1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * fs/f2fs/f2fs.h
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
7 */
8 #ifndef _LINUX_F2FS_H
9 #define _LINUX_F2FS_H
10
11 #include <linux/uio.h>
12 #include <linux/types.h>
13 #include <linux/page-flags.h>
14 #include <linux/buffer_head.h>
15 #include <linux/slab.h>
16 #include <linux/crc32.h>
17 #include <linux/magic.h>
18 #include <linux/kobject.h>
19 #include <linux/sched.h>
20 #include <linux/cred.h>
21 #include <linux/sched/mm.h>
22 #include <linux/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #include <linux/quotaops.h>
26 #include <linux/part_stat.h>
27 #include <crypto/hash.h>
28
29 #include <linux/fscrypt.h>
30 #include <linux/fsverity.h>
31
32 struct pagevec;
33
34 #ifdef CONFIG_F2FS_CHECK_FS
35 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
36 #else
37 #define f2fs_bug_on(sbi, condition) \
38 do { \
39 if (WARN_ON(condition)) \
40 set_sbi_flag(sbi, SBI_NEED_FSCK); \
41 } while (0)
42 #endif
43
44 enum {
45 FAULT_KMALLOC,
46 FAULT_KVMALLOC,
47 FAULT_PAGE_ALLOC,
48 FAULT_PAGE_GET,
49 FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
50 FAULT_ALLOC_NID,
51 FAULT_ORPHAN,
52 FAULT_BLOCK,
53 FAULT_DIR_DEPTH,
54 FAULT_EVICT_INODE,
55 FAULT_TRUNCATE,
56 FAULT_READ_IO,
57 FAULT_CHECKPOINT,
58 FAULT_DISCARD,
59 FAULT_WRITE_IO,
60 FAULT_SLAB_ALLOC,
61 FAULT_DQUOT_INIT,
62 FAULT_LOCK_OP,
63 FAULT_BLKADDR,
64 FAULT_MAX,
65 };
66
67 #ifdef CONFIG_F2FS_FAULT_INJECTION
68 #define F2FS_ALL_FAULT_TYPE (GENMASK(FAULT_MAX - 1, 0))
69
70 struct f2fs_fault_info {
71 atomic_t inject_ops;
72 unsigned int inject_rate;
73 unsigned int inject_type;
74 };
75
76 extern const char *f2fs_fault_name[FAULT_MAX];
77 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & BIT(type))
78
79 /* maximum retry count for injected failure */
80 #define DEFAULT_FAILURE_RETRY_COUNT 8
81 #else
82 #define DEFAULT_FAILURE_RETRY_COUNT 1
83 #endif
84
85 /*
86 * For mount options
87 */
88 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000001
89 #define F2FS_MOUNT_DISCARD 0x00000002
90 #define F2FS_MOUNT_NOHEAP 0x00000004
91 #define F2FS_MOUNT_XATTR_USER 0x00000008
92 #define F2FS_MOUNT_POSIX_ACL 0x00000010
93 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000020
94 #define F2FS_MOUNT_INLINE_XATTR 0x00000040
95 #define F2FS_MOUNT_INLINE_DATA 0x00000080
96 #define F2FS_MOUNT_INLINE_DENTRY 0x00000100
97 #define F2FS_MOUNT_FLUSH_MERGE 0x00000200
98 #define F2FS_MOUNT_NOBARRIER 0x00000400
99 #define F2FS_MOUNT_FASTBOOT 0x00000800
100 #define F2FS_MOUNT_READ_EXTENT_CACHE 0x00001000
101 #define F2FS_MOUNT_DATA_FLUSH 0x00002000
102 #define F2FS_MOUNT_FAULT_INJECTION 0x00004000
103 #define F2FS_MOUNT_USRQUOTA 0x00008000
104 #define F2FS_MOUNT_GRPQUOTA 0x00010000
105 #define F2FS_MOUNT_PRJQUOTA 0x00020000
106 #define F2FS_MOUNT_QUOTA 0x00040000
107 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00080000
108 #define F2FS_MOUNT_RESERVE_ROOT 0x00100000
109 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x00200000
110 #define F2FS_MOUNT_NORECOVERY 0x00400000
111 #define F2FS_MOUNT_ATGC 0x00800000
112 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x01000000
113 #define F2FS_MOUNT_GC_MERGE 0x02000000
114 #define F2FS_MOUNT_COMPRESS_CACHE 0x04000000
115 #define F2FS_MOUNT_AGE_EXTENT_CACHE 0x08000000
116
117 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
118 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
119 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
120 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
121
122 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
123 typecheck(unsigned long long, b) && \
124 ((long long)((a) - (b)) > 0))
125
126 typedef u32 block_t; /*
127 * should not change u32, since it is the on-disk block
128 * address format, __le32.
129 */
130 typedef u32 nid_t;
131
132 #define COMPRESS_EXT_NUM 16
133
134 /*
135 * An implementation of an rwsem that is explicitly unfair to readers. This
136 * prevents priority inversion when a low-priority reader acquires the read lock
137 * while sleeping on the write lock but the write lock is needed by
138 * higher-priority clients.
139 */
140
141 struct f2fs_rwsem {
142 struct rw_semaphore internal_rwsem;
143 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
144 wait_queue_head_t read_waiters;
145 #endif
146 };
147
148 struct f2fs_mount_info {
149 unsigned int opt;
150 block_t root_reserved_blocks; /* root reserved blocks */
151 kuid_t s_resuid; /* reserved blocks for uid */
152 kgid_t s_resgid; /* reserved blocks for gid */
153 int active_logs; /* # of active logs */
154 int inline_xattr_size; /* inline xattr size */
155 #ifdef CONFIG_F2FS_FAULT_INJECTION
156 struct f2fs_fault_info fault_info; /* For fault injection */
157 #endif
158 #ifdef CONFIG_QUOTA
159 /* Names of quota files with journalled quota */
160 char *s_qf_names[MAXQUOTAS];
161 int s_jquota_fmt; /* Format of quota to use */
162 #endif
163 /* For which write hints are passed down to block layer */
164 int alloc_mode; /* segment allocation policy */
165 int fsync_mode; /* fsync policy */
166 int fs_mode; /* fs mode: LFS or ADAPTIVE */
167 int bggc_mode; /* bggc mode: off, on or sync */
168 int memory_mode; /* memory mode */
169 int errors; /* errors parameter */
170 int discard_unit; /*
171 * discard command's offset/size should
172 * be aligned to this unit: block,
173 * segment or section
174 */
175 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
176 block_t unusable_cap_perc; /* percentage for cap */
177 block_t unusable_cap; /* Amount of space allowed to be
178 * unusable when disabling checkpoint
179 */
180
181 /* For compression */
182 unsigned char compress_algorithm; /* algorithm type */
183 unsigned char compress_log_size; /* cluster log size */
184 unsigned char compress_level; /* compress level */
185 bool compress_chksum; /* compressed data chksum */
186 unsigned char compress_ext_cnt; /* extension count */
187 unsigned char nocompress_ext_cnt; /* nocompress extension count */
188 int compress_mode; /* compression mode */
189 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
190 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
191 };
192
193 #define F2FS_FEATURE_ENCRYPT 0x00000001
194 #define F2FS_FEATURE_BLKZONED 0x00000002
195 #define F2FS_FEATURE_ATOMIC_WRITE 0x00000004
196 #define F2FS_FEATURE_EXTRA_ATTR 0x00000008
197 #define F2FS_FEATURE_PRJQUOTA 0x00000010
198 #define F2FS_FEATURE_INODE_CHKSUM 0x00000020
199 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x00000040
200 #define F2FS_FEATURE_QUOTA_INO 0x00000080
201 #define F2FS_FEATURE_INODE_CRTIME 0x00000100
202 #define F2FS_FEATURE_LOST_FOUND 0x00000200
203 #define F2FS_FEATURE_VERITY 0x00000400
204 #define F2FS_FEATURE_SB_CHKSUM 0x00000800
205 #define F2FS_FEATURE_CASEFOLD 0x00001000
206 #define F2FS_FEATURE_COMPRESSION 0x00002000
207 #define F2FS_FEATURE_RO 0x00004000
208
209 #define __F2FS_HAS_FEATURE(raw_super, mask) \
210 ((raw_super->feature & cpu_to_le32(mask)) != 0)
211 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
212
213 /*
214 * Default values for user and/or group using reserved blocks
215 */
216 #define F2FS_DEF_RESUID 0
217 #define F2FS_DEF_RESGID 0
218
219 /*
220 * For checkpoint manager
221 */
222 enum {
223 NAT_BITMAP,
224 SIT_BITMAP
225 };
226
227 #define CP_UMOUNT 0x00000001
228 #define CP_FASTBOOT 0x00000002
229 #define CP_SYNC 0x00000004
230 #define CP_RECOVERY 0x00000008
231 #define CP_DISCARD 0x00000010
232 #define CP_TRIMMED 0x00000020
233 #define CP_PAUSE 0x00000040
234 #define CP_RESIZE 0x00000080
235
236 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
237 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
238 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
239 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
240 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
241 #define DEF_CP_INTERVAL 60 /* 60 secs */
242 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
243 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
244 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
245 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
246
247 struct cp_control {
248 int reason;
249 __u64 trim_start;
250 __u64 trim_end;
251 __u64 trim_minlen;
252 };
253
254 /*
255 * indicate meta/data type
256 */
257 enum {
258 META_CP,
259 META_NAT,
260 META_SIT,
261 META_SSA,
262 META_MAX,
263 META_POR,
264 DATA_GENERIC, /* check range only */
265 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
266 DATA_GENERIC_ENHANCE_READ, /*
267 * strong check on range and segment
268 * bitmap but no warning due to race
269 * condition of read on truncated area
270 * by extent_cache
271 */
272 DATA_GENERIC_ENHANCE_UPDATE, /*
273 * strong check on range and segment
274 * bitmap for update case
275 */
276 META_GENERIC,
277 };
278
279 /* for the list of ino */
280 enum {
281 ORPHAN_INO, /* for orphan ino list */
282 APPEND_INO, /* for append ino list */
283 UPDATE_INO, /* for update ino list */
284 TRANS_DIR_INO, /* for transactions dir ino list */
285 FLUSH_INO, /* for multiple device flushing */
286 MAX_INO_ENTRY, /* max. list */
287 };
288
289 struct ino_entry {
290 struct list_head list; /* list head */
291 nid_t ino; /* inode number */
292 unsigned int dirty_device; /* dirty device bitmap */
293 };
294
295 /* for the list of inodes to be GCed */
296 struct inode_entry {
297 struct list_head list; /* list head */
298 struct inode *inode; /* vfs inode pointer */
299 };
300
301 struct fsync_node_entry {
302 struct list_head list; /* list head */
303 struct page *page; /* warm node page pointer */
304 unsigned int seq_id; /* sequence id */
305 };
306
307 struct ckpt_req {
308 struct completion wait; /* completion for checkpoint done */
309 struct llist_node llnode; /* llist_node to be linked in wait queue */
310 int ret; /* return code of checkpoint */
311 ktime_t queue_time; /* request queued time */
312 };
313
314 struct ckpt_req_control {
315 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
316 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
317 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
318 atomic_t issued_ckpt; /* # of actually issued ckpts */
319 atomic_t total_ckpt; /* # of total ckpts */
320 atomic_t queued_ckpt; /* # of queued ckpts */
321 struct llist_head issue_list; /* list for command issue */
322 spinlock_t stat_lock; /* lock for below checkpoint time stats */
323 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
324 unsigned int peak_time; /* peak wait time in msec until now */
325 };
326
327 /* for the bitmap indicate blocks to be discarded */
328 struct discard_entry {
329 struct list_head list; /* list head */
330 block_t start_blkaddr; /* start blockaddr of current segment */
331 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
332 };
333
334 /* minimum discard granularity, unit: block count */
335 #define MIN_DISCARD_GRANULARITY 1
336 /* default discard granularity of inner discard thread, unit: block count */
337 #define DEFAULT_DISCARD_GRANULARITY 16
338 /* default maximum discard granularity of ordered discard, unit: block count */
339 #define DEFAULT_MAX_ORDERED_DISCARD_GRANULARITY 16
340
341 /* max discard pend list number */
342 #define MAX_PLIST_NUM 512
343 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
344 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
345
346 enum {
347 D_PREP, /* initial */
348 D_PARTIAL, /* partially submitted */
349 D_SUBMIT, /* all submitted */
350 D_DONE, /* finished */
351 };
352
353 struct discard_info {
354 block_t lstart; /* logical start address */
355 block_t len; /* length */
356 block_t start; /* actual start address in dev */
357 };
358
359 struct discard_cmd {
360 struct rb_node rb_node; /* rb node located in rb-tree */
361 struct discard_info di; /* discard info */
362 struct list_head list; /* command list */
363 struct completion wait; /* compleation */
364 struct block_device *bdev; /* bdev */
365 unsigned short ref; /* reference count */
366 unsigned char state; /* state */
367 unsigned char queued; /* queued discard */
368 int error; /* bio error */
369 spinlock_t lock; /* for state/bio_ref updating */
370 unsigned short bio_ref; /* bio reference count */
371 };
372
373 enum {
374 DPOLICY_BG,
375 DPOLICY_FORCE,
376 DPOLICY_FSTRIM,
377 DPOLICY_UMOUNT,
378 MAX_DPOLICY,
379 };
380
381 struct discard_policy {
382 int type; /* type of discard */
383 unsigned int min_interval; /* used for candidates exist */
384 unsigned int mid_interval; /* used for device busy */
385 unsigned int max_interval; /* used for candidates not exist */
386 unsigned int max_requests; /* # of discards issued per round */
387 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
388 bool io_aware; /* issue discard in idle time */
389 bool sync; /* submit discard with REQ_SYNC flag */
390 bool ordered; /* issue discard by lba order */
391 bool timeout; /* discard timeout for put_super */
392 unsigned int granularity; /* discard granularity */
393 };
394
395 struct discard_cmd_control {
396 struct task_struct *f2fs_issue_discard; /* discard thread */
397 struct list_head entry_list; /* 4KB discard entry list */
398 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
399 struct list_head wait_list; /* store on-flushing entries */
400 struct list_head fstrim_list; /* in-flight discard from fstrim */
401 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
402 struct mutex cmd_lock;
403 unsigned int nr_discards; /* # of discards in the list */
404 unsigned int max_discards; /* max. discards to be issued */
405 unsigned int max_discard_request; /* max. discard request per round */
406 unsigned int min_discard_issue_time; /* min. interval between discard issue */
407 unsigned int mid_discard_issue_time; /* mid. interval between discard issue */
408 unsigned int max_discard_issue_time; /* max. interval between discard issue */
409 unsigned int discard_io_aware_gran; /* minimum discard granularity not be aware of I/O */
410 unsigned int discard_urgent_util; /* utilization which issue discard proactively */
411 unsigned int discard_granularity; /* discard granularity */
412 unsigned int max_ordered_discard; /* maximum discard granularity issued by lba order */
413 unsigned int undiscard_blks; /* # of undiscard blocks */
414 unsigned int next_pos; /* next discard position */
415 atomic_t issued_discard; /* # of issued discard */
416 atomic_t queued_discard; /* # of queued discard */
417 atomic_t discard_cmd_cnt; /* # of cached cmd count */
418 struct rb_root_cached root; /* root of discard rb-tree */
419 bool rbtree_check; /* config for consistence check */
420 bool discard_wake; /* to wake up discard thread */
421 };
422
423 /* for the list of fsync inodes, used only during recovery */
424 struct fsync_inode_entry {
425 struct list_head list; /* list head */
426 struct inode *inode; /* vfs inode pointer */
427 block_t blkaddr; /* block address locating the last fsync */
428 block_t last_dentry; /* block address locating the last dentry */
429 };
430
431 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
432 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
433
434 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
435 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
436 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
437 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
438
439 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
440 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
441
update_nats_in_cursum(struct f2fs_journal * journal,int i)442 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
443 {
444 int before = nats_in_cursum(journal);
445
446 journal->n_nats = cpu_to_le16(before + i);
447 return before;
448 }
449
update_sits_in_cursum(struct f2fs_journal * journal,int i)450 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
451 {
452 int before = sits_in_cursum(journal);
453
454 journal->n_sits = cpu_to_le16(before + i);
455 return before;
456 }
457
__has_cursum_space(struct f2fs_journal * journal,int size,int type)458 static inline bool __has_cursum_space(struct f2fs_journal *journal,
459 int size, int type)
460 {
461 if (type == NAT_JOURNAL)
462 return size <= MAX_NAT_JENTRIES(journal);
463 return size <= MAX_SIT_JENTRIES(journal);
464 }
465
466 /* for inline stuff */
467 #define DEF_INLINE_RESERVED_SIZE 1
468 static inline int get_extra_isize(struct inode *inode);
469 static inline int get_inline_xattr_addrs(struct inode *inode);
470 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
471 (CUR_ADDRS_PER_INODE(inode) - \
472 get_inline_xattr_addrs(inode) - \
473 DEF_INLINE_RESERVED_SIZE))
474
475 /* for inline dir */
476 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
477 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
478 BITS_PER_BYTE + 1))
479 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
480 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
481 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
482 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
483 NR_INLINE_DENTRY(inode) + \
484 INLINE_DENTRY_BITMAP_SIZE(inode)))
485
486 /*
487 * For INODE and NODE manager
488 */
489 /* for directory operations */
490
491 struct f2fs_filename {
492 /*
493 * The filename the user specified. This is NULL for some
494 * filesystem-internal operations, e.g. converting an inline directory
495 * to a non-inline one, or roll-forward recovering an encrypted dentry.
496 */
497 const struct qstr *usr_fname;
498
499 /*
500 * The on-disk filename. For encrypted directories, this is encrypted.
501 * This may be NULL for lookups in an encrypted dir without the key.
502 */
503 struct fscrypt_str disk_name;
504
505 /* The dirhash of this filename */
506 f2fs_hash_t hash;
507
508 #ifdef CONFIG_FS_ENCRYPTION
509 /*
510 * For lookups in encrypted directories: either the buffer backing
511 * disk_name, or a buffer that holds the decoded no-key name.
512 */
513 struct fscrypt_str crypto_buf;
514 #endif
515 #if IS_ENABLED(CONFIG_UNICODE)
516 /*
517 * For casefolded directories: the casefolded name, but it's left NULL
518 * if the original name is not valid Unicode, if the original name is
519 * "." or "..", if the directory is both casefolded and encrypted and
520 * its encryption key is unavailable, or if the filesystem is doing an
521 * internal operation where usr_fname is also NULL. In all these cases
522 * we fall back to treating the name as an opaque byte sequence.
523 */
524 struct fscrypt_str cf_name;
525 #endif
526 };
527
528 struct f2fs_dentry_ptr {
529 struct inode *inode;
530 void *bitmap;
531 struct f2fs_dir_entry *dentry;
532 __u8 (*filename)[F2FS_SLOT_LEN];
533 int max;
534 int nr_bitmap;
535 };
536
make_dentry_ptr_block(struct inode * inode,struct f2fs_dentry_ptr * d,struct f2fs_dentry_block * t)537 static inline void make_dentry_ptr_block(struct inode *inode,
538 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
539 {
540 d->inode = inode;
541 d->max = NR_DENTRY_IN_BLOCK;
542 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
543 d->bitmap = t->dentry_bitmap;
544 d->dentry = t->dentry;
545 d->filename = t->filename;
546 }
547
make_dentry_ptr_inline(struct inode * inode,struct f2fs_dentry_ptr * d,void * t)548 static inline void make_dentry_ptr_inline(struct inode *inode,
549 struct f2fs_dentry_ptr *d, void *t)
550 {
551 int entry_cnt = NR_INLINE_DENTRY(inode);
552 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
553 int reserved_size = INLINE_RESERVED_SIZE(inode);
554
555 d->inode = inode;
556 d->max = entry_cnt;
557 d->nr_bitmap = bitmap_size;
558 d->bitmap = t;
559 d->dentry = t + bitmap_size + reserved_size;
560 d->filename = t + bitmap_size + reserved_size +
561 SIZE_OF_DIR_ENTRY * entry_cnt;
562 }
563
564 /*
565 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
566 * as its node offset to distinguish from index node blocks.
567 * But some bits are used to mark the node block.
568 */
569 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
570 >> OFFSET_BIT_SHIFT)
571 enum {
572 ALLOC_NODE, /* allocate a new node page if needed */
573 LOOKUP_NODE, /* look up a node without readahead */
574 LOOKUP_NODE_RA, /*
575 * look up a node with readahead called
576 * by get_data_block.
577 */
578 };
579
580 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
581
582 /* congestion wait timeout value, default: 20ms */
583 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
584
585 /* maximum retry quota flush count */
586 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
587
588 /* maximum retry of EIO'ed page */
589 #define MAX_RETRY_PAGE_EIO 100
590
591 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
592
593 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
594
595 /* dirty segments threshold for triggering CP */
596 #define DEFAULT_DIRTY_THRESHOLD 4
597
598 #define RECOVERY_MAX_RA_BLOCKS BIO_MAX_VECS
599 #define RECOVERY_MIN_RA_BLOCKS 1
600
601 #define F2FS_ONSTACK_PAGES 16 /* nr of onstack pages */
602
603 /* for in-memory extent cache entry */
604 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
605
606 /* number of extent info in extent cache we try to shrink */
607 #define READ_EXTENT_CACHE_SHRINK_NUMBER 128
608
609 /* number of age extent info in extent cache we try to shrink */
610 #define AGE_EXTENT_CACHE_SHRINK_NUMBER 128
611 #define LAST_AGE_WEIGHT 30
612 #define SAME_AGE_REGION 1024
613
614 /*
615 * Define data block with age less than 1GB as hot data
616 * define data block with age less than 10GB but more than 1GB as warm data
617 */
618 #define DEF_HOT_DATA_AGE_THRESHOLD 262144
619 #define DEF_WARM_DATA_AGE_THRESHOLD 2621440
620
621 /* extent cache type */
622 enum extent_type {
623 EX_READ,
624 EX_BLOCK_AGE,
625 NR_EXTENT_CACHES,
626 };
627
628 struct extent_info {
629 unsigned int fofs; /* start offset in a file */
630 unsigned int len; /* length of the extent */
631 union {
632 /* read extent_cache */
633 struct {
634 /* start block address of the extent */
635 block_t blk;
636 #ifdef CONFIG_F2FS_FS_COMPRESSION
637 /* physical extent length of compressed blocks */
638 unsigned int c_len;
639 #endif
640 };
641 /* block age extent_cache */
642 struct {
643 /* block age of the extent */
644 unsigned long long age;
645 /* last total blocks allocated */
646 unsigned long long last_blocks;
647 };
648 };
649 };
650
651 struct extent_node {
652 struct rb_node rb_node; /* rb node located in rb-tree */
653 struct extent_info ei; /* extent info */
654 struct list_head list; /* node in global extent list of sbi */
655 struct extent_tree *et; /* extent tree pointer */
656 };
657
658 struct extent_tree {
659 nid_t ino; /* inode number */
660 enum extent_type type; /* keep the extent tree type */
661 struct rb_root_cached root; /* root of extent info rb-tree */
662 struct extent_node *cached_en; /* recently accessed extent node */
663 struct list_head list; /* to be used by sbi->zombie_list */
664 rwlock_t lock; /* protect extent info rb-tree */
665 atomic_t node_cnt; /* # of extent node in rb-tree*/
666 bool largest_updated; /* largest extent updated */
667 struct extent_info largest; /* largest cached extent for EX_READ */
668 };
669
670 struct extent_tree_info {
671 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
672 struct mutex extent_tree_lock; /* locking extent radix tree */
673 struct list_head extent_list; /* lru list for shrinker */
674 spinlock_t extent_lock; /* locking extent lru list */
675 atomic_t total_ext_tree; /* extent tree count */
676 struct list_head zombie_list; /* extent zombie tree list */
677 atomic_t total_zombie_tree; /* extent zombie tree count */
678 atomic_t total_ext_node; /* extent info count */
679 };
680
681 /*
682 * State of block returned by f2fs_map_blocks.
683 */
684 #define F2FS_MAP_NEW (1U << 0)
685 #define F2FS_MAP_MAPPED (1U << 1)
686 #define F2FS_MAP_DELALLOC (1U << 2)
687 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
688 F2FS_MAP_DELALLOC)
689
690 struct f2fs_map_blocks {
691 struct block_device *m_bdev; /* for multi-device dio */
692 block_t m_pblk;
693 block_t m_lblk;
694 unsigned int m_len;
695 unsigned int m_flags;
696 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
697 pgoff_t *m_next_extent; /* point to next possible extent */
698 int m_seg_type;
699 bool m_may_create; /* indicate it is from write path */
700 bool m_multidev_dio; /* indicate it allows multi-device dio */
701 };
702
703 /* for flag in get_data_block */
704 enum {
705 F2FS_GET_BLOCK_DEFAULT,
706 F2FS_GET_BLOCK_FIEMAP,
707 F2FS_GET_BLOCK_BMAP,
708 F2FS_GET_BLOCK_DIO,
709 F2FS_GET_BLOCK_PRE_DIO,
710 F2FS_GET_BLOCK_PRE_AIO,
711 F2FS_GET_BLOCK_PRECACHE,
712 };
713
714 /*
715 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
716 */
717 #define FADVISE_COLD_BIT 0x01
718 #define FADVISE_LOST_PINO_BIT 0x02
719 #define FADVISE_ENCRYPT_BIT 0x04
720 #define FADVISE_ENC_NAME_BIT 0x08
721 #define FADVISE_KEEP_SIZE_BIT 0x10
722 #define FADVISE_HOT_BIT 0x20
723 #define FADVISE_VERITY_BIT 0x40
724 #define FADVISE_TRUNC_BIT 0x80
725
726 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
727
728 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
729 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
730 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
731
732 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
733 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
734 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
735
736 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
737 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
738
739 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
740 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
741
742 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
743 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
744
745 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
746 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
747 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
748
749 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
750 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
751
752 #define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
753 #define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
754 #define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
755
756 #define DEF_DIR_LEVEL 0
757
758 enum {
759 GC_FAILURE_PIN,
760 MAX_GC_FAILURE
761 };
762
763 /* used for f2fs_inode_info->flags */
764 enum {
765 FI_NEW_INODE, /* indicate newly allocated inode */
766 FI_DIRTY_INODE, /* indicate inode is dirty or not */
767 FI_AUTO_RECOVER, /* indicate inode is recoverable */
768 FI_DIRTY_DIR, /* indicate directory has dirty pages */
769 FI_INC_LINK, /* need to increment i_nlink */
770 FI_ACL_MODE, /* indicate acl mode */
771 FI_NO_ALLOC, /* should not allocate any blocks */
772 FI_FREE_NID, /* free allocated nide */
773 FI_NO_EXTENT, /* not to use the extent cache */
774 FI_INLINE_XATTR, /* used for inline xattr */
775 FI_INLINE_DATA, /* used for inline data*/
776 FI_INLINE_DENTRY, /* used for inline dentry */
777 FI_APPEND_WRITE, /* inode has appended data */
778 FI_UPDATE_WRITE, /* inode has in-place-update data */
779 FI_NEED_IPU, /* used for ipu per file */
780 FI_ATOMIC_FILE, /* indicate atomic file */
781 FI_DATA_EXIST, /* indicate data exists */
782 FI_INLINE_DOTS, /* indicate inline dot dentries */
783 FI_SKIP_WRITES, /* should skip data page writeback */
784 FI_OPU_WRITE, /* used for opu per file */
785 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
786 FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
787 FI_HOT_DATA, /* indicate file is hot */
788 FI_EXTRA_ATTR, /* indicate file has extra attribute */
789 FI_PROJ_INHERIT, /* indicate file inherits projectid */
790 FI_PIN_FILE, /* indicate file should not be gced */
791 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
792 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
793 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
794 FI_MMAP_FILE, /* indicate file was mmapped */
795 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
796 FI_COMPRESS_RELEASED, /* compressed blocks were released */
797 FI_ALIGNED_WRITE, /* enable aligned write */
798 FI_COW_FILE, /* indicate COW file */
799 FI_ATOMIC_COMMITTED, /* indicate atomic commit completed except disk sync */
800 FI_ATOMIC_REPLACE, /* indicate atomic replace */
801 FI_MAX, /* max flag, never be used */
802 };
803
804 struct f2fs_inode_info {
805 struct inode vfs_inode; /* serve a vfs inode */
806 unsigned long i_flags; /* keep an inode flags for ioctl */
807 unsigned char i_advise; /* use to give file attribute hints */
808 unsigned char i_dir_level; /* use for dentry level for large dir */
809 unsigned int i_current_depth; /* only for directory depth */
810 /* for gc failure statistic */
811 unsigned int i_gc_failures[MAX_GC_FAILURE];
812 unsigned int i_pino; /* parent inode number */
813 umode_t i_acl_mode; /* keep file acl mode temporarily */
814
815 /* Use below internally in f2fs*/
816 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
817 struct f2fs_rwsem i_sem; /* protect fi info */
818 atomic_t dirty_pages; /* # of dirty pages */
819 f2fs_hash_t chash; /* hash value of given file name */
820 unsigned int clevel; /* maximum level of given file name */
821 struct task_struct *task; /* lookup and create consistency */
822 struct task_struct *cp_task; /* separate cp/wb IO stats*/
823 struct task_struct *wb_task; /* indicate inode is in context of writeback */
824 nid_t i_xattr_nid; /* node id that contains xattrs */
825 loff_t last_disk_size; /* lastly written file size */
826 spinlock_t i_size_lock; /* protect last_disk_size */
827
828 #ifdef CONFIG_QUOTA
829 struct dquot __rcu *i_dquot[MAXQUOTAS];
830
831 /* quota space reservation, managed internally by quota code */
832 qsize_t i_reserved_quota;
833 #endif
834 struct list_head dirty_list; /* dirty list for dirs and files */
835 struct list_head gdirty_list; /* linked in global dirty list */
836 struct task_struct *atomic_write_task; /* store atomic write task */
837 struct extent_tree *extent_tree[NR_EXTENT_CACHES];
838 /* cached extent_tree entry */
839 struct inode *cow_inode; /* copy-on-write inode for atomic write */
840
841 /* avoid racing between foreground op and gc */
842 struct f2fs_rwsem i_gc_rwsem[2];
843 struct f2fs_rwsem i_xattr_sem; /* avoid racing between reading and changing EAs */
844
845 int i_extra_isize; /* size of extra space located in i_addr */
846 kprojid_t i_projid; /* id for project quota */
847 int i_inline_xattr_size; /* inline xattr size */
848 struct timespec64 i_crtime; /* inode creation time */
849 struct timespec64 i_disk_time[3];/* inode disk times */
850
851 /* for file compress */
852 atomic_t i_compr_blocks; /* # of compressed blocks */
853 unsigned char i_compress_algorithm; /* algorithm type */
854 unsigned char i_log_cluster_size; /* log of cluster size */
855 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
856 unsigned char i_compress_flag; /* compress flag */
857 unsigned int i_cluster_size; /* cluster size */
858
859 unsigned int atomic_write_cnt;
860 loff_t original_i_size; /* original i_size before atomic write */
861 };
862
get_read_extent_info(struct extent_info * ext,struct f2fs_extent * i_ext)863 static inline void get_read_extent_info(struct extent_info *ext,
864 struct f2fs_extent *i_ext)
865 {
866 ext->fofs = le32_to_cpu(i_ext->fofs);
867 ext->blk = le32_to_cpu(i_ext->blk);
868 ext->len = le32_to_cpu(i_ext->len);
869 }
870
set_raw_read_extent(struct extent_info * ext,struct f2fs_extent * i_ext)871 static inline void set_raw_read_extent(struct extent_info *ext,
872 struct f2fs_extent *i_ext)
873 {
874 i_ext->fofs = cpu_to_le32(ext->fofs);
875 i_ext->blk = cpu_to_le32(ext->blk);
876 i_ext->len = cpu_to_le32(ext->len);
877 }
878
__is_discard_mergeable(struct discard_info * back,struct discard_info * front,unsigned int max_len)879 static inline bool __is_discard_mergeable(struct discard_info *back,
880 struct discard_info *front, unsigned int max_len)
881 {
882 return (back->lstart + back->len == front->lstart) &&
883 (back->len + front->len <= max_len);
884 }
885
__is_discard_back_mergeable(struct discard_info * cur,struct discard_info * back,unsigned int max_len)886 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
887 struct discard_info *back, unsigned int max_len)
888 {
889 return __is_discard_mergeable(back, cur, max_len);
890 }
891
__is_discard_front_mergeable(struct discard_info * cur,struct discard_info * front,unsigned int max_len)892 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
893 struct discard_info *front, unsigned int max_len)
894 {
895 return __is_discard_mergeable(cur, front, max_len);
896 }
897
898 /*
899 * For free nid management
900 */
901 enum nid_state {
902 FREE_NID, /* newly added to free nid list */
903 PREALLOC_NID, /* it is preallocated */
904 MAX_NID_STATE,
905 };
906
907 enum nat_state {
908 TOTAL_NAT,
909 DIRTY_NAT,
910 RECLAIMABLE_NAT,
911 MAX_NAT_STATE,
912 };
913
914 struct f2fs_nm_info {
915 block_t nat_blkaddr; /* base disk address of NAT */
916 nid_t max_nid; /* maximum possible node ids */
917 nid_t available_nids; /* # of available node ids */
918 nid_t next_scan_nid; /* the next nid to be scanned */
919 nid_t max_rf_node_blocks; /* max # of nodes for recovery */
920 unsigned int ram_thresh; /* control the memory footprint */
921 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
922 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
923
924 /* NAT cache management */
925 struct radix_tree_root nat_root;/* root of the nat entry cache */
926 struct radix_tree_root nat_set_root;/* root of the nat set cache */
927 struct f2fs_rwsem nat_tree_lock; /* protect nat entry tree */
928 struct list_head nat_entries; /* cached nat entry list (clean) */
929 spinlock_t nat_list_lock; /* protect clean nat entry list */
930 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
931 unsigned int nat_blocks; /* # of nat blocks */
932
933 /* free node ids management */
934 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
935 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
936 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
937 spinlock_t nid_list_lock; /* protect nid lists ops */
938 struct mutex build_lock; /* lock for build free nids */
939 unsigned char **free_nid_bitmap;
940 unsigned char *nat_block_bitmap;
941 unsigned short *free_nid_count; /* free nid count of NAT block */
942
943 /* for checkpoint */
944 char *nat_bitmap; /* NAT bitmap pointer */
945
946 unsigned int nat_bits_blocks; /* # of nat bits blocks */
947 unsigned char *nat_bits; /* NAT bits blocks */
948 unsigned char *full_nat_bits; /* full NAT pages */
949 unsigned char *empty_nat_bits; /* empty NAT pages */
950 #ifdef CONFIG_F2FS_CHECK_FS
951 char *nat_bitmap_mir; /* NAT bitmap mirror */
952 #endif
953 int bitmap_size; /* bitmap size */
954 };
955
956 /*
957 * this structure is used as one of function parameters.
958 * all the information are dedicated to a given direct node block determined
959 * by the data offset in a file.
960 */
961 struct dnode_of_data {
962 struct inode *inode; /* vfs inode pointer */
963 struct page *inode_page; /* its inode page, NULL is possible */
964 struct page *node_page; /* cached direct node page */
965 nid_t nid; /* node id of the direct node block */
966 unsigned int ofs_in_node; /* data offset in the node page */
967 bool inode_page_locked; /* inode page is locked or not */
968 bool node_changed; /* is node block changed */
969 char cur_level; /* level of hole node page */
970 char max_level; /* level of current page located */
971 block_t data_blkaddr; /* block address of the node block */
972 };
973
set_new_dnode(struct dnode_of_data * dn,struct inode * inode,struct page * ipage,struct page * npage,nid_t nid)974 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
975 struct page *ipage, struct page *npage, nid_t nid)
976 {
977 memset(dn, 0, sizeof(*dn));
978 dn->inode = inode;
979 dn->inode_page = ipage;
980 dn->node_page = npage;
981 dn->nid = nid;
982 }
983
984 /*
985 * For SIT manager
986 *
987 * By default, there are 6 active log areas across the whole main area.
988 * When considering hot and cold data separation to reduce cleaning overhead,
989 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
990 * respectively.
991 * In the current design, you should not change the numbers intentionally.
992 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
993 * logs individually according to the underlying devices. (default: 6)
994 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
995 * data and 8 for node logs.
996 */
997 #define NR_CURSEG_DATA_TYPE (3)
998 #define NR_CURSEG_NODE_TYPE (3)
999 #define NR_CURSEG_INMEM_TYPE (2)
1000 #define NR_CURSEG_RO_TYPE (2)
1001 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
1002 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
1003
1004 enum {
1005 CURSEG_HOT_DATA = 0, /* directory entry blocks */
1006 CURSEG_WARM_DATA, /* data blocks */
1007 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
1008 CURSEG_HOT_NODE, /* direct node blocks of directory files */
1009 CURSEG_WARM_NODE, /* direct node blocks of normal files */
1010 CURSEG_COLD_NODE, /* indirect node blocks */
1011 NR_PERSISTENT_LOG, /* number of persistent log */
1012 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
1013 /* pinned file that needs consecutive block address */
1014 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
1015 NO_CHECK_TYPE, /* number of persistent & inmem log */
1016 };
1017
1018 struct flush_cmd {
1019 struct completion wait;
1020 struct llist_node llnode;
1021 nid_t ino;
1022 int ret;
1023 };
1024
1025 struct flush_cmd_control {
1026 struct task_struct *f2fs_issue_flush; /* flush thread */
1027 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1028 atomic_t issued_flush; /* # of issued flushes */
1029 atomic_t queued_flush; /* # of queued flushes */
1030 struct llist_head issue_list; /* list for command issue */
1031 struct llist_node *dispatch_list; /* list for command dispatch */
1032 };
1033
1034 struct f2fs_sm_info {
1035 struct sit_info *sit_info; /* whole segment information */
1036 struct free_segmap_info *free_info; /* free segment information */
1037 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1038 struct curseg_info *curseg_array; /* active segment information */
1039
1040 struct f2fs_rwsem curseg_lock; /* for preventing curseg change */
1041
1042 block_t seg0_blkaddr; /* block address of 0'th segment */
1043 block_t main_blkaddr; /* start block address of main area */
1044 block_t ssa_blkaddr; /* start block address of SSA area */
1045
1046 unsigned int segment_count; /* total # of segments */
1047 unsigned int main_segments; /* # of segments in main area */
1048 unsigned int reserved_segments; /* # of reserved segments */
1049 unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
1050 unsigned int ovp_segments; /* # of overprovision segments */
1051
1052 /* a threshold to reclaim prefree segments */
1053 unsigned int rec_prefree_segments;
1054
1055 struct list_head sit_entry_set; /* sit entry set list */
1056
1057 unsigned int ipu_policy; /* in-place-update policy */
1058 unsigned int min_ipu_util; /* in-place-update threshold */
1059 unsigned int min_fsync_blocks; /* threshold for fsync */
1060 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1061 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1062 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1063
1064 /* for flush command control */
1065 struct flush_cmd_control *fcc_info;
1066
1067 /* for discard command control */
1068 struct discard_cmd_control *dcc_info;
1069 };
1070
1071 /*
1072 * For superblock
1073 */
1074 /*
1075 * COUNT_TYPE for monitoring
1076 *
1077 * f2fs monitors the number of several block types such as on-writeback,
1078 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1079 */
1080 #define WB_DATA_TYPE(p, f) \
1081 (f || f2fs_is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1082 enum count_type {
1083 F2FS_DIRTY_DENTS,
1084 F2FS_DIRTY_DATA,
1085 F2FS_DIRTY_QDATA,
1086 F2FS_DIRTY_NODES,
1087 F2FS_DIRTY_META,
1088 F2FS_DIRTY_IMETA,
1089 F2FS_WB_CP_DATA,
1090 F2FS_WB_DATA,
1091 F2FS_RD_DATA,
1092 F2FS_RD_NODE,
1093 F2FS_RD_META,
1094 F2FS_DIO_WRITE,
1095 F2FS_DIO_READ,
1096 NR_COUNT_TYPE,
1097 };
1098
1099 /*
1100 * The below are the page types of bios used in submit_bio().
1101 * The available types are:
1102 * DATA User data pages. It operates as async mode.
1103 * NODE Node pages. It operates as async mode.
1104 * META FS metadata pages such as SIT, NAT, CP.
1105 * NR_PAGE_TYPE The number of page types.
1106 * META_FLUSH Make sure the previous pages are written
1107 * with waiting the bio's completion
1108 * ... Only can be used with META.
1109 */
1110 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1111 #define PAGE_TYPE_ON_MAIN(type) ((type) == DATA || (type) == NODE)
1112 enum page_type {
1113 DATA = 0,
1114 NODE = 1, /* should not change this */
1115 META,
1116 NR_PAGE_TYPE,
1117 META_FLUSH,
1118 IPU, /* the below types are used by tracepoints only. */
1119 OPU,
1120 };
1121
1122 enum temp_type {
1123 HOT = 0, /* must be zero for meta bio */
1124 WARM,
1125 COLD,
1126 NR_TEMP_TYPE,
1127 };
1128
1129 enum need_lock_type {
1130 LOCK_REQ = 0,
1131 LOCK_DONE,
1132 LOCK_RETRY,
1133 };
1134
1135 enum cp_reason_type {
1136 CP_NO_NEEDED,
1137 CP_NON_REGULAR,
1138 CP_COMPRESSED,
1139 CP_HARDLINK,
1140 CP_SB_NEED_CP,
1141 CP_WRONG_PINO,
1142 CP_NO_SPC_ROLL,
1143 CP_NODE_NEED_CP,
1144 CP_FASTBOOT_MODE,
1145 CP_SPEC_LOG_NUM,
1146 CP_RECOVER_DIR,
1147 };
1148
1149 enum iostat_type {
1150 /* WRITE IO */
1151 APP_DIRECT_IO, /* app direct write IOs */
1152 APP_BUFFERED_IO, /* app buffered write IOs */
1153 APP_WRITE_IO, /* app write IOs */
1154 APP_MAPPED_IO, /* app mapped IOs */
1155 APP_BUFFERED_CDATA_IO, /* app buffered write IOs on compressed file */
1156 APP_MAPPED_CDATA_IO, /* app mapped write IOs on compressed file */
1157 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1158 FS_CDATA_IO, /* data IOs from kworker/fsync/reclaimer on compressed file */
1159 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1160 FS_META_IO, /* meta IOs from kworker/reclaimer */
1161 FS_GC_DATA_IO, /* data IOs from forground gc */
1162 FS_GC_NODE_IO, /* node IOs from forground gc */
1163 FS_CP_DATA_IO, /* data IOs from checkpoint */
1164 FS_CP_NODE_IO, /* node IOs from checkpoint */
1165 FS_CP_META_IO, /* meta IOs from checkpoint */
1166
1167 /* READ IO */
1168 APP_DIRECT_READ_IO, /* app direct read IOs */
1169 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1170 APP_READ_IO, /* app read IOs */
1171 APP_MAPPED_READ_IO, /* app mapped read IOs */
1172 APP_BUFFERED_CDATA_READ_IO, /* app buffered read IOs on compressed file */
1173 APP_MAPPED_CDATA_READ_IO, /* app mapped read IOs on compressed file */
1174 FS_DATA_READ_IO, /* data read IOs */
1175 FS_GDATA_READ_IO, /* data read IOs from background gc */
1176 FS_CDATA_READ_IO, /* compressed data read IOs */
1177 FS_NODE_READ_IO, /* node read IOs */
1178 FS_META_READ_IO, /* meta read IOs */
1179
1180 /* other */
1181 FS_DISCARD_IO, /* discard */
1182 FS_FLUSH_IO, /* flush */
1183 FS_ZONE_RESET_IO, /* zone reset */
1184 NR_IO_TYPE,
1185 };
1186
1187 struct f2fs_io_info {
1188 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1189 nid_t ino; /* inode number */
1190 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1191 enum temp_type temp; /* contains HOT/WARM/COLD */
1192 enum req_op op; /* contains REQ_OP_ */
1193 blk_opf_t op_flags; /* req_flag_bits */
1194 block_t new_blkaddr; /* new block address to be written */
1195 block_t old_blkaddr; /* old block address before Cow */
1196 struct page *page; /* page to be written */
1197 struct page *encrypted_page; /* encrypted page */
1198 struct page *compressed_page; /* compressed page */
1199 struct list_head list; /* serialize IOs */
1200 unsigned int compr_blocks; /* # of compressed block addresses */
1201 unsigned int need_lock:8; /* indicate we need to lock cp_rwsem */
1202 unsigned int version:8; /* version of the node */
1203 unsigned int submitted:1; /* indicate IO submission */
1204 unsigned int in_list:1; /* indicate fio is in io_list */
1205 unsigned int is_por:1; /* indicate IO is from recovery or not */
1206 unsigned int encrypted:1; /* indicate file is encrypted */
1207 unsigned int post_read:1; /* require post read */
1208 enum iostat_type io_type; /* io type */
1209 struct writeback_control *io_wbc; /* writeback control */
1210 struct bio **bio; /* bio for ipu */
1211 sector_t *last_block; /* last block number in bio */
1212 };
1213
1214 struct bio_entry {
1215 struct bio *bio;
1216 struct list_head list;
1217 };
1218
1219 #define is_read_io(rw) ((rw) == READ)
1220 struct f2fs_bio_info {
1221 struct f2fs_sb_info *sbi; /* f2fs superblock */
1222 struct bio *bio; /* bios to merge */
1223 sector_t last_block_in_bio; /* last block number */
1224 struct f2fs_io_info fio; /* store buffered io info. */
1225 #ifdef CONFIG_BLK_DEV_ZONED
1226 struct completion zone_wait; /* condition value for the previous open zone to close */
1227 struct bio *zone_pending_bio; /* pending bio for the previous zone */
1228 void *bi_private; /* previous bi_private for pending bio */
1229 #endif
1230 struct f2fs_rwsem io_rwsem; /* blocking op for bio */
1231 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1232 struct list_head io_list; /* track fios */
1233 struct list_head bio_list; /* bio entry list head */
1234 struct f2fs_rwsem bio_list_lock; /* lock to protect bio entry list */
1235 };
1236
1237 #define FDEV(i) (sbi->devs[i])
1238 #define RDEV(i) (raw_super->devs[i])
1239 struct f2fs_dev_info {
1240 struct block_device *bdev;
1241 char path[MAX_PATH_LEN];
1242 unsigned int total_segments;
1243 block_t start_blk;
1244 block_t end_blk;
1245 #ifdef CONFIG_BLK_DEV_ZONED
1246 unsigned int nr_blkz; /* Total number of zones */
1247 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1248 #endif
1249 };
1250
1251 enum inode_type {
1252 DIR_INODE, /* for dirty dir inode */
1253 FILE_INODE, /* for dirty regular/symlink inode */
1254 DIRTY_META, /* for all dirtied inode metadata */
1255 NR_INODE_TYPE,
1256 };
1257
1258 /* for inner inode cache management */
1259 struct inode_management {
1260 struct radix_tree_root ino_root; /* ino entry array */
1261 spinlock_t ino_lock; /* for ino entry lock */
1262 struct list_head ino_list; /* inode list head */
1263 unsigned long ino_num; /* number of entries */
1264 };
1265
1266 /* for GC_AT */
1267 struct atgc_management {
1268 bool atgc_enabled; /* ATGC is enabled or not */
1269 struct rb_root_cached root; /* root of victim rb-tree */
1270 struct list_head victim_list; /* linked with all victim entries */
1271 unsigned int victim_count; /* victim count in rb-tree */
1272 unsigned int candidate_ratio; /* candidate ratio */
1273 unsigned int max_candidate_count; /* max candidate count */
1274 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1275 unsigned long long age_threshold; /* age threshold */
1276 };
1277
1278 struct f2fs_gc_control {
1279 unsigned int victim_segno; /* target victim segment number */
1280 int init_gc_type; /* FG_GC or BG_GC */
1281 bool no_bg_gc; /* check the space and stop bg_gc */
1282 bool should_migrate_blocks; /* should migrate blocks */
1283 bool err_gc_skipped; /* return EAGAIN if GC skipped */
1284 unsigned int nr_free_secs; /* # of free sections to do GC */
1285 };
1286
1287 /*
1288 * For s_flag in struct f2fs_sb_info
1289 * Modification on enum should be synchronized with s_flag array
1290 */
1291 enum {
1292 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1293 SBI_IS_CLOSE, /* specify unmounting */
1294 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1295 SBI_POR_DOING, /* recovery is doing or not */
1296 SBI_NEED_SB_WRITE, /* need to recover superblock */
1297 SBI_NEED_CP, /* need to checkpoint */
1298 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1299 SBI_IS_RECOVERED, /* recovered orphan/data */
1300 SBI_CP_DISABLED, /* CP was disabled last mount */
1301 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1302 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1303 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1304 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1305 SBI_IS_RESIZEFS, /* resizefs is in process */
1306 SBI_IS_FREEZING, /* freezefs is in process */
1307 SBI_IS_WRITABLE, /* remove ro mountoption transiently */
1308 MAX_SBI_FLAG,
1309 };
1310
1311 enum {
1312 CP_TIME,
1313 REQ_TIME,
1314 DISCARD_TIME,
1315 GC_TIME,
1316 DISABLE_TIME,
1317 UMOUNT_DISCARD_TIMEOUT,
1318 MAX_TIME,
1319 };
1320
1321 /* Note that you need to keep synchronization with this gc_mode_names array */
1322 enum {
1323 GC_NORMAL,
1324 GC_IDLE_CB,
1325 GC_IDLE_GREEDY,
1326 GC_IDLE_AT,
1327 GC_URGENT_HIGH,
1328 GC_URGENT_LOW,
1329 GC_URGENT_MID,
1330 MAX_GC_MODE,
1331 };
1332
1333 enum {
1334 BGGC_MODE_ON, /* background gc is on */
1335 BGGC_MODE_OFF, /* background gc is off */
1336 BGGC_MODE_SYNC, /*
1337 * background gc is on, migrating blocks
1338 * like foreground gc
1339 */
1340 };
1341
1342 enum {
1343 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1344 FS_MODE_LFS, /* use lfs allocation only */
1345 FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
1346 FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
1347 };
1348
1349 enum {
1350 ALLOC_MODE_DEFAULT, /* stay default */
1351 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1352 };
1353
1354 enum fsync_mode {
1355 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1356 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1357 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1358 };
1359
1360 enum {
1361 COMPR_MODE_FS, /*
1362 * automatically compress compression
1363 * enabled files
1364 */
1365 COMPR_MODE_USER, /*
1366 * automatical compression is disabled.
1367 * user can control the file compression
1368 * using ioctls
1369 */
1370 };
1371
1372 enum {
1373 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1374 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1375 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1376 };
1377
1378 enum {
1379 MEMORY_MODE_NORMAL, /* memory mode for normal devices */
1380 MEMORY_MODE_LOW, /* memory mode for low memry devices */
1381 };
1382
1383 enum errors_option {
1384 MOUNT_ERRORS_READONLY, /* remount fs ro on errors */
1385 MOUNT_ERRORS_CONTINUE, /* continue on errors */
1386 MOUNT_ERRORS_PANIC, /* panic on errors */
1387 };
1388
1389 enum {
1390 BACKGROUND,
1391 FOREGROUND,
1392 MAX_CALL_TYPE,
1393 TOTAL_CALL = FOREGROUND,
1394 };
1395
1396 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1397 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1398 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1399
1400 /*
1401 * Layout of f2fs page.private:
1402 *
1403 * Layout A: lowest bit should be 1
1404 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1405 * bit 0 PAGE_PRIVATE_NOT_POINTER
1406 * bit 1 PAGE_PRIVATE_ONGOING_MIGRATION
1407 * bit 2 PAGE_PRIVATE_INLINE_INODE
1408 * bit 3 PAGE_PRIVATE_REF_RESOURCE
1409 * bit 4- f2fs private data
1410 *
1411 * Layout B: lowest bit should be 0
1412 * page.private is a wrapped pointer.
1413 */
1414 enum {
1415 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1416 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1417 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1418 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1419 PAGE_PRIVATE_MAX
1420 };
1421
1422 /* For compression */
1423 enum compress_algorithm_type {
1424 COMPRESS_LZO,
1425 COMPRESS_LZ4,
1426 COMPRESS_ZSTD,
1427 COMPRESS_LZORLE,
1428 COMPRESS_MAX,
1429 };
1430
1431 enum compress_flag {
1432 COMPRESS_CHKSUM,
1433 COMPRESS_MAX_FLAG,
1434 };
1435
1436 #define COMPRESS_WATERMARK 20
1437 #define COMPRESS_PERCENT 20
1438
1439 #define COMPRESS_DATA_RESERVED_SIZE 4
1440 struct compress_data {
1441 __le32 clen; /* compressed data size */
1442 __le32 chksum; /* compressed data chksum */
1443 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1444 u8 cdata[]; /* compressed data */
1445 };
1446
1447 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1448
1449 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1450
1451 #define F2FS_ZSTD_DEFAULT_CLEVEL 1
1452
1453 #define COMPRESS_LEVEL_OFFSET 8
1454
1455 /* compress context */
1456 struct compress_ctx {
1457 struct inode *inode; /* inode the context belong to */
1458 pgoff_t cluster_idx; /* cluster index number */
1459 unsigned int cluster_size; /* page count in cluster */
1460 unsigned int log_cluster_size; /* log of cluster size */
1461 struct page **rpages; /* pages store raw data in cluster */
1462 unsigned int nr_rpages; /* total page number in rpages */
1463 struct page **cpages; /* pages store compressed data in cluster */
1464 unsigned int nr_cpages; /* total page number in cpages */
1465 unsigned int valid_nr_cpages; /* valid page number in cpages */
1466 void *rbuf; /* virtual mapped address on rpages */
1467 struct compress_data *cbuf; /* virtual mapped address on cpages */
1468 size_t rlen; /* valid data length in rbuf */
1469 size_t clen; /* valid data length in cbuf */
1470 void *private; /* payload buffer for specified compression algorithm */
1471 void *private2; /* extra payload buffer */
1472 };
1473
1474 /* compress context for write IO path */
1475 struct compress_io_ctx {
1476 u32 magic; /* magic number to indicate page is compressed */
1477 struct inode *inode; /* inode the context belong to */
1478 struct page **rpages; /* pages store raw data in cluster */
1479 unsigned int nr_rpages; /* total page number in rpages */
1480 atomic_t pending_pages; /* in-flight compressed page count */
1481 };
1482
1483 /* Context for decompressing one cluster on the read IO path */
1484 struct decompress_io_ctx {
1485 u32 magic; /* magic number to indicate page is compressed */
1486 struct inode *inode; /* inode the context belong to */
1487 pgoff_t cluster_idx; /* cluster index number */
1488 unsigned int cluster_size; /* page count in cluster */
1489 unsigned int log_cluster_size; /* log of cluster size */
1490 struct page **rpages; /* pages store raw data in cluster */
1491 unsigned int nr_rpages; /* total page number in rpages */
1492 struct page **cpages; /* pages store compressed data in cluster */
1493 unsigned int nr_cpages; /* total page number in cpages */
1494 struct page **tpages; /* temp pages to pad holes in cluster */
1495 void *rbuf; /* virtual mapped address on rpages */
1496 struct compress_data *cbuf; /* virtual mapped address on cpages */
1497 size_t rlen; /* valid data length in rbuf */
1498 size_t clen; /* valid data length in cbuf */
1499
1500 /*
1501 * The number of compressed pages remaining to be read in this cluster.
1502 * This is initially nr_cpages. It is decremented by 1 each time a page
1503 * has been read (or failed to be read). When it reaches 0, the cluster
1504 * is decompressed (or an error is reported).
1505 *
1506 * If an error occurs before all the pages have been submitted for I/O,
1507 * then this will never reach 0. In this case the I/O submitter is
1508 * responsible for calling f2fs_decompress_end_io() instead.
1509 */
1510 atomic_t remaining_pages;
1511
1512 /*
1513 * Number of references to this decompress_io_ctx.
1514 *
1515 * One reference is held for I/O completion. This reference is dropped
1516 * after the pagecache pages are updated and unlocked -- either after
1517 * decompression (and verity if enabled), or after an error.
1518 *
1519 * In addition, each compressed page holds a reference while it is in a
1520 * bio. These references are necessary prevent compressed pages from
1521 * being freed while they are still in a bio.
1522 */
1523 refcount_t refcnt;
1524
1525 bool failed; /* IO error occurred before decompression? */
1526 bool need_verity; /* need fs-verity verification after decompression? */
1527 void *private; /* payload buffer for specified decompression algorithm */
1528 void *private2; /* extra payload buffer */
1529 struct work_struct verity_work; /* work to verify the decompressed pages */
1530 struct work_struct free_work; /* work for late free this structure itself */
1531 };
1532
1533 #define NULL_CLUSTER ((unsigned int)(~0))
1534 #define MIN_COMPRESS_LOG_SIZE 2
1535 #define MAX_COMPRESS_LOG_SIZE 8
1536 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1537
1538 struct f2fs_sb_info {
1539 struct super_block *sb; /* pointer to VFS super block */
1540 struct proc_dir_entry *s_proc; /* proc entry */
1541 struct f2fs_super_block *raw_super; /* raw super block pointer */
1542 struct f2fs_rwsem sb_lock; /* lock for raw super block */
1543 int valid_super_block; /* valid super block no */
1544 unsigned long s_flag; /* flags for sbi */
1545 struct mutex writepages; /* mutex for writepages() */
1546
1547 #ifdef CONFIG_BLK_DEV_ZONED
1548 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1549 #endif
1550
1551 /* for node-related operations */
1552 struct f2fs_nm_info *nm_info; /* node manager */
1553 struct inode *node_inode; /* cache node blocks */
1554
1555 /* for segment-related operations */
1556 struct f2fs_sm_info *sm_info; /* segment manager */
1557
1558 /* for bio operations */
1559 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1560 /* keep migration IO order for LFS mode */
1561 struct f2fs_rwsem io_order_lock;
1562 pgoff_t page_eio_ofs[NR_PAGE_TYPE]; /* EIO page offset */
1563 int page_eio_cnt[NR_PAGE_TYPE]; /* EIO count */
1564
1565 /* for checkpoint */
1566 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1567 int cur_cp_pack; /* remain current cp pack */
1568 spinlock_t cp_lock; /* for flag in ckpt */
1569 struct inode *meta_inode; /* cache meta blocks */
1570 struct f2fs_rwsem cp_global_sem; /* checkpoint procedure lock */
1571 struct f2fs_rwsem cp_rwsem; /* blocking FS operations */
1572 struct f2fs_rwsem node_write; /* locking node writes */
1573 struct f2fs_rwsem node_change; /* locking node change */
1574 wait_queue_head_t cp_wait;
1575 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1576 long interval_time[MAX_TIME]; /* to store thresholds */
1577 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1578
1579 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1580
1581 spinlock_t fsync_node_lock; /* for node entry lock */
1582 struct list_head fsync_node_list; /* node list head */
1583 unsigned int fsync_seg_id; /* sequence id */
1584 unsigned int fsync_node_num; /* number of node entries */
1585
1586 /* for orphan inode, use 0'th array */
1587 unsigned int max_orphans; /* max orphan inodes */
1588
1589 /* for inode management */
1590 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1591 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1592 struct mutex flush_lock; /* for flush exclusion */
1593
1594 /* for extent tree cache */
1595 struct extent_tree_info extent_tree[NR_EXTENT_CACHES];
1596 atomic64_t allocated_data_blocks; /* for block age extent_cache */
1597
1598 /* The threshold used for hot and warm data seperation*/
1599 unsigned int hot_data_age_threshold;
1600 unsigned int warm_data_age_threshold;
1601 unsigned int last_age_weight;
1602
1603 /* basic filesystem units */
1604 unsigned int log_sectors_per_block; /* log2 sectors per block */
1605 unsigned int log_blocksize; /* log2 block size */
1606 unsigned int blocksize; /* block size */
1607 unsigned int root_ino_num; /* root inode number*/
1608 unsigned int node_ino_num; /* node inode number*/
1609 unsigned int meta_ino_num; /* meta inode number*/
1610 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1611 unsigned int blocks_per_seg; /* blocks per segment */
1612 unsigned int unusable_blocks_per_sec; /* unusable blocks per section */
1613 unsigned int segs_per_sec; /* segments per section */
1614 unsigned int secs_per_zone; /* sections per zone */
1615 unsigned int total_sections; /* total section count */
1616 unsigned int total_node_count; /* total node block count */
1617 unsigned int total_valid_node_count; /* valid node block count */
1618 int dir_level; /* directory level */
1619 bool readdir_ra; /* readahead inode in readdir */
1620 u64 max_io_bytes; /* max io bytes to merge IOs */
1621
1622 block_t user_block_count; /* # of user blocks */
1623 block_t total_valid_block_count; /* # of valid blocks */
1624 block_t discard_blks; /* discard command candidats */
1625 block_t last_valid_block_count; /* for recovery */
1626 block_t reserved_blocks; /* configurable reserved blocks */
1627 block_t current_reserved_blocks; /* current reserved blocks */
1628
1629 /* Additional tracking for no checkpoint mode */
1630 block_t unusable_block_count; /* # of blocks saved by last cp */
1631
1632 unsigned int nquota_files; /* # of quota sysfile */
1633 struct f2fs_rwsem quota_sem; /* blocking cp for flags */
1634
1635 /* # of pages, see count_type */
1636 atomic_t nr_pages[NR_COUNT_TYPE];
1637 /* # of allocated blocks */
1638 struct percpu_counter alloc_valid_block_count;
1639 /* # of node block writes as roll forward recovery */
1640 struct percpu_counter rf_node_block_count;
1641
1642 /* writeback control */
1643 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1644
1645 /* valid inode count */
1646 struct percpu_counter total_valid_inode_count;
1647
1648 struct f2fs_mount_info mount_opt; /* mount options */
1649
1650 /* for cleaning operations */
1651 struct f2fs_rwsem gc_lock; /*
1652 * semaphore for GC, avoid
1653 * race between GC and GC or CP
1654 */
1655 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1656 struct atgc_management am; /* atgc management */
1657 unsigned int cur_victim_sec; /* current victim section num */
1658 unsigned int gc_mode; /* current GC state */
1659 unsigned int next_victim_seg[2]; /* next segment in victim section */
1660 spinlock_t gc_remaining_trials_lock;
1661 /* remaining trial count for GC_URGENT_* and GC_IDLE_* */
1662 unsigned int gc_remaining_trials;
1663
1664 /* for skip statistic */
1665 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1666
1667 /* threshold for gc trials on pinned files */
1668 u64 gc_pin_file_threshold;
1669 struct f2fs_rwsem pin_sem;
1670
1671 /* maximum # of trials to find a victim segment for SSR and GC */
1672 unsigned int max_victim_search;
1673 /* migration granularity of garbage collection, unit: segment */
1674 unsigned int migration_granularity;
1675
1676 /*
1677 * for stat information.
1678 * one is for the LFS mode, and the other is for the SSR mode.
1679 */
1680 #ifdef CONFIG_F2FS_STAT_FS
1681 struct f2fs_stat_info *stat_info; /* FS status information */
1682 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1683 unsigned int segment_count[2]; /* # of allocated segments */
1684 unsigned int block_count[2]; /* # of allocated blocks */
1685 atomic_t inplace_count; /* # of inplace update */
1686 /* # of lookup extent cache */
1687 atomic64_t total_hit_ext[NR_EXTENT_CACHES];
1688 /* # of hit rbtree extent node */
1689 atomic64_t read_hit_rbtree[NR_EXTENT_CACHES];
1690 /* # of hit cached extent node */
1691 atomic64_t read_hit_cached[NR_EXTENT_CACHES];
1692 /* # of hit largest extent node in read extent cache */
1693 atomic64_t read_hit_largest;
1694 atomic_t inline_xattr; /* # of inline_xattr inodes */
1695 atomic_t inline_inode; /* # of inline_data inodes */
1696 atomic_t inline_dir; /* # of inline_dentry inodes */
1697 atomic_t compr_inode; /* # of compressed inodes */
1698 atomic64_t compr_blocks; /* # of compressed blocks */
1699 atomic_t swapfile_inode; /* # of swapfile inodes */
1700 atomic_t atomic_files; /* # of opened atomic file */
1701 atomic_t max_aw_cnt; /* max # of atomic writes */
1702 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1703 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1704 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1705 atomic_t cp_call_count[MAX_CALL_TYPE]; /* # of cp call */
1706 #endif
1707 spinlock_t stat_lock; /* lock for stat operations */
1708
1709 /* to attach REQ_META|REQ_FUA flags */
1710 unsigned int data_io_flag;
1711 unsigned int node_io_flag;
1712
1713 /* For sysfs support */
1714 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1715 struct completion s_kobj_unregister;
1716
1717 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1718 struct completion s_stat_kobj_unregister;
1719
1720 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1721 struct completion s_feature_list_kobj_unregister;
1722
1723 /* For shrinker support */
1724 struct list_head s_list;
1725 struct mutex umount_mutex;
1726 unsigned int shrinker_run_no;
1727
1728 /* For multi devices */
1729 int s_ndevs; /* number of devices */
1730 struct f2fs_dev_info *devs; /* for device list */
1731 unsigned int dirty_device; /* for checkpoint data flush */
1732 spinlock_t dev_lock; /* protect dirty_device */
1733 bool aligned_blksize; /* all devices has the same logical blksize */
1734
1735 /* For write statistics */
1736 u64 sectors_written_start;
1737 u64 kbytes_written;
1738
1739 /* Reference to checksum algorithm driver via cryptoapi */
1740 struct crypto_shash *s_chksum_driver;
1741
1742 /* Precomputed FS UUID checksum for seeding other checksums */
1743 __u32 s_chksum_seed;
1744
1745 struct workqueue_struct *post_read_wq; /* post read workqueue */
1746
1747 /*
1748 * If we are in irq context, let's update error information into
1749 * on-disk superblock in the work.
1750 */
1751 struct work_struct s_error_work;
1752 unsigned char errors[MAX_F2FS_ERRORS]; /* error flags */
1753 unsigned char stop_reason[MAX_STOP_REASON]; /* stop reason */
1754 spinlock_t error_lock; /* protect errors/stop_reason array */
1755 bool error_dirty; /* errors of sb is dirty */
1756
1757 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1758 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1759
1760 /* For reclaimed segs statistics per each GC mode */
1761 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1762 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1763
1764 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1765
1766 int max_fragment_chunk; /* max chunk size for block fragmentation mode */
1767 int max_fragment_hole; /* max hole size for block fragmentation mode */
1768
1769 /* For atomic write statistics */
1770 atomic64_t current_atomic_write;
1771 s64 peak_atomic_write;
1772 u64 committed_atomic_block;
1773 u64 revoked_atomic_block;
1774
1775 #ifdef CONFIG_F2FS_FS_COMPRESSION
1776 struct kmem_cache *page_array_slab; /* page array entry */
1777 unsigned int page_array_slab_size; /* default page array slab size */
1778
1779 /* For runtime compression statistics */
1780 u64 compr_written_block;
1781 u64 compr_saved_block;
1782 u32 compr_new_inode;
1783
1784 /* For compressed block cache */
1785 struct inode *compress_inode; /* cache compressed blocks */
1786 unsigned int compress_percent; /* cache page percentage */
1787 unsigned int compress_watermark; /* cache page watermark */
1788 atomic_t compress_page_hit; /* cache hit count */
1789 #endif
1790
1791 #ifdef CONFIG_F2FS_IOSTAT
1792 /* For app/fs IO statistics */
1793 spinlock_t iostat_lock;
1794 unsigned long long iostat_count[NR_IO_TYPE];
1795 unsigned long long iostat_bytes[NR_IO_TYPE];
1796 unsigned long long prev_iostat_bytes[NR_IO_TYPE];
1797 bool iostat_enable;
1798 unsigned long iostat_next_period;
1799 unsigned int iostat_period_ms;
1800
1801 /* For io latency related statistics info in one iostat period */
1802 spinlock_t iostat_lat_lock;
1803 struct iostat_lat_info *iostat_io_lat;
1804 #endif
1805 };
1806
1807 /* Definitions to access f2fs_sb_info */
1808 #define BLKS_PER_SEG(sbi) \
1809 ((sbi)->blocks_per_seg)
1810 #define BLKS_PER_SEC(sbi) \
1811 ((sbi)->segs_per_sec << (sbi)->log_blocks_per_seg)
1812 #define SEGS_PER_SEC(sbi) \
1813 ((sbi)->segs_per_sec)
1814
1815 __printf(3, 4)
1816 void f2fs_printk(struct f2fs_sb_info *sbi, bool limit_rate, const char *fmt, ...);
1817
1818 #define f2fs_err(sbi, fmt, ...) \
1819 f2fs_printk(sbi, false, KERN_ERR fmt, ##__VA_ARGS__)
1820 #define f2fs_warn(sbi, fmt, ...) \
1821 f2fs_printk(sbi, false, KERN_WARNING fmt, ##__VA_ARGS__)
1822 #define f2fs_notice(sbi, fmt, ...) \
1823 f2fs_printk(sbi, false, KERN_NOTICE fmt, ##__VA_ARGS__)
1824 #define f2fs_info(sbi, fmt, ...) \
1825 f2fs_printk(sbi, false, KERN_INFO fmt, ##__VA_ARGS__)
1826 #define f2fs_debug(sbi, fmt, ...) \
1827 f2fs_printk(sbi, false, KERN_DEBUG fmt, ##__VA_ARGS__)
1828
1829 #define f2fs_err_ratelimited(sbi, fmt, ...) \
1830 f2fs_printk(sbi, true, KERN_ERR fmt, ##__VA_ARGS__)
1831 #define f2fs_warn_ratelimited(sbi, fmt, ...) \
1832 f2fs_printk(sbi, true, KERN_WARNING fmt, ##__VA_ARGS__)
1833 #define f2fs_info_ratelimited(sbi, fmt, ...) \
1834 f2fs_printk(sbi, true, KERN_INFO fmt, ##__VA_ARGS__)
1835
1836 #ifdef CONFIG_F2FS_FAULT_INJECTION
1837 #define time_to_inject(sbi, type) __time_to_inject(sbi, type, __func__, \
1838 __builtin_return_address(0))
__time_to_inject(struct f2fs_sb_info * sbi,int type,const char * func,const char * parent_func)1839 static inline bool __time_to_inject(struct f2fs_sb_info *sbi, int type,
1840 const char *func, const char *parent_func)
1841 {
1842 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1843
1844 if (!ffi->inject_rate)
1845 return false;
1846
1847 if (!IS_FAULT_SET(ffi, type))
1848 return false;
1849
1850 atomic_inc(&ffi->inject_ops);
1851 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1852 atomic_set(&ffi->inject_ops, 0);
1853 f2fs_info_ratelimited(sbi, "inject %s in %s of %pS",
1854 f2fs_fault_name[type], func, parent_func);
1855 return true;
1856 }
1857 return false;
1858 }
1859 #else
time_to_inject(struct f2fs_sb_info * sbi,int type)1860 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1861 {
1862 return false;
1863 }
1864 #endif
1865
1866 /*
1867 * Test if the mounted volume is a multi-device volume.
1868 * - For a single regular disk volume, sbi->s_ndevs is 0.
1869 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1870 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1871 */
f2fs_is_multi_device(struct f2fs_sb_info * sbi)1872 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1873 {
1874 return sbi->s_ndevs > 1;
1875 }
1876
f2fs_update_time(struct f2fs_sb_info * sbi,int type)1877 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1878 {
1879 unsigned long now = jiffies;
1880
1881 sbi->last_time[type] = now;
1882
1883 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1884 if (type == REQ_TIME) {
1885 sbi->last_time[DISCARD_TIME] = now;
1886 sbi->last_time[GC_TIME] = now;
1887 }
1888 }
1889
f2fs_time_over(struct f2fs_sb_info * sbi,int type)1890 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1891 {
1892 unsigned long interval = sbi->interval_time[type] * HZ;
1893
1894 return time_after(jiffies, sbi->last_time[type] + interval);
1895 }
1896
f2fs_time_to_wait(struct f2fs_sb_info * sbi,int type)1897 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1898 int type)
1899 {
1900 unsigned long interval = sbi->interval_time[type] * HZ;
1901 unsigned int wait_ms = 0;
1902 long delta;
1903
1904 delta = (sbi->last_time[type] + interval) - jiffies;
1905 if (delta > 0)
1906 wait_ms = jiffies_to_msecs(delta);
1907
1908 return wait_ms;
1909 }
1910
1911 /*
1912 * Inline functions
1913 */
__f2fs_crc32(struct f2fs_sb_info * sbi,u32 crc,const void * address,unsigned int length)1914 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1915 const void *address, unsigned int length)
1916 {
1917 struct {
1918 struct shash_desc shash;
1919 char ctx[4];
1920 } desc;
1921 int err;
1922
1923 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1924
1925 desc.shash.tfm = sbi->s_chksum_driver;
1926 *(u32 *)desc.ctx = crc;
1927
1928 err = crypto_shash_update(&desc.shash, address, length);
1929 BUG_ON(err);
1930
1931 return *(u32 *)desc.ctx;
1932 }
1933
f2fs_crc32(struct f2fs_sb_info * sbi,const void * address,unsigned int length)1934 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1935 unsigned int length)
1936 {
1937 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1938 }
1939
f2fs_crc_valid(struct f2fs_sb_info * sbi,__u32 blk_crc,void * buf,size_t buf_size)1940 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1941 void *buf, size_t buf_size)
1942 {
1943 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1944 }
1945
f2fs_chksum(struct f2fs_sb_info * sbi,u32 crc,const void * address,unsigned int length)1946 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1947 const void *address, unsigned int length)
1948 {
1949 return __f2fs_crc32(sbi, crc, address, length);
1950 }
1951
F2FS_I(struct inode * inode)1952 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1953 {
1954 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1955 }
1956
F2FS_SB(struct super_block * sb)1957 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1958 {
1959 return sb->s_fs_info;
1960 }
1961
F2FS_I_SB(struct inode * inode)1962 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1963 {
1964 return F2FS_SB(inode->i_sb);
1965 }
1966
F2FS_M_SB(struct address_space * mapping)1967 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1968 {
1969 return F2FS_I_SB(mapping->host);
1970 }
1971
F2FS_P_SB(struct page * page)1972 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1973 {
1974 return F2FS_M_SB(page_file_mapping(page));
1975 }
1976
F2FS_RAW_SUPER(struct f2fs_sb_info * sbi)1977 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1978 {
1979 return (struct f2fs_super_block *)(sbi->raw_super);
1980 }
1981
F2FS_CKPT(struct f2fs_sb_info * sbi)1982 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1983 {
1984 return (struct f2fs_checkpoint *)(sbi->ckpt);
1985 }
1986
F2FS_NODE(struct page * page)1987 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1988 {
1989 return (struct f2fs_node *)page_address(page);
1990 }
1991
F2FS_INODE(struct page * page)1992 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1993 {
1994 return &((struct f2fs_node *)page_address(page))->i;
1995 }
1996
NM_I(struct f2fs_sb_info * sbi)1997 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1998 {
1999 return (struct f2fs_nm_info *)(sbi->nm_info);
2000 }
2001
SM_I(struct f2fs_sb_info * sbi)2002 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
2003 {
2004 return (struct f2fs_sm_info *)(sbi->sm_info);
2005 }
2006
SIT_I(struct f2fs_sb_info * sbi)2007 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
2008 {
2009 return (struct sit_info *)(SM_I(sbi)->sit_info);
2010 }
2011
FREE_I(struct f2fs_sb_info * sbi)2012 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
2013 {
2014 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
2015 }
2016
DIRTY_I(struct f2fs_sb_info * sbi)2017 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
2018 {
2019 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
2020 }
2021
META_MAPPING(struct f2fs_sb_info * sbi)2022 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
2023 {
2024 return sbi->meta_inode->i_mapping;
2025 }
2026
NODE_MAPPING(struct f2fs_sb_info * sbi)2027 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
2028 {
2029 return sbi->node_inode->i_mapping;
2030 }
2031
is_sbi_flag_set(struct f2fs_sb_info * sbi,unsigned int type)2032 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2033 {
2034 return test_bit(type, &sbi->s_flag);
2035 }
2036
set_sbi_flag(struct f2fs_sb_info * sbi,unsigned int type)2037 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2038 {
2039 set_bit(type, &sbi->s_flag);
2040 }
2041
clear_sbi_flag(struct f2fs_sb_info * sbi,unsigned int type)2042 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2043 {
2044 clear_bit(type, &sbi->s_flag);
2045 }
2046
cur_cp_version(struct f2fs_checkpoint * cp)2047 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2048 {
2049 return le64_to_cpu(cp->checkpoint_ver);
2050 }
2051
f2fs_qf_ino(struct super_block * sb,int type)2052 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2053 {
2054 if (type < F2FS_MAX_QUOTAS)
2055 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2056 return 0;
2057 }
2058
cur_cp_crc(struct f2fs_checkpoint * cp)2059 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2060 {
2061 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2062 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2063 }
2064
__is_set_ckpt_flags(struct f2fs_checkpoint * cp,unsigned int f)2065 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2066 {
2067 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2068
2069 return ckpt_flags & f;
2070 }
2071
is_set_ckpt_flags(struct f2fs_sb_info * sbi,unsigned int f)2072 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2073 {
2074 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2075 }
2076
__set_ckpt_flags(struct f2fs_checkpoint * cp,unsigned int f)2077 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2078 {
2079 unsigned int ckpt_flags;
2080
2081 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2082 ckpt_flags |= f;
2083 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2084 }
2085
set_ckpt_flags(struct f2fs_sb_info * sbi,unsigned int f)2086 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2087 {
2088 unsigned long flags;
2089
2090 spin_lock_irqsave(&sbi->cp_lock, flags);
2091 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2092 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2093 }
2094
__clear_ckpt_flags(struct f2fs_checkpoint * cp,unsigned int f)2095 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2096 {
2097 unsigned int ckpt_flags;
2098
2099 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2100 ckpt_flags &= (~f);
2101 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2102 }
2103
clear_ckpt_flags(struct f2fs_sb_info * sbi,unsigned int f)2104 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2105 {
2106 unsigned long flags;
2107
2108 spin_lock_irqsave(&sbi->cp_lock, flags);
2109 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2110 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2111 }
2112
2113 #define init_f2fs_rwsem(sem) \
2114 do { \
2115 static struct lock_class_key __key; \
2116 \
2117 __init_f2fs_rwsem((sem), #sem, &__key); \
2118 } while (0)
2119
__init_f2fs_rwsem(struct f2fs_rwsem * sem,const char * sem_name,struct lock_class_key * key)2120 static inline void __init_f2fs_rwsem(struct f2fs_rwsem *sem,
2121 const char *sem_name, struct lock_class_key *key)
2122 {
2123 __init_rwsem(&sem->internal_rwsem, sem_name, key);
2124 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2125 init_waitqueue_head(&sem->read_waiters);
2126 #endif
2127 }
2128
f2fs_rwsem_is_locked(struct f2fs_rwsem * sem)2129 static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
2130 {
2131 return rwsem_is_locked(&sem->internal_rwsem);
2132 }
2133
f2fs_rwsem_is_contended(struct f2fs_rwsem * sem)2134 static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
2135 {
2136 return rwsem_is_contended(&sem->internal_rwsem);
2137 }
2138
f2fs_down_read(struct f2fs_rwsem * sem)2139 static inline void f2fs_down_read(struct f2fs_rwsem *sem)
2140 {
2141 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2142 wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
2143 #else
2144 down_read(&sem->internal_rwsem);
2145 #endif
2146 }
2147
f2fs_down_read_trylock(struct f2fs_rwsem * sem)2148 static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
2149 {
2150 return down_read_trylock(&sem->internal_rwsem);
2151 }
2152
f2fs_up_read(struct f2fs_rwsem * sem)2153 static inline void f2fs_up_read(struct f2fs_rwsem *sem)
2154 {
2155 up_read(&sem->internal_rwsem);
2156 }
2157
f2fs_down_write(struct f2fs_rwsem * sem)2158 static inline void f2fs_down_write(struct f2fs_rwsem *sem)
2159 {
2160 down_write(&sem->internal_rwsem);
2161 }
2162
2163 #ifdef CONFIG_DEBUG_LOCK_ALLOC
f2fs_down_read_nested(struct f2fs_rwsem * sem,int subclass)2164 static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
2165 {
2166 down_read_nested(&sem->internal_rwsem, subclass);
2167 }
2168
f2fs_down_write_nested(struct f2fs_rwsem * sem,int subclass)2169 static inline void f2fs_down_write_nested(struct f2fs_rwsem *sem, int subclass)
2170 {
2171 down_write_nested(&sem->internal_rwsem, subclass);
2172 }
2173 #else
2174 #define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
2175 #define f2fs_down_write_nested(sem, subclass) f2fs_down_write(sem)
2176 #endif
2177
f2fs_down_write_trylock(struct f2fs_rwsem * sem)2178 static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
2179 {
2180 return down_write_trylock(&sem->internal_rwsem);
2181 }
2182
f2fs_up_write(struct f2fs_rwsem * sem)2183 static inline void f2fs_up_write(struct f2fs_rwsem *sem)
2184 {
2185 up_write(&sem->internal_rwsem);
2186 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2187 wake_up_all(&sem->read_waiters);
2188 #endif
2189 }
2190
f2fs_lock_op(struct f2fs_sb_info * sbi)2191 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2192 {
2193 f2fs_down_read(&sbi->cp_rwsem);
2194 }
2195
f2fs_trylock_op(struct f2fs_sb_info * sbi)2196 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2197 {
2198 if (time_to_inject(sbi, FAULT_LOCK_OP))
2199 return 0;
2200 return f2fs_down_read_trylock(&sbi->cp_rwsem);
2201 }
2202
f2fs_unlock_op(struct f2fs_sb_info * sbi)2203 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2204 {
2205 f2fs_up_read(&sbi->cp_rwsem);
2206 }
2207
f2fs_lock_all(struct f2fs_sb_info * sbi)2208 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2209 {
2210 f2fs_down_write(&sbi->cp_rwsem);
2211 }
2212
f2fs_unlock_all(struct f2fs_sb_info * sbi)2213 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2214 {
2215 f2fs_up_write(&sbi->cp_rwsem);
2216 }
2217
__get_cp_reason(struct f2fs_sb_info * sbi)2218 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2219 {
2220 int reason = CP_SYNC;
2221
2222 if (test_opt(sbi, FASTBOOT))
2223 reason = CP_FASTBOOT;
2224 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2225 reason = CP_UMOUNT;
2226 return reason;
2227 }
2228
__remain_node_summaries(int reason)2229 static inline bool __remain_node_summaries(int reason)
2230 {
2231 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2232 }
2233
__exist_node_summaries(struct f2fs_sb_info * sbi)2234 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2235 {
2236 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2237 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2238 }
2239
2240 /*
2241 * Check whether the inode has blocks or not
2242 */
F2FS_HAS_BLOCKS(struct inode * inode)2243 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2244 {
2245 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2246
2247 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2248 }
2249
f2fs_has_xattr_block(unsigned int ofs)2250 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2251 {
2252 return ofs == XATTR_NODE_OFFSET;
2253 }
2254
__allow_reserved_blocks(struct f2fs_sb_info * sbi,struct inode * inode,bool cap)2255 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2256 struct inode *inode, bool cap)
2257 {
2258 if (!inode)
2259 return true;
2260 if (!test_opt(sbi, RESERVE_ROOT))
2261 return false;
2262 if (IS_NOQUOTA(inode))
2263 return true;
2264 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2265 return true;
2266 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2267 in_group_p(F2FS_OPTION(sbi).s_resgid))
2268 return true;
2269 if (cap && capable(CAP_SYS_RESOURCE))
2270 return true;
2271 return false;
2272 }
2273
get_available_block_count(struct f2fs_sb_info * sbi,struct inode * inode,bool cap)2274 static inline unsigned int get_available_block_count(struct f2fs_sb_info *sbi,
2275 struct inode *inode, bool cap)
2276 {
2277 block_t avail_user_block_count;
2278
2279 avail_user_block_count = sbi->user_block_count -
2280 sbi->current_reserved_blocks;
2281
2282 if (!__allow_reserved_blocks(sbi, inode, cap))
2283 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2284
2285 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2286 if (avail_user_block_count > sbi->unusable_block_count)
2287 avail_user_block_count -= sbi->unusable_block_count;
2288 else
2289 avail_user_block_count = 0;
2290 }
2291
2292 return avail_user_block_count;
2293 }
2294
2295 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
inc_valid_block_count(struct f2fs_sb_info * sbi,struct inode * inode,blkcnt_t * count,bool partial)2296 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2297 struct inode *inode, blkcnt_t *count, bool partial)
2298 {
2299 long long diff = 0, release = 0;
2300 block_t avail_user_block_count;
2301 int ret;
2302
2303 ret = dquot_reserve_block(inode, *count);
2304 if (ret)
2305 return ret;
2306
2307 if (time_to_inject(sbi, FAULT_BLOCK)) {
2308 release = *count;
2309 goto release_quota;
2310 }
2311
2312 /*
2313 * let's increase this in prior to actual block count change in order
2314 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2315 */
2316 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2317
2318 spin_lock(&sbi->stat_lock);
2319
2320 avail_user_block_count = get_available_block_count(sbi, inode, true);
2321 diff = (long long)sbi->total_valid_block_count + *count -
2322 avail_user_block_count;
2323 if (unlikely(diff > 0)) {
2324 if (!partial) {
2325 spin_unlock(&sbi->stat_lock);
2326 release = *count;
2327 goto enospc;
2328 }
2329 if (diff > *count)
2330 diff = *count;
2331 *count -= diff;
2332 release = diff;
2333 if (!*count) {
2334 spin_unlock(&sbi->stat_lock);
2335 goto enospc;
2336 }
2337 }
2338 sbi->total_valid_block_count += (block_t)(*count);
2339
2340 spin_unlock(&sbi->stat_lock);
2341
2342 if (unlikely(release)) {
2343 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2344 dquot_release_reservation_block(inode, release);
2345 }
2346 f2fs_i_blocks_write(inode, *count, true, true);
2347 return 0;
2348
2349 enospc:
2350 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2351 release_quota:
2352 dquot_release_reservation_block(inode, release);
2353 return -ENOSPC;
2354 }
2355
2356 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
2357 static inline bool page_private_##name(struct page *page) \
2358 { \
2359 return PagePrivate(page) && \
2360 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
2361 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
2362 }
2363
2364 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
2365 static inline void set_page_private_##name(struct page *page) \
2366 { \
2367 if (!PagePrivate(page)) \
2368 attach_page_private(page, (void *)0); \
2369 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
2370 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
2371 }
2372
2373 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
2374 static inline void clear_page_private_##name(struct page *page) \
2375 { \
2376 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
2377 if (page_private(page) == BIT(PAGE_PRIVATE_NOT_POINTER)) \
2378 detach_page_private(page); \
2379 }
2380
2381 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
2382 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
2383 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
2384
2385 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
2386 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
2387 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
2388
2389 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
2390 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
2391 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
2392
get_page_private_data(struct page * page)2393 static inline unsigned long get_page_private_data(struct page *page)
2394 {
2395 unsigned long data = page_private(page);
2396
2397 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
2398 return 0;
2399 return data >> PAGE_PRIVATE_MAX;
2400 }
2401
set_page_private_data(struct page * page,unsigned long data)2402 static inline void set_page_private_data(struct page *page, unsigned long data)
2403 {
2404 if (!PagePrivate(page))
2405 attach_page_private(page, (void *)0);
2406 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
2407 page_private(page) |= data << PAGE_PRIVATE_MAX;
2408 }
2409
clear_page_private_data(struct page * page)2410 static inline void clear_page_private_data(struct page *page)
2411 {
2412 page_private(page) &= GENMASK(PAGE_PRIVATE_MAX - 1, 0);
2413 if (page_private(page) == BIT(PAGE_PRIVATE_NOT_POINTER))
2414 detach_page_private(page);
2415 }
2416
clear_page_private_all(struct page * page)2417 static inline void clear_page_private_all(struct page *page)
2418 {
2419 clear_page_private_data(page);
2420 clear_page_private_reference(page);
2421 clear_page_private_gcing(page);
2422 clear_page_private_inline(page);
2423
2424 f2fs_bug_on(F2FS_P_SB(page), page_private(page));
2425 }
2426
dec_valid_block_count(struct f2fs_sb_info * sbi,struct inode * inode,block_t count)2427 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2428 struct inode *inode,
2429 block_t count)
2430 {
2431 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2432
2433 spin_lock(&sbi->stat_lock);
2434 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2435 sbi->total_valid_block_count -= (block_t)count;
2436 if (sbi->reserved_blocks &&
2437 sbi->current_reserved_blocks < sbi->reserved_blocks)
2438 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2439 sbi->current_reserved_blocks + count);
2440 spin_unlock(&sbi->stat_lock);
2441 if (unlikely(inode->i_blocks < sectors)) {
2442 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2443 inode->i_ino,
2444 (unsigned long long)inode->i_blocks,
2445 (unsigned long long)sectors);
2446 set_sbi_flag(sbi, SBI_NEED_FSCK);
2447 return;
2448 }
2449 f2fs_i_blocks_write(inode, count, false, true);
2450 }
2451
inc_page_count(struct f2fs_sb_info * sbi,int count_type)2452 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2453 {
2454 atomic_inc(&sbi->nr_pages[count_type]);
2455
2456 if (count_type == F2FS_DIRTY_DENTS ||
2457 count_type == F2FS_DIRTY_NODES ||
2458 count_type == F2FS_DIRTY_META ||
2459 count_type == F2FS_DIRTY_QDATA ||
2460 count_type == F2FS_DIRTY_IMETA)
2461 set_sbi_flag(sbi, SBI_IS_DIRTY);
2462 }
2463
inode_inc_dirty_pages(struct inode * inode)2464 static inline void inode_inc_dirty_pages(struct inode *inode)
2465 {
2466 atomic_inc(&F2FS_I(inode)->dirty_pages);
2467 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2468 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2469 if (IS_NOQUOTA(inode))
2470 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2471 }
2472
dec_page_count(struct f2fs_sb_info * sbi,int count_type)2473 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2474 {
2475 atomic_dec(&sbi->nr_pages[count_type]);
2476 }
2477
inode_dec_dirty_pages(struct inode * inode)2478 static inline void inode_dec_dirty_pages(struct inode *inode)
2479 {
2480 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2481 !S_ISLNK(inode->i_mode))
2482 return;
2483
2484 atomic_dec(&F2FS_I(inode)->dirty_pages);
2485 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2486 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2487 if (IS_NOQUOTA(inode))
2488 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2489 }
2490
inc_atomic_write_cnt(struct inode * inode)2491 static inline void inc_atomic_write_cnt(struct inode *inode)
2492 {
2493 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2494 struct f2fs_inode_info *fi = F2FS_I(inode);
2495 u64 current_write;
2496
2497 fi->atomic_write_cnt++;
2498 atomic64_inc(&sbi->current_atomic_write);
2499 current_write = atomic64_read(&sbi->current_atomic_write);
2500 if (current_write > sbi->peak_atomic_write)
2501 sbi->peak_atomic_write = current_write;
2502 }
2503
release_atomic_write_cnt(struct inode * inode)2504 static inline void release_atomic_write_cnt(struct inode *inode)
2505 {
2506 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2507 struct f2fs_inode_info *fi = F2FS_I(inode);
2508
2509 atomic64_sub(fi->atomic_write_cnt, &sbi->current_atomic_write);
2510 fi->atomic_write_cnt = 0;
2511 }
2512
get_pages(struct f2fs_sb_info * sbi,int count_type)2513 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2514 {
2515 return atomic_read(&sbi->nr_pages[count_type]);
2516 }
2517
get_dirty_pages(struct inode * inode)2518 static inline int get_dirty_pages(struct inode *inode)
2519 {
2520 return atomic_read(&F2FS_I(inode)->dirty_pages);
2521 }
2522
get_blocktype_secs(struct f2fs_sb_info * sbi,int block_type)2523 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2524 {
2525 return div_u64(get_pages(sbi, block_type) + BLKS_PER_SEC(sbi) - 1,
2526 BLKS_PER_SEC(sbi));
2527 }
2528
valid_user_blocks(struct f2fs_sb_info * sbi)2529 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2530 {
2531 return sbi->total_valid_block_count;
2532 }
2533
discard_blocks(struct f2fs_sb_info * sbi)2534 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2535 {
2536 return sbi->discard_blks;
2537 }
2538
__bitmap_size(struct f2fs_sb_info * sbi,int flag)2539 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2540 {
2541 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2542
2543 /* return NAT or SIT bitmap */
2544 if (flag == NAT_BITMAP)
2545 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2546 else if (flag == SIT_BITMAP)
2547 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2548
2549 return 0;
2550 }
2551
__cp_payload(struct f2fs_sb_info * sbi)2552 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2553 {
2554 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2555 }
2556
__bitmap_ptr(struct f2fs_sb_info * sbi,int flag)2557 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2558 {
2559 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2560 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2561 int offset;
2562
2563 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2564 offset = (flag == SIT_BITMAP) ?
2565 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2566 /*
2567 * if large_nat_bitmap feature is enabled, leave checksum
2568 * protection for all nat/sit bitmaps.
2569 */
2570 return tmp_ptr + offset + sizeof(__le32);
2571 }
2572
2573 if (__cp_payload(sbi) > 0) {
2574 if (flag == NAT_BITMAP)
2575 return tmp_ptr;
2576 else
2577 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2578 } else {
2579 offset = (flag == NAT_BITMAP) ?
2580 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2581 return tmp_ptr + offset;
2582 }
2583 }
2584
__start_cp_addr(struct f2fs_sb_info * sbi)2585 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2586 {
2587 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2588
2589 if (sbi->cur_cp_pack == 2)
2590 start_addr += BLKS_PER_SEG(sbi);
2591 return start_addr;
2592 }
2593
__start_cp_next_addr(struct f2fs_sb_info * sbi)2594 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2595 {
2596 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2597
2598 if (sbi->cur_cp_pack == 1)
2599 start_addr += BLKS_PER_SEG(sbi);
2600 return start_addr;
2601 }
2602
__set_cp_next_pack(struct f2fs_sb_info * sbi)2603 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2604 {
2605 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2606 }
2607
__start_sum_addr(struct f2fs_sb_info * sbi)2608 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2609 {
2610 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2611 }
2612
2613 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
inc_valid_node_count(struct f2fs_sb_info * sbi,struct inode * inode,bool is_inode)2614 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2615 struct inode *inode, bool is_inode)
2616 {
2617 block_t valid_block_count;
2618 unsigned int valid_node_count;
2619 unsigned int avail_user_block_count;
2620 int err;
2621
2622 if (is_inode) {
2623 if (inode) {
2624 err = dquot_alloc_inode(inode);
2625 if (err)
2626 return err;
2627 }
2628 } else {
2629 err = dquot_reserve_block(inode, 1);
2630 if (err)
2631 return err;
2632 }
2633
2634 if (time_to_inject(sbi, FAULT_BLOCK))
2635 goto enospc;
2636
2637 spin_lock(&sbi->stat_lock);
2638
2639 valid_block_count = sbi->total_valid_block_count + 1;
2640 avail_user_block_count = get_available_block_count(sbi, inode, false);
2641
2642 if (unlikely(valid_block_count > avail_user_block_count)) {
2643 spin_unlock(&sbi->stat_lock);
2644 goto enospc;
2645 }
2646
2647 valid_node_count = sbi->total_valid_node_count + 1;
2648 if (unlikely(valid_node_count > sbi->total_node_count)) {
2649 spin_unlock(&sbi->stat_lock);
2650 goto enospc;
2651 }
2652
2653 sbi->total_valid_node_count++;
2654 sbi->total_valid_block_count++;
2655 spin_unlock(&sbi->stat_lock);
2656
2657 if (inode) {
2658 if (is_inode)
2659 f2fs_mark_inode_dirty_sync(inode, true);
2660 else
2661 f2fs_i_blocks_write(inode, 1, true, true);
2662 }
2663
2664 percpu_counter_inc(&sbi->alloc_valid_block_count);
2665 return 0;
2666
2667 enospc:
2668 if (is_inode) {
2669 if (inode)
2670 dquot_free_inode(inode);
2671 } else {
2672 dquot_release_reservation_block(inode, 1);
2673 }
2674 return -ENOSPC;
2675 }
2676
dec_valid_node_count(struct f2fs_sb_info * sbi,struct inode * inode,bool is_inode)2677 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2678 struct inode *inode, bool is_inode)
2679 {
2680 spin_lock(&sbi->stat_lock);
2681
2682 if (unlikely(!sbi->total_valid_block_count ||
2683 !sbi->total_valid_node_count)) {
2684 f2fs_warn(sbi, "dec_valid_node_count: inconsistent block counts, total_valid_block:%u, total_valid_node:%u",
2685 sbi->total_valid_block_count,
2686 sbi->total_valid_node_count);
2687 set_sbi_flag(sbi, SBI_NEED_FSCK);
2688 } else {
2689 sbi->total_valid_block_count--;
2690 sbi->total_valid_node_count--;
2691 }
2692
2693 if (sbi->reserved_blocks &&
2694 sbi->current_reserved_blocks < sbi->reserved_blocks)
2695 sbi->current_reserved_blocks++;
2696
2697 spin_unlock(&sbi->stat_lock);
2698
2699 if (is_inode) {
2700 dquot_free_inode(inode);
2701 } else {
2702 if (unlikely(inode->i_blocks == 0)) {
2703 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2704 inode->i_ino,
2705 (unsigned long long)inode->i_blocks);
2706 set_sbi_flag(sbi, SBI_NEED_FSCK);
2707 return;
2708 }
2709 f2fs_i_blocks_write(inode, 1, false, true);
2710 }
2711 }
2712
valid_node_count(struct f2fs_sb_info * sbi)2713 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2714 {
2715 return sbi->total_valid_node_count;
2716 }
2717
inc_valid_inode_count(struct f2fs_sb_info * sbi)2718 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2719 {
2720 percpu_counter_inc(&sbi->total_valid_inode_count);
2721 }
2722
dec_valid_inode_count(struct f2fs_sb_info * sbi)2723 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2724 {
2725 percpu_counter_dec(&sbi->total_valid_inode_count);
2726 }
2727
valid_inode_count(struct f2fs_sb_info * sbi)2728 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2729 {
2730 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2731 }
2732
f2fs_grab_cache_page(struct address_space * mapping,pgoff_t index,bool for_write)2733 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2734 pgoff_t index, bool for_write)
2735 {
2736 struct page *page;
2737 unsigned int flags;
2738
2739 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2740 if (!for_write)
2741 page = find_get_page_flags(mapping, index,
2742 FGP_LOCK | FGP_ACCESSED);
2743 else
2744 page = find_lock_page(mapping, index);
2745 if (page)
2746 return page;
2747
2748 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC))
2749 return NULL;
2750 }
2751
2752 if (!for_write)
2753 return grab_cache_page(mapping, index);
2754
2755 flags = memalloc_nofs_save();
2756 page = grab_cache_page_write_begin(mapping, index);
2757 memalloc_nofs_restore(flags);
2758
2759 return page;
2760 }
2761
f2fs_pagecache_get_page(struct address_space * mapping,pgoff_t index,fgf_t fgp_flags,gfp_t gfp_mask)2762 static inline struct page *f2fs_pagecache_get_page(
2763 struct address_space *mapping, pgoff_t index,
2764 fgf_t fgp_flags, gfp_t gfp_mask)
2765 {
2766 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET))
2767 return NULL;
2768
2769 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2770 }
2771
f2fs_put_page(struct page * page,int unlock)2772 static inline void f2fs_put_page(struct page *page, int unlock)
2773 {
2774 if (!page)
2775 return;
2776
2777 if (unlock) {
2778 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2779 unlock_page(page);
2780 }
2781 put_page(page);
2782 }
2783
f2fs_put_dnode(struct dnode_of_data * dn)2784 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2785 {
2786 if (dn->node_page)
2787 f2fs_put_page(dn->node_page, 1);
2788 if (dn->inode_page && dn->node_page != dn->inode_page)
2789 f2fs_put_page(dn->inode_page, 0);
2790 dn->node_page = NULL;
2791 dn->inode_page = NULL;
2792 }
2793
f2fs_kmem_cache_create(const char * name,size_t size)2794 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2795 size_t size)
2796 {
2797 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2798 }
2799
f2fs_kmem_cache_alloc_nofail(struct kmem_cache * cachep,gfp_t flags)2800 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2801 gfp_t flags)
2802 {
2803 void *entry;
2804
2805 entry = kmem_cache_alloc(cachep, flags);
2806 if (!entry)
2807 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2808 return entry;
2809 }
2810
f2fs_kmem_cache_alloc(struct kmem_cache * cachep,gfp_t flags,bool nofail,struct f2fs_sb_info * sbi)2811 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2812 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2813 {
2814 if (nofail)
2815 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2816
2817 if (time_to_inject(sbi, FAULT_SLAB_ALLOC))
2818 return NULL;
2819
2820 return kmem_cache_alloc(cachep, flags);
2821 }
2822
is_inflight_io(struct f2fs_sb_info * sbi,int type)2823 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2824 {
2825 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2826 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2827 get_pages(sbi, F2FS_WB_CP_DATA) ||
2828 get_pages(sbi, F2FS_DIO_READ) ||
2829 get_pages(sbi, F2FS_DIO_WRITE))
2830 return true;
2831
2832 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2833 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2834 return true;
2835
2836 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2837 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2838 return true;
2839 return false;
2840 }
2841
is_idle(struct f2fs_sb_info * sbi,int type)2842 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2843 {
2844 if (sbi->gc_mode == GC_URGENT_HIGH)
2845 return true;
2846
2847 if (is_inflight_io(sbi, type))
2848 return false;
2849
2850 if (sbi->gc_mode == GC_URGENT_MID)
2851 return true;
2852
2853 if (sbi->gc_mode == GC_URGENT_LOW &&
2854 (type == DISCARD_TIME || type == GC_TIME))
2855 return true;
2856
2857 return f2fs_time_over(sbi, type);
2858 }
2859
f2fs_radix_tree_insert(struct radix_tree_root * root,unsigned long index,void * item)2860 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2861 unsigned long index, void *item)
2862 {
2863 while (radix_tree_insert(root, index, item))
2864 cond_resched();
2865 }
2866
2867 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2868
IS_INODE(struct page * page)2869 static inline bool IS_INODE(struct page *page)
2870 {
2871 struct f2fs_node *p = F2FS_NODE(page);
2872
2873 return RAW_IS_INODE(p);
2874 }
2875
offset_in_addr(struct f2fs_inode * i)2876 static inline int offset_in_addr(struct f2fs_inode *i)
2877 {
2878 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2879 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2880 }
2881
blkaddr_in_node(struct f2fs_node * node)2882 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2883 {
2884 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2885 }
2886
2887 static inline int f2fs_has_extra_attr(struct inode *inode);
data_blkaddr(struct inode * inode,struct page * node_page,unsigned int offset)2888 static inline block_t data_blkaddr(struct inode *inode,
2889 struct page *node_page, unsigned int offset)
2890 {
2891 struct f2fs_node *raw_node;
2892 __le32 *addr_array;
2893 int base = 0;
2894 bool is_inode = IS_INODE(node_page);
2895
2896 raw_node = F2FS_NODE(node_page);
2897
2898 if (is_inode) {
2899 if (!inode)
2900 /* from GC path only */
2901 base = offset_in_addr(&raw_node->i);
2902 else if (f2fs_has_extra_attr(inode))
2903 base = get_extra_isize(inode);
2904 }
2905
2906 addr_array = blkaddr_in_node(raw_node);
2907 return le32_to_cpu(addr_array[base + offset]);
2908 }
2909
f2fs_data_blkaddr(struct dnode_of_data * dn)2910 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2911 {
2912 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2913 }
2914
f2fs_test_bit(unsigned int nr,char * addr)2915 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2916 {
2917 int mask;
2918
2919 addr += (nr >> 3);
2920 mask = BIT(7 - (nr & 0x07));
2921 return mask & *addr;
2922 }
2923
f2fs_set_bit(unsigned int nr,char * addr)2924 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2925 {
2926 int mask;
2927
2928 addr += (nr >> 3);
2929 mask = BIT(7 - (nr & 0x07));
2930 *addr |= mask;
2931 }
2932
f2fs_clear_bit(unsigned int nr,char * addr)2933 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2934 {
2935 int mask;
2936
2937 addr += (nr >> 3);
2938 mask = BIT(7 - (nr & 0x07));
2939 *addr &= ~mask;
2940 }
2941
f2fs_test_and_set_bit(unsigned int nr,char * addr)2942 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2943 {
2944 int mask;
2945 int ret;
2946
2947 addr += (nr >> 3);
2948 mask = BIT(7 - (nr & 0x07));
2949 ret = mask & *addr;
2950 *addr |= mask;
2951 return ret;
2952 }
2953
f2fs_test_and_clear_bit(unsigned int nr,char * addr)2954 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2955 {
2956 int mask;
2957 int ret;
2958
2959 addr += (nr >> 3);
2960 mask = BIT(7 - (nr & 0x07));
2961 ret = mask & *addr;
2962 *addr &= ~mask;
2963 return ret;
2964 }
2965
f2fs_change_bit(unsigned int nr,char * addr)2966 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2967 {
2968 int mask;
2969
2970 addr += (nr >> 3);
2971 mask = BIT(7 - (nr & 0x07));
2972 *addr ^= mask;
2973 }
2974
2975 /*
2976 * On-disk inode flags (f2fs_inode::i_flags)
2977 */
2978 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2979 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2980 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2981 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2982 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2983 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2984 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2985 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2986 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2987 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2988 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2989
2990 #define F2FS_QUOTA_DEFAULT_FL (F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL)
2991
2992 /* Flags that should be inherited by new inodes from their parent. */
2993 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2994 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2995 F2FS_CASEFOLD_FL)
2996
2997 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2998 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2999 F2FS_CASEFOLD_FL))
3000
3001 /* Flags that are appropriate for non-directories/regular files. */
3002 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
3003
f2fs_mask_flags(umode_t mode,__u32 flags)3004 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
3005 {
3006 if (S_ISDIR(mode))
3007 return flags;
3008 else if (S_ISREG(mode))
3009 return flags & F2FS_REG_FLMASK;
3010 else
3011 return flags & F2FS_OTHER_FLMASK;
3012 }
3013
__mark_inode_dirty_flag(struct inode * inode,int flag,bool set)3014 static inline void __mark_inode_dirty_flag(struct inode *inode,
3015 int flag, bool set)
3016 {
3017 switch (flag) {
3018 case FI_INLINE_XATTR:
3019 case FI_INLINE_DATA:
3020 case FI_INLINE_DENTRY:
3021 case FI_NEW_INODE:
3022 if (set)
3023 return;
3024 fallthrough;
3025 case FI_DATA_EXIST:
3026 case FI_INLINE_DOTS:
3027 case FI_PIN_FILE:
3028 case FI_COMPRESS_RELEASED:
3029 case FI_ATOMIC_COMMITTED:
3030 f2fs_mark_inode_dirty_sync(inode, true);
3031 }
3032 }
3033
set_inode_flag(struct inode * inode,int flag)3034 static inline void set_inode_flag(struct inode *inode, int flag)
3035 {
3036 set_bit(flag, F2FS_I(inode)->flags);
3037 __mark_inode_dirty_flag(inode, flag, true);
3038 }
3039
is_inode_flag_set(struct inode * inode,int flag)3040 static inline int is_inode_flag_set(struct inode *inode, int flag)
3041 {
3042 return test_bit(flag, F2FS_I(inode)->flags);
3043 }
3044
clear_inode_flag(struct inode * inode,int flag)3045 static inline void clear_inode_flag(struct inode *inode, int flag)
3046 {
3047 clear_bit(flag, F2FS_I(inode)->flags);
3048 __mark_inode_dirty_flag(inode, flag, false);
3049 }
3050
f2fs_verity_in_progress(struct inode * inode)3051 static inline bool f2fs_verity_in_progress(struct inode *inode)
3052 {
3053 return IS_ENABLED(CONFIG_FS_VERITY) &&
3054 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
3055 }
3056
set_acl_inode(struct inode * inode,umode_t mode)3057 static inline void set_acl_inode(struct inode *inode, umode_t mode)
3058 {
3059 F2FS_I(inode)->i_acl_mode = mode;
3060 set_inode_flag(inode, FI_ACL_MODE);
3061 f2fs_mark_inode_dirty_sync(inode, false);
3062 }
3063
f2fs_i_links_write(struct inode * inode,bool inc)3064 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
3065 {
3066 if (inc)
3067 inc_nlink(inode);
3068 else
3069 drop_nlink(inode);
3070 f2fs_mark_inode_dirty_sync(inode, true);
3071 }
3072
f2fs_i_blocks_write(struct inode * inode,block_t diff,bool add,bool claim)3073 static inline void f2fs_i_blocks_write(struct inode *inode,
3074 block_t diff, bool add, bool claim)
3075 {
3076 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3077 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3078
3079 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
3080 if (add) {
3081 if (claim)
3082 dquot_claim_block(inode, diff);
3083 else
3084 dquot_alloc_block_nofail(inode, diff);
3085 } else {
3086 dquot_free_block(inode, diff);
3087 }
3088
3089 f2fs_mark_inode_dirty_sync(inode, true);
3090 if (clean || recover)
3091 set_inode_flag(inode, FI_AUTO_RECOVER);
3092 }
3093
3094 static inline bool f2fs_is_atomic_file(struct inode *inode);
3095
f2fs_i_size_write(struct inode * inode,loff_t i_size)3096 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
3097 {
3098 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3099 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3100
3101 if (i_size_read(inode) == i_size)
3102 return;
3103
3104 i_size_write(inode, i_size);
3105
3106 if (f2fs_is_atomic_file(inode))
3107 return;
3108
3109 f2fs_mark_inode_dirty_sync(inode, true);
3110 if (clean || recover)
3111 set_inode_flag(inode, FI_AUTO_RECOVER);
3112 }
3113
f2fs_i_depth_write(struct inode * inode,unsigned int depth)3114 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
3115 {
3116 F2FS_I(inode)->i_current_depth = depth;
3117 f2fs_mark_inode_dirty_sync(inode, true);
3118 }
3119
f2fs_i_gc_failures_write(struct inode * inode,unsigned int count)3120 static inline void f2fs_i_gc_failures_write(struct inode *inode,
3121 unsigned int count)
3122 {
3123 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
3124 f2fs_mark_inode_dirty_sync(inode, true);
3125 }
3126
f2fs_i_xnid_write(struct inode * inode,nid_t xnid)3127 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
3128 {
3129 F2FS_I(inode)->i_xattr_nid = xnid;
3130 f2fs_mark_inode_dirty_sync(inode, true);
3131 }
3132
f2fs_i_pino_write(struct inode * inode,nid_t pino)3133 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
3134 {
3135 F2FS_I(inode)->i_pino = pino;
3136 f2fs_mark_inode_dirty_sync(inode, true);
3137 }
3138
get_inline_info(struct inode * inode,struct f2fs_inode * ri)3139 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
3140 {
3141 struct f2fs_inode_info *fi = F2FS_I(inode);
3142
3143 if (ri->i_inline & F2FS_INLINE_XATTR)
3144 set_bit(FI_INLINE_XATTR, fi->flags);
3145 if (ri->i_inline & F2FS_INLINE_DATA)
3146 set_bit(FI_INLINE_DATA, fi->flags);
3147 if (ri->i_inline & F2FS_INLINE_DENTRY)
3148 set_bit(FI_INLINE_DENTRY, fi->flags);
3149 if (ri->i_inline & F2FS_DATA_EXIST)
3150 set_bit(FI_DATA_EXIST, fi->flags);
3151 if (ri->i_inline & F2FS_INLINE_DOTS)
3152 set_bit(FI_INLINE_DOTS, fi->flags);
3153 if (ri->i_inline & F2FS_EXTRA_ATTR)
3154 set_bit(FI_EXTRA_ATTR, fi->flags);
3155 if (ri->i_inline & F2FS_PIN_FILE)
3156 set_bit(FI_PIN_FILE, fi->flags);
3157 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
3158 set_bit(FI_COMPRESS_RELEASED, fi->flags);
3159 }
3160
set_raw_inline(struct inode * inode,struct f2fs_inode * ri)3161 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
3162 {
3163 ri->i_inline = 0;
3164
3165 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
3166 ri->i_inline |= F2FS_INLINE_XATTR;
3167 if (is_inode_flag_set(inode, FI_INLINE_DATA))
3168 ri->i_inline |= F2FS_INLINE_DATA;
3169 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
3170 ri->i_inline |= F2FS_INLINE_DENTRY;
3171 if (is_inode_flag_set(inode, FI_DATA_EXIST))
3172 ri->i_inline |= F2FS_DATA_EXIST;
3173 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
3174 ri->i_inline |= F2FS_INLINE_DOTS;
3175 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
3176 ri->i_inline |= F2FS_EXTRA_ATTR;
3177 if (is_inode_flag_set(inode, FI_PIN_FILE))
3178 ri->i_inline |= F2FS_PIN_FILE;
3179 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
3180 ri->i_inline |= F2FS_COMPRESS_RELEASED;
3181 }
3182
f2fs_has_extra_attr(struct inode * inode)3183 static inline int f2fs_has_extra_attr(struct inode *inode)
3184 {
3185 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
3186 }
3187
f2fs_has_inline_xattr(struct inode * inode)3188 static inline int f2fs_has_inline_xattr(struct inode *inode)
3189 {
3190 return is_inode_flag_set(inode, FI_INLINE_XATTR);
3191 }
3192
f2fs_compressed_file(struct inode * inode)3193 static inline int f2fs_compressed_file(struct inode *inode)
3194 {
3195 return S_ISREG(inode->i_mode) &&
3196 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3197 }
3198
f2fs_need_compress_data(struct inode * inode)3199 static inline bool f2fs_need_compress_data(struct inode *inode)
3200 {
3201 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3202
3203 if (!f2fs_compressed_file(inode))
3204 return false;
3205
3206 if (compress_mode == COMPR_MODE_FS)
3207 return true;
3208 else if (compress_mode == COMPR_MODE_USER &&
3209 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3210 return true;
3211
3212 return false;
3213 }
3214
addrs_per_inode(struct inode * inode)3215 static inline unsigned int addrs_per_inode(struct inode *inode)
3216 {
3217 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3218 get_inline_xattr_addrs(inode);
3219
3220 if (!f2fs_compressed_file(inode))
3221 return addrs;
3222 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3223 }
3224
addrs_per_block(struct inode * inode)3225 static inline unsigned int addrs_per_block(struct inode *inode)
3226 {
3227 if (!f2fs_compressed_file(inode))
3228 return DEF_ADDRS_PER_BLOCK;
3229 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3230 }
3231
inline_xattr_addr(struct inode * inode,struct page * page)3232 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3233 {
3234 struct f2fs_inode *ri = F2FS_INODE(page);
3235
3236 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3237 get_inline_xattr_addrs(inode)]);
3238 }
3239
inline_xattr_size(struct inode * inode)3240 static inline int inline_xattr_size(struct inode *inode)
3241 {
3242 if (f2fs_has_inline_xattr(inode))
3243 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3244 return 0;
3245 }
3246
3247 /*
3248 * Notice: check inline_data flag without inode page lock is unsafe.
3249 * It could change at any time by f2fs_convert_inline_page().
3250 */
f2fs_has_inline_data(struct inode * inode)3251 static inline int f2fs_has_inline_data(struct inode *inode)
3252 {
3253 return is_inode_flag_set(inode, FI_INLINE_DATA);
3254 }
3255
f2fs_exist_data(struct inode * inode)3256 static inline int f2fs_exist_data(struct inode *inode)
3257 {
3258 return is_inode_flag_set(inode, FI_DATA_EXIST);
3259 }
3260
f2fs_has_inline_dots(struct inode * inode)3261 static inline int f2fs_has_inline_dots(struct inode *inode)
3262 {
3263 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3264 }
3265
f2fs_is_mmap_file(struct inode * inode)3266 static inline int f2fs_is_mmap_file(struct inode *inode)
3267 {
3268 return is_inode_flag_set(inode, FI_MMAP_FILE);
3269 }
3270
f2fs_is_pinned_file(struct inode * inode)3271 static inline bool f2fs_is_pinned_file(struct inode *inode)
3272 {
3273 return is_inode_flag_set(inode, FI_PIN_FILE);
3274 }
3275
f2fs_is_atomic_file(struct inode * inode)3276 static inline bool f2fs_is_atomic_file(struct inode *inode)
3277 {
3278 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3279 }
3280
f2fs_is_cow_file(struct inode * inode)3281 static inline bool f2fs_is_cow_file(struct inode *inode)
3282 {
3283 return is_inode_flag_set(inode, FI_COW_FILE);
3284 }
3285
3286 static inline __le32 *get_dnode_addr(struct inode *inode,
3287 struct page *node_page);
inline_data_addr(struct inode * inode,struct page * page)3288 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3289 {
3290 __le32 *addr = get_dnode_addr(inode, page);
3291
3292 return (void *)(addr + DEF_INLINE_RESERVED_SIZE);
3293 }
3294
f2fs_has_inline_dentry(struct inode * inode)3295 static inline int f2fs_has_inline_dentry(struct inode *inode)
3296 {
3297 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3298 }
3299
is_file(struct inode * inode,int type)3300 static inline int is_file(struct inode *inode, int type)
3301 {
3302 return F2FS_I(inode)->i_advise & type;
3303 }
3304
set_file(struct inode * inode,int type)3305 static inline void set_file(struct inode *inode, int type)
3306 {
3307 if (is_file(inode, type))
3308 return;
3309 F2FS_I(inode)->i_advise |= type;
3310 f2fs_mark_inode_dirty_sync(inode, true);
3311 }
3312
clear_file(struct inode * inode,int type)3313 static inline void clear_file(struct inode *inode, int type)
3314 {
3315 if (!is_file(inode, type))
3316 return;
3317 F2FS_I(inode)->i_advise &= ~type;
3318 f2fs_mark_inode_dirty_sync(inode, true);
3319 }
3320
f2fs_is_time_consistent(struct inode * inode)3321 static inline bool f2fs_is_time_consistent(struct inode *inode)
3322 {
3323 struct timespec64 ctime = inode_get_ctime(inode);
3324
3325 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3326 return false;
3327 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &ctime))
3328 return false;
3329 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3330 return false;
3331 return true;
3332 }
3333
f2fs_skip_inode_update(struct inode * inode,int dsync)3334 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3335 {
3336 bool ret;
3337
3338 if (dsync) {
3339 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3340
3341 spin_lock(&sbi->inode_lock[DIRTY_META]);
3342 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3343 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3344 return ret;
3345 }
3346 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3347 file_keep_isize(inode) ||
3348 i_size_read(inode) & ~PAGE_MASK)
3349 return false;
3350
3351 if (!f2fs_is_time_consistent(inode))
3352 return false;
3353
3354 spin_lock(&F2FS_I(inode)->i_size_lock);
3355 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3356 spin_unlock(&F2FS_I(inode)->i_size_lock);
3357
3358 return ret;
3359 }
3360
f2fs_readonly(struct super_block * sb)3361 static inline bool f2fs_readonly(struct super_block *sb)
3362 {
3363 return sb_rdonly(sb);
3364 }
3365
f2fs_cp_error(struct f2fs_sb_info * sbi)3366 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3367 {
3368 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3369 }
3370
is_dot_dotdot(const u8 * name,size_t len)3371 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3372 {
3373 if (len == 1 && name[0] == '.')
3374 return true;
3375
3376 if (len == 2 && name[0] == '.' && name[1] == '.')
3377 return true;
3378
3379 return false;
3380 }
3381
f2fs_kmalloc(struct f2fs_sb_info * sbi,size_t size,gfp_t flags)3382 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3383 size_t size, gfp_t flags)
3384 {
3385 if (time_to_inject(sbi, FAULT_KMALLOC))
3386 return NULL;
3387
3388 return kmalloc(size, flags);
3389 }
3390
f2fs_getname(struct f2fs_sb_info * sbi)3391 static inline void *f2fs_getname(struct f2fs_sb_info *sbi)
3392 {
3393 if (time_to_inject(sbi, FAULT_KMALLOC))
3394 return NULL;
3395
3396 return __getname();
3397 }
3398
f2fs_putname(char * buf)3399 static inline void f2fs_putname(char *buf)
3400 {
3401 __putname(buf);
3402 }
3403
f2fs_kzalloc(struct f2fs_sb_info * sbi,size_t size,gfp_t flags)3404 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3405 size_t size, gfp_t flags)
3406 {
3407 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3408 }
3409
f2fs_kvmalloc(struct f2fs_sb_info * sbi,size_t size,gfp_t flags)3410 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3411 size_t size, gfp_t flags)
3412 {
3413 if (time_to_inject(sbi, FAULT_KVMALLOC))
3414 return NULL;
3415
3416 return kvmalloc(size, flags);
3417 }
3418
f2fs_kvzalloc(struct f2fs_sb_info * sbi,size_t size,gfp_t flags)3419 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3420 size_t size, gfp_t flags)
3421 {
3422 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3423 }
3424
get_extra_isize(struct inode * inode)3425 static inline int get_extra_isize(struct inode *inode)
3426 {
3427 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3428 }
3429
get_inline_xattr_addrs(struct inode * inode)3430 static inline int get_inline_xattr_addrs(struct inode *inode)
3431 {
3432 return F2FS_I(inode)->i_inline_xattr_size;
3433 }
3434
get_dnode_addr(struct inode * inode,struct page * node_page)3435 static inline __le32 *get_dnode_addr(struct inode *inode,
3436 struct page *node_page)
3437 {
3438 int base = 0;
3439
3440 if (IS_INODE(node_page) && f2fs_has_extra_attr(inode))
3441 base = get_extra_isize(inode);
3442
3443 return blkaddr_in_node(F2FS_NODE(node_page)) + base;
3444 }
3445
3446 #define f2fs_get_inode_mode(i) \
3447 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3448 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3449
3450 #define F2FS_MIN_EXTRA_ATTR_SIZE (sizeof(__le32))
3451
3452 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3453 (offsetof(struct f2fs_inode, i_extra_end) - \
3454 offsetof(struct f2fs_inode, i_extra_isize)) \
3455
3456 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3457 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3458 ((offsetof(typeof(*(f2fs_inode)), field) + \
3459 sizeof((f2fs_inode)->field)) \
3460 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3461
3462 #define __is_large_section(sbi) (SEGS_PER_SEC(sbi) > 1)
3463
3464 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3465
3466 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3467 block_t blkaddr, int type);
verify_blkaddr(struct f2fs_sb_info * sbi,block_t blkaddr,int type)3468 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3469 block_t blkaddr, int type)
3470 {
3471 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type))
3472 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3473 blkaddr, type);
3474 }
3475
__is_valid_data_blkaddr(block_t blkaddr)3476 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3477 {
3478 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3479 blkaddr == COMPRESS_ADDR)
3480 return false;
3481 return true;
3482 }
3483
3484 /*
3485 * file.c
3486 */
3487 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3488 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3489 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3490 int f2fs_truncate(struct inode *inode);
3491 int f2fs_getattr(struct mnt_idmap *idmap, const struct path *path,
3492 struct kstat *stat, u32 request_mask, unsigned int flags);
3493 int f2fs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
3494 struct iattr *attr);
3495 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3496 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3497 int f2fs_precache_extents(struct inode *inode);
3498 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3499 int f2fs_fileattr_set(struct mnt_idmap *idmap,
3500 struct dentry *dentry, struct fileattr *fa);
3501 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3502 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3503 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3504 int f2fs_pin_file_control(struct inode *inode, bool inc);
3505
3506 /*
3507 * inode.c
3508 */
3509 void f2fs_set_inode_flags(struct inode *inode);
3510 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3511 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3512 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3513 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3514 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3515 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3516 void f2fs_update_inode_page(struct inode *inode);
3517 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3518 void f2fs_evict_inode(struct inode *inode);
3519 void f2fs_handle_failed_inode(struct inode *inode);
3520
3521 /*
3522 * namei.c
3523 */
3524 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3525 bool hot, bool set);
3526 struct dentry *f2fs_get_parent(struct dentry *child);
3527 int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
3528 struct inode **new_inode);
3529
3530 /*
3531 * dir.c
3532 */
3533 int f2fs_init_casefolded_name(const struct inode *dir,
3534 struct f2fs_filename *fname);
3535 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3536 int lookup, struct f2fs_filename *fname);
3537 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3538 struct f2fs_filename *fname);
3539 void f2fs_free_filename(struct f2fs_filename *fname);
3540 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3541 const struct f2fs_filename *fname, int *max_slots);
3542 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3543 unsigned int start_pos, struct fscrypt_str *fstr);
3544 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3545 struct f2fs_dentry_ptr *d);
3546 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3547 const struct f2fs_filename *fname, struct page *dpage);
3548 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3549 unsigned int current_depth);
3550 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3551 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3552 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3553 const struct f2fs_filename *fname,
3554 struct page **res_page);
3555 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3556 const struct qstr *child, struct page **res_page);
3557 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3558 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3559 struct page **page);
3560 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3561 struct page *page, struct inode *inode);
3562 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3563 const struct f2fs_filename *fname);
3564 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3565 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3566 unsigned int bit_pos);
3567 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3568 struct inode *inode, nid_t ino, umode_t mode);
3569 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3570 struct inode *inode, nid_t ino, umode_t mode);
3571 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3572 struct inode *inode, nid_t ino, umode_t mode);
3573 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3574 struct inode *dir, struct inode *inode);
3575 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir,
3576 struct f2fs_filename *fname);
3577 bool f2fs_empty_dir(struct inode *dir);
3578
f2fs_add_link(struct dentry * dentry,struct inode * inode)3579 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3580 {
3581 if (fscrypt_is_nokey_name(dentry))
3582 return -ENOKEY;
3583 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3584 inode, inode->i_ino, inode->i_mode);
3585 }
3586
3587 /*
3588 * super.c
3589 */
3590 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3591 void f2fs_inode_synced(struct inode *inode);
3592 int f2fs_dquot_initialize(struct inode *inode);
3593 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3594 int f2fs_quota_sync(struct super_block *sb, int type);
3595 loff_t max_file_blocks(struct inode *inode);
3596 void f2fs_quota_off_umount(struct super_block *sb);
3597 void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag);
3598 void f2fs_handle_critical_error(struct f2fs_sb_info *sbi, unsigned char reason,
3599 bool irq_context);
3600 void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error);
3601 void f2fs_handle_error_async(struct f2fs_sb_info *sbi, unsigned char error);
3602 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3603 int f2fs_sync_fs(struct super_block *sb, int sync);
3604 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3605
3606 /*
3607 * hash.c
3608 */
3609 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3610
3611 /*
3612 * node.c
3613 */
3614 struct node_info;
3615
3616 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3617 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3618 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3619 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3620 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3621 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3622 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3623 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3624 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3625 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3626 struct node_info *ni, bool checkpoint_context);
3627 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3628 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3629 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3630 int f2fs_truncate_xattr_node(struct inode *inode);
3631 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3632 unsigned int seq_id);
3633 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3634 int f2fs_remove_inode_page(struct inode *inode);
3635 struct page *f2fs_new_inode_page(struct inode *inode);
3636 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3637 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3638 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3639 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3640 int f2fs_move_node_page(struct page *node_page, int gc_type);
3641 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3642 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3643 struct writeback_control *wbc, bool atomic,
3644 unsigned int *seq_id);
3645 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3646 struct writeback_control *wbc,
3647 bool do_balance, enum iostat_type io_type);
3648 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3649 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3650 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3651 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3652 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3653 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3654 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3655 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3656 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3657 unsigned int segno, struct f2fs_summary_block *sum);
3658 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3659 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3660 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3661 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3662 int __init f2fs_create_node_manager_caches(void);
3663 void f2fs_destroy_node_manager_caches(void);
3664
3665 /*
3666 * segment.c
3667 */
3668 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3669 int f2fs_commit_atomic_write(struct inode *inode);
3670 void f2fs_abort_atomic_write(struct inode *inode, bool clean);
3671 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3672 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3673 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3674 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3675 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3676 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3677 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3678 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3679 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3680 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3681 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3682 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3683 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3684 struct cp_control *cpc);
3685 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3686 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3687 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3688 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3689 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3690 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3691 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3692 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3693 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3694 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3695 unsigned int *newseg, bool new_sec, int dir);
3696 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3697 unsigned int start, unsigned int end);
3698 int f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3699 int f2fs_allocate_pinning_section(struct f2fs_sb_info *sbi);
3700 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3701 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3702 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3703 struct cp_control *cpc);
3704 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3705 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3706 block_t blk_addr);
3707 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3708 enum iostat_type io_type);
3709 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3710 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3711 struct f2fs_io_info *fio);
3712 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3713 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3714 block_t old_blkaddr, block_t new_blkaddr,
3715 bool recover_curseg, bool recover_newaddr,
3716 bool from_gc);
3717 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3718 block_t old_addr, block_t new_addr,
3719 unsigned char version, bool recover_curseg,
3720 bool recover_newaddr);
3721 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3722 block_t old_blkaddr, block_t *new_blkaddr,
3723 struct f2fs_summary *sum, int type,
3724 struct f2fs_io_info *fio);
3725 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
3726 block_t blkaddr, unsigned int blkcnt);
3727 void f2fs_wait_on_page_writeback(struct page *page,
3728 enum page_type type, bool ordered, bool locked);
3729 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3730 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3731 block_t len);
3732 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3733 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3734 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3735 unsigned int val, int alloc);
3736 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3737 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3738 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3739 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3740 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3741 int __init f2fs_create_segment_manager_caches(void);
3742 void f2fs_destroy_segment_manager_caches(void);
3743 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3744 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3745 unsigned int segno);
3746 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3747 unsigned int segno);
3748
3749 #define DEF_FRAGMENT_SIZE 4
3750 #define MIN_FRAGMENT_SIZE 1
3751 #define MAX_FRAGMENT_SIZE 512
3752
f2fs_need_rand_seg(struct f2fs_sb_info * sbi)3753 static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
3754 {
3755 return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
3756 F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
3757 }
3758
3759 /*
3760 * checkpoint.c
3761 */
3762 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io,
3763 unsigned char reason);
3764 void f2fs_flush_ckpt_thread(struct f2fs_sb_info *sbi);
3765 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3766 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3767 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3768 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3769 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3770 block_t blkaddr, int type);
3771 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3772 int type, bool sync);
3773 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index,
3774 unsigned int ra_blocks);
3775 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3776 long nr_to_write, enum iostat_type io_type);
3777 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3778 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3779 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3780 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3781 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3782 unsigned int devidx, int type);
3783 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3784 unsigned int devidx, int type);
3785 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3786 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3787 void f2fs_add_orphan_inode(struct inode *inode);
3788 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3789 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3790 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3791 void f2fs_update_dirty_folio(struct inode *inode, struct folio *folio);
3792 void f2fs_remove_dirty_inode(struct inode *inode);
3793 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type,
3794 bool from_cp);
3795 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3796 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3797 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3798 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3799 int __init f2fs_create_checkpoint_caches(void);
3800 void f2fs_destroy_checkpoint_caches(void);
3801 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3802 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3803 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3804 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3805
3806 /*
3807 * data.c
3808 */
3809 int __init f2fs_init_bioset(void);
3810 void f2fs_destroy_bioset(void);
3811 bool f2fs_is_cp_guaranteed(struct page *page);
3812 int f2fs_init_bio_entry_cache(void);
3813 void f2fs_destroy_bio_entry_cache(void);
3814 void f2fs_submit_read_bio(struct f2fs_sb_info *sbi, struct bio *bio,
3815 enum page_type type);
3816 int f2fs_init_write_merge_io(struct f2fs_sb_info *sbi);
3817 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3818 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3819 struct inode *inode, struct page *page,
3820 nid_t ino, enum page_type type);
3821 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3822 struct bio **bio, struct page *page);
3823 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3824 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3825 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3826 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3827 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3828 block_t blk_addr, sector_t *sector);
3829 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3830 void f2fs_set_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3831 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3832 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3833 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3834 int f2fs_get_block_locked(struct dnode_of_data *dn, pgoff_t index);
3835 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3836 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3837 blk_opf_t op_flags, bool for_write, pgoff_t *next_pgofs);
3838 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index,
3839 pgoff_t *next_pgofs);
3840 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3841 bool for_write);
3842 struct page *f2fs_get_new_data_page(struct inode *inode,
3843 struct page *ipage, pgoff_t index, bool new_i_size);
3844 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3845 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, int flag);
3846 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3847 u64 start, u64 len);
3848 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3849 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3850 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3851 int f2fs_write_single_data_page(struct page *page, int *submitted,
3852 struct bio **bio, sector_t *last_block,
3853 struct writeback_control *wbc,
3854 enum iostat_type io_type,
3855 int compr_blocks, bool allow_balance);
3856 void f2fs_write_failed(struct inode *inode, loff_t to);
3857 void f2fs_invalidate_folio(struct folio *folio, size_t offset, size_t length);
3858 bool f2fs_release_folio(struct folio *folio, gfp_t wait);
3859 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3860 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3861 int f2fs_init_post_read_processing(void);
3862 void f2fs_destroy_post_read_processing(void);
3863 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3864 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3865 extern const struct iomap_ops f2fs_iomap_ops;
3866
3867 /*
3868 * gc.c
3869 */
3870 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3871 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3872 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3873 int f2fs_gc(struct f2fs_sb_info *sbi, struct f2fs_gc_control *gc_control);
3874 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3875 int f2fs_gc_range(struct f2fs_sb_info *sbi,
3876 unsigned int start_seg, unsigned int end_seg,
3877 bool dry_run, unsigned int dry_run_sections);
3878 int f2fs_resize_fs(struct file *filp, __u64 block_count);
3879 int __init f2fs_create_garbage_collection_cache(void);
3880 void f2fs_destroy_garbage_collection_cache(void);
3881 /* victim selection function for cleaning and SSR */
3882 int f2fs_get_victim(struct f2fs_sb_info *sbi, unsigned int *result,
3883 int gc_type, int type, char alloc_mode,
3884 unsigned long long age);
3885
3886 /*
3887 * recovery.c
3888 */
3889 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3890 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3891 int __init f2fs_create_recovery_cache(void);
3892 void f2fs_destroy_recovery_cache(void);
3893
3894 /*
3895 * debug.c
3896 */
3897 #ifdef CONFIG_F2FS_STAT_FS
3898 struct f2fs_stat_info {
3899 struct list_head stat_list;
3900 struct f2fs_sb_info *sbi;
3901 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3902 int main_area_segs, main_area_sections, main_area_zones;
3903 unsigned long long hit_cached[NR_EXTENT_CACHES];
3904 unsigned long long hit_rbtree[NR_EXTENT_CACHES];
3905 unsigned long long total_ext[NR_EXTENT_CACHES];
3906 unsigned long long hit_total[NR_EXTENT_CACHES];
3907 int ext_tree[NR_EXTENT_CACHES];
3908 int zombie_tree[NR_EXTENT_CACHES];
3909 int ext_node[NR_EXTENT_CACHES];
3910 /* to count memory footprint */
3911 unsigned long long ext_mem[NR_EXTENT_CACHES];
3912 /* for read extent cache */
3913 unsigned long long hit_largest;
3914 /* for block age extent cache */
3915 unsigned long long allocated_data_blocks;
3916 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3917 int ndirty_data, ndirty_qdata;
3918 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3919 int nats, dirty_nats, sits, dirty_sits;
3920 int free_nids, avail_nids, alloc_nids;
3921 int total_count, utilization;
3922 int nr_wb_cp_data, nr_wb_data;
3923 int nr_rd_data, nr_rd_node, nr_rd_meta;
3924 int nr_dio_read, nr_dio_write;
3925 unsigned int io_skip_bggc, other_skip_bggc;
3926 int nr_flushing, nr_flushed, flush_list_empty;
3927 int nr_discarding, nr_discarded;
3928 int nr_discard_cmd;
3929 unsigned int undiscard_blks;
3930 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3931 unsigned int cur_ckpt_time, peak_ckpt_time;
3932 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3933 int compr_inode, swapfile_inode;
3934 unsigned long long compr_blocks;
3935 int aw_cnt, max_aw_cnt;
3936 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3937 unsigned int bimodal, avg_vblocks;
3938 int util_free, util_valid, util_invalid;
3939 int rsvd_segs, overp_segs;
3940 int dirty_count, node_pages, meta_pages, compress_pages;
3941 int compress_page_hit;
3942 int prefree_count, free_segs, free_secs;
3943 int cp_call_count[MAX_CALL_TYPE], cp_count;
3944 int gc_call_count[MAX_CALL_TYPE];
3945 int gc_segs[2][2];
3946 int gc_secs[2][2];
3947 int tot_blks, data_blks, node_blks;
3948 int bg_data_blks, bg_node_blks;
3949 int curseg[NR_CURSEG_TYPE];
3950 int cursec[NR_CURSEG_TYPE];
3951 int curzone[NR_CURSEG_TYPE];
3952 unsigned int dirty_seg[NR_CURSEG_TYPE];
3953 unsigned int full_seg[NR_CURSEG_TYPE];
3954 unsigned int valid_blks[NR_CURSEG_TYPE];
3955
3956 unsigned int meta_count[META_MAX];
3957 unsigned int segment_count[2];
3958 unsigned int block_count[2];
3959 unsigned int inplace_count;
3960 unsigned long long base_mem, cache_mem, page_mem;
3961 };
3962
F2FS_STAT(struct f2fs_sb_info * sbi)3963 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3964 {
3965 return (struct f2fs_stat_info *)sbi->stat_info;
3966 }
3967
3968 #define stat_inc_cp_call_count(sbi, foreground) \
3969 atomic_inc(&sbi->cp_call_count[(foreground)])
3970 #define stat_inc_cp_count(si) (F2FS_STAT(sbi)->cp_count++)
3971 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3972 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3973 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3974 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3975 #define stat_inc_total_hit(sbi, type) (atomic64_inc(&(sbi)->total_hit_ext[type]))
3976 #define stat_inc_rbtree_node_hit(sbi, type) (atomic64_inc(&(sbi)->read_hit_rbtree[type]))
3977 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3978 #define stat_inc_cached_node_hit(sbi, type) (atomic64_inc(&(sbi)->read_hit_cached[type]))
3979 #define stat_inc_inline_xattr(inode) \
3980 do { \
3981 if (f2fs_has_inline_xattr(inode)) \
3982 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3983 } while (0)
3984 #define stat_dec_inline_xattr(inode) \
3985 do { \
3986 if (f2fs_has_inline_xattr(inode)) \
3987 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3988 } while (0)
3989 #define stat_inc_inline_inode(inode) \
3990 do { \
3991 if (f2fs_has_inline_data(inode)) \
3992 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3993 } while (0)
3994 #define stat_dec_inline_inode(inode) \
3995 do { \
3996 if (f2fs_has_inline_data(inode)) \
3997 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3998 } while (0)
3999 #define stat_inc_inline_dir(inode) \
4000 do { \
4001 if (f2fs_has_inline_dentry(inode)) \
4002 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
4003 } while (0)
4004 #define stat_dec_inline_dir(inode) \
4005 do { \
4006 if (f2fs_has_inline_dentry(inode)) \
4007 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
4008 } while (0)
4009 #define stat_inc_compr_inode(inode) \
4010 do { \
4011 if (f2fs_compressed_file(inode)) \
4012 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
4013 } while (0)
4014 #define stat_dec_compr_inode(inode) \
4015 do { \
4016 if (f2fs_compressed_file(inode)) \
4017 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
4018 } while (0)
4019 #define stat_add_compr_blocks(inode, blocks) \
4020 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
4021 #define stat_sub_compr_blocks(inode, blocks) \
4022 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
4023 #define stat_inc_swapfile_inode(inode) \
4024 (atomic_inc(&F2FS_I_SB(inode)->swapfile_inode))
4025 #define stat_dec_swapfile_inode(inode) \
4026 (atomic_dec(&F2FS_I_SB(inode)->swapfile_inode))
4027 #define stat_inc_atomic_inode(inode) \
4028 (atomic_inc(&F2FS_I_SB(inode)->atomic_files))
4029 #define stat_dec_atomic_inode(inode) \
4030 (atomic_dec(&F2FS_I_SB(inode)->atomic_files))
4031 #define stat_inc_meta_count(sbi, blkaddr) \
4032 do { \
4033 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
4034 atomic_inc(&(sbi)->meta_count[META_CP]); \
4035 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
4036 atomic_inc(&(sbi)->meta_count[META_SIT]); \
4037 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
4038 atomic_inc(&(sbi)->meta_count[META_NAT]); \
4039 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
4040 atomic_inc(&(sbi)->meta_count[META_SSA]); \
4041 } while (0)
4042 #define stat_inc_seg_type(sbi, curseg) \
4043 ((sbi)->segment_count[(curseg)->alloc_type]++)
4044 #define stat_inc_block_count(sbi, curseg) \
4045 ((sbi)->block_count[(curseg)->alloc_type]++)
4046 #define stat_inc_inplace_blocks(sbi) \
4047 (atomic_inc(&(sbi)->inplace_count))
4048 #define stat_update_max_atomic_write(inode) \
4049 do { \
4050 int cur = atomic_read(&F2FS_I_SB(inode)->atomic_files); \
4051 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
4052 if (cur > max) \
4053 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
4054 } while (0)
4055 #define stat_inc_gc_call_count(sbi, foreground) \
4056 (F2FS_STAT(sbi)->gc_call_count[(foreground)]++)
4057 #define stat_inc_gc_sec_count(sbi, type, gc_type) \
4058 (F2FS_STAT(sbi)->gc_secs[(type)][(gc_type)]++)
4059 #define stat_inc_gc_seg_count(sbi, type, gc_type) \
4060 (F2FS_STAT(sbi)->gc_segs[(type)][(gc_type)]++)
4061
4062 #define stat_inc_tot_blk_count(si, blks) \
4063 ((si)->tot_blks += (blks))
4064
4065 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
4066 do { \
4067 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
4068 stat_inc_tot_blk_count(si, blks); \
4069 si->data_blks += (blks); \
4070 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
4071 } while (0)
4072
4073 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
4074 do { \
4075 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
4076 stat_inc_tot_blk_count(si, blks); \
4077 si->node_blks += (blks); \
4078 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
4079 } while (0)
4080
4081 int f2fs_build_stats(struct f2fs_sb_info *sbi);
4082 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
4083 void __init f2fs_create_root_stats(void);
4084 void f2fs_destroy_root_stats(void);
4085 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
4086 #else
4087 #define stat_inc_cp_call_count(sbi, foreground) do { } while (0)
4088 #define stat_inc_cp_count(sbi) do { } while (0)
4089 #define stat_io_skip_bggc_count(sbi) do { } while (0)
4090 #define stat_other_skip_bggc_count(sbi) do { } while (0)
4091 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
4092 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
4093 #define stat_inc_total_hit(sbi, type) do { } while (0)
4094 #define stat_inc_rbtree_node_hit(sbi, type) do { } while (0)
4095 #define stat_inc_largest_node_hit(sbi) do { } while (0)
4096 #define stat_inc_cached_node_hit(sbi, type) do { } while (0)
4097 #define stat_inc_inline_xattr(inode) do { } while (0)
4098 #define stat_dec_inline_xattr(inode) do { } while (0)
4099 #define stat_inc_inline_inode(inode) do { } while (0)
4100 #define stat_dec_inline_inode(inode) do { } while (0)
4101 #define stat_inc_inline_dir(inode) do { } while (0)
4102 #define stat_dec_inline_dir(inode) do { } while (0)
4103 #define stat_inc_compr_inode(inode) do { } while (0)
4104 #define stat_dec_compr_inode(inode) do { } while (0)
4105 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
4106 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
4107 #define stat_inc_swapfile_inode(inode) do { } while (0)
4108 #define stat_dec_swapfile_inode(inode) do { } while (0)
4109 #define stat_inc_atomic_inode(inode) do { } while (0)
4110 #define stat_dec_atomic_inode(inode) do { } while (0)
4111 #define stat_update_max_atomic_write(inode) do { } while (0)
4112 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
4113 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
4114 #define stat_inc_block_count(sbi, curseg) do { } while (0)
4115 #define stat_inc_inplace_blocks(sbi) do { } while (0)
4116 #define stat_inc_gc_call_count(sbi, foreground) do { } while (0)
4117 #define stat_inc_gc_sec_count(sbi, type, gc_type) do { } while (0)
4118 #define stat_inc_gc_seg_count(sbi, type, gc_type) do { } while (0)
4119 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
4120 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
4121 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
4122
f2fs_build_stats(struct f2fs_sb_info * sbi)4123 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
f2fs_destroy_stats(struct f2fs_sb_info * sbi)4124 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
f2fs_create_root_stats(void)4125 static inline void __init f2fs_create_root_stats(void) { }
f2fs_destroy_root_stats(void)4126 static inline void f2fs_destroy_root_stats(void) { }
f2fs_update_sit_info(struct f2fs_sb_info * sbi)4127 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
4128 #endif
4129
4130 extern const struct file_operations f2fs_dir_operations;
4131 extern const struct file_operations f2fs_file_operations;
4132 extern const struct inode_operations f2fs_file_inode_operations;
4133 extern const struct address_space_operations f2fs_dblock_aops;
4134 extern const struct address_space_operations f2fs_node_aops;
4135 extern const struct address_space_operations f2fs_meta_aops;
4136 extern const struct inode_operations f2fs_dir_inode_operations;
4137 extern const struct inode_operations f2fs_symlink_inode_operations;
4138 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
4139 extern const struct inode_operations f2fs_special_inode_operations;
4140 extern struct kmem_cache *f2fs_inode_entry_slab;
4141
4142 /*
4143 * inline.c
4144 */
4145 bool f2fs_may_inline_data(struct inode *inode);
4146 bool f2fs_sanity_check_inline_data(struct inode *inode);
4147 bool f2fs_may_inline_dentry(struct inode *inode);
4148 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
4149 void f2fs_truncate_inline_inode(struct inode *inode,
4150 struct page *ipage, u64 from);
4151 int f2fs_read_inline_data(struct inode *inode, struct page *page);
4152 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
4153 int f2fs_convert_inline_inode(struct inode *inode);
4154 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
4155 int f2fs_write_inline_data(struct inode *inode, struct page *page);
4156 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
4157 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
4158 const struct f2fs_filename *fname,
4159 struct page **res_page);
4160 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
4161 struct page *ipage);
4162 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
4163 struct inode *inode, nid_t ino, umode_t mode);
4164 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
4165 struct page *page, struct inode *dir,
4166 struct inode *inode);
4167 bool f2fs_empty_inline_dir(struct inode *dir);
4168 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
4169 struct fscrypt_str *fstr);
4170 int f2fs_inline_data_fiemap(struct inode *inode,
4171 struct fiemap_extent_info *fieinfo,
4172 __u64 start, __u64 len);
4173
4174 /*
4175 * shrinker.c
4176 */
4177 unsigned long f2fs_shrink_count(struct shrinker *shrink,
4178 struct shrink_control *sc);
4179 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
4180 struct shrink_control *sc);
4181 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
4182 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
4183
4184 /*
4185 * extent_cache.c
4186 */
4187 bool sanity_check_extent_cache(struct inode *inode);
4188 void f2fs_init_extent_tree(struct inode *inode);
4189 void f2fs_drop_extent_tree(struct inode *inode);
4190 void f2fs_destroy_extent_node(struct inode *inode);
4191 void f2fs_destroy_extent_tree(struct inode *inode);
4192 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
4193 int __init f2fs_create_extent_cache(void);
4194 void f2fs_destroy_extent_cache(void);
4195
4196 /* read extent cache ops */
4197 void f2fs_init_read_extent_tree(struct inode *inode, struct page *ipage);
4198 bool f2fs_lookup_read_extent_cache(struct inode *inode, pgoff_t pgofs,
4199 struct extent_info *ei);
4200 bool f2fs_lookup_read_extent_cache_block(struct inode *inode, pgoff_t index,
4201 block_t *blkaddr);
4202 void f2fs_update_read_extent_cache(struct dnode_of_data *dn);
4203 void f2fs_update_read_extent_cache_range(struct dnode_of_data *dn,
4204 pgoff_t fofs, block_t blkaddr, unsigned int len);
4205 unsigned int f2fs_shrink_read_extent_tree(struct f2fs_sb_info *sbi,
4206 int nr_shrink);
4207
4208 /* block age extent cache ops */
4209 void f2fs_init_age_extent_tree(struct inode *inode);
4210 bool f2fs_lookup_age_extent_cache(struct inode *inode, pgoff_t pgofs,
4211 struct extent_info *ei);
4212 void f2fs_update_age_extent_cache(struct dnode_of_data *dn);
4213 void f2fs_update_age_extent_cache_range(struct dnode_of_data *dn,
4214 pgoff_t fofs, unsigned int len);
4215 unsigned int f2fs_shrink_age_extent_tree(struct f2fs_sb_info *sbi,
4216 int nr_shrink);
4217
4218 /*
4219 * sysfs.c
4220 */
4221 #define MIN_RA_MUL 2
4222 #define MAX_RA_MUL 256
4223
4224 int __init f2fs_init_sysfs(void);
4225 void f2fs_exit_sysfs(void);
4226 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4227 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4228
4229 /* verity.c */
4230 extern const struct fsverity_operations f2fs_verityops;
4231
4232 /*
4233 * crypto support
4234 */
f2fs_encrypted_file(struct inode * inode)4235 static inline bool f2fs_encrypted_file(struct inode *inode)
4236 {
4237 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4238 }
4239
f2fs_set_encrypted_inode(struct inode * inode)4240 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4241 {
4242 #ifdef CONFIG_FS_ENCRYPTION
4243 file_set_encrypt(inode);
4244 f2fs_set_inode_flags(inode);
4245 #endif
4246 }
4247
4248 /*
4249 * Returns true if the reads of the inode's data need to undergo some
4250 * postprocessing step, like decryption or authenticity verification.
4251 */
f2fs_post_read_required(struct inode * inode)4252 static inline bool f2fs_post_read_required(struct inode *inode)
4253 {
4254 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4255 f2fs_compressed_file(inode);
4256 }
4257
4258 /*
4259 * compress.c
4260 */
4261 #ifdef CONFIG_F2FS_FS_COMPRESSION
4262 bool f2fs_is_compressed_page(struct page *page);
4263 struct page *f2fs_compress_control_page(struct page *page);
4264 int f2fs_prepare_compress_overwrite(struct inode *inode,
4265 struct page **pagep, pgoff_t index, void **fsdata);
4266 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4267 pgoff_t index, unsigned copied);
4268 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4269 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4270 bool f2fs_is_compress_backend_ready(struct inode *inode);
4271 bool f2fs_is_compress_level_valid(int alg, int lvl);
4272 int __init f2fs_init_compress_mempool(void);
4273 void f2fs_destroy_compress_mempool(void);
4274 void f2fs_decompress_cluster(struct decompress_io_ctx *dic, bool in_task);
4275 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4276 block_t blkaddr, bool in_task);
4277 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4278 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4279 bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct page **pages,
4280 int index, int nr_pages, bool uptodate);
4281 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4282 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4283 int f2fs_write_multi_pages(struct compress_ctx *cc,
4284 int *submitted,
4285 struct writeback_control *wbc,
4286 enum iostat_type io_type);
4287 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4288 void f2fs_update_read_extent_tree_range_compressed(struct inode *inode,
4289 pgoff_t fofs, block_t blkaddr,
4290 unsigned int llen, unsigned int c_len);
4291 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4292 unsigned nr_pages, sector_t *last_block_in_bio,
4293 bool is_readahead, bool for_write);
4294 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4295 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed,
4296 bool in_task);
4297 void f2fs_put_page_dic(struct page *page, bool in_task);
4298 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn,
4299 unsigned int ofs_in_node);
4300 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4301 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4302 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4303 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4304 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4305 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4306 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4307 int __init f2fs_init_compress_cache(void);
4308 void f2fs_destroy_compress_cache(void);
4309 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4310 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4311 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4312 nid_t ino, block_t blkaddr);
4313 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4314 block_t blkaddr);
4315 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4316 #define inc_compr_inode_stat(inode) \
4317 do { \
4318 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4319 sbi->compr_new_inode++; \
4320 } while (0)
4321 #define add_compr_block_stat(inode, blocks) \
4322 do { \
4323 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4324 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4325 sbi->compr_written_block += blocks; \
4326 sbi->compr_saved_block += diff; \
4327 } while (0)
4328 #else
f2fs_is_compressed_page(struct page * page)4329 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
f2fs_is_compress_backend_ready(struct inode * inode)4330 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4331 {
4332 if (!f2fs_compressed_file(inode))
4333 return true;
4334 /* not support compression */
4335 return false;
4336 }
f2fs_is_compress_level_valid(int alg,int lvl)4337 static inline bool f2fs_is_compress_level_valid(int alg, int lvl) { return false; }
f2fs_compress_control_page(struct page * page)4338 static inline struct page *f2fs_compress_control_page(struct page *page)
4339 {
4340 WARN_ON_ONCE(1);
4341 return ERR_PTR(-EINVAL);
4342 }
f2fs_init_compress_mempool(void)4343 static inline int __init f2fs_init_compress_mempool(void) { return 0; }
f2fs_destroy_compress_mempool(void)4344 static inline void f2fs_destroy_compress_mempool(void) { }
f2fs_decompress_cluster(struct decompress_io_ctx * dic,bool in_task)4345 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic,
4346 bool in_task) { }
f2fs_end_read_compressed_page(struct page * page,bool failed,block_t blkaddr,bool in_task)4347 static inline void f2fs_end_read_compressed_page(struct page *page,
4348 bool failed, block_t blkaddr, bool in_task)
4349 {
4350 WARN_ON_ONCE(1);
4351 }
f2fs_put_page_dic(struct page * page,bool in_task)4352 static inline void f2fs_put_page_dic(struct page *page, bool in_task)
4353 {
4354 WARN_ON_ONCE(1);
4355 }
f2fs_cluster_blocks_are_contiguous(struct dnode_of_data * dn,unsigned int ofs_in_node)4356 static inline unsigned int f2fs_cluster_blocks_are_contiguous(
4357 struct dnode_of_data *dn, unsigned int ofs_in_node) { return 0; }
f2fs_sanity_check_cluster(struct dnode_of_data * dn)4358 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
f2fs_init_compress_inode(struct f2fs_sb_info * sbi)4359 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
f2fs_destroy_compress_inode(struct f2fs_sb_info * sbi)4360 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
f2fs_init_page_array_cache(struct f2fs_sb_info * sbi)4361 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
f2fs_destroy_page_array_cache(struct f2fs_sb_info * sbi)4362 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
f2fs_init_compress_cache(void)4363 static inline int __init f2fs_init_compress_cache(void) { return 0; }
f2fs_destroy_compress_cache(void)4364 static inline void f2fs_destroy_compress_cache(void) { }
f2fs_invalidate_compress_page(struct f2fs_sb_info * sbi,block_t blkaddr)4365 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4366 block_t blkaddr) { }
f2fs_cache_compressed_page(struct f2fs_sb_info * sbi,struct page * page,nid_t ino,block_t blkaddr)4367 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4368 struct page *page, nid_t ino, block_t blkaddr) { }
f2fs_load_compressed_page(struct f2fs_sb_info * sbi,struct page * page,block_t blkaddr)4369 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4370 struct page *page, block_t blkaddr) { return false; }
f2fs_invalidate_compress_pages(struct f2fs_sb_info * sbi,nid_t ino)4371 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4372 nid_t ino) { }
4373 #define inc_compr_inode_stat(inode) do { } while (0)
f2fs_update_read_extent_tree_range_compressed(struct inode * inode,pgoff_t fofs,block_t blkaddr,unsigned int llen,unsigned int c_len)4374 static inline void f2fs_update_read_extent_tree_range_compressed(
4375 struct inode *inode,
4376 pgoff_t fofs, block_t blkaddr,
4377 unsigned int llen, unsigned int c_len) { }
4378 #endif
4379
set_compress_context(struct inode * inode)4380 static inline int set_compress_context(struct inode *inode)
4381 {
4382 #ifdef CONFIG_F2FS_FS_COMPRESSION
4383 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4384
4385 F2FS_I(inode)->i_compress_algorithm =
4386 F2FS_OPTION(sbi).compress_algorithm;
4387 F2FS_I(inode)->i_log_cluster_size =
4388 F2FS_OPTION(sbi).compress_log_size;
4389 F2FS_I(inode)->i_compress_flag =
4390 F2FS_OPTION(sbi).compress_chksum ?
4391 BIT(COMPRESS_CHKSUM) : 0;
4392 F2FS_I(inode)->i_cluster_size =
4393 BIT(F2FS_I(inode)->i_log_cluster_size);
4394 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4395 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4396 F2FS_OPTION(sbi).compress_level)
4397 F2FS_I(inode)->i_compress_level =
4398 F2FS_OPTION(sbi).compress_level;
4399 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4400 set_inode_flag(inode, FI_COMPRESSED_FILE);
4401 stat_inc_compr_inode(inode);
4402 inc_compr_inode_stat(inode);
4403 f2fs_mark_inode_dirty_sync(inode, true);
4404 return 0;
4405 #else
4406 return -EOPNOTSUPP;
4407 #endif
4408 }
4409
f2fs_disable_compressed_file(struct inode * inode)4410 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4411 {
4412 struct f2fs_inode_info *fi = F2FS_I(inode);
4413
4414 f2fs_down_write(&F2FS_I(inode)->i_sem);
4415
4416 if (!f2fs_compressed_file(inode)) {
4417 f2fs_up_write(&F2FS_I(inode)->i_sem);
4418 return true;
4419 }
4420 if (f2fs_is_mmap_file(inode) ||
4421 (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))) {
4422 f2fs_up_write(&F2FS_I(inode)->i_sem);
4423 return false;
4424 }
4425
4426 fi->i_flags &= ~F2FS_COMPR_FL;
4427 stat_dec_compr_inode(inode);
4428 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4429 f2fs_mark_inode_dirty_sync(inode, true);
4430
4431 f2fs_up_write(&F2FS_I(inode)->i_sem);
4432 return true;
4433 }
4434
4435 #define F2FS_FEATURE_FUNCS(name, flagname) \
4436 static inline bool f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4437 { \
4438 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4439 }
4440
4441 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4442 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4443 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4444 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4445 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4446 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4447 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4448 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4449 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4450 F2FS_FEATURE_FUNCS(verity, VERITY);
4451 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4452 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4453 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4454 F2FS_FEATURE_FUNCS(readonly, RO);
4455
4456 #ifdef CONFIG_BLK_DEV_ZONED
f2fs_blkz_is_seq(struct f2fs_sb_info * sbi,int devi,block_t blkaddr)4457 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4458 block_t blkaddr)
4459 {
4460 unsigned int zno = blkaddr / sbi->blocks_per_blkz;
4461
4462 return test_bit(zno, FDEV(devi).blkz_seq);
4463 }
4464 #endif
4465
f2fs_bdev_index(struct f2fs_sb_info * sbi,struct block_device * bdev)4466 static inline int f2fs_bdev_index(struct f2fs_sb_info *sbi,
4467 struct block_device *bdev)
4468 {
4469 int i;
4470
4471 if (!f2fs_is_multi_device(sbi))
4472 return 0;
4473
4474 for (i = 0; i < sbi->s_ndevs; i++)
4475 if (FDEV(i).bdev == bdev)
4476 return i;
4477
4478 WARN_ON(1);
4479 return -1;
4480 }
4481
f2fs_hw_should_discard(struct f2fs_sb_info * sbi)4482 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4483 {
4484 return f2fs_sb_has_blkzoned(sbi);
4485 }
4486
f2fs_bdev_support_discard(struct block_device * bdev)4487 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4488 {
4489 return bdev_max_discard_sectors(bdev) || bdev_is_zoned(bdev);
4490 }
4491
f2fs_hw_support_discard(struct f2fs_sb_info * sbi)4492 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4493 {
4494 int i;
4495
4496 if (!f2fs_is_multi_device(sbi))
4497 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4498
4499 for (i = 0; i < sbi->s_ndevs; i++)
4500 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4501 return true;
4502 return false;
4503 }
4504
f2fs_realtime_discard_enable(struct f2fs_sb_info * sbi)4505 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4506 {
4507 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4508 f2fs_hw_should_discard(sbi);
4509 }
4510
f2fs_hw_is_readonly(struct f2fs_sb_info * sbi)4511 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4512 {
4513 int i;
4514
4515 if (!f2fs_is_multi_device(sbi))
4516 return bdev_read_only(sbi->sb->s_bdev);
4517
4518 for (i = 0; i < sbi->s_ndevs; i++)
4519 if (bdev_read_only(FDEV(i).bdev))
4520 return true;
4521 return false;
4522 }
4523
f2fs_dev_is_readonly(struct f2fs_sb_info * sbi)4524 static inline bool f2fs_dev_is_readonly(struct f2fs_sb_info *sbi)
4525 {
4526 return f2fs_sb_has_readonly(sbi) || f2fs_hw_is_readonly(sbi);
4527 }
4528
f2fs_lfs_mode(struct f2fs_sb_info * sbi)4529 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4530 {
4531 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4532 }
4533
f2fs_valid_pinned_area(struct f2fs_sb_info * sbi,block_t blkaddr)4534 static inline bool f2fs_valid_pinned_area(struct f2fs_sb_info *sbi,
4535 block_t blkaddr)
4536 {
4537 if (f2fs_sb_has_blkzoned(sbi)) {
4538 int devi = f2fs_target_device_index(sbi, blkaddr);
4539
4540 return !bdev_is_zoned(FDEV(devi).bdev);
4541 }
4542 return true;
4543 }
4544
f2fs_low_mem_mode(struct f2fs_sb_info * sbi)4545 static inline bool f2fs_low_mem_mode(struct f2fs_sb_info *sbi)
4546 {
4547 return F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_LOW;
4548 }
4549
f2fs_may_compress(struct inode * inode)4550 static inline bool f2fs_may_compress(struct inode *inode)
4551 {
4552 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4553 f2fs_is_atomic_file(inode) || f2fs_has_inline_data(inode) ||
4554 f2fs_is_mmap_file(inode))
4555 return false;
4556 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4557 }
4558
f2fs_i_compr_blocks_update(struct inode * inode,u64 blocks,bool add)4559 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4560 u64 blocks, bool add)
4561 {
4562 struct f2fs_inode_info *fi = F2FS_I(inode);
4563 int diff = fi->i_cluster_size - blocks;
4564
4565 /* don't update i_compr_blocks if saved blocks were released */
4566 if (!add && !atomic_read(&fi->i_compr_blocks))
4567 return;
4568
4569 if (add) {
4570 atomic_add(diff, &fi->i_compr_blocks);
4571 stat_add_compr_blocks(inode, diff);
4572 } else {
4573 atomic_sub(diff, &fi->i_compr_blocks);
4574 stat_sub_compr_blocks(inode, diff);
4575 }
4576 f2fs_mark_inode_dirty_sync(inode, true);
4577 }
4578
f2fs_allow_multi_device_dio(struct f2fs_sb_info * sbi,int flag)4579 static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
4580 int flag)
4581 {
4582 if (!f2fs_is_multi_device(sbi))
4583 return false;
4584 if (flag != F2FS_GET_BLOCK_DIO)
4585 return false;
4586 return sbi->aligned_blksize;
4587 }
4588
f2fs_need_verity(const struct inode * inode,pgoff_t idx)4589 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4590 {
4591 return fsverity_active(inode) &&
4592 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4593 }
4594
4595 #ifdef CONFIG_F2FS_FAULT_INJECTION
4596 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4597 unsigned int type);
4598 #else
4599 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4600 #endif
4601
is_journalled_quota(struct f2fs_sb_info * sbi)4602 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4603 {
4604 #ifdef CONFIG_QUOTA
4605 if (f2fs_sb_has_quota_ino(sbi))
4606 return true;
4607 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4608 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4609 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4610 return true;
4611 #endif
4612 return false;
4613 }
4614
f2fs_block_unit_discard(struct f2fs_sb_info * sbi)4615 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4616 {
4617 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4618 }
4619
f2fs_io_schedule_timeout(long timeout)4620 static inline void f2fs_io_schedule_timeout(long timeout)
4621 {
4622 set_current_state(TASK_UNINTERRUPTIBLE);
4623 io_schedule_timeout(timeout);
4624 }
4625
f2fs_handle_page_eio(struct f2fs_sb_info * sbi,pgoff_t ofs,enum page_type type)4626 static inline void f2fs_handle_page_eio(struct f2fs_sb_info *sbi, pgoff_t ofs,
4627 enum page_type type)
4628 {
4629 if (unlikely(f2fs_cp_error(sbi)))
4630 return;
4631
4632 if (ofs == sbi->page_eio_ofs[type]) {
4633 if (sbi->page_eio_cnt[type]++ == MAX_RETRY_PAGE_EIO)
4634 set_ckpt_flags(sbi, CP_ERROR_FLAG);
4635 } else {
4636 sbi->page_eio_ofs[type] = ofs;
4637 sbi->page_eio_cnt[type] = 0;
4638 }
4639 }
4640
f2fs_is_readonly(struct f2fs_sb_info * sbi)4641 static inline bool f2fs_is_readonly(struct f2fs_sb_info *sbi)
4642 {
4643 return f2fs_sb_has_readonly(sbi) || f2fs_readonly(sbi->sb);
4644 }
4645
f2fs_truncate_meta_inode_pages(struct f2fs_sb_info * sbi,block_t blkaddr,unsigned int cnt)4646 static inline void f2fs_truncate_meta_inode_pages(struct f2fs_sb_info *sbi,
4647 block_t blkaddr, unsigned int cnt)
4648 {
4649 bool need_submit = false;
4650 int i = 0;
4651
4652 do {
4653 struct page *page;
4654
4655 page = find_get_page(META_MAPPING(sbi), blkaddr + i);
4656 if (page) {
4657 if (PageWriteback(page))
4658 need_submit = true;
4659 f2fs_put_page(page, 0);
4660 }
4661 } while (++i < cnt && !need_submit);
4662
4663 if (need_submit)
4664 f2fs_submit_merged_write_cond(sbi, sbi->meta_inode,
4665 NULL, 0, DATA);
4666
4667 truncate_inode_pages_range(META_MAPPING(sbi),
4668 F2FS_BLK_TO_BYTES((loff_t)blkaddr),
4669 F2FS_BLK_END_BYTES((loff_t)(blkaddr + cnt - 1)));
4670 }
4671
f2fs_invalidate_internal_cache(struct f2fs_sb_info * sbi,block_t blkaddr)4672 static inline void f2fs_invalidate_internal_cache(struct f2fs_sb_info *sbi,
4673 block_t blkaddr)
4674 {
4675 f2fs_truncate_meta_inode_pages(sbi, blkaddr, 1);
4676 f2fs_invalidate_compress_page(sbi, blkaddr);
4677 }
4678
4679 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4680 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4681
4682 #endif /* _LINUX_F2FS_H */
4683