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 int write_io_size_bits; /* Write IO size bits */
151 block_t root_reserved_blocks; /* root reserved blocks */
152 kuid_t s_resuid; /* reserved blocks for uid */
153 kgid_t s_resgid; /* reserved blocks for gid */
154 int active_logs; /* # of active logs */
155 int inline_xattr_size; /* inline xattr size */
156 #ifdef CONFIG_F2FS_FAULT_INJECTION
157 struct f2fs_fault_info fault_info; /* For fault injection */
158 #endif
159 #ifdef CONFIG_QUOTA
160 /* Names of quota files with journalled quota */
161 char *s_qf_names[MAXQUOTAS];
162 int s_jquota_fmt; /* Format of quota to use */
163 #endif
164 /* For which write hints are passed down to block layer */
165 int alloc_mode; /* segment allocation policy */
166 int fsync_mode; /* fsync policy */
167 int fs_mode; /* fs mode: LFS or ADAPTIVE */
168 int bggc_mode; /* bggc mode: off, on or sync */
169 int memory_mode; /* memory mode */
170 int errors; /* errors parameter */
171 int discard_unit; /*
172 * discard command's offset/size should
173 * be aligned to this unit: block,
174 * segment or section
175 */
176 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
177 block_t unusable_cap_perc; /* percentage for cap */
178 block_t unusable_cap; /* Amount of space allowed to be
179 * unusable when disabling checkpoint
180 */
181
182 /* For compression */
183 unsigned char compress_algorithm; /* algorithm type */
184 unsigned char compress_log_size; /* cluster log size */
185 unsigned char compress_level; /* compress level */
186 bool compress_chksum; /* compressed data chksum */
187 unsigned char compress_ext_cnt; /* extension count */
188 unsigned char nocompress_ext_cnt; /* nocompress extension count */
189 int compress_mode; /* compression mode */
190 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
191 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
192 };
193
194 #define F2FS_FEATURE_ENCRYPT 0x00000001
195 #define F2FS_FEATURE_BLKZONED 0x00000002
196 #define F2FS_FEATURE_ATOMIC_WRITE 0x00000004
197 #define F2FS_FEATURE_EXTRA_ATTR 0x00000008
198 #define F2FS_FEATURE_PRJQUOTA 0x00000010
199 #define F2FS_FEATURE_INODE_CHKSUM 0x00000020
200 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x00000040
201 #define F2FS_FEATURE_QUOTA_INO 0x00000080
202 #define F2FS_FEATURE_INODE_CRTIME 0x00000100
203 #define F2FS_FEATURE_LOST_FOUND 0x00000200
204 #define F2FS_FEATURE_VERITY 0x00000400
205 #define F2FS_FEATURE_SB_CHKSUM 0x00000800
206 #define F2FS_FEATURE_CASEFOLD 0x00001000
207 #define F2FS_FEATURE_COMPRESSION 0x00002000
208 #define F2FS_FEATURE_RO 0x00004000
209
210 #define __F2FS_HAS_FEATURE(raw_super, mask) \
211 ((raw_super->feature & cpu_to_le32(mask)) != 0)
212 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
213
214 /*
215 * Default values for user and/or group using reserved blocks
216 */
217 #define F2FS_DEF_RESUID 0
218 #define F2FS_DEF_RESGID 0
219
220 /*
221 * For checkpoint manager
222 */
223 enum {
224 NAT_BITMAP,
225 SIT_BITMAP
226 };
227
228 #define CP_UMOUNT 0x00000001
229 #define CP_FASTBOOT 0x00000002
230 #define CP_SYNC 0x00000004
231 #define CP_RECOVERY 0x00000008
232 #define CP_DISCARD 0x00000010
233 #define CP_TRIMMED 0x00000020
234 #define CP_PAUSE 0x00000040
235 #define CP_RESIZE 0x00000080
236
237 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
238 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
239 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
240 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
241 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
242 #define DEF_CP_INTERVAL 60 /* 60 secs */
243 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
244 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
245 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
246 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
247
248 struct cp_control {
249 int reason;
250 __u64 trim_start;
251 __u64 trim_end;
252 __u64 trim_minlen;
253 };
254
255 /*
256 * indicate meta/data type
257 */
258 enum {
259 META_CP,
260 META_NAT,
261 META_SIT,
262 META_SSA,
263 META_MAX,
264 META_POR,
265 DATA_GENERIC, /* check range only */
266 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
267 DATA_GENERIC_ENHANCE_READ, /*
268 * strong check on range and segment
269 * bitmap but no warning due to race
270 * condition of read on truncated area
271 * by extent_cache
272 */
273 DATA_GENERIC_ENHANCE_UPDATE, /*
274 * strong check on range and segment
275 * bitmap for update case
276 */
277 META_GENERIC,
278 };
279
280 /* for the list of ino */
281 enum {
282 ORPHAN_INO, /* for orphan ino list */
283 APPEND_INO, /* for append ino list */
284 UPDATE_INO, /* for update ino list */
285 TRANS_DIR_INO, /* for transactions dir ino list */
286 FLUSH_INO, /* for multiple device flushing */
287 MAX_INO_ENTRY, /* max. list */
288 };
289
290 struct ino_entry {
291 struct list_head list; /* list head */
292 nid_t ino; /* inode number */
293 unsigned int dirty_device; /* dirty device bitmap */
294 };
295
296 /* for the list of inodes to be GCed */
297 struct inode_entry {
298 struct list_head list; /* list head */
299 struct inode *inode; /* vfs inode pointer */
300 };
301
302 struct fsync_node_entry {
303 struct list_head list; /* list head */
304 struct page *page; /* warm node page pointer */
305 unsigned int seq_id; /* sequence id */
306 };
307
308 struct ckpt_req {
309 struct completion wait; /* completion for checkpoint done */
310 struct llist_node llnode; /* llist_node to be linked in wait queue */
311 int ret; /* return code of checkpoint */
312 ktime_t queue_time; /* request queued time */
313 };
314
315 struct ckpt_req_control {
316 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
317 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
318 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
319 atomic_t issued_ckpt; /* # of actually issued ckpts */
320 atomic_t total_ckpt; /* # of total ckpts */
321 atomic_t queued_ckpt; /* # of queued ckpts */
322 struct llist_head issue_list; /* list for command issue */
323 spinlock_t stat_lock; /* lock for below checkpoint time stats */
324 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
325 unsigned int peak_time; /* peak wait time in msec until now */
326 };
327
328 /* for the bitmap indicate blocks to be discarded */
329 struct discard_entry {
330 struct list_head list; /* list head */
331 block_t start_blkaddr; /* start blockaddr of current segment */
332 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
333 };
334
335 /* minimum discard granularity, unit: block count */
336 #define MIN_DISCARD_GRANULARITY 1
337 /* default discard granularity of inner discard thread, unit: block count */
338 #define DEFAULT_DISCARD_GRANULARITY 16
339 /* default maximum discard granularity of ordered discard, unit: block count */
340 #define DEFAULT_MAX_ORDERED_DISCARD_GRANULARITY 16
341
342 /* max discard pend list number */
343 #define MAX_PLIST_NUM 512
344 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
345 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
346
347 enum {
348 D_PREP, /* initial */
349 D_PARTIAL, /* partially submitted */
350 D_SUBMIT, /* all submitted */
351 D_DONE, /* finished */
352 };
353
354 struct discard_info {
355 block_t lstart; /* logical start address */
356 block_t len; /* length */
357 block_t start; /* actual start address in dev */
358 };
359
360 struct discard_cmd {
361 struct rb_node rb_node; /* rb node located in rb-tree */
362 struct discard_info di; /* discard info */
363 struct list_head list; /* command list */
364 struct completion wait; /* compleation */
365 struct block_device *bdev; /* bdev */
366 unsigned short ref; /* reference count */
367 unsigned char state; /* state */
368 unsigned char queued; /* queued discard */
369 int error; /* bio error */
370 spinlock_t lock; /* for state/bio_ref updating */
371 unsigned short bio_ref; /* bio reference count */
372 };
373
374 enum {
375 DPOLICY_BG,
376 DPOLICY_FORCE,
377 DPOLICY_FSTRIM,
378 DPOLICY_UMOUNT,
379 MAX_DPOLICY,
380 };
381
382 struct discard_policy {
383 int type; /* type of discard */
384 unsigned int min_interval; /* used for candidates exist */
385 unsigned int mid_interval; /* used for device busy */
386 unsigned int max_interval; /* used for candidates not exist */
387 unsigned int max_requests; /* # of discards issued per round */
388 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
389 bool io_aware; /* issue discard in idle time */
390 bool sync; /* submit discard with REQ_SYNC flag */
391 bool ordered; /* issue discard by lba order */
392 bool timeout; /* discard timeout for put_super */
393 unsigned int granularity; /* discard granularity */
394 };
395
396 struct discard_cmd_control {
397 struct task_struct *f2fs_issue_discard; /* discard thread */
398 struct list_head entry_list; /* 4KB discard entry list */
399 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
400 struct list_head wait_list; /* store on-flushing entries */
401 struct list_head fstrim_list; /* in-flight discard from fstrim */
402 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
403 struct mutex cmd_lock;
404 unsigned int nr_discards; /* # of discards in the list */
405 unsigned int max_discards; /* max. discards to be issued */
406 unsigned int max_discard_request; /* max. discard request per round */
407 unsigned int min_discard_issue_time; /* min. interval between discard issue */
408 unsigned int mid_discard_issue_time; /* mid. interval between discard issue */
409 unsigned int max_discard_issue_time; /* max. interval between discard issue */
410 unsigned int discard_io_aware_gran; /* minimum discard granularity not be aware of I/O */
411 unsigned int discard_urgent_util; /* utilization which issue discard proactively */
412 unsigned int discard_granularity; /* discard granularity */
413 unsigned int max_ordered_discard; /* maximum discard granularity issued by lba order */
414 unsigned int undiscard_blks; /* # of undiscard blocks */
415 unsigned int next_pos; /* next discard position */
416 atomic_t issued_discard; /* # of issued discard */
417 atomic_t queued_discard; /* # of queued discard */
418 atomic_t discard_cmd_cnt; /* # of cached cmd count */
419 struct rb_root_cached root; /* root of discard rb-tree */
420 bool rbtree_check; /* config for consistence check */
421 bool discard_wake; /* to wake up discard thread */
422 };
423
424 /* for the list of fsync inodes, used only during recovery */
425 struct fsync_inode_entry {
426 struct list_head list; /* list head */
427 struct inode *inode; /* vfs inode pointer */
428 block_t blkaddr; /* block address locating the last fsync */
429 block_t last_dentry; /* block address locating the last dentry */
430 };
431
432 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
433 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
434
435 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
436 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
437 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
438 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
439
440 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
441 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
442
update_nats_in_cursum(struct f2fs_journal * journal,int i)443 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
444 {
445 int before = nats_in_cursum(journal);
446
447 journal->n_nats = cpu_to_le16(before + i);
448 return before;
449 }
450
update_sits_in_cursum(struct f2fs_journal * journal,int i)451 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
452 {
453 int before = sits_in_cursum(journal);
454
455 journal->n_sits = cpu_to_le16(before + i);
456 return before;
457 }
458
__has_cursum_space(struct f2fs_journal * journal,int size,int type)459 static inline bool __has_cursum_space(struct f2fs_journal *journal,
460 int size, int type)
461 {
462 if (type == NAT_JOURNAL)
463 return size <= MAX_NAT_JENTRIES(journal);
464 return size <= MAX_SIT_JENTRIES(journal);
465 }
466
467 /* for inline stuff */
468 #define DEF_INLINE_RESERVED_SIZE 1
469 static inline int get_extra_isize(struct inode *inode);
470 static inline int get_inline_xattr_addrs(struct inode *inode);
471 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
472 (CUR_ADDRS_PER_INODE(inode) - \
473 get_inline_xattr_addrs(inode) - \
474 DEF_INLINE_RESERVED_SIZE))
475
476 /* for inline dir */
477 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
478 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
479 BITS_PER_BYTE + 1))
480 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
481 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
482 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
483 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
484 NR_INLINE_DENTRY(inode) + \
485 INLINE_DENTRY_BITMAP_SIZE(inode)))
486
487 /*
488 * For INODE and NODE manager
489 */
490 /* for directory operations */
491
492 struct f2fs_filename {
493 /*
494 * The filename the user specified. This is NULL for some
495 * filesystem-internal operations, e.g. converting an inline directory
496 * to a non-inline one, or roll-forward recovering an encrypted dentry.
497 */
498 const struct qstr *usr_fname;
499
500 /*
501 * The on-disk filename. For encrypted directories, this is encrypted.
502 * This may be NULL for lookups in an encrypted dir without the key.
503 */
504 struct fscrypt_str disk_name;
505
506 /* The dirhash of this filename */
507 f2fs_hash_t hash;
508
509 #ifdef CONFIG_FS_ENCRYPTION
510 /*
511 * For lookups in encrypted directories: either the buffer backing
512 * disk_name, or a buffer that holds the decoded no-key name.
513 */
514 struct fscrypt_str crypto_buf;
515 #endif
516 #if IS_ENABLED(CONFIG_UNICODE)
517 /*
518 * For casefolded directories: the casefolded name, but it's left NULL
519 * if the original name is not valid Unicode, if the original name is
520 * "." or "..", if the directory is both casefolded and encrypted and
521 * its encryption key is unavailable, or if the filesystem is doing an
522 * internal operation where usr_fname is also NULL. In all these cases
523 * we fall back to treating the name as an opaque byte sequence.
524 */
525 struct fscrypt_str cf_name;
526 #endif
527 };
528
529 struct f2fs_dentry_ptr {
530 struct inode *inode;
531 void *bitmap;
532 struct f2fs_dir_entry *dentry;
533 __u8 (*filename)[F2FS_SLOT_LEN];
534 int max;
535 int nr_bitmap;
536 };
537
make_dentry_ptr_block(struct inode * inode,struct f2fs_dentry_ptr * d,struct f2fs_dentry_block * t)538 static inline void make_dentry_ptr_block(struct inode *inode,
539 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
540 {
541 d->inode = inode;
542 d->max = NR_DENTRY_IN_BLOCK;
543 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
544 d->bitmap = t->dentry_bitmap;
545 d->dentry = t->dentry;
546 d->filename = t->filename;
547 }
548
make_dentry_ptr_inline(struct inode * inode,struct f2fs_dentry_ptr * d,void * t)549 static inline void make_dentry_ptr_inline(struct inode *inode,
550 struct f2fs_dentry_ptr *d, void *t)
551 {
552 int entry_cnt = NR_INLINE_DENTRY(inode);
553 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
554 int reserved_size = INLINE_RESERVED_SIZE(inode);
555
556 d->inode = inode;
557 d->max = entry_cnt;
558 d->nr_bitmap = bitmap_size;
559 d->bitmap = t;
560 d->dentry = t + bitmap_size + reserved_size;
561 d->filename = t + bitmap_size + reserved_size +
562 SIZE_OF_DIR_ENTRY * entry_cnt;
563 }
564
565 /*
566 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
567 * as its node offset to distinguish from index node blocks.
568 * But some bits are used to mark the node block.
569 */
570 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
571 >> OFFSET_BIT_SHIFT)
572 enum {
573 ALLOC_NODE, /* allocate a new node page if needed */
574 LOOKUP_NODE, /* look up a node without readahead */
575 LOOKUP_NODE_RA, /*
576 * look up a node with readahead called
577 * by get_data_block.
578 */
579 };
580
581 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
582
583 /* congestion wait timeout value, default: 20ms */
584 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
585
586 /* maximum retry quota flush count */
587 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
588
589 /* maximum retry of EIO'ed page */
590 #define MAX_RETRY_PAGE_EIO 100
591
592 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
593
594 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
595
596 /* dirty segments threshold for triggering CP */
597 #define DEFAULT_DIRTY_THRESHOLD 4
598
599 #define RECOVERY_MAX_RA_BLOCKS BIO_MAX_VECS
600 #define RECOVERY_MIN_RA_BLOCKS 1
601
602 #define F2FS_ONSTACK_PAGES 16 /* nr of onstack pages */
603
604 /* for in-memory extent cache entry */
605 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
606
607 /* number of extent info in extent cache we try to shrink */
608 #define READ_EXTENT_CACHE_SHRINK_NUMBER 128
609
610 /* number of age extent info in extent cache we try to shrink */
611 #define AGE_EXTENT_CACHE_SHRINK_NUMBER 128
612 #define LAST_AGE_WEIGHT 30
613 #define SAME_AGE_REGION 1024
614
615 /*
616 * Define data block with age less than 1GB as hot data
617 * define data block with age less than 10GB but more than 1GB as warm data
618 */
619 #define DEF_HOT_DATA_AGE_THRESHOLD 262144
620 #define DEF_WARM_DATA_AGE_THRESHOLD 2621440
621
622 /* extent cache type */
623 enum extent_type {
624 EX_READ,
625 EX_BLOCK_AGE,
626 NR_EXTENT_CACHES,
627 };
628
629 struct extent_info {
630 unsigned int fofs; /* start offset in a file */
631 unsigned int len; /* length of the extent */
632 union {
633 /* read extent_cache */
634 struct {
635 /* start block address of the extent */
636 block_t blk;
637 #ifdef CONFIG_F2FS_FS_COMPRESSION
638 /* physical extent length of compressed blocks */
639 unsigned int c_len;
640 #endif
641 };
642 /* block age extent_cache */
643 struct {
644 /* block age of the extent */
645 unsigned long long age;
646 /* last total blocks allocated */
647 unsigned long long last_blocks;
648 };
649 };
650 };
651
652 struct extent_node {
653 struct rb_node rb_node; /* rb node located in rb-tree */
654 struct extent_info ei; /* extent info */
655 struct list_head list; /* node in global extent list of sbi */
656 struct extent_tree *et; /* extent tree pointer */
657 };
658
659 struct extent_tree {
660 nid_t ino; /* inode number */
661 enum extent_type type; /* keep the extent tree type */
662 struct rb_root_cached root; /* root of extent info rb-tree */
663 struct extent_node *cached_en; /* recently accessed extent node */
664 struct list_head list; /* to be used by sbi->zombie_list */
665 rwlock_t lock; /* protect extent info rb-tree */
666 atomic_t node_cnt; /* # of extent node in rb-tree*/
667 bool largest_updated; /* largest extent updated */
668 struct extent_info largest; /* largest cached extent for EX_READ */
669 };
670
671 struct extent_tree_info {
672 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
673 struct mutex extent_tree_lock; /* locking extent radix tree */
674 struct list_head extent_list; /* lru list for shrinker */
675 spinlock_t extent_lock; /* locking extent lru list */
676 atomic_t total_ext_tree; /* extent tree count */
677 struct list_head zombie_list; /* extent zombie tree list */
678 atomic_t total_zombie_tree; /* extent zombie tree count */
679 atomic_t total_ext_node; /* extent info count */
680 };
681
682 /*
683 * State of block returned by f2fs_map_blocks.
684 */
685 #define F2FS_MAP_NEW (1U << 0)
686 #define F2FS_MAP_MAPPED (1U << 1)
687 #define F2FS_MAP_DELALLOC (1U << 2)
688 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
689 F2FS_MAP_DELALLOC)
690
691 struct f2fs_map_blocks {
692 struct block_device *m_bdev; /* for multi-device dio */
693 block_t m_pblk;
694 block_t m_lblk;
695 unsigned int m_len;
696 unsigned int m_flags;
697 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
698 pgoff_t *m_next_extent; /* point to next possible extent */
699 int m_seg_type;
700 bool m_may_create; /* indicate it is from write path */
701 bool m_multidev_dio; /* indicate it allows multi-device dio */
702 };
703
704 /* for flag in get_data_block */
705 enum {
706 F2FS_GET_BLOCK_DEFAULT,
707 F2FS_GET_BLOCK_FIEMAP,
708 F2FS_GET_BLOCK_BMAP,
709 F2FS_GET_BLOCK_DIO,
710 F2FS_GET_BLOCK_PRE_DIO,
711 F2FS_GET_BLOCK_PRE_AIO,
712 F2FS_GET_BLOCK_PRECACHE,
713 };
714
715 /*
716 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
717 */
718 #define FADVISE_COLD_BIT 0x01
719 #define FADVISE_LOST_PINO_BIT 0x02
720 #define FADVISE_ENCRYPT_BIT 0x04
721 #define FADVISE_ENC_NAME_BIT 0x08
722 #define FADVISE_KEEP_SIZE_BIT 0x10
723 #define FADVISE_HOT_BIT 0x20
724 #define FADVISE_VERITY_BIT 0x40
725 #define FADVISE_TRUNC_BIT 0x80
726
727 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
728
729 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
730 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
731 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
732
733 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
734 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
735 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
736
737 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
738 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
739
740 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
741 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
742
743 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
744 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
745
746 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
747 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
748 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
749
750 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
751 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
752
753 #define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
754 #define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
755 #define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
756
757 #define DEF_DIR_LEVEL 0
758
759 enum {
760 GC_FAILURE_PIN,
761 MAX_GC_FAILURE
762 };
763
764 /* used for f2fs_inode_info->flags */
765 enum {
766 FI_NEW_INODE, /* indicate newly allocated inode */
767 FI_DIRTY_INODE, /* indicate inode is dirty or not */
768 FI_AUTO_RECOVER, /* indicate inode is recoverable */
769 FI_DIRTY_DIR, /* indicate directory has dirty pages */
770 FI_INC_LINK, /* need to increment i_nlink */
771 FI_ACL_MODE, /* indicate acl mode */
772 FI_NO_ALLOC, /* should not allocate any blocks */
773 FI_FREE_NID, /* free allocated nide */
774 FI_NO_EXTENT, /* not to use the extent cache */
775 FI_INLINE_XATTR, /* used for inline xattr */
776 FI_INLINE_DATA, /* used for inline data*/
777 FI_INLINE_DENTRY, /* used for inline dentry */
778 FI_APPEND_WRITE, /* inode has appended data */
779 FI_UPDATE_WRITE, /* inode has in-place-update data */
780 FI_NEED_IPU, /* used for ipu per file */
781 FI_ATOMIC_FILE, /* indicate atomic file */
782 FI_DATA_EXIST, /* indicate data exists */
783 FI_INLINE_DOTS, /* indicate inline dot dentries */
784 FI_SKIP_WRITES, /* should skip data page writeback */
785 FI_OPU_WRITE, /* used for opu per file */
786 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
787 FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
788 FI_HOT_DATA, /* indicate file is hot */
789 FI_EXTRA_ATTR, /* indicate file has extra attribute */
790 FI_PROJ_INHERIT, /* indicate file inherits projectid */
791 FI_PIN_FILE, /* indicate file should not be gced */
792 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
793 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
794 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
795 FI_MMAP_FILE, /* indicate file was mmapped */
796 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
797 FI_COMPRESS_RELEASED, /* compressed blocks were released */
798 FI_ALIGNED_WRITE, /* enable aligned write */
799 FI_COW_FILE, /* indicate COW file */
800 FI_ATOMIC_COMMITTED, /* indicate atomic commit completed except disk sync */
801 FI_ATOMIC_REPLACE, /* indicate atomic replace */
802 FI_MAX, /* max flag, never be used */
803 };
804
805 struct f2fs_inode_info {
806 struct inode vfs_inode; /* serve a vfs inode */
807 unsigned long i_flags; /* keep an inode flags for ioctl */
808 unsigned char i_advise; /* use to give file attribute hints */
809 unsigned char i_dir_level; /* use for dentry level for large dir */
810 unsigned int i_current_depth; /* only for directory depth */
811 /* for gc failure statistic */
812 unsigned int i_gc_failures[MAX_GC_FAILURE];
813 unsigned int i_pino; /* parent inode number */
814 umode_t i_acl_mode; /* keep file acl mode temporarily */
815
816 /* Use below internally in f2fs*/
817 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
818 struct f2fs_rwsem i_sem; /* protect fi info */
819 atomic_t dirty_pages; /* # of dirty pages */
820 f2fs_hash_t chash; /* hash value of given file name */
821 unsigned int clevel; /* maximum level of given file name */
822 struct task_struct *task; /* lookup and create consistency */
823 struct task_struct *cp_task; /* separate cp/wb IO stats*/
824 struct task_struct *wb_task; /* indicate inode is in context of writeback */
825 nid_t i_xattr_nid; /* node id that contains xattrs */
826 loff_t last_disk_size; /* lastly written file size */
827 spinlock_t i_size_lock; /* protect last_disk_size */
828
829 #ifdef CONFIG_QUOTA
830 struct dquot __rcu *i_dquot[MAXQUOTAS];
831
832 /* quota space reservation, managed internally by quota code */
833 qsize_t i_reserved_quota;
834 #endif
835 struct list_head dirty_list; /* dirty list for dirs and files */
836 struct list_head gdirty_list; /* linked in global dirty list */
837 struct task_struct *atomic_write_task; /* store atomic write task */
838 struct extent_tree *extent_tree[NR_EXTENT_CACHES];
839 /* cached extent_tree entry */
840 struct inode *cow_inode; /* copy-on-write inode for atomic write */
841
842 /* avoid racing between foreground op and gc */
843 struct f2fs_rwsem i_gc_rwsem[2];
844 struct f2fs_rwsem i_xattr_sem; /* avoid racing between reading and changing EAs */
845
846 int i_extra_isize; /* size of extra space located in i_addr */
847 kprojid_t i_projid; /* id for project quota */
848 int i_inline_xattr_size; /* inline xattr size */
849 struct timespec64 i_crtime; /* inode creation time */
850 struct timespec64 i_disk_time[3];/* inode disk times */
851
852 /* for file compress */
853 atomic_t i_compr_blocks; /* # of compressed blocks */
854 unsigned char i_compress_algorithm; /* algorithm type */
855 unsigned char i_log_cluster_size; /* log of cluster size */
856 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
857 unsigned char i_compress_flag; /* compress flag */
858 unsigned int i_cluster_size; /* cluster size */
859
860 unsigned int atomic_write_cnt;
861 loff_t original_i_size; /* original i_size before atomic write */
862 };
863
get_read_extent_info(struct extent_info * ext,struct f2fs_extent * i_ext)864 static inline void get_read_extent_info(struct extent_info *ext,
865 struct f2fs_extent *i_ext)
866 {
867 ext->fofs = le32_to_cpu(i_ext->fofs);
868 ext->blk = le32_to_cpu(i_ext->blk);
869 ext->len = le32_to_cpu(i_ext->len);
870 }
871
set_raw_read_extent(struct extent_info * ext,struct f2fs_extent * i_ext)872 static inline void set_raw_read_extent(struct extent_info *ext,
873 struct f2fs_extent *i_ext)
874 {
875 i_ext->fofs = cpu_to_le32(ext->fofs);
876 i_ext->blk = cpu_to_le32(ext->blk);
877 i_ext->len = cpu_to_le32(ext->len);
878 }
879
__is_discard_mergeable(struct discard_info * back,struct discard_info * front,unsigned int max_len)880 static inline bool __is_discard_mergeable(struct discard_info *back,
881 struct discard_info *front, unsigned int max_len)
882 {
883 return (back->lstart + back->len == front->lstart) &&
884 (back->len + front->len <= max_len);
885 }
886
__is_discard_back_mergeable(struct discard_info * cur,struct discard_info * back,unsigned int max_len)887 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
888 struct discard_info *back, unsigned int max_len)
889 {
890 return __is_discard_mergeable(back, cur, max_len);
891 }
892
__is_discard_front_mergeable(struct discard_info * cur,struct discard_info * front,unsigned int max_len)893 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
894 struct discard_info *front, unsigned int max_len)
895 {
896 return __is_discard_mergeable(cur, front, max_len);
897 }
898
899 /*
900 * For free nid management
901 */
902 enum nid_state {
903 FREE_NID, /* newly added to free nid list */
904 PREALLOC_NID, /* it is preallocated */
905 MAX_NID_STATE,
906 };
907
908 enum nat_state {
909 TOTAL_NAT,
910 DIRTY_NAT,
911 RECLAIMABLE_NAT,
912 MAX_NAT_STATE,
913 };
914
915 struct f2fs_nm_info {
916 block_t nat_blkaddr; /* base disk address of NAT */
917 nid_t max_nid; /* maximum possible node ids */
918 nid_t available_nids; /* # of available node ids */
919 nid_t next_scan_nid; /* the next nid to be scanned */
920 nid_t max_rf_node_blocks; /* max # of nodes for recovery */
921 unsigned int ram_thresh; /* control the memory footprint */
922 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
923 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
924
925 /* NAT cache management */
926 struct radix_tree_root nat_root;/* root of the nat entry cache */
927 struct radix_tree_root nat_set_root;/* root of the nat set cache */
928 struct f2fs_rwsem nat_tree_lock; /* protect nat entry tree */
929 struct list_head nat_entries; /* cached nat entry list (clean) */
930 spinlock_t nat_list_lock; /* protect clean nat entry list */
931 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
932 unsigned int nat_blocks; /* # of nat blocks */
933
934 /* free node ids management */
935 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
936 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
937 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
938 spinlock_t nid_list_lock; /* protect nid lists ops */
939 struct mutex build_lock; /* lock for build free nids */
940 unsigned char **free_nid_bitmap;
941 unsigned char *nat_block_bitmap;
942 unsigned short *free_nid_count; /* free nid count of NAT block */
943
944 /* for checkpoint */
945 char *nat_bitmap; /* NAT bitmap pointer */
946
947 unsigned int nat_bits_blocks; /* # of nat bits blocks */
948 unsigned char *nat_bits; /* NAT bits blocks */
949 unsigned char *full_nat_bits; /* full NAT pages */
950 unsigned char *empty_nat_bits; /* empty NAT pages */
951 #ifdef CONFIG_F2FS_CHECK_FS
952 char *nat_bitmap_mir; /* NAT bitmap mirror */
953 #endif
954 int bitmap_size; /* bitmap size */
955 };
956
957 /*
958 * this structure is used as one of function parameters.
959 * all the information are dedicated to a given direct node block determined
960 * by the data offset in a file.
961 */
962 struct dnode_of_data {
963 struct inode *inode; /* vfs inode pointer */
964 struct page *inode_page; /* its inode page, NULL is possible */
965 struct page *node_page; /* cached direct node page */
966 nid_t nid; /* node id of the direct node block */
967 unsigned int ofs_in_node; /* data offset in the node page */
968 bool inode_page_locked; /* inode page is locked or not */
969 bool node_changed; /* is node block changed */
970 char cur_level; /* level of hole node page */
971 char max_level; /* level of current page located */
972 block_t data_blkaddr; /* block address of the node block */
973 };
974
set_new_dnode(struct dnode_of_data * dn,struct inode * inode,struct page * ipage,struct page * npage,nid_t nid)975 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
976 struct page *ipage, struct page *npage, nid_t nid)
977 {
978 memset(dn, 0, sizeof(*dn));
979 dn->inode = inode;
980 dn->inode_page = ipage;
981 dn->node_page = npage;
982 dn->nid = nid;
983 }
984
985 /*
986 * For SIT manager
987 *
988 * By default, there are 6 active log areas across the whole main area.
989 * When considering hot and cold data separation to reduce cleaning overhead,
990 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
991 * respectively.
992 * In the current design, you should not change the numbers intentionally.
993 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
994 * logs individually according to the underlying devices. (default: 6)
995 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
996 * data and 8 for node logs.
997 */
998 #define NR_CURSEG_DATA_TYPE (3)
999 #define NR_CURSEG_NODE_TYPE (3)
1000 #define NR_CURSEG_INMEM_TYPE (2)
1001 #define NR_CURSEG_RO_TYPE (2)
1002 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
1003 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
1004
1005 enum {
1006 CURSEG_HOT_DATA = 0, /* directory entry blocks */
1007 CURSEG_WARM_DATA, /* data blocks */
1008 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
1009 CURSEG_HOT_NODE, /* direct node blocks of directory files */
1010 CURSEG_WARM_NODE, /* direct node blocks of normal files */
1011 CURSEG_COLD_NODE, /* indirect node blocks */
1012 NR_PERSISTENT_LOG, /* number of persistent log */
1013 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
1014 /* pinned file that needs consecutive block address */
1015 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
1016 NO_CHECK_TYPE, /* number of persistent & inmem log */
1017 };
1018
1019 struct flush_cmd {
1020 struct completion wait;
1021 struct llist_node llnode;
1022 nid_t ino;
1023 int ret;
1024 };
1025
1026 struct flush_cmd_control {
1027 struct task_struct *f2fs_issue_flush; /* flush thread */
1028 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1029 atomic_t issued_flush; /* # of issued flushes */
1030 atomic_t queued_flush; /* # of queued flushes */
1031 struct llist_head issue_list; /* list for command issue */
1032 struct llist_node *dispatch_list; /* list for command dispatch */
1033 };
1034
1035 struct f2fs_sm_info {
1036 struct sit_info *sit_info; /* whole segment information */
1037 struct free_segmap_info *free_info; /* free segment information */
1038 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1039 struct curseg_info *curseg_array; /* active segment information */
1040
1041 struct f2fs_rwsem curseg_lock; /* for preventing curseg change */
1042
1043 block_t seg0_blkaddr; /* block address of 0'th segment */
1044 block_t main_blkaddr; /* start block address of main area */
1045 block_t ssa_blkaddr; /* start block address of SSA area */
1046
1047 unsigned int segment_count; /* total # of segments */
1048 unsigned int main_segments; /* # of segments in main area */
1049 unsigned int reserved_segments; /* # of reserved segments */
1050 unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
1051 unsigned int ovp_segments; /* # of overprovision segments */
1052
1053 /* a threshold to reclaim prefree segments */
1054 unsigned int rec_prefree_segments;
1055
1056 struct list_head sit_entry_set; /* sit entry set list */
1057
1058 unsigned int ipu_policy; /* in-place-update policy */
1059 unsigned int min_ipu_util; /* in-place-update threshold */
1060 unsigned int min_fsync_blocks; /* threshold for fsync */
1061 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1062 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1063 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1064
1065 /* for flush command control */
1066 struct flush_cmd_control *fcc_info;
1067
1068 /* for discard command control */
1069 struct discard_cmd_control *dcc_info;
1070 };
1071
1072 /*
1073 * For superblock
1074 */
1075 /*
1076 * COUNT_TYPE for monitoring
1077 *
1078 * f2fs monitors the number of several block types such as on-writeback,
1079 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1080 */
1081 #define WB_DATA_TYPE(p, f) \
1082 (f || f2fs_is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1083 enum count_type {
1084 F2FS_DIRTY_DENTS,
1085 F2FS_DIRTY_DATA,
1086 F2FS_DIRTY_QDATA,
1087 F2FS_DIRTY_NODES,
1088 F2FS_DIRTY_META,
1089 F2FS_DIRTY_IMETA,
1090 F2FS_WB_CP_DATA,
1091 F2FS_WB_DATA,
1092 F2FS_RD_DATA,
1093 F2FS_RD_NODE,
1094 F2FS_RD_META,
1095 F2FS_DIO_WRITE,
1096 F2FS_DIO_READ,
1097 NR_COUNT_TYPE,
1098 };
1099
1100 /*
1101 * The below are the page types of bios used in submit_bio().
1102 * The available types are:
1103 * DATA User data pages. It operates as async mode.
1104 * NODE Node pages. It operates as async mode.
1105 * META FS metadata pages such as SIT, NAT, CP.
1106 * NR_PAGE_TYPE The number of page types.
1107 * META_FLUSH Make sure the previous pages are written
1108 * with waiting the bio's completion
1109 * ... Only can be used with META.
1110 */
1111 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
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 retry:1; /* need to reallocate block address */
1207 unsigned int encrypted:1; /* indicate file is encrypted */
1208 unsigned int post_read:1; /* require post read */
1209 enum iostat_type io_type; /* io type */
1210 struct writeback_control *io_wbc; /* writeback control */
1211 struct bio **bio; /* bio for ipu */
1212 sector_t *last_block; /* last block number in bio */
1213 };
1214
1215 struct bio_entry {
1216 struct bio *bio;
1217 struct list_head list;
1218 };
1219
1220 #define is_read_io(rw) ((rw) == READ)
1221 struct f2fs_bio_info {
1222 struct f2fs_sb_info *sbi; /* f2fs superblock */
1223 struct bio *bio; /* bios to merge */
1224 sector_t last_block_in_bio; /* last block number */
1225 struct f2fs_io_info fio; /* store buffered io info. */
1226 #ifdef CONFIG_BLK_DEV_ZONED
1227 struct completion zone_wait; /* condition value for the previous open zone to close */
1228 struct bio *zone_pending_bio; /* pending bio for the previous zone */
1229 void *bi_private; /* previous bi_private for pending bio */
1230 #endif
1231 struct f2fs_rwsem io_rwsem; /* blocking op for bio */
1232 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1233 struct list_head io_list; /* track fios */
1234 struct list_head bio_list; /* bio entry list head */
1235 struct f2fs_rwsem bio_list_lock; /* lock to protect bio entry list */
1236 };
1237
1238 #define FDEV(i) (sbi->devs[i])
1239 #define RDEV(i) (raw_super->devs[i])
1240 struct f2fs_dev_info {
1241 struct block_device *bdev;
1242 char path[MAX_PATH_LEN];
1243 unsigned int total_segments;
1244 block_t start_blk;
1245 block_t end_blk;
1246 #ifdef CONFIG_BLK_DEV_ZONED
1247 unsigned int nr_blkz; /* Total number of zones */
1248 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1249 #endif
1250 };
1251
1252 enum inode_type {
1253 DIR_INODE, /* for dirty dir inode */
1254 FILE_INODE, /* for dirty regular/symlink inode */
1255 DIRTY_META, /* for all dirtied inode metadata */
1256 NR_INODE_TYPE,
1257 };
1258
1259 /* for inner inode cache management */
1260 struct inode_management {
1261 struct radix_tree_root ino_root; /* ino entry array */
1262 spinlock_t ino_lock; /* for ino entry lock */
1263 struct list_head ino_list; /* inode list head */
1264 unsigned long ino_num; /* number of entries */
1265 };
1266
1267 /* for GC_AT */
1268 struct atgc_management {
1269 bool atgc_enabled; /* ATGC is enabled or not */
1270 struct rb_root_cached root; /* root of victim rb-tree */
1271 struct list_head victim_list; /* linked with all victim entries */
1272 unsigned int victim_count; /* victim count in rb-tree */
1273 unsigned int candidate_ratio; /* candidate ratio */
1274 unsigned int max_candidate_count; /* max candidate count */
1275 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1276 unsigned long long age_threshold; /* age threshold */
1277 };
1278
1279 struct f2fs_gc_control {
1280 unsigned int victim_segno; /* target victim segment number */
1281 int init_gc_type; /* FG_GC or BG_GC */
1282 bool no_bg_gc; /* check the space and stop bg_gc */
1283 bool should_migrate_blocks; /* should migrate blocks */
1284 bool err_gc_skipped; /* return EAGAIN if GC skipped */
1285 unsigned int nr_free_secs; /* # of free sections to do GC */
1286 };
1287
1288 /*
1289 * For s_flag in struct f2fs_sb_info
1290 * Modification on enum should be synchronized with s_flag array
1291 */
1292 enum {
1293 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1294 SBI_IS_CLOSE, /* specify unmounting */
1295 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1296 SBI_POR_DOING, /* recovery is doing or not */
1297 SBI_NEED_SB_WRITE, /* need to recover superblock */
1298 SBI_NEED_CP, /* need to checkpoint */
1299 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1300 SBI_IS_RECOVERED, /* recovered orphan/data */
1301 SBI_CP_DISABLED, /* CP was disabled last mount */
1302 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1303 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1304 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1305 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1306 SBI_IS_RESIZEFS, /* resizefs is in process */
1307 SBI_IS_FREEZING, /* freezefs is in process */
1308 SBI_IS_WRITABLE, /* remove ro mountoption transiently */
1309 MAX_SBI_FLAG,
1310 };
1311
1312 enum {
1313 CP_TIME,
1314 REQ_TIME,
1315 DISCARD_TIME,
1316 GC_TIME,
1317 DISABLE_TIME,
1318 UMOUNT_DISCARD_TIMEOUT,
1319 MAX_TIME,
1320 };
1321
1322 /* Note that you need to keep synchronization with this gc_mode_names array */
1323 enum {
1324 GC_NORMAL,
1325 GC_IDLE_CB,
1326 GC_IDLE_GREEDY,
1327 GC_IDLE_AT,
1328 GC_URGENT_HIGH,
1329 GC_URGENT_LOW,
1330 GC_URGENT_MID,
1331 MAX_GC_MODE,
1332 };
1333
1334 enum {
1335 BGGC_MODE_ON, /* background gc is on */
1336 BGGC_MODE_OFF, /* background gc is off */
1337 BGGC_MODE_SYNC, /*
1338 * background gc is on, migrating blocks
1339 * like foreground gc
1340 */
1341 };
1342
1343 enum {
1344 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1345 FS_MODE_LFS, /* use lfs allocation only */
1346 FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
1347 FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
1348 };
1349
1350 enum {
1351 ALLOC_MODE_DEFAULT, /* stay default */
1352 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1353 };
1354
1355 enum fsync_mode {
1356 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1357 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1358 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1359 };
1360
1361 enum {
1362 COMPR_MODE_FS, /*
1363 * automatically compress compression
1364 * enabled files
1365 */
1366 COMPR_MODE_USER, /*
1367 * automatical compression is disabled.
1368 * user can control the file compression
1369 * using ioctls
1370 */
1371 };
1372
1373 enum {
1374 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1375 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1376 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1377 };
1378
1379 enum {
1380 MEMORY_MODE_NORMAL, /* memory mode for normal devices */
1381 MEMORY_MODE_LOW, /* memory mode for low memry devices */
1382 };
1383
1384 enum errors_option {
1385 MOUNT_ERRORS_READONLY, /* remount fs ro on errors */
1386 MOUNT_ERRORS_CONTINUE, /* continue on errors */
1387 MOUNT_ERRORS_PANIC, /* panic on errors */
1388 };
1389
1390 enum {
1391 BACKGROUND,
1392 FOREGROUND,
1393 MAX_CALL_TYPE,
1394 TOTAL_CALL = FOREGROUND,
1395 };
1396
1397 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1398 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1399 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1400
1401 /*
1402 * Layout of f2fs page.private:
1403 *
1404 * Layout A: lowest bit should be 1
1405 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1406 * bit 0 PAGE_PRIVATE_NOT_POINTER
1407 * bit 1 PAGE_PRIVATE_DUMMY_WRITE
1408 * bit 2 PAGE_PRIVATE_ONGOING_MIGRATION
1409 * bit 3 PAGE_PRIVATE_INLINE_INODE
1410 * bit 4 PAGE_PRIVATE_REF_RESOURCE
1411 * bit 5- f2fs private data
1412 *
1413 * Layout B: lowest bit should be 0
1414 * page.private is a wrapped pointer.
1415 */
1416 enum {
1417 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1418 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1419 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1420 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1421 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1422 PAGE_PRIVATE_MAX
1423 };
1424
1425 /* For compression */
1426 enum compress_algorithm_type {
1427 COMPRESS_LZO,
1428 COMPRESS_LZ4,
1429 COMPRESS_ZSTD,
1430 COMPRESS_LZORLE,
1431 COMPRESS_MAX,
1432 };
1433
1434 enum compress_flag {
1435 COMPRESS_CHKSUM,
1436 COMPRESS_MAX_FLAG,
1437 };
1438
1439 #define COMPRESS_WATERMARK 20
1440 #define COMPRESS_PERCENT 20
1441
1442 #define COMPRESS_DATA_RESERVED_SIZE 4
1443 struct compress_data {
1444 __le32 clen; /* compressed data size */
1445 __le32 chksum; /* compressed data chksum */
1446 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1447 u8 cdata[]; /* compressed data */
1448 };
1449
1450 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1451
1452 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1453
1454 #define F2FS_ZSTD_DEFAULT_CLEVEL 1
1455
1456 #define COMPRESS_LEVEL_OFFSET 8
1457
1458 /* compress context */
1459 struct compress_ctx {
1460 struct inode *inode; /* inode the context belong to */
1461 pgoff_t cluster_idx; /* cluster index number */
1462 unsigned int cluster_size; /* page count in cluster */
1463 unsigned int log_cluster_size; /* log of cluster size */
1464 struct page **rpages; /* pages store raw data in cluster */
1465 unsigned int nr_rpages; /* total page number in rpages */
1466 struct page **cpages; /* pages store compressed data in cluster */
1467 unsigned int nr_cpages; /* total page number in cpages */
1468 unsigned int valid_nr_cpages; /* valid page number in cpages */
1469 void *rbuf; /* virtual mapped address on rpages */
1470 struct compress_data *cbuf; /* virtual mapped address on cpages */
1471 size_t rlen; /* valid data length in rbuf */
1472 size_t clen; /* valid data length in cbuf */
1473 void *private; /* payload buffer for specified compression algorithm */
1474 void *private2; /* extra payload buffer */
1475 };
1476
1477 /* compress context for write IO path */
1478 struct compress_io_ctx {
1479 u32 magic; /* magic number to indicate page is compressed */
1480 struct inode *inode; /* inode the context belong to */
1481 struct page **rpages; /* pages store raw data in cluster */
1482 unsigned int nr_rpages; /* total page number in rpages */
1483 atomic_t pending_pages; /* in-flight compressed page count */
1484 };
1485
1486 /* Context for decompressing one cluster on the read IO path */
1487 struct decompress_io_ctx {
1488 u32 magic; /* magic number to indicate page is compressed */
1489 struct inode *inode; /* inode the context belong to */
1490 pgoff_t cluster_idx; /* cluster index number */
1491 unsigned int cluster_size; /* page count in cluster */
1492 unsigned int log_cluster_size; /* log of cluster size */
1493 struct page **rpages; /* pages store raw data in cluster */
1494 unsigned int nr_rpages; /* total page number in rpages */
1495 struct page **cpages; /* pages store compressed data in cluster */
1496 unsigned int nr_cpages; /* total page number in cpages */
1497 struct page **tpages; /* temp pages to pad holes in cluster */
1498 void *rbuf; /* virtual mapped address on rpages */
1499 struct compress_data *cbuf; /* virtual mapped address on cpages */
1500 size_t rlen; /* valid data length in rbuf */
1501 size_t clen; /* valid data length in cbuf */
1502
1503 /*
1504 * The number of compressed pages remaining to be read in this cluster.
1505 * This is initially nr_cpages. It is decremented by 1 each time a page
1506 * has been read (or failed to be read). When it reaches 0, the cluster
1507 * is decompressed (or an error is reported).
1508 *
1509 * If an error occurs before all the pages have been submitted for I/O,
1510 * then this will never reach 0. In this case the I/O submitter is
1511 * responsible for calling f2fs_decompress_end_io() instead.
1512 */
1513 atomic_t remaining_pages;
1514
1515 /*
1516 * Number of references to this decompress_io_ctx.
1517 *
1518 * One reference is held for I/O completion. This reference is dropped
1519 * after the pagecache pages are updated and unlocked -- either after
1520 * decompression (and verity if enabled), or after an error.
1521 *
1522 * In addition, each compressed page holds a reference while it is in a
1523 * bio. These references are necessary prevent compressed pages from
1524 * being freed while they are still in a bio.
1525 */
1526 refcount_t refcnt;
1527
1528 bool failed; /* IO error occurred before decompression? */
1529 bool need_verity; /* need fs-verity verification after decompression? */
1530 void *private; /* payload buffer for specified decompression algorithm */
1531 void *private2; /* extra payload buffer */
1532 struct work_struct verity_work; /* work to verify the decompressed pages */
1533 struct work_struct free_work; /* work for late free this structure itself */
1534 };
1535
1536 #define NULL_CLUSTER ((unsigned int)(~0))
1537 #define MIN_COMPRESS_LOG_SIZE 2
1538 #define MAX_COMPRESS_LOG_SIZE 8
1539 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1540
1541 struct f2fs_sb_info {
1542 struct super_block *sb; /* pointer to VFS super block */
1543 struct proc_dir_entry *s_proc; /* proc entry */
1544 struct f2fs_super_block *raw_super; /* raw super block pointer */
1545 struct f2fs_rwsem sb_lock; /* lock for raw super block */
1546 int valid_super_block; /* valid super block no */
1547 unsigned long s_flag; /* flags for sbi */
1548 struct mutex writepages; /* mutex for writepages() */
1549
1550 #ifdef CONFIG_BLK_DEV_ZONED
1551 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1552 #endif
1553
1554 /* for node-related operations */
1555 struct f2fs_nm_info *nm_info; /* node manager */
1556 struct inode *node_inode; /* cache node blocks */
1557
1558 /* for segment-related operations */
1559 struct f2fs_sm_info *sm_info; /* segment manager */
1560
1561 /* for bio operations */
1562 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1563 /* keep migration IO order for LFS mode */
1564 struct f2fs_rwsem io_order_lock;
1565 mempool_t *write_io_dummy; /* Dummy pages */
1566 pgoff_t page_eio_ofs[NR_PAGE_TYPE]; /* EIO page offset */
1567 int page_eio_cnt[NR_PAGE_TYPE]; /* EIO count */
1568
1569 /* for checkpoint */
1570 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1571 int cur_cp_pack; /* remain current cp pack */
1572 spinlock_t cp_lock; /* for flag in ckpt */
1573 struct inode *meta_inode; /* cache meta blocks */
1574 struct f2fs_rwsem cp_global_sem; /* checkpoint procedure lock */
1575 struct f2fs_rwsem cp_rwsem; /* blocking FS operations */
1576 struct f2fs_rwsem node_write; /* locking node writes */
1577 struct f2fs_rwsem node_change; /* locking node change */
1578 wait_queue_head_t cp_wait;
1579 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1580 long interval_time[MAX_TIME]; /* to store thresholds */
1581 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1582
1583 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1584
1585 spinlock_t fsync_node_lock; /* for node entry lock */
1586 struct list_head fsync_node_list; /* node list head */
1587 unsigned int fsync_seg_id; /* sequence id */
1588 unsigned int fsync_node_num; /* number of node entries */
1589
1590 /* for orphan inode, use 0'th array */
1591 unsigned int max_orphans; /* max orphan inodes */
1592
1593 /* for inode management */
1594 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1595 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1596 struct mutex flush_lock; /* for flush exclusion */
1597
1598 /* for extent tree cache */
1599 struct extent_tree_info extent_tree[NR_EXTENT_CACHES];
1600 atomic64_t allocated_data_blocks; /* for block age extent_cache */
1601
1602 /* The threshold used for hot and warm data seperation*/
1603 unsigned int hot_data_age_threshold;
1604 unsigned int warm_data_age_threshold;
1605 unsigned int last_age_weight;
1606
1607 /* basic filesystem units */
1608 unsigned int log_sectors_per_block; /* log2 sectors per block */
1609 unsigned int log_blocksize; /* log2 block size */
1610 unsigned int blocksize; /* block size */
1611 unsigned int root_ino_num; /* root inode number*/
1612 unsigned int node_ino_num; /* node inode number*/
1613 unsigned int meta_ino_num; /* meta inode number*/
1614 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1615 unsigned int blocks_per_seg; /* blocks per segment */
1616 unsigned int unusable_blocks_per_sec; /* unusable blocks per section */
1617 unsigned int segs_per_sec; /* segments per section */
1618 unsigned int secs_per_zone; /* sections per zone */
1619 unsigned int total_sections; /* total section count */
1620 unsigned int total_node_count; /* total node block count */
1621 unsigned int total_valid_node_count; /* valid node block count */
1622 int dir_level; /* directory level */
1623 bool readdir_ra; /* readahead inode in readdir */
1624 u64 max_io_bytes; /* max io bytes to merge IOs */
1625
1626 block_t user_block_count; /* # of user blocks */
1627 block_t total_valid_block_count; /* # of valid blocks */
1628 block_t discard_blks; /* discard command candidats */
1629 block_t last_valid_block_count; /* for recovery */
1630 block_t reserved_blocks; /* configurable reserved blocks */
1631 block_t current_reserved_blocks; /* current reserved blocks */
1632
1633 /* Additional tracking for no checkpoint mode */
1634 block_t unusable_block_count; /* # of blocks saved by last cp */
1635
1636 unsigned int nquota_files; /* # of quota sysfile */
1637 struct f2fs_rwsem quota_sem; /* blocking cp for flags */
1638
1639 /* # of pages, see count_type */
1640 atomic_t nr_pages[NR_COUNT_TYPE];
1641 /* # of allocated blocks */
1642 struct percpu_counter alloc_valid_block_count;
1643 /* # of node block writes as roll forward recovery */
1644 struct percpu_counter rf_node_block_count;
1645
1646 /* writeback control */
1647 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1648
1649 /* valid inode count */
1650 struct percpu_counter total_valid_inode_count;
1651
1652 struct f2fs_mount_info mount_opt; /* mount options */
1653
1654 /* for cleaning operations */
1655 struct f2fs_rwsem gc_lock; /*
1656 * semaphore for GC, avoid
1657 * race between GC and GC or CP
1658 */
1659 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1660 struct atgc_management am; /* atgc management */
1661 unsigned int cur_victim_sec; /* current victim section num */
1662 unsigned int gc_mode; /* current GC state */
1663 unsigned int next_victim_seg[2]; /* next segment in victim section */
1664 spinlock_t gc_remaining_trials_lock;
1665 /* remaining trial count for GC_URGENT_* and GC_IDLE_* */
1666 unsigned int gc_remaining_trials;
1667
1668 /* for skip statistic */
1669 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1670
1671 /* threshold for gc trials on pinned files */
1672 u64 gc_pin_file_threshold;
1673 struct f2fs_rwsem pin_sem;
1674
1675 /* maximum # of trials to find a victim segment for SSR and GC */
1676 unsigned int max_victim_search;
1677 /* migration granularity of garbage collection, unit: segment */
1678 unsigned int migration_granularity;
1679
1680 /*
1681 * for stat information.
1682 * one is for the LFS mode, and the other is for the SSR mode.
1683 */
1684 #ifdef CONFIG_F2FS_STAT_FS
1685 struct f2fs_stat_info *stat_info; /* FS status information */
1686 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1687 unsigned int segment_count[2]; /* # of allocated segments */
1688 unsigned int block_count[2]; /* # of allocated blocks */
1689 atomic_t inplace_count; /* # of inplace update */
1690 /* # of lookup extent cache */
1691 atomic64_t total_hit_ext[NR_EXTENT_CACHES];
1692 /* # of hit rbtree extent node */
1693 atomic64_t read_hit_rbtree[NR_EXTENT_CACHES];
1694 /* # of hit cached extent node */
1695 atomic64_t read_hit_cached[NR_EXTENT_CACHES];
1696 /* # of hit largest extent node in read extent cache */
1697 atomic64_t read_hit_largest;
1698 atomic_t inline_xattr; /* # of inline_xattr inodes */
1699 atomic_t inline_inode; /* # of inline_data inodes */
1700 atomic_t inline_dir; /* # of inline_dentry inodes */
1701 atomic_t compr_inode; /* # of compressed inodes */
1702 atomic64_t compr_blocks; /* # of compressed blocks */
1703 atomic_t swapfile_inode; /* # of swapfile inodes */
1704 atomic_t atomic_files; /* # of opened atomic file */
1705 atomic_t max_aw_cnt; /* max # of atomic writes */
1706 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1707 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1708 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1709 atomic_t cp_call_count[MAX_CALL_TYPE]; /* # of cp call */
1710 #endif
1711 spinlock_t stat_lock; /* lock for stat operations */
1712
1713 /* to attach REQ_META|REQ_FUA flags */
1714 unsigned int data_io_flag;
1715 unsigned int node_io_flag;
1716
1717 /* For sysfs support */
1718 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1719 struct completion s_kobj_unregister;
1720
1721 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1722 struct completion s_stat_kobj_unregister;
1723
1724 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1725 struct completion s_feature_list_kobj_unregister;
1726
1727 /* For shrinker support */
1728 struct list_head s_list;
1729 struct mutex umount_mutex;
1730 unsigned int shrinker_run_no;
1731
1732 /* For multi devices */
1733 int s_ndevs; /* number of devices */
1734 struct f2fs_dev_info *devs; /* for device list */
1735 unsigned int dirty_device; /* for checkpoint data flush */
1736 spinlock_t dev_lock; /* protect dirty_device */
1737 bool aligned_blksize; /* all devices has the same logical blksize */
1738
1739 /* For write statistics */
1740 u64 sectors_written_start;
1741 u64 kbytes_written;
1742
1743 /* Reference to checksum algorithm driver via cryptoapi */
1744 struct crypto_shash *s_chksum_driver;
1745
1746 /* Precomputed FS UUID checksum for seeding other checksums */
1747 __u32 s_chksum_seed;
1748
1749 struct workqueue_struct *post_read_wq; /* post read workqueue */
1750
1751 /*
1752 * If we are in irq context, let's update error information into
1753 * on-disk superblock in the work.
1754 */
1755 struct work_struct s_error_work;
1756 unsigned char errors[MAX_F2FS_ERRORS]; /* error flags */
1757 unsigned char stop_reason[MAX_STOP_REASON]; /* stop reason */
1758 spinlock_t error_lock; /* protect errors/stop_reason array */
1759 bool error_dirty; /* errors of sb is dirty */
1760
1761 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1762 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1763
1764 /* For reclaimed segs statistics per each GC mode */
1765 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1766 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1767
1768 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1769
1770 int max_fragment_chunk; /* max chunk size for block fragmentation mode */
1771 int max_fragment_hole; /* max hole size for block fragmentation mode */
1772
1773 /* For atomic write statistics */
1774 atomic64_t current_atomic_write;
1775 s64 peak_atomic_write;
1776 u64 committed_atomic_block;
1777 u64 revoked_atomic_block;
1778
1779 #ifdef CONFIG_F2FS_FS_COMPRESSION
1780 struct kmem_cache *page_array_slab; /* page array entry */
1781 unsigned int page_array_slab_size; /* default page array slab size */
1782
1783 /* For runtime compression statistics */
1784 u64 compr_written_block;
1785 u64 compr_saved_block;
1786 u32 compr_new_inode;
1787
1788 /* For compressed block cache */
1789 struct inode *compress_inode; /* cache compressed blocks */
1790 unsigned int compress_percent; /* cache page percentage */
1791 unsigned int compress_watermark; /* cache page watermark */
1792 atomic_t compress_page_hit; /* cache hit count */
1793 #endif
1794
1795 #ifdef CONFIG_F2FS_IOSTAT
1796 /* For app/fs IO statistics */
1797 spinlock_t iostat_lock;
1798 unsigned long long iostat_count[NR_IO_TYPE];
1799 unsigned long long iostat_bytes[NR_IO_TYPE];
1800 unsigned long long prev_iostat_bytes[NR_IO_TYPE];
1801 bool iostat_enable;
1802 unsigned long iostat_next_period;
1803 unsigned int iostat_period_ms;
1804
1805 /* For io latency related statistics info in one iostat period */
1806 spinlock_t iostat_lat_lock;
1807 struct iostat_lat_info *iostat_io_lat;
1808 #endif
1809 };
1810
1811 #ifdef CONFIG_F2FS_FAULT_INJECTION
1812 #define time_to_inject(sbi, type) __time_to_inject(sbi, type, __func__, \
1813 __builtin_return_address(0))
__time_to_inject(struct f2fs_sb_info * sbi,int type,const char * func,const char * parent_func)1814 static inline bool __time_to_inject(struct f2fs_sb_info *sbi, int type,
1815 const char *func, const char *parent_func)
1816 {
1817 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1818
1819 if (!ffi->inject_rate)
1820 return false;
1821
1822 if (!IS_FAULT_SET(ffi, type))
1823 return false;
1824
1825 atomic_inc(&ffi->inject_ops);
1826 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1827 atomic_set(&ffi->inject_ops, 0);
1828 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n",
1829 KERN_INFO, sbi->sb->s_id, f2fs_fault_name[type],
1830 func, parent_func);
1831 return true;
1832 }
1833 return false;
1834 }
1835 #else
time_to_inject(struct f2fs_sb_info * sbi,int type)1836 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1837 {
1838 return false;
1839 }
1840 #endif
1841
1842 /*
1843 * Test if the mounted volume is a multi-device volume.
1844 * - For a single regular disk volume, sbi->s_ndevs is 0.
1845 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1846 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1847 */
f2fs_is_multi_device(struct f2fs_sb_info * sbi)1848 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1849 {
1850 return sbi->s_ndevs > 1;
1851 }
1852
f2fs_update_time(struct f2fs_sb_info * sbi,int type)1853 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1854 {
1855 unsigned long now = jiffies;
1856
1857 sbi->last_time[type] = now;
1858
1859 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1860 if (type == REQ_TIME) {
1861 sbi->last_time[DISCARD_TIME] = now;
1862 sbi->last_time[GC_TIME] = now;
1863 }
1864 }
1865
f2fs_time_over(struct f2fs_sb_info * sbi,int type)1866 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1867 {
1868 unsigned long interval = sbi->interval_time[type] * HZ;
1869
1870 return time_after(jiffies, sbi->last_time[type] + interval);
1871 }
1872
f2fs_time_to_wait(struct f2fs_sb_info * sbi,int type)1873 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1874 int type)
1875 {
1876 unsigned long interval = sbi->interval_time[type] * HZ;
1877 unsigned int wait_ms = 0;
1878 long delta;
1879
1880 delta = (sbi->last_time[type] + interval) - jiffies;
1881 if (delta > 0)
1882 wait_ms = jiffies_to_msecs(delta);
1883
1884 return wait_ms;
1885 }
1886
1887 /*
1888 * Inline functions
1889 */
__f2fs_crc32(struct f2fs_sb_info * sbi,u32 crc,const void * address,unsigned int length)1890 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1891 const void *address, unsigned int length)
1892 {
1893 struct {
1894 struct shash_desc shash;
1895 char ctx[4];
1896 } desc;
1897 int err;
1898
1899 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1900
1901 desc.shash.tfm = sbi->s_chksum_driver;
1902 *(u32 *)desc.ctx = crc;
1903
1904 err = crypto_shash_update(&desc.shash, address, length);
1905 BUG_ON(err);
1906
1907 return *(u32 *)desc.ctx;
1908 }
1909
f2fs_crc32(struct f2fs_sb_info * sbi,const void * address,unsigned int length)1910 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1911 unsigned int length)
1912 {
1913 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1914 }
1915
f2fs_crc_valid(struct f2fs_sb_info * sbi,__u32 blk_crc,void * buf,size_t buf_size)1916 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1917 void *buf, size_t buf_size)
1918 {
1919 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1920 }
1921
f2fs_chksum(struct f2fs_sb_info * sbi,u32 crc,const void * address,unsigned int length)1922 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1923 const void *address, unsigned int length)
1924 {
1925 return __f2fs_crc32(sbi, crc, address, length);
1926 }
1927
F2FS_I(struct inode * inode)1928 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1929 {
1930 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1931 }
1932
F2FS_SB(struct super_block * sb)1933 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1934 {
1935 return sb->s_fs_info;
1936 }
1937
F2FS_I_SB(struct inode * inode)1938 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1939 {
1940 return F2FS_SB(inode->i_sb);
1941 }
1942
F2FS_M_SB(struct address_space * mapping)1943 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1944 {
1945 return F2FS_I_SB(mapping->host);
1946 }
1947
F2FS_P_SB(struct page * page)1948 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1949 {
1950 return F2FS_M_SB(page_file_mapping(page));
1951 }
1952
F2FS_RAW_SUPER(struct f2fs_sb_info * sbi)1953 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1954 {
1955 return (struct f2fs_super_block *)(sbi->raw_super);
1956 }
1957
F2FS_CKPT(struct f2fs_sb_info * sbi)1958 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1959 {
1960 return (struct f2fs_checkpoint *)(sbi->ckpt);
1961 }
1962
F2FS_NODE(struct page * page)1963 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1964 {
1965 return (struct f2fs_node *)page_address(page);
1966 }
1967
F2FS_INODE(struct page * page)1968 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1969 {
1970 return &((struct f2fs_node *)page_address(page))->i;
1971 }
1972
NM_I(struct f2fs_sb_info * sbi)1973 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1974 {
1975 return (struct f2fs_nm_info *)(sbi->nm_info);
1976 }
1977
SM_I(struct f2fs_sb_info * sbi)1978 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1979 {
1980 return (struct f2fs_sm_info *)(sbi->sm_info);
1981 }
1982
SIT_I(struct f2fs_sb_info * sbi)1983 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1984 {
1985 return (struct sit_info *)(SM_I(sbi)->sit_info);
1986 }
1987
FREE_I(struct f2fs_sb_info * sbi)1988 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1989 {
1990 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1991 }
1992
DIRTY_I(struct f2fs_sb_info * sbi)1993 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1994 {
1995 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1996 }
1997
META_MAPPING(struct f2fs_sb_info * sbi)1998 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1999 {
2000 return sbi->meta_inode->i_mapping;
2001 }
2002
NODE_MAPPING(struct f2fs_sb_info * sbi)2003 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
2004 {
2005 return sbi->node_inode->i_mapping;
2006 }
2007
is_sbi_flag_set(struct f2fs_sb_info * sbi,unsigned int type)2008 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2009 {
2010 return test_bit(type, &sbi->s_flag);
2011 }
2012
set_sbi_flag(struct f2fs_sb_info * sbi,unsigned int type)2013 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2014 {
2015 set_bit(type, &sbi->s_flag);
2016 }
2017
clear_sbi_flag(struct f2fs_sb_info * sbi,unsigned int type)2018 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2019 {
2020 clear_bit(type, &sbi->s_flag);
2021 }
2022
cur_cp_version(struct f2fs_checkpoint * cp)2023 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2024 {
2025 return le64_to_cpu(cp->checkpoint_ver);
2026 }
2027
f2fs_qf_ino(struct super_block * sb,int type)2028 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2029 {
2030 if (type < F2FS_MAX_QUOTAS)
2031 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2032 return 0;
2033 }
2034
cur_cp_crc(struct f2fs_checkpoint * cp)2035 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2036 {
2037 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2038 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2039 }
2040
__is_set_ckpt_flags(struct f2fs_checkpoint * cp,unsigned int f)2041 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2042 {
2043 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2044
2045 return ckpt_flags & f;
2046 }
2047
is_set_ckpt_flags(struct f2fs_sb_info * sbi,unsigned int f)2048 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2049 {
2050 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2051 }
2052
__set_ckpt_flags(struct f2fs_checkpoint * cp,unsigned int f)2053 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2054 {
2055 unsigned int ckpt_flags;
2056
2057 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2058 ckpt_flags |= f;
2059 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2060 }
2061
set_ckpt_flags(struct f2fs_sb_info * sbi,unsigned int f)2062 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2063 {
2064 unsigned long flags;
2065
2066 spin_lock_irqsave(&sbi->cp_lock, flags);
2067 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2068 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2069 }
2070
__clear_ckpt_flags(struct f2fs_checkpoint * cp,unsigned int f)2071 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2072 {
2073 unsigned int ckpt_flags;
2074
2075 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2076 ckpt_flags &= (~f);
2077 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2078 }
2079
clear_ckpt_flags(struct f2fs_sb_info * sbi,unsigned int f)2080 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2081 {
2082 unsigned long flags;
2083
2084 spin_lock_irqsave(&sbi->cp_lock, flags);
2085 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2086 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2087 }
2088
2089 #define init_f2fs_rwsem(sem) \
2090 do { \
2091 static struct lock_class_key __key; \
2092 \
2093 __init_f2fs_rwsem((sem), #sem, &__key); \
2094 } while (0)
2095
__init_f2fs_rwsem(struct f2fs_rwsem * sem,const char * sem_name,struct lock_class_key * key)2096 static inline void __init_f2fs_rwsem(struct f2fs_rwsem *sem,
2097 const char *sem_name, struct lock_class_key *key)
2098 {
2099 __init_rwsem(&sem->internal_rwsem, sem_name, key);
2100 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2101 init_waitqueue_head(&sem->read_waiters);
2102 #endif
2103 }
2104
f2fs_rwsem_is_locked(struct f2fs_rwsem * sem)2105 static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
2106 {
2107 return rwsem_is_locked(&sem->internal_rwsem);
2108 }
2109
f2fs_rwsem_is_contended(struct f2fs_rwsem * sem)2110 static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
2111 {
2112 return rwsem_is_contended(&sem->internal_rwsem);
2113 }
2114
f2fs_down_read(struct f2fs_rwsem * sem)2115 static inline void f2fs_down_read(struct f2fs_rwsem *sem)
2116 {
2117 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2118 wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
2119 #else
2120 down_read(&sem->internal_rwsem);
2121 #endif
2122 }
2123
f2fs_down_read_trylock(struct f2fs_rwsem * sem)2124 static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
2125 {
2126 return down_read_trylock(&sem->internal_rwsem);
2127 }
2128
f2fs_up_read(struct f2fs_rwsem * sem)2129 static inline void f2fs_up_read(struct f2fs_rwsem *sem)
2130 {
2131 up_read(&sem->internal_rwsem);
2132 }
2133
f2fs_down_write(struct f2fs_rwsem * sem)2134 static inline void f2fs_down_write(struct f2fs_rwsem *sem)
2135 {
2136 down_write(&sem->internal_rwsem);
2137 }
2138
2139 #ifdef CONFIG_DEBUG_LOCK_ALLOC
f2fs_down_read_nested(struct f2fs_rwsem * sem,int subclass)2140 static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
2141 {
2142 down_read_nested(&sem->internal_rwsem, subclass);
2143 }
2144
f2fs_down_write_nested(struct f2fs_rwsem * sem,int subclass)2145 static inline void f2fs_down_write_nested(struct f2fs_rwsem *sem, int subclass)
2146 {
2147 down_write_nested(&sem->internal_rwsem, subclass);
2148 }
2149 #else
2150 #define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
2151 #define f2fs_down_write_nested(sem, subclass) f2fs_down_write(sem)
2152 #endif
2153
f2fs_down_write_trylock(struct f2fs_rwsem * sem)2154 static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
2155 {
2156 return down_write_trylock(&sem->internal_rwsem);
2157 }
2158
f2fs_up_write(struct f2fs_rwsem * sem)2159 static inline void f2fs_up_write(struct f2fs_rwsem *sem)
2160 {
2161 up_write(&sem->internal_rwsem);
2162 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2163 wake_up_all(&sem->read_waiters);
2164 #endif
2165 }
2166
f2fs_lock_op(struct f2fs_sb_info * sbi)2167 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2168 {
2169 f2fs_down_read(&sbi->cp_rwsem);
2170 }
2171
f2fs_trylock_op(struct f2fs_sb_info * sbi)2172 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2173 {
2174 if (time_to_inject(sbi, FAULT_LOCK_OP))
2175 return 0;
2176 return f2fs_down_read_trylock(&sbi->cp_rwsem);
2177 }
2178
f2fs_unlock_op(struct f2fs_sb_info * sbi)2179 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2180 {
2181 f2fs_up_read(&sbi->cp_rwsem);
2182 }
2183
f2fs_lock_all(struct f2fs_sb_info * sbi)2184 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2185 {
2186 f2fs_down_write(&sbi->cp_rwsem);
2187 }
2188
f2fs_unlock_all(struct f2fs_sb_info * sbi)2189 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2190 {
2191 f2fs_up_write(&sbi->cp_rwsem);
2192 }
2193
__get_cp_reason(struct f2fs_sb_info * sbi)2194 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2195 {
2196 int reason = CP_SYNC;
2197
2198 if (test_opt(sbi, FASTBOOT))
2199 reason = CP_FASTBOOT;
2200 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2201 reason = CP_UMOUNT;
2202 return reason;
2203 }
2204
__remain_node_summaries(int reason)2205 static inline bool __remain_node_summaries(int reason)
2206 {
2207 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2208 }
2209
__exist_node_summaries(struct f2fs_sb_info * sbi)2210 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2211 {
2212 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2213 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2214 }
2215
2216 /*
2217 * Check whether the inode has blocks or not
2218 */
F2FS_HAS_BLOCKS(struct inode * inode)2219 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2220 {
2221 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2222
2223 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2224 }
2225
f2fs_has_xattr_block(unsigned int ofs)2226 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2227 {
2228 return ofs == XATTR_NODE_OFFSET;
2229 }
2230
__allow_reserved_blocks(struct f2fs_sb_info * sbi,struct inode * inode,bool cap)2231 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2232 struct inode *inode, bool cap)
2233 {
2234 if (!inode)
2235 return true;
2236 if (!test_opt(sbi, RESERVE_ROOT))
2237 return false;
2238 if (IS_NOQUOTA(inode))
2239 return true;
2240 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2241 return true;
2242 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2243 in_group_p(F2FS_OPTION(sbi).s_resgid))
2244 return true;
2245 if (cap && capable(CAP_SYS_RESOURCE))
2246 return true;
2247 return false;
2248 }
2249
2250 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)2251 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2252 struct inode *inode, blkcnt_t *count, bool partial)
2253 {
2254 blkcnt_t diff = 0, release = 0;
2255 block_t avail_user_block_count;
2256 int ret;
2257
2258 ret = dquot_reserve_block(inode, *count);
2259 if (ret)
2260 return ret;
2261
2262 if (time_to_inject(sbi, FAULT_BLOCK)) {
2263 release = *count;
2264 goto release_quota;
2265 }
2266
2267 /*
2268 * let's increase this in prior to actual block count change in order
2269 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2270 */
2271 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2272
2273 spin_lock(&sbi->stat_lock);
2274 sbi->total_valid_block_count += (block_t)(*count);
2275 avail_user_block_count = sbi->user_block_count -
2276 sbi->current_reserved_blocks;
2277
2278 if (!__allow_reserved_blocks(sbi, inode, true))
2279 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2280
2281 if (F2FS_IO_ALIGNED(sbi))
2282 avail_user_block_count -= sbi->blocks_per_seg *
2283 SM_I(sbi)->additional_reserved_segments;
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 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
2292 if (!partial) {
2293 spin_unlock(&sbi->stat_lock);
2294 goto enospc;
2295 }
2296
2297 diff = sbi->total_valid_block_count - avail_user_block_count;
2298 if (diff > *count)
2299 diff = *count;
2300 *count -= diff;
2301 release = diff;
2302 sbi->total_valid_block_count -= diff;
2303 if (!*count) {
2304 spin_unlock(&sbi->stat_lock);
2305 goto enospc;
2306 }
2307 }
2308 spin_unlock(&sbi->stat_lock);
2309
2310 if (unlikely(release)) {
2311 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2312 dquot_release_reservation_block(inode, release);
2313 }
2314 f2fs_i_blocks_write(inode, *count, true, true);
2315 return 0;
2316
2317 enospc:
2318 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2319 release_quota:
2320 dquot_release_reservation_block(inode, release);
2321 return -ENOSPC;
2322 }
2323
2324 __printf(2, 3)
2325 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2326
2327 #define f2fs_err(sbi, fmt, ...) \
2328 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2329 #define f2fs_warn(sbi, fmt, ...) \
2330 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2331 #define f2fs_notice(sbi, fmt, ...) \
2332 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2333 #define f2fs_info(sbi, fmt, ...) \
2334 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2335 #define f2fs_debug(sbi, fmt, ...) \
2336 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2337
2338 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
2339 static inline bool page_private_##name(struct page *page) \
2340 { \
2341 return PagePrivate(page) && \
2342 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
2343 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
2344 }
2345
2346 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
2347 static inline void set_page_private_##name(struct page *page) \
2348 { \
2349 if (!PagePrivate(page)) \
2350 attach_page_private(page, (void *)0); \
2351 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
2352 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
2353 }
2354
2355 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
2356 static inline void clear_page_private_##name(struct page *page) \
2357 { \
2358 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
2359 if (page_private(page) == BIT(PAGE_PRIVATE_NOT_POINTER)) \
2360 detach_page_private(page); \
2361 }
2362
2363 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
2364 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
2365 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
2366 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
2367
2368 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
2369 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
2370 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
2371 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
2372
2373 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
2374 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
2375 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
2376 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
2377
get_page_private_data(struct page * page)2378 static inline unsigned long get_page_private_data(struct page *page)
2379 {
2380 unsigned long data = page_private(page);
2381
2382 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
2383 return 0;
2384 return data >> PAGE_PRIVATE_MAX;
2385 }
2386
set_page_private_data(struct page * page,unsigned long data)2387 static inline void set_page_private_data(struct page *page, unsigned long data)
2388 {
2389 if (!PagePrivate(page))
2390 attach_page_private(page, (void *)0);
2391 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
2392 page_private(page) |= data << PAGE_PRIVATE_MAX;
2393 }
2394
clear_page_private_data(struct page * page)2395 static inline void clear_page_private_data(struct page *page)
2396 {
2397 page_private(page) &= GENMASK(PAGE_PRIVATE_MAX - 1, 0);
2398 if (page_private(page) == BIT(PAGE_PRIVATE_NOT_POINTER))
2399 detach_page_private(page);
2400 }
2401
clear_page_private_all(struct page * page)2402 static inline void clear_page_private_all(struct page *page)
2403 {
2404 clear_page_private_data(page);
2405 clear_page_private_reference(page);
2406 clear_page_private_gcing(page);
2407 clear_page_private_inline(page);
2408
2409 f2fs_bug_on(F2FS_P_SB(page), page_private(page));
2410 }
2411
dec_valid_block_count(struct f2fs_sb_info * sbi,struct inode * inode,block_t count)2412 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2413 struct inode *inode,
2414 block_t count)
2415 {
2416 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2417
2418 spin_lock(&sbi->stat_lock);
2419 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2420 sbi->total_valid_block_count -= (block_t)count;
2421 if (sbi->reserved_blocks &&
2422 sbi->current_reserved_blocks < sbi->reserved_blocks)
2423 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2424 sbi->current_reserved_blocks + count);
2425 spin_unlock(&sbi->stat_lock);
2426 if (unlikely(inode->i_blocks < sectors)) {
2427 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2428 inode->i_ino,
2429 (unsigned long long)inode->i_blocks,
2430 (unsigned long long)sectors);
2431 set_sbi_flag(sbi, SBI_NEED_FSCK);
2432 return;
2433 }
2434 f2fs_i_blocks_write(inode, count, false, true);
2435 }
2436
inc_page_count(struct f2fs_sb_info * sbi,int count_type)2437 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2438 {
2439 atomic_inc(&sbi->nr_pages[count_type]);
2440
2441 if (count_type == F2FS_DIRTY_DENTS ||
2442 count_type == F2FS_DIRTY_NODES ||
2443 count_type == F2FS_DIRTY_META ||
2444 count_type == F2FS_DIRTY_QDATA ||
2445 count_type == F2FS_DIRTY_IMETA)
2446 set_sbi_flag(sbi, SBI_IS_DIRTY);
2447 }
2448
inode_inc_dirty_pages(struct inode * inode)2449 static inline void inode_inc_dirty_pages(struct inode *inode)
2450 {
2451 atomic_inc(&F2FS_I(inode)->dirty_pages);
2452 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2453 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2454 if (IS_NOQUOTA(inode))
2455 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2456 }
2457
dec_page_count(struct f2fs_sb_info * sbi,int count_type)2458 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2459 {
2460 atomic_dec(&sbi->nr_pages[count_type]);
2461 }
2462
inode_dec_dirty_pages(struct inode * inode)2463 static inline void inode_dec_dirty_pages(struct inode *inode)
2464 {
2465 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2466 !S_ISLNK(inode->i_mode))
2467 return;
2468
2469 atomic_dec(&F2FS_I(inode)->dirty_pages);
2470 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2471 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2472 if (IS_NOQUOTA(inode))
2473 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2474 }
2475
inc_atomic_write_cnt(struct inode * inode)2476 static inline void inc_atomic_write_cnt(struct inode *inode)
2477 {
2478 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2479 struct f2fs_inode_info *fi = F2FS_I(inode);
2480 u64 current_write;
2481
2482 fi->atomic_write_cnt++;
2483 atomic64_inc(&sbi->current_atomic_write);
2484 current_write = atomic64_read(&sbi->current_atomic_write);
2485 if (current_write > sbi->peak_atomic_write)
2486 sbi->peak_atomic_write = current_write;
2487 }
2488
release_atomic_write_cnt(struct inode * inode)2489 static inline void release_atomic_write_cnt(struct inode *inode)
2490 {
2491 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2492 struct f2fs_inode_info *fi = F2FS_I(inode);
2493
2494 atomic64_sub(fi->atomic_write_cnt, &sbi->current_atomic_write);
2495 fi->atomic_write_cnt = 0;
2496 }
2497
get_pages(struct f2fs_sb_info * sbi,int count_type)2498 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2499 {
2500 return atomic_read(&sbi->nr_pages[count_type]);
2501 }
2502
get_dirty_pages(struct inode * inode)2503 static inline int get_dirty_pages(struct inode *inode)
2504 {
2505 return atomic_read(&F2FS_I(inode)->dirty_pages);
2506 }
2507
get_blocktype_secs(struct f2fs_sb_info * sbi,int block_type)2508 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2509 {
2510 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2511 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2512 sbi->log_blocks_per_seg;
2513
2514 return segs / sbi->segs_per_sec;
2515 }
2516
valid_user_blocks(struct f2fs_sb_info * sbi)2517 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2518 {
2519 return sbi->total_valid_block_count;
2520 }
2521
discard_blocks(struct f2fs_sb_info * sbi)2522 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2523 {
2524 return sbi->discard_blks;
2525 }
2526
__bitmap_size(struct f2fs_sb_info * sbi,int flag)2527 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2528 {
2529 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2530
2531 /* return NAT or SIT bitmap */
2532 if (flag == NAT_BITMAP)
2533 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2534 else if (flag == SIT_BITMAP)
2535 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2536
2537 return 0;
2538 }
2539
__cp_payload(struct f2fs_sb_info * sbi)2540 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2541 {
2542 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2543 }
2544
__bitmap_ptr(struct f2fs_sb_info * sbi,int flag)2545 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2546 {
2547 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2548 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2549 int offset;
2550
2551 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2552 offset = (flag == SIT_BITMAP) ?
2553 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2554 /*
2555 * if large_nat_bitmap feature is enabled, leave checksum
2556 * protection for all nat/sit bitmaps.
2557 */
2558 return tmp_ptr + offset + sizeof(__le32);
2559 }
2560
2561 if (__cp_payload(sbi) > 0) {
2562 if (flag == NAT_BITMAP)
2563 return tmp_ptr;
2564 else
2565 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2566 } else {
2567 offset = (flag == NAT_BITMAP) ?
2568 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2569 return tmp_ptr + offset;
2570 }
2571 }
2572
__start_cp_addr(struct f2fs_sb_info * sbi)2573 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2574 {
2575 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2576
2577 if (sbi->cur_cp_pack == 2)
2578 start_addr += sbi->blocks_per_seg;
2579 return start_addr;
2580 }
2581
__start_cp_next_addr(struct f2fs_sb_info * sbi)2582 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2583 {
2584 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2585
2586 if (sbi->cur_cp_pack == 1)
2587 start_addr += sbi->blocks_per_seg;
2588 return start_addr;
2589 }
2590
__set_cp_next_pack(struct f2fs_sb_info * sbi)2591 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2592 {
2593 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2594 }
2595
__start_sum_addr(struct f2fs_sb_info * sbi)2596 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2597 {
2598 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2599 }
2600
2601 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)2602 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2603 struct inode *inode, bool is_inode)
2604 {
2605 block_t valid_block_count;
2606 unsigned int valid_node_count, user_block_count;
2607 int err;
2608
2609 if (is_inode) {
2610 if (inode) {
2611 err = dquot_alloc_inode(inode);
2612 if (err)
2613 return err;
2614 }
2615 } else {
2616 err = dquot_reserve_block(inode, 1);
2617 if (err)
2618 return err;
2619 }
2620
2621 if (time_to_inject(sbi, FAULT_BLOCK))
2622 goto enospc;
2623
2624 spin_lock(&sbi->stat_lock);
2625
2626 valid_block_count = sbi->total_valid_block_count +
2627 sbi->current_reserved_blocks + 1;
2628
2629 if (!__allow_reserved_blocks(sbi, inode, false))
2630 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2631
2632 if (F2FS_IO_ALIGNED(sbi))
2633 valid_block_count += sbi->blocks_per_seg *
2634 SM_I(sbi)->additional_reserved_segments;
2635
2636 user_block_count = sbi->user_block_count;
2637 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2638 user_block_count -= sbi->unusable_block_count;
2639
2640 if (unlikely(valid_block_count > user_block_count)) {
2641 spin_unlock(&sbi->stat_lock);
2642 goto enospc;
2643 }
2644
2645 valid_node_count = sbi->total_valid_node_count + 1;
2646 if (unlikely(valid_node_count > sbi->total_node_count)) {
2647 spin_unlock(&sbi->stat_lock);
2648 goto enospc;
2649 }
2650
2651 sbi->total_valid_node_count++;
2652 sbi->total_valid_block_count++;
2653 spin_unlock(&sbi->stat_lock);
2654
2655 if (inode) {
2656 if (is_inode)
2657 f2fs_mark_inode_dirty_sync(inode, true);
2658 else
2659 f2fs_i_blocks_write(inode, 1, true, true);
2660 }
2661
2662 percpu_counter_inc(&sbi->alloc_valid_block_count);
2663 return 0;
2664
2665 enospc:
2666 if (is_inode) {
2667 if (inode)
2668 dquot_free_inode(inode);
2669 } else {
2670 dquot_release_reservation_block(inode, 1);
2671 }
2672 return -ENOSPC;
2673 }
2674
dec_valid_node_count(struct f2fs_sb_info * sbi,struct inode * inode,bool is_inode)2675 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2676 struct inode *inode, bool is_inode)
2677 {
2678 spin_lock(&sbi->stat_lock);
2679
2680 if (unlikely(!sbi->total_valid_block_count ||
2681 !sbi->total_valid_node_count)) {
2682 f2fs_warn(sbi, "dec_valid_node_count: inconsistent block counts, total_valid_block:%u, total_valid_node:%u",
2683 sbi->total_valid_block_count,
2684 sbi->total_valid_node_count);
2685 set_sbi_flag(sbi, SBI_NEED_FSCK);
2686 } else {
2687 sbi->total_valid_block_count--;
2688 sbi->total_valid_node_count--;
2689 }
2690
2691 if (sbi->reserved_blocks &&
2692 sbi->current_reserved_blocks < sbi->reserved_blocks)
2693 sbi->current_reserved_blocks++;
2694
2695 spin_unlock(&sbi->stat_lock);
2696
2697 if (is_inode) {
2698 dquot_free_inode(inode);
2699 } else {
2700 if (unlikely(inode->i_blocks == 0)) {
2701 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2702 inode->i_ino,
2703 (unsigned long long)inode->i_blocks);
2704 set_sbi_flag(sbi, SBI_NEED_FSCK);
2705 return;
2706 }
2707 f2fs_i_blocks_write(inode, 1, false, true);
2708 }
2709 }
2710
valid_node_count(struct f2fs_sb_info * sbi)2711 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2712 {
2713 return sbi->total_valid_node_count;
2714 }
2715
inc_valid_inode_count(struct f2fs_sb_info * sbi)2716 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2717 {
2718 percpu_counter_inc(&sbi->total_valid_inode_count);
2719 }
2720
dec_valid_inode_count(struct f2fs_sb_info * sbi)2721 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2722 {
2723 percpu_counter_dec(&sbi->total_valid_inode_count);
2724 }
2725
valid_inode_count(struct f2fs_sb_info * sbi)2726 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2727 {
2728 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2729 }
2730
f2fs_grab_cache_page(struct address_space * mapping,pgoff_t index,bool for_write)2731 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2732 pgoff_t index, bool for_write)
2733 {
2734 struct page *page;
2735 unsigned int flags;
2736
2737 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2738 if (!for_write)
2739 page = find_get_page_flags(mapping, index,
2740 FGP_LOCK | FGP_ACCESSED);
2741 else
2742 page = find_lock_page(mapping, index);
2743 if (page)
2744 return page;
2745
2746 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC))
2747 return NULL;
2748 }
2749
2750 if (!for_write)
2751 return grab_cache_page(mapping, index);
2752
2753 flags = memalloc_nofs_save();
2754 page = grab_cache_page_write_begin(mapping, index);
2755 memalloc_nofs_restore(flags);
2756
2757 return page;
2758 }
2759
f2fs_pagecache_get_page(struct address_space * mapping,pgoff_t index,fgf_t fgp_flags,gfp_t gfp_mask)2760 static inline struct page *f2fs_pagecache_get_page(
2761 struct address_space *mapping, pgoff_t index,
2762 fgf_t fgp_flags, gfp_t gfp_mask)
2763 {
2764 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET))
2765 return NULL;
2766
2767 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2768 }
2769
f2fs_put_page(struct page * page,int unlock)2770 static inline void f2fs_put_page(struct page *page, int unlock)
2771 {
2772 if (!page)
2773 return;
2774
2775 if (unlock) {
2776 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2777 unlock_page(page);
2778 }
2779 put_page(page);
2780 }
2781
f2fs_put_dnode(struct dnode_of_data * dn)2782 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2783 {
2784 if (dn->node_page)
2785 f2fs_put_page(dn->node_page, 1);
2786 if (dn->inode_page && dn->node_page != dn->inode_page)
2787 f2fs_put_page(dn->inode_page, 0);
2788 dn->node_page = NULL;
2789 dn->inode_page = NULL;
2790 }
2791
f2fs_kmem_cache_create(const char * name,size_t size)2792 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2793 size_t size)
2794 {
2795 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2796 }
2797
f2fs_kmem_cache_alloc_nofail(struct kmem_cache * cachep,gfp_t flags)2798 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2799 gfp_t flags)
2800 {
2801 void *entry;
2802
2803 entry = kmem_cache_alloc(cachep, flags);
2804 if (!entry)
2805 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2806 return entry;
2807 }
2808
f2fs_kmem_cache_alloc(struct kmem_cache * cachep,gfp_t flags,bool nofail,struct f2fs_sb_info * sbi)2809 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2810 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2811 {
2812 if (nofail)
2813 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2814
2815 if (time_to_inject(sbi, FAULT_SLAB_ALLOC))
2816 return NULL;
2817
2818 return kmem_cache_alloc(cachep, flags);
2819 }
2820
is_inflight_io(struct f2fs_sb_info * sbi,int type)2821 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2822 {
2823 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2824 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2825 get_pages(sbi, F2FS_WB_CP_DATA) ||
2826 get_pages(sbi, F2FS_DIO_READ) ||
2827 get_pages(sbi, F2FS_DIO_WRITE))
2828 return true;
2829
2830 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2831 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2832 return true;
2833
2834 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2835 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2836 return true;
2837 return false;
2838 }
2839
is_idle(struct f2fs_sb_info * sbi,int type)2840 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2841 {
2842 if (sbi->gc_mode == GC_URGENT_HIGH)
2843 return true;
2844
2845 if (is_inflight_io(sbi, type))
2846 return false;
2847
2848 if (sbi->gc_mode == GC_URGENT_MID)
2849 return true;
2850
2851 if (sbi->gc_mode == GC_URGENT_LOW &&
2852 (type == DISCARD_TIME || type == GC_TIME))
2853 return true;
2854
2855 return f2fs_time_over(sbi, type);
2856 }
2857
f2fs_radix_tree_insert(struct radix_tree_root * root,unsigned long index,void * item)2858 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2859 unsigned long index, void *item)
2860 {
2861 while (radix_tree_insert(root, index, item))
2862 cond_resched();
2863 }
2864
2865 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2866
IS_INODE(struct page * page)2867 static inline bool IS_INODE(struct page *page)
2868 {
2869 struct f2fs_node *p = F2FS_NODE(page);
2870
2871 return RAW_IS_INODE(p);
2872 }
2873
offset_in_addr(struct f2fs_inode * i)2874 static inline int offset_in_addr(struct f2fs_inode *i)
2875 {
2876 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2877 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2878 }
2879
blkaddr_in_node(struct f2fs_node * node)2880 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2881 {
2882 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2883 }
2884
2885 static inline int f2fs_has_extra_attr(struct inode *inode);
data_blkaddr(struct inode * inode,struct page * node_page,unsigned int offset)2886 static inline block_t data_blkaddr(struct inode *inode,
2887 struct page *node_page, unsigned int offset)
2888 {
2889 struct f2fs_node *raw_node;
2890 __le32 *addr_array;
2891 int base = 0;
2892 bool is_inode = IS_INODE(node_page);
2893
2894 raw_node = F2FS_NODE(node_page);
2895
2896 if (is_inode) {
2897 if (!inode)
2898 /* from GC path only */
2899 base = offset_in_addr(&raw_node->i);
2900 else if (f2fs_has_extra_attr(inode))
2901 base = get_extra_isize(inode);
2902 }
2903
2904 addr_array = blkaddr_in_node(raw_node);
2905 return le32_to_cpu(addr_array[base + offset]);
2906 }
2907
f2fs_data_blkaddr(struct dnode_of_data * dn)2908 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2909 {
2910 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2911 }
2912
f2fs_test_bit(unsigned int nr,char * addr)2913 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2914 {
2915 int mask;
2916
2917 addr += (nr >> 3);
2918 mask = BIT(7 - (nr & 0x07));
2919 return mask & *addr;
2920 }
2921
f2fs_set_bit(unsigned int nr,char * addr)2922 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2923 {
2924 int mask;
2925
2926 addr += (nr >> 3);
2927 mask = BIT(7 - (nr & 0x07));
2928 *addr |= mask;
2929 }
2930
f2fs_clear_bit(unsigned int nr,char * addr)2931 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2932 {
2933 int mask;
2934
2935 addr += (nr >> 3);
2936 mask = BIT(7 - (nr & 0x07));
2937 *addr &= ~mask;
2938 }
2939
f2fs_test_and_set_bit(unsigned int nr,char * addr)2940 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2941 {
2942 int mask;
2943 int ret;
2944
2945 addr += (nr >> 3);
2946 mask = BIT(7 - (nr & 0x07));
2947 ret = mask & *addr;
2948 *addr |= mask;
2949 return ret;
2950 }
2951
f2fs_test_and_clear_bit(unsigned int nr,char * addr)2952 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2953 {
2954 int mask;
2955 int ret;
2956
2957 addr += (nr >> 3);
2958 mask = BIT(7 - (nr & 0x07));
2959 ret = mask & *addr;
2960 *addr &= ~mask;
2961 return ret;
2962 }
2963
f2fs_change_bit(unsigned int nr,char * addr)2964 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2965 {
2966 int mask;
2967
2968 addr += (nr >> 3);
2969 mask = BIT(7 - (nr & 0x07));
2970 *addr ^= mask;
2971 }
2972
2973 /*
2974 * On-disk inode flags (f2fs_inode::i_flags)
2975 */
2976 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2977 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2978 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2979 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2980 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2981 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2982 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2983 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2984 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2985 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2986 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2987
2988 #define F2FS_QUOTA_DEFAULT_FL (F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL)
2989
2990 /* Flags that should be inherited by new inodes from their parent. */
2991 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2992 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2993 F2FS_CASEFOLD_FL)
2994
2995 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2996 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2997 F2FS_CASEFOLD_FL))
2998
2999 /* Flags that are appropriate for non-directories/regular files. */
3000 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
3001
f2fs_mask_flags(umode_t mode,__u32 flags)3002 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
3003 {
3004 if (S_ISDIR(mode))
3005 return flags;
3006 else if (S_ISREG(mode))
3007 return flags & F2FS_REG_FLMASK;
3008 else
3009 return flags & F2FS_OTHER_FLMASK;
3010 }
3011
__mark_inode_dirty_flag(struct inode * inode,int flag,bool set)3012 static inline void __mark_inode_dirty_flag(struct inode *inode,
3013 int flag, bool set)
3014 {
3015 switch (flag) {
3016 case FI_INLINE_XATTR:
3017 case FI_INLINE_DATA:
3018 case FI_INLINE_DENTRY:
3019 case FI_NEW_INODE:
3020 if (set)
3021 return;
3022 fallthrough;
3023 case FI_DATA_EXIST:
3024 case FI_INLINE_DOTS:
3025 case FI_PIN_FILE:
3026 case FI_COMPRESS_RELEASED:
3027 case FI_ATOMIC_COMMITTED:
3028 f2fs_mark_inode_dirty_sync(inode, true);
3029 }
3030 }
3031
set_inode_flag(struct inode * inode,int flag)3032 static inline void set_inode_flag(struct inode *inode, int flag)
3033 {
3034 set_bit(flag, F2FS_I(inode)->flags);
3035 __mark_inode_dirty_flag(inode, flag, true);
3036 }
3037
is_inode_flag_set(struct inode * inode,int flag)3038 static inline int is_inode_flag_set(struct inode *inode, int flag)
3039 {
3040 return test_bit(flag, F2FS_I(inode)->flags);
3041 }
3042
clear_inode_flag(struct inode * inode,int flag)3043 static inline void clear_inode_flag(struct inode *inode, int flag)
3044 {
3045 clear_bit(flag, F2FS_I(inode)->flags);
3046 __mark_inode_dirty_flag(inode, flag, false);
3047 }
3048
f2fs_verity_in_progress(struct inode * inode)3049 static inline bool f2fs_verity_in_progress(struct inode *inode)
3050 {
3051 return IS_ENABLED(CONFIG_FS_VERITY) &&
3052 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
3053 }
3054
set_acl_inode(struct inode * inode,umode_t mode)3055 static inline void set_acl_inode(struct inode *inode, umode_t mode)
3056 {
3057 F2FS_I(inode)->i_acl_mode = mode;
3058 set_inode_flag(inode, FI_ACL_MODE);
3059 f2fs_mark_inode_dirty_sync(inode, false);
3060 }
3061
f2fs_i_links_write(struct inode * inode,bool inc)3062 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
3063 {
3064 if (inc)
3065 inc_nlink(inode);
3066 else
3067 drop_nlink(inode);
3068 f2fs_mark_inode_dirty_sync(inode, true);
3069 }
3070
f2fs_i_blocks_write(struct inode * inode,block_t diff,bool add,bool claim)3071 static inline void f2fs_i_blocks_write(struct inode *inode,
3072 block_t diff, bool add, bool claim)
3073 {
3074 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3075 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3076
3077 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
3078 if (add) {
3079 if (claim)
3080 dquot_claim_block(inode, diff);
3081 else
3082 dquot_alloc_block_nofail(inode, diff);
3083 } else {
3084 dquot_free_block(inode, diff);
3085 }
3086
3087 f2fs_mark_inode_dirty_sync(inode, true);
3088 if (clean || recover)
3089 set_inode_flag(inode, FI_AUTO_RECOVER);
3090 }
3091
3092 static inline bool f2fs_is_atomic_file(struct inode *inode);
3093
f2fs_i_size_write(struct inode * inode,loff_t i_size)3094 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
3095 {
3096 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3097 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3098
3099 if (i_size_read(inode) == i_size)
3100 return;
3101
3102 i_size_write(inode, i_size);
3103
3104 if (f2fs_is_atomic_file(inode))
3105 return;
3106
3107 f2fs_mark_inode_dirty_sync(inode, true);
3108 if (clean || recover)
3109 set_inode_flag(inode, FI_AUTO_RECOVER);
3110 }
3111
f2fs_i_depth_write(struct inode * inode,unsigned int depth)3112 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
3113 {
3114 F2FS_I(inode)->i_current_depth = depth;
3115 f2fs_mark_inode_dirty_sync(inode, true);
3116 }
3117
f2fs_i_gc_failures_write(struct inode * inode,unsigned int count)3118 static inline void f2fs_i_gc_failures_write(struct inode *inode,
3119 unsigned int count)
3120 {
3121 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
3122 f2fs_mark_inode_dirty_sync(inode, true);
3123 }
3124
f2fs_i_xnid_write(struct inode * inode,nid_t xnid)3125 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
3126 {
3127 F2FS_I(inode)->i_xattr_nid = xnid;
3128 f2fs_mark_inode_dirty_sync(inode, true);
3129 }
3130
f2fs_i_pino_write(struct inode * inode,nid_t pino)3131 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
3132 {
3133 F2FS_I(inode)->i_pino = pino;
3134 f2fs_mark_inode_dirty_sync(inode, true);
3135 }
3136
get_inline_info(struct inode * inode,struct f2fs_inode * ri)3137 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
3138 {
3139 struct f2fs_inode_info *fi = F2FS_I(inode);
3140
3141 if (ri->i_inline & F2FS_INLINE_XATTR)
3142 set_bit(FI_INLINE_XATTR, fi->flags);
3143 if (ri->i_inline & F2FS_INLINE_DATA)
3144 set_bit(FI_INLINE_DATA, fi->flags);
3145 if (ri->i_inline & F2FS_INLINE_DENTRY)
3146 set_bit(FI_INLINE_DENTRY, fi->flags);
3147 if (ri->i_inline & F2FS_DATA_EXIST)
3148 set_bit(FI_DATA_EXIST, fi->flags);
3149 if (ri->i_inline & F2FS_INLINE_DOTS)
3150 set_bit(FI_INLINE_DOTS, fi->flags);
3151 if (ri->i_inline & F2FS_EXTRA_ATTR)
3152 set_bit(FI_EXTRA_ATTR, fi->flags);
3153 if (ri->i_inline & F2FS_PIN_FILE)
3154 set_bit(FI_PIN_FILE, fi->flags);
3155 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
3156 set_bit(FI_COMPRESS_RELEASED, fi->flags);
3157 }
3158
set_raw_inline(struct inode * inode,struct f2fs_inode * ri)3159 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
3160 {
3161 ri->i_inline = 0;
3162
3163 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
3164 ri->i_inline |= F2FS_INLINE_XATTR;
3165 if (is_inode_flag_set(inode, FI_INLINE_DATA))
3166 ri->i_inline |= F2FS_INLINE_DATA;
3167 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
3168 ri->i_inline |= F2FS_INLINE_DENTRY;
3169 if (is_inode_flag_set(inode, FI_DATA_EXIST))
3170 ri->i_inline |= F2FS_DATA_EXIST;
3171 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
3172 ri->i_inline |= F2FS_INLINE_DOTS;
3173 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
3174 ri->i_inline |= F2FS_EXTRA_ATTR;
3175 if (is_inode_flag_set(inode, FI_PIN_FILE))
3176 ri->i_inline |= F2FS_PIN_FILE;
3177 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
3178 ri->i_inline |= F2FS_COMPRESS_RELEASED;
3179 }
3180
f2fs_has_extra_attr(struct inode * inode)3181 static inline int f2fs_has_extra_attr(struct inode *inode)
3182 {
3183 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
3184 }
3185
f2fs_has_inline_xattr(struct inode * inode)3186 static inline int f2fs_has_inline_xattr(struct inode *inode)
3187 {
3188 return is_inode_flag_set(inode, FI_INLINE_XATTR);
3189 }
3190
f2fs_compressed_file(struct inode * inode)3191 static inline int f2fs_compressed_file(struct inode *inode)
3192 {
3193 return S_ISREG(inode->i_mode) &&
3194 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3195 }
3196
f2fs_need_compress_data(struct inode * inode)3197 static inline bool f2fs_need_compress_data(struct inode *inode)
3198 {
3199 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3200
3201 if (!f2fs_compressed_file(inode))
3202 return false;
3203
3204 if (compress_mode == COMPR_MODE_FS)
3205 return true;
3206 else if (compress_mode == COMPR_MODE_USER &&
3207 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3208 return true;
3209
3210 return false;
3211 }
3212
addrs_per_inode(struct inode * inode)3213 static inline unsigned int addrs_per_inode(struct inode *inode)
3214 {
3215 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3216 get_inline_xattr_addrs(inode);
3217
3218 if (!f2fs_compressed_file(inode))
3219 return addrs;
3220 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3221 }
3222
addrs_per_block(struct inode * inode)3223 static inline unsigned int addrs_per_block(struct inode *inode)
3224 {
3225 if (!f2fs_compressed_file(inode))
3226 return DEF_ADDRS_PER_BLOCK;
3227 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3228 }
3229
inline_xattr_addr(struct inode * inode,struct page * page)3230 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3231 {
3232 struct f2fs_inode *ri = F2FS_INODE(page);
3233
3234 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3235 get_inline_xattr_addrs(inode)]);
3236 }
3237
inline_xattr_size(struct inode * inode)3238 static inline int inline_xattr_size(struct inode *inode)
3239 {
3240 if (f2fs_has_inline_xattr(inode))
3241 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3242 return 0;
3243 }
3244
3245 /*
3246 * Notice: check inline_data flag without inode page lock is unsafe.
3247 * It could change at any time by f2fs_convert_inline_page().
3248 */
f2fs_has_inline_data(struct inode * inode)3249 static inline int f2fs_has_inline_data(struct inode *inode)
3250 {
3251 return is_inode_flag_set(inode, FI_INLINE_DATA);
3252 }
3253
f2fs_exist_data(struct inode * inode)3254 static inline int f2fs_exist_data(struct inode *inode)
3255 {
3256 return is_inode_flag_set(inode, FI_DATA_EXIST);
3257 }
3258
f2fs_has_inline_dots(struct inode * inode)3259 static inline int f2fs_has_inline_dots(struct inode *inode)
3260 {
3261 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3262 }
3263
f2fs_is_mmap_file(struct inode * inode)3264 static inline int f2fs_is_mmap_file(struct inode *inode)
3265 {
3266 return is_inode_flag_set(inode, FI_MMAP_FILE);
3267 }
3268
f2fs_is_pinned_file(struct inode * inode)3269 static inline bool f2fs_is_pinned_file(struct inode *inode)
3270 {
3271 return is_inode_flag_set(inode, FI_PIN_FILE);
3272 }
3273
f2fs_is_atomic_file(struct inode * inode)3274 static inline bool f2fs_is_atomic_file(struct inode *inode)
3275 {
3276 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3277 }
3278
f2fs_is_cow_file(struct inode * inode)3279 static inline bool f2fs_is_cow_file(struct inode *inode)
3280 {
3281 return is_inode_flag_set(inode, FI_COW_FILE);
3282 }
3283
3284 static inline __le32 *get_dnode_addr(struct inode *inode,
3285 struct page *node_page);
inline_data_addr(struct inode * inode,struct page * page)3286 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3287 {
3288 __le32 *addr = get_dnode_addr(inode, page);
3289
3290 return (void *)(addr + DEF_INLINE_RESERVED_SIZE);
3291 }
3292
f2fs_has_inline_dentry(struct inode * inode)3293 static inline int f2fs_has_inline_dentry(struct inode *inode)
3294 {
3295 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3296 }
3297
is_file(struct inode * inode,int type)3298 static inline int is_file(struct inode *inode, int type)
3299 {
3300 return F2FS_I(inode)->i_advise & type;
3301 }
3302
set_file(struct inode * inode,int type)3303 static inline void set_file(struct inode *inode, int type)
3304 {
3305 if (is_file(inode, type))
3306 return;
3307 F2FS_I(inode)->i_advise |= type;
3308 f2fs_mark_inode_dirty_sync(inode, true);
3309 }
3310
clear_file(struct inode * inode,int type)3311 static inline void clear_file(struct inode *inode, int type)
3312 {
3313 if (!is_file(inode, type))
3314 return;
3315 F2FS_I(inode)->i_advise &= ~type;
3316 f2fs_mark_inode_dirty_sync(inode, true);
3317 }
3318
f2fs_is_time_consistent(struct inode * inode)3319 static inline bool f2fs_is_time_consistent(struct inode *inode)
3320 {
3321 struct timespec64 ctime = inode_get_ctime(inode);
3322
3323 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3324 return false;
3325 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &ctime))
3326 return false;
3327 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3328 return false;
3329 return true;
3330 }
3331
f2fs_skip_inode_update(struct inode * inode,int dsync)3332 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3333 {
3334 bool ret;
3335
3336 if (dsync) {
3337 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3338
3339 spin_lock(&sbi->inode_lock[DIRTY_META]);
3340 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3341 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3342 return ret;
3343 }
3344 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3345 file_keep_isize(inode) ||
3346 i_size_read(inode) & ~PAGE_MASK)
3347 return false;
3348
3349 if (!f2fs_is_time_consistent(inode))
3350 return false;
3351
3352 spin_lock(&F2FS_I(inode)->i_size_lock);
3353 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3354 spin_unlock(&F2FS_I(inode)->i_size_lock);
3355
3356 return ret;
3357 }
3358
f2fs_readonly(struct super_block * sb)3359 static inline bool f2fs_readonly(struct super_block *sb)
3360 {
3361 return sb_rdonly(sb);
3362 }
3363
f2fs_cp_error(struct f2fs_sb_info * sbi)3364 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3365 {
3366 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3367 }
3368
is_dot_dotdot(const u8 * name,size_t len)3369 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3370 {
3371 if (len == 1 && name[0] == '.')
3372 return true;
3373
3374 if (len == 2 && name[0] == '.' && name[1] == '.')
3375 return true;
3376
3377 return false;
3378 }
3379
f2fs_kmalloc(struct f2fs_sb_info * sbi,size_t size,gfp_t flags)3380 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3381 size_t size, gfp_t flags)
3382 {
3383 if (time_to_inject(sbi, FAULT_KMALLOC))
3384 return NULL;
3385
3386 return kmalloc(size, flags);
3387 }
3388
f2fs_getname(struct f2fs_sb_info * sbi)3389 static inline void *f2fs_getname(struct f2fs_sb_info *sbi)
3390 {
3391 if (time_to_inject(sbi, FAULT_KMALLOC))
3392 return NULL;
3393
3394 return __getname();
3395 }
3396
f2fs_putname(char * buf)3397 static inline void f2fs_putname(char *buf)
3398 {
3399 __putname(buf);
3400 }
3401
f2fs_kzalloc(struct f2fs_sb_info * sbi,size_t size,gfp_t flags)3402 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3403 size_t size, gfp_t flags)
3404 {
3405 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3406 }
3407
f2fs_kvmalloc(struct f2fs_sb_info * sbi,size_t size,gfp_t flags)3408 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3409 size_t size, gfp_t flags)
3410 {
3411 if (time_to_inject(sbi, FAULT_KVMALLOC))
3412 return NULL;
3413
3414 return kvmalloc(size, flags);
3415 }
3416
f2fs_kvzalloc(struct f2fs_sb_info * sbi,size_t size,gfp_t flags)3417 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3418 size_t size, gfp_t flags)
3419 {
3420 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3421 }
3422
get_extra_isize(struct inode * inode)3423 static inline int get_extra_isize(struct inode *inode)
3424 {
3425 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3426 }
3427
get_inline_xattr_addrs(struct inode * inode)3428 static inline int get_inline_xattr_addrs(struct inode *inode)
3429 {
3430 return F2FS_I(inode)->i_inline_xattr_size;
3431 }
3432
get_dnode_addr(struct inode * inode,struct page * node_page)3433 static inline __le32 *get_dnode_addr(struct inode *inode,
3434 struct page *node_page)
3435 {
3436 int base = 0;
3437
3438 if (IS_INODE(node_page) && f2fs_has_extra_attr(inode))
3439 base = get_extra_isize(inode);
3440
3441 return blkaddr_in_node(F2FS_NODE(node_page)) + base;
3442 }
3443
3444 #define f2fs_get_inode_mode(i) \
3445 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3446 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3447
3448 #define F2FS_MIN_EXTRA_ATTR_SIZE (sizeof(__le32))
3449
3450 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3451 (offsetof(struct f2fs_inode, i_extra_end) - \
3452 offsetof(struct f2fs_inode, i_extra_isize)) \
3453
3454 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3455 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3456 ((offsetof(typeof(*(f2fs_inode)), field) + \
3457 sizeof((f2fs_inode)->field)) \
3458 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3459
3460 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3461
3462 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3463
3464 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3465 block_t blkaddr, int type);
verify_blkaddr(struct f2fs_sb_info * sbi,block_t blkaddr,int type)3466 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3467 block_t blkaddr, int type)
3468 {
3469 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type))
3470 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3471 blkaddr, type);
3472 }
3473
__is_valid_data_blkaddr(block_t blkaddr)3474 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3475 {
3476 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3477 blkaddr == COMPRESS_ADDR)
3478 return false;
3479 return true;
3480 }
3481
3482 /*
3483 * file.c
3484 */
3485 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3486 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3487 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3488 int f2fs_truncate(struct inode *inode);
3489 int f2fs_getattr(struct mnt_idmap *idmap, const struct path *path,
3490 struct kstat *stat, u32 request_mask, unsigned int flags);
3491 int f2fs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
3492 struct iattr *attr);
3493 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3494 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3495 int f2fs_precache_extents(struct inode *inode);
3496 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3497 int f2fs_fileattr_set(struct mnt_idmap *idmap,
3498 struct dentry *dentry, struct fileattr *fa);
3499 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3500 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3501 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3502 int f2fs_pin_file_control(struct inode *inode, bool inc);
3503
3504 /*
3505 * inode.c
3506 */
3507 void f2fs_set_inode_flags(struct inode *inode);
3508 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3509 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3510 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3511 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3512 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3513 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3514 void f2fs_update_inode_page(struct inode *inode);
3515 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3516 void f2fs_evict_inode(struct inode *inode);
3517 void f2fs_handle_failed_inode(struct inode *inode);
3518
3519 /*
3520 * namei.c
3521 */
3522 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3523 bool hot, bool set);
3524 struct dentry *f2fs_get_parent(struct dentry *child);
3525 int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
3526 struct inode **new_inode);
3527
3528 /*
3529 * dir.c
3530 */
3531 int f2fs_init_casefolded_name(const struct inode *dir,
3532 struct f2fs_filename *fname);
3533 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3534 int lookup, struct f2fs_filename *fname);
3535 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3536 struct f2fs_filename *fname);
3537 void f2fs_free_filename(struct f2fs_filename *fname);
3538 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3539 const struct f2fs_filename *fname, int *max_slots);
3540 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3541 unsigned int start_pos, struct fscrypt_str *fstr);
3542 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3543 struct f2fs_dentry_ptr *d);
3544 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3545 const struct f2fs_filename *fname, struct page *dpage);
3546 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3547 unsigned int current_depth);
3548 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3549 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3550 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3551 const struct f2fs_filename *fname,
3552 struct page **res_page);
3553 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3554 const struct qstr *child, struct page **res_page);
3555 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3556 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3557 struct page **page);
3558 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3559 struct page *page, struct inode *inode);
3560 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3561 const struct f2fs_filename *fname);
3562 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3563 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3564 unsigned int bit_pos);
3565 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3566 struct inode *inode, nid_t ino, umode_t mode);
3567 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3568 struct inode *inode, nid_t ino, umode_t mode);
3569 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3570 struct inode *inode, nid_t ino, umode_t mode);
3571 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3572 struct inode *dir, struct inode *inode);
3573 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir,
3574 struct f2fs_filename *fname);
3575 bool f2fs_empty_dir(struct inode *dir);
3576
f2fs_add_link(struct dentry * dentry,struct inode * inode)3577 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3578 {
3579 if (fscrypt_is_nokey_name(dentry))
3580 return -ENOKEY;
3581 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3582 inode, inode->i_ino, inode->i_mode);
3583 }
3584
3585 /*
3586 * super.c
3587 */
3588 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3589 void f2fs_inode_synced(struct inode *inode);
3590 int f2fs_dquot_initialize(struct inode *inode);
3591 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3592 int f2fs_quota_sync(struct super_block *sb, int type);
3593 loff_t max_file_blocks(struct inode *inode);
3594 void f2fs_quota_off_umount(struct super_block *sb);
3595 void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag);
3596 void f2fs_handle_critical_error(struct f2fs_sb_info *sbi, unsigned char reason,
3597 bool irq_context);
3598 void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error);
3599 void f2fs_handle_error_async(struct f2fs_sb_info *sbi, unsigned char error);
3600 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3601 int f2fs_sync_fs(struct super_block *sb, int sync);
3602 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3603
3604 /*
3605 * hash.c
3606 */
3607 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3608
3609 /*
3610 * node.c
3611 */
3612 struct node_info;
3613
3614 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3615 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3616 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3617 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3618 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3619 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3620 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3621 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3622 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3623 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3624 struct node_info *ni, bool checkpoint_context);
3625 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3626 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3627 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3628 int f2fs_truncate_xattr_node(struct inode *inode);
3629 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3630 unsigned int seq_id);
3631 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3632 int f2fs_remove_inode_page(struct inode *inode);
3633 struct page *f2fs_new_inode_page(struct inode *inode);
3634 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3635 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3636 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3637 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3638 int f2fs_move_node_page(struct page *node_page, int gc_type);
3639 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3640 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3641 struct writeback_control *wbc, bool atomic,
3642 unsigned int *seq_id);
3643 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3644 struct writeback_control *wbc,
3645 bool do_balance, enum iostat_type io_type);
3646 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3647 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3648 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3649 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3650 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3651 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3652 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3653 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3654 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3655 unsigned int segno, struct f2fs_summary_block *sum);
3656 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3657 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3658 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3659 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3660 int __init f2fs_create_node_manager_caches(void);
3661 void f2fs_destroy_node_manager_caches(void);
3662
3663 /*
3664 * segment.c
3665 */
3666 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3667 int f2fs_commit_atomic_write(struct inode *inode);
3668 void f2fs_abort_atomic_write(struct inode *inode, bool clean);
3669 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3670 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3671 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3672 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3673 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3674 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3675 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3676 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3677 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3678 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3679 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3680 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3681 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3682 struct cp_control *cpc);
3683 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3684 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3685 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3686 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3687 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3688 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3689 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3690 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3691 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3692 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3693 unsigned int *newseg, bool new_sec, int dir);
3694 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3695 unsigned int start, unsigned int end);
3696 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3697 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3698 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3699 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3700 struct cp_control *cpc);
3701 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3702 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3703 block_t blk_addr);
3704 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3705 enum iostat_type io_type);
3706 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3707 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3708 struct f2fs_io_info *fio);
3709 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3710 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3711 block_t old_blkaddr, block_t new_blkaddr,
3712 bool recover_curseg, bool recover_newaddr,
3713 bool from_gc);
3714 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3715 block_t old_addr, block_t new_addr,
3716 unsigned char version, bool recover_curseg,
3717 bool recover_newaddr);
3718 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3719 block_t old_blkaddr, block_t *new_blkaddr,
3720 struct f2fs_summary *sum, int type,
3721 struct f2fs_io_info *fio);
3722 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
3723 block_t blkaddr, unsigned int blkcnt);
3724 void f2fs_wait_on_page_writeback(struct page *page,
3725 enum page_type type, bool ordered, bool locked);
3726 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3727 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3728 block_t len);
3729 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3730 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3731 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3732 unsigned int val, int alloc);
3733 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3734 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3735 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3736 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3737 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3738 int __init f2fs_create_segment_manager_caches(void);
3739 void f2fs_destroy_segment_manager_caches(void);
3740 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3741 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3742 unsigned int segno);
3743 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3744 unsigned int segno);
3745
3746 #define DEF_FRAGMENT_SIZE 4
3747 #define MIN_FRAGMENT_SIZE 1
3748 #define MAX_FRAGMENT_SIZE 512
3749
f2fs_need_rand_seg(struct f2fs_sb_info * sbi)3750 static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
3751 {
3752 return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
3753 F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
3754 }
3755
3756 /*
3757 * checkpoint.c
3758 */
3759 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io,
3760 unsigned char reason);
3761 void f2fs_flush_ckpt_thread(struct f2fs_sb_info *sbi);
3762 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3763 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3764 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3765 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3766 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3767 block_t blkaddr, int type);
3768 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3769 int type, bool sync);
3770 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index,
3771 unsigned int ra_blocks);
3772 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3773 long nr_to_write, enum iostat_type io_type);
3774 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3775 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3776 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3777 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3778 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3779 unsigned int devidx, int type);
3780 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3781 unsigned int devidx, int type);
3782 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3783 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3784 void f2fs_add_orphan_inode(struct inode *inode);
3785 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3786 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3787 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3788 void f2fs_update_dirty_folio(struct inode *inode, struct folio *folio);
3789 void f2fs_remove_dirty_inode(struct inode *inode);
3790 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type,
3791 bool from_cp);
3792 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3793 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3794 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3795 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3796 int __init f2fs_create_checkpoint_caches(void);
3797 void f2fs_destroy_checkpoint_caches(void);
3798 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3799 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3800 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3801 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3802
3803 /*
3804 * data.c
3805 */
3806 int __init f2fs_init_bioset(void);
3807 void f2fs_destroy_bioset(void);
3808 bool f2fs_is_cp_guaranteed(struct page *page);
3809 int f2fs_init_bio_entry_cache(void);
3810 void f2fs_destroy_bio_entry_cache(void);
3811 void f2fs_submit_read_bio(struct f2fs_sb_info *sbi, struct bio *bio,
3812 enum page_type type);
3813 int f2fs_init_write_merge_io(struct f2fs_sb_info *sbi);
3814 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3815 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3816 struct inode *inode, struct page *page,
3817 nid_t ino, enum page_type type);
3818 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3819 struct bio **bio, struct page *page);
3820 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3821 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3822 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3823 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3824 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3825 block_t blk_addr, sector_t *sector);
3826 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3827 void f2fs_set_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3828 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3829 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3830 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3831 int f2fs_get_block_locked(struct dnode_of_data *dn, pgoff_t index);
3832 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3833 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3834 blk_opf_t op_flags, bool for_write, pgoff_t *next_pgofs);
3835 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index,
3836 pgoff_t *next_pgofs);
3837 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3838 bool for_write);
3839 struct page *f2fs_get_new_data_page(struct inode *inode,
3840 struct page *ipage, pgoff_t index, bool new_i_size);
3841 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3842 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, int flag);
3843 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3844 u64 start, u64 len);
3845 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3846 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3847 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3848 int f2fs_write_single_data_page(struct page *page, int *submitted,
3849 struct bio **bio, sector_t *last_block,
3850 struct writeback_control *wbc,
3851 enum iostat_type io_type,
3852 int compr_blocks, bool allow_balance);
3853 void f2fs_write_failed(struct inode *inode, loff_t to);
3854 void f2fs_invalidate_folio(struct folio *folio, size_t offset, size_t length);
3855 bool f2fs_release_folio(struct folio *folio, gfp_t wait);
3856 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3857 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3858 int f2fs_init_post_read_processing(void);
3859 void f2fs_destroy_post_read_processing(void);
3860 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3861 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3862 extern const struct iomap_ops f2fs_iomap_ops;
3863
3864 /*
3865 * gc.c
3866 */
3867 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3868 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3869 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3870 int f2fs_gc(struct f2fs_sb_info *sbi, struct f2fs_gc_control *gc_control);
3871 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3872 int f2fs_resize_fs(struct file *filp, __u64 block_count);
3873 int __init f2fs_create_garbage_collection_cache(void);
3874 void f2fs_destroy_garbage_collection_cache(void);
3875 /* victim selection function for cleaning and SSR */
3876 int f2fs_get_victim(struct f2fs_sb_info *sbi, unsigned int *result,
3877 int gc_type, int type, char alloc_mode,
3878 unsigned long long age);
3879
3880 /*
3881 * recovery.c
3882 */
3883 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3884 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3885 int __init f2fs_create_recovery_cache(void);
3886 void f2fs_destroy_recovery_cache(void);
3887
3888 /*
3889 * debug.c
3890 */
3891 #ifdef CONFIG_F2FS_STAT_FS
3892 struct f2fs_stat_info {
3893 struct list_head stat_list;
3894 struct f2fs_sb_info *sbi;
3895 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3896 int main_area_segs, main_area_sections, main_area_zones;
3897 unsigned long long hit_cached[NR_EXTENT_CACHES];
3898 unsigned long long hit_rbtree[NR_EXTENT_CACHES];
3899 unsigned long long total_ext[NR_EXTENT_CACHES];
3900 unsigned long long hit_total[NR_EXTENT_CACHES];
3901 int ext_tree[NR_EXTENT_CACHES];
3902 int zombie_tree[NR_EXTENT_CACHES];
3903 int ext_node[NR_EXTENT_CACHES];
3904 /* to count memory footprint */
3905 unsigned long long ext_mem[NR_EXTENT_CACHES];
3906 /* for read extent cache */
3907 unsigned long long hit_largest;
3908 /* for block age extent cache */
3909 unsigned long long allocated_data_blocks;
3910 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3911 int ndirty_data, ndirty_qdata;
3912 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3913 int nats, dirty_nats, sits, dirty_sits;
3914 int free_nids, avail_nids, alloc_nids;
3915 int total_count, utilization;
3916 int nr_wb_cp_data, nr_wb_data;
3917 int nr_rd_data, nr_rd_node, nr_rd_meta;
3918 int nr_dio_read, nr_dio_write;
3919 unsigned int io_skip_bggc, other_skip_bggc;
3920 int nr_flushing, nr_flushed, flush_list_empty;
3921 int nr_discarding, nr_discarded;
3922 int nr_discard_cmd;
3923 unsigned int undiscard_blks;
3924 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3925 unsigned int cur_ckpt_time, peak_ckpt_time;
3926 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3927 int compr_inode, swapfile_inode;
3928 unsigned long long compr_blocks;
3929 int aw_cnt, max_aw_cnt;
3930 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3931 unsigned int bimodal, avg_vblocks;
3932 int util_free, util_valid, util_invalid;
3933 int rsvd_segs, overp_segs;
3934 int dirty_count, node_pages, meta_pages, compress_pages;
3935 int compress_page_hit;
3936 int prefree_count, free_segs, free_secs;
3937 int cp_call_count[MAX_CALL_TYPE], cp_count;
3938 int gc_call_count[MAX_CALL_TYPE];
3939 int gc_segs[2][2];
3940 int gc_secs[2][2];
3941 int tot_blks, data_blks, node_blks;
3942 int bg_data_blks, bg_node_blks;
3943 int curseg[NR_CURSEG_TYPE];
3944 int cursec[NR_CURSEG_TYPE];
3945 int curzone[NR_CURSEG_TYPE];
3946 unsigned int dirty_seg[NR_CURSEG_TYPE];
3947 unsigned int full_seg[NR_CURSEG_TYPE];
3948 unsigned int valid_blks[NR_CURSEG_TYPE];
3949
3950 unsigned int meta_count[META_MAX];
3951 unsigned int segment_count[2];
3952 unsigned int block_count[2];
3953 unsigned int inplace_count;
3954 unsigned long long base_mem, cache_mem, page_mem;
3955 };
3956
F2FS_STAT(struct f2fs_sb_info * sbi)3957 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3958 {
3959 return (struct f2fs_stat_info *)sbi->stat_info;
3960 }
3961
3962 #define stat_inc_cp_call_count(sbi, foreground) \
3963 atomic_inc(&sbi->cp_call_count[(foreground)])
3964 #define stat_inc_cp_count(si) (F2FS_STAT(sbi)->cp_count++)
3965 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3966 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3967 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3968 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3969 #define stat_inc_total_hit(sbi, type) (atomic64_inc(&(sbi)->total_hit_ext[type]))
3970 #define stat_inc_rbtree_node_hit(sbi, type) (atomic64_inc(&(sbi)->read_hit_rbtree[type]))
3971 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3972 #define stat_inc_cached_node_hit(sbi, type) (atomic64_inc(&(sbi)->read_hit_cached[type]))
3973 #define stat_inc_inline_xattr(inode) \
3974 do { \
3975 if (f2fs_has_inline_xattr(inode)) \
3976 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3977 } while (0)
3978 #define stat_dec_inline_xattr(inode) \
3979 do { \
3980 if (f2fs_has_inline_xattr(inode)) \
3981 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3982 } while (0)
3983 #define stat_inc_inline_inode(inode) \
3984 do { \
3985 if (f2fs_has_inline_data(inode)) \
3986 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3987 } while (0)
3988 #define stat_dec_inline_inode(inode) \
3989 do { \
3990 if (f2fs_has_inline_data(inode)) \
3991 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3992 } while (0)
3993 #define stat_inc_inline_dir(inode) \
3994 do { \
3995 if (f2fs_has_inline_dentry(inode)) \
3996 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3997 } while (0)
3998 #define stat_dec_inline_dir(inode) \
3999 do { \
4000 if (f2fs_has_inline_dentry(inode)) \
4001 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
4002 } while (0)
4003 #define stat_inc_compr_inode(inode) \
4004 do { \
4005 if (f2fs_compressed_file(inode)) \
4006 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
4007 } while (0)
4008 #define stat_dec_compr_inode(inode) \
4009 do { \
4010 if (f2fs_compressed_file(inode)) \
4011 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
4012 } while (0)
4013 #define stat_add_compr_blocks(inode, blocks) \
4014 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
4015 #define stat_sub_compr_blocks(inode, blocks) \
4016 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
4017 #define stat_inc_swapfile_inode(inode) \
4018 (atomic_inc(&F2FS_I_SB(inode)->swapfile_inode))
4019 #define stat_dec_swapfile_inode(inode) \
4020 (atomic_dec(&F2FS_I_SB(inode)->swapfile_inode))
4021 #define stat_inc_atomic_inode(inode) \
4022 (atomic_inc(&F2FS_I_SB(inode)->atomic_files))
4023 #define stat_dec_atomic_inode(inode) \
4024 (atomic_dec(&F2FS_I_SB(inode)->atomic_files))
4025 #define stat_inc_meta_count(sbi, blkaddr) \
4026 do { \
4027 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
4028 atomic_inc(&(sbi)->meta_count[META_CP]); \
4029 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
4030 atomic_inc(&(sbi)->meta_count[META_SIT]); \
4031 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
4032 atomic_inc(&(sbi)->meta_count[META_NAT]); \
4033 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
4034 atomic_inc(&(sbi)->meta_count[META_SSA]); \
4035 } while (0)
4036 #define stat_inc_seg_type(sbi, curseg) \
4037 ((sbi)->segment_count[(curseg)->alloc_type]++)
4038 #define stat_inc_block_count(sbi, curseg) \
4039 ((sbi)->block_count[(curseg)->alloc_type]++)
4040 #define stat_inc_inplace_blocks(sbi) \
4041 (atomic_inc(&(sbi)->inplace_count))
4042 #define stat_update_max_atomic_write(inode) \
4043 do { \
4044 int cur = atomic_read(&F2FS_I_SB(inode)->atomic_files); \
4045 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
4046 if (cur > max) \
4047 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
4048 } while (0)
4049 #define stat_inc_gc_call_count(sbi, foreground) \
4050 (F2FS_STAT(sbi)->gc_call_count[(foreground)]++)
4051 #define stat_inc_gc_sec_count(sbi, type, gc_type) \
4052 (F2FS_STAT(sbi)->gc_secs[(type)][(gc_type)]++)
4053 #define stat_inc_gc_seg_count(sbi, type, gc_type) \
4054 (F2FS_STAT(sbi)->gc_segs[(type)][(gc_type)]++)
4055
4056 #define stat_inc_tot_blk_count(si, blks) \
4057 ((si)->tot_blks += (blks))
4058
4059 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
4060 do { \
4061 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
4062 stat_inc_tot_blk_count(si, blks); \
4063 si->data_blks += (blks); \
4064 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
4065 } while (0)
4066
4067 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
4068 do { \
4069 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
4070 stat_inc_tot_blk_count(si, blks); \
4071 si->node_blks += (blks); \
4072 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
4073 } while (0)
4074
4075 int f2fs_build_stats(struct f2fs_sb_info *sbi);
4076 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
4077 void __init f2fs_create_root_stats(void);
4078 void f2fs_destroy_root_stats(void);
4079 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
4080 #else
4081 #define stat_inc_cp_call_count(sbi, foreground) do { } while (0)
4082 #define stat_inc_cp_count(sbi) do { } while (0)
4083 #define stat_io_skip_bggc_count(sbi) do { } while (0)
4084 #define stat_other_skip_bggc_count(sbi) do { } while (0)
4085 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
4086 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
4087 #define stat_inc_total_hit(sbi, type) do { } while (0)
4088 #define stat_inc_rbtree_node_hit(sbi, type) do { } while (0)
4089 #define stat_inc_largest_node_hit(sbi) do { } while (0)
4090 #define stat_inc_cached_node_hit(sbi, type) do { } while (0)
4091 #define stat_inc_inline_xattr(inode) do { } while (0)
4092 #define stat_dec_inline_xattr(inode) do { } while (0)
4093 #define stat_inc_inline_inode(inode) do { } while (0)
4094 #define stat_dec_inline_inode(inode) do { } while (0)
4095 #define stat_inc_inline_dir(inode) do { } while (0)
4096 #define stat_dec_inline_dir(inode) do { } while (0)
4097 #define stat_inc_compr_inode(inode) do { } while (0)
4098 #define stat_dec_compr_inode(inode) do { } while (0)
4099 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
4100 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
4101 #define stat_inc_swapfile_inode(inode) do { } while (0)
4102 #define stat_dec_swapfile_inode(inode) do { } while (0)
4103 #define stat_inc_atomic_inode(inode) do { } while (0)
4104 #define stat_dec_atomic_inode(inode) do { } while (0)
4105 #define stat_update_max_atomic_write(inode) do { } while (0)
4106 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
4107 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
4108 #define stat_inc_block_count(sbi, curseg) do { } while (0)
4109 #define stat_inc_inplace_blocks(sbi) do { } while (0)
4110 #define stat_inc_gc_call_count(sbi, foreground) do { } while (0)
4111 #define stat_inc_gc_sec_count(sbi, type, gc_type) do { } while (0)
4112 #define stat_inc_gc_seg_count(sbi, type, gc_type) do { } while (0)
4113 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
4114 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
4115 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
4116
f2fs_build_stats(struct f2fs_sb_info * sbi)4117 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
f2fs_destroy_stats(struct f2fs_sb_info * sbi)4118 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
f2fs_create_root_stats(void)4119 static inline void __init f2fs_create_root_stats(void) { }
f2fs_destroy_root_stats(void)4120 static inline void f2fs_destroy_root_stats(void) { }
f2fs_update_sit_info(struct f2fs_sb_info * sbi)4121 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
4122 #endif
4123
4124 extern const struct file_operations f2fs_dir_operations;
4125 extern const struct file_operations f2fs_file_operations;
4126 extern const struct inode_operations f2fs_file_inode_operations;
4127 extern const struct address_space_operations f2fs_dblock_aops;
4128 extern const struct address_space_operations f2fs_node_aops;
4129 extern const struct address_space_operations f2fs_meta_aops;
4130 extern const struct inode_operations f2fs_dir_inode_operations;
4131 extern const struct inode_operations f2fs_symlink_inode_operations;
4132 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
4133 extern const struct inode_operations f2fs_special_inode_operations;
4134 extern struct kmem_cache *f2fs_inode_entry_slab;
4135
4136 /*
4137 * inline.c
4138 */
4139 bool f2fs_may_inline_data(struct inode *inode);
4140 bool f2fs_sanity_check_inline_data(struct inode *inode);
4141 bool f2fs_may_inline_dentry(struct inode *inode);
4142 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
4143 void f2fs_truncate_inline_inode(struct inode *inode,
4144 struct page *ipage, u64 from);
4145 int f2fs_read_inline_data(struct inode *inode, struct page *page);
4146 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
4147 int f2fs_convert_inline_inode(struct inode *inode);
4148 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
4149 int f2fs_write_inline_data(struct inode *inode, struct page *page);
4150 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
4151 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
4152 const struct f2fs_filename *fname,
4153 struct page **res_page);
4154 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
4155 struct page *ipage);
4156 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
4157 struct inode *inode, nid_t ino, umode_t mode);
4158 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
4159 struct page *page, struct inode *dir,
4160 struct inode *inode);
4161 bool f2fs_empty_inline_dir(struct inode *dir);
4162 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
4163 struct fscrypt_str *fstr);
4164 int f2fs_inline_data_fiemap(struct inode *inode,
4165 struct fiemap_extent_info *fieinfo,
4166 __u64 start, __u64 len);
4167
4168 /*
4169 * shrinker.c
4170 */
4171 unsigned long f2fs_shrink_count(struct shrinker *shrink,
4172 struct shrink_control *sc);
4173 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
4174 struct shrink_control *sc);
4175 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
4176 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
4177
4178 /*
4179 * extent_cache.c
4180 */
4181 bool sanity_check_extent_cache(struct inode *inode);
4182 void f2fs_init_extent_tree(struct inode *inode);
4183 void f2fs_drop_extent_tree(struct inode *inode);
4184 void f2fs_destroy_extent_node(struct inode *inode);
4185 void f2fs_destroy_extent_tree(struct inode *inode);
4186 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
4187 int __init f2fs_create_extent_cache(void);
4188 void f2fs_destroy_extent_cache(void);
4189
4190 /* read extent cache ops */
4191 void f2fs_init_read_extent_tree(struct inode *inode, struct page *ipage);
4192 bool f2fs_lookup_read_extent_cache(struct inode *inode, pgoff_t pgofs,
4193 struct extent_info *ei);
4194 bool f2fs_lookup_read_extent_cache_block(struct inode *inode, pgoff_t index,
4195 block_t *blkaddr);
4196 void f2fs_update_read_extent_cache(struct dnode_of_data *dn);
4197 void f2fs_update_read_extent_cache_range(struct dnode_of_data *dn,
4198 pgoff_t fofs, block_t blkaddr, unsigned int len);
4199 unsigned int f2fs_shrink_read_extent_tree(struct f2fs_sb_info *sbi,
4200 int nr_shrink);
4201
4202 /* block age extent cache ops */
4203 void f2fs_init_age_extent_tree(struct inode *inode);
4204 bool f2fs_lookup_age_extent_cache(struct inode *inode, pgoff_t pgofs,
4205 struct extent_info *ei);
4206 void f2fs_update_age_extent_cache(struct dnode_of_data *dn);
4207 void f2fs_update_age_extent_cache_range(struct dnode_of_data *dn,
4208 pgoff_t fofs, unsigned int len);
4209 unsigned int f2fs_shrink_age_extent_tree(struct f2fs_sb_info *sbi,
4210 int nr_shrink);
4211
4212 /*
4213 * sysfs.c
4214 */
4215 #define MIN_RA_MUL 2
4216 #define MAX_RA_MUL 256
4217
4218 int __init f2fs_init_sysfs(void);
4219 void f2fs_exit_sysfs(void);
4220 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4221 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4222
4223 /* verity.c */
4224 extern const struct fsverity_operations f2fs_verityops;
4225
4226 /*
4227 * crypto support
4228 */
f2fs_encrypted_file(struct inode * inode)4229 static inline bool f2fs_encrypted_file(struct inode *inode)
4230 {
4231 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4232 }
4233
f2fs_set_encrypted_inode(struct inode * inode)4234 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4235 {
4236 #ifdef CONFIG_FS_ENCRYPTION
4237 file_set_encrypt(inode);
4238 f2fs_set_inode_flags(inode);
4239 #endif
4240 }
4241
4242 /*
4243 * Returns true if the reads of the inode's data need to undergo some
4244 * postprocessing step, like decryption or authenticity verification.
4245 */
f2fs_post_read_required(struct inode * inode)4246 static inline bool f2fs_post_read_required(struct inode *inode)
4247 {
4248 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4249 f2fs_compressed_file(inode);
4250 }
4251
4252 /*
4253 * compress.c
4254 */
4255 #ifdef CONFIG_F2FS_FS_COMPRESSION
4256 bool f2fs_is_compressed_page(struct page *page);
4257 struct page *f2fs_compress_control_page(struct page *page);
4258 int f2fs_prepare_compress_overwrite(struct inode *inode,
4259 struct page **pagep, pgoff_t index, void **fsdata);
4260 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4261 pgoff_t index, unsigned copied);
4262 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4263 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4264 bool f2fs_is_compress_backend_ready(struct inode *inode);
4265 bool f2fs_is_compress_level_valid(int alg, int lvl);
4266 int __init f2fs_init_compress_mempool(void);
4267 void f2fs_destroy_compress_mempool(void);
4268 void f2fs_decompress_cluster(struct decompress_io_ctx *dic, bool in_task);
4269 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4270 block_t blkaddr, bool in_task);
4271 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4272 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4273 bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct page **pages,
4274 int index, int nr_pages, bool uptodate);
4275 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4276 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4277 int f2fs_write_multi_pages(struct compress_ctx *cc,
4278 int *submitted,
4279 struct writeback_control *wbc,
4280 enum iostat_type io_type);
4281 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4282 void f2fs_update_read_extent_tree_range_compressed(struct inode *inode,
4283 pgoff_t fofs, block_t blkaddr,
4284 unsigned int llen, unsigned int c_len);
4285 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4286 unsigned nr_pages, sector_t *last_block_in_bio,
4287 bool is_readahead, bool for_write);
4288 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4289 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed,
4290 bool in_task);
4291 void f2fs_put_page_dic(struct page *page, bool in_task);
4292 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn,
4293 unsigned int ofs_in_node);
4294 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4295 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4296 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4297 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4298 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4299 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4300 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4301 int __init f2fs_init_compress_cache(void);
4302 void f2fs_destroy_compress_cache(void);
4303 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4304 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4305 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4306 nid_t ino, block_t blkaddr);
4307 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4308 block_t blkaddr);
4309 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4310 #define inc_compr_inode_stat(inode) \
4311 do { \
4312 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4313 sbi->compr_new_inode++; \
4314 } while (0)
4315 #define add_compr_block_stat(inode, blocks) \
4316 do { \
4317 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4318 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4319 sbi->compr_written_block += blocks; \
4320 sbi->compr_saved_block += diff; \
4321 } while (0)
4322 #else
f2fs_is_compressed_page(struct page * page)4323 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
f2fs_is_compress_backend_ready(struct inode * inode)4324 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4325 {
4326 if (!f2fs_compressed_file(inode))
4327 return true;
4328 /* not support compression */
4329 return false;
4330 }
f2fs_is_compress_level_valid(int alg,int lvl)4331 static inline bool f2fs_is_compress_level_valid(int alg, int lvl) { return false; }
f2fs_compress_control_page(struct page * page)4332 static inline struct page *f2fs_compress_control_page(struct page *page)
4333 {
4334 WARN_ON_ONCE(1);
4335 return ERR_PTR(-EINVAL);
4336 }
f2fs_init_compress_mempool(void)4337 static inline int __init f2fs_init_compress_mempool(void) { return 0; }
f2fs_destroy_compress_mempool(void)4338 static inline void f2fs_destroy_compress_mempool(void) { }
f2fs_decompress_cluster(struct decompress_io_ctx * dic,bool in_task)4339 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic,
4340 bool in_task) { }
f2fs_end_read_compressed_page(struct page * page,bool failed,block_t blkaddr,bool in_task)4341 static inline void f2fs_end_read_compressed_page(struct page *page,
4342 bool failed, block_t blkaddr, bool in_task)
4343 {
4344 WARN_ON_ONCE(1);
4345 }
f2fs_put_page_dic(struct page * page,bool in_task)4346 static inline void f2fs_put_page_dic(struct page *page, bool in_task)
4347 {
4348 WARN_ON_ONCE(1);
4349 }
f2fs_cluster_blocks_are_contiguous(struct dnode_of_data * dn,unsigned int ofs_in_node)4350 static inline unsigned int f2fs_cluster_blocks_are_contiguous(
4351 struct dnode_of_data *dn, unsigned int ofs_in_node) { return 0; }
f2fs_sanity_check_cluster(struct dnode_of_data * dn)4352 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
f2fs_init_compress_inode(struct f2fs_sb_info * sbi)4353 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
f2fs_destroy_compress_inode(struct f2fs_sb_info * sbi)4354 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
f2fs_init_page_array_cache(struct f2fs_sb_info * sbi)4355 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)4356 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
f2fs_init_compress_cache(void)4357 static inline int __init f2fs_init_compress_cache(void) { return 0; }
f2fs_destroy_compress_cache(void)4358 static inline void f2fs_destroy_compress_cache(void) { }
f2fs_invalidate_compress_page(struct f2fs_sb_info * sbi,block_t blkaddr)4359 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4360 block_t blkaddr) { }
f2fs_cache_compressed_page(struct f2fs_sb_info * sbi,struct page * page,nid_t ino,block_t blkaddr)4361 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4362 struct page *page, nid_t ino, block_t blkaddr) { }
f2fs_load_compressed_page(struct f2fs_sb_info * sbi,struct page * page,block_t blkaddr)4363 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4364 struct page *page, block_t blkaddr) { return false; }
f2fs_invalidate_compress_pages(struct f2fs_sb_info * sbi,nid_t ino)4365 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4366 nid_t ino) { }
4367 #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)4368 static inline void f2fs_update_read_extent_tree_range_compressed(
4369 struct inode *inode,
4370 pgoff_t fofs, block_t blkaddr,
4371 unsigned int llen, unsigned int c_len) { }
4372 #endif
4373
set_compress_context(struct inode * inode)4374 static inline int set_compress_context(struct inode *inode)
4375 {
4376 #ifdef CONFIG_F2FS_FS_COMPRESSION
4377 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4378
4379 F2FS_I(inode)->i_compress_algorithm =
4380 F2FS_OPTION(sbi).compress_algorithm;
4381 F2FS_I(inode)->i_log_cluster_size =
4382 F2FS_OPTION(sbi).compress_log_size;
4383 F2FS_I(inode)->i_compress_flag =
4384 F2FS_OPTION(sbi).compress_chksum ?
4385 BIT(COMPRESS_CHKSUM) : 0;
4386 F2FS_I(inode)->i_cluster_size =
4387 BIT(F2FS_I(inode)->i_log_cluster_size);
4388 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4389 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4390 F2FS_OPTION(sbi).compress_level)
4391 F2FS_I(inode)->i_compress_level =
4392 F2FS_OPTION(sbi).compress_level;
4393 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4394 set_inode_flag(inode, FI_COMPRESSED_FILE);
4395 stat_inc_compr_inode(inode);
4396 inc_compr_inode_stat(inode);
4397 f2fs_mark_inode_dirty_sync(inode, true);
4398 return 0;
4399 #else
4400 return -EOPNOTSUPP;
4401 #endif
4402 }
4403
f2fs_disable_compressed_file(struct inode * inode)4404 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4405 {
4406 struct f2fs_inode_info *fi = F2FS_I(inode);
4407
4408 f2fs_down_write(&F2FS_I(inode)->i_sem);
4409
4410 if (!f2fs_compressed_file(inode)) {
4411 f2fs_up_write(&F2FS_I(inode)->i_sem);
4412 return true;
4413 }
4414 if (f2fs_is_mmap_file(inode) ||
4415 (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))) {
4416 f2fs_up_write(&F2FS_I(inode)->i_sem);
4417 return false;
4418 }
4419
4420 fi->i_flags &= ~F2FS_COMPR_FL;
4421 stat_dec_compr_inode(inode);
4422 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4423 f2fs_mark_inode_dirty_sync(inode, true);
4424
4425 f2fs_up_write(&F2FS_I(inode)->i_sem);
4426 return true;
4427 }
4428
4429 #define F2FS_FEATURE_FUNCS(name, flagname) \
4430 static inline bool f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4431 { \
4432 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4433 }
4434
4435 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4436 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4437 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4438 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4439 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4440 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4441 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4442 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4443 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4444 F2FS_FEATURE_FUNCS(verity, VERITY);
4445 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4446 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4447 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4448 F2FS_FEATURE_FUNCS(readonly, RO);
4449
4450 #ifdef CONFIG_BLK_DEV_ZONED
f2fs_blkz_is_seq(struct f2fs_sb_info * sbi,int devi,block_t blkaddr)4451 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4452 block_t blkaddr)
4453 {
4454 unsigned int zno = blkaddr / sbi->blocks_per_blkz;
4455
4456 return test_bit(zno, FDEV(devi).blkz_seq);
4457 }
4458 #endif
4459
f2fs_bdev_index(struct f2fs_sb_info * sbi,struct block_device * bdev)4460 static inline int f2fs_bdev_index(struct f2fs_sb_info *sbi,
4461 struct block_device *bdev)
4462 {
4463 int i;
4464
4465 if (!f2fs_is_multi_device(sbi))
4466 return 0;
4467
4468 for (i = 0; i < sbi->s_ndevs; i++)
4469 if (FDEV(i).bdev == bdev)
4470 return i;
4471
4472 WARN_ON(1);
4473 return -1;
4474 }
4475
f2fs_hw_should_discard(struct f2fs_sb_info * sbi)4476 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4477 {
4478 return f2fs_sb_has_blkzoned(sbi);
4479 }
4480
f2fs_bdev_support_discard(struct block_device * bdev)4481 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4482 {
4483 return bdev_max_discard_sectors(bdev) || bdev_is_zoned(bdev);
4484 }
4485
f2fs_hw_support_discard(struct f2fs_sb_info * sbi)4486 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4487 {
4488 int i;
4489
4490 if (!f2fs_is_multi_device(sbi))
4491 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4492
4493 for (i = 0; i < sbi->s_ndevs; i++)
4494 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4495 return true;
4496 return false;
4497 }
4498
f2fs_realtime_discard_enable(struct f2fs_sb_info * sbi)4499 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4500 {
4501 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4502 f2fs_hw_should_discard(sbi);
4503 }
4504
f2fs_hw_is_readonly(struct f2fs_sb_info * sbi)4505 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4506 {
4507 int i;
4508
4509 if (!f2fs_is_multi_device(sbi))
4510 return bdev_read_only(sbi->sb->s_bdev);
4511
4512 for (i = 0; i < sbi->s_ndevs; i++)
4513 if (bdev_read_only(FDEV(i).bdev))
4514 return true;
4515 return false;
4516 }
4517
f2fs_dev_is_readonly(struct f2fs_sb_info * sbi)4518 static inline bool f2fs_dev_is_readonly(struct f2fs_sb_info *sbi)
4519 {
4520 return f2fs_sb_has_readonly(sbi) || f2fs_hw_is_readonly(sbi);
4521 }
4522
f2fs_lfs_mode(struct f2fs_sb_info * sbi)4523 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4524 {
4525 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4526 }
4527
f2fs_low_mem_mode(struct f2fs_sb_info * sbi)4528 static inline bool f2fs_low_mem_mode(struct f2fs_sb_info *sbi)
4529 {
4530 return F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_LOW;
4531 }
4532
f2fs_may_compress(struct inode * inode)4533 static inline bool f2fs_may_compress(struct inode *inode)
4534 {
4535 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4536 f2fs_is_atomic_file(inode) || f2fs_has_inline_data(inode) ||
4537 f2fs_is_mmap_file(inode))
4538 return false;
4539 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4540 }
4541
f2fs_i_compr_blocks_update(struct inode * inode,u64 blocks,bool add)4542 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4543 u64 blocks, bool add)
4544 {
4545 struct f2fs_inode_info *fi = F2FS_I(inode);
4546 int diff = fi->i_cluster_size - blocks;
4547
4548 /* don't update i_compr_blocks if saved blocks were released */
4549 if (!add && !atomic_read(&fi->i_compr_blocks))
4550 return;
4551
4552 if (add) {
4553 atomic_add(diff, &fi->i_compr_blocks);
4554 stat_add_compr_blocks(inode, diff);
4555 } else {
4556 atomic_sub(diff, &fi->i_compr_blocks);
4557 stat_sub_compr_blocks(inode, diff);
4558 }
4559 f2fs_mark_inode_dirty_sync(inode, true);
4560 }
4561
f2fs_allow_multi_device_dio(struct f2fs_sb_info * sbi,int flag)4562 static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
4563 int flag)
4564 {
4565 if (!f2fs_is_multi_device(sbi))
4566 return false;
4567 if (flag != F2FS_GET_BLOCK_DIO)
4568 return false;
4569 return sbi->aligned_blksize;
4570 }
4571
f2fs_need_verity(const struct inode * inode,pgoff_t idx)4572 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4573 {
4574 return fsverity_active(inode) &&
4575 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4576 }
4577
4578 #ifdef CONFIG_F2FS_FAULT_INJECTION
4579 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4580 unsigned int type);
4581 #else
4582 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4583 #endif
4584
is_journalled_quota(struct f2fs_sb_info * sbi)4585 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4586 {
4587 #ifdef CONFIG_QUOTA
4588 if (f2fs_sb_has_quota_ino(sbi))
4589 return true;
4590 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4591 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4592 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4593 return true;
4594 #endif
4595 return false;
4596 }
4597
f2fs_block_unit_discard(struct f2fs_sb_info * sbi)4598 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4599 {
4600 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4601 }
4602
f2fs_io_schedule_timeout(long timeout)4603 static inline void f2fs_io_schedule_timeout(long timeout)
4604 {
4605 set_current_state(TASK_UNINTERRUPTIBLE);
4606 io_schedule_timeout(timeout);
4607 }
4608
f2fs_handle_page_eio(struct f2fs_sb_info * sbi,pgoff_t ofs,enum page_type type)4609 static inline void f2fs_handle_page_eio(struct f2fs_sb_info *sbi, pgoff_t ofs,
4610 enum page_type type)
4611 {
4612 if (unlikely(f2fs_cp_error(sbi)))
4613 return;
4614
4615 if (ofs == sbi->page_eio_ofs[type]) {
4616 if (sbi->page_eio_cnt[type]++ == MAX_RETRY_PAGE_EIO)
4617 set_ckpt_flags(sbi, CP_ERROR_FLAG);
4618 } else {
4619 sbi->page_eio_ofs[type] = ofs;
4620 sbi->page_eio_cnt[type] = 0;
4621 }
4622 }
4623
f2fs_is_readonly(struct f2fs_sb_info * sbi)4624 static inline bool f2fs_is_readonly(struct f2fs_sb_info *sbi)
4625 {
4626 return f2fs_sb_has_readonly(sbi) || f2fs_readonly(sbi->sb);
4627 }
4628
f2fs_truncate_meta_inode_pages(struct f2fs_sb_info * sbi,block_t blkaddr,unsigned int cnt)4629 static inline void f2fs_truncate_meta_inode_pages(struct f2fs_sb_info *sbi,
4630 block_t blkaddr, unsigned int cnt)
4631 {
4632 bool need_submit = false;
4633 int i = 0;
4634
4635 do {
4636 struct page *page;
4637
4638 page = find_get_page(META_MAPPING(sbi), blkaddr + i);
4639 if (page) {
4640 if (PageWriteback(page))
4641 need_submit = true;
4642 f2fs_put_page(page, 0);
4643 }
4644 } while (++i < cnt && !need_submit);
4645
4646 if (need_submit)
4647 f2fs_submit_merged_write_cond(sbi, sbi->meta_inode,
4648 NULL, 0, DATA);
4649
4650 truncate_inode_pages_range(META_MAPPING(sbi),
4651 F2FS_BLK_TO_BYTES((loff_t)blkaddr),
4652 F2FS_BLK_END_BYTES((loff_t)(blkaddr + cnt - 1)));
4653 }
4654
f2fs_invalidate_internal_cache(struct f2fs_sb_info * sbi,block_t blkaddr)4655 static inline void f2fs_invalidate_internal_cache(struct f2fs_sb_info *sbi,
4656 block_t blkaddr)
4657 {
4658 f2fs_truncate_meta_inode_pages(sbi, blkaddr, 1);
4659 f2fs_invalidate_compress_page(sbi, blkaddr);
4660 }
4661
4662 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4663 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4664
4665 #endif /* _LINUX_F2FS_H */
4666