1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
11 #include <linux/uio.h>
12 #include <linux/types.h>
13 #include <linux/page-flags.h>
14 #include <linux/buffer_head.h>
15 #include <linux/slab.h>
16 #include <linux/crc32.h>
17 #include <linux/magic.h>
18 #include <linux/kobject.h>
19 #include <linux/sched.h>
20 #include <linux/cred.h>
21 #include <linux/vmalloc.h>
22 #include <linux/bio.h>
23 #include <linux/blkdev.h>
24 #include <linux/quotaops.h>
25 #include <crypto/hash.h>
27 #include <linux/fscrypt.h>
28 #include <linux/fsverity.h>
30 #ifdef CONFIG_F2FS_CHECK_FS
31 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
33 #define f2fs_bug_on(sbi, condition) \
35 if (unlikely(condition)) { \
37 set_sbi_flag(sbi, SBI_NEED_FSCK); \
61 #ifdef CONFIG_F2FS_FAULT_INJECTION
62 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
64 struct f2fs_fault_info {
66 unsigned int inject_rate;
67 unsigned int inject_type;
70 extern const char *f2fs_fault_name[FAULT_MAX];
71 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
77 #define F2FS_MOUNT_BG_GC 0x00000001
78 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
79 #define F2FS_MOUNT_DISCARD 0x00000004
80 #define F2FS_MOUNT_NOHEAP 0x00000008
81 #define F2FS_MOUNT_XATTR_USER 0x00000010
82 #define F2FS_MOUNT_POSIX_ACL 0x00000020
83 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
84 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
85 #define F2FS_MOUNT_INLINE_DATA 0x00000100
86 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
87 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
88 #define F2FS_MOUNT_NOBARRIER 0x00000800
89 #define F2FS_MOUNT_FASTBOOT 0x00001000
90 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
91 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
92 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
93 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
94 #define F2FS_MOUNT_ADAPTIVE 0x00020000
95 #define F2FS_MOUNT_LFS 0x00040000
96 #define F2FS_MOUNT_USRQUOTA 0x00080000
97 #define F2FS_MOUNT_GRPQUOTA 0x00100000
98 #define F2FS_MOUNT_PRJQUOTA 0x00200000
99 #define F2FS_MOUNT_QUOTA 0x00400000
100 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
101 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
102 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
104 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
105 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
106 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
107 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
109 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
110 typecheck(unsigned long long, b) && \
111 ((long long)((a) - (b)) > 0))
113 typedef u32 block_t; /*
114 * should not change u32, since it is the on-disk block
115 * address format, __le32.
119 struct f2fs_mount_info {
121 int write_io_size_bits; /* Write IO size bits */
122 block_t root_reserved_blocks; /* root reserved blocks */
123 kuid_t s_resuid; /* reserved blocks for uid */
124 kgid_t s_resgid; /* reserved blocks for gid */
125 int active_logs; /* # of active logs */
126 int inline_xattr_size; /* inline xattr size */
127 #ifdef CONFIG_F2FS_FAULT_INJECTION
128 struct f2fs_fault_info fault_info; /* For fault injection */
131 /* Names of quota files with journalled quota */
132 char *s_qf_names[MAXQUOTAS];
133 int s_jquota_fmt; /* Format of quota to use */
135 /* For which write hints are passed down to block layer */
137 int alloc_mode; /* segment allocation policy */
138 int fsync_mode; /* fsync policy */
139 bool test_dummy_encryption; /* test dummy encryption */
140 block_t unusable_cap; /* Amount of space allowed to be
141 * unusable when disabling checkpoint
145 #define F2FS_FEATURE_ENCRYPT 0x0001
146 #define F2FS_FEATURE_BLKZONED 0x0002
147 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
148 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
149 #define F2FS_FEATURE_PRJQUOTA 0x0010
150 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
151 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
152 #define F2FS_FEATURE_QUOTA_INO 0x0080
153 #define F2FS_FEATURE_INODE_CRTIME 0x0100
154 #define F2FS_FEATURE_LOST_FOUND 0x0200
155 #define F2FS_FEATURE_VERITY 0x0400
156 #define F2FS_FEATURE_SB_CHKSUM 0x0800
157 #define F2FS_FEATURE_CASEFOLD 0x1000
159 #define __F2FS_HAS_FEATURE(raw_super, mask) \
160 ((raw_super->feature & cpu_to_le32(mask)) != 0)
161 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
162 #define F2FS_SET_FEATURE(sbi, mask) \
163 (sbi->raw_super->feature |= cpu_to_le32(mask))
164 #define F2FS_CLEAR_FEATURE(sbi, mask) \
165 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
168 * Default values for user and/or group using reserved blocks
170 #define F2FS_DEF_RESUID 0
171 #define F2FS_DEF_RESGID 0
174 * For checkpoint manager
181 #define CP_UMOUNT 0x00000001
182 #define CP_FASTBOOT 0x00000002
183 #define CP_SYNC 0x00000004
184 #define CP_RECOVERY 0x00000008
185 #define CP_DISCARD 0x00000010
186 #define CP_TRIMMED 0x00000020
187 #define CP_PAUSE 0x00000040
189 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
190 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
191 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
192 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
193 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
194 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
195 #define DEF_CP_INTERVAL 60 /* 60 secs */
196 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
197 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
198 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
199 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
209 * indicate meta/data type
218 DATA_GENERIC, /* check range only */
219 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
220 DATA_GENERIC_ENHANCE_READ, /*
221 * strong check on range and segment
222 * bitmap but no warning due to race
223 * condition of read on truncated area
229 /* for the list of ino */
231 ORPHAN_INO, /* for orphan ino list */
232 APPEND_INO, /* for append ino list */
233 UPDATE_INO, /* for update ino list */
234 TRANS_DIR_INO, /* for trasactions dir ino list */
235 FLUSH_INO, /* for multiple device flushing */
236 MAX_INO_ENTRY, /* max. list */
240 struct list_head list; /* list head */
241 nid_t ino; /* inode number */
242 unsigned int dirty_device; /* dirty device bitmap */
245 /* for the list of inodes to be GCed */
247 struct list_head list; /* list head */
248 struct inode *inode; /* vfs inode pointer */
251 struct fsync_node_entry {
252 struct list_head list; /* list head */
253 struct page *page; /* warm node page pointer */
254 unsigned int seq_id; /* sequence id */
257 /* for the bitmap indicate blocks to be discarded */
258 struct discard_entry {
259 struct list_head list; /* list head */
260 block_t start_blkaddr; /* start blockaddr of current segment */
261 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
264 /* default discard granularity of inner discard thread, unit: block count */
265 #define DEFAULT_DISCARD_GRANULARITY 16
267 /* max discard pend list number */
268 #define MAX_PLIST_NUM 512
269 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
270 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
273 D_PREP, /* initial */
274 D_PARTIAL, /* partially submitted */
275 D_SUBMIT, /* all submitted */
276 D_DONE, /* finished */
279 struct discard_info {
280 block_t lstart; /* logical start address */
281 block_t len; /* length */
282 block_t start; /* actual start address in dev */
286 struct rb_node rb_node; /* rb node located in rb-tree */
289 block_t lstart; /* logical start address */
290 block_t len; /* length */
291 block_t start; /* actual start address in dev */
293 struct discard_info di; /* discard info */
296 struct list_head list; /* command list */
297 struct completion wait; /* compleation */
298 struct block_device *bdev; /* bdev */
299 unsigned short ref; /* reference count */
300 unsigned char state; /* state */
301 unsigned char queued; /* queued discard */
302 int error; /* bio error */
303 spinlock_t lock; /* for state/bio_ref updating */
304 unsigned short bio_ref; /* bio reference count */
315 struct discard_policy {
316 int type; /* type of discard */
317 unsigned int min_interval; /* used for candidates exist */
318 unsigned int mid_interval; /* used for device busy */
319 unsigned int max_interval; /* used for candidates not exist */
320 unsigned int max_requests; /* # of discards issued per round */
321 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
322 bool io_aware; /* issue discard in idle time */
323 bool sync; /* submit discard with REQ_SYNC flag */
324 bool ordered; /* issue discard by lba order */
325 unsigned int granularity; /* discard granularity */
326 int timeout; /* discard timeout for put_super */
329 struct discard_cmd_control {
330 struct task_struct *f2fs_issue_discard; /* discard thread */
331 struct list_head entry_list; /* 4KB discard entry list */
332 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
333 struct list_head wait_list; /* store on-flushing entries */
334 struct list_head fstrim_list; /* in-flight discard from fstrim */
335 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
336 unsigned int discard_wake; /* to wake up discard thread */
337 struct mutex cmd_lock;
338 unsigned int nr_discards; /* # of discards in the list */
339 unsigned int max_discards; /* max. discards to be issued */
340 unsigned int discard_granularity; /* discard granularity */
341 unsigned int undiscard_blks; /* # of undiscard blocks */
342 unsigned int next_pos; /* next discard position */
343 atomic_t issued_discard; /* # of issued discard */
344 atomic_t queued_discard; /* # of queued discard */
345 atomic_t discard_cmd_cnt; /* # of cached cmd count */
346 struct rb_root_cached root; /* root of discard rb-tree */
347 bool rbtree_check; /* config for consistence check */
350 /* for the list of fsync inodes, used only during recovery */
351 struct fsync_inode_entry {
352 struct list_head list; /* list head */
353 struct inode *inode; /* vfs inode pointer */
354 block_t blkaddr; /* block address locating the last fsync */
355 block_t last_dentry; /* block address locating the last dentry */
358 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
359 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
361 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
362 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
363 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
364 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
366 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
367 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
369 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
371 int before = nats_in_cursum(journal);
373 journal->n_nats = cpu_to_le16(before + i);
377 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
379 int before = sits_in_cursum(journal);
381 journal->n_sits = cpu_to_le16(before + i);
385 static inline bool __has_cursum_space(struct f2fs_journal *journal,
388 if (type == NAT_JOURNAL)
389 return size <= MAX_NAT_JENTRIES(journal);
390 return size <= MAX_SIT_JENTRIES(journal);
396 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
397 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
398 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
400 #define F2FS_IOCTL_MAGIC 0xf5
401 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
402 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
403 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
404 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
405 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
406 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
407 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
408 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
409 struct f2fs_defragment)
410 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
411 struct f2fs_move_range)
412 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
413 struct f2fs_flush_device)
414 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
415 struct f2fs_gc_range)
416 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
417 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
418 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
419 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
420 #define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
422 #define F2FS_IOC_GET_VOLUME_NAME FS_IOC_GETFSLABEL
423 #define F2FS_IOC_SET_VOLUME_NAME FS_IOC_SETFSLABEL
425 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
426 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
427 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
430 * should be same as XFS_IOC_GOINGDOWN.
431 * Flags for going down operation used by FS_IOC_GOINGDOWN
433 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
434 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
435 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
436 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
437 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
438 #define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
440 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
442 * ioctl commands in 32 bit emulation
444 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
445 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
446 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
449 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
450 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
452 struct f2fs_gc_range {
458 struct f2fs_defragment {
463 struct f2fs_move_range {
464 u32 dst_fd; /* destination fd */
465 u64 pos_in; /* start position in src_fd */
466 u64 pos_out; /* start position in dst_fd */
467 u64 len; /* size to move */
470 struct f2fs_flush_device {
471 u32 dev_num; /* device number to flush */
472 u32 segments; /* # of segments to flush */
475 /* for inline stuff */
476 #define DEF_INLINE_RESERVED_SIZE 1
477 static inline int get_extra_isize(struct inode *inode);
478 static inline int get_inline_xattr_addrs(struct inode *inode);
479 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
480 (CUR_ADDRS_PER_INODE(inode) - \
481 get_inline_xattr_addrs(inode) - \
482 DEF_INLINE_RESERVED_SIZE))
485 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
486 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
488 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
489 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
490 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
491 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
492 NR_INLINE_DENTRY(inode) + \
493 INLINE_DENTRY_BITMAP_SIZE(inode)))
496 * For INODE and NODE manager
498 /* for directory operations */
499 struct f2fs_dentry_ptr {
502 struct f2fs_dir_entry *dentry;
503 __u8 (*filename)[F2FS_SLOT_LEN];
508 static inline void make_dentry_ptr_block(struct inode *inode,
509 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
512 d->max = NR_DENTRY_IN_BLOCK;
513 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
514 d->bitmap = t->dentry_bitmap;
515 d->dentry = t->dentry;
516 d->filename = t->filename;
519 static inline void make_dentry_ptr_inline(struct inode *inode,
520 struct f2fs_dentry_ptr *d, void *t)
522 int entry_cnt = NR_INLINE_DENTRY(inode);
523 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
524 int reserved_size = INLINE_RESERVED_SIZE(inode);
528 d->nr_bitmap = bitmap_size;
530 d->dentry = t + bitmap_size + reserved_size;
531 d->filename = t + bitmap_size + reserved_size +
532 SIZE_OF_DIR_ENTRY * entry_cnt;
536 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
537 * as its node offset to distinguish from index node blocks.
538 * But some bits are used to mark the node block.
540 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
543 ALLOC_NODE, /* allocate a new node page if needed */
544 LOOKUP_NODE, /* look up a node without readahead */
546 * look up a node with readahead called
551 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
553 /* maximum retry quota flush count */
554 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
556 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
558 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
560 /* for in-memory extent cache entry */
561 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
563 /* number of extent info in extent cache we try to shrink */
564 #define EXTENT_CACHE_SHRINK_NUMBER 128
567 struct rb_node rb_node; /* rb node located in rb-tree */
568 unsigned int ofs; /* start offset of the entry */
569 unsigned int len; /* length of the entry */
573 unsigned int fofs; /* start offset in a file */
574 unsigned int len; /* length of the extent */
575 u32 blk; /* start block address of the extent */
579 struct rb_node rb_node; /* rb node located in rb-tree */
580 struct extent_info ei; /* extent info */
581 struct list_head list; /* node in global extent list of sbi */
582 struct extent_tree *et; /* extent tree pointer */
586 nid_t ino; /* inode number */
587 struct rb_root_cached root; /* root of extent info rb-tree */
588 struct extent_node *cached_en; /* recently accessed extent node */
589 struct extent_info largest; /* largested extent info */
590 struct list_head list; /* to be used by sbi->zombie_list */
591 rwlock_t lock; /* protect extent info rb-tree */
592 atomic_t node_cnt; /* # of extent node in rb-tree*/
593 bool largest_updated; /* largest extent updated */
597 * This structure is taken from ext4_map_blocks.
599 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
601 #define F2FS_MAP_NEW (1 << BH_New)
602 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
603 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
604 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
607 struct f2fs_map_blocks {
611 unsigned int m_flags;
612 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
613 pgoff_t *m_next_extent; /* point to next possible extent */
615 bool m_may_create; /* indicate it is from write path */
618 /* for flag in get_data_block */
620 F2FS_GET_BLOCK_DEFAULT,
621 F2FS_GET_BLOCK_FIEMAP,
624 F2FS_GET_BLOCK_PRE_DIO,
625 F2FS_GET_BLOCK_PRE_AIO,
626 F2FS_GET_BLOCK_PRECACHE,
630 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
632 #define FADVISE_COLD_BIT 0x01
633 #define FADVISE_LOST_PINO_BIT 0x02
634 #define FADVISE_ENCRYPT_BIT 0x04
635 #define FADVISE_ENC_NAME_BIT 0x08
636 #define FADVISE_KEEP_SIZE_BIT 0x10
637 #define FADVISE_HOT_BIT 0x20
638 #define FADVISE_VERITY_BIT 0x40
640 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
642 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
643 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
644 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
645 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
646 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
647 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
648 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
649 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
650 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
651 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
652 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
653 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
654 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
655 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
656 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
657 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
658 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
659 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
661 #define DEF_DIR_LEVEL 0
669 struct f2fs_inode_info {
670 struct inode vfs_inode; /* serve a vfs inode */
671 unsigned long i_flags; /* keep an inode flags for ioctl */
672 unsigned char i_advise; /* use to give file attribute hints */
673 unsigned char i_dir_level; /* use for dentry level for large dir */
674 unsigned int i_current_depth; /* only for directory depth */
675 /* for gc failure statistic */
676 unsigned int i_gc_failures[MAX_GC_FAILURE];
677 unsigned int i_pino; /* parent inode number */
678 umode_t i_acl_mode; /* keep file acl mode temporarily */
680 /* Use below internally in f2fs*/
681 unsigned long flags; /* use to pass per-file flags */
682 struct rw_semaphore i_sem; /* protect fi info */
683 atomic_t dirty_pages; /* # of dirty pages */
684 f2fs_hash_t chash; /* hash value of given file name */
685 unsigned int clevel; /* maximum level of given file name */
686 struct task_struct *task; /* lookup and create consistency */
687 struct task_struct *cp_task; /* separate cp/wb IO stats*/
688 nid_t i_xattr_nid; /* node id that contains xattrs */
689 loff_t last_disk_size; /* lastly written file size */
692 struct dquot *i_dquot[MAXQUOTAS];
694 /* quota space reservation, managed internally by quota code */
695 qsize_t i_reserved_quota;
697 struct list_head dirty_list; /* dirty list for dirs and files */
698 struct list_head gdirty_list; /* linked in global dirty list */
699 struct list_head inmem_ilist; /* list for inmem inodes */
700 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
701 struct task_struct *inmem_task; /* store inmemory task */
702 struct mutex inmem_lock; /* lock for inmemory pages */
703 struct extent_tree *extent_tree; /* cached extent_tree entry */
705 /* avoid racing between foreground op and gc */
706 struct rw_semaphore i_gc_rwsem[2];
707 struct rw_semaphore i_mmap_sem;
708 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
710 int i_extra_isize; /* size of extra space located in i_addr */
711 kprojid_t i_projid; /* id for project quota */
712 int i_inline_xattr_size; /* inline xattr size */
713 struct timespec64 i_crtime; /* inode creation time */
714 struct timespec64 i_disk_time[4];/* inode disk times */
717 static inline void get_extent_info(struct extent_info *ext,
718 struct f2fs_extent *i_ext)
720 ext->fofs = le32_to_cpu(i_ext->fofs);
721 ext->blk = le32_to_cpu(i_ext->blk);
722 ext->len = le32_to_cpu(i_ext->len);
725 static inline void set_raw_extent(struct extent_info *ext,
726 struct f2fs_extent *i_ext)
728 i_ext->fofs = cpu_to_le32(ext->fofs);
729 i_ext->blk = cpu_to_le32(ext->blk);
730 i_ext->len = cpu_to_le32(ext->len);
733 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
734 u32 blk, unsigned int len)
741 static inline bool __is_discard_mergeable(struct discard_info *back,
742 struct discard_info *front, unsigned int max_len)
744 return (back->lstart + back->len == front->lstart) &&
745 (back->len + front->len <= max_len);
748 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
749 struct discard_info *back, unsigned int max_len)
751 return __is_discard_mergeable(back, cur, max_len);
754 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
755 struct discard_info *front, unsigned int max_len)
757 return __is_discard_mergeable(cur, front, max_len);
760 static inline bool __is_extent_mergeable(struct extent_info *back,
761 struct extent_info *front)
763 return (back->fofs + back->len == front->fofs &&
764 back->blk + back->len == front->blk);
767 static inline bool __is_back_mergeable(struct extent_info *cur,
768 struct extent_info *back)
770 return __is_extent_mergeable(back, cur);
773 static inline bool __is_front_mergeable(struct extent_info *cur,
774 struct extent_info *front)
776 return __is_extent_mergeable(cur, front);
779 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
780 static inline void __try_update_largest_extent(struct extent_tree *et,
781 struct extent_node *en)
783 if (en->ei.len > et->largest.len) {
784 et->largest = en->ei;
785 et->largest_updated = true;
790 * For free nid management
793 FREE_NID, /* newly added to free nid list */
794 PREALLOC_NID, /* it is preallocated */
798 struct f2fs_nm_info {
799 block_t nat_blkaddr; /* base disk address of NAT */
800 nid_t max_nid; /* maximum possible node ids */
801 nid_t available_nids; /* # of available node ids */
802 nid_t next_scan_nid; /* the next nid to be scanned */
803 unsigned int ram_thresh; /* control the memory footprint */
804 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
805 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
807 /* NAT cache management */
808 struct radix_tree_root nat_root;/* root of the nat entry cache */
809 struct radix_tree_root nat_set_root;/* root of the nat set cache */
810 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
811 struct list_head nat_entries; /* cached nat entry list (clean) */
812 spinlock_t nat_list_lock; /* protect clean nat entry list */
813 unsigned int nat_cnt; /* the # of cached nat entries */
814 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
815 unsigned int nat_blocks; /* # of nat blocks */
817 /* free node ids management */
818 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
819 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
820 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
821 spinlock_t nid_list_lock; /* protect nid lists ops */
822 struct mutex build_lock; /* lock for build free nids */
823 unsigned char **free_nid_bitmap;
824 unsigned char *nat_block_bitmap;
825 unsigned short *free_nid_count; /* free nid count of NAT block */
828 char *nat_bitmap; /* NAT bitmap pointer */
830 unsigned int nat_bits_blocks; /* # of nat bits blocks */
831 unsigned char *nat_bits; /* NAT bits blocks */
832 unsigned char *full_nat_bits; /* full NAT pages */
833 unsigned char *empty_nat_bits; /* empty NAT pages */
834 #ifdef CONFIG_F2FS_CHECK_FS
835 char *nat_bitmap_mir; /* NAT bitmap mirror */
837 int bitmap_size; /* bitmap size */
841 * this structure is used as one of function parameters.
842 * all the information are dedicated to a given direct node block determined
843 * by the data offset in a file.
845 struct dnode_of_data {
846 struct inode *inode; /* vfs inode pointer */
847 struct page *inode_page; /* its inode page, NULL is possible */
848 struct page *node_page; /* cached direct node page */
849 nid_t nid; /* node id of the direct node block */
850 unsigned int ofs_in_node; /* data offset in the node page */
851 bool inode_page_locked; /* inode page is locked or not */
852 bool node_changed; /* is node block changed */
853 char cur_level; /* level of hole node page */
854 char max_level; /* level of current page located */
855 block_t data_blkaddr; /* block address of the node block */
858 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
859 struct page *ipage, struct page *npage, nid_t nid)
861 memset(dn, 0, sizeof(*dn));
863 dn->inode_page = ipage;
864 dn->node_page = npage;
871 * By default, there are 6 active log areas across the whole main area.
872 * When considering hot and cold data separation to reduce cleaning overhead,
873 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
875 * In the current design, you should not change the numbers intentionally.
876 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
877 * logs individually according to the underlying devices. (default: 6)
878 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
879 * data and 8 for node logs.
881 #define NR_CURSEG_DATA_TYPE (3)
882 #define NR_CURSEG_NODE_TYPE (3)
883 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
886 CURSEG_HOT_DATA = 0, /* directory entry blocks */
887 CURSEG_WARM_DATA, /* data blocks */
888 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
889 CURSEG_HOT_NODE, /* direct node blocks of directory files */
890 CURSEG_WARM_NODE, /* direct node blocks of normal files */
891 CURSEG_COLD_NODE, /* indirect node blocks */
893 CURSEG_COLD_DATA_PINNED,/* cold data for pinned file */
897 struct completion wait;
898 struct llist_node llnode;
903 struct flush_cmd_control {
904 struct task_struct *f2fs_issue_flush; /* flush thread */
905 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
906 atomic_t issued_flush; /* # of issued flushes */
907 atomic_t queued_flush; /* # of queued flushes */
908 struct llist_head issue_list; /* list for command issue */
909 struct llist_node *dispatch_list; /* list for command dispatch */
912 struct f2fs_sm_info {
913 struct sit_info *sit_info; /* whole segment information */
914 struct free_segmap_info *free_info; /* free segment information */
915 struct dirty_seglist_info *dirty_info; /* dirty segment information */
916 struct curseg_info *curseg_array; /* active segment information */
918 struct rw_semaphore curseg_lock; /* for preventing curseg change */
920 block_t seg0_blkaddr; /* block address of 0'th segment */
921 block_t main_blkaddr; /* start block address of main area */
922 block_t ssa_blkaddr; /* start block address of SSA area */
924 unsigned int segment_count; /* total # of segments */
925 unsigned int main_segments; /* # of segments in main area */
926 unsigned int reserved_segments; /* # of reserved segments */
927 unsigned int ovp_segments; /* # of overprovision segments */
929 /* a threshold to reclaim prefree segments */
930 unsigned int rec_prefree_segments;
932 /* for batched trimming */
933 unsigned int trim_sections; /* # of sections to trim */
935 struct list_head sit_entry_set; /* sit entry set list */
937 unsigned int ipu_policy; /* in-place-update policy */
938 unsigned int min_ipu_util; /* in-place-update threshold */
939 unsigned int min_fsync_blocks; /* threshold for fsync */
940 unsigned int min_seq_blocks; /* threshold for sequential blocks */
941 unsigned int min_hot_blocks; /* threshold for hot block allocation */
942 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
944 /* for flush command control */
945 struct flush_cmd_control *fcc_info;
947 /* for discard command control */
948 struct discard_cmd_control *dcc_info;
955 * COUNT_TYPE for monitoring
957 * f2fs monitors the number of several block types such as on-writeback,
958 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
960 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
980 * The below are the page types of bios used in submit_bio().
981 * The available types are:
982 * DATA User data pages. It operates as async mode.
983 * NODE Node pages. It operates as async mode.
984 * META FS metadata pages such as SIT, NAT, CP.
985 * NR_PAGE_TYPE The number of page types.
986 * META_FLUSH Make sure the previous pages are written
987 * with waiting the bio's completion
988 * ... Only can be used with META.
990 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
997 INMEM, /* the below types are used by tracepoints only. */
1006 HOT = 0, /* must be zero for meta bio */
1012 enum need_lock_type {
1018 enum cp_reason_type {
1032 APP_DIRECT_IO, /* app direct IOs */
1033 APP_BUFFERED_IO, /* app buffered IOs */
1034 APP_WRITE_IO, /* app write IOs */
1035 APP_MAPPED_IO, /* app mapped IOs */
1036 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1037 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1038 FS_META_IO, /* meta IOs from kworker/reclaimer */
1039 FS_GC_DATA_IO, /* data IOs from forground gc */
1040 FS_GC_NODE_IO, /* node IOs from forground gc */
1041 FS_CP_DATA_IO, /* data IOs from checkpoint */
1042 FS_CP_NODE_IO, /* node IOs from checkpoint */
1043 FS_CP_META_IO, /* meta IOs from checkpoint */
1044 FS_DISCARD, /* discard */
1048 struct f2fs_io_info {
1049 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1050 nid_t ino; /* inode number */
1051 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1052 enum temp_type temp; /* contains HOT/WARM/COLD */
1053 int op; /* contains REQ_OP_ */
1054 int op_flags; /* req_flag_bits */
1055 block_t new_blkaddr; /* new block address to be written */
1056 block_t old_blkaddr; /* old block address before Cow */
1057 struct page *page; /* page to be written */
1058 struct page *encrypted_page; /* encrypted page */
1059 struct list_head list; /* serialize IOs */
1060 bool submitted; /* indicate IO submission */
1061 int need_lock; /* indicate we need to lock cp_rwsem */
1062 bool in_list; /* indicate fio is in io_list */
1063 bool is_por; /* indicate IO is from recovery or not */
1064 bool retry; /* need to reallocate block address */
1065 enum iostat_type io_type; /* io type */
1066 struct writeback_control *io_wbc; /* writeback control */
1067 struct bio **bio; /* bio for ipu */
1068 sector_t *last_block; /* last block number in bio */
1069 unsigned char version; /* version of the node */
1074 struct list_head list;
1077 #define is_read_io(rw) ((rw) == READ)
1078 struct f2fs_bio_info {
1079 struct f2fs_sb_info *sbi; /* f2fs superblock */
1080 struct bio *bio; /* bios to merge */
1081 sector_t last_block_in_bio; /* last block number */
1082 struct f2fs_io_info fio; /* store buffered io info. */
1083 struct rw_semaphore io_rwsem; /* blocking op for bio */
1084 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1085 struct list_head io_list; /* track fios */
1086 struct list_head bio_list; /* bio entry list head */
1087 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */
1090 #define FDEV(i) (sbi->devs[i])
1091 #define RDEV(i) (raw_super->devs[i])
1092 struct f2fs_dev_info {
1093 struct block_device *bdev;
1094 char path[MAX_PATH_LEN];
1095 unsigned int total_segments;
1098 #ifdef CONFIG_BLK_DEV_ZONED
1099 unsigned int nr_blkz; /* Total number of zones */
1100 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1105 DIR_INODE, /* for dirty dir inode */
1106 FILE_INODE, /* for dirty regular/symlink inode */
1107 DIRTY_META, /* for all dirtied inode metadata */
1108 ATOMIC_FILE, /* for all atomic files */
1112 /* for inner inode cache management */
1113 struct inode_management {
1114 struct radix_tree_root ino_root; /* ino entry array */
1115 spinlock_t ino_lock; /* for ino entry lock */
1116 struct list_head ino_list; /* inode list head */
1117 unsigned long ino_num; /* number of entries */
1120 /* For s_flag in struct f2fs_sb_info */
1122 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1123 SBI_IS_CLOSE, /* specify unmounting */
1124 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1125 SBI_POR_DOING, /* recovery is doing or not */
1126 SBI_NEED_SB_WRITE, /* need to recover superblock */
1127 SBI_NEED_CP, /* need to checkpoint */
1128 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1129 SBI_IS_RECOVERED, /* recovered orphan/data */
1130 SBI_CP_DISABLED, /* CP was disabled last mount */
1131 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1132 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1133 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1134 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1135 SBI_IS_RESIZEFS, /* resizefs is in process */
1144 UMOUNT_DISCARD_TIMEOUT,
1156 WHINT_MODE_OFF, /* not pass down write hints */
1157 WHINT_MODE_USER, /* try to pass down hints given by users */
1158 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1162 ALLOC_MODE_DEFAULT, /* stay default */
1163 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1167 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1168 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1169 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1172 #ifdef CONFIG_FS_ENCRYPTION
1173 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1174 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1176 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1179 struct f2fs_sb_info {
1180 struct super_block *sb; /* pointer to VFS super block */
1181 struct proc_dir_entry *s_proc; /* proc entry */
1182 struct f2fs_super_block *raw_super; /* raw super block pointer */
1183 struct rw_semaphore sb_lock; /* lock for raw super block */
1184 int valid_super_block; /* valid super block no */
1185 unsigned long s_flag; /* flags for sbi */
1186 struct mutex writepages; /* mutex for writepages() */
1187 #ifdef CONFIG_UNICODE
1188 struct unicode_map *s_encoding;
1189 __u16 s_encoding_flags;
1192 #ifdef CONFIG_BLK_DEV_ZONED
1193 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1194 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1197 /* for node-related operations */
1198 struct f2fs_nm_info *nm_info; /* node manager */
1199 struct inode *node_inode; /* cache node blocks */
1201 /* for segment-related operations */
1202 struct f2fs_sm_info *sm_info; /* segment manager */
1204 /* for bio operations */
1205 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1206 /* keep migration IO order for LFS mode */
1207 struct rw_semaphore io_order_lock;
1208 mempool_t *write_io_dummy; /* Dummy pages */
1210 /* for checkpoint */
1211 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1212 int cur_cp_pack; /* remain current cp pack */
1213 spinlock_t cp_lock; /* for flag in ckpt */
1214 struct inode *meta_inode; /* cache meta blocks */
1215 struct mutex cp_mutex; /* checkpoint procedure lock */
1216 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1217 struct rw_semaphore node_write; /* locking node writes */
1218 struct rw_semaphore node_change; /* locking node change */
1219 wait_queue_head_t cp_wait;
1220 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1221 long interval_time[MAX_TIME]; /* to store thresholds */
1223 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1225 spinlock_t fsync_node_lock; /* for node entry lock */
1226 struct list_head fsync_node_list; /* node list head */
1227 unsigned int fsync_seg_id; /* sequence id */
1228 unsigned int fsync_node_num; /* number of node entries */
1230 /* for orphan inode, use 0'th array */
1231 unsigned int max_orphans; /* max orphan inodes */
1233 /* for inode management */
1234 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1235 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1236 struct mutex flush_lock; /* for flush exclusion */
1238 /* for extent tree cache */
1239 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1240 struct mutex extent_tree_lock; /* locking extent radix tree */
1241 struct list_head extent_list; /* lru list for shrinker */
1242 spinlock_t extent_lock; /* locking extent lru list */
1243 atomic_t total_ext_tree; /* extent tree count */
1244 struct list_head zombie_list; /* extent zombie tree list */
1245 atomic_t total_zombie_tree; /* extent zombie tree count */
1246 atomic_t total_ext_node; /* extent info count */
1248 /* basic filesystem units */
1249 unsigned int log_sectors_per_block; /* log2 sectors per block */
1250 unsigned int log_blocksize; /* log2 block size */
1251 unsigned int blocksize; /* block size */
1252 unsigned int root_ino_num; /* root inode number*/
1253 unsigned int node_ino_num; /* node inode number*/
1254 unsigned int meta_ino_num; /* meta inode number*/
1255 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1256 unsigned int blocks_per_seg; /* blocks per segment */
1257 unsigned int segs_per_sec; /* segments per section */
1258 unsigned int secs_per_zone; /* sections per zone */
1259 unsigned int total_sections; /* total section count */
1260 struct mutex resize_mutex; /* for resize exclusion */
1261 unsigned int total_node_count; /* total node block count */
1262 unsigned int total_valid_node_count; /* valid node block count */
1263 loff_t max_file_blocks; /* max block index of file */
1264 int dir_level; /* directory level */
1265 int readdir_ra; /* readahead inode in readdir */
1267 block_t user_block_count; /* # of user blocks */
1268 block_t total_valid_block_count; /* # of valid blocks */
1269 block_t discard_blks; /* discard command candidats */
1270 block_t last_valid_block_count; /* for recovery */
1271 block_t reserved_blocks; /* configurable reserved blocks */
1272 block_t current_reserved_blocks; /* current reserved blocks */
1274 /* Additional tracking for no checkpoint mode */
1275 block_t unusable_block_count; /* # of blocks saved by last cp */
1277 unsigned int nquota_files; /* # of quota sysfile */
1278 struct rw_semaphore quota_sem; /* blocking cp for flags */
1280 /* # of pages, see count_type */
1281 atomic_t nr_pages[NR_COUNT_TYPE];
1282 /* # of allocated blocks */
1283 struct percpu_counter alloc_valid_block_count;
1285 /* writeback control */
1286 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1288 /* valid inode count */
1289 struct percpu_counter total_valid_inode_count;
1291 struct f2fs_mount_info mount_opt; /* mount options */
1293 /* for cleaning operations */
1294 struct mutex gc_mutex; /* mutex for GC */
1295 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1296 unsigned int cur_victim_sec; /* current victim section num */
1297 unsigned int gc_mode; /* current GC state */
1298 unsigned int next_victim_seg[2]; /* next segment in victim section */
1299 /* for skip statistic */
1300 unsigned int atomic_files; /* # of opened atomic file */
1301 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1302 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1304 /* threshold for gc trials on pinned files */
1305 u64 gc_pin_file_threshold;
1306 struct rw_semaphore pin_sem;
1308 /* maximum # of trials to find a victim segment for SSR and GC */
1309 unsigned int max_victim_search;
1310 /* migration granularity of garbage collection, unit: segment */
1311 unsigned int migration_granularity;
1314 * for stat information.
1315 * one is for the LFS mode, and the other is for the SSR mode.
1317 #ifdef CONFIG_F2FS_STAT_FS
1318 struct f2fs_stat_info *stat_info; /* FS status information */
1319 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1320 unsigned int segment_count[2]; /* # of allocated segments */
1321 unsigned int block_count[2]; /* # of allocated blocks */
1322 atomic_t inplace_count; /* # of inplace update */
1323 atomic64_t total_hit_ext; /* # of lookup extent cache */
1324 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1325 atomic64_t read_hit_largest; /* # of hit largest extent node */
1326 atomic64_t read_hit_cached; /* # of hit cached extent node */
1327 atomic_t inline_xattr; /* # of inline_xattr inodes */
1328 atomic_t inline_inode; /* # of inline_data inodes */
1329 atomic_t inline_dir; /* # of inline_dentry inodes */
1330 atomic_t vw_cnt; /* # of volatile writes */
1331 atomic_t max_aw_cnt; /* max # of atomic writes */
1332 atomic_t max_vw_cnt; /* max # of volatile writes */
1333 int bg_gc; /* background gc calls */
1334 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1335 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1336 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1338 spinlock_t stat_lock; /* lock for stat operations */
1340 /* For app/fs IO statistics */
1341 spinlock_t iostat_lock;
1342 unsigned long long write_iostat[NR_IO_TYPE];
1345 /* For sysfs suppport */
1346 struct kobject s_kobj;
1347 struct completion s_kobj_unregister;
1349 /* For shrinker support */
1350 struct list_head s_list;
1351 int s_ndevs; /* number of devices */
1352 struct f2fs_dev_info *devs; /* for device list */
1353 unsigned int dirty_device; /* for checkpoint data flush */
1354 spinlock_t dev_lock; /* protect dirty_device */
1355 struct mutex umount_mutex;
1356 unsigned int shrinker_run_no;
1358 /* For write statistics */
1359 u64 sectors_written_start;
1362 /* Reference to checksum algorithm driver via cryptoapi */
1363 struct crypto_shash *s_chksum_driver;
1365 /* Precomputed FS UUID checksum for seeding other checksums */
1366 __u32 s_chksum_seed;
1369 struct f2fs_private_dio {
1370 struct inode *inode;
1372 bio_end_io_t *orig_end_io;
1376 #ifdef CONFIG_F2FS_FAULT_INJECTION
1377 #define f2fs_show_injection_info(sbi, type) \
1378 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1379 KERN_INFO, sbi->sb->s_id, \
1380 f2fs_fault_name[type], \
1381 __func__, __builtin_return_address(0))
1382 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1384 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1386 if (!ffi->inject_rate)
1389 if (!IS_FAULT_SET(ffi, type))
1392 atomic_inc(&ffi->inject_ops);
1393 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1394 atomic_set(&ffi->inject_ops, 0);
1400 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1401 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1408 * Test if the mounted volume is a multi-device volume.
1409 * - For a single regular disk volume, sbi->s_ndevs is 0.
1410 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1411 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1413 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1415 return sbi->s_ndevs > 1;
1418 /* For write statistics. Suppose sector size is 512 bytes,
1419 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1421 #define BD_PART_WRITTEN(s) \
1422 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \
1423 (s)->sectors_written_start) >> 1)
1425 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1427 unsigned long now = jiffies;
1429 sbi->last_time[type] = now;
1431 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1432 if (type == REQ_TIME) {
1433 sbi->last_time[DISCARD_TIME] = now;
1434 sbi->last_time[GC_TIME] = now;
1438 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1440 unsigned long interval = sbi->interval_time[type] * HZ;
1442 return time_after(jiffies, sbi->last_time[type] + interval);
1445 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1448 unsigned long interval = sbi->interval_time[type] * HZ;
1449 unsigned int wait_ms = 0;
1452 delta = (sbi->last_time[type] + interval) - jiffies;
1454 wait_ms = jiffies_to_msecs(delta);
1462 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1463 const void *address, unsigned int length)
1466 struct shash_desc shash;
1471 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1473 desc.shash.tfm = sbi->s_chksum_driver;
1474 *(u32 *)desc.ctx = crc;
1476 err = crypto_shash_update(&desc.shash, address, length);
1479 return *(u32 *)desc.ctx;
1482 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1483 unsigned int length)
1485 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1488 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1489 void *buf, size_t buf_size)
1491 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1494 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1495 const void *address, unsigned int length)
1497 return __f2fs_crc32(sbi, crc, address, length);
1500 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1502 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1505 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1507 return sb->s_fs_info;
1510 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1512 return F2FS_SB(inode->i_sb);
1515 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1517 return F2FS_I_SB(mapping->host);
1520 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1522 return F2FS_M_SB(page_file_mapping(page));
1525 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1527 return (struct f2fs_super_block *)(sbi->raw_super);
1530 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1532 return (struct f2fs_checkpoint *)(sbi->ckpt);
1535 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1537 return (struct f2fs_node *)page_address(page);
1540 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1542 return &((struct f2fs_node *)page_address(page))->i;
1545 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1547 return (struct f2fs_nm_info *)(sbi->nm_info);
1550 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1552 return (struct f2fs_sm_info *)(sbi->sm_info);
1555 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1557 return (struct sit_info *)(SM_I(sbi)->sit_info);
1560 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1562 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1565 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1567 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1570 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1572 return sbi->meta_inode->i_mapping;
1575 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1577 return sbi->node_inode->i_mapping;
1580 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1582 return test_bit(type, &sbi->s_flag);
1585 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1587 set_bit(type, &sbi->s_flag);
1590 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1592 clear_bit(type, &sbi->s_flag);
1595 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1597 return le64_to_cpu(cp->checkpoint_ver);
1600 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1602 if (type < F2FS_MAX_QUOTAS)
1603 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1607 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1609 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1610 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1613 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1615 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1617 return ckpt_flags & f;
1620 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1622 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1625 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1627 unsigned int ckpt_flags;
1629 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1631 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1634 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1636 unsigned long flags;
1638 spin_lock_irqsave(&sbi->cp_lock, flags);
1639 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1640 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1643 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1645 unsigned int ckpt_flags;
1647 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1649 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1652 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1654 unsigned long flags;
1656 spin_lock_irqsave(&sbi->cp_lock, flags);
1657 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1658 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1661 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1663 unsigned long flags;
1664 unsigned char *nat_bits;
1667 * In order to re-enable nat_bits we need to call fsck.f2fs by
1668 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
1669 * so let's rely on regular fsck or unclean shutdown.
1673 spin_lock_irqsave(&sbi->cp_lock, flags);
1674 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1675 nat_bits = NM_I(sbi)->nat_bits;
1676 NM_I(sbi)->nat_bits = NULL;
1678 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1683 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1684 struct cp_control *cpc)
1686 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1688 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1691 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1693 down_read(&sbi->cp_rwsem);
1696 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1698 return down_read_trylock(&sbi->cp_rwsem);
1701 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1703 up_read(&sbi->cp_rwsem);
1706 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1708 down_write(&sbi->cp_rwsem);
1711 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1713 up_write(&sbi->cp_rwsem);
1716 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1718 int reason = CP_SYNC;
1720 if (test_opt(sbi, FASTBOOT))
1721 reason = CP_FASTBOOT;
1722 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1727 static inline bool __remain_node_summaries(int reason)
1729 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1732 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1734 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1735 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1739 * Check whether the inode has blocks or not
1741 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1743 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1745 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1748 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1750 return ofs == XATTR_NODE_OFFSET;
1753 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1754 struct inode *inode, bool cap)
1758 if (!test_opt(sbi, RESERVE_ROOT))
1760 if (IS_NOQUOTA(inode))
1762 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1764 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1765 in_group_p(F2FS_OPTION(sbi).s_resgid))
1767 if (cap && capable(CAP_SYS_RESOURCE))
1772 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1773 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1774 struct inode *inode, blkcnt_t *count)
1776 blkcnt_t diff = 0, release = 0;
1777 block_t avail_user_block_count;
1780 ret = dquot_reserve_block(inode, *count);
1784 if (time_to_inject(sbi, FAULT_BLOCK)) {
1785 f2fs_show_injection_info(sbi, FAULT_BLOCK);
1791 * let's increase this in prior to actual block count change in order
1792 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1794 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1796 spin_lock(&sbi->stat_lock);
1797 sbi->total_valid_block_count += (block_t)(*count);
1798 avail_user_block_count = sbi->user_block_count -
1799 sbi->current_reserved_blocks;
1801 if (!__allow_reserved_blocks(sbi, inode, true))
1802 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1803 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1804 if (avail_user_block_count > sbi->unusable_block_count)
1805 avail_user_block_count -= sbi->unusable_block_count;
1807 avail_user_block_count = 0;
1809 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1810 diff = sbi->total_valid_block_count - avail_user_block_count;
1815 sbi->total_valid_block_count -= diff;
1817 spin_unlock(&sbi->stat_lock);
1821 spin_unlock(&sbi->stat_lock);
1823 if (unlikely(release)) {
1824 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1825 dquot_release_reservation_block(inode, release);
1827 f2fs_i_blocks_write(inode, *count, true, true);
1831 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1833 dquot_release_reservation_block(inode, release);
1838 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
1840 #define f2fs_err(sbi, fmt, ...) \
1841 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
1842 #define f2fs_warn(sbi, fmt, ...) \
1843 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
1844 #define f2fs_notice(sbi, fmt, ...) \
1845 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
1846 #define f2fs_info(sbi, fmt, ...) \
1847 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
1848 #define f2fs_debug(sbi, fmt, ...) \
1849 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
1851 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1852 struct inode *inode,
1855 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1857 spin_lock(&sbi->stat_lock);
1858 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1859 sbi->total_valid_block_count -= (block_t)count;
1860 if (sbi->reserved_blocks &&
1861 sbi->current_reserved_blocks < sbi->reserved_blocks)
1862 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1863 sbi->current_reserved_blocks + count);
1864 spin_unlock(&sbi->stat_lock);
1865 if (unlikely(inode->i_blocks < sectors)) {
1866 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
1868 (unsigned long long)inode->i_blocks,
1869 (unsigned long long)sectors);
1870 set_sbi_flag(sbi, SBI_NEED_FSCK);
1873 f2fs_i_blocks_write(inode, count, false, true);
1876 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1878 atomic_inc(&sbi->nr_pages[count_type]);
1880 if (count_type == F2FS_DIRTY_DENTS ||
1881 count_type == F2FS_DIRTY_NODES ||
1882 count_type == F2FS_DIRTY_META ||
1883 count_type == F2FS_DIRTY_QDATA ||
1884 count_type == F2FS_DIRTY_IMETA)
1885 set_sbi_flag(sbi, SBI_IS_DIRTY);
1888 static inline void inode_inc_dirty_pages(struct inode *inode)
1890 atomic_inc(&F2FS_I(inode)->dirty_pages);
1891 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1892 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1893 if (IS_NOQUOTA(inode))
1894 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1897 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1899 atomic_dec(&sbi->nr_pages[count_type]);
1902 static inline void inode_dec_dirty_pages(struct inode *inode)
1904 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1905 !S_ISLNK(inode->i_mode))
1908 atomic_dec(&F2FS_I(inode)->dirty_pages);
1909 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1910 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1911 if (IS_NOQUOTA(inode))
1912 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1915 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1917 return atomic_read(&sbi->nr_pages[count_type]);
1920 static inline int get_dirty_pages(struct inode *inode)
1922 return atomic_read(&F2FS_I(inode)->dirty_pages);
1925 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1927 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1928 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1929 sbi->log_blocks_per_seg;
1931 return segs / sbi->segs_per_sec;
1934 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1936 return sbi->total_valid_block_count;
1939 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1941 return sbi->discard_blks;
1944 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1946 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1948 /* return NAT or SIT bitmap */
1949 if (flag == NAT_BITMAP)
1950 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1951 else if (flag == SIT_BITMAP)
1952 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1957 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1959 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1962 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1964 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1967 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
1968 offset = (flag == SIT_BITMAP) ?
1969 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
1971 * if large_nat_bitmap feature is enabled, leave checksum
1972 * protection for all nat/sit bitmaps.
1974 return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32);
1977 if (__cp_payload(sbi) > 0) {
1978 if (flag == NAT_BITMAP)
1979 return &ckpt->sit_nat_version_bitmap;
1981 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1983 offset = (flag == NAT_BITMAP) ?
1984 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1985 return &ckpt->sit_nat_version_bitmap + offset;
1989 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1991 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1993 if (sbi->cur_cp_pack == 2)
1994 start_addr += sbi->blocks_per_seg;
1998 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2000 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2002 if (sbi->cur_cp_pack == 1)
2003 start_addr += sbi->blocks_per_seg;
2007 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2009 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2012 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2014 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2017 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2018 struct inode *inode, bool is_inode)
2020 block_t valid_block_count;
2021 unsigned int valid_node_count, user_block_count;
2026 err = dquot_alloc_inode(inode);
2031 err = dquot_reserve_block(inode, 1);
2036 if (time_to_inject(sbi, FAULT_BLOCK)) {
2037 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2041 spin_lock(&sbi->stat_lock);
2043 valid_block_count = sbi->total_valid_block_count +
2044 sbi->current_reserved_blocks + 1;
2046 if (!__allow_reserved_blocks(sbi, inode, false))
2047 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2048 user_block_count = sbi->user_block_count;
2049 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2050 user_block_count -= sbi->unusable_block_count;
2052 if (unlikely(valid_block_count > user_block_count)) {
2053 spin_unlock(&sbi->stat_lock);
2057 valid_node_count = sbi->total_valid_node_count + 1;
2058 if (unlikely(valid_node_count > sbi->total_node_count)) {
2059 spin_unlock(&sbi->stat_lock);
2063 sbi->total_valid_node_count++;
2064 sbi->total_valid_block_count++;
2065 spin_unlock(&sbi->stat_lock);
2069 f2fs_mark_inode_dirty_sync(inode, true);
2071 f2fs_i_blocks_write(inode, 1, true, true);
2074 percpu_counter_inc(&sbi->alloc_valid_block_count);
2080 dquot_free_inode(inode);
2082 dquot_release_reservation_block(inode, 1);
2087 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2088 struct inode *inode, bool is_inode)
2090 spin_lock(&sbi->stat_lock);
2092 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2093 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2095 sbi->total_valid_node_count--;
2096 sbi->total_valid_block_count--;
2097 if (sbi->reserved_blocks &&
2098 sbi->current_reserved_blocks < sbi->reserved_blocks)
2099 sbi->current_reserved_blocks++;
2101 spin_unlock(&sbi->stat_lock);
2104 dquot_free_inode(inode);
2106 if (unlikely(inode->i_blocks == 0)) {
2107 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu",
2109 (unsigned long long)inode->i_blocks);
2110 set_sbi_flag(sbi, SBI_NEED_FSCK);
2113 f2fs_i_blocks_write(inode, 1, false, true);
2117 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2119 return sbi->total_valid_node_count;
2122 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2124 percpu_counter_inc(&sbi->total_valid_inode_count);
2127 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2129 percpu_counter_dec(&sbi->total_valid_inode_count);
2132 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2134 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2137 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2138 pgoff_t index, bool for_write)
2142 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2144 page = find_get_page_flags(mapping, index,
2145 FGP_LOCK | FGP_ACCESSED);
2147 page = find_lock_page(mapping, index);
2151 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2152 f2fs_show_injection_info(F2FS_M_SB(mapping),
2159 return grab_cache_page(mapping, index);
2160 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2163 static inline struct page *f2fs_pagecache_get_page(
2164 struct address_space *mapping, pgoff_t index,
2165 int fgp_flags, gfp_t gfp_mask)
2167 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2168 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2172 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2175 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2177 char *src_kaddr = kmap(src);
2178 char *dst_kaddr = kmap(dst);
2180 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2185 static inline void f2fs_put_page(struct page *page, int unlock)
2191 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2197 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2200 f2fs_put_page(dn->node_page, 1);
2201 if (dn->inode_page && dn->node_page != dn->inode_page)
2202 f2fs_put_page(dn->inode_page, 0);
2203 dn->node_page = NULL;
2204 dn->inode_page = NULL;
2207 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2210 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2213 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2218 entry = kmem_cache_alloc(cachep, flags);
2220 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2224 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2226 if (sbi->gc_mode == GC_URGENT)
2229 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2230 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2231 get_pages(sbi, F2FS_WB_CP_DATA) ||
2232 get_pages(sbi, F2FS_DIO_READ) ||
2233 get_pages(sbi, F2FS_DIO_WRITE))
2236 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2237 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2240 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2241 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2244 return f2fs_time_over(sbi, type);
2247 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2248 unsigned long index, void *item)
2250 while (radix_tree_insert(root, index, item))
2254 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2256 static inline bool IS_INODE(struct page *page)
2258 struct f2fs_node *p = F2FS_NODE(page);
2260 return RAW_IS_INODE(p);
2263 static inline int offset_in_addr(struct f2fs_inode *i)
2265 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2266 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2269 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2271 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2274 static inline int f2fs_has_extra_attr(struct inode *inode);
2275 static inline block_t datablock_addr(struct inode *inode,
2276 struct page *node_page, unsigned int offset)
2278 struct f2fs_node *raw_node;
2281 bool is_inode = IS_INODE(node_page);
2283 raw_node = F2FS_NODE(node_page);
2285 /* from GC path only */
2288 base = offset_in_addr(&raw_node->i);
2289 else if (f2fs_has_extra_attr(inode))
2290 base = get_extra_isize(inode);
2293 addr_array = blkaddr_in_node(raw_node);
2294 return le32_to_cpu(addr_array[base + offset]);
2297 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2302 mask = 1 << (7 - (nr & 0x07));
2303 return mask & *addr;
2306 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2311 mask = 1 << (7 - (nr & 0x07));
2315 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2320 mask = 1 << (7 - (nr & 0x07));
2324 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2330 mask = 1 << (7 - (nr & 0x07));
2336 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2342 mask = 1 << (7 - (nr & 0x07));
2348 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2353 mask = 1 << (7 - (nr & 0x07));
2358 * On-disk inode flags (f2fs_inode::i_flags)
2360 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2361 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2362 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2363 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2364 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2365 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2366 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2367 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2368 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2370 /* Flags that should be inherited by new inodes from their parent. */
2371 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2372 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2375 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2376 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2379 /* Flags that are appropriate for non-directories/regular files. */
2380 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2382 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2386 else if (S_ISREG(mode))
2387 return flags & F2FS_REG_FLMASK;
2389 return flags & F2FS_OTHER_FLMASK;
2392 /* used for f2fs_inode_info->flags */
2394 FI_NEW_INODE, /* indicate newly allocated inode */
2395 FI_DIRTY_INODE, /* indicate inode is dirty or not */
2396 FI_AUTO_RECOVER, /* indicate inode is recoverable */
2397 FI_DIRTY_DIR, /* indicate directory has dirty pages */
2398 FI_INC_LINK, /* need to increment i_nlink */
2399 FI_ACL_MODE, /* indicate acl mode */
2400 FI_NO_ALLOC, /* should not allocate any blocks */
2401 FI_FREE_NID, /* free allocated nide */
2402 FI_NO_EXTENT, /* not to use the extent cache */
2403 FI_INLINE_XATTR, /* used for inline xattr */
2404 FI_INLINE_DATA, /* used for inline data*/
2405 FI_INLINE_DENTRY, /* used for inline dentry */
2406 FI_APPEND_WRITE, /* inode has appended data */
2407 FI_UPDATE_WRITE, /* inode has in-place-update data */
2408 FI_NEED_IPU, /* used for ipu per file */
2409 FI_ATOMIC_FILE, /* indicate atomic file */
2410 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
2411 FI_VOLATILE_FILE, /* indicate volatile file */
2412 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
2413 FI_DROP_CACHE, /* drop dirty page cache */
2414 FI_DATA_EXIST, /* indicate data exists */
2415 FI_INLINE_DOTS, /* indicate inline dot dentries */
2416 FI_DO_DEFRAG, /* indicate defragment is running */
2417 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
2418 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
2419 FI_HOT_DATA, /* indicate file is hot */
2420 FI_EXTRA_ATTR, /* indicate file has extra attribute */
2421 FI_PROJ_INHERIT, /* indicate file inherits projectid */
2422 FI_PIN_FILE, /* indicate file should not be gced */
2423 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
2424 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
2427 static inline void __mark_inode_dirty_flag(struct inode *inode,
2431 case FI_INLINE_XATTR:
2432 case FI_INLINE_DATA:
2433 case FI_INLINE_DENTRY:
2439 case FI_INLINE_DOTS:
2441 f2fs_mark_inode_dirty_sync(inode, true);
2445 static inline void set_inode_flag(struct inode *inode, int flag)
2447 if (!test_bit(flag, &F2FS_I(inode)->flags))
2448 set_bit(flag, &F2FS_I(inode)->flags);
2449 __mark_inode_dirty_flag(inode, flag, true);
2452 static inline int is_inode_flag_set(struct inode *inode, int flag)
2454 return test_bit(flag, &F2FS_I(inode)->flags);
2457 static inline void clear_inode_flag(struct inode *inode, int flag)
2459 if (test_bit(flag, &F2FS_I(inode)->flags))
2460 clear_bit(flag, &F2FS_I(inode)->flags);
2461 __mark_inode_dirty_flag(inode, flag, false);
2464 static inline bool f2fs_verity_in_progress(struct inode *inode)
2466 return IS_ENABLED(CONFIG_FS_VERITY) &&
2467 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2470 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2472 F2FS_I(inode)->i_acl_mode = mode;
2473 set_inode_flag(inode, FI_ACL_MODE);
2474 f2fs_mark_inode_dirty_sync(inode, false);
2477 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2483 f2fs_mark_inode_dirty_sync(inode, true);
2486 static inline void f2fs_i_blocks_write(struct inode *inode,
2487 block_t diff, bool add, bool claim)
2489 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2490 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2492 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2495 dquot_claim_block(inode, diff);
2497 dquot_alloc_block_nofail(inode, diff);
2499 dquot_free_block(inode, diff);
2502 f2fs_mark_inode_dirty_sync(inode, true);
2503 if (clean || recover)
2504 set_inode_flag(inode, FI_AUTO_RECOVER);
2507 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2509 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2510 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2512 if (i_size_read(inode) == i_size)
2515 i_size_write(inode, i_size);
2516 f2fs_mark_inode_dirty_sync(inode, true);
2517 if (clean || recover)
2518 set_inode_flag(inode, FI_AUTO_RECOVER);
2521 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2523 F2FS_I(inode)->i_current_depth = depth;
2524 f2fs_mark_inode_dirty_sync(inode, true);
2527 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2530 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2531 f2fs_mark_inode_dirty_sync(inode, true);
2534 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2536 F2FS_I(inode)->i_xattr_nid = xnid;
2537 f2fs_mark_inode_dirty_sync(inode, true);
2540 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2542 F2FS_I(inode)->i_pino = pino;
2543 f2fs_mark_inode_dirty_sync(inode, true);
2546 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2548 struct f2fs_inode_info *fi = F2FS_I(inode);
2550 if (ri->i_inline & F2FS_INLINE_XATTR)
2551 set_bit(FI_INLINE_XATTR, &fi->flags);
2552 if (ri->i_inline & F2FS_INLINE_DATA)
2553 set_bit(FI_INLINE_DATA, &fi->flags);
2554 if (ri->i_inline & F2FS_INLINE_DENTRY)
2555 set_bit(FI_INLINE_DENTRY, &fi->flags);
2556 if (ri->i_inline & F2FS_DATA_EXIST)
2557 set_bit(FI_DATA_EXIST, &fi->flags);
2558 if (ri->i_inline & F2FS_INLINE_DOTS)
2559 set_bit(FI_INLINE_DOTS, &fi->flags);
2560 if (ri->i_inline & F2FS_EXTRA_ATTR)
2561 set_bit(FI_EXTRA_ATTR, &fi->flags);
2562 if (ri->i_inline & F2FS_PIN_FILE)
2563 set_bit(FI_PIN_FILE, &fi->flags);
2566 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2570 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2571 ri->i_inline |= F2FS_INLINE_XATTR;
2572 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2573 ri->i_inline |= F2FS_INLINE_DATA;
2574 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2575 ri->i_inline |= F2FS_INLINE_DENTRY;
2576 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2577 ri->i_inline |= F2FS_DATA_EXIST;
2578 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2579 ri->i_inline |= F2FS_INLINE_DOTS;
2580 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2581 ri->i_inline |= F2FS_EXTRA_ATTR;
2582 if (is_inode_flag_set(inode, FI_PIN_FILE))
2583 ri->i_inline |= F2FS_PIN_FILE;
2586 static inline int f2fs_has_extra_attr(struct inode *inode)
2588 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2591 static inline int f2fs_has_inline_xattr(struct inode *inode)
2593 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2596 static inline unsigned int addrs_per_inode(struct inode *inode)
2598 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
2599 get_inline_xattr_addrs(inode);
2600 return ALIGN_DOWN(addrs, 1);
2603 static inline unsigned int addrs_per_block(struct inode *inode)
2605 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, 1);
2608 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2610 struct f2fs_inode *ri = F2FS_INODE(page);
2612 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2613 get_inline_xattr_addrs(inode)]);
2616 static inline int inline_xattr_size(struct inode *inode)
2618 if (f2fs_has_inline_xattr(inode))
2619 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2623 static inline int f2fs_has_inline_data(struct inode *inode)
2625 return is_inode_flag_set(inode, FI_INLINE_DATA);
2628 static inline int f2fs_exist_data(struct inode *inode)
2630 return is_inode_flag_set(inode, FI_DATA_EXIST);
2633 static inline int f2fs_has_inline_dots(struct inode *inode)
2635 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2638 static inline bool f2fs_is_pinned_file(struct inode *inode)
2640 return is_inode_flag_set(inode, FI_PIN_FILE);
2643 static inline bool f2fs_is_atomic_file(struct inode *inode)
2645 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2648 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2650 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2653 static inline bool f2fs_is_volatile_file(struct inode *inode)
2655 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2658 static inline bool f2fs_is_first_block_written(struct inode *inode)
2660 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2663 static inline bool f2fs_is_drop_cache(struct inode *inode)
2665 return is_inode_flag_set(inode, FI_DROP_CACHE);
2668 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2670 struct f2fs_inode *ri = F2FS_INODE(page);
2671 int extra_size = get_extra_isize(inode);
2673 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2676 static inline int f2fs_has_inline_dentry(struct inode *inode)
2678 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2681 static inline int is_file(struct inode *inode, int type)
2683 return F2FS_I(inode)->i_advise & type;
2686 static inline void set_file(struct inode *inode, int type)
2688 F2FS_I(inode)->i_advise |= type;
2689 f2fs_mark_inode_dirty_sync(inode, true);
2692 static inline void clear_file(struct inode *inode, int type)
2694 F2FS_I(inode)->i_advise &= ~type;
2695 f2fs_mark_inode_dirty_sync(inode, true);
2698 static inline bool f2fs_is_time_consistent(struct inode *inode)
2700 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2702 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2704 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2706 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
2707 &F2FS_I(inode)->i_crtime))
2712 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2717 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2719 spin_lock(&sbi->inode_lock[DIRTY_META]);
2720 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2721 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2724 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2725 file_keep_isize(inode) ||
2726 i_size_read(inode) & ~PAGE_MASK)
2729 if (!f2fs_is_time_consistent(inode))
2732 down_read(&F2FS_I(inode)->i_sem);
2733 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2734 up_read(&F2FS_I(inode)->i_sem);
2739 static inline bool f2fs_readonly(struct super_block *sb)
2741 return sb_rdonly(sb);
2744 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2746 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2749 static inline bool is_dot_dotdot(const struct qstr *str)
2751 if (str->len == 1 && str->name[0] == '.')
2754 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2760 static inline bool f2fs_may_extent_tree(struct inode *inode)
2762 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2764 if (!test_opt(sbi, EXTENT_CACHE) ||
2765 is_inode_flag_set(inode, FI_NO_EXTENT))
2769 * for recovered files during mount do not create extents
2770 * if shrinker is not registered.
2772 if (list_empty(&sbi->s_list))
2775 return S_ISREG(inode->i_mode);
2778 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2779 size_t size, gfp_t flags)
2783 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2784 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
2788 ret = kmalloc(size, flags);
2792 return kvmalloc(size, flags);
2795 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2796 size_t size, gfp_t flags)
2798 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2801 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2802 size_t size, gfp_t flags)
2804 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2805 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
2809 return kvmalloc(size, flags);
2812 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2813 size_t size, gfp_t flags)
2815 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2818 static inline int get_extra_isize(struct inode *inode)
2820 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2823 static inline int get_inline_xattr_addrs(struct inode *inode)
2825 return F2FS_I(inode)->i_inline_xattr_size;
2828 #define f2fs_get_inode_mode(i) \
2829 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2830 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2832 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2833 (offsetof(struct f2fs_inode, i_extra_end) - \
2834 offsetof(struct f2fs_inode, i_extra_isize)) \
2836 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2837 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2838 ((offsetof(typeof(*(f2fs_inode)), field) + \
2839 sizeof((f2fs_inode)->field)) \
2840 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
2842 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2846 spin_lock(&sbi->iostat_lock);
2847 for (i = 0; i < NR_IO_TYPE; i++)
2848 sbi->write_iostat[i] = 0;
2849 spin_unlock(&sbi->iostat_lock);
2852 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2853 enum iostat_type type, unsigned long long io_bytes)
2855 if (!sbi->iostat_enable)
2857 spin_lock(&sbi->iostat_lock);
2858 sbi->write_iostat[type] += io_bytes;
2860 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2861 sbi->write_iostat[APP_BUFFERED_IO] =
2862 sbi->write_iostat[APP_WRITE_IO] -
2863 sbi->write_iostat[APP_DIRECT_IO];
2864 spin_unlock(&sbi->iostat_lock);
2867 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
2869 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
2871 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2872 block_t blkaddr, int type);
2873 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
2874 block_t blkaddr, int type)
2876 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
2877 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
2879 f2fs_bug_on(sbi, 1);
2883 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
2885 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
2890 static inline void f2fs_set_page_private(struct page *page,
2893 if (PagePrivate(page))
2897 SetPagePrivate(page);
2898 set_page_private(page, data);
2901 static inline void f2fs_clear_page_private(struct page *page)
2903 if (!PagePrivate(page))
2906 set_page_private(page, 0);
2907 ClearPagePrivate(page);
2908 f2fs_put_page(page, 0);
2914 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2915 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
2916 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
2917 int f2fs_truncate(struct inode *inode);
2918 int f2fs_getattr(const struct path *path, struct kstat *stat,
2919 u32 request_mask, unsigned int flags);
2920 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2921 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2922 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2923 int f2fs_precache_extents(struct inode *inode);
2924 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2925 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2926 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
2927 int f2fs_pin_file_control(struct inode *inode, bool inc);
2932 void f2fs_set_inode_flags(struct inode *inode);
2933 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2934 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2935 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2936 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2937 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2938 void f2fs_update_inode(struct inode *inode, struct page *node_page);
2939 void f2fs_update_inode_page(struct inode *inode);
2940 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2941 void f2fs_evict_inode(struct inode *inode);
2942 void f2fs_handle_failed_inode(struct inode *inode);
2947 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
2948 bool hot, bool set);
2949 struct dentry *f2fs_get_parent(struct dentry *child);
2951 extern int f2fs_ci_compare(const struct inode *parent,
2952 const struct qstr *name,
2953 const struct qstr *entry,
2959 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
2960 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
2961 f2fs_hash_t namehash, int *max_slots,
2962 struct f2fs_dentry_ptr *d);
2963 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2964 unsigned int start_pos, struct fscrypt_str *fstr);
2965 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
2966 struct f2fs_dentry_ptr *d);
2967 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
2968 const struct qstr *new_name,
2969 const struct qstr *orig_name, struct page *dpage);
2970 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
2971 unsigned int current_depth);
2972 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
2973 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2974 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2975 struct fscrypt_name *fname, struct page **res_page);
2976 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2977 const struct qstr *child, struct page **res_page);
2978 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2979 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2980 struct page **page);
2981 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2982 struct page *page, struct inode *inode);
2983 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2984 const struct qstr *name, f2fs_hash_t name_hash,
2985 unsigned int bit_pos);
2986 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2987 const struct qstr *orig_name,
2988 struct inode *inode, nid_t ino, umode_t mode);
2989 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
2990 struct inode *inode, nid_t ino, umode_t mode);
2991 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
2992 struct inode *inode, nid_t ino, umode_t mode);
2993 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2994 struct inode *dir, struct inode *inode);
2995 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2996 bool f2fs_empty_dir(struct inode *dir);
2998 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3000 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3001 inode, inode->i_ino, inode->i_mode);
3007 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3008 void f2fs_inode_synced(struct inode *inode);
3009 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3010 int f2fs_quota_sync(struct super_block *sb, int type);
3011 void f2fs_quota_off_umount(struct super_block *sb);
3012 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3013 int f2fs_sync_fs(struct super_block *sb, int sync);
3014 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3019 f2fs_hash_t f2fs_dentry_hash(const struct inode *dir,
3020 const struct qstr *name_info, struct fscrypt_name *fname);
3025 struct dnode_of_data;
3028 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3029 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3030 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3031 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3032 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3033 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3034 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3035 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3036 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3037 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3038 struct node_info *ni);
3039 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3040 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3041 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3042 int f2fs_truncate_xattr_node(struct inode *inode);
3043 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3044 unsigned int seq_id);
3045 int f2fs_remove_inode_page(struct inode *inode);
3046 struct page *f2fs_new_inode_page(struct inode *inode);
3047 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3048 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3049 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3050 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3051 int f2fs_move_node_page(struct page *node_page, int gc_type);
3052 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3053 struct writeback_control *wbc, bool atomic,
3054 unsigned int *seq_id);
3055 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3056 struct writeback_control *wbc,
3057 bool do_balance, enum iostat_type io_type);
3058 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3059 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3060 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3061 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3062 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3063 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3064 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3065 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3066 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3067 unsigned int segno, struct f2fs_summary_block *sum);
3068 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3069 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3070 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3071 int __init f2fs_create_node_manager_caches(void);
3072 void f2fs_destroy_node_manager_caches(void);
3077 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3078 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3079 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3080 void f2fs_drop_inmem_pages(struct inode *inode);
3081 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3082 int f2fs_commit_inmem_pages(struct inode *inode);
3083 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3084 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
3085 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3086 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3087 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3088 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3089 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3090 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3091 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3092 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3093 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3094 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3095 struct cp_control *cpc);
3096 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3097 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3098 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3099 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3100 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3101 void allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3102 unsigned int start, unsigned int end);
3103 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type);
3104 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3105 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3106 struct cp_control *cpc);
3107 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3108 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3110 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3111 enum iostat_type io_type);
3112 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3113 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3114 struct f2fs_io_info *fio);
3115 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3116 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3117 block_t old_blkaddr, block_t new_blkaddr,
3118 bool recover_curseg, bool recover_newaddr);
3119 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3120 block_t old_addr, block_t new_addr,
3121 unsigned char version, bool recover_curseg,
3122 bool recover_newaddr);
3123 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3124 block_t old_blkaddr, block_t *new_blkaddr,
3125 struct f2fs_summary *sum, int type,
3126 struct f2fs_io_info *fio, bool add_list);
3127 void f2fs_wait_on_page_writeback(struct page *page,
3128 enum page_type type, bool ordered, bool locked);
3129 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3130 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3132 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3133 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3134 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3135 unsigned int val, int alloc);
3136 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3137 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3138 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3139 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3140 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3141 int __init f2fs_create_segment_manager_caches(void);
3142 void f2fs_destroy_segment_manager_caches(void);
3143 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3144 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3145 enum page_type type, enum temp_type temp);
3150 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3151 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3152 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3153 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index);
3154 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3155 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3156 block_t blkaddr, int type);
3157 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3158 int type, bool sync);
3159 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3160 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3161 long nr_to_write, enum iostat_type io_type);
3162 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3163 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3164 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3165 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3166 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3167 unsigned int devidx, int type);
3168 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3169 unsigned int devidx, int type);
3170 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3171 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3172 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3173 void f2fs_add_orphan_inode(struct inode *inode);
3174 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3175 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3176 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3177 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3178 void f2fs_remove_dirty_inode(struct inode *inode);
3179 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3180 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
3181 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3182 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3183 int __init f2fs_create_checkpoint_caches(void);
3184 void f2fs_destroy_checkpoint_caches(void);
3189 int __init f2fs_init_bioset(void);
3190 void f2fs_destroy_bioset(void);
3191 struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool no_fail);
3192 int f2fs_init_post_read_processing(void);
3193 void f2fs_destroy_post_read_processing(void);
3194 int f2fs_init_bio_entry_cache(void);
3195 void f2fs_destroy_bio_entry_cache(void);
3196 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3197 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3198 struct inode *inode, struct page *page,
3199 nid_t ino, enum page_type type);
3200 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3201 struct bio **bio, struct page *page);
3202 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3203 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3204 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3205 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3206 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3207 block_t blk_addr, struct bio *bio);
3208 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3209 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3210 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3211 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3212 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3213 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3214 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3215 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3216 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3217 int op_flags, bool for_write);
3218 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3219 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3221 struct page *f2fs_get_new_data_page(struct inode *inode,
3222 struct page *ipage, pgoff_t index, bool new_i_size);
3223 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3224 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3225 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3226 int create, int flag);
3227 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3228 u64 start, u64 len);
3229 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3230 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3231 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3232 unsigned int length);
3233 int f2fs_release_page(struct page *page, gfp_t wait);
3234 #ifdef CONFIG_MIGRATION
3235 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3236 struct page *page, enum migrate_mode mode);
3238 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3239 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3244 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3245 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3246 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3247 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3248 unsigned int segno);
3249 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3250 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3255 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3256 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3261 #ifdef CONFIG_F2FS_STAT_FS
3262 struct f2fs_stat_info {
3263 struct list_head stat_list;
3264 struct f2fs_sb_info *sbi;
3265 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3266 int main_area_segs, main_area_sections, main_area_zones;
3267 unsigned long long hit_largest, hit_cached, hit_rbtree;
3268 unsigned long long hit_total, total_ext;
3269 int ext_tree, zombie_tree, ext_node;
3270 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3271 int ndirty_data, ndirty_qdata;
3273 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3274 int nats, dirty_nats, sits, dirty_sits;
3275 int free_nids, avail_nids, alloc_nids;
3276 int total_count, utilization;
3277 int bg_gc, nr_wb_cp_data, nr_wb_data;
3278 int nr_rd_data, nr_rd_node, nr_rd_meta;
3279 int nr_dio_read, nr_dio_write;
3280 unsigned int io_skip_bggc, other_skip_bggc;
3281 int nr_flushing, nr_flushed, flush_list_empty;
3282 int nr_discarding, nr_discarded;
3284 unsigned int undiscard_blks;
3285 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3286 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3287 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3288 unsigned int bimodal, avg_vblocks;
3289 int util_free, util_valid, util_invalid;
3290 int rsvd_segs, overp_segs;
3291 int dirty_count, node_pages, meta_pages;
3292 int prefree_count, call_count, cp_count, bg_cp_count;
3293 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3294 int bg_node_segs, bg_data_segs;
3295 int tot_blks, data_blks, node_blks;
3296 int bg_data_blks, bg_node_blks;
3297 unsigned long long skipped_atomic_files[2];
3298 int curseg[NR_CURSEG_TYPE];
3299 int cursec[NR_CURSEG_TYPE];
3300 int curzone[NR_CURSEG_TYPE];
3302 unsigned int meta_count[META_MAX];
3303 unsigned int segment_count[2];
3304 unsigned int block_count[2];
3305 unsigned int inplace_count;
3306 unsigned long long base_mem, cache_mem, page_mem;
3309 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3311 return (struct f2fs_stat_info *)sbi->stat_info;
3314 #define stat_inc_cp_count(si) ((si)->cp_count++)
3315 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3316 #define stat_inc_call_count(si) ((si)->call_count++)
3317 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
3318 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3319 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3320 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3321 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3322 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3323 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3324 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3325 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3326 #define stat_inc_inline_xattr(inode) \
3328 if (f2fs_has_inline_xattr(inode)) \
3329 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3331 #define stat_dec_inline_xattr(inode) \
3333 if (f2fs_has_inline_xattr(inode)) \
3334 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3336 #define stat_inc_inline_inode(inode) \
3338 if (f2fs_has_inline_data(inode)) \
3339 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3341 #define stat_dec_inline_inode(inode) \
3343 if (f2fs_has_inline_data(inode)) \
3344 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3346 #define stat_inc_inline_dir(inode) \
3348 if (f2fs_has_inline_dentry(inode)) \
3349 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3351 #define stat_dec_inline_dir(inode) \
3353 if (f2fs_has_inline_dentry(inode)) \
3354 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3356 #define stat_inc_meta_count(sbi, blkaddr) \
3358 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3359 atomic_inc(&(sbi)->meta_count[META_CP]); \
3360 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3361 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3362 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3363 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3364 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3365 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3367 #define stat_inc_seg_type(sbi, curseg) \
3368 ((sbi)->segment_count[(curseg)->alloc_type]++)
3369 #define stat_inc_block_count(sbi, curseg) \
3370 ((sbi)->block_count[(curseg)->alloc_type]++)
3371 #define stat_inc_inplace_blocks(sbi) \
3372 (atomic_inc(&(sbi)->inplace_count))
3373 #define stat_update_max_atomic_write(inode) \
3375 int cur = F2FS_I_SB(inode)->atomic_files; \
3376 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3378 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3380 #define stat_inc_volatile_write(inode) \
3381 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3382 #define stat_dec_volatile_write(inode) \
3383 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3384 #define stat_update_max_volatile_write(inode) \
3386 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3387 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3389 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3391 #define stat_inc_seg_count(sbi, type, gc_type) \
3393 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3395 if ((type) == SUM_TYPE_DATA) { \
3397 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3400 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3404 #define stat_inc_tot_blk_count(si, blks) \
3405 ((si)->tot_blks += (blks))
3407 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3409 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3410 stat_inc_tot_blk_count(si, blks); \
3411 si->data_blks += (blks); \
3412 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3415 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3417 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3418 stat_inc_tot_blk_count(si, blks); \
3419 si->node_blks += (blks); \
3420 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3423 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3424 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3425 void __init f2fs_create_root_stats(void);
3426 void f2fs_destroy_root_stats(void);
3428 #define stat_inc_cp_count(si) do { } while (0)
3429 #define stat_inc_bg_cp_count(si) do { } while (0)
3430 #define stat_inc_call_count(si) do { } while (0)
3431 #define stat_inc_bggc_count(si) do { } while (0)
3432 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3433 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3434 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3435 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3436 #define stat_inc_total_hit(sb) do { } while (0)
3437 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3438 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3439 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3440 #define stat_inc_inline_xattr(inode) do { } while (0)
3441 #define stat_dec_inline_xattr(inode) do { } while (0)
3442 #define stat_inc_inline_inode(inode) do { } while (0)
3443 #define stat_dec_inline_inode(inode) do { } while (0)
3444 #define stat_inc_inline_dir(inode) do { } while (0)
3445 #define stat_dec_inline_dir(inode) do { } while (0)
3446 #define stat_inc_atomic_write(inode) do { } while (0)
3447 #define stat_dec_atomic_write(inode) do { } while (0)
3448 #define stat_update_max_atomic_write(inode) do { } while (0)
3449 #define stat_inc_volatile_write(inode) do { } while (0)
3450 #define stat_dec_volatile_write(inode) do { } while (0)
3451 #define stat_update_max_volatile_write(inode) do { } while (0)
3452 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3453 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3454 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3455 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3456 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3457 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3458 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3459 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3461 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3462 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3463 static inline void __init f2fs_create_root_stats(void) { }
3464 static inline void f2fs_destroy_root_stats(void) { }
3467 extern const struct file_operations f2fs_dir_operations;
3468 #ifdef CONFIG_UNICODE
3469 extern const struct dentry_operations f2fs_dentry_ops;
3471 extern const struct file_operations f2fs_file_operations;
3472 extern const struct inode_operations f2fs_file_inode_operations;
3473 extern const struct address_space_operations f2fs_dblock_aops;
3474 extern const struct address_space_operations f2fs_node_aops;
3475 extern const struct address_space_operations f2fs_meta_aops;
3476 extern const struct inode_operations f2fs_dir_inode_operations;
3477 extern const struct inode_operations f2fs_symlink_inode_operations;
3478 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3479 extern const struct inode_operations f2fs_special_inode_operations;
3480 extern struct kmem_cache *f2fs_inode_entry_slab;
3485 bool f2fs_may_inline_data(struct inode *inode);
3486 bool f2fs_may_inline_dentry(struct inode *inode);
3487 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3488 void f2fs_truncate_inline_inode(struct inode *inode,
3489 struct page *ipage, u64 from);
3490 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3491 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3492 int f2fs_convert_inline_inode(struct inode *inode);
3493 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3494 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3495 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3496 struct fscrypt_name *fname, struct page **res_page);
3497 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3498 struct page *ipage);
3499 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3500 const struct qstr *orig_name,
3501 struct inode *inode, nid_t ino, umode_t mode);
3502 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3503 struct page *page, struct inode *dir,
3504 struct inode *inode);
3505 bool f2fs_empty_inline_dir(struct inode *dir);
3506 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3507 struct fscrypt_str *fstr);
3508 int f2fs_inline_data_fiemap(struct inode *inode,
3509 struct fiemap_extent_info *fieinfo,
3510 __u64 start, __u64 len);
3515 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3516 struct shrink_control *sc);
3517 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3518 struct shrink_control *sc);
3519 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3520 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3525 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
3526 struct rb_entry *cached_re, unsigned int ofs);
3527 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3528 struct rb_root_cached *root,
3529 struct rb_node **parent,
3530 unsigned int ofs, bool *leftmost);
3531 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
3532 struct rb_entry *cached_re, unsigned int ofs,
3533 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3534 struct rb_node ***insert_p, struct rb_node **insert_parent,
3535 bool force, bool *leftmost);
3536 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3537 struct rb_root_cached *root);
3538 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3539 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3540 void f2fs_drop_extent_tree(struct inode *inode);
3541 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3542 void f2fs_destroy_extent_tree(struct inode *inode);
3543 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3544 struct extent_info *ei);
3545 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3546 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3547 pgoff_t fofs, block_t blkaddr, unsigned int len);
3548 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3549 int __init f2fs_create_extent_cache(void);
3550 void f2fs_destroy_extent_cache(void);
3555 int __init f2fs_init_sysfs(void);
3556 void f2fs_exit_sysfs(void);
3557 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3558 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3561 extern const struct fsverity_operations f2fs_verityops;
3566 static inline bool f2fs_encrypted_file(struct inode *inode)
3568 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
3571 static inline void f2fs_set_encrypted_inode(struct inode *inode)
3573 #ifdef CONFIG_FS_ENCRYPTION
3574 file_set_encrypt(inode);
3575 f2fs_set_inode_flags(inode);
3580 * Returns true if the reads of the inode's data need to undergo some
3581 * postprocessing step, like decryption or authenticity verification.
3583 static inline bool f2fs_post_read_required(struct inode *inode)
3585 return f2fs_encrypted_file(inode) || fsverity_active(inode);
3588 #define F2FS_FEATURE_FUNCS(name, flagname) \
3589 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
3591 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
3594 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3595 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3596 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3597 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3598 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3599 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3600 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3601 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3602 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3603 F2FS_FEATURE_FUNCS(verity, VERITY);
3604 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
3605 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
3607 #ifdef CONFIG_BLK_DEV_ZONED
3608 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
3611 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3613 return test_bit(zno, FDEV(devi).blkz_seq);
3617 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
3619 return f2fs_sb_has_blkzoned(sbi);
3622 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
3624 return blk_queue_discard(bdev_get_queue(bdev)) ||
3625 bdev_is_zoned(bdev);
3628 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
3632 if (!f2fs_is_multi_device(sbi))
3633 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
3635 for (i = 0; i < sbi->s_ndevs; i++)
3636 if (f2fs_bdev_support_discard(FDEV(i).bdev))
3641 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
3643 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
3644 f2fs_hw_should_discard(sbi);
3647 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
3651 if (!f2fs_is_multi_device(sbi))
3652 return bdev_read_only(sbi->sb->s_bdev);
3654 for (i = 0; i < sbi->s_ndevs; i++)
3655 if (bdev_read_only(FDEV(i).bdev))
3661 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3663 clear_opt(sbi, ADAPTIVE);
3664 clear_opt(sbi, LFS);
3667 case F2FS_MOUNT_ADAPTIVE:
3668 set_opt(sbi, ADAPTIVE);
3670 case F2FS_MOUNT_LFS:
3676 static inline bool f2fs_may_encrypt(struct inode *inode)
3678 #ifdef CONFIG_FS_ENCRYPTION
3679 umode_t mode = inode->i_mode;
3681 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3687 static inline int block_unaligned_IO(struct inode *inode,
3688 struct kiocb *iocb, struct iov_iter *iter)
3690 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
3691 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
3692 loff_t offset = iocb->ki_pos;
3693 unsigned long align = offset | iov_iter_alignment(iter);
3695 return align & blocksize_mask;
3698 static inline int allow_outplace_dio(struct inode *inode,
3699 struct kiocb *iocb, struct iov_iter *iter)
3701 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3702 int rw = iov_iter_rw(iter);
3704 return (test_opt(sbi, LFS) && (rw == WRITE) &&
3705 !block_unaligned_IO(inode, iocb, iter));
3708 static inline bool f2fs_force_buffered_io(struct inode *inode,
3709 struct kiocb *iocb, struct iov_iter *iter)
3711 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3712 int rw = iov_iter_rw(iter);
3714 if (f2fs_post_read_required(inode))
3716 if (f2fs_is_multi_device(sbi))
3719 * for blkzoned device, fallback direct IO to buffered IO, so
3720 * all IOs can be serialized by log-structured write.
3722 if (f2fs_sb_has_blkzoned(sbi))
3724 if (test_opt(sbi, LFS) && (rw == WRITE)) {
3725 if (block_unaligned_IO(inode, iocb, iter))
3727 if (F2FS_IO_ALIGNED(sbi))
3730 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) &&
3731 !IS_SWAPFILE(inode))
3737 #ifdef CONFIG_F2FS_FAULT_INJECTION
3738 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
3741 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
3744 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
3747 if (f2fs_sb_has_quota_ino(sbi))
3749 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
3750 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
3751 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
3757 #define EFSBADCRC EBADMSG /* Bad CRC detected */
3758 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
3760 #endif /* _LINUX_F2FS_H */