920 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
2921 f2fs_msg(sbi->sb, KERN_ERR,
2922 "invalid blkaddr: %u, type: %d, run fsck to fix.",
2924 f2fs_bug_on(sbi, 1);
2928 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
2930 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
2935 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi,
2938 if (!__is_valid_data_blkaddr(blkaddr))
2940 verify_blkaddr(sbi, blkaddr, DATA_GENERIC);
2944 static inline void f2fs_set_page_private(struct page *page,
2947 if (PagePrivate(page))
2951 SetPagePrivate(page);
2952 set_page_private(page, data);
2955 static inline void f2fs_clear_page_private(struct page *page)
2957 if (!PagePrivate(page))
2960 set_page_private(page, 0);
2961 ClearPagePrivate(page);
2962 f2fs_put_page(page, 0);
2968 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2969 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
2970 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
2971 int f2fs_truncate(struct inode *inode);
2972 int f2fs_getattr(struct vfsmount *mnt, struct dentry *dentry,
2973 struct kstat *stat);
2974 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2975 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2976 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2977 int f2fs_precache_extents(struct inode *inode);
2978 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2979 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2980 int f2fs_pin_file_control(struct inode *inode, bool inc);
2985 void f2fs_set_inode_flags(struct inode *inode);
2986 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2987 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2988 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2989 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2990 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2991 void f2fs_update_inode(struct inode *inode, struct page *node_page);
2992 void f2fs_update_inode_page(struct inode *inode);
2993 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2994 void f2fs_evict_inode(struct inode *inode);
2995 void f2fs_handle_failed_inode(struct inode *inode);
3000 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3001 bool hot, bool set);
3002 struct dentry *f2fs_get_parent(struct dentry *child);
3007 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3008 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
3009 f2fs_hash_t namehash, int *max_slots,
3010 struct f2fs_dentry_ptr *d);
3011 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3012 unsigned int start_pos, struct fscrypt_str *fstr);
3013 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3014 struct f2fs_dentry_ptr *d);
3015 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3016 const struct qstr *new_name,
3017 const struct qstr *orig_name, struct page *dpage);
3018 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3019 unsigned int current_depth);
3020 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3021 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3022 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3023 struct fscrypt_name *fname, struct page **res_page);
3024 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3025 const struct qstr *child, struct page **res_page);
3026 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3027 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3028 struct page **page);
3029 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3030 struct page *page, struct inode *inode);
3031 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3032 const struct qstr *name, f2fs_hash_t name_hash,
3033 unsigned int bit_pos);
3034 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
3035 const struct qstr *orig_name,
3036 struct inode *inode, nid_t ino, umode_t mode);
3037 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
3038 struct inode *inode, nid_t ino, umode_t mode);
3039 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3040 struct inode *inode, nid_t ino, umode_t mode);
3041 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3042 struct inode *dir, struct inode *inode);
3043 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3044 bool f2fs_empty_dir(struct inode *dir);
3046 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3048 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3049 inode, inode->i_ino, inode->i_mode);
3055 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3056 void f2fs_inode_synced(struct inode *inode);
3057 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3058 int f2fs_quota_sync(struct super_block *sb, int type);
3059 void f2fs_quota_off_umount(struct super_block *sb);
3060 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3061 int f2fs_sync_fs(struct super_block *sb, int sync);
3062 extern __printf(3, 4)
3063 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
3064 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3069 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
3070 struct fscrypt_name *fname);
3075 struct dnode_of_data;
3078 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3079 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3080 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3081 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3082 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3083 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3084 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3085 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3086 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3087 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3088 struct node_info *ni);
3089 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3090 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3091 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3092 int f2fs_truncate_xattr_node(struct inode *inode);
3093 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3094 unsigned int seq_id);
3095 int f2fs_remove_inode_page(struct inode *inode);
3096 struct page *f2fs_new_inode_page(struct inode *inode);
3097 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3098 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3099 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3100 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3101 int f2fs_move_node_page(struct page *node_page, int gc_type);
3102 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3103 struct writeback_control *wbc, bool atomic,
3104 unsigned int *seq_id);
3105 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3106 struct writeback_control *wbc,
3107 bool do_balance, enum iostat_type io_type);
3108 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3109 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3110 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3111 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3112 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3113 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3114 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3115 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3116 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3117 unsigned int segno, struct f2fs_summary_block *sum);
3118 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3119 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3120 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3121 int __init f2fs_create_node_manager_caches(void);
3122 void f2fs_destroy_node_manager_caches(void);
3127 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3128 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3129 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3130 void f2fs_drop_inmem_pages(struct inode *inode);
3131 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3132 int f2fs_commit_inmem_pages(struct inode *inode);
3133 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3134 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
3135 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3136 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3137 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3138 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3139 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3140 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3141 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3142 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3143 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3144 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3145 struct cp_control *cpc);
3146 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3147 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi);
3148 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3149 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3150 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3151 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3152 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3153 struct cp_control *cpc);
3154 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3155 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3157 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3158 enum iostat_type io_type);
3159 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3160 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3161 struct f2fs_io_info *fio);
3162 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3163 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3164 block_t old_blkaddr, block_t new_blkaddr,
3165 bool recover_curseg, bool recover_newaddr);
3166 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3167 block_t old_addr, block_t new_addr,
3168 unsigned char version, bool recover_curseg,
3169 bool recover_newaddr);
3170 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3171 block_t old_blkaddr, block_t *new_blkaddr,
3172 struct f2fs_summary *sum, int type,
3173 struct f2fs_io_info *fio, bool add_list);
3174 void f2fs_wait_on_page_writeback(struct page *page,
3175 enum page_type type, bool ordered, bool locked);
3176 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3177 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3179 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3180 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3181 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3182 unsigned int val, int alloc);
3183 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3184 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3185 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3186 int __init f2fs_create_segment_manager_caches(void);
3187 void f2fs_destroy_segment_manager_caches(void);
3188 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3189 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3190 enum page_type type, enum temp_type temp);
3195 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3196 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3197 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3198 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index);
3199 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3200 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3201 block_t blkaddr, int type);
3202 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3203 int type, bool sync);
3204 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3205 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3206 long nr_to_write, enum iostat_type io_type);
3207 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3208 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3209 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3210 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3211 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3212 unsigned int devidx, int type);
3213 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3214 unsigned int devidx, int type);
3215 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3216 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3217 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3218 void f2fs_add_orphan_inode(struct inode *inode);
3219 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3220 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3221 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3222 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3223 void f2fs_remove_dirty_inode(struct inode *inode);
3224 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3225 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
3226 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3227 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3228 int __init f2fs_create_checkpoint_caches(void);
3229 void f2fs_destroy_checkpoint_caches(void);
3234 int f2fs_init_post_read_processing(void);
3235 void f2fs_destroy_post_read_processing(void);
3236 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3237 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3238 struct inode *inode, struct page *page,
3239 nid_t ino, enum page_type type);
3240 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3241 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3242 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3243 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3244 block_t blk_addr, struct bio *bio);
3245 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3246 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3247 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3248 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3249 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3250 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3251 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3252 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3253 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3254 int op_flags, bool for_write);
3255 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3256 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3258 struct page *f2fs_get_new_data_page(struct inode *inode,
3259 struct page *ipage, pgoff_t index, bool new_i_size);
3260 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3261 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3262 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3263 int create, int flag);
3264 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3265 u64 start, u64 len);
3266 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3267 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3268 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3269 unsigned int length);
3270 int f2fs_release_page(struct page *page, gfp_t wait);
3271 #ifdef CONFIG_MIGRATION
3272 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3273 struct page *page, enum migrate_mode mode);
3275 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3276 void f2fs_clear_radix_tree_dirty_tag(struct page *page);
3281 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3282 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3283 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3284 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3285 unsigned int segno);
3286 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3291 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3292 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3297 #ifdef CONFIG_F2FS_STAT_FS
3298 struct f2fs_stat_info {
3299 struct list_head stat_list;
3300 struct f2fs_sb_info *sbi;
3301 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3302 int main_area_segs, main_area_sections, main_area_zones;
3303 unsigned long long hit_largest, hit_cached, hit_rbtree;
3304 unsigned long long hit_total, total_ext;
3305 int ext_tree, zombie_tree, ext_node;
3306 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3307 int ndirty_data, ndirty_qdata;
3309 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3310 int nats, dirty_nats, sits, dirty_sits;
3311 int free_nids, avail_nids, alloc_nids;
3312 int total_count, utilization;
3313 int bg_gc, nr_wb_cp_data, nr_wb_data;
3314 int nr_rd_data, nr_rd_node, nr_rd_meta;
3315 int nr_dio_read, nr_dio_write;
3316 unsigned int io_skip_bggc, other_skip_bggc;
3317 int nr_flushing, nr_flushed, flush_list_empty;
3318 int nr_discarding, nr_discarded;
3320 unsigned int undiscard_blks;
3321 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3322 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3323 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3324 unsigned int bimodal, avg_vblocks;
3325 int util_free, util_valid, util_invalid;
3326 int rsvd_segs, overp_segs;
3327 int dirty_count, node_pages, meta_pages;
3328 int prefree_count, call_count, cp_count, bg_cp_count;
3329 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3330 int bg_node_segs, bg_data_segs;
3331 int tot_blks, data_blks, node_blks;
3332 int bg_data_blks, bg_node_blks;
3333 unsigned long long skipped_atomic_files[2];
3334 int curseg[NR_CURSEG_TYPE];
3335 int cursec[NR_CURSEG_TYPE];
3336 int curzone[NR_CURSEG_TYPE];
3338 unsigned int meta_count[META_MAX];
3339 unsigned int segment_count[2];
3340 unsigned int block_count[2];
3341 unsigned int inplace_count;
3342 unsigned long long base_mem, cache_mem, page_mem;
3345 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3347 return (struct f2fs_stat_info *)sbi->stat_info;
3350 #define stat_inc_cp_count(si) ((si)->cp_count++)
3351 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3352 #define stat_inc_call_count(si) ((si)->call_count++)
3353 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
3354 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3355 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3356 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3357 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3358 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3359 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3360 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3361 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3362 #define stat_inc_inline_xattr(inode) \
3364 if (f2fs_has_inline_xattr(inode)) \
3365 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3367 #define stat_dec_inline_xattr(inode) \
3369 if (f2fs_has_inline_xattr(inode)) \
3370 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3372 #define stat_inc_inline_inode(inode) \
3374 if (f2fs_has_inline_data(inode)) \
3375 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3377 #define stat_dec_inline_inode(inode) \
3379 if (f2fs_has_inline_data(inode)) \
3380 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3382 #define stat_inc_inline_dir(inode) \
3384 if (f2fs_has_inline_dentry(inode)) \
3385 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3387 #define stat_dec_inline_dir(inode) \
3389 if (f2fs_has_inline_dentry(inode)) \
3390 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3392 #define stat_inc_meta_count(sbi, blkaddr) \
3394 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3395 atomic_inc(&(sbi)->meta_count[META_CP]); \
3396 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3397 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3398 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3399 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3400 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3401 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3403 #define stat_inc_seg_type(sbi, curseg) \
3404 ((sbi)->segment_count[(curseg)->alloc_type]++)
3405 #define stat_inc_block_count(sbi, curseg) \
3406 ((sbi)->block_count[(curseg)->alloc_type]++)
3407 #define stat_inc_inplace_blocks(sbi) \
3408 (atomic_inc(&(sbi)->inplace_count))
3409 #define stat_inc_atomic_write(inode) \
3410 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3411 #define stat_dec_atomic_write(inode) \
3412 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3413 #define stat_update_max_atomic_write(inode) \
3415 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3416 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3418 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3420 #define stat_inc_volatile_write(inode) \
3421 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3422 #define stat_dec_volatile_write(inode) \
3423 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3424 #define stat_update_max_volatile_write(inode) \
3426 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3427 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3429 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3431 #define stat_inc_seg_count(sbi, type, gc_type) \
3433 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3435 if ((type) == SUM_TYPE_DATA) { \
3437 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3440 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3444 #define stat_inc_tot_blk_count(si, blks) \
3445 ((si)->tot_blks += (blks))
3447 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3449 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3450 stat_inc_tot_blk_count(si, blks); \
3451 si->data_blks += (blks); \
3452 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3455 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3457 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3458 stat_inc_tot_blk_count(si, blks); \
3459 si->node_blks += (blks); \
3460 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3463 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3464 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3465 void __init f2fs_create_root_stats(void);
3466 void f2fs_destroy_root_stats(void);
3468 #define stat_inc_cp_count(si) do { } while (0)
3469 #define stat_inc_bg_cp_count(si) do { } while (0)
3470 #define stat_inc_call_count(si) do { } while (0)
3471 #define stat_inc_bggc_count(si) do { } while (0)
3472 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3473 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3474 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3475 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3476 #define stat_inc_total_hit(sb) do { } while (0)
3477 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3478 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3479 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3480 #define stat_inc_inline_xattr(inode) do { } while (0)
3481 #define stat_dec_inline_xattr(inode) do { } while (0)
3482 #define stat_inc_inline_inode(inode) do { } while (0)
3483 #define stat_dec_inline_inode(inode) do { } while (0)
3484 #define stat_inc_inline_dir(inode) do { } while (0)
3485 #define stat_dec_inline_dir(inode) do { } while (0)
3486 #define stat_inc_atomic_write(inode) do { } while (0)
3487 #define stat_dec_atomic_write(inode) do { } while (0)
3488 #define stat_update_max_atomic_write(inode) do { } while (0)
3489 #define stat_inc_volatile_write(inode) do { } while (0)
3490 #define stat_dec_volatile_write(inode) do { } while (0)
3491 #define stat_update_max_volatile_write(inode) do { } while (0)
3492 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3493 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3494 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3495 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3496 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3497 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3498 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3499 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3501 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3502 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3503 static inline void __init f2fs_create_root_stats(void) { }
3504 static inline void f2fs_destroy_root_stats(void) { }
3507 extern const struct file_operations f2fs_dir_operations;
3508 extern const struct file_operations f2fs_file_operations;
3509 extern const struct inode_operations f2fs_file_inode_operations;
3510 extern const struct address_space_operations f2fs_dblock_aops;
3511 extern const struct address_space_operations f2fs_node_aops;
3512 extern const struct address_space_operations f2fs_meta_aops;
3513 extern const struct inode_operations f2fs_dir_inode_operations;
3514 extern const struct inode_operations f2fs_symlink_inode_operations;
3515 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3516 extern const struct inode_operations f2fs_special_inode_operations;
3517 extern struct kmem_cache *f2fs_inode_entry_slab;
3522 bool f2fs_may_inline_data(struct inode *inode);
3523 bool f2fs_may_inline_dentry(struct inode *inode);
3524 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3525 void f2fs_truncate_inline_inode(struct inode *inode,
3526 struct page *ipage, u64 from);
3527 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3528 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3529 int f2fs_convert_inline_inode(struct inode *inode);
3530 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3531 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3532 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3533 struct fscrypt_name *fname, struct page **res_page);
3534 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3535 struct page *ipage);
3536 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3537 const struct qstr *orig_name,
3538 struct inode *inode, nid_t ino, umode_t mode);
3539 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3540 struct page *page, struct inode *dir,
3541 struct inode *inode);
3542 bool f2fs_empty_inline_dir(struct inode *dir);
3543 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3544 struct fscrypt_str *fstr);
3545 int f2fs_inline_data_fiemap(struct inode *inode,
3546 struct fiemap_extent_info *fieinfo,
3547 __u64 start, __u64 len);
3552 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3553 struct shrink_control *sc);
3554 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3555 struct shrink_control *sc);
3556 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3557 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3562 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root *root,
3563 struct rb_entry *cached_re, unsigned int ofs);
3564 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3565 struct rb_root *root, struct rb_node **parent,
3567 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
3568 struct rb_entry *cached_re, unsigned int ofs,
3569 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3570 struct rb_node ***insert_p, struct rb_node **insert_parent,
3572 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3573 struct rb_root *root);
3574 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3575 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3576 void f2fs_drop_extent_tree(struct inode *inode);
3577 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3578 void f2fs_destroy_extent_tree(struct inode *inode);
3579 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3580 struct extent_info *ei);
3581 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3582 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3583 pgoff_t fofs, block_t blkaddr, unsigned int len);
3584 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3585 int __init f2fs_create_extent_cache(void);
3586 void f2fs_destroy_extent_cache(void);
3591 int __init f2fs_init_sysfs(void);
3592 void f2fs_exit_sysfs(void);
3593 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3594 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3599 static inline bool f2fs_encrypted_inode(struct inode *inode)
3601 return file_is_encrypt(inode);
3604 static inline bool f2fs_encrypted_file(struct inode *inode)
3606 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
3609 static inline void f2fs_set_encrypted_inode(struct inode *inode)
3611 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3612 file_set_encrypt(inode);
3613 f2fs_set_inode_flags(inode);
3618 * Returns true if the reads of the inode's data need to undergo some
3619 * postprocessing step, like decryption or authenticity verification.
3621 static inline bool f2fs_post_read_required(struct inode *inode)
3623 return f2fs_encrypted_file(inode);
3626 #define F2FS_FEATURE_FUNCS(name, flagname) \
3627 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
3629 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
3632 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3633 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3634 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3635 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3636 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3637 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3638 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3639 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3640 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3641 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
3643 #ifdef CONFIG_BLK_DEV_ZONED
3644 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
3647 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3649 return test_bit(zno, FDEV(devi).blkz_seq);
3653 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
3655 return f2fs_sb_has_blkzoned(sbi);
3658 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
3660 return blk_queue_discard(bdev_get_queue(bdev)) ||
3661 #ifdef CONFIG_BLK_DEV_ZONED
3662 bdev_is_zoned(bdev);
3668 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
3672 if (!f2fs_is_multi_device(sbi))
3673 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
3675 for (i = 0; i < sbi->s_ndevs; i++)
3676 if (f2fs_bdev_support_discard(FDEV(i).bdev))
3681 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
3683 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
3684 f2fs_hw_should_discard(sbi);
3687 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3689 clear_opt(sbi, ADAPTIVE);
3690 clear_opt(sbi, LFS);
3693 case F2FS_MOUNT_ADAPTIVE:
3694 set_opt(sbi, ADAPTIVE);
3696 case F2FS_MOUNT_LFS:
3702 static inline bool f2fs_may_encrypt(struct inode *inode)
3704 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3705 umode_t mode = inode->i_mode;
3707 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3713 static inline int block_unaligned_IO(struct inode *inode,
3714 struct kiocb *iocb, struct iov_iter *iter)
3716 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
3717 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
3718 loff_t offset = iocb->ki_pos;
3719 unsigned long align = offset | iov_iter_alignment(iter);
3721 return align & blocksize_mask;
3724 static inline int allow_outplace_dio(struct inode *inode,
3725 struct kiocb *iocb, struct iov_iter *iter)
3727 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3728 int rw = iov_iter_rw(iter);
3730 return (test_opt(sbi, LFS) && (rw == WRITE) &&
3731 !block_unaligned_IO(inode, iocb, iter));
3734 static inline bool f2fs_force_buffered_io(struct inode *inode,
3735 struct kiocb *iocb, struct iov_iter *iter)
3737 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3738 int rw = iov_iter_rw(iter);
3740 if (f2fs_post_read_required(inode))
3742 if (f2fs_is_multi_device(sbi))
3745 * for blkzoned device, fallback direct IO to buffered IO, so
3746 * all IOs can be serialized by log-structured write.
3748 if (f2fs_sb_has_blkzoned(sbi))
3750 if (test_opt(sbi, LFS) && (rw == WRITE) &&
3751 block_unaligned_IO(inode, iocb, iter))
3753 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
3759 #ifdef CONFIG_F2FS_FAULT_INJECTION
3760 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
3763 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
3766 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
3769 if (f2fs_sb_has_quota_ino(sbi))
3771 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
3772 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
3773 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
3779 #endif /* _LINUX_F2FS_H */