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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/vmalloc.h> | |
22 | #include <linux/bio.h> | |
23 | #include <linux/blkdev.h> | |
24 | #include <linux/quotaops.h> | |
25 | #include <linux/part_stat.h> | |
26 | #include <crypto/hash.h> | |
27 | ||
28 | #include <linux/fscrypt.h> | |
29 | #include <linux/fsverity.h> | |
30 | ||
31 | #ifdef CONFIG_F2FS_CHECK_FS | |
32 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) | |
33 | #else | |
34 | #define f2fs_bug_on(sbi, condition) \ | |
35 | do { \ | |
36 | if (unlikely(condition)) { \ | |
37 | WARN_ON(1); \ | |
38 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ | |
39 | } \ | |
40 | } while (0) | |
41 | #endif | |
42 | ||
43 | enum { | |
44 | FAULT_KMALLOC, | |
45 | FAULT_KVMALLOC, | |
46 | FAULT_PAGE_ALLOC, | |
47 | FAULT_PAGE_GET, | |
48 | FAULT_ALLOC_BIO, | |
49 | FAULT_ALLOC_NID, | |
50 | FAULT_ORPHAN, | |
51 | FAULT_BLOCK, | |
52 | FAULT_DIR_DEPTH, | |
53 | FAULT_EVICT_INODE, | |
54 | FAULT_TRUNCATE, | |
55 | FAULT_READ_IO, | |
56 | FAULT_CHECKPOINT, | |
57 | FAULT_DISCARD, | |
58 | FAULT_WRITE_IO, | |
59 | FAULT_MAX, | |
60 | }; | |
61 | ||
62 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
63 | #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1) | |
64 | ||
65 | struct f2fs_fault_info { | |
66 | atomic_t inject_ops; | |
67 | unsigned int inject_rate; | |
68 | unsigned int inject_type; | |
69 | }; | |
70 | ||
71 | extern const char *f2fs_fault_name[FAULT_MAX]; | |
72 | #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type))) | |
73 | #endif | |
74 | ||
75 | /* | |
76 | * For mount options | |
77 | */ | |
78 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
79 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
80 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
81 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
82 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
83 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
84 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 | |
85 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 | |
86 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 | |
87 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
88 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
89 | #define F2FS_MOUNT_FASTBOOT 0x00001000 | |
90 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 | |
91 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 | |
92 | #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 | |
93 | #define F2FS_MOUNT_USRQUOTA 0x00080000 | |
94 | #define F2FS_MOUNT_GRPQUOTA 0x00100000 | |
95 | #define F2FS_MOUNT_PRJQUOTA 0x00200000 | |
96 | #define F2FS_MOUNT_QUOTA 0x00400000 | |
97 | #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000 | |
98 | #define F2FS_MOUNT_RESERVE_ROOT 0x01000000 | |
99 | #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000 | |
100 | #define F2FS_MOUNT_NORECOVERY 0x04000000 | |
101 | ||
102 | #define F2FS_OPTION(sbi) ((sbi)->mount_opt) | |
103 | #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option) | |
104 | #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option) | |
105 | #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option) | |
106 | ||
107 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
108 | typecheck(unsigned long long, b) && \ | |
109 | ((long long)((a) - (b)) > 0)) | |
110 | ||
111 | typedef u32 block_t; /* | |
112 | * should not change u32, since it is the on-disk block | |
113 | * address format, __le32. | |
114 | */ | |
115 | typedef u32 nid_t; | |
116 | ||
117 | #define COMPRESS_EXT_NUM 16 | |
118 | ||
119 | struct f2fs_mount_info { | |
120 | unsigned int opt; | |
121 | int write_io_size_bits; /* Write IO size bits */ | |
122 | block_t root_reserved_blocks; /* root reserved blocks */ | |
123 | kuid_t s_resuid; /* reserved blocks for uid */ | |
124 | kgid_t s_resgid; /* reserved blocks for gid */ | |
125 | int active_logs; /* # of active logs */ | |
126 | int inline_xattr_size; /* inline xattr size */ | |
127 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
128 | struct f2fs_fault_info fault_info; /* For fault injection */ | |
129 | #endif | |
130 | #ifdef CONFIG_QUOTA | |
131 | /* Names of quota files with journalled quota */ | |
132 | char *s_qf_names[MAXQUOTAS]; | |
133 | int s_jquota_fmt; /* Format of quota to use */ | |
134 | #endif | |
135 | /* For which write hints are passed down to block layer */ | |
136 | int whint_mode; | |
137 | int alloc_mode; /* segment allocation policy */ | |
138 | int fsync_mode; /* fsync policy */ | |
139 | int fs_mode; /* fs mode: LFS or ADAPTIVE */ | |
140 | int bggc_mode; /* bggc mode: off, on or sync */ | |
141 | bool test_dummy_encryption; /* test dummy encryption */ | |
142 | block_t unusable_cap; /* Amount of space allowed to be | |
143 | * unusable when disabling checkpoint | |
144 | */ | |
145 | ||
146 | /* For compression */ | |
147 | unsigned char compress_algorithm; /* algorithm type */ | |
148 | unsigned compress_log_size; /* cluster log size */ | |
149 | unsigned char compress_ext_cnt; /* extension count */ | |
150 | unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */ | |
151 | }; | |
152 | ||
153 | #define F2FS_FEATURE_ENCRYPT 0x0001 | |
154 | #define F2FS_FEATURE_BLKZONED 0x0002 | |
155 | #define F2FS_FEATURE_ATOMIC_WRITE 0x0004 | |
156 | #define F2FS_FEATURE_EXTRA_ATTR 0x0008 | |
157 | #define F2FS_FEATURE_PRJQUOTA 0x0010 | |
158 | #define F2FS_FEATURE_INODE_CHKSUM 0x0020 | |
159 | #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040 | |
160 | #define F2FS_FEATURE_QUOTA_INO 0x0080 | |
161 | #define F2FS_FEATURE_INODE_CRTIME 0x0100 | |
162 | #define F2FS_FEATURE_LOST_FOUND 0x0200 | |
163 | #define F2FS_FEATURE_VERITY 0x0400 | |
164 | #define F2FS_FEATURE_SB_CHKSUM 0x0800 | |
165 | #define F2FS_FEATURE_CASEFOLD 0x1000 | |
166 | #define F2FS_FEATURE_COMPRESSION 0x2000 | |
167 | ||
168 | #define __F2FS_HAS_FEATURE(raw_super, mask) \ | |
169 | ((raw_super->feature & cpu_to_le32(mask)) != 0) | |
170 | #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask) | |
171 | #define F2FS_SET_FEATURE(sbi, mask) \ | |
172 | (sbi->raw_super->feature |= cpu_to_le32(mask)) | |
173 | #define F2FS_CLEAR_FEATURE(sbi, mask) \ | |
174 | (sbi->raw_super->feature &= ~cpu_to_le32(mask)) | |
175 | ||
176 | /* | |
177 | * Default values for user and/or group using reserved blocks | |
178 | */ | |
179 | #define F2FS_DEF_RESUID 0 | |
180 | #define F2FS_DEF_RESGID 0 | |
181 | ||
182 | /* | |
183 | * For checkpoint manager | |
184 | */ | |
185 | enum { | |
186 | NAT_BITMAP, | |
187 | SIT_BITMAP | |
188 | }; | |
189 | ||
190 | #define CP_UMOUNT 0x00000001 | |
191 | #define CP_FASTBOOT 0x00000002 | |
192 | #define CP_SYNC 0x00000004 | |
193 | #define CP_RECOVERY 0x00000008 | |
194 | #define CP_DISCARD 0x00000010 | |
195 | #define CP_TRIMMED 0x00000020 | |
196 | #define CP_PAUSE 0x00000040 | |
197 | ||
198 | #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) | |
199 | #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */ | |
200 | #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */ | |
201 | #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */ | |
202 | #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */ | |
203 | #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */ | |
204 | #define DEF_CP_INTERVAL 60 /* 60 secs */ | |
205 | #define DEF_IDLE_INTERVAL 5 /* 5 secs */ | |
206 | #define DEF_DISABLE_INTERVAL 5 /* 5 secs */ | |
207 | #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */ | |
208 | #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */ | |
209 | ||
210 | struct cp_control { | |
211 | int reason; | |
212 | __u64 trim_start; | |
213 | __u64 trim_end; | |
214 | __u64 trim_minlen; | |
215 | }; | |
216 | ||
217 | /* | |
218 | * indicate meta/data type | |
219 | */ | |
220 | enum { | |
221 | META_CP, | |
222 | META_NAT, | |
223 | META_SIT, | |
224 | META_SSA, | |
225 | META_MAX, | |
226 | META_POR, | |
227 | DATA_GENERIC, /* check range only */ | |
228 | DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */ | |
229 | DATA_GENERIC_ENHANCE_READ, /* | |
230 | * strong check on range and segment | |
231 | * bitmap but no warning due to race | |
232 | * condition of read on truncated area | |
233 | * by extent_cache | |
234 | */ | |
235 | META_GENERIC, | |
236 | }; | |
237 | ||
238 | /* for the list of ino */ | |
239 | enum { | |
240 | ORPHAN_INO, /* for orphan ino list */ | |
241 | APPEND_INO, /* for append ino list */ | |
242 | UPDATE_INO, /* for update ino list */ | |
243 | TRANS_DIR_INO, /* for trasactions dir ino list */ | |
244 | FLUSH_INO, /* for multiple device flushing */ | |
245 | MAX_INO_ENTRY, /* max. list */ | |
246 | }; | |
247 | ||
248 | struct ino_entry { | |
249 | struct list_head list; /* list head */ | |
250 | nid_t ino; /* inode number */ | |
251 | unsigned int dirty_device; /* dirty device bitmap */ | |
252 | }; | |
253 | ||
254 | /* for the list of inodes to be GCed */ | |
255 | struct inode_entry { | |
256 | struct list_head list; /* list head */ | |
257 | struct inode *inode; /* vfs inode pointer */ | |
258 | }; | |
259 | ||
260 | struct fsync_node_entry { | |
261 | struct list_head list; /* list head */ | |
262 | struct page *page; /* warm node page pointer */ | |
263 | unsigned int seq_id; /* sequence id */ | |
264 | }; | |
265 | ||
266 | /* for the bitmap indicate blocks to be discarded */ | |
267 | struct discard_entry { | |
268 | struct list_head list; /* list head */ | |
269 | block_t start_blkaddr; /* start blockaddr of current segment */ | |
270 | unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ | |
271 | }; | |
272 | ||
273 | /* default discard granularity of inner discard thread, unit: block count */ | |
274 | #define DEFAULT_DISCARD_GRANULARITY 16 | |
275 | ||
276 | /* max discard pend list number */ | |
277 | #define MAX_PLIST_NUM 512 | |
278 | #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ | |
279 | (MAX_PLIST_NUM - 1) : ((blk_num) - 1)) | |
280 | ||
281 | enum { | |
282 | D_PREP, /* initial */ | |
283 | D_PARTIAL, /* partially submitted */ | |
284 | D_SUBMIT, /* all submitted */ | |
285 | D_DONE, /* finished */ | |
286 | }; | |
287 | ||
288 | struct discard_info { | |
289 | block_t lstart; /* logical start address */ | |
290 | block_t len; /* length */ | |
291 | block_t start; /* actual start address in dev */ | |
292 | }; | |
293 | ||
294 | struct discard_cmd { | |
295 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
296 | union { | |
297 | struct { | |
298 | block_t lstart; /* logical start address */ | |
299 | block_t len; /* length */ | |
300 | block_t start; /* actual start address in dev */ | |
301 | }; | |
302 | struct discard_info di; /* discard info */ | |
303 | ||
304 | }; | |
305 | struct list_head list; /* command list */ | |
306 | struct completion wait; /* compleation */ | |
307 | struct block_device *bdev; /* bdev */ | |
308 | unsigned short ref; /* reference count */ | |
309 | unsigned char state; /* state */ | |
310 | unsigned char queued; /* queued discard */ | |
311 | int error; /* bio error */ | |
312 | spinlock_t lock; /* for state/bio_ref updating */ | |
313 | unsigned short bio_ref; /* bio reference count */ | |
314 | }; | |
315 | ||
316 | enum { | |
317 | DPOLICY_BG, | |
318 | DPOLICY_FORCE, | |
319 | DPOLICY_FSTRIM, | |
320 | DPOLICY_UMOUNT, | |
321 | MAX_DPOLICY, | |
322 | }; | |
323 | ||
324 | struct discard_policy { | |
325 | int type; /* type of discard */ | |
326 | unsigned int min_interval; /* used for candidates exist */ | |
327 | unsigned int mid_interval; /* used for device busy */ | |
328 | unsigned int max_interval; /* used for candidates not exist */ | |
329 | unsigned int max_requests; /* # of discards issued per round */ | |
330 | unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ | |
331 | bool io_aware; /* issue discard in idle time */ | |
332 | bool sync; /* submit discard with REQ_SYNC flag */ | |
333 | bool ordered; /* issue discard by lba order */ | |
334 | bool timeout; /* discard timeout for put_super */ | |
335 | unsigned int granularity; /* discard granularity */ | |
336 | }; | |
337 | ||
338 | struct discard_cmd_control { | |
339 | struct task_struct *f2fs_issue_discard; /* discard thread */ | |
340 | struct list_head entry_list; /* 4KB discard entry list */ | |
341 | struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ | |
342 | struct list_head wait_list; /* store on-flushing entries */ | |
343 | struct list_head fstrim_list; /* in-flight discard from fstrim */ | |
344 | wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ | |
345 | unsigned int discard_wake; /* to wake up discard thread */ | |
346 | struct mutex cmd_lock; | |
347 | unsigned int nr_discards; /* # of discards in the list */ | |
348 | unsigned int max_discards; /* max. discards to be issued */ | |
349 | unsigned int discard_granularity; /* discard granularity */ | |
350 | unsigned int undiscard_blks; /* # of undiscard blocks */ | |
351 | unsigned int next_pos; /* next discard position */ | |
352 | atomic_t issued_discard; /* # of issued discard */ | |
353 | atomic_t queued_discard; /* # of queued discard */ | |
354 | atomic_t discard_cmd_cnt; /* # of cached cmd count */ | |
355 | struct rb_root_cached root; /* root of discard rb-tree */ | |
356 | bool rbtree_check; /* config for consistence check */ | |
357 | }; | |
358 | ||
359 | /* for the list of fsync inodes, used only during recovery */ | |
360 | struct fsync_inode_entry { | |
361 | struct list_head list; /* list head */ | |
362 | struct inode *inode; /* vfs inode pointer */ | |
363 | block_t blkaddr; /* block address locating the last fsync */ | |
364 | block_t last_dentry; /* block address locating the last dentry */ | |
365 | }; | |
366 | ||
367 | #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) | |
368 | #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) | |
369 | ||
370 | #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) | |
371 | #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) | |
372 | #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) | |
373 | #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) | |
374 | ||
375 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) | |
376 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) | |
377 | ||
378 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) | |
379 | { | |
380 | int before = nats_in_cursum(journal); | |
381 | ||
382 | journal->n_nats = cpu_to_le16(before + i); | |
383 | return before; | |
384 | } | |
385 | ||
386 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) | |
387 | { | |
388 | int before = sits_in_cursum(journal); | |
389 | ||
390 | journal->n_sits = cpu_to_le16(before + i); | |
391 | return before; | |
392 | } | |
393 | ||
394 | static inline bool __has_cursum_space(struct f2fs_journal *journal, | |
395 | int size, int type) | |
396 | { | |
397 | if (type == NAT_JOURNAL) | |
398 | return size <= MAX_NAT_JENTRIES(journal); | |
399 | return size <= MAX_SIT_JENTRIES(journal); | |
400 | } | |
401 | ||
402 | /* | |
403 | * ioctl commands | |
404 | */ | |
405 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS | |
406 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
407 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION | |
408 | ||
409 | #define F2FS_IOCTL_MAGIC 0xf5 | |
410 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
411 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
412 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) | |
413 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) | |
414 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
415 | #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32) | |
416 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) | |
417 | #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \ | |
418 | struct f2fs_defragment) | |
419 | #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ | |
420 | struct f2fs_move_range) | |
421 | #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \ | |
422 | struct f2fs_flush_device) | |
423 | #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \ | |
424 | struct f2fs_gc_range) | |
425 | #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32) | |
426 | #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32) | |
427 | #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32) | |
428 | #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15) | |
429 | #define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64) | |
430 | #define F2FS_IOC_GET_COMPRESS_BLOCKS _IOR(F2FS_IOCTL_MAGIC, 17, __u64) | |
431 | ||
432 | #define F2FS_IOC_GET_VOLUME_NAME FS_IOC_GETFSLABEL | |
433 | #define F2FS_IOC_SET_VOLUME_NAME FS_IOC_SETFSLABEL | |
434 | ||
435 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY | |
436 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY | |
437 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT | |
438 | ||
439 | /* | |
440 | * should be same as XFS_IOC_GOINGDOWN. | |
441 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
442 | */ | |
443 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
444 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
445 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
446 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
447 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ | |
448 | #define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */ | |
449 | ||
450 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) | |
451 | /* | |
452 | * ioctl commands in 32 bit emulation | |
453 | */ | |
454 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS | |
455 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
456 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION | |
457 | #endif | |
458 | ||
459 | #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR | |
460 | #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR | |
461 | ||
462 | struct f2fs_gc_range { | |
463 | u32 sync; | |
464 | u64 start; | |
465 | u64 len; | |
466 | }; | |
467 | ||
468 | struct f2fs_defragment { | |
469 | u64 start; | |
470 | u64 len; | |
471 | }; | |
472 | ||
473 | struct f2fs_move_range { | |
474 | u32 dst_fd; /* destination fd */ | |
475 | u64 pos_in; /* start position in src_fd */ | |
476 | u64 pos_out; /* start position in dst_fd */ | |
477 | u64 len; /* size to move */ | |
478 | }; | |
479 | ||
480 | struct f2fs_flush_device { | |
481 | u32 dev_num; /* device number to flush */ | |
482 | u32 segments; /* # of segments to flush */ | |
483 | }; | |
484 | ||
485 | /* for inline stuff */ | |
486 | #define DEF_INLINE_RESERVED_SIZE 1 | |
487 | static inline int get_extra_isize(struct inode *inode); | |
488 | static inline int get_inline_xattr_addrs(struct inode *inode); | |
489 | #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ | |
490 | (CUR_ADDRS_PER_INODE(inode) - \ | |
491 | get_inline_xattr_addrs(inode) - \ | |
492 | DEF_INLINE_RESERVED_SIZE)) | |
493 | ||
494 | /* for inline dir */ | |
495 | #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ | |
496 | ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ | |
497 | BITS_PER_BYTE + 1)) | |
498 | #define INLINE_DENTRY_BITMAP_SIZE(inode) \ | |
499 | DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE) | |
500 | #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ | |
501 | ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ | |
502 | NR_INLINE_DENTRY(inode) + \ | |
503 | INLINE_DENTRY_BITMAP_SIZE(inode))) | |
504 | ||
505 | /* | |
506 | * For INODE and NODE manager | |
507 | */ | |
508 | /* for directory operations */ | |
509 | struct f2fs_dentry_ptr { | |
510 | struct inode *inode; | |
511 | void *bitmap; | |
512 | struct f2fs_dir_entry *dentry; | |
513 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
514 | int max; | |
515 | int nr_bitmap; | |
516 | }; | |
517 | ||
518 | static inline void make_dentry_ptr_block(struct inode *inode, | |
519 | struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) | |
520 | { | |
521 | d->inode = inode; | |
522 | d->max = NR_DENTRY_IN_BLOCK; | |
523 | d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; | |
524 | d->bitmap = t->dentry_bitmap; | |
525 | d->dentry = t->dentry; | |
526 | d->filename = t->filename; | |
527 | } | |
528 | ||
529 | static inline void make_dentry_ptr_inline(struct inode *inode, | |
530 | struct f2fs_dentry_ptr *d, void *t) | |
531 | { | |
532 | int entry_cnt = NR_INLINE_DENTRY(inode); | |
533 | int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); | |
534 | int reserved_size = INLINE_RESERVED_SIZE(inode); | |
535 | ||
536 | d->inode = inode; | |
537 | d->max = entry_cnt; | |
538 | d->nr_bitmap = bitmap_size; | |
539 | d->bitmap = t; | |
540 | d->dentry = t + bitmap_size + reserved_size; | |
541 | d->filename = t + bitmap_size + reserved_size + | |
542 | SIZE_OF_DIR_ENTRY * entry_cnt; | |
543 | } | |
544 | ||
545 | /* | |
546 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
547 | * as its node offset to distinguish from index node blocks. | |
548 | * But some bits are used to mark the node block. | |
549 | */ | |
550 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
551 | >> OFFSET_BIT_SHIFT) | |
552 | enum { | |
553 | ALLOC_NODE, /* allocate a new node page if needed */ | |
554 | LOOKUP_NODE, /* look up a node without readahead */ | |
555 | LOOKUP_NODE_RA, /* | |
556 | * look up a node with readahead called | |
557 | * by get_data_block. | |
558 | */ | |
559 | }; | |
560 | ||
561 | #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ | |
562 | ||
563 | /* congestion wait timeout value, default: 20ms */ | |
564 | #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20)) | |
565 | ||
566 | /* maximum retry quota flush count */ | |
567 | #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 | |
568 | ||
569 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ | |
570 | ||
571 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ | |
572 | ||
573 | /* for in-memory extent cache entry */ | |
574 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ | |
575 | ||
576 | /* number of extent info in extent cache we try to shrink */ | |
577 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
578 | ||
579 | struct rb_entry { | |
580 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
581 | unsigned int ofs; /* start offset of the entry */ | |
582 | unsigned int len; /* length of the entry */ | |
583 | }; | |
584 | ||
585 | struct extent_info { | |
586 | unsigned int fofs; /* start offset in a file */ | |
587 | unsigned int len; /* length of the extent */ | |
588 | u32 blk; /* start block address of the extent */ | |
589 | }; | |
590 | ||
591 | struct extent_node { | |
592 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
593 | struct extent_info ei; /* extent info */ | |
594 | struct list_head list; /* node in global extent list of sbi */ | |
595 | struct extent_tree *et; /* extent tree pointer */ | |
596 | }; | |
597 | ||
598 | struct extent_tree { | |
599 | nid_t ino; /* inode number */ | |
600 | struct rb_root_cached root; /* root of extent info rb-tree */ | |
601 | struct extent_node *cached_en; /* recently accessed extent node */ | |
602 | struct extent_info largest; /* largested extent info */ | |
603 | struct list_head list; /* to be used by sbi->zombie_list */ | |
604 | rwlock_t lock; /* protect extent info rb-tree */ | |
605 | atomic_t node_cnt; /* # of extent node in rb-tree*/ | |
606 | bool largest_updated; /* largest extent updated */ | |
607 | }; | |
608 | ||
609 | /* | |
610 | * This structure is taken from ext4_map_blocks. | |
611 | * | |
612 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
613 | */ | |
614 | #define F2FS_MAP_NEW (1 << BH_New) | |
615 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
616 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) | |
617 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
618 | F2FS_MAP_UNWRITTEN) | |
619 | ||
620 | struct f2fs_map_blocks { | |
621 | block_t m_pblk; | |
622 | block_t m_lblk; | |
623 | unsigned int m_len; | |
624 | unsigned int m_flags; | |
625 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ | |
626 | pgoff_t *m_next_extent; /* point to next possible extent */ | |
627 | int m_seg_type; | |
628 | bool m_may_create; /* indicate it is from write path */ | |
629 | }; | |
630 | ||
631 | /* for flag in get_data_block */ | |
632 | enum { | |
633 | F2FS_GET_BLOCK_DEFAULT, | |
634 | F2FS_GET_BLOCK_FIEMAP, | |
635 | F2FS_GET_BLOCK_BMAP, | |
636 | F2FS_GET_BLOCK_DIO, | |
637 | F2FS_GET_BLOCK_PRE_DIO, | |
638 | F2FS_GET_BLOCK_PRE_AIO, | |
639 | F2FS_GET_BLOCK_PRECACHE, | |
640 | }; | |
641 | ||
642 | /* | |
643 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
644 | */ | |
645 | #define FADVISE_COLD_BIT 0x01 | |
646 | #define FADVISE_LOST_PINO_BIT 0x02 | |
647 | #define FADVISE_ENCRYPT_BIT 0x04 | |
648 | #define FADVISE_ENC_NAME_BIT 0x08 | |
649 | #define FADVISE_KEEP_SIZE_BIT 0x10 | |
650 | #define FADVISE_HOT_BIT 0x20 | |
651 | #define FADVISE_VERITY_BIT 0x40 | |
652 | ||
653 | #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) | |
654 | ||
655 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) | |
656 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
657 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
658 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
659 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
660 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
661 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) | |
662 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
663 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
664 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) | |
665 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
666 | #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) | |
667 | #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) | |
668 | #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) | |
669 | #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) | |
670 | #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) | |
671 | #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT) | |
672 | #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT) | |
673 | ||
674 | #define DEF_DIR_LEVEL 0 | |
675 | ||
676 | enum { | |
677 | GC_FAILURE_PIN, | |
678 | GC_FAILURE_ATOMIC, | |
679 | MAX_GC_FAILURE | |
680 | }; | |
681 | ||
682 | /* used for f2fs_inode_info->flags */ | |
683 | enum { | |
684 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
685 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ | |
686 | FI_AUTO_RECOVER, /* indicate inode is recoverable */ | |
687 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ | |
688 | FI_INC_LINK, /* need to increment i_nlink */ | |
689 | FI_ACL_MODE, /* indicate acl mode */ | |
690 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
691 | FI_FREE_NID, /* free allocated nide */ | |
692 | FI_NO_EXTENT, /* not to use the extent cache */ | |
693 | FI_INLINE_XATTR, /* used for inline xattr */ | |
694 | FI_INLINE_DATA, /* used for inline data*/ | |
695 | FI_INLINE_DENTRY, /* used for inline dentry */ | |
696 | FI_APPEND_WRITE, /* inode has appended data */ | |
697 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
698 | FI_NEED_IPU, /* used for ipu per file */ | |
699 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
700 | FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ | |
701 | FI_VOLATILE_FILE, /* indicate volatile file */ | |
702 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ | |
703 | FI_DROP_CACHE, /* drop dirty page cache */ | |
704 | FI_DATA_EXIST, /* indicate data exists */ | |
705 | FI_INLINE_DOTS, /* indicate inline dot dentries */ | |
706 | FI_DO_DEFRAG, /* indicate defragment is running */ | |
707 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ | |
708 | FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ | |
709 | FI_HOT_DATA, /* indicate file is hot */ | |
710 | FI_EXTRA_ATTR, /* indicate file has extra attribute */ | |
711 | FI_PROJ_INHERIT, /* indicate file inherits projectid */ | |
712 | FI_PIN_FILE, /* indicate file should not be gced */ | |
713 | FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ | |
714 | FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */ | |
715 | FI_COMPRESSED_FILE, /* indicate file's data can be compressed */ | |
716 | FI_MMAP_FILE, /* indicate file was mmapped */ | |
717 | FI_MAX, /* max flag, never be used */ | |
718 | }; | |
719 | ||
720 | struct f2fs_inode_info { | |
721 | struct inode vfs_inode; /* serve a vfs inode */ | |
722 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
723 | unsigned char i_advise; /* use to give file attribute hints */ | |
724 | unsigned char i_dir_level; /* use for dentry level for large dir */ | |
725 | unsigned int i_current_depth; /* only for directory depth */ | |
726 | /* for gc failure statistic */ | |
727 | unsigned int i_gc_failures[MAX_GC_FAILURE]; | |
728 | unsigned int i_pino; /* parent inode number */ | |
729 | umode_t i_acl_mode; /* keep file acl mode temporarily */ | |
730 | ||
731 | /* Use below internally in f2fs*/ | |
732 | unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */ | |
733 | struct rw_semaphore i_sem; /* protect fi info */ | |
734 | atomic_t dirty_pages; /* # of dirty pages */ | |
735 | f2fs_hash_t chash; /* hash value of given file name */ | |
736 | unsigned int clevel; /* maximum level of given file name */ | |
737 | struct task_struct *task; /* lookup and create consistency */ | |
738 | struct task_struct *cp_task; /* separate cp/wb IO stats*/ | |
739 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
740 | loff_t last_disk_size; /* lastly written file size */ | |
741 | spinlock_t i_size_lock; /* protect last_disk_size */ | |
742 | ||
743 | #ifdef CONFIG_QUOTA | |
744 | struct dquot *i_dquot[MAXQUOTAS]; | |
745 | ||
746 | /* quota space reservation, managed internally by quota code */ | |
747 | qsize_t i_reserved_quota; | |
748 | #endif | |
749 | struct list_head dirty_list; /* dirty list for dirs and files */ | |
750 | struct list_head gdirty_list; /* linked in global dirty list */ | |
751 | struct list_head inmem_ilist; /* list for inmem inodes */ | |
752 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ | |
753 | struct task_struct *inmem_task; /* store inmemory task */ | |
754 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
755 | struct extent_tree *extent_tree; /* cached extent_tree entry */ | |
756 | ||
757 | /* avoid racing between foreground op and gc */ | |
758 | struct rw_semaphore i_gc_rwsem[2]; | |
759 | struct rw_semaphore i_mmap_sem; | |
760 | struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ | |
761 | ||
762 | int i_extra_isize; /* size of extra space located in i_addr */ | |
763 | kprojid_t i_projid; /* id for project quota */ | |
764 | int i_inline_xattr_size; /* inline xattr size */ | |
765 | struct timespec64 i_crtime; /* inode creation time */ | |
766 | struct timespec64 i_disk_time[4];/* inode disk times */ | |
767 | ||
768 | /* for file compress */ | |
769 | u64 i_compr_blocks; /* # of compressed blocks */ | |
770 | unsigned char i_compress_algorithm; /* algorithm type */ | |
771 | unsigned char i_log_cluster_size; /* log of cluster size */ | |
772 | unsigned int i_cluster_size; /* cluster size */ | |
773 | }; | |
774 | ||
775 | static inline void get_extent_info(struct extent_info *ext, | |
776 | struct f2fs_extent *i_ext) | |
777 | { | |
778 | ext->fofs = le32_to_cpu(i_ext->fofs); | |
779 | ext->blk = le32_to_cpu(i_ext->blk); | |
780 | ext->len = le32_to_cpu(i_ext->len); | |
781 | } | |
782 | ||
783 | static inline void set_raw_extent(struct extent_info *ext, | |
784 | struct f2fs_extent *i_ext) | |
785 | { | |
786 | i_ext->fofs = cpu_to_le32(ext->fofs); | |
787 | i_ext->blk = cpu_to_le32(ext->blk); | |
788 | i_ext->len = cpu_to_le32(ext->len); | |
789 | } | |
790 | ||
791 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, | |
792 | u32 blk, unsigned int len) | |
793 | { | |
794 | ei->fofs = fofs; | |
795 | ei->blk = blk; | |
796 | ei->len = len; | |
797 | } | |
798 | ||
799 | static inline bool __is_discard_mergeable(struct discard_info *back, | |
800 | struct discard_info *front, unsigned int max_len) | |
801 | { | |
802 | return (back->lstart + back->len == front->lstart) && | |
803 | (back->len + front->len <= max_len); | |
804 | } | |
805 | ||
806 | static inline bool __is_discard_back_mergeable(struct discard_info *cur, | |
807 | struct discard_info *back, unsigned int max_len) | |
808 | { | |
809 | return __is_discard_mergeable(back, cur, max_len); | |
810 | } | |
811 | ||
812 | static inline bool __is_discard_front_mergeable(struct discard_info *cur, | |
813 | struct discard_info *front, unsigned int max_len) | |
814 | { | |
815 | return __is_discard_mergeable(cur, front, max_len); | |
816 | } | |
817 | ||
818 | static inline bool __is_extent_mergeable(struct extent_info *back, | |
819 | struct extent_info *front) | |
820 | { | |
821 | return (back->fofs + back->len == front->fofs && | |
822 | back->blk + back->len == front->blk); | |
823 | } | |
824 | ||
825 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
826 | struct extent_info *back) | |
827 | { | |
828 | return __is_extent_mergeable(back, cur); | |
829 | } | |
830 | ||
831 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
832 | struct extent_info *front) | |
833 | { | |
834 | return __is_extent_mergeable(cur, front); | |
835 | } | |
836 | ||
837 | extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); | |
838 | static inline void __try_update_largest_extent(struct extent_tree *et, | |
839 | struct extent_node *en) | |
840 | { | |
841 | if (en->ei.len > et->largest.len) { | |
842 | et->largest = en->ei; | |
843 | et->largest_updated = true; | |
844 | } | |
845 | } | |
846 | ||
847 | /* | |
848 | * For free nid management | |
849 | */ | |
850 | enum nid_state { | |
851 | FREE_NID, /* newly added to free nid list */ | |
852 | PREALLOC_NID, /* it is preallocated */ | |
853 | MAX_NID_STATE, | |
854 | }; | |
855 | ||
856 | struct f2fs_nm_info { | |
857 | block_t nat_blkaddr; /* base disk address of NAT */ | |
858 | nid_t max_nid; /* maximum possible node ids */ | |
859 | nid_t available_nids; /* # of available node ids */ | |
860 | nid_t next_scan_nid; /* the next nid to be scanned */ | |
861 | unsigned int ram_thresh; /* control the memory footprint */ | |
862 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ | |
863 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ | |
864 | ||
865 | /* NAT cache management */ | |
866 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
867 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ | |
868 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ | |
869 | struct list_head nat_entries; /* cached nat entry list (clean) */ | |
870 | spinlock_t nat_list_lock; /* protect clean nat entry list */ | |
871 | unsigned int nat_cnt; /* the # of cached nat entries */ | |
872 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ | |
873 | unsigned int nat_blocks; /* # of nat blocks */ | |
874 | ||
875 | /* free node ids management */ | |
876 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ | |
877 | struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ | |
878 | unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ | |
879 | spinlock_t nid_list_lock; /* protect nid lists ops */ | |
880 | struct mutex build_lock; /* lock for build free nids */ | |
881 | unsigned char **free_nid_bitmap; | |
882 | unsigned char *nat_block_bitmap; | |
883 | unsigned short *free_nid_count; /* free nid count of NAT block */ | |
884 | ||
885 | /* for checkpoint */ | |
886 | char *nat_bitmap; /* NAT bitmap pointer */ | |
887 | ||
888 | unsigned int nat_bits_blocks; /* # of nat bits blocks */ | |
889 | unsigned char *nat_bits; /* NAT bits blocks */ | |
890 | unsigned char *full_nat_bits; /* full NAT pages */ | |
891 | unsigned char *empty_nat_bits; /* empty NAT pages */ | |
892 | #ifdef CONFIG_F2FS_CHECK_FS | |
893 | char *nat_bitmap_mir; /* NAT bitmap mirror */ | |
894 | #endif | |
895 | int bitmap_size; /* bitmap size */ | |
896 | }; | |
897 | ||
898 | /* | |
899 | * this structure is used as one of function parameters. | |
900 | * all the information are dedicated to a given direct node block determined | |
901 | * by the data offset in a file. | |
902 | */ | |
903 | struct dnode_of_data { | |
904 | struct inode *inode; /* vfs inode pointer */ | |
905 | struct page *inode_page; /* its inode page, NULL is possible */ | |
906 | struct page *node_page; /* cached direct node page */ | |
907 | nid_t nid; /* node id of the direct node block */ | |
908 | unsigned int ofs_in_node; /* data offset in the node page */ | |
909 | bool inode_page_locked; /* inode page is locked or not */ | |
910 | bool node_changed; /* is node block changed */ | |
911 | char cur_level; /* level of hole node page */ | |
912 | char max_level; /* level of current page located */ | |
913 | block_t data_blkaddr; /* block address of the node block */ | |
914 | }; | |
915 | ||
916 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
917 | struct page *ipage, struct page *npage, nid_t nid) | |
918 | { | |
919 | memset(dn, 0, sizeof(*dn)); | |
920 | dn->inode = inode; | |
921 | dn->inode_page = ipage; | |
922 | dn->node_page = npage; | |
923 | dn->nid = nid; | |
924 | } | |
925 | ||
926 | /* | |
927 | * For SIT manager | |
928 | * | |
929 | * By default, there are 6 active log areas across the whole main area. | |
930 | * When considering hot and cold data separation to reduce cleaning overhead, | |
931 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
932 | * respectively. | |
933 | * In the current design, you should not change the numbers intentionally. | |
934 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
935 | * logs individually according to the underlying devices. (default: 6) | |
936 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
937 | * data and 8 for node logs. | |
938 | */ | |
939 | #define NR_CURSEG_DATA_TYPE (3) | |
940 | #define NR_CURSEG_NODE_TYPE (3) | |
941 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
942 | ||
943 | enum { | |
944 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
945 | CURSEG_WARM_DATA, /* data blocks */ | |
946 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
947 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
948 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
949 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
950 | NO_CHECK_TYPE, | |
951 | CURSEG_COLD_DATA_PINNED,/* cold data for pinned file */ | |
952 | }; | |
953 | ||
954 | struct flush_cmd { | |
955 | struct completion wait; | |
956 | struct llist_node llnode; | |
957 | nid_t ino; | |
958 | int ret; | |
959 | }; | |
960 | ||
961 | struct flush_cmd_control { | |
962 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
963 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
964 | atomic_t issued_flush; /* # of issued flushes */ | |
965 | atomic_t queued_flush; /* # of queued flushes */ | |
966 | struct llist_head issue_list; /* list for command issue */ | |
967 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
968 | }; | |
969 | ||
970 | struct f2fs_sm_info { | |
971 | struct sit_info *sit_info; /* whole segment information */ | |
972 | struct free_segmap_info *free_info; /* free segment information */ | |
973 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
974 | struct curseg_info *curseg_array; /* active segment information */ | |
975 | ||
976 | struct rw_semaphore curseg_lock; /* for preventing curseg change */ | |
977 | ||
978 | block_t seg0_blkaddr; /* block address of 0'th segment */ | |
979 | block_t main_blkaddr; /* start block address of main area */ | |
980 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
981 | ||
982 | unsigned int segment_count; /* total # of segments */ | |
983 | unsigned int main_segments; /* # of segments in main area */ | |
984 | unsigned int reserved_segments; /* # of reserved segments */ | |
985 | unsigned int ovp_segments; /* # of overprovision segments */ | |
986 | ||
987 | /* a threshold to reclaim prefree segments */ | |
988 | unsigned int rec_prefree_segments; | |
989 | ||
990 | /* for batched trimming */ | |
991 | unsigned int trim_sections; /* # of sections to trim */ | |
992 | ||
993 | struct list_head sit_entry_set; /* sit entry set list */ | |
994 | ||
995 | unsigned int ipu_policy; /* in-place-update policy */ | |
996 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
997 | unsigned int min_fsync_blocks; /* threshold for fsync */ | |
998 | unsigned int min_seq_blocks; /* threshold for sequential blocks */ | |
999 | unsigned int min_hot_blocks; /* threshold for hot block allocation */ | |
1000 | unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ | |
1001 | ||
1002 | /* for flush command control */ | |
1003 | struct flush_cmd_control *fcc_info; | |
1004 | ||
1005 | /* for discard command control */ | |
1006 | struct discard_cmd_control *dcc_info; | |
1007 | }; | |
1008 | ||
1009 | /* | |
1010 | * For superblock | |
1011 | */ | |
1012 | /* | |
1013 | * COUNT_TYPE for monitoring | |
1014 | * | |
1015 | * f2fs monitors the number of several block types such as on-writeback, | |
1016 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
1017 | */ | |
1018 | #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) | |
1019 | enum count_type { | |
1020 | F2FS_DIRTY_DENTS, | |
1021 | F2FS_DIRTY_DATA, | |
1022 | F2FS_DIRTY_QDATA, | |
1023 | F2FS_DIRTY_NODES, | |
1024 | F2FS_DIRTY_META, | |
1025 | F2FS_INMEM_PAGES, | |
1026 | F2FS_DIRTY_IMETA, | |
1027 | F2FS_WB_CP_DATA, | |
1028 | F2FS_WB_DATA, | |
1029 | F2FS_RD_DATA, | |
1030 | F2FS_RD_NODE, | |
1031 | F2FS_RD_META, | |
1032 | F2FS_DIO_WRITE, | |
1033 | F2FS_DIO_READ, | |
1034 | NR_COUNT_TYPE, | |
1035 | }; | |
1036 | ||
1037 | /* | |
1038 | * The below are the page types of bios used in submit_bio(). | |
1039 | * The available types are: | |
1040 | * DATA User data pages. It operates as async mode. | |
1041 | * NODE Node pages. It operates as async mode. | |
1042 | * META FS metadata pages such as SIT, NAT, CP. | |
1043 | * NR_PAGE_TYPE The number of page types. | |
1044 | * META_FLUSH Make sure the previous pages are written | |
1045 | * with waiting the bio's completion | |
1046 | * ... Only can be used with META. | |
1047 | */ | |
1048 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) | |
1049 | enum page_type { | |
1050 | DATA, | |
1051 | NODE, | |
1052 | META, | |
1053 | NR_PAGE_TYPE, | |
1054 | META_FLUSH, | |
1055 | INMEM, /* the below types are used by tracepoints only. */ | |
1056 | INMEM_DROP, | |
1057 | INMEM_INVALIDATE, | |
1058 | INMEM_REVOKE, | |
1059 | IPU, | |
1060 | OPU, | |
1061 | }; | |
1062 | ||
1063 | enum temp_type { | |
1064 | HOT = 0, /* must be zero for meta bio */ | |
1065 | WARM, | |
1066 | COLD, | |
1067 | NR_TEMP_TYPE, | |
1068 | }; | |
1069 | ||
1070 | enum need_lock_type { | |
1071 | LOCK_REQ = 0, | |
1072 | LOCK_DONE, | |
1073 | LOCK_RETRY, | |
1074 | }; | |
1075 | ||
1076 | enum cp_reason_type { | |
1077 | CP_NO_NEEDED, | |
1078 | CP_NON_REGULAR, | |
1079 | CP_COMPRESSED, | |
1080 | CP_HARDLINK, | |
1081 | CP_SB_NEED_CP, | |
1082 | CP_WRONG_PINO, | |
1083 | CP_NO_SPC_ROLL, | |
1084 | CP_NODE_NEED_CP, | |
1085 | CP_FASTBOOT_MODE, | |
1086 | CP_SPEC_LOG_NUM, | |
1087 | CP_RECOVER_DIR, | |
1088 | }; | |
1089 | ||
1090 | enum iostat_type { | |
1091 | APP_DIRECT_IO, /* app direct IOs */ | |
1092 | APP_BUFFERED_IO, /* app buffered IOs */ | |
1093 | APP_WRITE_IO, /* app write IOs */ | |
1094 | APP_MAPPED_IO, /* app mapped IOs */ | |
1095 | FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ | |
1096 | FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ | |
1097 | FS_META_IO, /* meta IOs from kworker/reclaimer */ | |
1098 | FS_GC_DATA_IO, /* data IOs from forground gc */ | |
1099 | FS_GC_NODE_IO, /* node IOs from forground gc */ | |
1100 | FS_CP_DATA_IO, /* data IOs from checkpoint */ | |
1101 | FS_CP_NODE_IO, /* node IOs from checkpoint */ | |
1102 | FS_CP_META_IO, /* meta IOs from checkpoint */ | |
1103 | FS_DISCARD, /* discard */ | |
1104 | NR_IO_TYPE, | |
1105 | }; | |
1106 | ||
1107 | struct f2fs_io_info { | |
1108 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ | |
1109 | nid_t ino; /* inode number */ | |
1110 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ | |
1111 | enum temp_type temp; /* contains HOT/WARM/COLD */ | |
1112 | int op; /* contains REQ_OP_ */ | |
1113 | int op_flags; /* req_flag_bits */ | |
1114 | block_t new_blkaddr; /* new block address to be written */ | |
1115 | block_t old_blkaddr; /* old block address before Cow */ | |
1116 | struct page *page; /* page to be written */ | |
1117 | struct page *encrypted_page; /* encrypted page */ | |
1118 | struct page *compressed_page; /* compressed page */ | |
1119 | struct list_head list; /* serialize IOs */ | |
1120 | bool submitted; /* indicate IO submission */ | |
1121 | int need_lock; /* indicate we need to lock cp_rwsem */ | |
1122 | bool in_list; /* indicate fio is in io_list */ | |
1123 | bool is_por; /* indicate IO is from recovery or not */ | |
1124 | bool retry; /* need to reallocate block address */ | |
1125 | int compr_blocks; /* # of compressed block addresses */ | |
1126 | bool encrypted; /* indicate file is encrypted */ | |
1127 | enum iostat_type io_type; /* io type */ | |
1128 | struct writeback_control *io_wbc; /* writeback control */ | |
1129 | struct bio **bio; /* bio for ipu */ | |
1130 | sector_t *last_block; /* last block number in bio */ | |
1131 | unsigned char version; /* version of the node */ | |
1132 | }; | |
1133 | ||
1134 | struct bio_entry { | |
1135 | struct bio *bio; | |
1136 | struct list_head list; | |
1137 | }; | |
1138 | ||
1139 | #define is_read_io(rw) ((rw) == READ) | |
1140 | struct f2fs_bio_info { | |
1141 | struct f2fs_sb_info *sbi; /* f2fs superblock */ | |
1142 | struct bio *bio; /* bios to merge */ | |
1143 | sector_t last_block_in_bio; /* last block number */ | |
1144 | struct f2fs_io_info fio; /* store buffered io info. */ | |
1145 | struct rw_semaphore io_rwsem; /* blocking op for bio */ | |
1146 | spinlock_t io_lock; /* serialize DATA/NODE IOs */ | |
1147 | struct list_head io_list; /* track fios */ | |
1148 | struct list_head bio_list; /* bio entry list head */ | |
1149 | struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */ | |
1150 | }; | |
1151 | ||
1152 | #define FDEV(i) (sbi->devs[i]) | |
1153 | #define RDEV(i) (raw_super->devs[i]) | |
1154 | struct f2fs_dev_info { | |
1155 | struct block_device *bdev; | |
1156 | char path[MAX_PATH_LEN]; | |
1157 | unsigned int total_segments; | |
1158 | block_t start_blk; | |
1159 | block_t end_blk; | |
1160 | #ifdef CONFIG_BLK_DEV_ZONED | |
1161 | unsigned int nr_blkz; /* Total number of zones */ | |
1162 | unsigned long *blkz_seq; /* Bitmap indicating sequential zones */ | |
1163 | #endif | |
1164 | }; | |
1165 | ||
1166 | enum inode_type { | |
1167 | DIR_INODE, /* for dirty dir inode */ | |
1168 | FILE_INODE, /* for dirty regular/symlink inode */ | |
1169 | DIRTY_META, /* for all dirtied inode metadata */ | |
1170 | ATOMIC_FILE, /* for all atomic files */ | |
1171 | NR_INODE_TYPE, | |
1172 | }; | |
1173 | ||
1174 | /* for inner inode cache management */ | |
1175 | struct inode_management { | |
1176 | struct radix_tree_root ino_root; /* ino entry array */ | |
1177 | spinlock_t ino_lock; /* for ino entry lock */ | |
1178 | struct list_head ino_list; /* inode list head */ | |
1179 | unsigned long ino_num; /* number of entries */ | |
1180 | }; | |
1181 | ||
1182 | /* For s_flag in struct f2fs_sb_info */ | |
1183 | enum { | |
1184 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
1185 | SBI_IS_CLOSE, /* specify unmounting */ | |
1186 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
1187 | SBI_POR_DOING, /* recovery is doing or not */ | |
1188 | SBI_NEED_SB_WRITE, /* need to recover superblock */ | |
1189 | SBI_NEED_CP, /* need to checkpoint */ | |
1190 | SBI_IS_SHUTDOWN, /* shutdown by ioctl */ | |
1191 | SBI_IS_RECOVERED, /* recovered orphan/data */ | |
1192 | SBI_CP_DISABLED, /* CP was disabled last mount */ | |
1193 | SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */ | |
1194 | SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ | |
1195 | SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ | |
1196 | SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ | |
1197 | SBI_IS_RESIZEFS, /* resizefs is in process */ | |
1198 | }; | |
1199 | ||
1200 | enum { | |
1201 | CP_TIME, | |
1202 | REQ_TIME, | |
1203 | DISCARD_TIME, | |
1204 | GC_TIME, | |
1205 | DISABLE_TIME, | |
1206 | UMOUNT_DISCARD_TIMEOUT, | |
1207 | MAX_TIME, | |
1208 | }; | |
1209 | ||
1210 | enum { | |
1211 | GC_NORMAL, | |
1212 | GC_IDLE_CB, | |
1213 | GC_IDLE_GREEDY, | |
1214 | GC_URGENT, | |
1215 | }; | |
1216 | ||
1217 | enum { | |
1218 | BGGC_MODE_ON, /* background gc is on */ | |
1219 | BGGC_MODE_OFF, /* background gc is off */ | |
1220 | BGGC_MODE_SYNC, /* | |
1221 | * background gc is on, migrating blocks | |
1222 | * like foreground gc | |
1223 | */ | |
1224 | }; | |
1225 | ||
1226 | enum { | |
1227 | FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */ | |
1228 | FS_MODE_LFS, /* use lfs allocation only */ | |
1229 | }; | |
1230 | ||
1231 | enum { | |
1232 | WHINT_MODE_OFF, /* not pass down write hints */ | |
1233 | WHINT_MODE_USER, /* try to pass down hints given by users */ | |
1234 | WHINT_MODE_FS, /* pass down hints with F2FS policy */ | |
1235 | }; | |
1236 | ||
1237 | enum { | |
1238 | ALLOC_MODE_DEFAULT, /* stay default */ | |
1239 | ALLOC_MODE_REUSE, /* reuse segments as much as possible */ | |
1240 | }; | |
1241 | ||
1242 | enum fsync_mode { | |
1243 | FSYNC_MODE_POSIX, /* fsync follows posix semantics */ | |
1244 | FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ | |
1245 | FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ | |
1246 | }; | |
1247 | ||
1248 | /* | |
1249 | * this value is set in page as a private data which indicate that | |
1250 | * the page is atomically written, and it is in inmem_pages list. | |
1251 | */ | |
1252 | #define ATOMIC_WRITTEN_PAGE ((unsigned long)-1) | |
1253 | #define DUMMY_WRITTEN_PAGE ((unsigned long)-2) | |
1254 | ||
1255 | #define IS_ATOMIC_WRITTEN_PAGE(page) \ | |
1256 | (page_private(page) == (unsigned long)ATOMIC_WRITTEN_PAGE) | |
1257 | #define IS_DUMMY_WRITTEN_PAGE(page) \ | |
1258 | (page_private(page) == (unsigned long)DUMMY_WRITTEN_PAGE) | |
1259 | ||
1260 | #ifdef CONFIG_FS_ENCRYPTION | |
1261 | #define DUMMY_ENCRYPTION_ENABLED(sbi) \ | |
1262 | (unlikely(F2FS_OPTION(sbi).test_dummy_encryption)) | |
1263 | #else | |
1264 | #define DUMMY_ENCRYPTION_ENABLED(sbi) (0) | |
1265 | #endif | |
1266 | ||
1267 | /* For compression */ | |
1268 | enum compress_algorithm_type { | |
1269 | COMPRESS_LZO, | |
1270 | COMPRESS_LZ4, | |
1271 | COMPRESS_ZSTD, | |
1272 | COMPRESS_MAX, | |
1273 | }; | |
1274 | ||
1275 | #define COMPRESS_DATA_RESERVED_SIZE 5 | |
1276 | struct compress_data { | |
1277 | __le32 clen; /* compressed data size */ | |
1278 | __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */ | |
1279 | u8 cdata[]; /* compressed data */ | |
1280 | }; | |
1281 | ||
1282 | #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data)) | |
1283 | ||
1284 | #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000 | |
1285 | ||
1286 | /* compress context */ | |
1287 | struct compress_ctx { | |
1288 | struct inode *inode; /* inode the context belong to */ | |
1289 | pgoff_t cluster_idx; /* cluster index number */ | |
1290 | unsigned int cluster_size; /* page count in cluster */ | |
1291 | unsigned int log_cluster_size; /* log of cluster size */ | |
1292 | struct page **rpages; /* pages store raw data in cluster */ | |
1293 | unsigned int nr_rpages; /* total page number in rpages */ | |
1294 | struct page **cpages; /* pages store compressed data in cluster */ | |
1295 | unsigned int nr_cpages; /* total page number in cpages */ | |
1296 | void *rbuf; /* virtual mapped address on rpages */ | |
1297 | struct compress_data *cbuf; /* virtual mapped address on cpages */ | |
1298 | size_t rlen; /* valid data length in rbuf */ | |
1299 | size_t clen; /* valid data length in cbuf */ | |
1300 | void *private; /* payload buffer for specified compression algorithm */ | |
1301 | void *private2; /* extra payload buffer */ | |
1302 | }; | |
1303 | ||
1304 | /* compress context for write IO path */ | |
1305 | struct compress_io_ctx { | |
1306 | u32 magic; /* magic number to indicate page is compressed */ | |
1307 | struct inode *inode; /* inode the context belong to */ | |
1308 | struct page **rpages; /* pages store raw data in cluster */ | |
1309 | unsigned int nr_rpages; /* total page number in rpages */ | |
1310 | refcount_t ref; /* referrence count of raw page */ | |
1311 | }; | |
1312 | ||
1313 | /* decompress io context for read IO path */ | |
1314 | struct decompress_io_ctx { | |
1315 | u32 magic; /* magic number to indicate page is compressed */ | |
1316 | struct inode *inode; /* inode the context belong to */ | |
1317 | pgoff_t cluster_idx; /* cluster index number */ | |
1318 | unsigned int cluster_size; /* page count in cluster */ | |
1319 | unsigned int log_cluster_size; /* log of cluster size */ | |
1320 | struct page **rpages; /* pages store raw data in cluster */ | |
1321 | unsigned int nr_rpages; /* total page number in rpages */ | |
1322 | struct page **cpages; /* pages store compressed data in cluster */ | |
1323 | unsigned int nr_cpages; /* total page number in cpages */ | |
1324 | struct page **tpages; /* temp pages to pad holes in cluster */ | |
1325 | void *rbuf; /* virtual mapped address on rpages */ | |
1326 | struct compress_data *cbuf; /* virtual mapped address on cpages */ | |
1327 | size_t rlen; /* valid data length in rbuf */ | |
1328 | size_t clen; /* valid data length in cbuf */ | |
1329 | refcount_t ref; /* referrence count of compressed page */ | |
1330 | bool failed; /* indicate IO error during decompression */ | |
1331 | void *private; /* payload buffer for specified decompression algorithm */ | |
1332 | void *private2; /* extra payload buffer */ | |
1333 | }; | |
1334 | ||
1335 | #define NULL_CLUSTER ((unsigned int)(~0)) | |
1336 | #define MIN_COMPRESS_LOG_SIZE 2 | |
1337 | #define MAX_COMPRESS_LOG_SIZE 8 | |
1338 | #define MAX_COMPRESS_WINDOW_SIZE ((PAGE_SIZE) << MAX_COMPRESS_LOG_SIZE) | |
1339 | ||
1340 | struct f2fs_sb_info { | |
1341 | struct super_block *sb; /* pointer to VFS super block */ | |
1342 | struct proc_dir_entry *s_proc; /* proc entry */ | |
1343 | struct f2fs_super_block *raw_super; /* raw super block pointer */ | |
1344 | struct rw_semaphore sb_lock; /* lock for raw super block */ | |
1345 | int valid_super_block; /* valid super block no */ | |
1346 | unsigned long s_flag; /* flags for sbi */ | |
1347 | struct mutex writepages; /* mutex for writepages() */ | |
1348 | #ifdef CONFIG_UNICODE | |
1349 | struct unicode_map *s_encoding; | |
1350 | __u16 s_encoding_flags; | |
1351 | #endif | |
1352 | ||
1353 | #ifdef CONFIG_BLK_DEV_ZONED | |
1354 | unsigned int blocks_per_blkz; /* F2FS blocks per zone */ | |
1355 | unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ | |
1356 | #endif | |
1357 | ||
1358 | /* for node-related operations */ | |
1359 | struct f2fs_nm_info *nm_info; /* node manager */ | |
1360 | struct inode *node_inode; /* cache node blocks */ | |
1361 | ||
1362 | /* for segment-related operations */ | |
1363 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1364 | ||
1365 | /* for bio operations */ | |
1366 | struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ | |
1367 | /* keep migration IO order for LFS mode */ | |
1368 | struct rw_semaphore io_order_lock; | |
1369 | mempool_t *write_io_dummy; /* Dummy pages */ | |
1370 | ||
1371 | /* for checkpoint */ | |
1372 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
1373 | int cur_cp_pack; /* remain current cp pack */ | |
1374 | spinlock_t cp_lock; /* for flag in ckpt */ | |
1375 | struct inode *meta_inode; /* cache meta blocks */ | |
1376 | struct mutex cp_mutex; /* checkpoint procedure lock */ | |
1377 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ | |
1378 | struct rw_semaphore node_write; /* locking node writes */ | |
1379 | struct rw_semaphore node_change; /* locking node change */ | |
1380 | wait_queue_head_t cp_wait; | |
1381 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ | |
1382 | long interval_time[MAX_TIME]; /* to store thresholds */ | |
1383 | ||
1384 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ | |
1385 | ||
1386 | spinlock_t fsync_node_lock; /* for node entry lock */ | |
1387 | struct list_head fsync_node_list; /* node list head */ | |
1388 | unsigned int fsync_seg_id; /* sequence id */ | |
1389 | unsigned int fsync_node_num; /* number of node entries */ | |
1390 | ||
1391 | /* for orphan inode, use 0'th array */ | |
1392 | unsigned int max_orphans; /* max orphan inodes */ | |
1393 | ||
1394 | /* for inode management */ | |
1395 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ | |
1396 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ | |
1397 | struct mutex flush_lock; /* for flush exclusion */ | |
1398 | ||
1399 | /* for extent tree cache */ | |
1400 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
1401 | struct mutex extent_tree_lock; /* locking extent radix tree */ | |
1402 | struct list_head extent_list; /* lru list for shrinker */ | |
1403 | spinlock_t extent_lock; /* locking extent lru list */ | |
1404 | atomic_t total_ext_tree; /* extent tree count */ | |
1405 | struct list_head zombie_list; /* extent zombie tree list */ | |
1406 | atomic_t total_zombie_tree; /* extent zombie tree count */ | |
1407 | atomic_t total_ext_node; /* extent info count */ | |
1408 | ||
1409 | /* basic filesystem units */ | |
1410 | unsigned int log_sectors_per_block; /* log2 sectors per block */ | |
1411 | unsigned int log_blocksize; /* log2 block size */ | |
1412 | unsigned int blocksize; /* block size */ | |
1413 | unsigned int root_ino_num; /* root inode number*/ | |
1414 | unsigned int node_ino_num; /* node inode number*/ | |
1415 | unsigned int meta_ino_num; /* meta inode number*/ | |
1416 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
1417 | unsigned int blocks_per_seg; /* blocks per segment */ | |
1418 | unsigned int segs_per_sec; /* segments per section */ | |
1419 | unsigned int secs_per_zone; /* sections per zone */ | |
1420 | unsigned int total_sections; /* total section count */ | |
1421 | struct mutex resize_mutex; /* for resize exclusion */ | |
1422 | unsigned int total_node_count; /* total node block count */ | |
1423 | unsigned int total_valid_node_count; /* valid node block count */ | |
1424 | loff_t max_file_blocks; /* max block index of file */ | |
1425 | int dir_level; /* directory level */ | |
1426 | int readdir_ra; /* readahead inode in readdir */ | |
1427 | ||
1428 | block_t user_block_count; /* # of user blocks */ | |
1429 | block_t total_valid_block_count; /* # of valid blocks */ | |
1430 | block_t discard_blks; /* discard command candidats */ | |
1431 | block_t last_valid_block_count; /* for recovery */ | |
1432 | block_t reserved_blocks; /* configurable reserved blocks */ | |
1433 | block_t current_reserved_blocks; /* current reserved blocks */ | |
1434 | ||
1435 | /* Additional tracking for no checkpoint mode */ | |
1436 | block_t unusable_block_count; /* # of blocks saved by last cp */ | |
1437 | ||
1438 | unsigned int nquota_files; /* # of quota sysfile */ | |
1439 | struct rw_semaphore quota_sem; /* blocking cp for flags */ | |
1440 | ||
1441 | /* # of pages, see count_type */ | |
1442 | atomic_t nr_pages[NR_COUNT_TYPE]; | |
1443 | /* # of allocated blocks */ | |
1444 | struct percpu_counter alloc_valid_block_count; | |
1445 | ||
1446 | /* writeback control */ | |
1447 | atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ | |
1448 | ||
1449 | /* valid inode count */ | |
1450 | struct percpu_counter total_valid_inode_count; | |
1451 | ||
1452 | struct f2fs_mount_info mount_opt; /* mount options */ | |
1453 | ||
1454 | /* for cleaning operations */ | |
1455 | struct rw_semaphore gc_lock; /* | |
1456 | * semaphore for GC, avoid | |
1457 | * race between GC and GC or CP | |
1458 | */ | |
1459 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
1460 | unsigned int cur_victim_sec; /* current victim section num */ | |
1461 | unsigned int gc_mode; /* current GC state */ | |
1462 | unsigned int next_victim_seg[2]; /* next segment in victim section */ | |
1463 | /* for skip statistic */ | |
1464 | unsigned int atomic_files; /* # of opened atomic file */ | |
1465 | unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ | |
1466 | unsigned long long skipped_gc_rwsem; /* FG_GC only */ | |
1467 | ||
1468 | /* threshold for gc trials on pinned files */ | |
1469 | u64 gc_pin_file_threshold; | |
1470 | struct rw_semaphore pin_sem; | |
1471 | ||
1472 | /* maximum # of trials to find a victim segment for SSR and GC */ | |
1473 | unsigned int max_victim_search; | |
1474 | /* migration granularity of garbage collection, unit: segment */ | |
1475 | unsigned int migration_granularity; | |
1476 | ||
1477 | /* | |
1478 | * for stat information. | |
1479 | * one is for the LFS mode, and the other is for the SSR mode. | |
1480 | */ | |
1481 | #ifdef CONFIG_F2FS_STAT_FS | |
1482 | struct f2fs_stat_info *stat_info; /* FS status information */ | |
1483 | atomic_t meta_count[META_MAX]; /* # of meta blocks */ | |
1484 | unsigned int segment_count[2]; /* # of allocated segments */ | |
1485 | unsigned int block_count[2]; /* # of allocated blocks */ | |
1486 | atomic_t inplace_count; /* # of inplace update */ | |
1487 | atomic64_t total_hit_ext; /* # of lookup extent cache */ | |
1488 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
1489 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
1490 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
1491 | atomic_t inline_xattr; /* # of inline_xattr inodes */ | |
1492 | atomic_t inline_inode; /* # of inline_data inodes */ | |
1493 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
1494 | atomic_t compr_inode; /* # of compressed inodes */ | |
1495 | atomic_t compr_blocks; /* # of compressed blocks */ | |
1496 | atomic_t vw_cnt; /* # of volatile writes */ | |
1497 | atomic_t max_aw_cnt; /* max # of atomic writes */ | |
1498 | atomic_t max_vw_cnt; /* max # of volatile writes */ | |
1499 | unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ | |
1500 | unsigned int other_skip_bggc; /* skip background gc for other reasons */ | |
1501 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ | |
1502 | #endif | |
1503 | spinlock_t stat_lock; /* lock for stat operations */ | |
1504 | ||
1505 | /* For app/fs IO statistics */ | |
1506 | spinlock_t iostat_lock; | |
1507 | unsigned long long write_iostat[NR_IO_TYPE]; | |
1508 | bool iostat_enable; | |
1509 | ||
1510 | /* For sysfs suppport */ | |
1511 | struct kobject s_kobj; | |
1512 | struct completion s_kobj_unregister; | |
1513 | ||
1514 | /* For shrinker support */ | |
1515 | struct list_head s_list; | |
1516 | int s_ndevs; /* number of devices */ | |
1517 | struct f2fs_dev_info *devs; /* for device list */ | |
1518 | unsigned int dirty_device; /* for checkpoint data flush */ | |
1519 | spinlock_t dev_lock; /* protect dirty_device */ | |
1520 | struct mutex umount_mutex; | |
1521 | unsigned int shrinker_run_no; | |
1522 | ||
1523 | /* For write statistics */ | |
1524 | u64 sectors_written_start; | |
1525 | u64 kbytes_written; | |
1526 | ||
1527 | /* Reference to checksum algorithm driver via cryptoapi */ | |
1528 | struct crypto_shash *s_chksum_driver; | |
1529 | ||
1530 | /* Precomputed FS UUID checksum for seeding other checksums */ | |
1531 | __u32 s_chksum_seed; | |
1532 | ||
1533 | struct workqueue_struct *post_read_wq; /* post read workqueue */ | |
1534 | ||
1535 | struct kmem_cache *inline_xattr_slab; /* inline xattr entry */ | |
1536 | unsigned int inline_xattr_slab_size; /* default inline xattr slab size */ | |
1537 | }; | |
1538 | ||
1539 | struct f2fs_private_dio { | |
1540 | struct inode *inode; | |
1541 | void *orig_private; | |
1542 | bio_end_io_t *orig_end_io; | |
1543 | bool write; | |
1544 | }; | |
1545 | ||
1546 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1547 | #define f2fs_show_injection_info(sbi, type) \ | |
1548 | printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \ | |
1549 | KERN_INFO, sbi->sb->s_id, \ | |
1550 | f2fs_fault_name[type], \ | |
1551 | __func__, __builtin_return_address(0)) | |
1552 | static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) | |
1553 | { | |
1554 | struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; | |
1555 | ||
1556 | if (!ffi->inject_rate) | |
1557 | return false; | |
1558 | ||
1559 | if (!IS_FAULT_SET(ffi, type)) | |
1560 | return false; | |
1561 | ||
1562 | atomic_inc(&ffi->inject_ops); | |
1563 | if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { | |
1564 | atomic_set(&ffi->inject_ops, 0); | |
1565 | return true; | |
1566 | } | |
1567 | return false; | |
1568 | } | |
1569 | #else | |
1570 | #define f2fs_show_injection_info(sbi, type) do { } while (0) | |
1571 | static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) | |
1572 | { | |
1573 | return false; | |
1574 | } | |
1575 | #endif | |
1576 | ||
1577 | /* | |
1578 | * Test if the mounted volume is a multi-device volume. | |
1579 | * - For a single regular disk volume, sbi->s_ndevs is 0. | |
1580 | * - For a single zoned disk volume, sbi->s_ndevs is 1. | |
1581 | * - For a multi-device volume, sbi->s_ndevs is always 2 or more. | |
1582 | */ | |
1583 | static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi) | |
1584 | { | |
1585 | return sbi->s_ndevs > 1; | |
1586 | } | |
1587 | ||
1588 | /* For write statistics. Suppose sector size is 512 bytes, | |
1589 | * and the return value is in kbytes. s is of struct f2fs_sb_info. | |
1590 | */ | |
1591 | #define BD_PART_WRITTEN(s) \ | |
1592 | (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \ | |
1593 | (s)->sectors_written_start) >> 1) | |
1594 | ||
1595 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) | |
1596 | { | |
1597 | unsigned long now = jiffies; | |
1598 | ||
1599 | sbi->last_time[type] = now; | |
1600 | ||
1601 | /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ | |
1602 | if (type == REQ_TIME) { | |
1603 | sbi->last_time[DISCARD_TIME] = now; | |
1604 | sbi->last_time[GC_TIME] = now; | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) | |
1609 | { | |
1610 | unsigned long interval = sbi->interval_time[type] * HZ; | |
1611 | ||
1612 | return time_after(jiffies, sbi->last_time[type] + interval); | |
1613 | } | |
1614 | ||
1615 | static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, | |
1616 | int type) | |
1617 | { | |
1618 | unsigned long interval = sbi->interval_time[type] * HZ; | |
1619 | unsigned int wait_ms = 0; | |
1620 | long delta; | |
1621 | ||
1622 | delta = (sbi->last_time[type] + interval) - jiffies; | |
1623 | if (delta > 0) | |
1624 | wait_ms = jiffies_to_msecs(delta); | |
1625 | ||
1626 | return wait_ms; | |
1627 | } | |
1628 | ||
1629 | /* | |
1630 | * Inline functions | |
1631 | */ | |
1632 | static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, | |
1633 | const void *address, unsigned int length) | |
1634 | { | |
1635 | struct { | |
1636 | struct shash_desc shash; | |
1637 | char ctx[4]; | |
1638 | } desc; | |
1639 | int err; | |
1640 | ||
1641 | BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); | |
1642 | ||
1643 | desc.shash.tfm = sbi->s_chksum_driver; | |
1644 | *(u32 *)desc.ctx = crc; | |
1645 | ||
1646 | err = crypto_shash_update(&desc.shash, address, length); | |
1647 | BUG_ON(err); | |
1648 | ||
1649 | return *(u32 *)desc.ctx; | |
1650 | } | |
1651 | ||
1652 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, | |
1653 | unsigned int length) | |
1654 | { | |
1655 | return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); | |
1656 | } | |
1657 | ||
1658 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, | |
1659 | void *buf, size_t buf_size) | |
1660 | { | |
1661 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; | |
1662 | } | |
1663 | ||
1664 | static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, | |
1665 | const void *address, unsigned int length) | |
1666 | { | |
1667 | return __f2fs_crc32(sbi, crc, address, length); | |
1668 | } | |
1669 | ||
1670 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) | |
1671 | { | |
1672 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
1673 | } | |
1674 | ||
1675 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
1676 | { | |
1677 | return sb->s_fs_info; | |
1678 | } | |
1679 | ||
1680 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) | |
1681 | { | |
1682 | return F2FS_SB(inode->i_sb); | |
1683 | } | |
1684 | ||
1685 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
1686 | { | |
1687 | return F2FS_I_SB(mapping->host); | |
1688 | } | |
1689 | ||
1690 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
1691 | { | |
1692 | return F2FS_M_SB(page_file_mapping(page)); | |
1693 | } | |
1694 | ||
1695 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) | |
1696 | { | |
1697 | return (struct f2fs_super_block *)(sbi->raw_super); | |
1698 | } | |
1699 | ||
1700 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
1701 | { | |
1702 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
1703 | } | |
1704 | ||
1705 | static inline struct f2fs_node *F2FS_NODE(struct page *page) | |
1706 | { | |
1707 | return (struct f2fs_node *)page_address(page); | |
1708 | } | |
1709 | ||
1710 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) | |
1711 | { | |
1712 | return &((struct f2fs_node *)page_address(page))->i; | |
1713 | } | |
1714 | ||
1715 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) | |
1716 | { | |
1717 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
1718 | } | |
1719 | ||
1720 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
1721 | { | |
1722 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
1723 | } | |
1724 | ||
1725 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
1726 | { | |
1727 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
1728 | } | |
1729 | ||
1730 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
1731 | { | |
1732 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
1733 | } | |
1734 | ||
1735 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
1736 | { | |
1737 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
1738 | } | |
1739 | ||
1740 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) | |
1741 | { | |
1742 | return sbi->meta_inode->i_mapping; | |
1743 | } | |
1744 | ||
1745 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) | |
1746 | { | |
1747 | return sbi->node_inode->i_mapping; | |
1748 | } | |
1749 | ||
1750 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) | |
1751 | { | |
1752 | return test_bit(type, &sbi->s_flag); | |
1753 | } | |
1754 | ||
1755 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
1756 | { | |
1757 | set_bit(type, &sbi->s_flag); | |
1758 | } | |
1759 | ||
1760 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
1761 | { | |
1762 | clear_bit(type, &sbi->s_flag); | |
1763 | } | |
1764 | ||
1765 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) | |
1766 | { | |
1767 | return le64_to_cpu(cp->checkpoint_ver); | |
1768 | } | |
1769 | ||
1770 | static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) | |
1771 | { | |
1772 | if (type < F2FS_MAX_QUOTAS) | |
1773 | return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); | |
1774 | return 0; | |
1775 | } | |
1776 | ||
1777 | static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) | |
1778 | { | |
1779 | size_t crc_offset = le32_to_cpu(cp->checksum_offset); | |
1780 | return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); | |
1781 | } | |
1782 | ||
1783 | static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1784 | { | |
1785 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1786 | ||
1787 | return ckpt_flags & f; | |
1788 | } | |
1789 | ||
1790 | static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) | |
1791 | { | |
1792 | return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); | |
1793 | } | |
1794 | ||
1795 | static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1796 | { | |
1797 | unsigned int ckpt_flags; | |
1798 | ||
1799 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1800 | ckpt_flags |= f; | |
1801 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1802 | } | |
1803 | ||
1804 | static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) | |
1805 | { | |
1806 | unsigned long flags; | |
1807 | ||
1808 | spin_lock_irqsave(&sbi->cp_lock, flags); | |
1809 | __set_ckpt_flags(F2FS_CKPT(sbi), f); | |
1810 | spin_unlock_irqrestore(&sbi->cp_lock, flags); | |
1811 | } | |
1812 | ||
1813 | static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1814 | { | |
1815 | unsigned int ckpt_flags; | |
1816 | ||
1817 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1818 | ckpt_flags &= (~f); | |
1819 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1820 | } | |
1821 | ||
1822 | static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) | |
1823 | { | |
1824 | unsigned long flags; | |
1825 | ||
1826 | spin_lock_irqsave(&sbi->cp_lock, flags); | |
1827 | __clear_ckpt_flags(F2FS_CKPT(sbi), f); | |
1828 | spin_unlock_irqrestore(&sbi->cp_lock, flags); | |
1829 | } | |
1830 | ||
1831 | static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) | |
1832 | { | |
1833 | unsigned long flags; | |
1834 | unsigned char *nat_bits; | |
1835 | ||
1836 | /* | |
1837 | * In order to re-enable nat_bits we need to call fsck.f2fs by | |
1838 | * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, | |
1839 | * so let's rely on regular fsck or unclean shutdown. | |
1840 | */ | |
1841 | ||
1842 | if (lock) | |
1843 | spin_lock_irqsave(&sbi->cp_lock, flags); | |
1844 | __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); | |
1845 | nat_bits = NM_I(sbi)->nat_bits; | |
1846 | NM_I(sbi)->nat_bits = NULL; | |
1847 | if (lock) | |
1848 | spin_unlock_irqrestore(&sbi->cp_lock, flags); | |
1849 | ||
1850 | kvfree(nat_bits); | |
1851 | } | |
1852 | ||
1853 | static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, | |
1854 | struct cp_control *cpc) | |
1855 | { | |
1856 | bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); | |
1857 | ||
1858 | return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; | |
1859 | } | |
1860 | ||
1861 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) | |
1862 | { | |
1863 | down_read(&sbi->cp_rwsem); | |
1864 | } | |
1865 | ||
1866 | static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) | |
1867 | { | |
1868 | return down_read_trylock(&sbi->cp_rwsem); | |
1869 | } | |
1870 | ||
1871 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) | |
1872 | { | |
1873 | up_read(&sbi->cp_rwsem); | |
1874 | } | |
1875 | ||
1876 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) | |
1877 | { | |
1878 | down_write(&sbi->cp_rwsem); | |
1879 | } | |
1880 | ||
1881 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) | |
1882 | { | |
1883 | up_write(&sbi->cp_rwsem); | |
1884 | } | |
1885 | ||
1886 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) | |
1887 | { | |
1888 | int reason = CP_SYNC; | |
1889 | ||
1890 | if (test_opt(sbi, FASTBOOT)) | |
1891 | reason = CP_FASTBOOT; | |
1892 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
1893 | reason = CP_UMOUNT; | |
1894 | return reason; | |
1895 | } | |
1896 | ||
1897 | static inline bool __remain_node_summaries(int reason) | |
1898 | { | |
1899 | return (reason & (CP_UMOUNT | CP_FASTBOOT)); | |
1900 | } | |
1901 | ||
1902 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
1903 | { | |
1904 | return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || | |
1905 | is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); | |
1906 | } | |
1907 | ||
1908 | /* | |
1909 | * Check whether the inode has blocks or not | |
1910 | */ | |
1911 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1912 | { | |
1913 | block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; | |
1914 | ||
1915 | return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; | |
1916 | } | |
1917 | ||
1918 | static inline bool f2fs_has_xattr_block(unsigned int ofs) | |
1919 | { | |
1920 | return ofs == XATTR_NODE_OFFSET; | |
1921 | } | |
1922 | ||
1923 | static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, | |
1924 | struct inode *inode, bool cap) | |
1925 | { | |
1926 | if (!inode) | |
1927 | return true; | |
1928 | if (!test_opt(sbi, RESERVE_ROOT)) | |
1929 | return false; | |
1930 | if (IS_NOQUOTA(inode)) | |
1931 | return true; | |
1932 | if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) | |
1933 | return true; | |
1934 | if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && | |
1935 | in_group_p(F2FS_OPTION(sbi).s_resgid)) | |
1936 | return true; | |
1937 | if (cap && capable(CAP_SYS_RESOURCE)) | |
1938 | return true; | |
1939 | return false; | |
1940 | } | |
1941 | ||
1942 | static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); | |
1943 | static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, | |
1944 | struct inode *inode, blkcnt_t *count) | |
1945 | { | |
1946 | blkcnt_t diff = 0, release = 0; | |
1947 | block_t avail_user_block_count; | |
1948 | int ret; | |
1949 | ||
1950 | ret = dquot_reserve_block(inode, *count); | |
1951 | if (ret) | |
1952 | return ret; | |
1953 | ||
1954 | if (time_to_inject(sbi, FAULT_BLOCK)) { | |
1955 | f2fs_show_injection_info(sbi, FAULT_BLOCK); | |
1956 | release = *count; | |
1957 | goto release_quota; | |
1958 | } | |
1959 | ||
1960 | /* | |
1961 | * let's increase this in prior to actual block count change in order | |
1962 | * for f2fs_sync_file to avoid data races when deciding checkpoint. | |
1963 | */ | |
1964 | percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); | |
1965 | ||
1966 | spin_lock(&sbi->stat_lock); | |
1967 | sbi->total_valid_block_count += (block_t)(*count); | |
1968 | avail_user_block_count = sbi->user_block_count - | |
1969 | sbi->current_reserved_blocks; | |
1970 | ||
1971 | if (!__allow_reserved_blocks(sbi, inode, true)) | |
1972 | avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; | |
1973 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { | |
1974 | if (avail_user_block_count > sbi->unusable_block_count) | |
1975 | avail_user_block_count -= sbi->unusable_block_count; | |
1976 | else | |
1977 | avail_user_block_count = 0; | |
1978 | } | |
1979 | if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { | |
1980 | diff = sbi->total_valid_block_count - avail_user_block_count; | |
1981 | if (diff > *count) | |
1982 | diff = *count; | |
1983 | *count -= diff; | |
1984 | release = diff; | |
1985 | sbi->total_valid_block_count -= diff; | |
1986 | if (!*count) { | |
1987 | spin_unlock(&sbi->stat_lock); | |
1988 | goto enospc; | |
1989 | } | |
1990 | } | |
1991 | spin_unlock(&sbi->stat_lock); | |
1992 | ||
1993 | if (unlikely(release)) { | |
1994 | percpu_counter_sub(&sbi->alloc_valid_block_count, release); | |
1995 | dquot_release_reservation_block(inode, release); | |
1996 | } | |
1997 | f2fs_i_blocks_write(inode, *count, true, true); | |
1998 | return 0; | |
1999 | ||
2000 | enospc: | |
2001 | percpu_counter_sub(&sbi->alloc_valid_block_count, release); | |
2002 | release_quota: | |
2003 | dquot_release_reservation_block(inode, release); | |
2004 | return -ENOSPC; | |
2005 | } | |
2006 | ||
2007 | __printf(2, 3) | |
2008 | void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...); | |
2009 | ||
2010 | #define f2fs_err(sbi, fmt, ...) \ | |
2011 | f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__) | |
2012 | #define f2fs_warn(sbi, fmt, ...) \ | |
2013 | f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__) | |
2014 | #define f2fs_notice(sbi, fmt, ...) \ | |
2015 | f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__) | |
2016 | #define f2fs_info(sbi, fmt, ...) \ | |
2017 | f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__) | |
2018 | #define f2fs_debug(sbi, fmt, ...) \ | |
2019 | f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__) | |
2020 | ||
2021 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, | |
2022 | struct inode *inode, | |
2023 | block_t count) | |
2024 | { | |
2025 | blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; | |
2026 | ||
2027 | spin_lock(&sbi->stat_lock); | |
2028 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); | |
2029 | sbi->total_valid_block_count -= (block_t)count; | |
2030 | if (sbi->reserved_blocks && | |
2031 | sbi->current_reserved_blocks < sbi->reserved_blocks) | |
2032 | sbi->current_reserved_blocks = min(sbi->reserved_blocks, | |
2033 | sbi->current_reserved_blocks + count); | |
2034 | spin_unlock(&sbi->stat_lock); | |
2035 | if (unlikely(inode->i_blocks < sectors)) { | |
2036 | f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu", | |
2037 | inode->i_ino, | |
2038 | (unsigned long long)inode->i_blocks, | |
2039 | (unsigned long long)sectors); | |
2040 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2041 | return; | |
2042 | } | |
2043 | f2fs_i_blocks_write(inode, count, false, true); | |
2044 | } | |
2045 | ||
2046 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
2047 | { | |
2048 | atomic_inc(&sbi->nr_pages[count_type]); | |
2049 | ||
2050 | if (count_type == F2FS_DIRTY_DENTS || | |
2051 | count_type == F2FS_DIRTY_NODES || | |
2052 | count_type == F2FS_DIRTY_META || | |
2053 | count_type == F2FS_DIRTY_QDATA || | |
2054 | count_type == F2FS_DIRTY_IMETA) | |
2055 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
2056 | } | |
2057 | ||
2058 | static inline void inode_inc_dirty_pages(struct inode *inode) | |
2059 | { | |
2060 | atomic_inc(&F2FS_I(inode)->dirty_pages); | |
2061 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? | |
2062 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
2063 | if (IS_NOQUOTA(inode)) | |
2064 | inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); | |
2065 | } | |
2066 | ||
2067 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
2068 | { | |
2069 | atomic_dec(&sbi->nr_pages[count_type]); | |
2070 | } | |
2071 | ||
2072 | static inline void inode_dec_dirty_pages(struct inode *inode) | |
2073 | { | |
2074 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && | |
2075 | !S_ISLNK(inode->i_mode)) | |
2076 | return; | |
2077 | ||
2078 | atomic_dec(&F2FS_I(inode)->dirty_pages); | |
2079 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? | |
2080 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
2081 | if (IS_NOQUOTA(inode)) | |
2082 | dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); | |
2083 | } | |
2084 | ||
2085 | static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) | |
2086 | { | |
2087 | return atomic_read(&sbi->nr_pages[count_type]); | |
2088 | } | |
2089 | ||
2090 | static inline int get_dirty_pages(struct inode *inode) | |
2091 | { | |
2092 | return atomic_read(&F2FS_I(inode)->dirty_pages); | |
2093 | } | |
2094 | ||
2095 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) | |
2096 | { | |
2097 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; | |
2098 | unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> | |
2099 | sbi->log_blocks_per_seg; | |
2100 | ||
2101 | return segs / sbi->segs_per_sec; | |
2102 | } | |
2103 | ||
2104 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) | |
2105 | { | |
2106 | return sbi->total_valid_block_count; | |
2107 | } | |
2108 | ||
2109 | static inline block_t discard_blocks(struct f2fs_sb_info *sbi) | |
2110 | { | |
2111 | return sbi->discard_blks; | |
2112 | } | |
2113 | ||
2114 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) | |
2115 | { | |
2116 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2117 | ||
2118 | /* return NAT or SIT bitmap */ | |
2119 | if (flag == NAT_BITMAP) | |
2120 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
2121 | else if (flag == SIT_BITMAP) | |
2122 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
2123 | ||
2124 | return 0; | |
2125 | } | |
2126 | ||
2127 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) | |
2128 | { | |
2129 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
2130 | } | |
2131 | ||
2132 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) | |
2133 | { | |
2134 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2135 | int offset; | |
2136 | ||
2137 | if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { | |
2138 | offset = (flag == SIT_BITMAP) ? | |
2139 | le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; | |
2140 | /* | |
2141 | * if large_nat_bitmap feature is enabled, leave checksum | |
2142 | * protection for all nat/sit bitmaps. | |
2143 | */ | |
2144 | return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32); | |
2145 | } | |
2146 | ||
2147 | if (__cp_payload(sbi) > 0) { | |
2148 | if (flag == NAT_BITMAP) | |
2149 | return &ckpt->sit_nat_version_bitmap; | |
2150 | else | |
2151 | return (unsigned char *)ckpt + F2FS_BLKSIZE; | |
2152 | } else { | |
2153 | offset = (flag == NAT_BITMAP) ? | |
2154 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; | |
2155 | return &ckpt->sit_nat_version_bitmap + offset; | |
2156 | } | |
2157 | } | |
2158 | ||
2159 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
2160 | { | |
2161 | block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); | |
2162 | ||
2163 | if (sbi->cur_cp_pack == 2) | |
2164 | start_addr += sbi->blocks_per_seg; | |
2165 | return start_addr; | |
2166 | } | |
2167 | ||
2168 | static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) | |
2169 | { | |
2170 | block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); | |
2171 | ||
2172 | if (sbi->cur_cp_pack == 1) | |
2173 | start_addr += sbi->blocks_per_seg; | |
2174 | return start_addr; | |
2175 | } | |
2176 | ||
2177 | static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) | |
2178 | { | |
2179 | sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; | |
2180 | } | |
2181 | ||
2182 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
2183 | { | |
2184 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
2185 | } | |
2186 | ||
2187 | static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, | |
2188 | struct inode *inode, bool is_inode) | |
2189 | { | |
2190 | block_t valid_block_count; | |
2191 | unsigned int valid_node_count, user_block_count; | |
2192 | int err; | |
2193 | ||
2194 | if (is_inode) { | |
2195 | if (inode) { | |
2196 | err = dquot_alloc_inode(inode); | |
2197 | if (err) | |
2198 | return err; | |
2199 | } | |
2200 | } else { | |
2201 | err = dquot_reserve_block(inode, 1); | |
2202 | if (err) | |
2203 | return err; | |
2204 | } | |
2205 | ||
2206 | if (time_to_inject(sbi, FAULT_BLOCK)) { | |
2207 | f2fs_show_injection_info(sbi, FAULT_BLOCK); | |
2208 | goto enospc; | |
2209 | } | |
2210 | ||
2211 | spin_lock(&sbi->stat_lock); | |
2212 | ||
2213 | valid_block_count = sbi->total_valid_block_count + | |
2214 | sbi->current_reserved_blocks + 1; | |
2215 | ||
2216 | if (!__allow_reserved_blocks(sbi, inode, false)) | |
2217 | valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; | |
2218 | user_block_count = sbi->user_block_count; | |
2219 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) | |
2220 | user_block_count -= sbi->unusable_block_count; | |
2221 | ||
2222 | if (unlikely(valid_block_count > user_block_count)) { | |
2223 | spin_unlock(&sbi->stat_lock); | |
2224 | goto enospc; | |
2225 | } | |
2226 | ||
2227 | valid_node_count = sbi->total_valid_node_count + 1; | |
2228 | if (unlikely(valid_node_count > sbi->total_node_count)) { | |
2229 | spin_unlock(&sbi->stat_lock); | |
2230 | goto enospc; | |
2231 | } | |
2232 | ||
2233 | sbi->total_valid_node_count++; | |
2234 | sbi->total_valid_block_count++; | |
2235 | spin_unlock(&sbi->stat_lock); | |
2236 | ||
2237 | if (inode) { | |
2238 | if (is_inode) | |
2239 | f2fs_mark_inode_dirty_sync(inode, true); | |
2240 | else | |
2241 | f2fs_i_blocks_write(inode, 1, true, true); | |
2242 | } | |
2243 | ||
2244 | percpu_counter_inc(&sbi->alloc_valid_block_count); | |
2245 | return 0; | |
2246 | ||
2247 | enospc: | |
2248 | if (is_inode) { | |
2249 | if (inode) | |
2250 | dquot_free_inode(inode); | |
2251 | } else { | |
2252 | dquot_release_reservation_block(inode, 1); | |
2253 | } | |
2254 | return -ENOSPC; | |
2255 | } | |
2256 | ||
2257 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
2258 | struct inode *inode, bool is_inode) | |
2259 | { | |
2260 | spin_lock(&sbi->stat_lock); | |
2261 | ||
2262 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); | |
2263 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
2264 | ||
2265 | sbi->total_valid_node_count--; | |
2266 | sbi->total_valid_block_count--; | |
2267 | if (sbi->reserved_blocks && | |
2268 | sbi->current_reserved_blocks < sbi->reserved_blocks) | |
2269 | sbi->current_reserved_blocks++; | |
2270 | ||
2271 | spin_unlock(&sbi->stat_lock); | |
2272 | ||
2273 | if (is_inode) { | |
2274 | dquot_free_inode(inode); | |
2275 | } else { | |
2276 | if (unlikely(inode->i_blocks == 0)) { | |
2277 | f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu", | |
2278 | inode->i_ino, | |
2279 | (unsigned long long)inode->i_blocks); | |
2280 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2281 | return; | |
2282 | } | |
2283 | f2fs_i_blocks_write(inode, 1, false, true); | |
2284 | } | |
2285 | } | |
2286 | ||
2287 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
2288 | { | |
2289 | return sbi->total_valid_node_count; | |
2290 | } | |
2291 | ||
2292 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
2293 | { | |
2294 | percpu_counter_inc(&sbi->total_valid_inode_count); | |
2295 | } | |
2296 | ||
2297 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) | |
2298 | { | |
2299 | percpu_counter_dec(&sbi->total_valid_inode_count); | |
2300 | } | |
2301 | ||
2302 | static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) | |
2303 | { | |
2304 | return percpu_counter_sum_positive(&sbi->total_valid_inode_count); | |
2305 | } | |
2306 | ||
2307 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, | |
2308 | pgoff_t index, bool for_write) | |
2309 | { | |
2310 | struct page *page; | |
2311 | ||
2312 | if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { | |
2313 | if (!for_write) | |
2314 | page = find_get_page_flags(mapping, index, | |
2315 | FGP_LOCK | FGP_ACCESSED); | |
2316 | else | |
2317 | page = find_lock_page(mapping, index); | |
2318 | if (page) | |
2319 | return page; | |
2320 | ||
2321 | if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { | |
2322 | f2fs_show_injection_info(F2FS_M_SB(mapping), | |
2323 | FAULT_PAGE_ALLOC); | |
2324 | return NULL; | |
2325 | } | |
2326 | } | |
2327 | ||
2328 | if (!for_write) | |
2329 | return grab_cache_page(mapping, index); | |
2330 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); | |
2331 | } | |
2332 | ||
2333 | static inline struct page *f2fs_pagecache_get_page( | |
2334 | struct address_space *mapping, pgoff_t index, | |
2335 | int fgp_flags, gfp_t gfp_mask) | |
2336 | { | |
2337 | if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { | |
2338 | f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET); | |
2339 | return NULL; | |
2340 | } | |
2341 | ||
2342 | return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); | |
2343 | } | |
2344 | ||
2345 | static inline void f2fs_copy_page(struct page *src, struct page *dst) | |
2346 | { | |
2347 | char *src_kaddr = kmap(src); | |
2348 | char *dst_kaddr = kmap(dst); | |
2349 | ||
2350 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); | |
2351 | kunmap(dst); | |
2352 | kunmap(src); | |
2353 | } | |
2354 | ||
2355 | static inline void f2fs_put_page(struct page *page, int unlock) | |
2356 | { | |
2357 | if (!page) | |
2358 | return; | |
2359 | ||
2360 | if (unlock) { | |
2361 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); | |
2362 | unlock_page(page); | |
2363 | } | |
2364 | put_page(page); | |
2365 | } | |
2366 | ||
2367 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
2368 | { | |
2369 | if (dn->node_page) | |
2370 | f2fs_put_page(dn->node_page, 1); | |
2371 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
2372 | f2fs_put_page(dn->inode_page, 0); | |
2373 | dn->node_page = NULL; | |
2374 | dn->inode_page = NULL; | |
2375 | } | |
2376 | ||
2377 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
2378 | size_t size) | |
2379 | { | |
2380 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); | |
2381 | } | |
2382 | ||
2383 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, | |
2384 | gfp_t flags) | |
2385 | { | |
2386 | void *entry; | |
2387 | ||
2388 | entry = kmem_cache_alloc(cachep, flags); | |
2389 | if (!entry) | |
2390 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
2391 | return entry; | |
2392 | } | |
2393 | ||
2394 | static inline bool is_idle(struct f2fs_sb_info *sbi, int type) | |
2395 | { | |
2396 | if (sbi->gc_mode == GC_URGENT) | |
2397 | return true; | |
2398 | ||
2399 | if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || | |
2400 | get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || | |
2401 | get_pages(sbi, F2FS_WB_CP_DATA) || | |
2402 | get_pages(sbi, F2FS_DIO_READ) || | |
2403 | get_pages(sbi, F2FS_DIO_WRITE)) | |
2404 | return false; | |
2405 | ||
2406 | if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info && | |
2407 | atomic_read(&SM_I(sbi)->dcc_info->queued_discard)) | |
2408 | return false; | |
2409 | ||
2410 | if (SM_I(sbi) && SM_I(sbi)->fcc_info && | |
2411 | atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) | |
2412 | return false; | |
2413 | ||
2414 | return f2fs_time_over(sbi, type); | |
2415 | } | |
2416 | ||
2417 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, | |
2418 | unsigned long index, void *item) | |
2419 | { | |
2420 | while (radix_tree_insert(root, index, item)) | |
2421 | cond_resched(); | |
2422 | } | |
2423 | ||
2424 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) | |
2425 | ||
2426 | static inline bool IS_INODE(struct page *page) | |
2427 | { | |
2428 | struct f2fs_node *p = F2FS_NODE(page); | |
2429 | ||
2430 | return RAW_IS_INODE(p); | |
2431 | } | |
2432 | ||
2433 | static inline int offset_in_addr(struct f2fs_inode *i) | |
2434 | { | |
2435 | return (i->i_inline & F2FS_EXTRA_ATTR) ? | |
2436 | (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; | |
2437 | } | |
2438 | ||
2439 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
2440 | { | |
2441 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
2442 | } | |
2443 | ||
2444 | static inline int f2fs_has_extra_attr(struct inode *inode); | |
2445 | static inline block_t data_blkaddr(struct inode *inode, | |
2446 | struct page *node_page, unsigned int offset) | |
2447 | { | |
2448 | struct f2fs_node *raw_node; | |
2449 | __le32 *addr_array; | |
2450 | int base = 0; | |
2451 | bool is_inode = IS_INODE(node_page); | |
2452 | ||
2453 | raw_node = F2FS_NODE(node_page); | |
2454 | ||
2455 | if (is_inode) { | |
2456 | if (!inode) | |
2457 | /* from GC path only */ | |
2458 | base = offset_in_addr(&raw_node->i); | |
2459 | else if (f2fs_has_extra_attr(inode)) | |
2460 | base = get_extra_isize(inode); | |
2461 | } | |
2462 | ||
2463 | addr_array = blkaddr_in_node(raw_node); | |
2464 | return le32_to_cpu(addr_array[base + offset]); | |
2465 | } | |
2466 | ||
2467 | static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn) | |
2468 | { | |
2469 | return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node); | |
2470 | } | |
2471 | ||
2472 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
2473 | { | |
2474 | int mask; | |
2475 | ||
2476 | addr += (nr >> 3); | |
2477 | mask = 1 << (7 - (nr & 0x07)); | |
2478 | return mask & *addr; | |
2479 | } | |
2480 | ||
2481 | static inline void f2fs_set_bit(unsigned int nr, char *addr) | |
2482 | { | |
2483 | int mask; | |
2484 | ||
2485 | addr += (nr >> 3); | |
2486 | mask = 1 << (7 - (nr & 0x07)); | |
2487 | *addr |= mask; | |
2488 | } | |
2489 | ||
2490 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
2491 | { | |
2492 | int mask; | |
2493 | ||
2494 | addr += (nr >> 3); | |
2495 | mask = 1 << (7 - (nr & 0x07)); | |
2496 | *addr &= ~mask; | |
2497 | } | |
2498 | ||
2499 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) | |
2500 | { | |
2501 | int mask; | |
2502 | int ret; | |
2503 | ||
2504 | addr += (nr >> 3); | |
2505 | mask = 1 << (7 - (nr & 0x07)); | |
2506 | ret = mask & *addr; | |
2507 | *addr |= mask; | |
2508 | return ret; | |
2509 | } | |
2510 | ||
2511 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) | |
2512 | { | |
2513 | int mask; | |
2514 | int ret; | |
2515 | ||
2516 | addr += (nr >> 3); | |
2517 | mask = 1 << (7 - (nr & 0x07)); | |
2518 | ret = mask & *addr; | |
2519 | *addr &= ~mask; | |
2520 | return ret; | |
2521 | } | |
2522 | ||
2523 | static inline void f2fs_change_bit(unsigned int nr, char *addr) | |
2524 | { | |
2525 | int mask; | |
2526 | ||
2527 | addr += (nr >> 3); | |
2528 | mask = 1 << (7 - (nr & 0x07)); | |
2529 | *addr ^= mask; | |
2530 | } | |
2531 | ||
2532 | /* | |
2533 | * On-disk inode flags (f2fs_inode::i_flags) | |
2534 | */ | |
2535 | #define F2FS_COMPR_FL 0x00000004 /* Compress file */ | |
2536 | #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ | |
2537 | #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ | |
2538 | #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ | |
2539 | #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ | |
2540 | #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ | |
2541 | #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */ | |
2542 | #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ | |
2543 | #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ | |
2544 | #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ | |
2545 | #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */ | |
2546 | ||
2547 | /* Flags that should be inherited by new inodes from their parent. */ | |
2548 | #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \ | |
2549 | F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ | |
2550 | F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL) | |
2551 | ||
2552 | /* Flags that are appropriate for regular files (all but dir-specific ones). */ | |
2553 | #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ | |
2554 | F2FS_CASEFOLD_FL)) | |
2555 | ||
2556 | /* Flags that are appropriate for non-directories/regular files. */ | |
2557 | #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) | |
2558 | ||
2559 | static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) | |
2560 | { | |
2561 | if (S_ISDIR(mode)) | |
2562 | return flags; | |
2563 | else if (S_ISREG(mode)) | |
2564 | return flags & F2FS_REG_FLMASK; | |
2565 | else | |
2566 | return flags & F2FS_OTHER_FLMASK; | |
2567 | } | |
2568 | ||
2569 | static inline void __mark_inode_dirty_flag(struct inode *inode, | |
2570 | int flag, bool set) | |
2571 | { | |
2572 | switch (flag) { | |
2573 | case FI_INLINE_XATTR: | |
2574 | case FI_INLINE_DATA: | |
2575 | case FI_INLINE_DENTRY: | |
2576 | case FI_NEW_INODE: | |
2577 | if (set) | |
2578 | return; | |
2579 | /* fall through */ | |
2580 | case FI_DATA_EXIST: | |
2581 | case FI_INLINE_DOTS: | |
2582 | case FI_PIN_FILE: | |
2583 | f2fs_mark_inode_dirty_sync(inode, true); | |
2584 | } | |
2585 | } | |
2586 | ||
2587 | static inline void set_inode_flag(struct inode *inode, int flag) | |
2588 | { | |
2589 | test_and_set_bit(flag, F2FS_I(inode)->flags); | |
2590 | __mark_inode_dirty_flag(inode, flag, true); | |
2591 | } | |
2592 | ||
2593 | static inline int is_inode_flag_set(struct inode *inode, int flag) | |
2594 | { | |
2595 | return test_bit(flag, F2FS_I(inode)->flags); | |
2596 | } | |
2597 | ||
2598 | static inline void clear_inode_flag(struct inode *inode, int flag) | |
2599 | { | |
2600 | test_and_clear_bit(flag, F2FS_I(inode)->flags); | |
2601 | __mark_inode_dirty_flag(inode, flag, false); | |
2602 | } | |
2603 | ||
2604 | static inline bool f2fs_verity_in_progress(struct inode *inode) | |
2605 | { | |
2606 | return IS_ENABLED(CONFIG_FS_VERITY) && | |
2607 | is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS); | |
2608 | } | |
2609 | ||
2610 | static inline void set_acl_inode(struct inode *inode, umode_t mode) | |
2611 | { | |
2612 | F2FS_I(inode)->i_acl_mode = mode; | |
2613 | set_inode_flag(inode, FI_ACL_MODE); | |
2614 | f2fs_mark_inode_dirty_sync(inode, false); | |
2615 | } | |
2616 | ||
2617 | static inline void f2fs_i_links_write(struct inode *inode, bool inc) | |
2618 | { | |
2619 | if (inc) | |
2620 | inc_nlink(inode); | |
2621 | else | |
2622 | drop_nlink(inode); | |
2623 | f2fs_mark_inode_dirty_sync(inode, true); | |
2624 | } | |
2625 | ||
2626 | static inline void f2fs_i_blocks_write(struct inode *inode, | |
2627 | block_t diff, bool add, bool claim) | |
2628 | { | |
2629 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); | |
2630 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
2631 | ||
2632 | /* add = 1, claim = 1 should be dquot_reserve_block in pair */ | |
2633 | if (add) { | |
2634 | if (claim) | |
2635 | dquot_claim_block(inode, diff); | |
2636 | else | |
2637 | dquot_alloc_block_nofail(inode, diff); | |
2638 | } else { | |
2639 | dquot_free_block(inode, diff); | |
2640 | } | |
2641 | ||
2642 | f2fs_mark_inode_dirty_sync(inode, true); | |
2643 | if (clean || recover) | |
2644 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
2645 | } | |
2646 | ||
2647 | static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) | |
2648 | { | |
2649 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); | |
2650 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
2651 | ||
2652 | if (i_size_read(inode) == i_size) | |
2653 | return; | |
2654 | ||
2655 | i_size_write(inode, i_size); | |
2656 | f2fs_mark_inode_dirty_sync(inode, true); | |
2657 | if (clean || recover) | |
2658 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
2659 | } | |
2660 | ||
2661 | static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) | |
2662 | { | |
2663 | F2FS_I(inode)->i_current_depth = depth; | |
2664 | f2fs_mark_inode_dirty_sync(inode, true); | |
2665 | } | |
2666 | ||
2667 | static inline void f2fs_i_gc_failures_write(struct inode *inode, | |
2668 | unsigned int count) | |
2669 | { | |
2670 | F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; | |
2671 | f2fs_mark_inode_dirty_sync(inode, true); | |
2672 | } | |
2673 | ||
2674 | static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) | |
2675 | { | |
2676 | F2FS_I(inode)->i_xattr_nid = xnid; | |
2677 | f2fs_mark_inode_dirty_sync(inode, true); | |
2678 | } | |
2679 | ||
2680 | static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) | |
2681 | { | |
2682 | F2FS_I(inode)->i_pino = pino; | |
2683 | f2fs_mark_inode_dirty_sync(inode, true); | |
2684 | } | |
2685 | ||
2686 | static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) | |
2687 | { | |
2688 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
2689 | ||
2690 | if (ri->i_inline & F2FS_INLINE_XATTR) | |
2691 | set_bit(FI_INLINE_XATTR, fi->flags); | |
2692 | if (ri->i_inline & F2FS_INLINE_DATA) | |
2693 | set_bit(FI_INLINE_DATA, fi->flags); | |
2694 | if (ri->i_inline & F2FS_INLINE_DENTRY) | |
2695 | set_bit(FI_INLINE_DENTRY, fi->flags); | |
2696 | if (ri->i_inline & F2FS_DATA_EXIST) | |
2697 | set_bit(FI_DATA_EXIST, fi->flags); | |
2698 | if (ri->i_inline & F2FS_INLINE_DOTS) | |
2699 | set_bit(FI_INLINE_DOTS, fi->flags); | |
2700 | if (ri->i_inline & F2FS_EXTRA_ATTR) | |
2701 | set_bit(FI_EXTRA_ATTR, fi->flags); | |
2702 | if (ri->i_inline & F2FS_PIN_FILE) | |
2703 | set_bit(FI_PIN_FILE, fi->flags); | |
2704 | } | |
2705 | ||
2706 | static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) | |
2707 | { | |
2708 | ri->i_inline = 0; | |
2709 | ||
2710 | if (is_inode_flag_set(inode, FI_INLINE_XATTR)) | |
2711 | ri->i_inline |= F2FS_INLINE_XATTR; | |
2712 | if (is_inode_flag_set(inode, FI_INLINE_DATA)) | |
2713 | ri->i_inline |= F2FS_INLINE_DATA; | |
2714 | if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) | |
2715 | ri->i_inline |= F2FS_INLINE_DENTRY; | |
2716 | if (is_inode_flag_set(inode, FI_DATA_EXIST)) | |
2717 | ri->i_inline |= F2FS_DATA_EXIST; | |
2718 | if (is_inode_flag_set(inode, FI_INLINE_DOTS)) | |
2719 | ri->i_inline |= F2FS_INLINE_DOTS; | |
2720 | if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) | |
2721 | ri->i_inline |= F2FS_EXTRA_ATTR; | |
2722 | if (is_inode_flag_set(inode, FI_PIN_FILE)) | |
2723 | ri->i_inline |= F2FS_PIN_FILE; | |
2724 | } | |
2725 | ||
2726 | static inline int f2fs_has_extra_attr(struct inode *inode) | |
2727 | { | |
2728 | return is_inode_flag_set(inode, FI_EXTRA_ATTR); | |
2729 | } | |
2730 | ||
2731 | static inline int f2fs_has_inline_xattr(struct inode *inode) | |
2732 | { | |
2733 | return is_inode_flag_set(inode, FI_INLINE_XATTR); | |
2734 | } | |
2735 | ||
2736 | static inline int f2fs_compressed_file(struct inode *inode) | |
2737 | { | |
2738 | return S_ISREG(inode->i_mode) && | |
2739 | is_inode_flag_set(inode, FI_COMPRESSED_FILE); | |
2740 | } | |
2741 | ||
2742 | static inline unsigned int addrs_per_inode(struct inode *inode) | |
2743 | { | |
2744 | unsigned int addrs = CUR_ADDRS_PER_INODE(inode) - | |
2745 | get_inline_xattr_addrs(inode); | |
2746 | ||
2747 | if (!f2fs_compressed_file(inode)) | |
2748 | return addrs; | |
2749 | return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size); | |
2750 | } | |
2751 | ||
2752 | static inline unsigned int addrs_per_block(struct inode *inode) | |
2753 | { | |
2754 | if (!f2fs_compressed_file(inode)) | |
2755 | return DEF_ADDRS_PER_BLOCK; | |
2756 | return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size); | |
2757 | } | |
2758 | ||
2759 | static inline void *inline_xattr_addr(struct inode *inode, struct page *page) | |
2760 | { | |
2761 | struct f2fs_inode *ri = F2FS_INODE(page); | |
2762 | ||
2763 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - | |
2764 | get_inline_xattr_addrs(inode)]); | |
2765 | } | |
2766 | ||
2767 | static inline int inline_xattr_size(struct inode *inode) | |
2768 | { | |
2769 | if (f2fs_has_inline_xattr(inode)) | |
2770 | return get_inline_xattr_addrs(inode) * sizeof(__le32); | |
2771 | return 0; | |
2772 | } | |
2773 | ||
2774 | static inline int f2fs_has_inline_data(struct inode *inode) | |
2775 | { | |
2776 | return is_inode_flag_set(inode, FI_INLINE_DATA); | |
2777 | } | |
2778 | ||
2779 | static inline int f2fs_exist_data(struct inode *inode) | |
2780 | { | |
2781 | return is_inode_flag_set(inode, FI_DATA_EXIST); | |
2782 | } | |
2783 | ||
2784 | static inline int f2fs_has_inline_dots(struct inode *inode) | |
2785 | { | |
2786 | return is_inode_flag_set(inode, FI_INLINE_DOTS); | |
2787 | } | |
2788 | ||
2789 | static inline int f2fs_is_mmap_file(struct inode *inode) | |
2790 | { | |
2791 | return is_inode_flag_set(inode, FI_MMAP_FILE); | |
2792 | } | |
2793 | ||
2794 | static inline bool f2fs_is_pinned_file(struct inode *inode) | |
2795 | { | |
2796 | return is_inode_flag_set(inode, FI_PIN_FILE); | |
2797 | } | |
2798 | ||
2799 | static inline bool f2fs_is_atomic_file(struct inode *inode) | |
2800 | { | |
2801 | return is_inode_flag_set(inode, FI_ATOMIC_FILE); | |
2802 | } | |
2803 | ||
2804 | static inline bool f2fs_is_commit_atomic_write(struct inode *inode) | |
2805 | { | |
2806 | return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); | |
2807 | } | |
2808 | ||
2809 | static inline bool f2fs_is_volatile_file(struct inode *inode) | |
2810 | { | |
2811 | return is_inode_flag_set(inode, FI_VOLATILE_FILE); | |
2812 | } | |
2813 | ||
2814 | static inline bool f2fs_is_first_block_written(struct inode *inode) | |
2815 | { | |
2816 | return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); | |
2817 | } | |
2818 | ||
2819 | static inline bool f2fs_is_drop_cache(struct inode *inode) | |
2820 | { | |
2821 | return is_inode_flag_set(inode, FI_DROP_CACHE); | |
2822 | } | |
2823 | ||
2824 | static inline void *inline_data_addr(struct inode *inode, struct page *page) | |
2825 | { | |
2826 | struct f2fs_inode *ri = F2FS_INODE(page); | |
2827 | int extra_size = get_extra_isize(inode); | |
2828 | ||
2829 | return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); | |
2830 | } | |
2831 | ||
2832 | static inline int f2fs_has_inline_dentry(struct inode *inode) | |
2833 | { | |
2834 | return is_inode_flag_set(inode, FI_INLINE_DENTRY); | |
2835 | } | |
2836 | ||
2837 | static inline int is_file(struct inode *inode, int type) | |
2838 | { | |
2839 | return F2FS_I(inode)->i_advise & type; | |
2840 | } | |
2841 | ||
2842 | static inline void set_file(struct inode *inode, int type) | |
2843 | { | |
2844 | F2FS_I(inode)->i_advise |= type; | |
2845 | f2fs_mark_inode_dirty_sync(inode, true); | |
2846 | } | |
2847 | ||
2848 | static inline void clear_file(struct inode *inode, int type) | |
2849 | { | |
2850 | F2FS_I(inode)->i_advise &= ~type; | |
2851 | f2fs_mark_inode_dirty_sync(inode, true); | |
2852 | } | |
2853 | ||
2854 | static inline bool f2fs_is_time_consistent(struct inode *inode) | |
2855 | { | |
2856 | if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) | |
2857 | return false; | |
2858 | if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) | |
2859 | return false; | |
2860 | if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) | |
2861 | return false; | |
2862 | if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, | |
2863 | &F2FS_I(inode)->i_crtime)) | |
2864 | return false; | |
2865 | return true; | |
2866 | } | |
2867 | ||
2868 | static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) | |
2869 | { | |
2870 | bool ret; | |
2871 | ||
2872 | if (dsync) { | |
2873 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2874 | ||
2875 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
2876 | ret = list_empty(&F2FS_I(inode)->gdirty_list); | |
2877 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
2878 | return ret; | |
2879 | } | |
2880 | if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || | |
2881 | file_keep_isize(inode) || | |
2882 | i_size_read(inode) & ~PAGE_MASK) | |
2883 | return false; | |
2884 | ||
2885 | if (!f2fs_is_time_consistent(inode)) | |
2886 | return false; | |
2887 | ||
2888 | spin_lock(&F2FS_I(inode)->i_size_lock); | |
2889 | ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); | |
2890 | spin_unlock(&F2FS_I(inode)->i_size_lock); | |
2891 | ||
2892 | return ret; | |
2893 | } | |
2894 | ||
2895 | static inline bool f2fs_readonly(struct super_block *sb) | |
2896 | { | |
2897 | return sb_rdonly(sb); | |
2898 | } | |
2899 | ||
2900 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) | |
2901 | { | |
2902 | return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); | |
2903 | } | |
2904 | ||
2905 | static inline bool is_dot_dotdot(const struct qstr *str) | |
2906 | { | |
2907 | if (str->len == 1 && str->name[0] == '.') | |
2908 | return true; | |
2909 | ||
2910 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
2911 | return true; | |
2912 | ||
2913 | return false; | |
2914 | } | |
2915 | ||
2916 | static inline bool f2fs_may_extent_tree(struct inode *inode) | |
2917 | { | |
2918 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2919 | ||
2920 | if (!test_opt(sbi, EXTENT_CACHE) || | |
2921 | is_inode_flag_set(inode, FI_NO_EXTENT) || | |
2922 | is_inode_flag_set(inode, FI_COMPRESSED_FILE)) | |
2923 | return false; | |
2924 | ||
2925 | /* | |
2926 | * for recovered files during mount do not create extents | |
2927 | * if shrinker is not registered. | |
2928 | */ | |
2929 | if (list_empty(&sbi->s_list)) | |
2930 | return false; | |
2931 | ||
2932 | return S_ISREG(inode->i_mode); | |
2933 | } | |
2934 | ||
2935 | static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, | |
2936 | size_t size, gfp_t flags) | |
2937 | { | |
2938 | void *ret; | |
2939 | ||
2940 | if (time_to_inject(sbi, FAULT_KMALLOC)) { | |
2941 | f2fs_show_injection_info(sbi, FAULT_KMALLOC); | |
2942 | return NULL; | |
2943 | } | |
2944 | ||
2945 | ret = kmalloc(size, flags); | |
2946 | if (ret) | |
2947 | return ret; | |
2948 | ||
2949 | return kvmalloc(size, flags); | |
2950 | } | |
2951 | ||
2952 | static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, | |
2953 | size_t size, gfp_t flags) | |
2954 | { | |
2955 | return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); | |
2956 | } | |
2957 | ||
2958 | static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, | |
2959 | size_t size, gfp_t flags) | |
2960 | { | |
2961 | if (time_to_inject(sbi, FAULT_KVMALLOC)) { | |
2962 | f2fs_show_injection_info(sbi, FAULT_KVMALLOC); | |
2963 | return NULL; | |
2964 | } | |
2965 | ||
2966 | return kvmalloc(size, flags); | |
2967 | } | |
2968 | ||
2969 | static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, | |
2970 | size_t size, gfp_t flags) | |
2971 | { | |
2972 | return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); | |
2973 | } | |
2974 | ||
2975 | static inline int get_extra_isize(struct inode *inode) | |
2976 | { | |
2977 | return F2FS_I(inode)->i_extra_isize / sizeof(__le32); | |
2978 | } | |
2979 | ||
2980 | static inline int get_inline_xattr_addrs(struct inode *inode) | |
2981 | { | |
2982 | return F2FS_I(inode)->i_inline_xattr_size; | |
2983 | } | |
2984 | ||
2985 | #define f2fs_get_inode_mode(i) \ | |
2986 | ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ | |
2987 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) | |
2988 | ||
2989 | #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ | |
2990 | (offsetof(struct f2fs_inode, i_extra_end) - \ | |
2991 | offsetof(struct f2fs_inode, i_extra_isize)) \ | |
2992 | ||
2993 | #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) | |
2994 | #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ | |
2995 | ((offsetof(typeof(*(f2fs_inode)), field) + \ | |
2996 | sizeof((f2fs_inode)->field)) \ | |
2997 | <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ | |
2998 | ||
2999 | static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) | |
3000 | { | |
3001 | int i; | |
3002 | ||
3003 | spin_lock(&sbi->iostat_lock); | |
3004 | for (i = 0; i < NR_IO_TYPE; i++) | |
3005 | sbi->write_iostat[i] = 0; | |
3006 | spin_unlock(&sbi->iostat_lock); | |
3007 | } | |
3008 | ||
3009 | static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, | |
3010 | enum iostat_type type, unsigned long long io_bytes) | |
3011 | { | |
3012 | if (!sbi->iostat_enable) | |
3013 | return; | |
3014 | spin_lock(&sbi->iostat_lock); | |
3015 | sbi->write_iostat[type] += io_bytes; | |
3016 | ||
3017 | if (type == APP_WRITE_IO || type == APP_DIRECT_IO) | |
3018 | sbi->write_iostat[APP_BUFFERED_IO] = | |
3019 | sbi->write_iostat[APP_WRITE_IO] - | |
3020 | sbi->write_iostat[APP_DIRECT_IO]; | |
3021 | spin_unlock(&sbi->iostat_lock); | |
3022 | } | |
3023 | ||
3024 | #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) | |
3025 | ||
3026 | #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META) | |
3027 | ||
3028 | bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, | |
3029 | block_t blkaddr, int type); | |
3030 | static inline void verify_blkaddr(struct f2fs_sb_info *sbi, | |
3031 | block_t blkaddr, int type) | |
3032 | { | |
3033 | if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { | |
3034 | f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.", | |
3035 | blkaddr, type); | |
3036 | f2fs_bug_on(sbi, 1); | |
3037 | } | |
3038 | } | |
3039 | ||
3040 | static inline bool __is_valid_data_blkaddr(block_t blkaddr) | |
3041 | { | |
3042 | if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR || | |
3043 | blkaddr == COMPRESS_ADDR) | |
3044 | return false; | |
3045 | return true; | |
3046 | } | |
3047 | ||
3048 | static inline void f2fs_set_page_private(struct page *page, | |
3049 | unsigned long data) | |
3050 | { | |
3051 | if (PagePrivate(page)) | |
3052 | return; | |
3053 | ||
3054 | get_page(page); | |
3055 | SetPagePrivate(page); | |
3056 | set_page_private(page, data); | |
3057 | } | |
3058 | ||
3059 | static inline void f2fs_clear_page_private(struct page *page) | |
3060 | { | |
3061 | if (!PagePrivate(page)) | |
3062 | return; | |
3063 | ||
3064 | set_page_private(page, 0); | |
3065 | ClearPagePrivate(page); | |
3066 | f2fs_put_page(page, 0); | |
3067 | } | |
3068 | ||
3069 | /* | |
3070 | * file.c | |
3071 | */ | |
3072 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); | |
3073 | void f2fs_truncate_data_blocks(struct dnode_of_data *dn); | |
3074 | int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock); | |
3075 | int f2fs_truncate(struct inode *inode); | |
3076 | int f2fs_getattr(const struct path *path, struct kstat *stat, | |
3077 | u32 request_mask, unsigned int flags); | |
3078 | int f2fs_setattr(struct dentry *dentry, struct iattr *attr); | |
3079 | int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); | |
3080 | void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); | |
3081 | int f2fs_precache_extents(struct inode *inode); | |
3082 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); | |
3083 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
3084 | int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); | |
3085 | int f2fs_pin_file_control(struct inode *inode, bool inc); | |
3086 | ||
3087 | /* | |
3088 | * inode.c | |
3089 | */ | |
3090 | void f2fs_set_inode_flags(struct inode *inode); | |
3091 | bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); | |
3092 | void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); | |
3093 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); | |
3094 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); | |
3095 | int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); | |
3096 | void f2fs_update_inode(struct inode *inode, struct page *node_page); | |
3097 | void f2fs_update_inode_page(struct inode *inode); | |
3098 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); | |
3099 | void f2fs_evict_inode(struct inode *inode); | |
3100 | void f2fs_handle_failed_inode(struct inode *inode); | |
3101 | ||
3102 | /* | |
3103 | * namei.c | |
3104 | */ | |
3105 | int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, | |
3106 | bool hot, bool set); | |
3107 | struct dentry *f2fs_get_parent(struct dentry *child); | |
3108 | ||
3109 | extern int f2fs_ci_compare(const struct inode *parent, | |
3110 | const struct qstr *name, | |
3111 | const struct qstr *entry, | |
3112 | bool quick); | |
3113 | ||
3114 | /* | |
3115 | * dir.c | |
3116 | */ | |
3117 | unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); | |
3118 | struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname, | |
3119 | f2fs_hash_t namehash, int *max_slots, | |
3120 | struct f2fs_dentry_ptr *d); | |
3121 | int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, | |
3122 | unsigned int start_pos, struct fscrypt_str *fstr); | |
3123 | void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, | |
3124 | struct f2fs_dentry_ptr *d); | |
3125 | struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, | |
3126 | const struct qstr *new_name, | |
3127 | const struct qstr *orig_name, struct page *dpage); | |
3128 | void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, | |
3129 | unsigned int current_depth); | |
3130 | int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); | |
3131 | void f2fs_drop_nlink(struct inode *dir, struct inode *inode); | |
3132 | struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, | |
3133 | struct fscrypt_name *fname, struct page **res_page); | |
3134 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, | |
3135 | const struct qstr *child, struct page **res_page); | |
3136 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); | |
3137 | ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, | |
3138 | struct page **page); | |
3139 | void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, | |
3140 | struct page *page, struct inode *inode); | |
3141 | bool f2fs_has_enough_room(struct inode *dir, struct page *ipage, | |
3142 | struct fscrypt_name *fname); | |
3143 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, | |
3144 | const struct qstr *name, f2fs_hash_t name_hash, | |
3145 | unsigned int bit_pos); | |
3146 | int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, | |
3147 | const struct qstr *orig_name, | |
3148 | struct inode *inode, nid_t ino, umode_t mode); | |
3149 | int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname, | |
3150 | struct inode *inode, nid_t ino, umode_t mode); | |
3151 | int f2fs_do_add_link(struct inode *dir, const struct qstr *name, | |
3152 | struct inode *inode, nid_t ino, umode_t mode); | |
3153 | void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, | |
3154 | struct inode *dir, struct inode *inode); | |
3155 | int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); | |
3156 | bool f2fs_empty_dir(struct inode *dir); | |
3157 | ||
3158 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) | |
3159 | { | |
3160 | return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, | |
3161 | inode, inode->i_ino, inode->i_mode); | |
3162 | } | |
3163 | ||
3164 | /* | |
3165 | * super.c | |
3166 | */ | |
3167 | int f2fs_inode_dirtied(struct inode *inode, bool sync); | |
3168 | void f2fs_inode_synced(struct inode *inode); | |
3169 | int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); | |
3170 | int f2fs_quota_sync(struct super_block *sb, int type); | |
3171 | void f2fs_quota_off_umount(struct super_block *sb); | |
3172 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); | |
3173 | int f2fs_sync_fs(struct super_block *sb, int sync); | |
3174 | int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); | |
3175 | ||
3176 | /* | |
3177 | * hash.c | |
3178 | */ | |
3179 | f2fs_hash_t f2fs_dentry_hash(const struct inode *dir, | |
3180 | const struct qstr *name_info, struct fscrypt_name *fname); | |
3181 | ||
3182 | /* | |
3183 | * node.c | |
3184 | */ | |
3185 | struct dnode_of_data; | |
3186 | struct node_info; | |
3187 | ||
3188 | int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid); | |
3189 | bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type); | |
3190 | bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page); | |
3191 | void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi); | |
3192 | void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page); | |
3193 | void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi); | |
3194 | int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); | |
3195 | bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); | |
3196 | bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); | |
3197 | int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, | |
3198 | struct node_info *ni); | |
3199 | pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); | |
3200 | int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); | |
3201 | int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from); | |
3202 | int f2fs_truncate_xattr_node(struct inode *inode); | |
3203 | int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, | |
3204 | unsigned int seq_id); | |
3205 | int f2fs_remove_inode_page(struct inode *inode); | |
3206 | struct page *f2fs_new_inode_page(struct inode *inode); | |
3207 | struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs); | |
3208 | void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); | |
3209 | struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); | |
3210 | struct page *f2fs_get_node_page_ra(struct page *parent, int start); | |
3211 | int f2fs_move_node_page(struct page *node_page, int gc_type); | |
3212 | int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, | |
3213 | struct writeback_control *wbc, bool atomic, | |
3214 | unsigned int *seq_id); | |
3215 | int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, | |
3216 | struct writeback_control *wbc, | |
3217 | bool do_balance, enum iostat_type io_type); | |
3218 | int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); | |
3219 | bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); | |
3220 | void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); | |
3221 | void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); | |
3222 | int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); | |
3223 | void f2fs_recover_inline_xattr(struct inode *inode, struct page *page); | |
3224 | int f2fs_recover_xattr_data(struct inode *inode, struct page *page); | |
3225 | int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); | |
3226 | int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, | |
3227 | unsigned int segno, struct f2fs_summary_block *sum); | |
3228 | int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
3229 | int f2fs_build_node_manager(struct f2fs_sb_info *sbi); | |
3230 | void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi); | |
3231 | int __init f2fs_create_node_manager_caches(void); | |
3232 | void f2fs_destroy_node_manager_caches(void); | |
3233 | ||
3234 | /* | |
3235 | * segment.c | |
3236 | */ | |
3237 | bool f2fs_need_SSR(struct f2fs_sb_info *sbi); | |
3238 | void f2fs_register_inmem_page(struct inode *inode, struct page *page); | |
3239 | void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure); | |
3240 | void f2fs_drop_inmem_pages(struct inode *inode); | |
3241 | void f2fs_drop_inmem_page(struct inode *inode, struct page *page); | |
3242 | int f2fs_commit_inmem_pages(struct inode *inode); | |
3243 | void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); | |
3244 | void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg); | |
3245 | int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); | |
3246 | int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi); | |
3247 | int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); | |
3248 | void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); | |
3249 | void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); | |
3250 | bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); | |
3251 | void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi); | |
3252 | void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi); | |
3253 | bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi); | |
3254 | void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, | |
3255 | struct cp_control *cpc); | |
3256 | void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi); | |
3257 | block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi); | |
3258 | int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable); | |
3259 | void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi); | |
3260 | int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); | |
3261 | void allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type, | |
3262 | unsigned int start, unsigned int end); | |
3263 | void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi, int type); | |
3264 | int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); | |
3265 | bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, | |
3266 | struct cp_control *cpc); | |
3267 | struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); | |
3268 | void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, | |
3269 | block_t blk_addr); | |
3270 | void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, | |
3271 | enum iostat_type io_type); | |
3272 | void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); | |
3273 | void f2fs_outplace_write_data(struct dnode_of_data *dn, | |
3274 | struct f2fs_io_info *fio); | |
3275 | int f2fs_inplace_write_data(struct f2fs_io_info *fio); | |
3276 | void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, | |
3277 | block_t old_blkaddr, block_t new_blkaddr, | |
3278 | bool recover_curseg, bool recover_newaddr); | |
3279 | void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, | |
3280 | block_t old_addr, block_t new_addr, | |
3281 | unsigned char version, bool recover_curseg, | |
3282 | bool recover_newaddr); | |
3283 | void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, | |
3284 | block_t old_blkaddr, block_t *new_blkaddr, | |
3285 | struct f2fs_summary *sum, int type, | |
3286 | struct f2fs_io_info *fio, bool add_list); | |
3287 | void f2fs_wait_on_page_writeback(struct page *page, | |
3288 | enum page_type type, bool ordered, bool locked); | |
3289 | void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); | |
3290 | void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, | |
3291 | block_t len); | |
3292 | void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); | |
3293 | void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); | |
3294 | int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, | |
3295 | unsigned int val, int alloc); | |
3296 | void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
3297 | int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi); | |
3298 | int f2fs_check_write_pointer(struct f2fs_sb_info *sbi); | |
3299 | int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); | |
3300 | void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); | |
3301 | int __init f2fs_create_segment_manager_caches(void); | |
3302 | void f2fs_destroy_segment_manager_caches(void); | |
3303 | int f2fs_rw_hint_to_seg_type(enum rw_hint hint); | |
3304 | enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, | |
3305 | enum page_type type, enum temp_type temp); | |
3306 | ||
3307 | /* | |
3308 | * checkpoint.c | |
3309 | */ | |
3310 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); | |
3311 | struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
3312 | struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
3313 | struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index); | |
3314 | struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
3315 | bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, | |
3316 | block_t blkaddr, int type); | |
3317 | int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, | |
3318 | int type, bool sync); | |
3319 | void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); | |
3320 | long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, | |
3321 | long nr_to_write, enum iostat_type io_type); | |
3322 | void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); | |
3323 | void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); | |
3324 | void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); | |
3325 | bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); | |
3326 | void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, | |
3327 | unsigned int devidx, int type); | |
3328 | bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, | |
3329 | unsigned int devidx, int type); | |
3330 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); | |
3331 | int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); | |
3332 | void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); | |
3333 | void f2fs_add_orphan_inode(struct inode *inode); | |
3334 | void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); | |
3335 | int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); | |
3336 | int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); | |
3337 | void f2fs_update_dirty_page(struct inode *inode, struct page *page); | |
3338 | void f2fs_remove_dirty_inode(struct inode *inode); | |
3339 | int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); | |
3340 | void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type); | |
3341 | int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
3342 | void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); | |
3343 | int __init f2fs_create_checkpoint_caches(void); | |
3344 | void f2fs_destroy_checkpoint_caches(void); | |
3345 | ||
3346 | /* | |
3347 | * data.c | |
3348 | */ | |
3349 | int __init f2fs_init_bioset(void); | |
3350 | void f2fs_destroy_bioset(void); | |
3351 | struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool noio); | |
3352 | int f2fs_init_bio_entry_cache(void); | |
3353 | void f2fs_destroy_bio_entry_cache(void); | |
3354 | void f2fs_submit_bio(struct f2fs_sb_info *sbi, | |
3355 | struct bio *bio, enum page_type type); | |
3356 | void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); | |
3357 | void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, | |
3358 | struct inode *inode, struct page *page, | |
3359 | nid_t ino, enum page_type type); | |
3360 | void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi, | |
3361 | struct bio **bio, struct page *page); | |
3362 | void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); | |
3363 | int f2fs_submit_page_bio(struct f2fs_io_info *fio); | |
3364 | int f2fs_merge_page_bio(struct f2fs_io_info *fio); | |
3365 | void f2fs_submit_page_write(struct f2fs_io_info *fio); | |
3366 | struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, | |
3367 | block_t blk_addr, struct bio *bio); | |
3368 | int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); | |
3369 | void f2fs_set_data_blkaddr(struct dnode_of_data *dn); | |
3370 | void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); | |
3371 | int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); | |
3372 | int f2fs_reserve_new_block(struct dnode_of_data *dn); | |
3373 | int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); | |
3374 | int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); | |
3375 | int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); | |
3376 | int f2fs_mpage_readpages(struct address_space *mapping, | |
3377 | struct list_head *pages, struct page *page, | |
3378 | unsigned nr_pages, bool is_readahead); | |
3379 | struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, | |
3380 | int op_flags, bool for_write); | |
3381 | struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); | |
3382 | struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, | |
3383 | bool for_write); | |
3384 | struct page *f2fs_get_new_data_page(struct inode *inode, | |
3385 | struct page *ipage, pgoff_t index, bool new_i_size); | |
3386 | int f2fs_do_write_data_page(struct f2fs_io_info *fio); | |
3387 | void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); | |
3388 | int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, | |
3389 | int create, int flag); | |
3390 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, | |
3391 | u64 start, u64 len); | |
3392 | int f2fs_encrypt_one_page(struct f2fs_io_info *fio); | |
3393 | bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); | |
3394 | bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); | |
3395 | int f2fs_write_single_data_page(struct page *page, int *submitted, | |
3396 | struct bio **bio, sector_t *last_block, | |
3397 | struct writeback_control *wbc, | |
3398 | enum iostat_type io_type, | |
3399 | int compr_blocks); | |
3400 | void f2fs_invalidate_page(struct page *page, unsigned int offset, | |
3401 | unsigned int length); | |
3402 | int f2fs_release_page(struct page *page, gfp_t wait); | |
3403 | #ifdef CONFIG_MIGRATION | |
3404 | int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, | |
3405 | struct page *page, enum migrate_mode mode); | |
3406 | #endif | |
3407 | bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); | |
3408 | void f2fs_clear_page_cache_dirty_tag(struct page *page); | |
3409 | int f2fs_init_post_read_processing(void); | |
3410 | void f2fs_destroy_post_read_processing(void); | |
3411 | int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi); | |
3412 | void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi); | |
3413 | ||
3414 | /* | |
3415 | * gc.c | |
3416 | */ | |
3417 | int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); | |
3418 | void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); | |
3419 | block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); | |
3420 | int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, | |
3421 | unsigned int segno); | |
3422 | void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); | |
3423 | int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count); | |
3424 | ||
3425 | /* | |
3426 | * recovery.c | |
3427 | */ | |
3428 | int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); | |
3429 | bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); | |
3430 | ||
3431 | /* | |
3432 | * debug.c | |
3433 | */ | |
3434 | #ifdef CONFIG_F2FS_STAT_FS | |
3435 | struct f2fs_stat_info { | |
3436 | struct list_head stat_list; | |
3437 | struct f2fs_sb_info *sbi; | |
3438 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; | |
3439 | int main_area_segs, main_area_sections, main_area_zones; | |
3440 | unsigned long long hit_largest, hit_cached, hit_rbtree; | |
3441 | unsigned long long hit_total, total_ext; | |
3442 | int ext_tree, zombie_tree, ext_node; | |
3443 | int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; | |
3444 | int ndirty_data, ndirty_qdata; | |
3445 | int inmem_pages; | |
3446 | unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; | |
3447 | int nats, dirty_nats, sits, dirty_sits; | |
3448 | int free_nids, avail_nids, alloc_nids; | |
3449 | int total_count, utilization; | |
3450 | int bg_gc, nr_wb_cp_data, nr_wb_data; | |
3451 | int nr_rd_data, nr_rd_node, nr_rd_meta; | |
3452 | int nr_dio_read, nr_dio_write; | |
3453 | unsigned int io_skip_bggc, other_skip_bggc; | |
3454 | int nr_flushing, nr_flushed, flush_list_empty; | |
3455 | int nr_discarding, nr_discarded; | |
3456 | int nr_discard_cmd; | |
3457 | unsigned int undiscard_blks; | |
3458 | int inline_xattr, inline_inode, inline_dir, append, update, orphans; | |
3459 | int compr_inode, compr_blocks; | |
3460 | int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; | |
3461 | unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; | |
3462 | unsigned int bimodal, avg_vblocks; | |
3463 | int util_free, util_valid, util_invalid; | |
3464 | int rsvd_segs, overp_segs; | |
3465 | int dirty_count, node_pages, meta_pages; | |
3466 | int prefree_count, call_count, cp_count, bg_cp_count; | |
3467 | int tot_segs, node_segs, data_segs, free_segs, free_secs; | |
3468 | int bg_node_segs, bg_data_segs; | |
3469 | int tot_blks, data_blks, node_blks; | |
3470 | int bg_data_blks, bg_node_blks; | |
3471 | unsigned long long skipped_atomic_files[2]; | |
3472 | int curseg[NR_CURSEG_TYPE]; | |
3473 | int cursec[NR_CURSEG_TYPE]; | |
3474 | int curzone[NR_CURSEG_TYPE]; | |
3475 | ||
3476 | unsigned int meta_count[META_MAX]; | |
3477 | unsigned int segment_count[2]; | |
3478 | unsigned int block_count[2]; | |
3479 | unsigned int inplace_count; | |
3480 | unsigned long long base_mem, cache_mem, page_mem; | |
3481 | }; | |
3482 | ||
3483 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) | |
3484 | { | |
3485 | return (struct f2fs_stat_info *)sbi->stat_info; | |
3486 | } | |
3487 | ||
3488 | #define stat_inc_cp_count(si) ((si)->cp_count++) | |
3489 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) | |
3490 | #define stat_inc_call_count(si) ((si)->call_count++) | |
3491 | #define stat_inc_bggc_count(si) ((si)->bg_gc++) | |
3492 | #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) | |
3493 | #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) | |
3494 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) | |
3495 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) | |
3496 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) | |
3497 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
3498 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
3499 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
3500 | #define stat_inc_inline_xattr(inode) \ | |
3501 | do { \ | |
3502 | if (f2fs_has_inline_xattr(inode)) \ | |
3503 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
3504 | } while (0) | |
3505 | #define stat_dec_inline_xattr(inode) \ | |
3506 | do { \ | |
3507 | if (f2fs_has_inline_xattr(inode)) \ | |
3508 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
3509 | } while (0) | |
3510 | #define stat_inc_inline_inode(inode) \ | |
3511 | do { \ | |
3512 | if (f2fs_has_inline_data(inode)) \ | |
3513 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ | |
3514 | } while (0) | |
3515 | #define stat_dec_inline_inode(inode) \ | |
3516 | do { \ | |
3517 | if (f2fs_has_inline_data(inode)) \ | |
3518 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ | |
3519 | } while (0) | |
3520 | #define stat_inc_inline_dir(inode) \ | |
3521 | do { \ | |
3522 | if (f2fs_has_inline_dentry(inode)) \ | |
3523 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ | |
3524 | } while (0) | |
3525 | #define stat_dec_inline_dir(inode) \ | |
3526 | do { \ | |
3527 | if (f2fs_has_inline_dentry(inode)) \ | |
3528 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ | |
3529 | } while (0) | |
3530 | #define stat_inc_compr_inode(inode) \ | |
3531 | do { \ | |
3532 | if (f2fs_compressed_file(inode)) \ | |
3533 | (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \ | |
3534 | } while (0) | |
3535 | #define stat_dec_compr_inode(inode) \ | |
3536 | do { \ | |
3537 | if (f2fs_compressed_file(inode)) \ | |
3538 | (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \ | |
3539 | } while (0) | |
3540 | #define stat_add_compr_blocks(inode, blocks) \ | |
3541 | (atomic_add(blocks, &F2FS_I_SB(inode)->compr_blocks)) | |
3542 | #define stat_sub_compr_blocks(inode, blocks) \ | |
3543 | (atomic_sub(blocks, &F2FS_I_SB(inode)->compr_blocks)) | |
3544 | #define stat_inc_meta_count(sbi, blkaddr) \ | |
3545 | do { \ | |
3546 | if (blkaddr < SIT_I(sbi)->sit_base_addr) \ | |
3547 | atomic_inc(&(sbi)->meta_count[META_CP]); \ | |
3548 | else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ | |
3549 | atomic_inc(&(sbi)->meta_count[META_SIT]); \ | |
3550 | else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ | |
3551 | atomic_inc(&(sbi)->meta_count[META_NAT]); \ | |
3552 | else if (blkaddr < SM_I(sbi)->main_blkaddr) \ | |
3553 | atomic_inc(&(sbi)->meta_count[META_SSA]); \ | |
3554 | } while (0) | |
3555 | #define stat_inc_seg_type(sbi, curseg) \ | |
3556 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
3557 | #define stat_inc_block_count(sbi, curseg) \ | |
3558 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
3559 | #define stat_inc_inplace_blocks(sbi) \ | |
3560 | (atomic_inc(&(sbi)->inplace_count)) | |
3561 | #define stat_update_max_atomic_write(inode) \ | |
3562 | do { \ | |
3563 | int cur = F2FS_I_SB(inode)->atomic_files; \ | |
3564 | int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ | |
3565 | if (cur > max) \ | |
3566 | atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ | |
3567 | } while (0) | |
3568 | #define stat_inc_volatile_write(inode) \ | |
3569 | (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) | |
3570 | #define stat_dec_volatile_write(inode) \ | |
3571 | (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) | |
3572 | #define stat_update_max_volatile_write(inode) \ | |
3573 | do { \ | |
3574 | int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ | |
3575 | int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ | |
3576 | if (cur > max) \ | |
3577 | atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ | |
3578 | } while (0) | |
3579 | #define stat_inc_seg_count(sbi, type, gc_type) \ | |
3580 | do { \ | |
3581 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ | |
3582 | si->tot_segs++; \ | |
3583 | if ((type) == SUM_TYPE_DATA) { \ | |
3584 | si->data_segs++; \ | |
3585 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ | |
3586 | } else { \ | |
3587 | si->node_segs++; \ | |
3588 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ | |
3589 | } \ | |
3590 | } while (0) | |
3591 | ||
3592 | #define stat_inc_tot_blk_count(si, blks) \ | |
3593 | ((si)->tot_blks += (blks)) | |
3594 | ||
3595 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ | |
3596 | do { \ | |
3597 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ | |
3598 | stat_inc_tot_blk_count(si, blks); \ | |
3599 | si->data_blks += (blks); \ | |
3600 | si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ | |
3601 | } while (0) | |
3602 | ||
3603 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ | |
3604 | do { \ | |
3605 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ | |
3606 | stat_inc_tot_blk_count(si, blks); \ | |
3607 | si->node_blks += (blks); \ | |
3608 | si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ | |
3609 | } while (0) | |
3610 | ||
3611 | int f2fs_build_stats(struct f2fs_sb_info *sbi); | |
3612 | void f2fs_destroy_stats(struct f2fs_sb_info *sbi); | |
3613 | void __init f2fs_create_root_stats(void); | |
3614 | void f2fs_destroy_root_stats(void); | |
3615 | void f2fs_update_sit_info(struct f2fs_sb_info *sbi); | |
3616 | #else | |
3617 | #define stat_inc_cp_count(si) do { } while (0) | |
3618 | #define stat_inc_bg_cp_count(si) do { } while (0) | |
3619 | #define stat_inc_call_count(si) do { } while (0) | |
3620 | #define stat_inc_bggc_count(si) do { } while (0) | |
3621 | #define stat_io_skip_bggc_count(sbi) do { } while (0) | |
3622 | #define stat_other_skip_bggc_count(sbi) do { } while (0) | |
3623 | #define stat_inc_dirty_inode(sbi, type) do { } while (0) | |
3624 | #define stat_dec_dirty_inode(sbi, type) do { } while (0) | |
3625 | #define stat_inc_total_hit(sbi) do { } while (0) | |
3626 | #define stat_inc_rbtree_node_hit(sbi) do { } while (0) | |
3627 | #define stat_inc_largest_node_hit(sbi) do { } while (0) | |
3628 | #define stat_inc_cached_node_hit(sbi) do { } while (0) | |
3629 | #define stat_inc_inline_xattr(inode) do { } while (0) | |
3630 | #define stat_dec_inline_xattr(inode) do { } while (0) | |
3631 | #define stat_inc_inline_inode(inode) do { } while (0) | |
3632 | #define stat_dec_inline_inode(inode) do { } while (0) | |
3633 | #define stat_inc_inline_dir(inode) do { } while (0) | |
3634 | #define stat_dec_inline_dir(inode) do { } while (0) | |
3635 | #define stat_inc_compr_inode(inode) do { } while (0) | |
3636 | #define stat_dec_compr_inode(inode) do { } while (0) | |
3637 | #define stat_add_compr_blocks(inode, blocks) do { } while (0) | |
3638 | #define stat_sub_compr_blocks(inode, blocks) do { } while (0) | |
3639 | #define stat_inc_atomic_write(inode) do { } while (0) | |
3640 | #define stat_dec_atomic_write(inode) do { } while (0) | |
3641 | #define stat_update_max_atomic_write(inode) do { } while (0) | |
3642 | #define stat_inc_volatile_write(inode) do { } while (0) | |
3643 | #define stat_dec_volatile_write(inode) do { } while (0) | |
3644 | #define stat_update_max_volatile_write(inode) do { } while (0) | |
3645 | #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) | |
3646 | #define stat_inc_seg_type(sbi, curseg) do { } while (0) | |
3647 | #define stat_inc_block_count(sbi, curseg) do { } while (0) | |
3648 | #define stat_inc_inplace_blocks(sbi) do { } while (0) | |
3649 | #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) | |
3650 | #define stat_inc_tot_blk_count(si, blks) do { } while (0) | |
3651 | #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) | |
3652 | #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) | |
3653 | ||
3654 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
3655 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
3656 | static inline void __init f2fs_create_root_stats(void) { } | |
3657 | static inline void f2fs_destroy_root_stats(void) { } | |
3658 | static inline void update_sit_info(struct f2fs_sb_info *sbi) {} | |
3659 | #endif | |
3660 | ||
3661 | extern const struct file_operations f2fs_dir_operations; | |
3662 | #ifdef CONFIG_UNICODE | |
3663 | extern const struct dentry_operations f2fs_dentry_ops; | |
3664 | #endif | |
3665 | extern const struct file_operations f2fs_file_operations; | |
3666 | extern const struct inode_operations f2fs_file_inode_operations; | |
3667 | extern const struct address_space_operations f2fs_dblock_aops; | |
3668 | extern const struct address_space_operations f2fs_node_aops; | |
3669 | extern const struct address_space_operations f2fs_meta_aops; | |
3670 | extern const struct inode_operations f2fs_dir_inode_operations; | |
3671 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
3672 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; | |
3673 | extern const struct inode_operations f2fs_special_inode_operations; | |
3674 | extern struct kmem_cache *f2fs_inode_entry_slab; | |
3675 | ||
3676 | /* | |
3677 | * inline.c | |
3678 | */ | |
3679 | bool f2fs_may_inline_data(struct inode *inode); | |
3680 | bool f2fs_may_inline_dentry(struct inode *inode); | |
3681 | void f2fs_do_read_inline_data(struct page *page, struct page *ipage); | |
3682 | void f2fs_truncate_inline_inode(struct inode *inode, | |
3683 | struct page *ipage, u64 from); | |
3684 | int f2fs_read_inline_data(struct inode *inode, struct page *page); | |
3685 | int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); | |
3686 | int f2fs_convert_inline_inode(struct inode *inode); | |
3687 | int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry); | |
3688 | int f2fs_write_inline_data(struct inode *inode, struct page *page); | |
3689 | bool f2fs_recover_inline_data(struct inode *inode, struct page *npage); | |
3690 | struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, | |
3691 | struct fscrypt_name *fname, struct page **res_page); | |
3692 | int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, | |
3693 | struct page *ipage); | |
3694 | int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, | |
3695 | const struct qstr *orig_name, | |
3696 | struct inode *inode, nid_t ino, umode_t mode); | |
3697 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, | |
3698 | struct page *page, struct inode *dir, | |
3699 | struct inode *inode); | |
3700 | bool f2fs_empty_inline_dir(struct inode *dir); | |
3701 | int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, | |
3702 | struct fscrypt_str *fstr); | |
3703 | int f2fs_inline_data_fiemap(struct inode *inode, | |
3704 | struct fiemap_extent_info *fieinfo, | |
3705 | __u64 start, __u64 len); | |
3706 | ||
3707 | /* | |
3708 | * shrinker.c | |
3709 | */ | |
3710 | unsigned long f2fs_shrink_count(struct shrinker *shrink, | |
3711 | struct shrink_control *sc); | |
3712 | unsigned long f2fs_shrink_scan(struct shrinker *shrink, | |
3713 | struct shrink_control *sc); | |
3714 | void f2fs_join_shrinker(struct f2fs_sb_info *sbi); | |
3715 | void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); | |
3716 | ||
3717 | /* | |
3718 | * extent_cache.c | |
3719 | */ | |
3720 | struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, | |
3721 | struct rb_entry *cached_re, unsigned int ofs); | |
3722 | struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, | |
3723 | struct rb_root_cached *root, | |
3724 | struct rb_node **parent, | |
3725 | unsigned int ofs, bool *leftmost); | |
3726 | struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, | |
3727 | struct rb_entry *cached_re, unsigned int ofs, | |
3728 | struct rb_entry **prev_entry, struct rb_entry **next_entry, | |
3729 | struct rb_node ***insert_p, struct rb_node **insert_parent, | |
3730 | bool force, bool *leftmost); | |
3731 | bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, | |
3732 | struct rb_root_cached *root); | |
3733 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); | |
3734 | bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext); | |
3735 | void f2fs_drop_extent_tree(struct inode *inode); | |
3736 | unsigned int f2fs_destroy_extent_node(struct inode *inode); | |
3737 | void f2fs_destroy_extent_tree(struct inode *inode); | |
3738 | bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, | |
3739 | struct extent_info *ei); | |
3740 | void f2fs_update_extent_cache(struct dnode_of_data *dn); | |
3741 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, | |
3742 | pgoff_t fofs, block_t blkaddr, unsigned int len); | |
3743 | void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); | |
3744 | int __init f2fs_create_extent_cache(void); | |
3745 | void f2fs_destroy_extent_cache(void); | |
3746 | ||
3747 | /* | |
3748 | * sysfs.c | |
3749 | */ | |
3750 | int __init f2fs_init_sysfs(void); | |
3751 | void f2fs_exit_sysfs(void); | |
3752 | int f2fs_register_sysfs(struct f2fs_sb_info *sbi); | |
3753 | void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); | |
3754 | ||
3755 | /* verity.c */ | |
3756 | extern const struct fsverity_operations f2fs_verityops; | |
3757 | ||
3758 | /* | |
3759 | * crypto support | |
3760 | */ | |
3761 | static inline bool f2fs_encrypted_file(struct inode *inode) | |
3762 | { | |
3763 | return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode); | |
3764 | } | |
3765 | ||
3766 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
3767 | { | |
3768 | #ifdef CONFIG_FS_ENCRYPTION | |
3769 | file_set_encrypt(inode); | |
3770 | f2fs_set_inode_flags(inode); | |
3771 | #endif | |
3772 | } | |
3773 | ||
3774 | /* | |
3775 | * Returns true if the reads of the inode's data need to undergo some | |
3776 | * postprocessing step, like decryption or authenticity verification. | |
3777 | */ | |
3778 | static inline bool f2fs_post_read_required(struct inode *inode) | |
3779 | { | |
3780 | return f2fs_encrypted_file(inode) || fsverity_active(inode) || | |
3781 | f2fs_compressed_file(inode); | |
3782 | } | |
3783 | ||
3784 | /* | |
3785 | * compress.c | |
3786 | */ | |
3787 | #ifdef CONFIG_F2FS_FS_COMPRESSION | |
3788 | bool f2fs_is_compressed_page(struct page *page); | |
3789 | struct page *f2fs_compress_control_page(struct page *page); | |
3790 | int f2fs_prepare_compress_overwrite(struct inode *inode, | |
3791 | struct page **pagep, pgoff_t index, void **fsdata); | |
3792 | bool f2fs_compress_write_end(struct inode *inode, void *fsdata, | |
3793 | pgoff_t index, unsigned copied); | |
3794 | void f2fs_compress_write_end_io(struct bio *bio, struct page *page); | |
3795 | bool f2fs_is_compress_backend_ready(struct inode *inode); | |
3796 | void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity); | |
3797 | bool f2fs_cluster_is_empty(struct compress_ctx *cc); | |
3798 | bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index); | |
3799 | void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page); | |
3800 | int f2fs_write_multi_pages(struct compress_ctx *cc, | |
3801 | int *submitted, | |
3802 | struct writeback_control *wbc, | |
3803 | enum iostat_type io_type); | |
3804 | int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index); | |
3805 | int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret, | |
3806 | unsigned nr_pages, sector_t *last_block_in_bio, | |
3807 | bool is_readahead, bool for_write); | |
3808 | struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc); | |
3809 | void f2fs_free_dic(struct decompress_io_ctx *dic); | |
3810 | void f2fs_decompress_end_io(struct page **rpages, | |
3811 | unsigned int cluster_size, bool err, bool verity); | |
3812 | int f2fs_init_compress_ctx(struct compress_ctx *cc); | |
3813 | void f2fs_destroy_compress_ctx(struct compress_ctx *cc); | |
3814 | void f2fs_init_compress_info(struct f2fs_sb_info *sbi); | |
3815 | #else | |
3816 | static inline bool f2fs_is_compressed_page(struct page *page) { return false; } | |
3817 | static inline bool f2fs_is_compress_backend_ready(struct inode *inode) | |
3818 | { | |
3819 | if (!f2fs_compressed_file(inode)) | |
3820 | return true; | |
3821 | /* not support compression */ | |
3822 | return false; | |
3823 | } | |
3824 | static inline struct page *f2fs_compress_control_page(struct page *page) | |
3825 | { | |
3826 | WARN_ON_ONCE(1); | |
3827 | return ERR_PTR(-EINVAL); | |
3828 | } | |
3829 | #endif | |
3830 | ||
3831 | static inline void set_compress_context(struct inode *inode) | |
3832 | { | |
3833 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3834 | ||
3835 | F2FS_I(inode)->i_compress_algorithm = | |
3836 | F2FS_OPTION(sbi).compress_algorithm; | |
3837 | F2FS_I(inode)->i_log_cluster_size = | |
3838 | F2FS_OPTION(sbi).compress_log_size; | |
3839 | F2FS_I(inode)->i_cluster_size = | |
3840 | 1 << F2FS_I(inode)->i_log_cluster_size; | |
3841 | F2FS_I(inode)->i_flags |= F2FS_COMPR_FL; | |
3842 | set_inode_flag(inode, FI_COMPRESSED_FILE); | |
3843 | stat_inc_compr_inode(inode); | |
3844 | f2fs_mark_inode_dirty_sync(inode, true); | |
3845 | } | |
3846 | ||
3847 | static inline u64 f2fs_disable_compressed_file(struct inode *inode) | |
3848 | { | |
3849 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
3850 | ||
3851 | if (!f2fs_compressed_file(inode)) | |
3852 | return 0; | |
3853 | if (S_ISREG(inode->i_mode)) { | |
3854 | if (get_dirty_pages(inode)) | |
3855 | return 1; | |
3856 | if (fi->i_compr_blocks) | |
3857 | return fi->i_compr_blocks; | |
3858 | } | |
3859 | ||
3860 | fi->i_flags &= ~F2FS_COMPR_FL; | |
3861 | stat_dec_compr_inode(inode); | |
3862 | clear_inode_flag(inode, FI_COMPRESSED_FILE); | |
3863 | f2fs_mark_inode_dirty_sync(inode, true); | |
3864 | return 0; | |
3865 | } | |
3866 | ||
3867 | #define F2FS_FEATURE_FUNCS(name, flagname) \ | |
3868 | static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ | |
3869 | { \ | |
3870 | return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ | |
3871 | } | |
3872 | ||
3873 | F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); | |
3874 | F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); | |
3875 | F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); | |
3876 | F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); | |
3877 | F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); | |
3878 | F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); | |
3879 | F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); | |
3880 | F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); | |
3881 | F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); | |
3882 | F2FS_FEATURE_FUNCS(verity, VERITY); | |
3883 | F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); | |
3884 | F2FS_FEATURE_FUNCS(casefold, CASEFOLD); | |
3885 | F2FS_FEATURE_FUNCS(compression, COMPRESSION); | |
3886 | ||
3887 | #ifdef CONFIG_BLK_DEV_ZONED | |
3888 | static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi, | |
3889 | block_t blkaddr) | |
3890 | { | |
3891 | unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; | |
3892 | ||
3893 | return test_bit(zno, FDEV(devi).blkz_seq); | |
3894 | } | |
3895 | #endif | |
3896 | ||
3897 | static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) | |
3898 | { | |
3899 | return f2fs_sb_has_blkzoned(sbi); | |
3900 | } | |
3901 | ||
3902 | static inline bool f2fs_bdev_support_discard(struct block_device *bdev) | |
3903 | { | |
3904 | return blk_queue_discard(bdev_get_queue(bdev)) || | |
3905 | bdev_is_zoned(bdev); | |
3906 | } | |
3907 | ||
3908 | static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) | |
3909 | { | |
3910 | int i; | |
3911 | ||
3912 | if (!f2fs_is_multi_device(sbi)) | |
3913 | return f2fs_bdev_support_discard(sbi->sb->s_bdev); | |
3914 | ||
3915 | for (i = 0; i < sbi->s_ndevs; i++) | |
3916 | if (f2fs_bdev_support_discard(FDEV(i).bdev)) | |
3917 | return true; | |
3918 | return false; | |
3919 | } | |
3920 | ||
3921 | static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) | |
3922 | { | |
3923 | return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || | |
3924 | f2fs_hw_should_discard(sbi); | |
3925 | } | |
3926 | ||
3927 | static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi) | |
3928 | { | |
3929 | int i; | |
3930 | ||
3931 | if (!f2fs_is_multi_device(sbi)) | |
3932 | return bdev_read_only(sbi->sb->s_bdev); | |
3933 | ||
3934 | for (i = 0; i < sbi->s_ndevs; i++) | |
3935 | if (bdev_read_only(FDEV(i).bdev)) | |
3936 | return true; | |
3937 | return false; | |
3938 | } | |
3939 | ||
3940 | static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi) | |
3941 | { | |
3942 | return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS; | |
3943 | } | |
3944 | ||
3945 | static inline bool f2fs_may_encrypt(struct inode *dir, struct inode *inode) | |
3946 | { | |
3947 | #ifdef CONFIG_FS_ENCRYPTION | |
3948 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); | |
3949 | umode_t mode = inode->i_mode; | |
3950 | ||
3951 | /* | |
3952 | * If the directory encrypted or dummy encryption enabled, | |
3953 | * then we should encrypt the inode. | |
3954 | */ | |
3955 | if (IS_ENCRYPTED(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) | |
3956 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
3957 | #endif | |
3958 | return false; | |
3959 | } | |
3960 | ||
3961 | static inline bool f2fs_may_compress(struct inode *inode) | |
3962 | { | |
3963 | if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) || | |
3964 | f2fs_is_atomic_file(inode) || | |
3965 | f2fs_is_volatile_file(inode)) | |
3966 | return false; | |
3967 | return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode); | |
3968 | } | |
3969 | ||
3970 | static inline void f2fs_i_compr_blocks_update(struct inode *inode, | |
3971 | u64 blocks, bool add) | |
3972 | { | |
3973 | int diff = F2FS_I(inode)->i_cluster_size - blocks; | |
3974 | ||
3975 | if (add) { | |
3976 | F2FS_I(inode)->i_compr_blocks += diff; | |
3977 | stat_add_compr_blocks(inode, diff); | |
3978 | } else { | |
3979 | F2FS_I(inode)->i_compr_blocks -= diff; | |
3980 | stat_sub_compr_blocks(inode, diff); | |
3981 | } | |
3982 | f2fs_mark_inode_dirty_sync(inode, true); | |
3983 | } | |
3984 | ||
3985 | static inline int block_unaligned_IO(struct inode *inode, | |
3986 | struct kiocb *iocb, struct iov_iter *iter) | |
3987 | { | |
3988 | unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); | |
3989 | unsigned int blocksize_mask = (1 << i_blkbits) - 1; | |
3990 | loff_t offset = iocb->ki_pos; | |
3991 | unsigned long align = offset | iov_iter_alignment(iter); | |
3992 | ||
3993 | return align & blocksize_mask; | |
3994 | } | |
3995 | ||
3996 | static inline int allow_outplace_dio(struct inode *inode, | |
3997 | struct kiocb *iocb, struct iov_iter *iter) | |
3998 | { | |
3999 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4000 | int rw = iov_iter_rw(iter); | |
4001 | ||
4002 | return (f2fs_lfs_mode(sbi) && (rw == WRITE) && | |
4003 | !block_unaligned_IO(inode, iocb, iter)); | |
4004 | } | |
4005 | ||
4006 | static inline bool f2fs_force_buffered_io(struct inode *inode, | |
4007 | struct kiocb *iocb, struct iov_iter *iter) | |
4008 | { | |
4009 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4010 | int rw = iov_iter_rw(iter); | |
4011 | ||
4012 | if (f2fs_post_read_required(inode)) | |
4013 | return true; | |
4014 | if (f2fs_is_multi_device(sbi)) | |
4015 | return true; | |
4016 | if (f2fs_compressed_file(inode)) | |
4017 | return true; | |
4018 | /* | |
4019 | * for blkzoned device, fallback direct IO to buffered IO, so | |
4020 | * all IOs can be serialized by log-structured write. | |
4021 | */ | |
4022 | if (f2fs_sb_has_blkzoned(sbi)) | |
4023 | return true; | |
4024 | if (f2fs_lfs_mode(sbi) && (rw == WRITE)) { | |
4025 | if (block_unaligned_IO(inode, iocb, iter)) | |
4026 | return true; | |
4027 | if (F2FS_IO_ALIGNED(sbi)) | |
4028 | return true; | |
4029 | } | |
4030 | if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) && | |
4031 | !IS_SWAPFILE(inode)) | |
4032 | return true; | |
4033 | ||
4034 | return false; | |
4035 | } | |
4036 | ||
4037 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
4038 | extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, | |
4039 | unsigned int type); | |
4040 | #else | |
4041 | #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) | |
4042 | #endif | |
4043 | ||
4044 | static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) | |
4045 | { | |
4046 | #ifdef CONFIG_QUOTA | |
4047 | if (f2fs_sb_has_quota_ino(sbi)) | |
4048 | return true; | |
4049 | if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || | |
4050 | F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || | |
4051 | F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) | |
4052 | return true; | |
4053 | #endif | |
4054 | return false; | |
4055 | } | |
4056 | ||
4057 | #define EFSBADCRC EBADMSG /* Bad CRC detected */ | |
4058 | #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ | |
4059 | ||
4060 | #endif /* _LINUX_F2FS_H */ |