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 */
142 block_t unusable_cap; /* Amount of space allowed to be
143 * unusable when disabling checkpoint
147 #define F2FS_FEATURE_ENCRYPT 0x0001
148 #define F2FS_FEATURE_BLKZONED 0x0002
149 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
150 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
151 #define F2FS_FEATURE_PRJQUOTA 0x0010
152 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
153 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
154 #define F2FS_FEATURE_QUOTA_INO 0x0080
155 #define F2FS_FEATURE_INODE_CRTIME 0x0100
156 #define F2FS_FEATURE_LOST_FOUND 0x0200
157 #define F2FS_FEATURE_VERITY 0x0400 /* reserved */
158 #define F2FS_FEATURE_SB_CHKSUM 0x0800
160 #define __F2FS_HAS_FEATURE(raw_super, mask) \
161 ((raw_super->feature & cpu_to_le32(mask)) != 0)
162 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
163 #define F2FS_SET_FEATURE(sbi, mask) \
164 (sbi->raw_super->feature |= cpu_to_le32(mask))
165 #define F2FS_CLEAR_FEATURE(sbi, mask) \
166 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
169 #define REQ_OP_READ READ
170 #define REQ_OP_WRITE WRITE
171 #define bio_op(bio) ((bio)->bi_rw & 1)
173 static inline void bio_set_op_attrs(struct bio *bio, unsigned op,
176 bio->bi_rw = op | op_flags;
179 static inline int wbc_to_write_flags(struct writeback_control *wbc)
181 if (wbc->sync_mode == WB_SYNC_ALL)
182 return REQ_SYNC | REQ_NOIDLE;
187 * wq_has_sleeper - check if there are any waiting processes
188 * @wq: wait queue head
190 * Returns true if wq has waiting processes
192 * Please refer to the comment for waitqueue_active.
194 static inline bool wq_has_sleeper(wait_queue_head_t *wq)
197 * We need to be sure we are in sync with the
198 * add_wait_queue modifications to the wait queue.
200 * This memory barrier should be paired with one on the
204 return waitqueue_active(wq);
208 * current_time - Return FS time
211 * Return the current time truncated to the time granularity supported by
214 * Note that inode and inode->sb cannot be NULL.
215 * Otherwise, the function warns and returns time without truncation.
217 static inline struct timespec current_time(struct inode *inode)
219 struct timespec now = current_kernel_time();
221 if (unlikely(!inode->i_sb)) {
222 WARN(1, "current_time() called with uninitialized super_block in the inode");
226 return timespec_trunc(now, inode->i_sb->s_time_gran);
230 * Default values for user and/or group using reserved blocks
232 #define F2FS_DEF_RESUID 0
233 #define F2FS_DEF_RESGID 0
236 * For checkpoint manager
243 #define CP_UMOUNT 0x00000001
244 #define CP_FASTBOOT 0x00000002
245 #define CP_SYNC 0x00000004
246 #define CP_RECOVERY 0x00000008
247 #define CP_DISCARD 0x00000010
248 #define CP_TRIMMED 0x00000020
249 #define CP_PAUSE 0x00000040
251 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
252 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
253 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
254 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
255 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
256 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
257 #define DEF_MAX_DISCARD_URGENT_ISSUE_TIME 10000 /* 10 s, if no candidates on high utilization */
258 #define DEF_CP_INTERVAL 60 /* 60 secs */
259 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
260 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
261 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
262 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
272 * indicate meta/data type
281 DATA_GENERIC, /* check range only */
282 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
283 DATA_GENERIC_ENHANCE_READ, /*
284 * strong check on range and segment
285 * bitmap but no warning due to race
286 * condition of read on truncated area
292 /* for the list of ino */
294 ORPHAN_INO, /* for orphan ino list */
295 APPEND_INO, /* for append ino list */
296 UPDATE_INO, /* for update ino list */
297 TRANS_DIR_INO, /* for trasactions dir ino list */
298 FLUSH_INO, /* for multiple device flushing */
299 MAX_INO_ENTRY, /* max. list */
303 struct list_head list; /* list head */
304 nid_t ino; /* inode number */
305 unsigned int dirty_device; /* dirty device bitmap */
308 /* for the list of inodes to be GCed */
310 struct list_head list; /* list head */
311 struct inode *inode; /* vfs inode pointer */
314 struct fsync_node_entry {
315 struct list_head list; /* list head */
316 struct page *page; /* warm node page pointer */
317 unsigned int seq_id; /* sequence id */
320 /* for the bitmap indicate blocks to be discarded */
321 struct discard_entry {
322 struct list_head list; /* list head */
323 block_t start_blkaddr; /* start blockaddr of current segment */
324 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
327 /* default discard granularity of inner discard thread, unit: block count */
328 #define DEFAULT_DISCARD_GRANULARITY 16
330 /* max discard pend list number */
331 #define MAX_PLIST_NUM 512
332 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
333 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
336 D_PREP, /* initial */
337 D_PARTIAL, /* partially submitted */
338 D_SUBMIT, /* all submitted */
339 D_DONE, /* finished */
342 struct discard_info {
343 block_t lstart; /* logical start address */
344 block_t len; /* length */
345 block_t start; /* actual start address in dev */
349 struct rb_node rb_node; /* rb node located in rb-tree */
352 block_t lstart; /* logical start address */
353 block_t len; /* length */
354 block_t start; /* actual start address in dev */
356 struct discard_info di; /* discard info */
359 struct list_head list; /* command list */
360 struct completion wait; /* compleation */
361 struct block_device *bdev; /* bdev */
362 unsigned short ref; /* reference count */
363 unsigned char state; /* state */
364 unsigned char queued; /* queued discard */
365 int error; /* bio error */
366 spinlock_t lock; /* for state/bio_ref updating */
367 unsigned short bio_ref; /* bio reference count */
378 struct discard_policy {
379 int type; /* type of discard */
380 unsigned int min_interval; /* used for candidates exist */
381 unsigned int mid_interval; /* used for device busy */
382 unsigned int max_interval; /* used for candidates not exist */
383 unsigned int max_requests; /* # of discards issued per round */
384 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
385 bool io_aware; /* issue discard in idle time */
386 bool sync; /* submit discard with REQ_SYNC flag */
387 bool ordered; /* issue discard by lba order */
388 unsigned int granularity; /* discard granularity */
389 int timeout; /* discard timeout for put_super */
392 struct discard_cmd_control {
393 struct task_struct *f2fs_issue_discard; /* discard thread */
394 struct list_head entry_list; /* 4KB discard entry list */
395 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
396 struct list_head wait_list; /* store on-flushing entries */
397 struct list_head fstrim_list; /* in-flight discard from fstrim */
398 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
399 unsigned int discard_wake; /* to wake up discard thread */
400 struct mutex cmd_lock;
401 unsigned int nr_discards; /* # of discards in the list */
402 unsigned int max_discards; /* max. discards to be issued */
403 unsigned int discard_granularity; /* discard granularity */
404 unsigned int undiscard_blks; /* # of undiscard blocks */
405 unsigned int next_pos; /* next discard position */
406 atomic_t issued_discard; /* # of issued discard */
407 atomic_t queued_discard; /* # of queued discard */
408 atomic_t discard_cmd_cnt; /* # of cached cmd count */
409 struct rb_root root; /* root of discard rb-tree */
410 bool rbtree_check; /* config for consistence check */
413 /* for the list of fsync inodes, used only during recovery */
414 struct fsync_inode_entry {
415 struct list_head list; /* list head */
416 struct inode *inode; /* vfs inode pointer */
417 block_t blkaddr; /* block address locating the last fsync */
418 block_t last_dentry; /* block address locating the last dentry */
421 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
422 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
424 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
425 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
426 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
427 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
429 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
430 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
432 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
434 int before = nats_in_cursum(journal);
436 journal->n_nats = cpu_to_le16(before + i);
440 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
442 int before = sits_in_cursum(journal);
444 journal->n_sits = cpu_to_le16(before + i);
448 static inline bool __has_cursum_space(struct f2fs_journal *journal,
451 if (type == NAT_JOURNAL)
452 return size <= MAX_NAT_JENTRIES(journal);
453 return size <= MAX_SIT_JENTRIES(journal);
459 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
460 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
461 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
463 #define F2FS_IOCTL_MAGIC 0xf5
464 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
465 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
466 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
467 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
468 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
469 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
470 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
471 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
472 struct f2fs_defragment)
473 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
474 struct f2fs_move_range)
475 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
476 struct f2fs_flush_device)
477 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
478 struct f2fs_gc_range)
479 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
480 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
481 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
482 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
483 #define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
485 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
486 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
487 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
490 * should be same as XFS_IOC_GOINGDOWN.
491 * Flags for going down operation used by FS_IOC_GOINGDOWN
493 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
494 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
495 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
496 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
497 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
498 #define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
500 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
502 * ioctl commands in 32 bit emulation
504 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
505 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
506 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
509 struct f2fs_gc_range {
515 struct f2fs_defragment {
520 struct f2fs_move_range {
521 u32 dst_fd; /* destination fd */
522 u64 pos_in; /* start position in src_fd */
523 u64 pos_out; /* start position in dst_fd */
524 u64 len; /* size to move */
527 struct f2fs_flush_device {
528 u32 dev_num; /* device number to flush */
529 u32 segments; /* # of segments to flush */
532 /* for inline stuff */
533 #define DEF_INLINE_RESERVED_SIZE 1
534 static inline int get_extra_isize(struct inode *inode);
535 static inline int get_inline_xattr_addrs(struct inode *inode);
536 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
537 (CUR_ADDRS_PER_INODE(inode) - \
538 get_inline_xattr_addrs(inode) - \
539 DEF_INLINE_RESERVED_SIZE))
542 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
543 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
545 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
546 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
547 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
548 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
549 NR_INLINE_DENTRY(inode) + \
550 INLINE_DENTRY_BITMAP_SIZE(inode)))
553 * For INODE and NODE manager
555 /* for directory operations */
556 struct f2fs_dentry_ptr {
559 struct f2fs_dir_entry *dentry;
560 __u8 (*filename)[F2FS_SLOT_LEN];
565 static inline void make_dentry_ptr_block(struct inode *inode,
566 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
569 d->max = NR_DENTRY_IN_BLOCK;
570 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
571 d->bitmap = t->dentry_bitmap;
572 d->dentry = t->dentry;
573 d->filename = t->filename;
576 static inline void make_dentry_ptr_inline(struct inode *inode,
577 struct f2fs_dentry_ptr *d, void *t)
579 int entry_cnt = NR_INLINE_DENTRY(inode);
580 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
581 int reserved_size = INLINE_RESERVED_SIZE(inode);
585 d->nr_bitmap = bitmap_size;
587 d->dentry = t + bitmap_size + reserved_size;
588 d->filename = t + bitmap_size + reserved_size +
589 SIZE_OF_DIR_ENTRY * entry_cnt;
593 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
594 * as its node offset to distinguish from index node blocks.
595 * But some bits are used to mark the node block.
597 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
600 ALLOC_NODE, /* allocate a new node page if needed */
601 LOOKUP_NODE, /* look up a node without readahead */
603 * look up a node with readahead called
608 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
610 /* maximum retry quota flush count */
611 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
613 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
615 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
617 /* for in-memory extent cache entry */
618 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
620 /* number of extent info in extent cache we try to shrink */
621 #define EXTENT_CACHE_SHRINK_NUMBER 128
624 struct rb_node rb_node; /* rb node located in rb-tree */
625 unsigned int ofs; /* start offset of the entry */
626 unsigned int len; /* length of the entry */
630 unsigned int fofs; /* start offset in a file */
631 unsigned int len; /* length of the extent */
632 u32 blk; /* start block address of the extent */
636 struct rb_node rb_node; /* rb node located in rb-tree */
637 struct extent_info ei; /* extent info */
638 struct list_head list; /* node in global extent list of sbi */
639 struct extent_tree *et; /* extent tree pointer */
643 nid_t ino; /* inode number */
644 struct rb_root root; /* root of extent info rb-tree */
645 struct extent_node *cached_en; /* recently accessed extent node */
646 struct extent_info largest; /* largested extent info */
647 struct list_head list; /* to be used by sbi->zombie_list */
648 rwlock_t lock; /* protect extent info rb-tree */
649 atomic_t node_cnt; /* # of extent node in rb-tree*/
650 bool largest_updated; /* largest extent updated */
654 * This structure is taken from ext4_map_blocks.
656 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
658 #define F2FS_MAP_NEW (1 << BH_New)
659 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
660 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
661 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
664 struct f2fs_map_blocks {
668 unsigned int m_flags;
669 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
670 pgoff_t *m_next_extent; /* point to next possible extent */
672 bool m_may_create; /* indicate it is from write path */
675 /* for flag in get_data_block */
677 F2FS_GET_BLOCK_DEFAULT,
678 F2FS_GET_BLOCK_FIEMAP,
681 F2FS_GET_BLOCK_PRE_DIO,
682 F2FS_GET_BLOCK_PRE_AIO,
683 F2FS_GET_BLOCK_PRECACHE,
687 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
689 #define FADVISE_COLD_BIT 0x01
690 #define FADVISE_LOST_PINO_BIT 0x02
691 #define FADVISE_ENCRYPT_BIT 0x04
692 #define FADVISE_ENC_NAME_BIT 0x08
693 #define FADVISE_KEEP_SIZE_BIT 0x10
694 #define FADVISE_HOT_BIT 0x20
695 #define FADVISE_VERITY_BIT 0x40 /* reserved */
697 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
699 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
700 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
701 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
702 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
703 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
704 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
705 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
706 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
707 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
708 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
709 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
710 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
711 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
712 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
713 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
714 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
716 #define DEF_DIR_LEVEL 0
724 struct f2fs_inode_info {
725 struct inode vfs_inode; /* serve a vfs inode */
726 unsigned long i_flags; /* keep an inode flags for ioctl */
727 unsigned char i_advise; /* use to give file attribute hints */
728 unsigned char i_dir_level; /* use for dentry level for large dir */
729 unsigned int i_current_depth; /* only for directory depth */
730 /* for gc failure statistic */
731 unsigned int i_gc_failures[MAX_GC_FAILURE];
732 unsigned int i_pino; /* parent inode number */
733 umode_t i_acl_mode; /* keep file acl mode temporarily */
735 /* Use below internally in f2fs*/
736 unsigned long flags; /* use to pass per-file flags */
737 struct rw_semaphore i_sem; /* protect fi info */
738 atomic_t dirty_pages; /* # of dirty pages */
739 f2fs_hash_t chash; /* hash value of given file name */
740 unsigned int clevel; /* maximum level of given file name */
741 struct task_struct *task; /* lookup and create consistency */
742 struct task_struct *cp_task; /* separate cp/wb IO stats*/
743 nid_t i_xattr_nid; /* node id that contains xattrs */
744 loff_t last_disk_size; /* lastly written file size */
747 struct dquot *i_dquot[MAXQUOTAS];
749 /* quota space reservation, managed internally by quota code */
750 qsize_t i_reserved_quota;
752 struct list_head dirty_list; /* dirty list for dirs and files */
753 struct list_head gdirty_list; /* linked in global dirty list */
754 struct list_head inmem_ilist; /* list for inmem inodes */
755 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
756 struct task_struct *inmem_task; /* store inmemory task */
757 struct mutex inmem_lock; /* lock for inmemory pages */
758 struct extent_tree *extent_tree; /* cached extent_tree entry */
760 /* avoid racing between foreground op and gc */
761 struct rw_semaphore i_gc_rwsem[2];
762 struct rw_semaphore i_mmap_sem;
763 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
765 int i_extra_isize; /* size of extra space located in i_addr */
766 kprojid_t i_projid; /* id for project quota */
767 int i_inline_xattr_size; /* inline xattr size */
768 struct timespec i_crtime; /* inode creation time */
769 struct timespec i_disk_time[4]; /* inode disk times */
772 static inline void get_extent_info(struct extent_info *ext,
773 struct f2fs_extent *i_ext)
775 ext->fofs = le32_to_cpu(i_ext->fofs);
776 ext->blk = le32_to_cpu(i_ext->blk);
777 ext->len = le32_to_cpu(i_ext->len);
780 static inline void set_raw_extent(struct extent_info *ext,
781 struct f2fs_extent *i_ext)
783 i_ext->fofs = cpu_to_le32(ext->fofs);
784 i_ext->blk = cpu_to_le32(ext->blk);
785 i_ext->len = cpu_to_le32(ext->len);
788 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
789 u32 blk, unsigned int len)
796 static inline bool __is_discard_mergeable(struct discard_info *back,
797 struct discard_info *front, unsigned int max_len)
799 return (back->lstart + back->len == front->lstart) &&
800 (back->len + front->len <= max_len);
803 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
804 struct discard_info *back, unsigned int max_len)
806 return __is_discard_mergeable(back, cur, max_len);
809 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
810 struct discard_info *front, unsigned int max_len)
812 return __is_discard_mergeable(cur, front, max_len);
815 static inline bool __is_extent_mergeable(struct extent_info *back,
816 struct extent_info *front)
818 return (back->fofs + back->len == front->fofs &&
819 back->blk + back->len == front->blk);
822 static inline bool __is_back_mergeable(struct extent_info *cur,
823 struct extent_info *back)
825 return __is_extent_mergeable(back, cur);
828 static inline bool __is_front_mergeable(struct extent_info *cur,
829 struct extent_info *front)
831 return __is_extent_mergeable(cur, front);
834 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
835 static inline void __try_update_largest_extent(struct extent_tree *et,
836 struct extent_node *en)
838 if (en->ei.len > et->largest.len) {
839 et->largest = en->ei;
840 et->largest_updated = true;
845 * For free nid management
848 FREE_NID, /* newly added to free nid list */
849 PREALLOC_NID, /* it is preallocated */
853 struct f2fs_nm_info {
854 block_t nat_blkaddr; /* base disk address of NAT */
855 nid_t max_nid; /* maximum possible node ids */
856 nid_t available_nids; /* # of available node ids */
857 nid_t next_scan_nid; /* the next nid to be scanned */
858 unsigned int ram_thresh; /* control the memory footprint */
859 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
860 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
862 /* NAT cache management */
863 struct radix_tree_root nat_root;/* root of the nat entry cache */
864 struct radix_tree_root nat_set_root;/* root of the nat set cache */
865 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
866 struct list_head nat_entries; /* cached nat entry list (clean) */
867 spinlock_t nat_list_lock; /* protect clean nat entry list */
868 unsigned int nat_cnt; /* the # of cached nat entries */
869 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
870 unsigned int nat_blocks; /* # of nat blocks */
872 /* free node ids management */
873 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
874 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
875 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
876 spinlock_t nid_list_lock; /* protect nid lists ops */
877 struct mutex build_lock; /* lock for build free nids */
878 unsigned char **free_nid_bitmap;
879 unsigned char *nat_block_bitmap;
880 unsigned short *free_nid_count; /* free nid count of NAT block */
883 char *nat_bitmap; /* NAT bitmap pointer */
885 unsigned int nat_bits_blocks; /* # of nat bits blocks */
886 unsigned char *nat_bits; /* NAT bits blocks */
887 unsigned char *full_nat_bits; /* full NAT pages */
888 unsigned char *empty_nat_bits; /* empty NAT pages */
889 #ifdef CONFIG_F2FS_CHECK_FS
890 char *nat_bitmap_mir; /* NAT bitmap mirror */
892 int bitmap_size; /* bitmap size */
896 * this structure is used as one of function parameters.
897 * all the information are dedicated to a given direct node block determined
898 * by the data offset in a file.
900 struct dnode_of_data {
901 struct inode *inode; /* vfs inode pointer */
902 struct page *inode_page; /* its inode page, NULL is possible */
903 struct page *node_page; /* cached direct node page */
904 nid_t nid; /* node id of the direct node block */
905 unsigned int ofs_in_node; /* data offset in the node page */
906 bool inode_page_locked; /* inode page is locked or not */
907 bool node_changed; /* is node block changed */
908 char cur_level; /* level of hole node page */
909 char max_level; /* level of current page located */
910 block_t data_blkaddr; /* block address of the node block */
913 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
914 struct page *ipage, struct page *npage, nid_t nid)
916 memset(dn, 0, sizeof(*dn));
918 dn->inode_page = ipage;
919 dn->node_page = npage;
926 * By default, there are 6 active log areas across the whole main area.
927 * When considering hot and cold data separation to reduce cleaning overhead,
928 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
930 * In the current design, you should not change the numbers intentionally.
931 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
932 * logs individually according to the underlying devices. (default: 6)
933 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
934 * data and 8 for node logs.
936 #define NR_CURSEG_DATA_TYPE (3)
937 #define NR_CURSEG_NODE_TYPE (3)
938 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
941 CURSEG_HOT_DATA = 0, /* directory entry blocks */
942 CURSEG_WARM_DATA, /* data blocks */
943 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
944 CURSEG_HOT_NODE, /* direct node blocks of directory files */
945 CURSEG_WARM_NODE, /* direct node blocks of normal files */
946 CURSEG_COLD_NODE, /* indirect node blocks */
951 struct completion wait;
952 struct llist_node llnode;
957 struct flush_cmd_control {
958 struct task_struct *f2fs_issue_flush; /* flush thread */
959 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
960 atomic_t issued_flush; /* # of issued flushes */
961 atomic_t queued_flush; /* # of queued flushes */
962 struct llist_head issue_list; /* list for command issue */
963 struct llist_node *dispatch_list; /* list for command dispatch */
966 struct f2fs_sm_info {
967 struct sit_info *sit_info; /* whole segment information */
968 struct free_segmap_info *free_info; /* free segment information */
969 struct dirty_seglist_info *dirty_info; /* dirty segment information */
970 struct curseg_info *curseg_array; /* active segment information */
972 struct rw_semaphore curseg_lock; /* for preventing curseg change */
974 block_t seg0_blkaddr; /* block address of 0'th segment */
975 block_t main_blkaddr; /* start block address of main area */
976 block_t ssa_blkaddr; /* start block address of SSA area */
978 unsigned int segment_count; /* total # of segments */
979 unsigned int main_segments; /* # of segments in main area */
980 unsigned int reserved_segments; /* # of reserved segments */
981 unsigned int ovp_segments; /* # of overprovision segments */
983 /* a threshold to reclaim prefree segments */
984 unsigned int rec_prefree_segments;
986 /* for batched trimming */
987 unsigned int trim_sections; /* # of sections to trim */
989 struct list_head sit_entry_set; /* sit entry set list */
991 unsigned int ipu_policy; /* in-place-update policy */
992 unsigned int min_ipu_util; /* in-place-update threshold */
993 unsigned int min_fsync_blocks; /* threshold for fsync */
994 unsigned int min_seq_blocks; /* threshold for sequential blocks */
995 unsigned int min_hot_blocks; /* threshold for hot block allocation */
996 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
998 /* for flush command control */
999 struct flush_cmd_control *fcc_info;
1001 /* for discard command control */
1002 struct discard_cmd_control *dcc_info;
1009 * COUNT_TYPE for monitoring
1011 * f2fs monitors the number of several block types such as on-writeback,
1012 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1014 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1034 * The below are the page types of bios used in submit_bio().
1035 * The available types are:
1036 * DATA User data pages. It operates as async mode.
1037 * NODE Node pages. It operates as async mode.
1038 * META FS metadata pages such as SIT, NAT, CP.
1039 * NR_PAGE_TYPE The number of page types.
1040 * META_FLUSH Make sure the previous pages are written
1041 * with waiting the bio's completion
1042 * ... Only can be used with META.
1044 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1051 INMEM, /* the below types are used by tracepoints only. */
1060 HOT = 0, /* must be zero for meta bio */
1066 enum need_lock_type {
1072 enum cp_reason_type {
1086 APP_DIRECT_IO, /* app direct IOs */
1087 APP_BUFFERED_IO, /* app buffered IOs */
1088 APP_WRITE_IO, /* app write IOs */
1089 APP_MAPPED_IO, /* app mapped IOs */
1090 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1091 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1092 FS_META_IO, /* meta IOs from kworker/reclaimer */
1093 FS_GC_DATA_IO, /* data IOs from forground gc */
1094 FS_GC_NODE_IO, /* node IOs from forground gc */
1095 FS_CP_DATA_IO, /* data IOs from checkpoint */
1096 FS_CP_NODE_IO, /* node IOs from checkpoint */
1097 FS_CP_META_IO, /* meta IOs from checkpoint */
1098 FS_DISCARD, /* discard */
1102 struct f2fs_io_info {
1103 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1104 nid_t ino; /* inode number */
1105 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1106 enum temp_type temp; /* contains HOT/WARM/COLD */
1107 int op; /* contains REQ_OP_ */
1108 int op_flags; /* req_flag_bits */
1109 block_t new_blkaddr; /* new block address to be written */
1110 block_t old_blkaddr; /* old block address before Cow */
1111 struct page *page; /* page to be written */
1112 struct page *encrypted_page; /* encrypted page */
1113 struct list_head list; /* serialize IOs */
1114 bool submitted; /* indicate IO submission */
1115 int need_lock; /* indicate we need to lock cp_rwsem */
1116 bool in_list; /* indicate fio is in io_list */
1117 bool is_por; /* indicate IO is from recovery or not */
1118 bool retry; /* need to reallocate block address */
1119 enum iostat_type io_type; /* io type */
1120 struct writeback_control *io_wbc; /* writeback control */
1121 struct bio **bio; /* bio for ipu */
1122 sector_t *last_block; /* last block number in bio */
1123 unsigned char version; /* version of the node */
1126 #define is_read_io(rw) ((rw) == READ)
1127 struct f2fs_bio_info {
1128 struct f2fs_sb_info *sbi; /* f2fs superblock */
1129 struct bio *bio; /* bios to merge */
1130 sector_t last_block_in_bio; /* last block number */
1131 struct f2fs_io_info fio; /* store buffered io info. */
1132 struct rw_semaphore io_rwsem; /* blocking op for bio */
1133 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1134 struct list_head io_list; /* track fios */
1137 #define FDEV(i) (sbi->devs[i])
1138 #define RDEV(i) (raw_super->devs[i])
1139 struct f2fs_dev_info {
1140 struct block_device *bdev;
1141 char path[MAX_PATH_LEN];
1142 unsigned int total_segments;
1145 #ifdef CONFIG_BLK_DEV_ZONED
1146 unsigned int nr_blkz; /* Total number of zones */
1147 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1152 DIR_INODE, /* for dirty dir inode */
1153 FILE_INODE, /* for dirty regular/symlink inode */
1154 DIRTY_META, /* for all dirtied inode metadata */
1155 ATOMIC_FILE, /* for all atomic files */
1159 /* for inner inode cache management */
1160 struct inode_management {
1161 struct radix_tree_root ino_root; /* ino entry array */
1162 spinlock_t ino_lock; /* for ino entry lock */
1163 struct list_head ino_list; /* inode list head */
1164 unsigned long ino_num; /* number of entries */
1167 /* For s_flag in struct f2fs_sb_info */
1169 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1170 SBI_IS_CLOSE, /* specify unmounting */
1171 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1172 SBI_POR_DOING, /* recovery is doing or not */
1173 SBI_NEED_SB_WRITE, /* need to recover superblock */
1174 SBI_NEED_CP, /* need to checkpoint */
1175 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1176 SBI_IS_RECOVERED, /* recovered orphan/data */
1177 SBI_CP_DISABLED, /* CP was disabled last mount */
1178 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1179 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1180 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1181 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1182 SBI_IS_RESIZEFS, /* resizefs is in process */
1191 UMOUNT_DISCARD_TIMEOUT,
1203 WHINT_MODE_OFF, /* not pass down write hints */
1204 WHINT_MODE_USER, /* try to pass down hints given by users */
1205 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1209 ALLOC_MODE_DEFAULT, /* stay default */
1210 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1214 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1215 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1216 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1219 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1220 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1221 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1223 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1226 struct f2fs_sb_info {
1227 struct super_block *sb; /* pointer to VFS super block */
1228 struct proc_dir_entry *s_proc; /* proc entry */
1229 struct f2fs_super_block *raw_super; /* raw super block pointer */
1230 struct rw_semaphore sb_lock; /* lock for raw super block */
1231 int valid_super_block; /* valid super block no */
1232 unsigned long s_flag; /* flags for sbi */
1233 struct mutex writepages; /* mutex for writepages() */
1235 #ifdef CONFIG_BLK_DEV_ZONED
1236 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1237 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1240 /* for node-related operations */
1241 struct f2fs_nm_info *nm_info; /* node manager */
1242 struct inode *node_inode; /* cache node blocks */
1244 /* for segment-related operations */
1245 struct f2fs_sm_info *sm_info; /* segment manager */
1247 /* for bio operations */
1248 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1249 /* keep migration IO order for LFS mode */
1250 struct rw_semaphore io_order_lock;
1251 mempool_t *write_io_dummy; /* Dummy pages */
1253 /* for checkpoint */
1254 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1255 int cur_cp_pack; /* remain current cp pack */
1256 spinlock_t cp_lock; /* for flag in ckpt */
1257 struct inode *meta_inode; /* cache meta blocks */
1258 struct mutex cp_mutex; /* checkpoint procedure lock */
1259 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1260 struct rw_semaphore node_write; /* locking node writes */
1261 struct rw_semaphore node_change; /* locking node change */
1262 wait_queue_head_t cp_wait;
1263 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1264 long interval_time[MAX_TIME]; /* to store thresholds */
1266 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1268 spinlock_t fsync_node_lock; /* for node entry lock */
1269 struct list_head fsync_node_list; /* node list head */
1270 unsigned int fsync_seg_id; /* sequence id */
1271 unsigned int fsync_node_num; /* number of node entries */
1273 /* for orphan inode, use 0'th array */
1274 unsigned int max_orphans; /* max orphan inodes */
1276 /* for inode management */
1277 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1278 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1279 struct mutex flush_lock; /* for flush exclusion */
1281 /* for extent tree cache */
1282 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1283 struct mutex extent_tree_lock; /* locking extent radix tree */
1284 struct list_head extent_list; /* lru list for shrinker */
1285 spinlock_t extent_lock; /* locking extent lru list */
1286 atomic_t total_ext_tree; /* extent tree count */
1287 struct list_head zombie_list; /* extent zombie tree list */
1288 atomic_t total_zombie_tree; /* extent zombie tree count */
1289 atomic_t total_ext_node; /* extent info count */
1291 /* basic filesystem units */
1292 unsigned int log_sectors_per_block; /* log2 sectors per block */
1293 unsigned int log_blocksize; /* log2 block size */
1294 unsigned int blocksize; /* block size */
1295 unsigned int root_ino_num; /* root inode number*/
1296 unsigned int node_ino_num; /* node inode number*/
1297 unsigned int meta_ino_num; /* meta inode number*/
1298 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1299 unsigned int blocks_per_seg; /* blocks per segment */
1300 unsigned int segs_per_sec; /* segments per section */
1301 unsigned int secs_per_zone; /* sections per zone */
1302 unsigned int total_sections; /* total section count */
1303 struct mutex resize_mutex; /* for resize exclusion */
1304 unsigned int total_node_count; /* total node block count */
1305 unsigned int total_valid_node_count; /* valid node block count */
1306 loff_t max_file_blocks; /* max block index of file */
1307 int dir_level; /* directory level */
1308 int readdir_ra; /* readahead inode in readdir */
1310 block_t user_block_count; /* # of user blocks */
1311 block_t total_valid_block_count; /* # of valid blocks */
1312 block_t discard_blks; /* discard command candidats */
1313 block_t last_valid_block_count; /* for recovery */
1314 block_t reserved_blocks; /* configurable reserved blocks */
1315 block_t current_reserved_blocks; /* current reserved blocks */
1317 /* Additional tracking for no checkpoint mode */
1318 block_t unusable_block_count; /* # of blocks saved by last cp */
1320 unsigned int nquota_files; /* # of quota sysfile */
1321 struct rw_semaphore quota_sem; /* blocking cp for flags */
1323 /* # of pages, see count_type */
1324 atomic_t nr_pages[NR_COUNT_TYPE];
1325 /* # of allocated blocks */
1326 struct percpu_counter alloc_valid_block_count;
1328 /* writeback control */
1329 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1331 /* valid inode count */
1332 struct percpu_counter total_valid_inode_count;
1334 struct f2fs_mount_info mount_opt; /* mount options */
1336 /* for cleaning operations */
1337 struct mutex gc_mutex; /* mutex for GC */
1338 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1339 unsigned int cur_victim_sec; /* current victim section num */
1340 unsigned int gc_mode; /* current GC state */
1341 unsigned int next_victim_seg[2]; /* next segment in victim section */
1342 unsigned int rapid_gc; /* is rapid GC running */
1343 /* for skip statistic */
1344 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1345 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1347 /* threshold for gc trials on pinned files */
1348 u64 gc_pin_file_threshold;
1350 /* maximum # of trials to find a victim segment for SSR and GC */
1351 unsigned int max_victim_search;
1352 /* migration granularity of garbage collection, unit: segment */
1353 unsigned int migration_granularity;
1356 * for stat information.
1357 * one is for the LFS mode, and the other is for the SSR mode.
1359 #ifdef CONFIG_F2FS_STAT_FS
1360 struct f2fs_stat_info *stat_info; /* FS status information */
1361 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1362 unsigned int segment_count[2]; /* # of allocated segments */
1363 unsigned int block_count[2]; /* # of allocated blocks */
1364 atomic_t inplace_count; /* # of inplace update */
1365 atomic64_t total_hit_ext; /* # of lookup extent cache */
1366 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1367 atomic64_t read_hit_largest; /* # of hit largest extent node */
1368 atomic64_t read_hit_cached; /* # of hit cached extent node */
1369 atomic_t inline_xattr; /* # of inline_xattr inodes */
1370 atomic_t inline_inode; /* # of inline_data inodes */
1371 atomic_t inline_dir; /* # of inline_dentry inodes */
1372 atomic_t aw_cnt; /* # of atomic writes */
1373 atomic_t vw_cnt; /* # of volatile writes */
1374 atomic_t max_aw_cnt; /* max # of atomic writes */
1375 atomic_t max_vw_cnt; /* max # of volatile writes */
1376 int bg_gc; /* background gc calls */
1377 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1378 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1379 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1381 spinlock_t stat_lock; /* lock for stat operations */
1383 /* For app/fs IO statistics */
1384 spinlock_t iostat_lock;
1385 unsigned long long write_iostat[NR_IO_TYPE];
1388 /* For sysfs suppport */
1389 struct kobject s_kobj;
1390 struct completion s_kobj_unregister;
1392 /* For shrinker support */
1393 struct list_head s_list;
1394 int s_ndevs; /* number of devices */
1395 struct f2fs_dev_info *devs; /* for device list */
1396 unsigned int dirty_device; /* for checkpoint data flush */
1397 spinlock_t dev_lock; /* protect dirty_device */
1398 struct mutex umount_mutex;
1399 unsigned int shrinker_run_no;
1401 /* For write statistics */
1402 u64 sectors_written_start;
1405 /* Reference to checksum algorithm driver via cryptoapi */
1406 struct crypto_shash *s_chksum_driver;
1408 /* Precomputed FS UUID checksum for seeding other checksums */
1409 __u32 s_chksum_seed;
1411 struct list_head list;
1414 struct f2fs_private_dio {
1415 struct inode *inode;
1417 bio_end_io_t *orig_end_io;
1421 #ifdef CONFIG_F2FS_FAULT_INJECTION
1422 #define f2fs_show_injection_info(type) \
1423 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \
1424 KERN_INFO, f2fs_fault_name[type], \
1425 __func__, __builtin_return_address(0))
1426 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1428 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1430 if (!ffi->inject_rate)
1433 if (!IS_FAULT_SET(ffi, type))
1436 atomic_inc(&ffi->inject_ops);
1437 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1438 atomic_set(&ffi->inject_ops, 0);
1444 #define f2fs_show_injection_info(type) do { } while (0)
1445 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1452 * Test if the mounted volume is a multi-device volume.
1453 * - For a single regular disk volume, sbi->s_ndevs is 0.
1454 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1455 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1457 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1459 return sbi->s_ndevs > 1;
1462 /* For write statistics. Suppose sector size is 512 bytes,
1463 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1465 #define BD_PART_WRITTEN(s) \
1466 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1467 (s)->sectors_written_start) >> 1)
1469 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1471 unsigned long now = jiffies;
1473 sbi->last_time[type] = now;
1475 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1476 if (type == REQ_TIME) {
1477 sbi->last_time[DISCARD_TIME] = now;
1478 sbi->last_time[GC_TIME] = now;
1482 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1484 unsigned long interval = sbi->interval_time[type] * HZ;
1486 return time_after(jiffies, sbi->last_time[type] + interval);
1489 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1492 unsigned long interval = sbi->interval_time[type] * HZ;
1493 unsigned int wait_ms = 0;
1496 delta = (sbi->last_time[type] + interval) - jiffies;
1498 wait_ms = jiffies_to_msecs(delta);
1506 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1507 const void *address, unsigned int length)
1510 struct shash_desc shash;
1515 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1517 desc.shash.tfm = sbi->s_chksum_driver;
1518 desc.shash.flags = 0;
1519 *(u32 *)desc.ctx = crc;
1521 err = crypto_shash_update(&desc.shash, address, length);
1524 return *(u32 *)desc.ctx;
1527 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1528 unsigned int length)
1530 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1533 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1534 void *buf, size_t buf_size)
1536 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1539 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1540 const void *address, unsigned int length)
1542 return __f2fs_crc32(sbi, crc, address, length);
1545 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1547 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1550 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1552 return sb->s_fs_info;
1555 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1557 return F2FS_SB(inode->i_sb);
1560 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1562 return F2FS_I_SB(mapping->host);
1565 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1567 return F2FS_M_SB(page_file_mapping(page));
1570 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1572 return (struct f2fs_super_block *)(sbi->raw_super);
1575 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1577 return (struct f2fs_checkpoint *)(sbi->ckpt);
1580 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1582 return (struct f2fs_node *)page_address(page);
1585 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1587 return &((struct f2fs_node *)page_address(page))->i;
1590 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1592 return (struct f2fs_nm_info *)(sbi->nm_info);
1595 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1597 return (struct f2fs_sm_info *)(sbi->sm_info);
1600 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1602 return (struct sit_info *)(SM_I(sbi)->sit_info);
1605 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1607 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1610 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1612 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1615 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1617 return sbi->meta_inode->i_mapping;
1620 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1622 return sbi->node_inode->i_mapping;
1625 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1627 return test_bit(type, &sbi->s_flag);
1630 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1632 set_bit(type, &sbi->s_flag);
1635 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1637 clear_bit(type, &sbi->s_flag);
1640 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1642 return le64_to_cpu(cp->checkpoint_ver);
1645 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1647 if (type < F2FS_MAX_QUOTAS)
1648 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1652 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1654 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1655 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1658 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1660 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1662 return ckpt_flags & f;
1665 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1667 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1670 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1672 unsigned int ckpt_flags;
1674 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1676 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1679 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1681 unsigned long flags;
1683 spin_lock_irqsave(&sbi->cp_lock, flags);
1684 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1685 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1688 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1690 unsigned int ckpt_flags;
1692 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1694 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1697 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1699 unsigned long flags;
1701 spin_lock_irqsave(&sbi->cp_lock, flags);
1702 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1703 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1706 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1708 unsigned long flags;
1709 unsigned char *nat_bits;
1712 * In order to re-enable nat_bits we need to call fsck.f2fs by
1713 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
1714 * so let's rely on regular fsck or unclean shutdown.
1718 spin_lock_irqsave(&sbi->cp_lock, flags);
1719 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1720 nat_bits = NM_I(sbi)->nat_bits;
1721 NM_I(sbi)->nat_bits = NULL;
1723 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1728 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1729 struct cp_control *cpc)
1731 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1733 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1736 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1738 down_read(&sbi->cp_rwsem);
1741 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1743 return down_read_trylock(&sbi->cp_rwsem);
1746 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1748 up_read(&sbi->cp_rwsem);
1751 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1753 down_write(&sbi->cp_rwsem);
1756 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1758 up_write(&sbi->cp_rwsem);
1761 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1763 int reason = CP_SYNC;
1765 if (test_opt(sbi, FASTBOOT))
1766 reason = CP_FASTBOOT;
1767 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1772 static inline bool __remain_node_summaries(int reason)
1774 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1777 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1779 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1780 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1784 * Check whether the inode has blocks or not
1786 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1788 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1790 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1793 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1795 return ofs == XATTR_NODE_OFFSET;
1798 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1799 struct inode *inode, bool cap)
1803 if (!test_opt(sbi, RESERVE_ROOT))
1805 if (IS_NOQUOTA(inode))
1807 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1809 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1810 in_group_p(F2FS_OPTION(sbi).s_resgid))
1812 if (cap && capable(CAP_SYS_RESOURCE))
1817 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1818 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1819 struct inode *inode, blkcnt_t *count)
1821 blkcnt_t diff = 0, release = 0;
1822 block_t avail_user_block_count;
1825 ret = dquot_reserve_block(inode, *count);
1829 if (time_to_inject(sbi, FAULT_BLOCK)) {
1830 f2fs_show_injection_info(FAULT_BLOCK);
1836 * let's increase this in prior to actual block count change in order
1837 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1839 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1841 spin_lock(&sbi->stat_lock);
1842 sbi->total_valid_block_count += (block_t)(*count);
1843 avail_user_block_count = sbi->user_block_count -
1844 sbi->current_reserved_blocks;
1846 if (!__allow_reserved_blocks(sbi, inode, true))
1847 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1848 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1849 if (avail_user_block_count > sbi->unusable_block_count)
1850 avail_user_block_count -= sbi->unusable_block_count;
1852 avail_user_block_count = 0;
1854 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1855 diff = sbi->total_valid_block_count - avail_user_block_count;
1860 sbi->total_valid_block_count -= diff;
1862 spin_unlock(&sbi->stat_lock);
1866 spin_unlock(&sbi->stat_lock);
1868 if (unlikely(release)) {
1869 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1870 dquot_release_reservation_block(inode, release);
1872 f2fs_i_blocks_write(inode, *count, true, true);
1876 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1878 dquot_release_reservation_block(inode, release);
1883 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
1885 #define f2fs_err(sbi, fmt, ...) \
1886 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
1887 #define f2fs_warn(sbi, fmt, ...) \
1888 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
1889 #define f2fs_notice(sbi, fmt, ...) \
1890 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
1891 #define f2fs_info(sbi, fmt, ...) \
1892 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
1893 #define f2fs_debug(sbi, fmt, ...) \
1894 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
1896 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1897 struct inode *inode,
1900 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1902 spin_lock(&sbi->stat_lock);
1903 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1904 sbi->total_valid_block_count -= (block_t)count;
1905 if (sbi->reserved_blocks &&
1906 sbi->current_reserved_blocks < sbi->reserved_blocks)
1907 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1908 sbi->current_reserved_blocks + count);
1909 spin_unlock(&sbi->stat_lock);
1910 if (unlikely(inode->i_blocks < sectors)) {
1911 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
1913 (unsigned long long)inode->i_blocks,
1914 (unsigned long long)sectors);
1915 set_sbi_flag(sbi, SBI_NEED_FSCK);
1918 f2fs_i_blocks_write(inode, count, false, true);
1921 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1923 atomic_inc(&sbi->nr_pages[count_type]);
1925 if (count_type == F2FS_DIRTY_DENTS ||
1926 count_type == F2FS_DIRTY_NODES ||
1927 count_type == F2FS_DIRTY_META ||
1928 count_type == F2FS_DIRTY_QDATA ||
1929 count_type == F2FS_DIRTY_IMETA)
1930 set_sbi_flag(sbi, SBI_IS_DIRTY);
1933 static inline void inode_inc_dirty_pages(struct inode *inode)
1935 atomic_inc(&F2FS_I(inode)->dirty_pages);
1936 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1937 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1938 if (IS_NOQUOTA(inode))
1939 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1942 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1944 atomic_dec(&sbi->nr_pages[count_type]);
1947 static inline void inode_dec_dirty_pages(struct inode *inode)
1949 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1950 !S_ISLNK(inode->i_mode))
1953 atomic_dec(&F2FS_I(inode)->dirty_pages);
1954 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1955 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1956 if (IS_NOQUOTA(inode))
1957 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1960 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1962 return atomic_read(&sbi->nr_pages[count_type]);
1965 static inline int get_dirty_pages(struct inode *inode)
1967 return atomic_read(&F2FS_I(inode)->dirty_pages);
1970 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1972 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1973 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1974 sbi->log_blocks_per_seg;
1976 return segs / sbi->segs_per_sec;
1979 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1981 return sbi->total_valid_block_count;
1984 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1986 return sbi->discard_blks;
1989 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1991 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1993 /* return NAT or SIT bitmap */
1994 if (flag == NAT_BITMAP)
1995 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1996 else if (flag == SIT_BITMAP)
1997 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2002 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2004 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2007 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2009 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2012 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2013 offset = (flag == SIT_BITMAP) ?
2014 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2016 * if large_nat_bitmap feature is enabled, leave checksum
2017 * protection for all nat/sit bitmaps.
2019 return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32);
2022 if (__cp_payload(sbi) > 0) {
2023 if (flag == NAT_BITMAP)
2024 return &ckpt->sit_nat_version_bitmap;
2026 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2028 offset = (flag == NAT_BITMAP) ?
2029 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2030 return &ckpt->sit_nat_version_bitmap + offset;
2034 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2036 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2038 if (sbi->cur_cp_pack == 2)
2039 start_addr += sbi->blocks_per_seg;
2043 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2045 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2047 if (sbi->cur_cp_pack == 1)
2048 start_addr += sbi->blocks_per_seg;
2052 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2054 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2057 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2059 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2062 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2063 struct inode *inode, bool is_inode)
2065 block_t valid_block_count;
2066 unsigned int valid_node_count, user_block_count;
2071 err = dquot_alloc_inode(inode);
2076 err = dquot_reserve_block(inode, 1);
2081 if (time_to_inject(sbi, FAULT_BLOCK)) {
2082 f2fs_show_injection_info(FAULT_BLOCK);
2086 spin_lock(&sbi->stat_lock);
2088 valid_block_count = sbi->total_valid_block_count +
2089 sbi->current_reserved_blocks + 1;
2091 if (!__allow_reserved_blocks(sbi, inode, false))
2092 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2093 user_block_count = sbi->user_block_count;
2094 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2095 user_block_count -= sbi->unusable_block_count;
2097 if (unlikely(valid_block_count > user_block_count)) {
2098 spin_unlock(&sbi->stat_lock);
2102 valid_node_count = sbi->total_valid_node_count + 1;
2103 if (unlikely(valid_node_count > sbi->total_node_count)) {
2104 spin_unlock(&sbi->stat_lock);
2108 sbi->total_valid_node_count++;
2109 sbi->total_valid_block_count++;
2110 spin_unlock(&sbi->stat_lock);
2114 f2fs_mark_inode_dirty_sync(inode, true);
2116 f2fs_i_blocks_write(inode, 1, true, true);
2119 percpu_counter_inc(&sbi->alloc_valid_block_count);
2125 dquot_free_inode(inode);
2127 dquot_release_reservation_block(inode, 1);
2132 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2133 struct inode *inode, bool is_inode)
2135 spin_lock(&sbi->stat_lock);
2137 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2138 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2140 sbi->total_valid_node_count--;
2141 sbi->total_valid_block_count--;
2142 if (sbi->reserved_blocks &&
2143 sbi->current_reserved_blocks < sbi->reserved_blocks)
2144 sbi->current_reserved_blocks++;
2146 spin_unlock(&sbi->stat_lock);
2149 dquot_free_inode(inode);
2151 if (unlikely(inode->i_blocks == 0)) {
2152 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu",
2154 (unsigned long long)inode->i_blocks);
2155 set_sbi_flag(sbi, SBI_NEED_FSCK);
2158 f2fs_i_blocks_write(inode, 1, false, true);
2162 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2164 return sbi->total_valid_node_count;
2167 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2169 percpu_counter_inc(&sbi->total_valid_inode_count);
2172 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2174 percpu_counter_dec(&sbi->total_valid_inode_count);
2177 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2179 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2182 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2183 pgoff_t index, bool for_write)
2187 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2189 page = find_get_page_flags(mapping, index,
2190 FGP_LOCK | FGP_ACCESSED);
2192 page = find_lock_page(mapping, index);
2196 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2197 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
2203 return grab_cache_page(mapping, index);
2204 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2207 static inline struct page *f2fs_pagecache_get_page(
2208 struct address_space *mapping, pgoff_t index,
2209 int fgp_flags, gfp_t gfp_mask)
2211 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2212 f2fs_show_injection_info(FAULT_PAGE_GET);
2216 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2219 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2221 char *src_kaddr = kmap(src);
2222 char *dst_kaddr = kmap(dst);
2224 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2229 static inline void f2fs_put_page(struct page *page, int unlock)
2235 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2241 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2244 f2fs_put_page(dn->node_page, 1);
2245 if (dn->inode_page && dn->node_page != dn->inode_page)
2246 f2fs_put_page(dn->inode_page, 0);
2247 dn->node_page = NULL;
2248 dn->inode_page = NULL;
2251 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2254 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2257 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2262 entry = kmem_cache_alloc(cachep, flags);
2264 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2268 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
2269 int npages, bool no_fail)
2274 /* No failure on bio allocation */
2275 bio = bio_alloc(GFP_NOIO, npages);
2277 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
2280 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
2281 f2fs_show_injection_info(FAULT_ALLOC_BIO);
2285 return bio_alloc(GFP_KERNEL, npages);
2288 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2290 if (sbi->gc_mode == GC_URGENT)
2293 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2294 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2295 get_pages(sbi, F2FS_WB_CP_DATA) ||
2296 get_pages(sbi, F2FS_DIO_READ) ||
2297 get_pages(sbi, F2FS_DIO_WRITE))
2300 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2301 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2304 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2305 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2308 return f2fs_time_over(sbi, type);
2311 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2312 unsigned long index, void *item)
2314 while (radix_tree_insert(root, index, item))
2318 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2320 static inline bool IS_INODE(struct page *page)
2322 struct f2fs_node *p = F2FS_NODE(page);
2324 return RAW_IS_INODE(p);
2327 static inline int offset_in_addr(struct f2fs_inode *i)
2329 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2330 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2333 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2335 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2338 static inline int f2fs_has_extra_attr(struct inode *inode);
2339 static inline block_t datablock_addr(struct inode *inode,
2340 struct page *node_page, unsigned int offset)
2342 struct f2fs_node *raw_node;
2345 bool is_inode = IS_INODE(node_page);
2347 raw_node = F2FS_NODE(node_page);
2349 /* from GC path only */
2352 base = offset_in_addr(&raw_node->i);
2353 else if (f2fs_has_extra_attr(inode))
2354 base = get_extra_isize(inode);
2357 addr_array = blkaddr_in_node(raw_node);
2358 return le32_to_cpu(addr_array[base + offset]);
2361 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2366 mask = 1 << (7 - (nr & 0x07));
2367 return mask & *addr;
2370 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2375 mask = 1 << (7 - (nr & 0x07));
2379 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2384 mask = 1 << (7 - (nr & 0x07));
2388 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2394 mask = 1 << (7 - (nr & 0x07));
2400 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2406 mask = 1 << (7 - (nr & 0x07));
2412 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2417 mask = 1 << (7 - (nr & 0x07));
2422 * On-disk inode flags (f2fs_inode::i_flags)
2424 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2425 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2426 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2427 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2428 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2429 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2430 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2431 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2433 /* Flags that should be inherited by new inodes from their parent. */
2434 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2435 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL)
2437 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2438 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL))
2440 /* Flags that are appropriate for non-directories/regular files. */
2441 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2443 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2447 else if (S_ISREG(mode))
2448 return flags & F2FS_REG_FLMASK;
2450 return flags & F2FS_OTHER_FLMASK;
2453 /* used for f2fs_inode_info->flags */
2455 FI_NEW_INODE, /* indicate newly allocated inode */
2456 FI_DIRTY_INODE, /* indicate inode is dirty or not */
2457 FI_AUTO_RECOVER, /* indicate inode is recoverable */
2458 FI_DIRTY_DIR, /* indicate directory has dirty pages */
2459 FI_INC_LINK, /* need to increment i_nlink */
2460 FI_ACL_MODE, /* indicate acl mode */
2461 FI_NO_ALLOC, /* should not allocate any blocks */
2462 FI_FREE_NID, /* free allocated nide */
2463 FI_NO_EXTENT, /* not to use the extent cache */
2464 FI_INLINE_XATTR, /* used for inline xattr */
2465 FI_INLINE_DATA, /* used for inline data*/
2466 FI_INLINE_DENTRY, /* used for inline dentry */
2467 FI_APPEND_WRITE, /* inode has appended data */
2468 FI_UPDATE_WRITE, /* inode has in-place-update data */
2469 FI_NEED_IPU, /* used for ipu per file */
2470 FI_ATOMIC_FILE, /* indicate atomic file */
2471 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
2472 FI_VOLATILE_FILE, /* indicate volatile file */
2473 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
2474 FI_DROP_CACHE, /* drop dirty page cache */
2475 FI_DATA_EXIST, /* indicate data exists */
2476 FI_INLINE_DOTS, /* indicate inline dot dentries */
2477 FI_DO_DEFRAG, /* indicate defragment is running */
2478 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
2479 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
2480 FI_HOT_DATA, /* indicate file is hot */
2481 FI_EXTRA_ATTR, /* indicate file has extra attribute */
2482 FI_PROJ_INHERIT, /* indicate file inherits projectid */
2483 FI_PIN_FILE, /* indicate file should not be gced */
2484 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
2487 static inline void __mark_inode_dirty_flag(struct inode *inode,
2491 case FI_INLINE_XATTR:
2492 case FI_INLINE_DATA:
2493 case FI_INLINE_DENTRY:
2499 case FI_INLINE_DOTS:
2501 f2fs_mark_inode_dirty_sync(inode, true);
2505 static inline void set_inode_flag(struct inode *inode, int flag)
2507 if (!test_bit(flag, &F2FS_I(inode)->flags))
2508 set_bit(flag, &F2FS_I(inode)->flags);
2509 __mark_inode_dirty_flag(inode, flag, true);
2512 static inline int is_inode_flag_set(struct inode *inode, int flag)
2514 return test_bit(flag, &F2FS_I(inode)->flags);
2517 static inline void clear_inode_flag(struct inode *inode, int flag)
2519 if (test_bit(flag, &F2FS_I(inode)->flags))
2520 clear_bit(flag, &F2FS_I(inode)->flags);
2521 __mark_inode_dirty_flag(inode, flag, false);
2524 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2526 F2FS_I(inode)->i_acl_mode = mode;
2527 set_inode_flag(inode, FI_ACL_MODE);
2528 f2fs_mark_inode_dirty_sync(inode, false);
2531 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2537 f2fs_mark_inode_dirty_sync(inode, true);
2540 static inline void f2fs_i_blocks_write(struct inode *inode,
2541 block_t diff, bool add, bool claim)
2543 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2544 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2546 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2549 dquot_claim_block(inode, diff);
2551 dquot_alloc_block_nofail(inode, diff);
2553 dquot_free_block(inode, diff);
2556 f2fs_mark_inode_dirty_sync(inode, true);
2557 if (clean || recover)
2558 set_inode_flag(inode, FI_AUTO_RECOVER);
2561 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2563 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2564 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2566 if (i_size_read(inode) == i_size)
2569 i_size_write(inode, i_size);
2570 f2fs_mark_inode_dirty_sync(inode, true);
2571 if (clean || recover)
2572 set_inode_flag(inode, FI_AUTO_RECOVER);
2575 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2577 F2FS_I(inode)->i_current_depth = depth;
2578 f2fs_mark_inode_dirty_sync(inode, true);
2581 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2584 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2585 f2fs_mark_inode_dirty_sync(inode, true);
2588 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2590 F2FS_I(inode)->i_xattr_nid = xnid;
2591 f2fs_mark_inode_dirty_sync(inode, true);
2594 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2596 F2FS_I(inode)->i_pino = pino;
2597 f2fs_mark_inode_dirty_sync(inode, true);
2600 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2602 struct f2fs_inode_info *fi = F2FS_I(inode);
2604 if (ri->i_inline & F2FS_INLINE_XATTR)
2605 set_bit(FI_INLINE_XATTR, &fi->flags);
2606 if (ri->i_inline & F2FS_INLINE_DATA)
2607 set_bit(FI_INLINE_DATA, &fi->flags);
2608 if (ri->i_inline & F2FS_INLINE_DENTRY)
2609 set_bit(FI_INLINE_DENTRY, &fi->flags);
2610 if (ri->i_inline & F2FS_DATA_EXIST)
2611 set_bit(FI_DATA_EXIST, &fi->flags);
2612 if (ri->i_inline & F2FS_INLINE_DOTS)
2613 set_bit(FI_INLINE_DOTS, &fi->flags);
2614 if (ri->i_inline & F2FS_EXTRA_ATTR)
2615 set_bit(FI_EXTRA_ATTR, &fi->flags);
2616 if (ri->i_inline & F2FS_PIN_FILE)
2617 set_bit(FI_PIN_FILE, &fi->flags);
2620 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2624 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2625 ri->i_inline |= F2FS_INLINE_XATTR;
2626 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2627 ri->i_inline |= F2FS_INLINE_DATA;
2628 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2629 ri->i_inline |= F2FS_INLINE_DENTRY;
2630 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2631 ri->i_inline |= F2FS_DATA_EXIST;
2632 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2633 ri->i_inline |= F2FS_INLINE_DOTS;
2634 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2635 ri->i_inline |= F2FS_EXTRA_ATTR;
2636 if (is_inode_flag_set(inode, FI_PIN_FILE))
2637 ri->i_inline |= F2FS_PIN_FILE;
2640 static inline int f2fs_has_extra_attr(struct inode *inode)
2642 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2645 static inline int f2fs_has_inline_xattr(struct inode *inode)
2647 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2650 #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a))
2652 static inline unsigned int addrs_per_inode(struct inode *inode)
2654 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
2655 get_inline_xattr_addrs(inode);
2656 return ALIGN_DOWN(addrs, 1);
2659 static inline unsigned int addrs_per_block(struct inode *inode)
2661 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, 1);
2664 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2666 struct f2fs_inode *ri = F2FS_INODE(page);
2668 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2669 get_inline_xattr_addrs(inode)]);
2672 static inline int inline_xattr_size(struct inode *inode)
2674 if (f2fs_has_inline_xattr(inode))
2675 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2679 static inline int f2fs_has_inline_data(struct inode *inode)
2681 return is_inode_flag_set(inode, FI_INLINE_DATA);
2684 static inline int f2fs_exist_data(struct inode *inode)
2686 return is_inode_flag_set(inode, FI_DATA_EXIST);
2689 static inline int f2fs_has_inline_dots(struct inode *inode)
2691 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2694 static inline bool f2fs_is_pinned_file(struct inode *inode)
2696 return is_inode_flag_set(inode, FI_PIN_FILE);
2699 static inline bool f2fs_is_atomic_file(struct inode *inode)
2701 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2704 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2706 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2709 static inline bool f2fs_is_volatile_file(struct inode *inode)
2711 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2714 static inline bool f2fs_is_first_block_written(struct inode *inode)
2716 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2719 static inline bool f2fs_is_drop_cache(struct inode *inode)
2721 return is_inode_flag_set(inode, FI_DROP_CACHE);
2724 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2726 struct f2fs_inode *ri = F2FS_INODE(page);
2727 int extra_size = get_extra_isize(inode);
2729 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2732 static inline int f2fs_has_inline_dentry(struct inode *inode)
2734 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2737 static inline int is_file(struct inode *inode, int type)
2739 return F2FS_I(inode)->i_advise & type;
2742 static inline void set_file(struct inode *inode, int type)
2744 F2FS_I(inode)->i_advise |= type;
2745 f2fs_mark_inode_dirty_sync(inode, true);
2748 static inline void clear_file(struct inode *inode, int type)
2750 F2FS_I(inode)->i_advise &= ~type;
2751 f2fs_mark_inode_dirty_sync(inode, true);
2754 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2759 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2761 spin_lock(&sbi->inode_lock[DIRTY_META]);
2762 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2763 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2766 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2767 file_keep_isize(inode) ||
2768 i_size_read(inode) & ~PAGE_MASK)
2771 if (!timespec_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2773 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2775 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2777 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 3,
2778 &F2FS_I(inode)->i_crtime))
2781 down_read(&F2FS_I(inode)->i_sem);
2782 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2783 up_read(&F2FS_I(inode)->i_sem);
2788 static inline bool f2fs_readonly(struct super_block *sb)
2790 return sb->s_flags & MS_RDONLY;
2793 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2795 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2798 static inline bool is_dot_dotdot(const struct qstr *str)
2800 if (str->len == 1 && str->name[0] == '.')
2803 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2809 static inline bool f2fs_may_extent_tree(struct inode *inode)
2811 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2813 if (!test_opt(sbi, EXTENT_CACHE) ||
2814 is_inode_flag_set(inode, FI_NO_EXTENT))
2818 * for recovered files during mount do not create extents
2819 * if shrinker is not registered.
2821 if (list_empty(&sbi->s_list))
2824 return S_ISREG(inode->i_mode);
2827 static inline void *kvmalloc(size_t size, gfp_t flags)
2831 ret = kmalloc(size, flags | __GFP_NOWARN);
2833 ret = __vmalloc(size, flags, PAGE_KERNEL);
2837 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2838 size_t size, gfp_t flags)
2842 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2843 f2fs_show_injection_info(FAULT_KMALLOC);
2847 ret = kmalloc(size, flags);
2851 return kvmalloc(size, flags);
2854 static inline void *kvzalloc(size_t size, gfp_t flags)
2858 ret = kzalloc(size, flags | __GFP_NOWARN);
2860 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
2864 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2865 size_t size, gfp_t flags)
2867 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2870 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2871 size_t size, gfp_t flags)
2873 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2874 f2fs_show_injection_info(FAULT_KVMALLOC);
2878 return kvmalloc(size, flags);
2881 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2882 size_t size, gfp_t flags)
2884 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2887 static inline int get_extra_isize(struct inode *inode)
2889 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2892 static inline int get_inline_xattr_addrs(struct inode *inode)
2894 return F2FS_I(inode)->i_inline_xattr_size;
2897 #define f2fs_get_inode_mode(i) \
2898 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2899 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2901 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2902 (offsetof(struct f2fs_inode, i_extra_end) - \
2903 offsetof(struct f2fs_inode, i_extra_isize)) \
2905 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2906 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2907 ((offsetof(typeof(*(f2fs_inode)), field) + \
2908 sizeof((f2fs_inode)->field)) \
2909 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
2911 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2915 spin_lock(&sbi->iostat_lock);
2916 for (i = 0; i < NR_IO_TYPE; i++)
2917 sbi->write_iostat[i] = 0;
2918 spin_unlock(&sbi->iostat_lock);
2921 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2922 enum iostat_type type, unsigned long long io_bytes)
2924 if (!sbi->iostat_enable)
2926 spin_lock(&sbi->iostat_lock);
2927 sbi->write_iostat[type] += io_bytes;
2929 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2930 sbi->write_iostat[APP_BUFFERED_IO] =
2931 sbi->write_iostat[APP_WRITE_IO] -
2932 sbi->write_iostat[APP_DIRECT_IO];
2933 spin_unlock(&sbi->iostat_lock);
2936 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
2938 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
2940 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2941 block_t blkaddr, int type);
2942 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
2943 block_t blkaddr, int type)
2945 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
2946 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
2948 f2fs_bug_on(sbi, 1);
2952 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
2954 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
2959 static inline void f2fs_set_page_private(struct page *page,
2962 if (PagePrivate(page))
2966 SetPagePrivate(page);
2967 set_page_private(page, data);
2970 static inline void f2fs_clear_page_private(struct page *page)
2972 if (!PagePrivate(page))
2975 set_page_private(page, 0);
2976 ClearPagePrivate(page);
2977 f2fs_put_page(page, 0);
2983 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2984 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
2985 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
2986 int f2fs_truncate(struct inode *inode);
2987 int f2fs_getattr(struct vfsmount *mnt, struct dentry *dentry,
2988 struct kstat *stat);
2989 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2990 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2991 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2992 int f2fs_precache_extents(struct inode *inode);
2993 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2994 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2995 int f2fs_pin_file_control(struct inode *inode, bool inc);
3000 void f2fs_set_inode_flags(struct inode *inode);
3001 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3002 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3003 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3004 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3005 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3006 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3007 void f2fs_update_inode_page(struct inode *inode);
3008 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3009 void f2fs_evict_inode(struct inode *inode);
3010 void f2fs_handle_failed_inode(struct inode *inode);
3015 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3016 bool hot, bool set);
3017 struct dentry *f2fs_get_parent(struct dentry *child);
3022 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3023 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
3024 f2fs_hash_t namehash, int *max_slots,
3025 struct f2fs_dentry_ptr *d);
3026 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3027 unsigned int start_pos, struct fscrypt_str *fstr);
3028 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3029 struct f2fs_dentry_ptr *d);
3030 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3031 const struct qstr *new_name,
3032 const struct qstr *orig_name, struct page *dpage);
3033 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3034 unsigned int current_depth);
3035 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3036 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3037 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3038 struct fscrypt_name *fname, struct page **res_page);
3039 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3040 const struct qstr *child, struct page **res_page);
3041 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3042 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3043 struct page **page);
3044 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3045 struct page *page, struct inode *inode);
3046 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3047 const struct qstr *name, f2fs_hash_t name_hash,
3048 unsigned int bit_pos);
3049 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
3050 const struct qstr *orig_name,
3051 struct inode *inode, nid_t ino, umode_t mode);
3052 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
3053 struct inode *inode, nid_t ino, umode_t mode);
3054 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3055 struct inode *inode, nid_t ino, umode_t mode);
3056 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3057 struct inode *dir, struct inode *inode);
3058 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3059 bool f2fs_empty_dir(struct inode *dir);
3061 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3063 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3064 inode, inode->i_ino, inode->i_mode);
3070 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3071 void f2fs_inode_synced(struct inode *inode);
3072 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3073 int f2fs_quota_sync(struct super_block *sb, int type);
3074 void f2fs_quota_off_umount(struct super_block *sb);
3075 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3076 int f2fs_sync_fs(struct super_block *sb, int sync);
3077 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3082 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
3083 struct fscrypt_name *fname);
3088 struct dnode_of_data;
3091 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3092 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3093 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3094 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3095 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3096 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3097 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3098 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3099 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3100 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3101 struct node_info *ni);
3102 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3103 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3104 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3105 int f2fs_truncate_xattr_node(struct inode *inode);
3106 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3107 unsigned int seq_id);
3108 int f2fs_remove_inode_page(struct inode *inode);
3109 struct page *f2fs_new_inode_page(struct inode *inode);
3110 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3111 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3112 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3113 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3114 int f2fs_move_node_page(struct page *node_page, int gc_type);
3115 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3116 struct writeback_control *wbc, bool atomic,
3117 unsigned int *seq_id);
3118 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3119 struct writeback_control *wbc,
3120 bool do_balance, enum iostat_type io_type);
3121 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3122 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3123 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3124 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3125 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3126 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3127 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3128 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3129 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3130 unsigned int segno, struct f2fs_summary_block *sum);
3131 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3132 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3133 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3134 int __init f2fs_create_node_manager_caches(void);
3135 void f2fs_destroy_node_manager_caches(void);
3140 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3141 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3142 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3143 void f2fs_drop_inmem_pages(struct inode *inode);
3144 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3145 int f2fs_commit_inmem_pages(struct inode *inode);
3146 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3147 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
3148 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3149 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3150 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3151 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3152 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3153 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3154 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3155 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3156 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3157 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3158 struct cp_control *cpc);
3159 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3160 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3161 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3162 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3163 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3164 void allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3165 unsigned int start, unsigned int end);
3166 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3167 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3168 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3169 struct cp_control *cpc);
3170 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3171 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3173 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3174 enum iostat_type io_type);
3175 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3176 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3177 struct f2fs_io_info *fio);
3178 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3179 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3180 block_t old_blkaddr, block_t new_blkaddr,
3181 bool recover_curseg, bool recover_newaddr);
3182 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3183 block_t old_addr, block_t new_addr,
3184 unsigned char version, bool recover_curseg,
3185 bool recover_newaddr);
3186 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3187 block_t old_blkaddr, block_t *new_blkaddr,
3188 struct f2fs_summary *sum, int type,
3189 struct f2fs_io_info *fio, bool add_list);
3190 void f2fs_wait_on_page_writeback(struct page *page,
3191 enum page_type type, bool ordered, bool locked);
3192 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3193 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3195 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3196 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3197 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3198 unsigned int val, int alloc);
3199 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3200 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3201 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3202 int __init f2fs_create_segment_manager_caches(void);
3203 void f2fs_destroy_segment_manager_caches(void);
3204 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3205 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3206 enum page_type type, enum temp_type temp);
3211 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3212 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3213 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3214 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index);
3215 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3216 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3217 block_t blkaddr, int type);
3218 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3219 int type, bool sync);
3220 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3221 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3222 long nr_to_write, enum iostat_type io_type);
3223 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3224 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3225 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3226 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3227 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3228 unsigned int devidx, int type);
3229 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3230 unsigned int devidx, int type);
3231 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3232 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3233 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3234 void f2fs_add_orphan_inode(struct inode *inode);
3235 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3236 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3237 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3238 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3239 void f2fs_remove_dirty_inode(struct inode *inode);
3240 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3241 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
3242 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3243 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3244 int __init f2fs_create_checkpoint_caches(void);
3245 void f2fs_destroy_checkpoint_caches(void);
3250 int f2fs_init_post_read_processing(void);
3251 void f2fs_destroy_post_read_processing(void);
3252 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3253 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3254 struct inode *inode, struct page *page,
3255 nid_t ino, enum page_type type);
3256 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3257 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3258 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3259 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3260 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3261 block_t blk_addr, struct bio *bio);
3262 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3263 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3264 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3265 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3266 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3267 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3268 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3269 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3270 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3271 int op_flags, bool for_write);
3272 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3273 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3275 struct page *f2fs_get_new_data_page(struct inode *inode,
3276 struct page *ipage, pgoff_t index, bool new_i_size);
3277 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3278 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3279 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3280 int create, int flag);
3281 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3282 u64 start, u64 len);
3283 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3284 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3285 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3286 unsigned int length);
3287 int f2fs_release_page(struct page *page, gfp_t wait);
3288 #ifdef CONFIG_MIGRATION
3289 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3290 struct page *page, enum migrate_mode mode);
3292 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3293 void f2fs_clear_radix_tree_dirty_tag(struct page *page);
3298 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3299 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3300 void f2fs_gc_sbi_list_add(struct f2fs_sb_info *sbi);
3301 void f2fs_gc_sbi_list_del(struct f2fs_sb_info *sbi);
3302 void __init f2fs_init_rapid_gc(void);
3303 void __exit f2fs_destroy_rapid_gc(void);
3305 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3306 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3307 unsigned int segno);
3308 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3309 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3314 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3315 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3320 #ifdef CONFIG_F2FS_STAT_FS
3321 struct f2fs_stat_info {
3322 struct list_head stat_list;
3323 struct f2fs_sb_info *sbi;
3324 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3325 int main_area_segs, main_area_sections, main_area_zones;
3326 unsigned long long hit_largest, hit_cached, hit_rbtree;
3327 unsigned long long hit_total, total_ext;
3328 int ext_tree, zombie_tree, ext_node;
3329 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3330 int ndirty_data, ndirty_qdata;
3332 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3333 int nats, dirty_nats, sits, dirty_sits;
3334 int free_nids, avail_nids, alloc_nids;
3335 int total_count, utilization;
3336 int bg_gc, nr_wb_cp_data, nr_wb_data;
3337 int nr_rd_data, nr_rd_node, nr_rd_meta;
3338 int nr_dio_read, nr_dio_write;
3339 unsigned int io_skip_bggc, other_skip_bggc;
3340 int nr_flushing, nr_flushed, flush_list_empty;
3341 int nr_discarding, nr_discarded;
3343 unsigned int undiscard_blks;
3344 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3345 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3346 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3347 unsigned int bimodal, avg_vblocks;
3348 int util_free, util_valid, util_invalid;
3349 int rsvd_segs, overp_segs;
3350 int dirty_count, node_pages, meta_pages;
3351 int prefree_count, call_count, cp_count, bg_cp_count;
3352 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3353 int bg_node_segs, bg_data_segs;
3354 int tot_blks, data_blks, node_blks;
3355 int bg_data_blks, bg_node_blks;
3356 unsigned long long skipped_atomic_files[2];
3357 int curseg[NR_CURSEG_TYPE];
3358 int cursec[NR_CURSEG_TYPE];
3359 int curzone[NR_CURSEG_TYPE];
3361 unsigned int meta_count[META_MAX];
3362 unsigned int segment_count[2];
3363 unsigned int block_count[2];
3364 unsigned int inplace_count;
3365 unsigned long long base_mem, cache_mem, page_mem;
3368 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3370 return (struct f2fs_stat_info *)sbi->stat_info;
3373 #define stat_inc_cp_count(si) ((si)->cp_count++)
3374 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3375 #define stat_inc_call_count(si) ((si)->call_count++)
3376 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
3377 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3378 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3379 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3380 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3381 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3382 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3383 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3384 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3385 #define stat_inc_inline_xattr(inode) \
3387 if (f2fs_has_inline_xattr(inode)) \
3388 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3390 #define stat_dec_inline_xattr(inode) \
3392 if (f2fs_has_inline_xattr(inode)) \
3393 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3395 #define stat_inc_inline_inode(inode) \
3397 if (f2fs_has_inline_data(inode)) \
3398 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3400 #define stat_dec_inline_inode(inode) \
3402 if (f2fs_has_inline_data(inode)) \
3403 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3405 #define stat_inc_inline_dir(inode) \
3407 if (f2fs_has_inline_dentry(inode)) \
3408 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3410 #define stat_dec_inline_dir(inode) \
3412 if (f2fs_has_inline_dentry(inode)) \
3413 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3415 #define stat_inc_meta_count(sbi, blkaddr) \
3417 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3418 atomic_inc(&(sbi)->meta_count[META_CP]); \
3419 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3420 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3421 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3422 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3423 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3424 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3426 #define stat_inc_seg_type(sbi, curseg) \
3427 ((sbi)->segment_count[(curseg)->alloc_type]++)
3428 #define stat_inc_block_count(sbi, curseg) \
3429 ((sbi)->block_count[(curseg)->alloc_type]++)
3430 #define stat_inc_inplace_blocks(sbi) \
3431 (atomic_inc(&(sbi)->inplace_count))
3432 #define stat_inc_atomic_write(inode) \
3433 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3434 #define stat_dec_atomic_write(inode) \
3435 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3436 #define stat_update_max_atomic_write(inode) \
3438 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3439 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3441 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3443 #define stat_inc_volatile_write(inode) \
3444 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3445 #define stat_dec_volatile_write(inode) \
3446 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3447 #define stat_update_max_volatile_write(inode) \
3449 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3450 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3452 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3454 #define stat_inc_seg_count(sbi, type, gc_type) \
3456 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3458 if ((type) == SUM_TYPE_DATA) { \
3460 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3463 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3467 #define stat_inc_tot_blk_count(si, blks) \
3468 ((si)->tot_blks += (blks))
3470 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3472 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3473 stat_inc_tot_blk_count(si, blks); \
3474 si->data_blks += (blks); \
3475 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3478 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3480 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3481 stat_inc_tot_blk_count(si, blks); \
3482 si->node_blks += (blks); \
3483 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3486 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3487 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3488 void __init f2fs_create_root_stats(void);
3489 void f2fs_destroy_root_stats(void);
3491 #define stat_inc_cp_count(si) do { } while (0)
3492 #define stat_inc_bg_cp_count(si) do { } while (0)
3493 #define stat_inc_call_count(si) do { } while (0)
3494 #define stat_inc_bggc_count(si) do { } while (0)
3495 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3496 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3497 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3498 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3499 #define stat_inc_total_hit(sb) do { } while (0)
3500 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3501 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3502 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3503 #define stat_inc_inline_xattr(inode) do { } while (0)
3504 #define stat_dec_inline_xattr(inode) do { } while (0)
3505 #define stat_inc_inline_inode(inode) do { } while (0)
3506 #define stat_dec_inline_inode(inode) do { } while (0)
3507 #define stat_inc_inline_dir(inode) do { } while (0)
3508 #define stat_dec_inline_dir(inode) do { } while (0)
3509 #define stat_inc_atomic_write(inode) do { } while (0)
3510 #define stat_dec_atomic_write(inode) do { } while (0)
3511 #define stat_update_max_atomic_write(inode) do { } while (0)
3512 #define stat_inc_volatile_write(inode) do { } while (0)
3513 #define stat_dec_volatile_write(inode) do { } while (0)
3514 #define stat_update_max_volatile_write(inode) do { } while (0)
3515 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3516 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3517 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3518 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3519 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3520 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3521 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3522 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3524 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3525 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3526 static inline void __init f2fs_create_root_stats(void) { }
3527 static inline void f2fs_destroy_root_stats(void) { }
3530 extern const struct file_operations f2fs_dir_operations;
3531 extern const struct file_operations f2fs_file_operations;
3532 extern const struct inode_operations f2fs_file_inode_operations;
3533 extern const struct address_space_operations f2fs_dblock_aops;
3534 extern const struct address_space_operations f2fs_node_aops;
3535 extern const struct address_space_operations f2fs_meta_aops;
3536 extern const struct inode_operations f2fs_dir_inode_operations;
3537 extern const struct inode_operations f2fs_symlink_inode_operations;
3538 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3539 extern const struct inode_operations f2fs_special_inode_operations;
3540 extern struct kmem_cache *f2fs_inode_entry_slab;
3545 bool f2fs_may_inline_data(struct inode *inode);
3546 bool f2fs_may_inline_dentry(struct inode *inode);
3547 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3548 void f2fs_truncate_inline_inode(struct inode *inode,
3549 struct page *ipage, u64 from);
3550 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3551 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3552 int f2fs_convert_inline_inode(struct inode *inode);
3553 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3554 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3555 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3556 struct fscrypt_name *fname, struct page **res_page);
3557 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3558 struct page *ipage);
3559 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3560 const struct qstr *orig_name,
3561 struct inode *inode, nid_t ino, umode_t mode);
3562 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3563 struct page *page, struct inode *dir,
3564 struct inode *inode);
3565 bool f2fs_empty_inline_dir(struct inode *dir);
3566 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3567 struct fscrypt_str *fstr);
3568 int f2fs_inline_data_fiemap(struct inode *inode,
3569 struct fiemap_extent_info *fieinfo,
3570 __u64 start, __u64 len);
3575 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3576 struct shrink_control *sc);
3577 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3578 struct shrink_control *sc);
3579 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3580 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3585 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root *root,
3586 struct rb_entry *cached_re, unsigned int ofs);
3587 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3588 struct rb_root *root, struct rb_node **parent,
3590 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
3591 struct rb_entry *cached_re, unsigned int ofs,
3592 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3593 struct rb_node ***insert_p, struct rb_node **insert_parent,
3595 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3596 struct rb_root *root);
3597 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3598 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3599 void f2fs_drop_extent_tree(struct inode *inode);
3600 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3601 void f2fs_destroy_extent_tree(struct inode *inode);
3602 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3603 struct extent_info *ei);
3604 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3605 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3606 pgoff_t fofs, block_t blkaddr, unsigned int len);
3607 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3608 int __init f2fs_create_extent_cache(void);
3609 void f2fs_destroy_extent_cache(void);
3614 int __init f2fs_init_sysfs(void);
3615 void f2fs_exit_sysfs(void);
3616 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3617 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3622 static inline bool f2fs_encrypted_inode(struct inode *inode)
3624 return file_is_encrypt(inode);
3627 static inline bool f2fs_encrypted_file(struct inode *inode)
3629 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
3632 static inline void f2fs_set_encrypted_inode(struct inode *inode)
3634 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3635 file_set_encrypt(inode);
3636 f2fs_set_inode_flags(inode);
3641 * Returns true if the reads of the inode's data need to undergo some
3642 * postprocessing step, like decryption or authenticity verification.
3644 static inline bool f2fs_post_read_required(struct inode *inode)
3646 return f2fs_encrypted_file(inode);
3649 #define F2FS_FEATURE_FUNCS(name, flagname) \
3650 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
3652 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
3655 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3656 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3657 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3658 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3659 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3660 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3661 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3662 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3663 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3664 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
3666 #ifdef CONFIG_BLK_DEV_ZONED
3667 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
3670 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3672 return test_bit(zno, FDEV(devi).blkz_seq);
3676 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
3678 return f2fs_sb_has_blkzoned(sbi);
3681 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
3683 return blk_queue_discard(bdev_get_queue(bdev)) ||
3684 #ifdef CONFIG_BLK_DEV_ZONED
3685 bdev_is_zoned(bdev);
3691 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
3695 if (!f2fs_is_multi_device(sbi))
3696 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
3698 for (i = 0; i < sbi->s_ndevs; i++)
3699 if (f2fs_bdev_support_discard(FDEV(i).bdev))
3704 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
3706 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
3707 f2fs_hw_should_discard(sbi);
3710 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
3714 if (!f2fs_is_multi_device(sbi))
3715 return bdev_read_only(sbi->sb->s_bdev);
3717 for (i = 0; i < sbi->s_ndevs; i++)
3718 if (bdev_read_only(FDEV(i).bdev))
3724 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3726 clear_opt(sbi, ADAPTIVE);
3727 clear_opt(sbi, LFS);
3730 case F2FS_MOUNT_ADAPTIVE:
3731 set_opt(sbi, ADAPTIVE);
3733 case F2FS_MOUNT_LFS:
3739 static inline bool f2fs_may_encrypt(struct inode *inode)
3741 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3742 umode_t mode = inode->i_mode;
3744 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3750 static inline int block_unaligned_IO(struct inode *inode,
3751 struct kiocb *iocb, struct iov_iter *iter)
3753 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
3754 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
3755 loff_t offset = iocb->ki_pos;
3756 unsigned long align = offset | iov_iter_alignment(iter);
3758 return align & blocksize_mask;
3761 static inline int allow_outplace_dio(struct inode *inode,
3762 struct kiocb *iocb, struct iov_iter *iter)
3764 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3765 int rw = iov_iter_rw(iter);
3767 return (test_opt(sbi, LFS) && (rw == WRITE) &&
3768 !block_unaligned_IO(inode, iocb, iter));
3771 static inline bool f2fs_force_buffered_io(struct inode *inode,
3772 struct kiocb *iocb, struct iov_iter *iter)
3774 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3775 int rw = iov_iter_rw(iter);
3777 if (f2fs_post_read_required(inode))
3779 if (f2fs_is_multi_device(sbi))
3782 * for blkzoned device, fallback direct IO to buffered IO, so
3783 * all IOs can be serialized by log-structured write.
3785 if (f2fs_sb_has_blkzoned(sbi))
3787 if (test_opt(sbi, LFS) && (rw == WRITE) &&
3788 block_unaligned_IO(inode, iocb, iter))
3790 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) &&
3791 !IS_SWAPFILE(inode))
3797 #ifdef CONFIG_F2FS_FAULT_INJECTION
3798 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
3801 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
3804 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
3807 if (f2fs_sb_has_quota_ino(sbi))
3809 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
3810 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
3811 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
3817 #define EFSBADCRC EBADMSG /* Bad CRC detected */
3818 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
3820 #endif /* _LINUX_F2FS_H */