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11#ifndef _LINUX_F2FS_H
12#define _LINUX_F2FS_H
13
14#include <linux/types.h>
15#include <linux/page-flags.h>
16#include <linux/buffer_head.h>
17#include <linux/slab.h>
18#include <linux/crc32.h>
19#include <linux/magic.h>
20#include <linux/kobject.h>
21#include <linux/sched.h>
22#include <linux/cred.h>
23#include <linux/vmalloc.h>
24#include <linux/bio.h>
25#include <linux/blkdev.h>
26#include <linux/quotaops.h>
27#include <crypto/hash.h>
28
29#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION)
30#include <linux/fscrypt.h>
31
32#ifdef CONFIG_F2FS_CHECK_FS
33#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
34#else
35#define f2fs_bug_on(sbi, condition) \
36 do { \
37 if (unlikely(condition)) { \
38 WARN_ON(1); \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
40 } \
41 } while (0)
42#endif
43
44enum {
45 FAULT_KMALLOC,
46 FAULT_KVMALLOC,
47 FAULT_PAGE_ALLOC,
48 FAULT_PAGE_GET,
49 FAULT_ALLOC_BIO,
50 FAULT_ALLOC_NID,
51 FAULT_ORPHAN,
52 FAULT_BLOCK,
53 FAULT_DIR_DEPTH,
54 FAULT_EVICT_INODE,
55 FAULT_TRUNCATE,
56 FAULT_IO,
57 FAULT_CHECKPOINT,
58 FAULT_DISCARD,
59 FAULT_MAX,
60};
61
62#ifdef CONFIG_F2FS_FAULT_INJECTION
63#define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
64
65struct f2fs_fault_info {
66 atomic_t inject_ops;
67 unsigned int inject_rate;
68 unsigned int inject_type;
69};
70
71extern char *f2fs_fault_name[FAULT_MAX];
72#define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
73#endif
74
75
76
77
78#define F2FS_MOUNT_BG_GC 0x00000001
79#define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
80#define F2FS_MOUNT_DISCARD 0x00000004
81#define F2FS_MOUNT_NOHEAP 0x00000008
82#define F2FS_MOUNT_XATTR_USER 0x00000010
83#define F2FS_MOUNT_POSIX_ACL 0x00000020
84#define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
85#define F2FS_MOUNT_INLINE_XATTR 0x00000080
86#define F2FS_MOUNT_INLINE_DATA 0x00000100
87#define F2FS_MOUNT_INLINE_DENTRY 0x00000200
88#define F2FS_MOUNT_FLUSH_MERGE 0x00000400
89#define F2FS_MOUNT_NOBARRIER 0x00000800
90#define F2FS_MOUNT_FASTBOOT 0x00001000
91#define F2FS_MOUNT_EXTENT_CACHE 0x00002000
92#define F2FS_MOUNT_FORCE_FG_GC 0x00004000
93#define F2FS_MOUNT_DATA_FLUSH 0x00008000
94#define F2FS_MOUNT_FAULT_INJECTION 0x00010000
95#define F2FS_MOUNT_ADAPTIVE 0x00020000
96#define F2FS_MOUNT_LFS 0x00040000
97#define F2FS_MOUNT_USRQUOTA 0x00080000
98#define F2FS_MOUNT_GRPQUOTA 0x00100000
99#define F2FS_MOUNT_PRJQUOTA 0x00200000
100#define F2FS_MOUNT_QUOTA 0x00400000
101#define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
102#define F2FS_MOUNT_RESERVE_ROOT 0x01000000
103
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)
108
109#define ver_after(a, b) (typecheck(unsigned long long, a) && \
110 typecheck(unsigned long long, b) && \
111 ((long long)((a) - (b)) > 0))
112
113typedef u32 block_t;
114
115
116
117typedef u32 nid_t;
118
119struct f2fs_mount_info {
120 unsigned int opt;
121 int write_io_size_bits;
122 block_t root_reserved_blocks;
123 kuid_t s_resuid;
124 kgid_t s_resgid;
125 int active_logs;
126 int inline_xattr_size;
127#ifdef CONFIG_F2FS_FAULT_INJECTION
128 struct f2fs_fault_info fault_info;
129#endif
130#ifdef CONFIG_QUOTA
131
132 char *s_qf_names[MAXQUOTAS];
133 int s_jquota_fmt;
134#endif
135
136 int whint_mode;
137 int alloc_mode;
138 int fsync_mode;
139 bool test_dummy_encryption;
140};
141
142#define F2FS_FEATURE_ENCRYPT 0x0001
143#define F2FS_FEATURE_BLKZONED 0x0002
144#define F2FS_FEATURE_ATOMIC_WRITE 0x0004
145#define F2FS_FEATURE_EXTRA_ATTR 0x0008
146#define F2FS_FEATURE_PRJQUOTA 0x0010
147#define F2FS_FEATURE_INODE_CHKSUM 0x0020
148#define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
149#define F2FS_FEATURE_QUOTA_INO 0x0080
150#define F2FS_FEATURE_INODE_CRTIME 0x0100
151#define F2FS_FEATURE_LOST_FOUND 0x0200
152#define F2FS_FEATURE_VERITY 0x0400
153
154#define F2FS_HAS_FEATURE(sb, mask) \
155 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
156#define F2FS_SET_FEATURE(sb, mask) \
157 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
158#define F2FS_CLEAR_FEATURE(sb, mask) \
159 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
160
161
162
163
164#define F2FS_DEF_RESUID 0
165#define F2FS_DEF_RESGID 0
166
167
168
169
170enum {
171 NAT_BITMAP,
172 SIT_BITMAP
173};
174
175#define CP_UMOUNT 0x00000001
176#define CP_FASTBOOT 0x00000002
177#define CP_SYNC 0x00000004
178#define CP_RECOVERY 0x00000008
179#define CP_DISCARD 0x00000010
180#define CP_TRIMMED 0x00000020
181
182#define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
183#define DEF_MAX_DISCARD_REQUEST 8
184#define DEF_MIN_DISCARD_ISSUE_TIME 50
185#define DEF_MID_DISCARD_ISSUE_TIME 500
186#define DEF_MAX_DISCARD_ISSUE_TIME 60000
187#define DEF_DISCARD_URGENT_UTIL 80
188#define DEF_CP_INTERVAL 60
189#define DEF_IDLE_INTERVAL 5
190
191struct cp_control {
192 int reason;
193 __u64 trim_start;
194 __u64 trim_end;
195 __u64 trim_minlen;
196};
197
198
199
200
201enum {
202 META_CP,
203 META_NAT,
204 META_SIT,
205 META_SSA,
206 META_POR,
207 DATA_GENERIC,
208 META_GENERIC,
209};
210
211
212enum {
213 ORPHAN_INO,
214 APPEND_INO,
215 UPDATE_INO,
216 TRANS_DIR_INO,
217 FLUSH_INO,
218 MAX_INO_ENTRY,
219};
220
221struct ino_entry {
222 struct list_head list;
223 nid_t ino;
224 unsigned int dirty_device;
225};
226
227
228struct inode_entry {
229 struct list_head list;
230 struct inode *inode;
231};
232
233struct fsync_node_entry {
234 struct list_head list;
235 struct page *page;
236 unsigned int seq_id;
237};
238
239
240struct discard_entry {
241 struct list_head list;
242 block_t start_blkaddr;
243 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE];
244};
245
246
247#define DEFAULT_DISCARD_GRANULARITY 16
248
249
250#define MAX_PLIST_NUM 512
251#define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
252 (MAX_PLIST_NUM - 1) : (blk_num - 1))
253
254enum {
255 D_PREP,
256 D_PARTIAL,
257 D_SUBMIT,
258 D_DONE,
259};
260
261struct discard_info {
262 block_t lstart;
263 block_t len;
264 block_t start;
265};
266
267struct discard_cmd {
268 struct rb_node rb_node;
269 union {
270 struct {
271 block_t lstart;
272 block_t len;
273 block_t start;
274 };
275 struct discard_info di;
276
277 };
278 struct list_head list;
279 struct completion wait;
280 struct block_device *bdev;
281 unsigned short ref;
282 unsigned char state;
283 unsigned char issuing;
284 int error;
285 spinlock_t lock;
286 unsigned short bio_ref;
287};
288
289enum {
290 DPOLICY_BG,
291 DPOLICY_FORCE,
292 DPOLICY_FSTRIM,
293 DPOLICY_UMOUNT,
294 MAX_DPOLICY,
295};
296
297struct discard_policy {
298 int type;
299 unsigned int min_interval;
300 unsigned int mid_interval;
301 unsigned int max_interval;
302 unsigned int max_requests;
303 unsigned int io_aware_gran;
304 bool io_aware;
305 bool sync;
306 bool ordered;
307 unsigned int granularity;
308};
309
310struct discard_cmd_control {
311 struct task_struct *f2fs_issue_discard;
312 struct list_head entry_list;
313 struct list_head pend_list[MAX_PLIST_NUM];
314 struct list_head wait_list;
315 struct list_head fstrim_list;
316 wait_queue_head_t discard_wait_queue;
317 unsigned int discard_wake;
318 struct mutex cmd_lock;
319 unsigned int nr_discards;
320 unsigned int max_discards;
321 unsigned int discard_granularity;
322 unsigned int undiscard_blks;
323 unsigned int next_pos;
324 atomic_t issued_discard;
325 atomic_t issing_discard;
326 atomic_t discard_cmd_cnt;
327 struct rb_root root;
328 bool rbtree_check;
329};
330
331
332struct fsync_inode_entry {
333 struct list_head list;
334 struct inode *inode;
335 block_t blkaddr;
336 block_t last_dentry;
337};
338
339#define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
340#define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
341
342#define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
343#define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
344#define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
345#define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
346
347#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
348#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
349
350static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
351{
352 int before = nats_in_cursum(journal);
353
354 journal->n_nats = cpu_to_le16(before + i);
355 return before;
356}
357
358static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
359{
360 int before = sits_in_cursum(journal);
361
362 journal->n_sits = cpu_to_le16(before + i);
363 return before;
364}
365
366static inline bool __has_cursum_space(struct f2fs_journal *journal,
367 int size, int type)
368{
369 if (type == NAT_JOURNAL)
370 return size <= MAX_NAT_JENTRIES(journal);
371 return size <= MAX_SIT_JENTRIES(journal);
372}
373
374
375
376
377#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
378#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
379#define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
380
381#define F2FS_IOCTL_MAGIC 0xf5
382#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
383#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
384#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
385#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
386#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
387#define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
388#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
389#define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
390 struct f2fs_defragment)
391#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
392 struct f2fs_move_range)
393#define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
394 struct f2fs_flush_device)
395#define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
396 struct f2fs_gc_range)
397#define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
398#define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
399#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
400#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
401
402#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
403#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
404#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
405
406
407
408
409
410#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32)
411#define F2FS_GOING_DOWN_FULLSYNC 0x0
412#define F2FS_GOING_DOWN_METASYNC 0x1
413#define F2FS_GOING_DOWN_NOSYNC 0x2
414#define F2FS_GOING_DOWN_METAFLUSH 0x3
415
416#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
417
418
419
420#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
421#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
422#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
423#endif
424
425#define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
426#define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
427
428struct f2fs_gc_range {
429 u32 sync;
430 u64 start;
431 u64 len;
432};
433
434struct f2fs_defragment {
435 u64 start;
436 u64 len;
437};
438
439struct f2fs_move_range {
440 u32 dst_fd;
441 u64 pos_in;
442 u64 pos_out;
443 u64 len;
444};
445
446struct f2fs_flush_device {
447 u32 dev_num;
448 u32 segments;
449};
450
451
452#define DEF_INLINE_RESERVED_SIZE 1
453#define DEF_MIN_INLINE_SIZE 1
454static inline int get_extra_isize(struct inode *inode);
455static inline int get_inline_xattr_addrs(struct inode *inode);
456#define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
457 (CUR_ADDRS_PER_INODE(inode) - \
458 get_inline_xattr_addrs(inode) - \
459 DEF_INLINE_RESERVED_SIZE))
460
461
462#define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
463 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
464 BITS_PER_BYTE + 1))
465#define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
466 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
467#define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
468 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
469 NR_INLINE_DENTRY(inode) + \
470 INLINE_DENTRY_BITMAP_SIZE(inode)))
471
472
473
474
475
476struct f2fs_dentry_ptr {
477 struct inode *inode;
478 void *bitmap;
479 struct f2fs_dir_entry *dentry;
480 __u8 (*filename)[F2FS_SLOT_LEN];
481 int max;
482 int nr_bitmap;
483};
484
485static inline void make_dentry_ptr_block(struct inode *inode,
486 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
487{
488 d->inode = inode;
489 d->max = NR_DENTRY_IN_BLOCK;
490 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
491 d->bitmap = t->dentry_bitmap;
492 d->dentry = t->dentry;
493 d->filename = t->filename;
494}
495
496static inline void make_dentry_ptr_inline(struct inode *inode,
497 struct f2fs_dentry_ptr *d, void *t)
498{
499 int entry_cnt = NR_INLINE_DENTRY(inode);
500 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
501 int reserved_size = INLINE_RESERVED_SIZE(inode);
502
503 d->inode = inode;
504 d->max = entry_cnt;
505 d->nr_bitmap = bitmap_size;
506 d->bitmap = t;
507 d->dentry = t + bitmap_size + reserved_size;
508 d->filename = t + bitmap_size + reserved_size +
509 SIZE_OF_DIR_ENTRY * entry_cnt;
510}
511
512
513
514
515
516
517#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
518 >> OFFSET_BIT_SHIFT)
519enum {
520 ALLOC_NODE,
521 LOOKUP_NODE,
522 LOOKUP_NODE_RA,
523
524
525
526};
527
528#define DEFAULT_RETRY_IO_COUNT 8
529
530#define F2FS_LINK_MAX 0xffffffff
531
532#define MAX_DIR_RA_PAGES 4
533
534
535#define F2FS_MIN_EXTENT_LEN 64
536
537
538#define EXTENT_CACHE_SHRINK_NUMBER 128
539
540struct rb_entry {
541 struct rb_node rb_node;
542 unsigned int ofs;
543 unsigned int len;
544};
545
546struct extent_info {
547 unsigned int fofs;
548 unsigned int len;
549 u32 blk;
550};
551
552struct extent_node {
553 struct rb_node rb_node;
554 union {
555 struct {
556 unsigned int fofs;
557 unsigned int len;
558 u32 blk;
559 };
560 struct extent_info ei;
561
562 };
563 struct list_head list;
564 struct extent_tree *et;
565};
566
567struct extent_tree {
568 nid_t ino;
569 struct rb_root root;
570 struct extent_node *cached_en;
571 struct extent_info largest;
572 struct list_head list;
573 rwlock_t lock;
574 atomic_t node_cnt;
575};
576
577
578
579
580
581
582#define F2FS_MAP_NEW (1 << BH_New)
583#define F2FS_MAP_MAPPED (1 << BH_Mapped)
584#define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
585#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
586 F2FS_MAP_UNWRITTEN)
587
588struct f2fs_map_blocks {
589 block_t m_pblk;
590 block_t m_lblk;
591 unsigned int m_len;
592 unsigned int m_flags;
593 pgoff_t *m_next_pgofs;
594 pgoff_t *m_next_extent;
595 int m_seg_type;
596};
597
598
599enum {
600 F2FS_GET_BLOCK_DEFAULT,
601 F2FS_GET_BLOCK_FIEMAP,
602 F2FS_GET_BLOCK_BMAP,
603 F2FS_GET_BLOCK_PRE_DIO,
604 F2FS_GET_BLOCK_PRE_AIO,
605 F2FS_GET_BLOCK_PRECACHE,
606};
607
608
609
610
611#define FADVISE_COLD_BIT 0x01
612#define FADVISE_LOST_PINO_BIT 0x02
613#define FADVISE_ENCRYPT_BIT 0x04
614#define FADVISE_ENC_NAME_BIT 0x08
615#define FADVISE_KEEP_SIZE_BIT 0x10
616#define FADVISE_HOT_BIT 0x20
617#define FADVISE_VERITY_BIT 0x40
618
619#define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
620
621#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
622#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
623#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
624#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
625#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
626#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
627#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
628#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
629#define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
630#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
631#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
632#define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
633#define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
634#define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
635#define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
636#define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
637
638#define DEF_DIR_LEVEL 0
639
640enum {
641 GC_FAILURE_PIN,
642 GC_FAILURE_ATOMIC,
643 MAX_GC_FAILURE
644};
645
646struct f2fs_inode_info {
647 struct inode vfs_inode;
648 unsigned long i_flags;
649 unsigned char i_advise;
650 unsigned char i_dir_level;
651 unsigned int i_current_depth;
652
653 unsigned int i_gc_failures[MAX_GC_FAILURE];
654 unsigned int i_pino;
655 umode_t i_acl_mode;
656
657
658 unsigned long flags;
659 struct rw_semaphore i_sem;
660 atomic_t dirty_pages;
661 f2fs_hash_t chash;
662 unsigned int clevel;
663 struct task_struct *task;
664 struct task_struct *cp_task;
665 nid_t i_xattr_nid;
666 loff_t last_disk_size;
667
668#ifdef CONFIG_QUOTA
669 struct dquot *i_dquot[MAXQUOTAS];
670
671
672 qsize_t i_reserved_quota;
673#endif
674 struct list_head dirty_list;
675 struct list_head gdirty_list;
676 struct list_head inmem_ilist;
677 struct list_head inmem_pages;
678 struct task_struct *inmem_task;
679 struct mutex inmem_lock;
680 struct extent_tree *extent_tree;
681
682
683 struct rw_semaphore i_gc_rwsem[2];
684 struct rw_semaphore i_mmap_sem;
685 struct rw_semaphore i_xattr_sem;
686
687 int i_extra_isize;
688 kprojid_t i_projid;
689 int i_inline_xattr_size;
690 struct timespec64 i_crtime;
691 struct timespec64 i_disk_time[4];
692};
693
694static inline void get_extent_info(struct extent_info *ext,
695 struct f2fs_extent *i_ext)
696{
697 ext->fofs = le32_to_cpu(i_ext->fofs);
698 ext->blk = le32_to_cpu(i_ext->blk);
699 ext->len = le32_to_cpu(i_ext->len);
700}
701
702static inline void set_raw_extent(struct extent_info *ext,
703 struct f2fs_extent *i_ext)
704{
705 i_ext->fofs = cpu_to_le32(ext->fofs);
706 i_ext->blk = cpu_to_le32(ext->blk);
707 i_ext->len = cpu_to_le32(ext->len);
708}
709
710static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
711 u32 blk, unsigned int len)
712{
713 ei->fofs = fofs;
714 ei->blk = blk;
715 ei->len = len;
716}
717
718static inline bool __is_discard_mergeable(struct discard_info *back,
719 struct discard_info *front, unsigned int max_len)
720{
721 return (back->lstart + back->len == front->lstart) &&
722 (back->len + front->len <= max_len);
723}
724
725static inline bool __is_discard_back_mergeable(struct discard_info *cur,
726 struct discard_info *back, unsigned int max_len)
727{
728 return __is_discard_mergeable(back, cur, max_len);
729}
730
731static inline bool __is_discard_front_mergeable(struct discard_info *cur,
732 struct discard_info *front, unsigned int max_len)
733{
734 return __is_discard_mergeable(cur, front, max_len);
735}
736
737static inline bool __is_extent_mergeable(struct extent_info *back,
738 struct extent_info *front)
739{
740 return (back->fofs + back->len == front->fofs &&
741 back->blk + back->len == front->blk);
742}
743
744static inline bool __is_back_mergeable(struct extent_info *cur,
745 struct extent_info *back)
746{
747 return __is_extent_mergeable(back, cur);
748}
749
750static inline bool __is_front_mergeable(struct extent_info *cur,
751 struct extent_info *front)
752{
753 return __is_extent_mergeable(cur, front);
754}
755
756extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
757static inline void __try_update_largest_extent(struct inode *inode,
758 struct extent_tree *et, struct extent_node *en)
759{
760 if (en->ei.len > et->largest.len) {
761 et->largest = en->ei;
762 f2fs_mark_inode_dirty_sync(inode, true);
763 }
764}
765
766
767
768
769enum nid_state {
770 FREE_NID,
771 PREALLOC_NID,
772 MAX_NID_STATE,
773};
774
775struct f2fs_nm_info {
776 block_t nat_blkaddr;
777 nid_t max_nid;
778 nid_t available_nids;
779 nid_t next_scan_nid;
780 unsigned int ram_thresh;
781 unsigned int ra_nid_pages;
782 unsigned int dirty_nats_ratio;
783
784
785 struct radix_tree_root nat_root;
786 struct radix_tree_root nat_set_root;
787 struct rw_semaphore nat_tree_lock;
788 struct list_head nat_entries;
789 spinlock_t nat_list_lock;
790 unsigned int nat_cnt;
791 unsigned int dirty_nat_cnt;
792 unsigned int nat_blocks;
793
794
795 struct radix_tree_root free_nid_root;
796 struct list_head free_nid_list;
797 unsigned int nid_cnt[MAX_NID_STATE];
798 spinlock_t nid_list_lock;
799 struct mutex build_lock;
800 unsigned char **free_nid_bitmap;
801 unsigned char *nat_block_bitmap;
802 unsigned short *free_nid_count;
803
804
805 char *nat_bitmap;
806
807 unsigned int nat_bits_blocks;
808 unsigned char *nat_bits;
809 unsigned char *full_nat_bits;
810 unsigned char *empty_nat_bits;
811#ifdef CONFIG_F2FS_CHECK_FS
812 char *nat_bitmap_mir;
813#endif
814 int bitmap_size;
815};
816
817
818
819
820
821
822struct dnode_of_data {
823 struct inode *inode;
824 struct page *inode_page;
825 struct page *node_page;
826 nid_t nid;
827 unsigned int ofs_in_node;
828 bool inode_page_locked;
829 bool node_changed;
830 char cur_level;
831 char max_level;
832 block_t data_blkaddr;
833};
834
835static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
836 struct page *ipage, struct page *npage, nid_t nid)
837{
838 memset(dn, 0, sizeof(*dn));
839 dn->inode = inode;
840 dn->inode_page = ipage;
841 dn->node_page = npage;
842 dn->nid = nid;
843}
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858#define NR_CURSEG_DATA_TYPE (3)
859#define NR_CURSEG_NODE_TYPE (3)
860#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
861
862enum {
863 CURSEG_HOT_DATA = 0,
864 CURSEG_WARM_DATA,
865 CURSEG_COLD_DATA,
866 CURSEG_HOT_NODE,
867 CURSEG_WARM_NODE,
868 CURSEG_COLD_NODE,
869 NO_CHECK_TYPE,
870};
871
872struct flush_cmd {
873 struct completion wait;
874 struct llist_node llnode;
875 nid_t ino;
876 int ret;
877};
878
879struct flush_cmd_control {
880 struct task_struct *f2fs_issue_flush;
881 wait_queue_head_t flush_wait_queue;
882 atomic_t issued_flush;
883 atomic_t issing_flush;
884 struct llist_head issue_list;
885 struct llist_node *dispatch_list;
886};
887
888struct f2fs_sm_info {
889 struct sit_info *sit_info;
890 struct free_segmap_info *free_info;
891 struct dirty_seglist_info *dirty_info;
892 struct curseg_info *curseg_array;
893
894 struct rw_semaphore curseg_lock;
895
896 block_t seg0_blkaddr;
897 block_t main_blkaddr;
898 block_t ssa_blkaddr;
899
900 unsigned int segment_count;
901 unsigned int main_segments;
902 unsigned int reserved_segments;
903 unsigned int ovp_segments;
904
905
906 unsigned int rec_prefree_segments;
907
908
909 unsigned int trim_sections;
910
911 struct list_head sit_entry_set;
912
913 unsigned int ipu_policy;
914 unsigned int min_ipu_util;
915 unsigned int min_fsync_blocks;
916 unsigned int min_seq_blocks;
917 unsigned int min_hot_blocks;
918 unsigned int min_ssr_sections;
919
920
921 struct flush_cmd_control *fcc_info;
922
923
924 struct discard_cmd_control *dcc_info;
925};
926
927
928
929
930
931
932
933
934
935
936#define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
937enum count_type {
938 F2FS_DIRTY_DENTS,
939 F2FS_DIRTY_DATA,
940 F2FS_DIRTY_QDATA,
941 F2FS_DIRTY_NODES,
942 F2FS_DIRTY_META,
943 F2FS_INMEM_PAGES,
944 F2FS_DIRTY_IMETA,
945 F2FS_WB_CP_DATA,
946 F2FS_WB_DATA,
947 NR_COUNT_TYPE,
948};
949
950
951
952
953
954
955
956
957
958
959
960
961#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
962enum page_type {
963 DATA,
964 NODE,
965 META,
966 NR_PAGE_TYPE,
967 META_FLUSH,
968 INMEM,
969 INMEM_DROP,
970 INMEM_INVALIDATE,
971 INMEM_REVOKE,
972 IPU,
973 OPU,
974};
975
976enum temp_type {
977 HOT = 0,
978 WARM,
979 COLD,
980 NR_TEMP_TYPE,
981};
982
983enum need_lock_type {
984 LOCK_REQ = 0,
985 LOCK_DONE,
986 LOCK_RETRY,
987};
988
989enum cp_reason_type {
990 CP_NO_NEEDED,
991 CP_NON_REGULAR,
992 CP_HARDLINK,
993 CP_SB_NEED_CP,
994 CP_WRONG_PINO,
995 CP_NO_SPC_ROLL,
996 CP_NODE_NEED_CP,
997 CP_FASTBOOT_MODE,
998 CP_SPEC_LOG_NUM,
999 CP_RECOVER_DIR,
1000};
1001
1002enum iostat_type {
1003 APP_DIRECT_IO,
1004 APP_BUFFERED_IO,
1005 APP_WRITE_IO,
1006 APP_MAPPED_IO,
1007 FS_DATA_IO,
1008 FS_NODE_IO,
1009 FS_META_IO,
1010 FS_GC_DATA_IO,
1011 FS_GC_NODE_IO,
1012 FS_CP_DATA_IO,
1013 FS_CP_NODE_IO,
1014 FS_CP_META_IO,
1015 FS_DISCARD,
1016 NR_IO_TYPE,
1017};
1018
1019struct f2fs_io_info {
1020 struct f2fs_sb_info *sbi;
1021 nid_t ino;
1022 enum page_type type;
1023 enum temp_type temp;
1024 int op;
1025 int op_flags;
1026 block_t new_blkaddr;
1027 block_t old_blkaddr;
1028 struct page *page;
1029 struct page *encrypted_page;
1030 struct list_head list;
1031 bool submitted;
1032 int need_lock;
1033 bool in_list;
1034 bool is_meta;
1035 bool retry;
1036 enum iostat_type io_type;
1037 struct writeback_control *io_wbc;
1038 unsigned char version;
1039};
1040
1041#define is_read_io(rw) ((rw) == READ)
1042struct f2fs_bio_info {
1043 struct f2fs_sb_info *sbi;
1044 struct bio *bio;
1045 sector_t last_block_in_bio;
1046 struct f2fs_io_info fio;
1047 struct rw_semaphore io_rwsem;
1048 spinlock_t io_lock;
1049 struct list_head io_list;
1050};
1051
1052#define FDEV(i) (sbi->devs[i])
1053#define RDEV(i) (raw_super->devs[i])
1054struct f2fs_dev_info {
1055 struct block_device *bdev;
1056 char path[MAX_PATH_LEN];
1057 unsigned int total_segments;
1058 block_t start_blk;
1059 block_t end_blk;
1060#ifdef CONFIG_BLK_DEV_ZONED
1061 unsigned int nr_blkz;
1062 u8 *blkz_type;
1063#endif
1064};
1065
1066enum inode_type {
1067 DIR_INODE,
1068 FILE_INODE,
1069 DIRTY_META,
1070 ATOMIC_FILE,
1071 NR_INODE_TYPE,
1072};
1073
1074
1075struct inode_management {
1076 struct radix_tree_root ino_root;
1077 spinlock_t ino_lock;
1078 struct list_head ino_list;
1079 unsigned long ino_num;
1080};
1081
1082
1083enum {
1084 SBI_IS_DIRTY,
1085 SBI_IS_CLOSE,
1086 SBI_NEED_FSCK,
1087 SBI_POR_DOING,
1088 SBI_NEED_SB_WRITE,
1089 SBI_NEED_CP,
1090 SBI_IS_SHUTDOWN,
1091};
1092
1093enum {
1094 CP_TIME,
1095 REQ_TIME,
1096 MAX_TIME,
1097};
1098
1099enum {
1100 GC_NORMAL,
1101 GC_IDLE_CB,
1102 GC_IDLE_GREEDY,
1103 GC_URGENT,
1104};
1105
1106enum {
1107 WHINT_MODE_OFF,
1108 WHINT_MODE_USER,
1109 WHINT_MODE_FS,
1110};
1111
1112enum {
1113 ALLOC_MODE_DEFAULT,
1114 ALLOC_MODE_REUSE,
1115};
1116
1117enum fsync_mode {
1118 FSYNC_MODE_POSIX,
1119 FSYNC_MODE_STRICT,
1120 FSYNC_MODE_NOBARRIER,
1121};
1122
1123#ifdef CONFIG_F2FS_FS_ENCRYPTION
1124#define DUMMY_ENCRYPTION_ENABLED(sbi) \
1125 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1126#else
1127#define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1128#endif
1129
1130struct f2fs_sb_info {
1131 struct super_block *sb;
1132 struct proc_dir_entry *s_proc;
1133 struct f2fs_super_block *raw_super;
1134 struct rw_semaphore sb_lock;
1135 int valid_super_block;
1136 unsigned long s_flag;
1137 struct mutex writepages;
1138
1139#ifdef CONFIG_BLK_DEV_ZONED
1140 unsigned int blocks_per_blkz;
1141 unsigned int log_blocks_per_blkz;
1142#endif
1143
1144
1145 struct f2fs_nm_info *nm_info;
1146 struct inode *node_inode;
1147
1148
1149 struct f2fs_sm_info *sm_info;
1150
1151
1152 struct f2fs_bio_info *write_io[NR_PAGE_TYPE];
1153 struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
1154
1155
1156 struct rw_semaphore io_order_lock;
1157 mempool_t *write_io_dummy;
1158
1159
1160 struct f2fs_checkpoint *ckpt;
1161 int cur_cp_pack;
1162 spinlock_t cp_lock;
1163 struct inode *meta_inode;
1164 struct mutex cp_mutex;
1165 struct rw_semaphore cp_rwsem;
1166 struct rw_semaphore node_write;
1167 struct rw_semaphore node_change;
1168 wait_queue_head_t cp_wait;
1169 unsigned long last_time[MAX_TIME];
1170 long interval_time[MAX_TIME];
1171
1172 struct inode_management im[MAX_INO_ENTRY];
1173
1174 spinlock_t fsync_node_lock;
1175 struct list_head fsync_node_list;
1176 unsigned int fsync_seg_id;
1177 unsigned int fsync_node_num;
1178
1179
1180 unsigned int max_orphans;
1181
1182
1183 struct list_head inode_list[NR_INODE_TYPE];
1184 spinlock_t inode_lock[NR_INODE_TYPE];
1185
1186
1187 struct radix_tree_root extent_tree_root;
1188 struct mutex extent_tree_lock;
1189 struct list_head extent_list;
1190 spinlock_t extent_lock;
1191 atomic_t total_ext_tree;
1192 struct list_head zombie_list;
1193 atomic_t total_zombie_tree;
1194 atomic_t total_ext_node;
1195
1196
1197 unsigned int log_sectors_per_block;
1198 unsigned int log_blocksize;
1199 unsigned int blocksize;
1200 unsigned int root_ino_num;
1201 unsigned int node_ino_num;
1202 unsigned int meta_ino_num;
1203 unsigned int log_blocks_per_seg;
1204 unsigned int blocks_per_seg;
1205 unsigned int segs_per_sec;
1206 unsigned int secs_per_zone;
1207 unsigned int total_sections;
1208 unsigned int total_node_count;
1209 unsigned int total_valid_node_count;
1210 loff_t max_file_blocks;
1211 int dir_level;
1212 unsigned int trigger_ssr_threshold;
1213 int readdir_ra;
1214
1215 block_t user_block_count;
1216 block_t total_valid_block_count;
1217 block_t discard_blks;
1218 block_t last_valid_block_count;
1219 block_t reserved_blocks;
1220 block_t current_reserved_blocks;
1221
1222 unsigned int nquota_files;
1223
1224 u32 s_next_generation;
1225
1226
1227 atomic_t nr_pages[NR_COUNT_TYPE];
1228
1229 struct percpu_counter alloc_valid_block_count;
1230
1231
1232 atomic_t wb_sync_req[META];
1233
1234
1235 struct percpu_counter total_valid_inode_count;
1236
1237 struct f2fs_mount_info mount_opt;
1238
1239
1240 struct mutex gc_mutex;
1241 struct f2fs_gc_kthread *gc_thread;
1242 unsigned int cur_victim_sec;
1243 unsigned int gc_mode;
1244
1245 unsigned long long skipped_atomic_files[2];
1246 unsigned long long skipped_gc_rwsem;
1247
1248
1249 u64 gc_pin_file_threshold;
1250
1251
1252 unsigned int max_victim_search;
1253
1254
1255
1256
1257
1258#ifdef CONFIG_F2FS_STAT_FS
1259 struct f2fs_stat_info *stat_info;
1260 unsigned int segment_count[2];
1261 unsigned int block_count[2];
1262 atomic_t inplace_count;
1263 atomic64_t total_hit_ext;
1264 atomic64_t read_hit_rbtree;
1265 atomic64_t read_hit_largest;
1266 atomic64_t read_hit_cached;
1267 atomic_t inline_xattr;
1268 atomic_t inline_inode;
1269 atomic_t inline_dir;
1270 atomic_t aw_cnt;
1271 atomic_t vw_cnt;
1272 atomic_t max_aw_cnt;
1273 atomic_t max_vw_cnt;
1274 int bg_gc;
1275 unsigned int ndirty_inode[NR_INODE_TYPE];
1276#endif
1277 spinlock_t stat_lock;
1278
1279
1280 spinlock_t iostat_lock;
1281 unsigned long long write_iostat[NR_IO_TYPE];
1282 bool iostat_enable;
1283
1284
1285 struct kobject s_kobj;
1286 struct completion s_kobj_unregister;
1287
1288
1289 struct list_head s_list;
1290 int s_ndevs;
1291 struct f2fs_dev_info *devs;
1292 unsigned int dirty_device;
1293 spinlock_t dev_lock;
1294 struct mutex umount_mutex;
1295 unsigned int shrinker_run_no;
1296
1297
1298 u64 sectors_written_start;
1299 u64 kbytes_written;
1300
1301
1302 struct crypto_shash *s_chksum_driver;
1303
1304
1305 __u32 s_chksum_seed;
1306};
1307
1308#ifdef CONFIG_F2FS_FAULT_INJECTION
1309#define f2fs_show_injection_info(type) \
1310 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1311 KERN_INFO, f2fs_fault_name[type], \
1312 __func__, __builtin_return_address(0))
1313static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1314{
1315 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1316
1317 if (!ffi->inject_rate)
1318 return false;
1319
1320 if (!IS_FAULT_SET(ffi, type))
1321 return false;
1322
1323 atomic_inc(&ffi->inject_ops);
1324 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1325 atomic_set(&ffi->inject_ops, 0);
1326 return true;
1327 }
1328 return false;
1329}
1330#else
1331#define f2fs_show_injection_info(type) do { } while (0)
1332static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1333{
1334 return false;
1335}
1336#endif
1337
1338
1339
1340
1341#define BD_PART_WRITTEN(s) \
1342(((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \
1343 (s)->sectors_written_start) >> 1)
1344
1345static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1346{
1347 sbi->last_time[type] = jiffies;
1348}
1349
1350static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1351{
1352 unsigned long interval = sbi->interval_time[type] * HZ;
1353
1354 return time_after(jiffies, sbi->last_time[type] + interval);
1355}
1356
1357static inline bool is_idle(struct f2fs_sb_info *sbi)
1358{
1359 struct block_device *bdev = sbi->sb->s_bdev;
1360 struct request_queue *q = bdev_get_queue(bdev);
1361 struct request_list *rl = &q->root_rl;
1362
1363 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1364 return false;
1365
1366 return f2fs_time_over(sbi, REQ_TIME);
1367}
1368
1369
1370
1371
1372static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1373 const void *address, unsigned int length)
1374{
1375 struct {
1376 struct shash_desc shash;
1377 char ctx[4];
1378 } desc;
1379 int err;
1380
1381 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1382
1383 desc.shash.tfm = sbi->s_chksum_driver;
1384 desc.shash.flags = 0;
1385 *(u32 *)desc.ctx = crc;
1386
1387 err = crypto_shash_update(&desc.shash, address, length);
1388 BUG_ON(err);
1389
1390 return *(u32 *)desc.ctx;
1391}
1392
1393static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1394 unsigned int length)
1395{
1396 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1397}
1398
1399static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1400 void *buf, size_t buf_size)
1401{
1402 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1403}
1404
1405static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1406 const void *address, unsigned int length)
1407{
1408 return __f2fs_crc32(sbi, crc, address, length);
1409}
1410
1411static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1412{
1413 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1414}
1415
1416static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1417{
1418 return sb->s_fs_info;
1419}
1420
1421static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1422{
1423 return F2FS_SB(inode->i_sb);
1424}
1425
1426static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1427{
1428 return F2FS_I_SB(mapping->host);
1429}
1430
1431static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1432{
1433 return F2FS_M_SB(page->mapping);
1434}
1435
1436static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1437{
1438 return (struct f2fs_super_block *)(sbi->raw_super);
1439}
1440
1441static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1442{
1443 return (struct f2fs_checkpoint *)(sbi->ckpt);
1444}
1445
1446static inline struct f2fs_node *F2FS_NODE(struct page *page)
1447{
1448 return (struct f2fs_node *)page_address(page);
1449}
1450
1451static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1452{
1453 return &((struct f2fs_node *)page_address(page))->i;
1454}
1455
1456static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1457{
1458 return (struct f2fs_nm_info *)(sbi->nm_info);
1459}
1460
1461static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1462{
1463 return (struct f2fs_sm_info *)(sbi->sm_info);
1464}
1465
1466static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1467{
1468 return (struct sit_info *)(SM_I(sbi)->sit_info);
1469}
1470
1471static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1472{
1473 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1474}
1475
1476static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1477{
1478 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1479}
1480
1481static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1482{
1483 return sbi->meta_inode->i_mapping;
1484}
1485
1486static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1487{
1488 return sbi->node_inode->i_mapping;
1489}
1490
1491static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1492{
1493 return test_bit(type, &sbi->s_flag);
1494}
1495
1496static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1497{
1498 set_bit(type, &sbi->s_flag);
1499}
1500
1501static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1502{
1503 clear_bit(type, &sbi->s_flag);
1504}
1505
1506static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1507{
1508 return le64_to_cpu(cp->checkpoint_ver);
1509}
1510
1511static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1512{
1513 if (type < F2FS_MAX_QUOTAS)
1514 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1515 return 0;
1516}
1517
1518static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1519{
1520 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1521 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1522}
1523
1524static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1525{
1526 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1527
1528 return ckpt_flags & f;
1529}
1530
1531static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1532{
1533 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1534}
1535
1536static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1537{
1538 unsigned int ckpt_flags;
1539
1540 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1541 ckpt_flags |= f;
1542 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1543}
1544
1545static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1546{
1547 unsigned long flags;
1548
1549 spin_lock_irqsave(&sbi->cp_lock, flags);
1550 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1551 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1552}
1553
1554static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1555{
1556 unsigned int ckpt_flags;
1557
1558 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1559 ckpt_flags &= (~f);
1560 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1561}
1562
1563static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1564{
1565 unsigned long flags;
1566
1567 spin_lock_irqsave(&sbi->cp_lock, flags);
1568 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1569 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1570}
1571
1572static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1573{
1574 unsigned long flags;
1575
1576 set_sbi_flag(sbi, SBI_NEED_FSCK);
1577
1578 if (lock)
1579 spin_lock_irqsave(&sbi->cp_lock, flags);
1580 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1581 kfree(NM_I(sbi)->nat_bits);
1582 NM_I(sbi)->nat_bits = NULL;
1583 if (lock)
1584 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1585}
1586
1587static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1588 struct cp_control *cpc)
1589{
1590 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1591
1592 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1593}
1594
1595static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1596{
1597 down_read(&sbi->cp_rwsem);
1598}
1599
1600static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1601{
1602 return down_read_trylock(&sbi->cp_rwsem);
1603}
1604
1605static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1606{
1607 up_read(&sbi->cp_rwsem);
1608}
1609
1610static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1611{
1612 down_write(&sbi->cp_rwsem);
1613}
1614
1615static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1616{
1617 up_write(&sbi->cp_rwsem);
1618}
1619
1620static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1621{
1622 int reason = CP_SYNC;
1623
1624 if (test_opt(sbi, FASTBOOT))
1625 reason = CP_FASTBOOT;
1626 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1627 reason = CP_UMOUNT;
1628 return reason;
1629}
1630
1631static inline bool __remain_node_summaries(int reason)
1632{
1633 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1634}
1635
1636static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1637{
1638 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1639 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1640}
1641
1642
1643
1644
1645static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1646{
1647 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1648
1649 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1650}
1651
1652static inline bool f2fs_has_xattr_block(unsigned int ofs)
1653{
1654 return ofs == XATTR_NODE_OFFSET;
1655}
1656
1657static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1658 struct inode *inode, bool cap)
1659{
1660 if (!inode)
1661 return true;
1662 if (!test_opt(sbi, RESERVE_ROOT))
1663 return false;
1664 if (IS_NOQUOTA(inode))
1665 return true;
1666 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1667 return true;
1668 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1669 in_group_p(F2FS_OPTION(sbi).s_resgid))
1670 return true;
1671 if (cap && capable(CAP_SYS_RESOURCE))
1672 return true;
1673 return false;
1674}
1675
1676static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1677static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1678 struct inode *inode, blkcnt_t *count)
1679{
1680 blkcnt_t diff = 0, release = 0;
1681 block_t avail_user_block_count;
1682 int ret;
1683
1684 ret = dquot_reserve_block(inode, *count);
1685 if (ret)
1686 return ret;
1687
1688 if (time_to_inject(sbi, FAULT_BLOCK)) {
1689 f2fs_show_injection_info(FAULT_BLOCK);
1690 release = *count;
1691 goto enospc;
1692 }
1693
1694
1695
1696
1697
1698 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1699
1700 spin_lock(&sbi->stat_lock);
1701 sbi->total_valid_block_count += (block_t)(*count);
1702 avail_user_block_count = sbi->user_block_count -
1703 sbi->current_reserved_blocks;
1704
1705 if (!__allow_reserved_blocks(sbi, inode, true))
1706 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1707
1708 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1709 diff = sbi->total_valid_block_count - avail_user_block_count;
1710 if (diff > *count)
1711 diff = *count;
1712 *count -= diff;
1713 release = diff;
1714 sbi->total_valid_block_count -= diff;
1715 if (!*count) {
1716 spin_unlock(&sbi->stat_lock);
1717 goto enospc;
1718 }
1719 }
1720 spin_unlock(&sbi->stat_lock);
1721
1722 if (unlikely(release)) {
1723 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1724 dquot_release_reservation_block(inode, release);
1725 }
1726 f2fs_i_blocks_write(inode, *count, true, true);
1727 return 0;
1728
1729enospc:
1730 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
1731 dquot_release_reservation_block(inode, release);
1732 return -ENOSPC;
1733}
1734
1735static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1736 struct inode *inode,
1737 block_t count)
1738{
1739 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1740
1741 spin_lock(&sbi->stat_lock);
1742 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1743 f2fs_bug_on(sbi, inode->i_blocks < sectors);
1744 sbi->total_valid_block_count -= (block_t)count;
1745 if (sbi->reserved_blocks &&
1746 sbi->current_reserved_blocks < sbi->reserved_blocks)
1747 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1748 sbi->current_reserved_blocks + count);
1749 spin_unlock(&sbi->stat_lock);
1750 f2fs_i_blocks_write(inode, count, false, true);
1751}
1752
1753static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1754{
1755 atomic_inc(&sbi->nr_pages[count_type]);
1756
1757 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1758 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
1759 return;
1760
1761 set_sbi_flag(sbi, SBI_IS_DIRTY);
1762}
1763
1764static inline void inode_inc_dirty_pages(struct inode *inode)
1765{
1766 atomic_inc(&F2FS_I(inode)->dirty_pages);
1767 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1768 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1769 if (IS_NOQUOTA(inode))
1770 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1771}
1772
1773static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1774{
1775 atomic_dec(&sbi->nr_pages[count_type]);
1776}
1777
1778static inline void inode_dec_dirty_pages(struct inode *inode)
1779{
1780 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1781 !S_ISLNK(inode->i_mode))
1782 return;
1783
1784 atomic_dec(&F2FS_I(inode)->dirty_pages);
1785 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1786 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1787 if (IS_NOQUOTA(inode))
1788 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1789}
1790
1791static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1792{
1793 return atomic_read(&sbi->nr_pages[count_type]);
1794}
1795
1796static inline int get_dirty_pages(struct inode *inode)
1797{
1798 return atomic_read(&F2FS_I(inode)->dirty_pages);
1799}
1800
1801static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1802{
1803 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1804 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1805 sbi->log_blocks_per_seg;
1806
1807 return segs / sbi->segs_per_sec;
1808}
1809
1810static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1811{
1812 return sbi->total_valid_block_count;
1813}
1814
1815static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1816{
1817 return sbi->discard_blks;
1818}
1819
1820static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1821{
1822 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1823
1824
1825 if (flag == NAT_BITMAP)
1826 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1827 else if (flag == SIT_BITMAP)
1828 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1829
1830 return 0;
1831}
1832
1833static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1834{
1835 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1836}
1837
1838static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1839{
1840 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1841 int offset;
1842
1843 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
1844 offset = (flag == SIT_BITMAP) ?
1845 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
1846 return &ckpt->sit_nat_version_bitmap + offset;
1847 }
1848
1849 if (__cp_payload(sbi) > 0) {
1850 if (flag == NAT_BITMAP)
1851 return &ckpt->sit_nat_version_bitmap;
1852 else
1853 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1854 } else {
1855 offset = (flag == NAT_BITMAP) ?
1856 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1857 return &ckpt->sit_nat_version_bitmap + offset;
1858 }
1859}
1860
1861static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1862{
1863 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1864
1865 if (sbi->cur_cp_pack == 2)
1866 start_addr += sbi->blocks_per_seg;
1867 return start_addr;
1868}
1869
1870static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1871{
1872 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1873
1874 if (sbi->cur_cp_pack == 1)
1875 start_addr += sbi->blocks_per_seg;
1876 return start_addr;
1877}
1878
1879static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1880{
1881 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1882}
1883
1884static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1885{
1886 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1887}
1888
1889static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
1890 struct inode *inode, bool is_inode)
1891{
1892 block_t valid_block_count;
1893 unsigned int valid_node_count;
1894 bool quota = inode && !is_inode;
1895
1896 if (quota) {
1897 int ret = dquot_reserve_block(inode, 1);
1898 if (ret)
1899 return ret;
1900 }
1901
1902 if (time_to_inject(sbi, FAULT_BLOCK)) {
1903 f2fs_show_injection_info(FAULT_BLOCK);
1904 goto enospc;
1905 }
1906
1907 spin_lock(&sbi->stat_lock);
1908
1909 valid_block_count = sbi->total_valid_block_count +
1910 sbi->current_reserved_blocks + 1;
1911
1912 if (!__allow_reserved_blocks(sbi, inode, false))
1913 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
1914
1915 if (unlikely(valid_block_count > sbi->user_block_count)) {
1916 spin_unlock(&sbi->stat_lock);
1917 goto enospc;
1918 }
1919
1920 valid_node_count = sbi->total_valid_node_count + 1;
1921 if (unlikely(valid_node_count > sbi->total_node_count)) {
1922 spin_unlock(&sbi->stat_lock);
1923 goto enospc;
1924 }
1925
1926 sbi->total_valid_node_count++;
1927 sbi->total_valid_block_count++;
1928 spin_unlock(&sbi->stat_lock);
1929
1930 if (inode) {
1931 if (is_inode)
1932 f2fs_mark_inode_dirty_sync(inode, true);
1933 else
1934 f2fs_i_blocks_write(inode, 1, true, true);
1935 }
1936
1937 percpu_counter_inc(&sbi->alloc_valid_block_count);
1938 return 0;
1939
1940enospc:
1941 if (quota)
1942 dquot_release_reservation_block(inode, 1);
1943 return -ENOSPC;
1944}
1945
1946static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1947 struct inode *inode, bool is_inode)
1948{
1949 spin_lock(&sbi->stat_lock);
1950
1951 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1952 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1953 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
1954
1955 sbi->total_valid_node_count--;
1956 sbi->total_valid_block_count--;
1957 if (sbi->reserved_blocks &&
1958 sbi->current_reserved_blocks < sbi->reserved_blocks)
1959 sbi->current_reserved_blocks++;
1960
1961 spin_unlock(&sbi->stat_lock);
1962
1963 if (!is_inode)
1964 f2fs_i_blocks_write(inode, 1, false, true);
1965}
1966
1967static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1968{
1969 return sbi->total_valid_node_count;
1970}
1971
1972static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1973{
1974 percpu_counter_inc(&sbi->total_valid_inode_count);
1975}
1976
1977static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
1978{
1979 percpu_counter_dec(&sbi->total_valid_inode_count);
1980}
1981
1982static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
1983{
1984 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
1985}
1986
1987static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1988 pgoff_t index, bool for_write)
1989{
1990 struct page *page;
1991
1992 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
1993 if (!for_write)
1994 page = find_get_page_flags(mapping, index,
1995 FGP_LOCK | FGP_ACCESSED);
1996 else
1997 page = find_lock_page(mapping, index);
1998 if (page)
1999 return page;
2000
2001 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2002 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
2003 return NULL;
2004 }
2005 }
2006
2007 if (!for_write)
2008 return grab_cache_page(mapping, index);
2009 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2010}
2011
2012static inline struct page *f2fs_pagecache_get_page(
2013 struct address_space *mapping, pgoff_t index,
2014 int fgp_flags, gfp_t gfp_mask)
2015{
2016 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2017 f2fs_show_injection_info(FAULT_PAGE_GET);
2018 return NULL;
2019 }
2020
2021 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2022}
2023
2024static inline void f2fs_copy_page(struct page *src, struct page *dst)
2025{
2026 char *src_kaddr = kmap(src);
2027 char *dst_kaddr = kmap(dst);
2028
2029 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2030 kunmap(dst);
2031 kunmap(src);
2032}
2033
2034static inline void f2fs_put_page(struct page *page, int unlock)
2035{
2036 if (!page)
2037 return;
2038
2039 if (unlock) {
2040 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2041 unlock_page(page);
2042 }
2043 put_page(page);
2044}
2045
2046static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2047{
2048 if (dn->node_page)
2049 f2fs_put_page(dn->node_page, 1);
2050 if (dn->inode_page && dn->node_page != dn->inode_page)
2051 f2fs_put_page(dn->inode_page, 0);
2052 dn->node_page = NULL;
2053 dn->inode_page = NULL;
2054}
2055
2056static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2057 size_t size)
2058{
2059 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2060}
2061
2062static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2063 gfp_t flags)
2064{
2065 void *entry;
2066
2067 entry = kmem_cache_alloc(cachep, flags);
2068 if (!entry)
2069 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2070 return entry;
2071}
2072
2073static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
2074 int npages, bool no_fail)
2075{
2076 struct bio *bio;
2077
2078 if (no_fail) {
2079
2080 bio = bio_alloc(GFP_NOIO, npages);
2081 if (!bio)
2082 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
2083 return bio;
2084 }
2085 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
2086 f2fs_show_injection_info(FAULT_ALLOC_BIO);
2087 return NULL;
2088 }
2089
2090 return bio_alloc(GFP_KERNEL, npages);
2091}
2092
2093static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2094 unsigned long index, void *item)
2095{
2096 while (radix_tree_insert(root, index, item))
2097 cond_resched();
2098}
2099
2100#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2101
2102static inline bool IS_INODE(struct page *page)
2103{
2104 struct f2fs_node *p = F2FS_NODE(page);
2105
2106 return RAW_IS_INODE(p);
2107}
2108
2109static inline int offset_in_addr(struct f2fs_inode *i)
2110{
2111 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2112 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2113}
2114
2115static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2116{
2117 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2118}
2119
2120static inline int f2fs_has_extra_attr(struct inode *inode);
2121static inline block_t datablock_addr(struct inode *inode,
2122 struct page *node_page, unsigned int offset)
2123{
2124 struct f2fs_node *raw_node;
2125 __le32 *addr_array;
2126 int base = 0;
2127 bool is_inode = IS_INODE(node_page);
2128
2129 raw_node = F2FS_NODE(node_page);
2130
2131
2132 if (is_inode) {
2133 if (!inode)
2134 base = offset_in_addr(&raw_node->i);
2135 else if (f2fs_has_extra_attr(inode))
2136 base = get_extra_isize(inode);
2137 }
2138
2139 addr_array = blkaddr_in_node(raw_node);
2140 return le32_to_cpu(addr_array[base + offset]);
2141}
2142
2143static inline int f2fs_test_bit(unsigned int nr, char *addr)
2144{
2145 int mask;
2146
2147 addr += (nr >> 3);
2148 mask = 1 << (7 - (nr & 0x07));
2149 return mask & *addr;
2150}
2151
2152static inline void f2fs_set_bit(unsigned int nr, char *addr)
2153{
2154 int mask;
2155
2156 addr += (nr >> 3);
2157 mask = 1 << (7 - (nr & 0x07));
2158 *addr |= mask;
2159}
2160
2161static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2162{
2163 int mask;
2164
2165 addr += (nr >> 3);
2166 mask = 1 << (7 - (nr & 0x07));
2167 *addr &= ~mask;
2168}
2169
2170static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2171{
2172 int mask;
2173 int ret;
2174
2175 addr += (nr >> 3);
2176 mask = 1 << (7 - (nr & 0x07));
2177 ret = mask & *addr;
2178 *addr |= mask;
2179 return ret;
2180}
2181
2182static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2183{
2184 int mask;
2185 int ret;
2186
2187 addr += (nr >> 3);
2188 mask = 1 << (7 - (nr & 0x07));
2189 ret = mask & *addr;
2190 *addr &= ~mask;
2191 return ret;
2192}
2193
2194static inline void f2fs_change_bit(unsigned int nr, char *addr)
2195{
2196 int mask;
2197
2198 addr += (nr >> 3);
2199 mask = 1 << (7 - (nr & 0x07));
2200 *addr ^= mask;
2201}
2202
2203
2204
2205
2206#define F2FS_SECRM_FL 0x00000001
2207#define F2FS_UNRM_FL 0x00000002
2208#define F2FS_COMPR_FL 0x00000004
2209#define F2FS_SYNC_FL 0x00000008
2210#define F2FS_IMMUTABLE_FL 0x00000010
2211#define F2FS_APPEND_FL 0x00000020
2212#define F2FS_NODUMP_FL 0x00000040
2213#define F2FS_NOATIME_FL 0x00000080
2214
2215#define F2FS_DIRTY_FL 0x00000100
2216#define F2FS_COMPRBLK_FL 0x00000200
2217#define F2FS_NOCOMPR_FL 0x00000400
2218#define F2FS_ENCRYPT_FL 0x00000800
2219
2220#define F2FS_INDEX_FL 0x00001000
2221#define F2FS_IMAGIC_FL 0x00002000
2222#define F2FS_JOURNAL_DATA_FL 0x00004000
2223#define F2FS_NOTAIL_FL 0x00008000
2224#define F2FS_DIRSYNC_FL 0x00010000
2225#define F2FS_TOPDIR_FL 0x00020000
2226#define F2FS_HUGE_FILE_FL 0x00040000
2227#define F2FS_EXTENTS_FL 0x00080000
2228#define F2FS_EA_INODE_FL 0x00200000
2229#define F2FS_EOFBLOCKS_FL 0x00400000
2230#define F2FS_INLINE_DATA_FL 0x10000000
2231#define F2FS_PROJINHERIT_FL 0x20000000
2232#define F2FS_RESERVED_FL 0x80000000
2233
2234#define F2FS_FL_USER_VISIBLE 0x304BDFFF
2235#define F2FS_FL_USER_MODIFIABLE 0x204BC0FF
2236
2237
2238#define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \
2239 F2FS_IMMUTABLE_FL | \
2240 F2FS_APPEND_FL | \
2241 F2FS_NODUMP_FL | \
2242 F2FS_NOATIME_FL | \
2243 F2FS_PROJINHERIT_FL)
2244
2245
2246#define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\
2247 F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\
2248 F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\
2249 F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\
2250 F2FS_PROJINHERIT_FL)
2251
2252
2253#define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL))
2254
2255
2256#define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2257
2258static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2259{
2260 if (S_ISDIR(mode))
2261 return flags;
2262 else if (S_ISREG(mode))
2263 return flags & F2FS_REG_FLMASK;
2264 else
2265 return flags & F2FS_OTHER_FLMASK;
2266}
2267
2268
2269enum {
2270 FI_NEW_INODE,
2271 FI_DIRTY_INODE,
2272 FI_AUTO_RECOVER,
2273 FI_DIRTY_DIR,
2274 FI_INC_LINK,
2275 FI_ACL_MODE,
2276 FI_NO_ALLOC,
2277 FI_FREE_NID,
2278 FI_NO_EXTENT,
2279 FI_INLINE_XATTR,
2280 FI_INLINE_DATA,
2281 FI_INLINE_DENTRY,
2282 FI_APPEND_WRITE,
2283 FI_UPDATE_WRITE,
2284 FI_NEED_IPU,
2285 FI_ATOMIC_FILE,
2286 FI_ATOMIC_COMMIT,
2287 FI_VOLATILE_FILE,
2288 FI_FIRST_BLOCK_WRITTEN,
2289 FI_DROP_CACHE,
2290 FI_DATA_EXIST,
2291 FI_INLINE_DOTS,
2292 FI_DO_DEFRAG,
2293 FI_DIRTY_FILE,
2294 FI_NO_PREALLOC,
2295 FI_HOT_DATA,
2296 FI_EXTRA_ATTR,
2297 FI_PROJ_INHERIT,
2298 FI_PIN_FILE,
2299 FI_ATOMIC_REVOKE_REQUEST,
2300};
2301
2302static inline void __mark_inode_dirty_flag(struct inode *inode,
2303 int flag, bool set)
2304{
2305 switch (flag) {
2306 case FI_INLINE_XATTR:
2307 case FI_INLINE_DATA:
2308 case FI_INLINE_DENTRY:
2309 case FI_NEW_INODE:
2310 if (set)
2311 return;
2312 case FI_DATA_EXIST:
2313 case FI_INLINE_DOTS:
2314 case FI_PIN_FILE:
2315 f2fs_mark_inode_dirty_sync(inode, true);
2316 }
2317}
2318
2319static inline void set_inode_flag(struct inode *inode, int flag)
2320{
2321 if (!test_bit(flag, &F2FS_I(inode)->flags))
2322 set_bit(flag, &F2FS_I(inode)->flags);
2323 __mark_inode_dirty_flag(inode, flag, true);
2324}
2325
2326static inline int is_inode_flag_set(struct inode *inode, int flag)
2327{
2328 return test_bit(flag, &F2FS_I(inode)->flags);
2329}
2330
2331static inline void clear_inode_flag(struct inode *inode, int flag)
2332{
2333 if (test_bit(flag, &F2FS_I(inode)->flags))
2334 clear_bit(flag, &F2FS_I(inode)->flags);
2335 __mark_inode_dirty_flag(inode, flag, false);
2336}
2337
2338static inline void set_acl_inode(struct inode *inode, umode_t mode)
2339{
2340 F2FS_I(inode)->i_acl_mode = mode;
2341 set_inode_flag(inode, FI_ACL_MODE);
2342 f2fs_mark_inode_dirty_sync(inode, false);
2343}
2344
2345static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2346{
2347 if (inc)
2348 inc_nlink(inode);
2349 else
2350 drop_nlink(inode);
2351 f2fs_mark_inode_dirty_sync(inode, true);
2352}
2353
2354static inline void f2fs_i_blocks_write(struct inode *inode,
2355 block_t diff, bool add, bool claim)
2356{
2357 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2358 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2359
2360
2361 if (add) {
2362 if (claim)
2363 dquot_claim_block(inode, diff);
2364 else
2365 dquot_alloc_block_nofail(inode, diff);
2366 } else {
2367 dquot_free_block(inode, diff);
2368 }
2369
2370 f2fs_mark_inode_dirty_sync(inode, true);
2371 if (clean || recover)
2372 set_inode_flag(inode, FI_AUTO_RECOVER);
2373}
2374
2375static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2376{
2377 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2378 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2379
2380 if (i_size_read(inode) == i_size)
2381 return;
2382
2383 i_size_write(inode, i_size);
2384 f2fs_mark_inode_dirty_sync(inode, true);
2385 if (clean || recover)
2386 set_inode_flag(inode, FI_AUTO_RECOVER);
2387}
2388
2389static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2390{
2391 F2FS_I(inode)->i_current_depth = depth;
2392 f2fs_mark_inode_dirty_sync(inode, true);
2393}
2394
2395static inline void f2fs_i_gc_failures_write(struct inode *inode,
2396 unsigned int count)
2397{
2398 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2399 f2fs_mark_inode_dirty_sync(inode, true);
2400}
2401
2402static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2403{
2404 F2FS_I(inode)->i_xattr_nid = xnid;
2405 f2fs_mark_inode_dirty_sync(inode, true);
2406}
2407
2408static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2409{
2410 F2FS_I(inode)->i_pino = pino;
2411 f2fs_mark_inode_dirty_sync(inode, true);
2412}
2413
2414static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2415{
2416 struct f2fs_inode_info *fi = F2FS_I(inode);
2417
2418 if (ri->i_inline & F2FS_INLINE_XATTR)
2419 set_bit(FI_INLINE_XATTR, &fi->flags);
2420 if (ri->i_inline & F2FS_INLINE_DATA)
2421 set_bit(FI_INLINE_DATA, &fi->flags);
2422 if (ri->i_inline & F2FS_INLINE_DENTRY)
2423 set_bit(FI_INLINE_DENTRY, &fi->flags);
2424 if (ri->i_inline & F2FS_DATA_EXIST)
2425 set_bit(FI_DATA_EXIST, &fi->flags);
2426 if (ri->i_inline & F2FS_INLINE_DOTS)
2427 set_bit(FI_INLINE_DOTS, &fi->flags);
2428 if (ri->i_inline & F2FS_EXTRA_ATTR)
2429 set_bit(FI_EXTRA_ATTR, &fi->flags);
2430 if (ri->i_inline & F2FS_PIN_FILE)
2431 set_bit(FI_PIN_FILE, &fi->flags);
2432}
2433
2434static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2435{
2436 ri->i_inline = 0;
2437
2438 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2439 ri->i_inline |= F2FS_INLINE_XATTR;
2440 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2441 ri->i_inline |= F2FS_INLINE_DATA;
2442 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2443 ri->i_inline |= F2FS_INLINE_DENTRY;
2444 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2445 ri->i_inline |= F2FS_DATA_EXIST;
2446 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2447 ri->i_inline |= F2FS_INLINE_DOTS;
2448 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2449 ri->i_inline |= F2FS_EXTRA_ATTR;
2450 if (is_inode_flag_set(inode, FI_PIN_FILE))
2451 ri->i_inline |= F2FS_PIN_FILE;
2452}
2453
2454static inline int f2fs_has_extra_attr(struct inode *inode)
2455{
2456 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2457}
2458
2459static inline int f2fs_has_inline_xattr(struct inode *inode)
2460{
2461 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2462}
2463
2464static inline unsigned int addrs_per_inode(struct inode *inode)
2465{
2466 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode);
2467}
2468
2469static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2470{
2471 struct f2fs_inode *ri = F2FS_INODE(page);
2472
2473 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2474 get_inline_xattr_addrs(inode)]);
2475}
2476
2477static inline int inline_xattr_size(struct inode *inode)
2478{
2479 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2480}
2481
2482static inline int f2fs_has_inline_data(struct inode *inode)
2483{
2484 return is_inode_flag_set(inode, FI_INLINE_DATA);
2485}
2486
2487static inline int f2fs_exist_data(struct inode *inode)
2488{
2489 return is_inode_flag_set(inode, FI_DATA_EXIST);
2490}
2491
2492static inline int f2fs_has_inline_dots(struct inode *inode)
2493{
2494 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2495}
2496
2497static inline bool f2fs_is_pinned_file(struct inode *inode)
2498{
2499 return is_inode_flag_set(inode, FI_PIN_FILE);
2500}
2501
2502static inline bool f2fs_is_atomic_file(struct inode *inode)
2503{
2504 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2505}
2506
2507static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2508{
2509 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2510}
2511
2512static inline bool f2fs_is_volatile_file(struct inode *inode)
2513{
2514 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2515}
2516
2517static inline bool f2fs_is_first_block_written(struct inode *inode)
2518{
2519 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2520}
2521
2522static inline bool f2fs_is_drop_cache(struct inode *inode)
2523{
2524 return is_inode_flag_set(inode, FI_DROP_CACHE);
2525}
2526
2527static inline void *inline_data_addr(struct inode *inode, struct page *page)
2528{
2529 struct f2fs_inode *ri = F2FS_INODE(page);
2530 int extra_size = get_extra_isize(inode);
2531
2532 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2533}
2534
2535static inline int f2fs_has_inline_dentry(struct inode *inode)
2536{
2537 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2538}
2539
2540static inline int is_file(struct inode *inode, int type)
2541{
2542 return F2FS_I(inode)->i_advise & type;
2543}
2544
2545static inline void set_file(struct inode *inode, int type)
2546{
2547 F2FS_I(inode)->i_advise |= type;
2548 f2fs_mark_inode_dirty_sync(inode, true);
2549}
2550
2551static inline void clear_file(struct inode *inode, int type)
2552{
2553 F2FS_I(inode)->i_advise &= ~type;
2554 f2fs_mark_inode_dirty_sync(inode, true);
2555}
2556
2557static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2558{
2559 bool ret;
2560
2561 if (dsync) {
2562 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2563
2564 spin_lock(&sbi->inode_lock[DIRTY_META]);
2565 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2566 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2567 return ret;
2568 }
2569 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2570 file_keep_isize(inode) ||
2571 i_size_read(inode) & ~PAGE_MASK)
2572 return false;
2573
2574 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2575 return false;
2576 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2577 return false;
2578 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2579 return false;
2580 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
2581 &F2FS_I(inode)->i_crtime))
2582 return false;
2583
2584 down_read(&F2FS_I(inode)->i_sem);
2585 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2586 up_read(&F2FS_I(inode)->i_sem);
2587
2588 return ret;
2589}
2590
2591static inline bool f2fs_readonly(struct super_block *sb)
2592{
2593 return sb_rdonly(sb);
2594}
2595
2596static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2597{
2598 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2599}
2600
2601static inline bool is_dot_dotdot(const struct qstr *str)
2602{
2603 if (str->len == 1 && str->name[0] == '.')
2604 return true;
2605
2606 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2607 return true;
2608
2609 return false;
2610}
2611
2612static inline bool f2fs_may_extent_tree(struct inode *inode)
2613{
2614 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
2615 is_inode_flag_set(inode, FI_NO_EXTENT))
2616 return false;
2617
2618 return S_ISREG(inode->i_mode);
2619}
2620
2621static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2622 size_t size, gfp_t flags)
2623{
2624 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2625 f2fs_show_injection_info(FAULT_KMALLOC);
2626 return NULL;
2627 }
2628
2629 return kmalloc(size, flags);
2630}
2631
2632static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2633 size_t size, gfp_t flags)
2634{
2635 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2636}
2637
2638static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2639 size_t size, gfp_t flags)
2640{
2641 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2642 f2fs_show_injection_info(FAULT_KVMALLOC);
2643 return NULL;
2644 }
2645
2646 return kvmalloc(size, flags);
2647}
2648
2649static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2650 size_t size, gfp_t flags)
2651{
2652 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2653}
2654
2655static inline int get_extra_isize(struct inode *inode)
2656{
2657 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2658}
2659
2660static inline int get_inline_xattr_addrs(struct inode *inode)
2661{
2662 return F2FS_I(inode)->i_inline_xattr_size;
2663}
2664
2665#define f2fs_get_inode_mode(i) \
2666 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2667 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2668
2669#define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2670 (offsetof(struct f2fs_inode, i_extra_end) - \
2671 offsetof(struct f2fs_inode, i_extra_isize)) \
2672
2673#define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2674#define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2675 ((offsetof(typeof(*f2fs_inode), field) + \
2676 sizeof((f2fs_inode)->field)) \
2677 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2678
2679static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2680{
2681 int i;
2682
2683 spin_lock(&sbi->iostat_lock);
2684 for (i = 0; i < NR_IO_TYPE; i++)
2685 sbi->write_iostat[i] = 0;
2686 spin_unlock(&sbi->iostat_lock);
2687}
2688
2689static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2690 enum iostat_type type, unsigned long long io_bytes)
2691{
2692 if (!sbi->iostat_enable)
2693 return;
2694 spin_lock(&sbi->iostat_lock);
2695 sbi->write_iostat[type] += io_bytes;
2696
2697 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2698 sbi->write_iostat[APP_BUFFERED_IO] =
2699 sbi->write_iostat[APP_WRITE_IO] -
2700 sbi->write_iostat[APP_DIRECT_IO];
2701 spin_unlock(&sbi->iostat_lock);
2702}
2703
2704#define __is_meta_io(fio) (PAGE_TYPE_OF_BIO(fio->type) == META && \
2705 (!is_read_io(fio->op) || fio->is_meta))
2706
2707bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2708 block_t blkaddr, int type);
2709void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2710static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
2711 block_t blkaddr, int type)
2712{
2713 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
2714 f2fs_msg(sbi->sb, KERN_ERR,
2715 "invalid blkaddr: %u, type: %d, run fsck to fix.",
2716 blkaddr, type);
2717 f2fs_bug_on(sbi, 1);
2718 }
2719}
2720
2721static inline bool __is_valid_data_blkaddr(block_t blkaddr)
2722{
2723 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
2724 return false;
2725 return true;
2726}
2727
2728static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi,
2729 block_t blkaddr)
2730{
2731 if (!__is_valid_data_blkaddr(blkaddr))
2732 return false;
2733 verify_blkaddr(sbi, blkaddr, DATA_GENERIC);
2734 return true;
2735}
2736
2737
2738
2739
2740int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2741void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
2742int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
2743int f2fs_truncate(struct inode *inode);
2744int f2fs_getattr(const struct path *path, struct kstat *stat,
2745 u32 request_mask, unsigned int flags);
2746int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2747int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2748void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2749int f2fs_precache_extents(struct inode *inode);
2750long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2751long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2752int f2fs_pin_file_control(struct inode *inode, bool inc);
2753
2754
2755
2756
2757void f2fs_set_inode_flags(struct inode *inode);
2758bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2759void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2760struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2761struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2762int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2763void f2fs_update_inode(struct inode *inode, struct page *node_page);
2764void f2fs_update_inode_page(struct inode *inode);
2765int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2766void f2fs_evict_inode(struct inode *inode);
2767void f2fs_handle_failed_inode(struct inode *inode);
2768
2769
2770
2771
2772int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
2773 bool hot, bool set);
2774struct dentry *f2fs_get_parent(struct dentry *child);
2775
2776
2777
2778
2779unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
2780struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
2781 f2fs_hash_t namehash, int *max_slots,
2782 struct f2fs_dentry_ptr *d);
2783int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2784 unsigned int start_pos, struct fscrypt_str *fstr);
2785void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
2786 struct f2fs_dentry_ptr *d);
2787struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
2788 const struct qstr *new_name,
2789 const struct qstr *orig_name, struct page *dpage);
2790void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
2791 unsigned int current_depth);
2792int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
2793void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2794struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2795 struct fscrypt_name *fname, struct page **res_page);
2796struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2797 const struct qstr *child, struct page **res_page);
2798struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2799ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2800 struct page **page);
2801void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2802 struct page *page, struct inode *inode);
2803void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2804 const struct qstr *name, f2fs_hash_t name_hash,
2805 unsigned int bit_pos);
2806int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2807 const struct qstr *orig_name,
2808 struct inode *inode, nid_t ino, umode_t mode);
2809int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
2810 struct inode *inode, nid_t ino, umode_t mode);
2811int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
2812 struct inode *inode, nid_t ino, umode_t mode);
2813void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2814 struct inode *dir, struct inode *inode);
2815int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2816bool f2fs_empty_dir(struct inode *dir);
2817
2818static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2819{
2820 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2821 inode, inode->i_ino, inode->i_mode);
2822}
2823
2824
2825
2826
2827int f2fs_inode_dirtied(struct inode *inode, bool sync);
2828void f2fs_inode_synced(struct inode *inode);
2829int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
2830void f2fs_quota_off_umount(struct super_block *sb);
2831int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2832int f2fs_sync_fs(struct super_block *sb, int sync);
2833extern __printf(3, 4)
2834void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2835int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
2836
2837
2838
2839
2840f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
2841 struct fscrypt_name *fname);
2842
2843
2844
2845
2846struct dnode_of_data;
2847struct node_info;
2848
2849int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
2850bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
2851bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
2852void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
2853void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
2854void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
2855int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2856bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2857bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2858int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
2859 struct node_info *ni);
2860pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2861int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2862int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
2863int f2fs_truncate_xattr_node(struct inode *inode);
2864int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
2865 unsigned int seq_id);
2866int f2fs_remove_inode_page(struct inode *inode);
2867struct page *f2fs_new_inode_page(struct inode *inode);
2868struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
2869void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2870struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2871struct page *f2fs_get_node_page_ra(struct page *parent, int start);
2872void f2fs_move_node_page(struct page *node_page, int gc_type);
2873int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2874 struct writeback_control *wbc, bool atomic,
2875 unsigned int *seq_id);
2876int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
2877 struct writeback_control *wbc,
2878 bool do_balance, enum iostat_type io_type);
2879int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
2880bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2881void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2882void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2883int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2884void f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
2885int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
2886int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2887int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
2888 unsigned int segno, struct f2fs_summary_block *sum);
2889void f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2890int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
2891void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
2892int __init f2fs_create_node_manager_caches(void);
2893void f2fs_destroy_node_manager_caches(void);
2894
2895
2896
2897
2898bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
2899void f2fs_register_inmem_page(struct inode *inode, struct page *page);
2900void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
2901void f2fs_drop_inmem_pages(struct inode *inode);
2902void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
2903int f2fs_commit_inmem_pages(struct inode *inode);
2904void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2905void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2906int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
2907int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
2908int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
2909void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2910void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2911bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2912void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
2913void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
2914bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
2915void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
2916 struct cp_control *cpc);
2917void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
2918int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2919void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
2920int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2921bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
2922 struct cp_control *cpc);
2923struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2924void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
2925 block_t blk_addr);
2926void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
2927 enum iostat_type io_type);
2928void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2929void f2fs_outplace_write_data(struct dnode_of_data *dn,
2930 struct f2fs_io_info *fio);
2931int f2fs_inplace_write_data(struct f2fs_io_info *fio);
2932void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2933 block_t old_blkaddr, block_t new_blkaddr,
2934 bool recover_curseg, bool recover_newaddr);
2935void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2936 block_t old_addr, block_t new_addr,
2937 unsigned char version, bool recover_curseg,
2938 bool recover_newaddr);
2939void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2940 block_t old_blkaddr, block_t *new_blkaddr,
2941 struct f2fs_summary *sum, int type,
2942 struct f2fs_io_info *fio, bool add_list);
2943void f2fs_wait_on_page_writeback(struct page *page,
2944 enum page_type type, bool ordered);
2945void f2fs_wait_on_block_writeback(struct f2fs_sb_info *sbi, block_t blkaddr);
2946void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2947void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2948int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2949 unsigned int val, int alloc);
2950void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2951int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
2952void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
2953int __init f2fs_create_segment_manager_caches(void);
2954void f2fs_destroy_segment_manager_caches(void);
2955int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
2956enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
2957 enum page_type type, enum temp_type temp);
2958
2959
2960
2961
2962void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2963struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2964struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2965struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index);
2966struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2967bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2968 block_t blkaddr, int type);
2969int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2970 int type, bool sync);
2971void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2972long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2973 long nr_to_write, enum iostat_type io_type);
2974void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2975void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2976void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2977bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2978void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
2979 unsigned int devidx, int type);
2980bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
2981 unsigned int devidx, int type);
2982int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2983int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
2984void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
2985void f2fs_add_orphan_inode(struct inode *inode);
2986void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2987int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
2988int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
2989void f2fs_update_dirty_page(struct inode *inode, struct page *page);
2990void f2fs_remove_dirty_inode(struct inode *inode);
2991int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2992void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
2993int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2994void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
2995int __init f2fs_create_checkpoint_caches(void);
2996void f2fs_destroy_checkpoint_caches(void);
2997
2998
2999
3000
3001int f2fs_init_post_read_processing(void);
3002void f2fs_destroy_post_read_processing(void);
3003void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3004void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3005 struct inode *inode, nid_t ino, pgoff_t idx,
3006 enum page_type type);
3007void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3008int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3009void f2fs_submit_page_write(struct f2fs_io_info *fio);
3010struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3011 block_t blk_addr, struct bio *bio);
3012int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3013void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3014void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3015int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3016int f2fs_reserve_new_block(struct dnode_of_data *dn);
3017int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3018int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3019int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3020struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3021 int op_flags, bool for_write);
3022struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3023struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3024 bool for_write);
3025struct page *f2fs_get_new_data_page(struct inode *inode,
3026 struct page *ipage, pgoff_t index, bool new_i_size);
3027int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3028int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3029 int create, int flag);
3030int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3031 u64 start, u64 len);
3032bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3033bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3034void f2fs_invalidate_page(struct page *page, unsigned int offset,
3035 unsigned int length);
3036int f2fs_release_page(struct page *page, gfp_t wait);
3037#ifdef CONFIG_MIGRATION
3038int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3039 struct page *page, enum migrate_mode mode);
3040#endif
3041bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3042void f2fs_clear_radix_tree_dirty_tag(struct page *page);
3043
3044
3045
3046
3047int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3048void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3049block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3050int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3051 unsigned int segno);
3052void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3053
3054
3055
3056
3057int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3058bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3059
3060
3061
3062
3063#ifdef CONFIG_F2FS_STAT_FS
3064struct f2fs_stat_info {
3065 struct list_head stat_list;
3066 struct f2fs_sb_info *sbi;
3067 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3068 int main_area_segs, main_area_sections, main_area_zones;
3069 unsigned long long hit_largest, hit_cached, hit_rbtree;
3070 unsigned long long hit_total, total_ext;
3071 int ext_tree, zombie_tree, ext_node;
3072 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3073 int ndirty_data, ndirty_qdata;
3074 int inmem_pages;
3075 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3076 int nats, dirty_nats, sits, dirty_sits;
3077 int free_nids, avail_nids, alloc_nids;
3078 int total_count, utilization;
3079 int bg_gc, nr_wb_cp_data, nr_wb_data;
3080 int nr_flushing, nr_flushed, flush_list_empty;
3081 int nr_discarding, nr_discarded;
3082 int nr_discard_cmd;
3083 unsigned int undiscard_blks;
3084 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3085 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3086 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3087 unsigned int bimodal, avg_vblocks;
3088 int util_free, util_valid, util_invalid;
3089 int rsvd_segs, overp_segs;
3090 int dirty_count, node_pages, meta_pages;
3091 int prefree_count, call_count, cp_count, bg_cp_count;
3092 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3093 int bg_node_segs, bg_data_segs;
3094 int tot_blks, data_blks, node_blks;
3095 int bg_data_blks, bg_node_blks;
3096 unsigned long long skipped_atomic_files[2];
3097 int curseg[NR_CURSEG_TYPE];
3098 int cursec[NR_CURSEG_TYPE];
3099 int curzone[NR_CURSEG_TYPE];
3100
3101 unsigned int segment_count[2];
3102 unsigned int block_count[2];
3103 unsigned int inplace_count;
3104 unsigned long long base_mem, cache_mem, page_mem;
3105};
3106
3107static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3108{
3109 return (struct f2fs_stat_info *)sbi->stat_info;
3110}
3111
3112#define stat_inc_cp_count(si) ((si)->cp_count++)
3113#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3114#define stat_inc_call_count(si) ((si)->call_count++)
3115#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
3116#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3117#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3118#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3119#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3120#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3121#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3122#define stat_inc_inline_xattr(inode) \
3123 do { \
3124 if (f2fs_has_inline_xattr(inode)) \
3125 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3126 } while (0)
3127#define stat_dec_inline_xattr(inode) \
3128 do { \
3129 if (f2fs_has_inline_xattr(inode)) \
3130 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3131 } while (0)
3132#define stat_inc_inline_inode(inode) \
3133 do { \
3134 if (f2fs_has_inline_data(inode)) \
3135 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3136 } while (0)
3137#define stat_dec_inline_inode(inode) \
3138 do { \
3139 if (f2fs_has_inline_data(inode)) \
3140 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3141 } while (0)
3142#define stat_inc_inline_dir(inode) \
3143 do { \
3144 if (f2fs_has_inline_dentry(inode)) \
3145 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3146 } while (0)
3147#define stat_dec_inline_dir(inode) \
3148 do { \
3149 if (f2fs_has_inline_dentry(inode)) \
3150 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3151 } while (0)
3152#define stat_inc_seg_type(sbi, curseg) \
3153 ((sbi)->segment_count[(curseg)->alloc_type]++)
3154#define stat_inc_block_count(sbi, curseg) \
3155 ((sbi)->block_count[(curseg)->alloc_type]++)
3156#define stat_inc_inplace_blocks(sbi) \
3157 (atomic_inc(&(sbi)->inplace_count))
3158#define stat_inc_atomic_write(inode) \
3159 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3160#define stat_dec_atomic_write(inode) \
3161 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3162#define stat_update_max_atomic_write(inode) \
3163 do { \
3164 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3165 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3166 if (cur > max) \
3167 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3168 } while (0)
3169#define stat_inc_volatile_write(inode) \
3170 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3171#define stat_dec_volatile_write(inode) \
3172 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3173#define stat_update_max_volatile_write(inode) \
3174 do { \
3175 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3176 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3177 if (cur > max) \
3178 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3179 } while (0)
3180#define stat_inc_seg_count(sbi, type, gc_type) \
3181 do { \
3182 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3183 si->tot_segs++; \
3184 if ((type) == SUM_TYPE_DATA) { \
3185 si->data_segs++; \
3186 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3187 } else { \
3188 si->node_segs++; \
3189 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3190 } \
3191 } while (0)
3192
3193#define stat_inc_tot_blk_count(si, blks) \
3194 ((si)->tot_blks += (blks))
3195
3196#define stat_inc_data_blk_count(sbi, blks, gc_type) \
3197 do { \
3198 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3199 stat_inc_tot_blk_count(si, blks); \
3200 si->data_blks += (blks); \
3201 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3202 } while (0)
3203
3204#define stat_inc_node_blk_count(sbi, blks, gc_type) \
3205 do { \
3206 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3207 stat_inc_tot_blk_count(si, blks); \
3208 si->node_blks += (blks); \
3209 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3210 } while (0)
3211
3212int f2fs_build_stats(struct f2fs_sb_info *sbi);
3213void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3214int __init f2fs_create_root_stats(void);
3215void f2fs_destroy_root_stats(void);
3216#else
3217#define stat_inc_cp_count(si) do { } while (0)
3218#define stat_inc_bg_cp_count(si) do { } while (0)
3219#define stat_inc_call_count(si) do { } while (0)
3220#define stat_inc_bggc_count(si) do { } while (0)
3221#define stat_inc_dirty_inode(sbi, type) do { } while (0)
3222#define stat_dec_dirty_inode(sbi, type) do { } while (0)
3223#define stat_inc_total_hit(sb) do { } while (0)
3224#define stat_inc_rbtree_node_hit(sb) do { } while (0)
3225#define stat_inc_largest_node_hit(sbi) do { } while (0)
3226#define stat_inc_cached_node_hit(sbi) do { } while (0)
3227#define stat_inc_inline_xattr(inode) do { } while (0)
3228#define stat_dec_inline_xattr(inode) do { } while (0)
3229#define stat_inc_inline_inode(inode) do { } while (0)
3230#define stat_dec_inline_inode(inode) do { } while (0)
3231#define stat_inc_inline_dir(inode) do { } while (0)
3232#define stat_dec_inline_dir(inode) do { } while (0)
3233#define stat_inc_atomic_write(inode) do { } while (0)
3234#define stat_dec_atomic_write(inode) do { } while (0)
3235#define stat_update_max_atomic_write(inode) do { } while (0)
3236#define stat_inc_volatile_write(inode) do { } while (0)
3237#define stat_dec_volatile_write(inode) do { } while (0)
3238#define stat_update_max_volatile_write(inode) do { } while (0)
3239#define stat_inc_seg_type(sbi, curseg) do { } while (0)
3240#define stat_inc_block_count(sbi, curseg) do { } while (0)
3241#define stat_inc_inplace_blocks(sbi) do { } while (0)
3242#define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3243#define stat_inc_tot_blk_count(si, blks) do { } while (0)
3244#define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3245#define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3246
3247static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3248static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3249static inline int __init f2fs_create_root_stats(void) { return 0; }
3250static inline void f2fs_destroy_root_stats(void) { }
3251#endif
3252
3253extern const struct file_operations f2fs_dir_operations;
3254extern const struct file_operations f2fs_file_operations;
3255extern const struct inode_operations f2fs_file_inode_operations;
3256extern const struct address_space_operations f2fs_dblock_aops;
3257extern const struct address_space_operations f2fs_node_aops;
3258extern const struct address_space_operations f2fs_meta_aops;
3259extern const struct inode_operations f2fs_dir_inode_operations;
3260extern const struct inode_operations f2fs_symlink_inode_operations;
3261extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3262extern const struct inode_operations f2fs_special_inode_operations;
3263extern struct kmem_cache *f2fs_inode_entry_slab;
3264
3265
3266
3267
3268bool f2fs_may_inline_data(struct inode *inode);
3269bool f2fs_may_inline_dentry(struct inode *inode);
3270void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3271void f2fs_truncate_inline_inode(struct inode *inode,
3272 struct page *ipage, u64 from);
3273int f2fs_read_inline_data(struct inode *inode, struct page *page);
3274int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3275int f2fs_convert_inline_inode(struct inode *inode);
3276int f2fs_write_inline_data(struct inode *inode, struct page *page);
3277bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3278struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3279 struct fscrypt_name *fname, struct page **res_page);
3280int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3281 struct page *ipage);
3282int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3283 const struct qstr *orig_name,
3284 struct inode *inode, nid_t ino, umode_t mode);
3285void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3286 struct page *page, struct inode *dir,
3287 struct inode *inode);
3288bool f2fs_empty_inline_dir(struct inode *dir);
3289int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3290 struct fscrypt_str *fstr);
3291int f2fs_inline_data_fiemap(struct inode *inode,
3292 struct fiemap_extent_info *fieinfo,
3293 __u64 start, __u64 len);
3294
3295
3296
3297
3298unsigned long f2fs_shrink_count(struct shrinker *shrink,
3299 struct shrink_control *sc);
3300unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3301 struct shrink_control *sc);
3302void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3303void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3304
3305
3306
3307
3308struct rb_entry *f2fs_lookup_rb_tree(struct rb_root *root,
3309 struct rb_entry *cached_re, unsigned int ofs);
3310struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3311 struct rb_root *root, struct rb_node **parent,
3312 unsigned int ofs);
3313struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
3314 struct rb_entry *cached_re, unsigned int ofs,
3315 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3316 struct rb_node ***insert_p, struct rb_node **insert_parent,
3317 bool force);
3318bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3319 struct rb_root *root);
3320unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3321bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3322void f2fs_drop_extent_tree(struct inode *inode);
3323unsigned int f2fs_destroy_extent_node(struct inode *inode);
3324void f2fs_destroy_extent_tree(struct inode *inode);
3325bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3326 struct extent_info *ei);
3327void f2fs_update_extent_cache(struct dnode_of_data *dn);
3328void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3329 pgoff_t fofs, block_t blkaddr, unsigned int len);
3330void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3331int __init f2fs_create_extent_cache(void);
3332void f2fs_destroy_extent_cache(void);
3333
3334
3335
3336
3337int __init f2fs_init_sysfs(void);
3338void f2fs_exit_sysfs(void);
3339int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3340void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3341
3342
3343
3344
3345static inline bool f2fs_encrypted_inode(struct inode *inode)
3346{
3347 return file_is_encrypt(inode);
3348}
3349
3350static inline bool f2fs_encrypted_file(struct inode *inode)
3351{
3352 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
3353}
3354
3355static inline void f2fs_set_encrypted_inode(struct inode *inode)
3356{
3357#ifdef CONFIG_F2FS_FS_ENCRYPTION
3358 file_set_encrypt(inode);
3359 inode->i_flags |= S_ENCRYPTED;
3360#endif
3361}
3362
3363
3364
3365
3366
3367static inline bool f2fs_post_read_required(struct inode *inode)
3368{
3369 return f2fs_encrypted_file(inode);
3370}
3371
3372#define F2FS_FEATURE_FUNCS(name, flagname) \
3373static inline int f2fs_sb_has_##name(struct super_block *sb) \
3374{ \
3375 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_##flagname); \
3376}
3377
3378F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3379F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3380F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3381F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3382F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3383F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3384F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3385F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3386F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3387
3388#ifdef CONFIG_BLK_DEV_ZONED
3389static inline int get_blkz_type(struct f2fs_sb_info *sbi,
3390 struct block_device *bdev, block_t blkaddr)
3391{
3392 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3393 int i;
3394
3395 for (i = 0; i < sbi->s_ndevs; i++)
3396 if (FDEV(i).bdev == bdev)
3397 return FDEV(i).blkz_type[zno];
3398 return -EINVAL;
3399}
3400#endif
3401
3402static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
3403{
3404 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
3405
3406 return blk_queue_discard(q) || f2fs_sb_has_blkzoned(sbi->sb);
3407}
3408
3409static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3410{
3411 clear_opt(sbi, ADAPTIVE);
3412 clear_opt(sbi, LFS);
3413
3414 switch (mt) {
3415 case F2FS_MOUNT_ADAPTIVE:
3416 set_opt(sbi, ADAPTIVE);
3417 break;
3418 case F2FS_MOUNT_LFS:
3419 set_opt(sbi, LFS);
3420 break;
3421 }
3422}
3423
3424static inline bool f2fs_may_encrypt(struct inode *inode)
3425{
3426#ifdef CONFIG_F2FS_FS_ENCRYPTION
3427 umode_t mode = inode->i_mode;
3428
3429 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3430#else
3431 return false;
3432#endif
3433}
3434
3435static inline bool f2fs_force_buffered_io(struct inode *inode, int rw)
3436{
3437 return (f2fs_post_read_required(inode) ||
3438 (rw == WRITE && test_opt(F2FS_I_SB(inode), LFS)) ||
3439 F2FS_I_SB(inode)->s_ndevs);
3440}
3441
3442#ifdef CONFIG_F2FS_FAULT_INJECTION
3443extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
3444 unsigned int type);
3445#else
3446#define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
3447#endif
3448
3449#endif
3450