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0a8165d7 | 1 | /* |
39a53e0c JK |
2 | * fs/f2fs/f2fs.h |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #ifndef _LINUX_F2FS_H | |
12 | #define _LINUX_F2FS_H | |
13 | ||
14 | #include <linux/types.h> | |
15 | #include <linux/page-flags.h> | |
16 | #include <linux/buffer_head.h> | |
39a53e0c JK |
17 | #include <linux/slab.h> |
18 | #include <linux/crc32.h> | |
19 | #include <linux/magic.h> | |
c2d715d1 | 20 | #include <linux/kobject.h> |
7bd59381 | 21 | #include <linux/sched.h> |
39307a8e | 22 | #include <linux/vmalloc.h> |
740432f8 | 23 | #include <linux/bio.h> |
d0239e1b | 24 | #include <linux/blkdev.h> |
0b81d077 | 25 | #include <linux/fscrypto.h> |
43b6573b | 26 | #include <crypto/hash.h> |
39a53e0c | 27 | |
5d56b671 | 28 | #ifdef CONFIG_F2FS_CHECK_FS |
9850cf4a | 29 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) |
5d56b671 | 30 | #else |
9850cf4a JK |
31 | #define f2fs_bug_on(sbi, condition) \ |
32 | do { \ | |
33 | if (unlikely(condition)) { \ | |
34 | WARN_ON(1); \ | |
caf0047e | 35 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ |
9850cf4a JK |
36 | } \ |
37 | } while (0) | |
5d56b671 JK |
38 | #endif |
39 | ||
2c63fead JK |
40 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
41 | enum { | |
42 | FAULT_KMALLOC, | |
c41f3cc3 | 43 | FAULT_PAGE_ALLOC, |
2c63fead JK |
44 | FAULT_MAX, |
45 | }; | |
46 | ||
47 | extern u32 f2fs_fault_rate; | |
48 | extern atomic_t f2fs_ops; | |
49 | extern char *fault_name[FAULT_MAX]; | |
50 | ||
51 | static inline bool time_to_inject(int type) | |
52 | { | |
53 | atomic_inc(&f2fs_ops); | |
54 | if (f2fs_fault_rate && (atomic_read(&f2fs_ops) >= f2fs_fault_rate)) { | |
55 | atomic_set(&f2fs_ops, 0); | |
56 | printk("%sF2FS-fs : inject %s in %pF\n", | |
57 | KERN_INFO, | |
58 | fault_name[type], | |
59 | __builtin_return_address(0)); | |
60 | return true; | |
61 | } | |
62 | return false; | |
63 | } | |
64 | #endif | |
65 | ||
39a53e0c JK |
66 | /* |
67 | * For mount options | |
68 | */ | |
69 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
70 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
71 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
72 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
73 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
74 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
75 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 76 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 77 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
34d67deb CY |
78 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
79 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
80 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
d5053a34 | 81 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
89672159 | 82 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
6aefd93b | 83 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
343f40f0 | 84 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 |
73faec4d | 85 | #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 |
39a53e0c JK |
86 | |
87 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) | |
88 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) | |
89 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) | |
90 | ||
91 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
92 | typecheck(unsigned long long, b) && \ | |
93 | ((long long)((a) - (b)) > 0)) | |
94 | ||
a9841c4d JK |
95 | typedef u32 block_t; /* |
96 | * should not change u32, since it is the on-disk block | |
97 | * address format, __le32. | |
98 | */ | |
39a53e0c JK |
99 | typedef u32 nid_t; |
100 | ||
101 | struct f2fs_mount_info { | |
102 | unsigned int opt; | |
103 | }; | |
104 | ||
cde4de12 JK |
105 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
106 | ||
76f105a2 JK |
107 | #define F2FS_HAS_FEATURE(sb, mask) \ |
108 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) | |
109 | #define F2FS_SET_FEATURE(sb, mask) \ | |
110 | F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask) | |
111 | #define F2FS_CLEAR_FEATURE(sb, mask) \ | |
112 | F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) | |
113 | ||
39a53e0c JK |
114 | /* |
115 | * For checkpoint manager | |
116 | */ | |
117 | enum { | |
118 | NAT_BITMAP, | |
119 | SIT_BITMAP | |
120 | }; | |
121 | ||
75ab4cb8 JK |
122 | enum { |
123 | CP_UMOUNT, | |
119ee914 | 124 | CP_FASTBOOT, |
75ab4cb8 | 125 | CP_SYNC, |
10027551 | 126 | CP_RECOVERY, |
4b2fecc8 | 127 | CP_DISCARD, |
75ab4cb8 JK |
128 | }; |
129 | ||
bba681cb JK |
130 | #define DEF_BATCHED_TRIM_SECTIONS 32 |
131 | #define BATCHED_TRIM_SEGMENTS(sbi) \ | |
132 | (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) | |
a66cdd98 JK |
133 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
134 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
60b99b48 | 135 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
d0239e1b | 136 | #define DEF_IDLE_INTERVAL 120 /* 2 mins */ |
bba681cb | 137 | |
75ab4cb8 JK |
138 | struct cp_control { |
139 | int reason; | |
4b2fecc8 JK |
140 | __u64 trim_start; |
141 | __u64 trim_end; | |
142 | __u64 trim_minlen; | |
143 | __u64 trimmed; | |
75ab4cb8 JK |
144 | }; |
145 | ||
662befda | 146 | /* |
81c1a0f1 | 147 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
148 | */ |
149 | enum { | |
150 | META_CP, | |
151 | META_NAT, | |
81c1a0f1 | 152 | META_SIT, |
4c521f49 JK |
153 | META_SSA, |
154 | META_POR, | |
662befda CY |
155 | }; |
156 | ||
6451e041 JK |
157 | /* for the list of ino */ |
158 | enum { | |
159 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
160 | APPEND_INO, /* for append ino list */ |
161 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
162 | MAX_INO_ENTRY, /* max. list */ |
163 | }; | |
164 | ||
165 | struct ino_entry { | |
39a53e0c JK |
166 | struct list_head list; /* list head */ |
167 | nid_t ino; /* inode number */ | |
168 | }; | |
169 | ||
2710fd7e | 170 | /* for the list of inodes to be GCed */ |
06292073 | 171 | struct inode_entry { |
39a53e0c JK |
172 | struct list_head list; /* list head */ |
173 | struct inode *inode; /* vfs inode pointer */ | |
174 | }; | |
175 | ||
7fd9e544 JK |
176 | /* for the list of blockaddresses to be discarded */ |
177 | struct discard_entry { | |
178 | struct list_head list; /* list head */ | |
179 | block_t blkaddr; /* block address to be discarded */ | |
180 | int len; /* # of consecutive blocks of the discard */ | |
181 | }; | |
182 | ||
39a53e0c JK |
183 | /* for the list of fsync inodes, used only during recovery */ |
184 | struct fsync_inode_entry { | |
185 | struct list_head list; /* list head */ | |
186 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
187 | block_t blkaddr; /* block address locating the last fsync */ |
188 | block_t last_dentry; /* block address locating the last dentry */ | |
39a53e0c JK |
189 | }; |
190 | ||
dfc08a12 CY |
191 | #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats)) |
192 | #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits)) | |
39a53e0c | 193 | |
dfc08a12 CY |
194 | #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne) |
195 | #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid) | |
196 | #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se) | |
197 | #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno) | |
39a53e0c | 198 | |
dfc08a12 CY |
199 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
200 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) | |
309cc2b6 | 201 | |
dfc08a12 | 202 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 203 | { |
dfc08a12 CY |
204 | int before = nats_in_cursum(journal); |
205 | journal->n_nats = cpu_to_le16(before + i); | |
39a53e0c JK |
206 | return before; |
207 | } | |
208 | ||
dfc08a12 | 209 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 210 | { |
dfc08a12 CY |
211 | int before = sits_in_cursum(journal); |
212 | journal->n_sits = cpu_to_le16(before + i); | |
39a53e0c JK |
213 | return before; |
214 | } | |
215 | ||
dfc08a12 CY |
216 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
217 | int size, int type) | |
184a5cd2 CY |
218 | { |
219 | if (type == NAT_JOURNAL) | |
dfc08a12 CY |
220 | return size <= MAX_NAT_JENTRIES(journal); |
221 | return size <= MAX_SIT_JENTRIES(journal); | |
184a5cd2 CY |
222 | } |
223 | ||
e9750824 NJ |
224 | /* |
225 | * ioctl commands | |
226 | */ | |
88b88a66 JK |
227 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
228 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 229 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
230 | |
231 | #define F2FS_IOCTL_MAGIC 0xf5 | |
232 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
233 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 234 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
235 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
236 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
c1c1b583 | 237 | #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6) |
456b88e4 | 238 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
d323d005 | 239 | #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8) |
e9750824 | 240 | |
0b81d077 JK |
241 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
242 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY | |
243 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT | |
f424f664 | 244 | |
1abff93d JK |
245 | /* |
246 | * should be same as XFS_IOC_GOINGDOWN. | |
247 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
248 | */ | |
249 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
250 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
251 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
252 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
c912a829 | 253 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
1abff93d | 254 | |
e9750824 NJ |
255 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
256 | /* | |
257 | * ioctl commands in 32 bit emulation | |
258 | */ | |
04ef4b62 CY |
259 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
260 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
261 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION | |
e9750824 NJ |
262 | #endif |
263 | ||
d323d005 CY |
264 | struct f2fs_defragment { |
265 | u64 start; | |
266 | u64 len; | |
267 | }; | |
268 | ||
39a53e0c JK |
269 | /* |
270 | * For INODE and NODE manager | |
271 | */ | |
7b3cd7d6 JK |
272 | /* for directory operations */ |
273 | struct f2fs_dentry_ptr { | |
d8c6822a | 274 | struct inode *inode; |
7b3cd7d6 JK |
275 | const void *bitmap; |
276 | struct f2fs_dir_entry *dentry; | |
277 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
278 | int max; | |
279 | }; | |
280 | ||
d8c6822a JK |
281 | static inline void make_dentry_ptr(struct inode *inode, |
282 | struct f2fs_dentry_ptr *d, void *src, int type) | |
7b3cd7d6 | 283 | { |
d8c6822a JK |
284 | d->inode = inode; |
285 | ||
7b3cd7d6 JK |
286 | if (type == 1) { |
287 | struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src; | |
288 | d->max = NR_DENTRY_IN_BLOCK; | |
289 | d->bitmap = &t->dentry_bitmap; | |
290 | d->dentry = t->dentry; | |
291 | d->filename = t->filename; | |
292 | } else { | |
293 | struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src; | |
294 | d->max = NR_INLINE_DENTRY; | |
295 | d->bitmap = &t->dentry_bitmap; | |
296 | d->dentry = t->dentry; | |
297 | d->filename = t->filename; | |
298 | } | |
299 | } | |
300 | ||
dbe6a5ff JK |
301 | /* |
302 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
303 | * as its node offset to distinguish from index node blocks. | |
304 | * But some bits are used to mark the node block. | |
305 | */ | |
306 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
307 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
308 | enum { |
309 | ALLOC_NODE, /* allocate a new node page if needed */ | |
310 | LOOKUP_NODE, /* look up a node without readahead */ | |
311 | LOOKUP_NODE_RA, /* | |
312 | * look up a node with readahead called | |
4f4124d0 | 313 | * by get_data_block. |
39a53e0c | 314 | */ |
266e97a8 JK |
315 | }; |
316 | ||
a6db67f0 | 317 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
39a53e0c | 318 | |
817202d9 CY |
319 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
320 | ||
13054c54 CY |
321 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
322 | #define EXT_TREE_VEC_SIZE 64 | |
323 | ||
39a53e0c | 324 | /* for in-memory extent cache entry */ |
13054c54 CY |
325 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
326 | ||
327 | /* number of extent info in extent cache we try to shrink */ | |
328 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 329 | |
39a53e0c | 330 | struct extent_info { |
13054c54 CY |
331 | unsigned int fofs; /* start offset in a file */ |
332 | u32 blk; /* start block address of the extent */ | |
333 | unsigned int len; /* length of the extent */ | |
334 | }; | |
335 | ||
336 | struct extent_node { | |
337 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
338 | struct list_head list; /* node in global extent list of sbi */ | |
339 | struct extent_info ei; /* extent info */ | |
201ef5e0 | 340 | struct extent_tree *et; /* extent tree pointer */ |
13054c54 CY |
341 | }; |
342 | ||
343 | struct extent_tree { | |
344 | nid_t ino; /* inode number */ | |
345 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 346 | struct extent_node *cached_en; /* recently accessed extent node */ |
3e72f721 | 347 | struct extent_info largest; /* largested extent info */ |
137d09f0 | 348 | struct list_head list; /* to be used by sbi->zombie_list */ |
13054c54 | 349 | rwlock_t lock; /* protect extent info rb-tree */ |
68e35385 | 350 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
39a53e0c JK |
351 | }; |
352 | ||
003a3e1d JK |
353 | /* |
354 | * This structure is taken from ext4_map_blocks. | |
355 | * | |
356 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
357 | */ | |
358 | #define F2FS_MAP_NEW (1 << BH_New) | |
359 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
7f63eb77 JK |
360 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
361 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
362 | F2FS_MAP_UNWRITTEN) | |
003a3e1d JK |
363 | |
364 | struct f2fs_map_blocks { | |
365 | block_t m_pblk; | |
366 | block_t m_lblk; | |
367 | unsigned int m_len; | |
368 | unsigned int m_flags; | |
da85985c | 369 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
003a3e1d JK |
370 | }; |
371 | ||
e2b4e2bc CY |
372 | /* for flag in get_data_block */ |
373 | #define F2FS_GET_BLOCK_READ 0 | |
374 | #define F2FS_GET_BLOCK_DIO 1 | |
375 | #define F2FS_GET_BLOCK_FIEMAP 2 | |
376 | #define F2FS_GET_BLOCK_BMAP 3 | |
b439b103 | 377 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
24b84912 | 378 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
e2b4e2bc | 379 | |
39a53e0c JK |
380 | /* |
381 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
382 | */ | |
383 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 384 | #define FADVISE_LOST_PINO_BIT 0x02 |
cde4de12 | 385 | #define FADVISE_ENCRYPT_BIT 0x04 |
e7d55452 | 386 | #define FADVISE_ENC_NAME_BIT 0x08 |
39a53e0c | 387 | |
b5492af7 JK |
388 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
389 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
390 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
391 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
392 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
393 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
cde4de12 JK |
394 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
395 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
396 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
e7d55452 JK |
397 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
398 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
cde4de12 | 399 | |
ab9fa662 JK |
400 | #define DEF_DIR_LEVEL 0 |
401 | ||
39a53e0c JK |
402 | struct f2fs_inode_info { |
403 | struct inode vfs_inode; /* serve a vfs inode */ | |
404 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
405 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 406 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 407 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 408 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
409 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
410 | ||
411 | /* Use below internally in f2fs*/ | |
412 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 413 | struct rw_semaphore i_sem; /* protect fi info */ |
a7ffdbe2 | 414 | atomic_t dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
415 | f2fs_hash_t chash; /* hash value of given file name */ |
416 | unsigned int clevel; /* maximum level of given file name */ | |
417 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
e518ff81 | 418 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
88b88a66 | 419 | |
2710fd7e | 420 | struct list_head dirty_list; /* linked in global dirty list */ |
88b88a66 JK |
421 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
422 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
3e72f721 | 423 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
39a53e0c JK |
424 | }; |
425 | ||
426 | static inline void get_extent_info(struct extent_info *ext, | |
427 | struct f2fs_extent i_ext) | |
428 | { | |
39a53e0c | 429 | ext->fofs = le32_to_cpu(i_ext.fofs); |
4d0b0bd4 | 430 | ext->blk = le32_to_cpu(i_ext.blk); |
39a53e0c | 431 | ext->len = le32_to_cpu(i_ext.len); |
39a53e0c JK |
432 | } |
433 | ||
434 | static inline void set_raw_extent(struct extent_info *ext, | |
435 | struct f2fs_extent *i_ext) | |
436 | { | |
39a53e0c | 437 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 438 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 439 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
440 | } |
441 | ||
429511cd CY |
442 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
443 | u32 blk, unsigned int len) | |
444 | { | |
445 | ei->fofs = fofs; | |
446 | ei->blk = blk; | |
447 | ei->len = len; | |
448 | } | |
449 | ||
0bdee482 CY |
450 | static inline bool __is_extent_same(struct extent_info *ei1, |
451 | struct extent_info *ei2) | |
452 | { | |
453 | return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && | |
454 | ei1->len == ei2->len); | |
455 | } | |
456 | ||
429511cd CY |
457 | static inline bool __is_extent_mergeable(struct extent_info *back, |
458 | struct extent_info *front) | |
459 | { | |
460 | return (back->fofs + back->len == front->fofs && | |
461 | back->blk + back->len == front->blk); | |
462 | } | |
463 | ||
464 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
465 | struct extent_info *back) | |
466 | { | |
467 | return __is_extent_mergeable(back, cur); | |
468 | } | |
469 | ||
470 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
471 | struct extent_info *front) | |
472 | { | |
473 | return __is_extent_mergeable(cur, front); | |
474 | } | |
475 | ||
4abd3f5a CY |
476 | static inline void __try_update_largest_extent(struct extent_tree *et, |
477 | struct extent_node *en) | |
478 | { | |
479 | if (en->ei.len > et->largest.len) | |
480 | et->largest = en->ei; | |
481 | } | |
482 | ||
39a53e0c JK |
483 | struct f2fs_nm_info { |
484 | block_t nat_blkaddr; /* base disk address of NAT */ | |
485 | nid_t max_nid; /* maximum possible node ids */ | |
7ee0eeab | 486 | nid_t available_nids; /* maximum available node ids */ |
39a53e0c | 487 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 488 | unsigned int ram_thresh; /* control the memory footprint */ |
ea1a29a0 | 489 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
2304cb0c | 490 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
39a53e0c JK |
491 | |
492 | /* NAT cache management */ | |
493 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 494 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
8b26ef98 | 495 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 496 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 497 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 498 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
39a53e0c JK |
499 | |
500 | /* free node ids management */ | |
8a7ed66a | 501 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
39a53e0c JK |
502 | struct list_head free_nid_list; /* a list for free nids */ |
503 | spinlock_t free_nid_list_lock; /* protect free nid list */ | |
504 | unsigned int fcnt; /* the number of free node id */ | |
505 | struct mutex build_lock; /* lock for build free nids */ | |
506 | ||
507 | /* for checkpoint */ | |
508 | char *nat_bitmap; /* NAT bitmap pointer */ | |
509 | int bitmap_size; /* bitmap size */ | |
510 | }; | |
511 | ||
512 | /* | |
513 | * this structure is used as one of function parameters. | |
514 | * all the information are dedicated to a given direct node block determined | |
515 | * by the data offset in a file. | |
516 | */ | |
517 | struct dnode_of_data { | |
518 | struct inode *inode; /* vfs inode pointer */ | |
519 | struct page *inode_page; /* its inode page, NULL is possible */ | |
520 | struct page *node_page; /* cached direct node page */ | |
521 | nid_t nid; /* node id of the direct node block */ | |
522 | unsigned int ofs_in_node; /* data offset in the node page */ | |
523 | bool inode_page_locked; /* inode page is locked or not */ | |
93bae099 | 524 | bool node_changed; /* is node block changed */ |
3cf45747 CY |
525 | char cur_level; /* level of hole node page */ |
526 | char max_level; /* level of current page located */ | |
39a53e0c JK |
527 | block_t data_blkaddr; /* block address of the node block */ |
528 | }; | |
529 | ||
530 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
531 | struct page *ipage, struct page *npage, nid_t nid) | |
532 | { | |
d66d1f76 | 533 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
534 | dn->inode = inode; |
535 | dn->inode_page = ipage; | |
536 | dn->node_page = npage; | |
537 | dn->nid = nid; | |
39a53e0c JK |
538 | } |
539 | ||
540 | /* | |
541 | * For SIT manager | |
542 | * | |
543 | * By default, there are 6 active log areas across the whole main area. | |
544 | * When considering hot and cold data separation to reduce cleaning overhead, | |
545 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
546 | * respectively. | |
547 | * In the current design, you should not change the numbers intentionally. | |
548 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
549 | * logs individually according to the underlying devices. (default: 6) | |
550 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
551 | * data and 8 for node logs. | |
552 | */ | |
553 | #define NR_CURSEG_DATA_TYPE (3) | |
554 | #define NR_CURSEG_NODE_TYPE (3) | |
555 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
556 | ||
557 | enum { | |
558 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
559 | CURSEG_WARM_DATA, /* data blocks */ | |
560 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
561 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
562 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
563 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 JK |
564 | NO_CHECK_TYPE, |
565 | CURSEG_DIRECT_IO, /* to use for the direct IO path */ | |
39a53e0c JK |
566 | }; |
567 | ||
6b4afdd7 | 568 | struct flush_cmd { |
6b4afdd7 | 569 | struct completion wait; |
721bd4d5 | 570 | struct llist_node llnode; |
6b4afdd7 JK |
571 | int ret; |
572 | }; | |
573 | ||
a688b9d9 GZ |
574 | struct flush_cmd_control { |
575 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
576 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
721bd4d5 GZ |
577 | struct llist_head issue_list; /* list for command issue */ |
578 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
579 | }; |
580 | ||
39a53e0c JK |
581 | struct f2fs_sm_info { |
582 | struct sit_info *sit_info; /* whole segment information */ | |
583 | struct free_segmap_info *free_info; /* free segment information */ | |
584 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
585 | struct curseg_info *curseg_array; /* active segment information */ | |
586 | ||
39a53e0c JK |
587 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
588 | block_t main_blkaddr; /* start block address of main area */ | |
589 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
590 | ||
591 | unsigned int segment_count; /* total # of segments */ | |
592 | unsigned int main_segments; /* # of segments in main area */ | |
593 | unsigned int reserved_segments; /* # of reserved segments */ | |
594 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
595 | |
596 | /* a threshold to reclaim prefree segments */ | |
597 | unsigned int rec_prefree_segments; | |
7fd9e544 JK |
598 | |
599 | /* for small discard management */ | |
600 | struct list_head discard_list; /* 4KB discard list */ | |
601 | int nr_discards; /* # of discards in the list */ | |
602 | int max_discards; /* max. discards to be issued */ | |
216fbd64 | 603 | |
bba681cb JK |
604 | /* for batched trimming */ |
605 | unsigned int trim_sections; /* # of sections to trim */ | |
606 | ||
184a5cd2 CY |
607 | struct list_head sit_entry_set; /* sit entry set list */ |
608 | ||
216fbd64 JK |
609 | unsigned int ipu_policy; /* in-place-update policy */ |
610 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 611 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
6b4afdd7 JK |
612 | |
613 | /* for flush command control */ | |
a688b9d9 GZ |
614 | struct flush_cmd_control *cmd_control_info; |
615 | ||
39a53e0c JK |
616 | }; |
617 | ||
39a53e0c JK |
618 | /* |
619 | * For superblock | |
620 | */ | |
621 | /* | |
622 | * COUNT_TYPE for monitoring | |
623 | * | |
624 | * f2fs monitors the number of several block types such as on-writeback, | |
625 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
626 | */ | |
627 | enum count_type { | |
628 | F2FS_WRITEBACK, | |
629 | F2FS_DIRTY_DENTS, | |
c227f912 | 630 | F2FS_DIRTY_DATA, |
39a53e0c JK |
631 | F2FS_DIRTY_NODES, |
632 | F2FS_DIRTY_META, | |
8dcf2ff7 | 633 | F2FS_INMEM_PAGES, |
39a53e0c JK |
634 | NR_COUNT_TYPE, |
635 | }; | |
636 | ||
39a53e0c | 637 | /* |
e1c42045 | 638 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
639 | * The available types are: |
640 | * DATA User data pages. It operates as async mode. | |
641 | * NODE Node pages. It operates as async mode. | |
642 | * META FS metadata pages such as SIT, NAT, CP. | |
643 | * NR_PAGE_TYPE The number of page types. | |
644 | * META_FLUSH Make sure the previous pages are written | |
645 | * with waiting the bio's completion | |
646 | * ... Only can be used with META. | |
647 | */ | |
7d5e5109 | 648 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
649 | enum page_type { |
650 | DATA, | |
651 | NODE, | |
652 | META, | |
653 | NR_PAGE_TYPE, | |
654 | META_FLUSH, | |
8ce67cb0 JK |
655 | INMEM, /* the below types are used by tracepoints only. */ |
656 | INMEM_DROP, | |
28bc106b | 657 | INMEM_REVOKE, |
8ce67cb0 JK |
658 | IPU, |
659 | OPU, | |
39a53e0c JK |
660 | }; |
661 | ||
458e6197 | 662 | struct f2fs_io_info { |
05ca3632 | 663 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 GZ |
664 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
665 | int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */ | |
7a9d7548 | 666 | block_t new_blkaddr; /* new block address to be written */ |
28bc106b | 667 | block_t old_blkaddr; /* old block address before Cow */ |
05ca3632 | 668 | struct page *page; /* page to be written */ |
4375a336 | 669 | struct page *encrypted_page; /* encrypted page */ |
458e6197 JK |
670 | }; |
671 | ||
93dfe2ac | 672 | #define is_read_io(rw) (((rw) & 1) == READ) |
1ff7bd3b | 673 | struct f2fs_bio_info { |
458e6197 | 674 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
675 | struct bio *bio; /* bios to merge */ |
676 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 677 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 678 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
679 | }; |
680 | ||
c227f912 CY |
681 | enum inode_type { |
682 | DIR_INODE, /* for dirty dir inode */ | |
683 | FILE_INODE, /* for dirty regular/symlink inode */ | |
684 | NR_INODE_TYPE, | |
685 | }; | |
686 | ||
67298804 CY |
687 | /* for inner inode cache management */ |
688 | struct inode_management { | |
689 | struct radix_tree_root ino_root; /* ino entry array */ | |
690 | spinlock_t ino_lock; /* for ino entry lock */ | |
691 | struct list_head ino_list; /* inode list head */ | |
692 | unsigned long ino_num; /* number of entries */ | |
693 | }; | |
694 | ||
caf0047e CY |
695 | /* For s_flag in struct f2fs_sb_info */ |
696 | enum { | |
697 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
698 | SBI_IS_CLOSE, /* specify unmounting */ | |
699 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
700 | SBI_POR_DOING, /* recovery is doing or not */ | |
df728b0f | 701 | SBI_NEED_SB_WRITE, /* need to recover superblock */ |
caf0047e CY |
702 | }; |
703 | ||
6beceb54 JK |
704 | enum { |
705 | CP_TIME, | |
d0239e1b | 706 | REQ_TIME, |
6beceb54 JK |
707 | MAX_TIME, |
708 | }; | |
709 | ||
39a53e0c JK |
710 | struct f2fs_sb_info { |
711 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 712 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c | 713 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
e8240f65 | 714 | int valid_super_block; /* valid super block no */ |
caf0047e | 715 | int s_flag; /* flags for sbi */ |
39a53e0c JK |
716 | |
717 | /* for node-related operations */ | |
718 | struct f2fs_nm_info *nm_info; /* node manager */ | |
719 | struct inode *node_inode; /* cache node blocks */ | |
720 | ||
721 | /* for segment-related operations */ | |
722 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
723 | |
724 | /* for bio operations */ | |
924b720b | 725 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 726 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
39a53e0c JK |
727 | |
728 | /* for checkpoint */ | |
729 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
730 | struct inode *meta_inode; /* cache meta blocks */ | |
39936837 | 731 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
e479556b | 732 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 733 | struct rw_semaphore node_write; /* locking node writes */ |
5463e7c1 | 734 | struct mutex writepages; /* mutex for writepages() */ |
fb51b5ef | 735 | wait_queue_head_t cp_wait; |
6beceb54 JK |
736 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
737 | long interval_time[MAX_TIME]; /* to store thresholds */ | |
39a53e0c | 738 | |
67298804 | 739 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
740 | |
741 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 742 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c | 743 | |
c227f912 CY |
744 | /* for inode management */ |
745 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ | |
746 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ | |
39a53e0c | 747 | |
13054c54 CY |
748 | /* for extent tree cache */ |
749 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
750 | struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ | |
751 | struct list_head extent_list; /* lru list for shrinker */ | |
752 | spinlock_t extent_lock; /* locking extent lru list */ | |
7441ccef | 753 | atomic_t total_ext_tree; /* extent tree count */ |
137d09f0 | 754 | struct list_head zombie_list; /* extent zombie tree list */ |
74fd8d99 | 755 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
13054c54 CY |
756 | atomic_t total_ext_node; /* extent info count */ |
757 | ||
e1c42045 | 758 | /* basic filesystem units */ |
39a53e0c JK |
759 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
760 | unsigned int log_blocksize; /* log2 block size */ | |
761 | unsigned int blocksize; /* block size */ | |
762 | unsigned int root_ino_num; /* root inode number*/ | |
763 | unsigned int node_ino_num; /* node inode number*/ | |
764 | unsigned int meta_ino_num; /* meta inode number*/ | |
765 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
766 | unsigned int blocks_per_seg; /* blocks per segment */ | |
767 | unsigned int segs_per_sec; /* segments per section */ | |
768 | unsigned int secs_per_zone; /* sections per zone */ | |
769 | unsigned int total_sections; /* total section count */ | |
770 | unsigned int total_node_count; /* total node block count */ | |
771 | unsigned int total_valid_node_count; /* valid node block count */ | |
772 | unsigned int total_valid_inode_count; /* valid inode count */ | |
e0afc4d6 | 773 | loff_t max_file_blocks; /* max block index of file */ |
39a53e0c | 774 | int active_logs; /* # of active logs */ |
ab9fa662 | 775 | int dir_level; /* directory level */ |
39a53e0c JK |
776 | |
777 | block_t user_block_count; /* # of user blocks */ | |
778 | block_t total_valid_block_count; /* # of valid blocks */ | |
779 | block_t alloc_valid_block_count; /* # of allocated blocks */ | |
a66cdd98 | 780 | block_t discard_blks; /* discard command candidats */ |
39a53e0c JK |
781 | block_t last_valid_block_count; /* for recovery */ |
782 | u32 s_next_generation; /* for NFS support */ | |
783 | atomic_t nr_pages[NR_COUNT_TYPE]; /* # of pages, see count_type */ | |
784 | ||
785 | struct f2fs_mount_info mount_opt; /* mount options */ | |
786 | ||
787 | /* for cleaning operations */ | |
788 | struct mutex gc_mutex; /* mutex for GC */ | |
789 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 790 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 791 | |
b1c57c1c JK |
792 | /* maximum # of trials to find a victim segment for SSR and GC */ |
793 | unsigned int max_victim_search; | |
794 | ||
39a53e0c JK |
795 | /* |
796 | * for stat information. | |
797 | * one is for the LFS mode, and the other is for the SSR mode. | |
798 | */ | |
35b09d82 | 799 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
800 | struct f2fs_stat_info *stat_info; /* FS status information */ |
801 | unsigned int segment_count[2]; /* # of allocated segments */ | |
802 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 803 | atomic_t inplace_count; /* # of inplace update */ |
5b7ee374 CY |
804 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
805 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
806 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
807 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
d5e8f6c9 | 808 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
03e14d52 CY |
809 | atomic_t inline_inode; /* # of inline_data inodes */ |
810 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
39a53e0c | 811 | int bg_gc; /* background gc calls */ |
33fbd510 | 812 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
35b09d82 NJ |
813 | #endif |
814 | unsigned int last_victim[2]; /* last victim segment # */ | |
39a53e0c | 815 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
816 | |
817 | /* For sysfs suppport */ | |
818 | struct kobject s_kobj; | |
819 | struct completion s_kobj_unregister; | |
2658e50d JK |
820 | |
821 | /* For shrinker support */ | |
822 | struct list_head s_list; | |
823 | struct mutex umount_mutex; | |
824 | unsigned int shrinker_run_no; | |
8f1dbbbb SL |
825 | |
826 | /* For write statistics */ | |
827 | u64 sectors_written_start; | |
828 | u64 kbytes_written; | |
43b6573b KM |
829 | |
830 | /* Reference to checksum algorithm driver via cryptoapi */ | |
831 | struct crypto_shash *s_chksum_driver; | |
39a53e0c JK |
832 | }; |
833 | ||
8f1dbbbb SL |
834 | /* For write statistics. Suppose sector size is 512 bytes, |
835 | * and the return value is in kbytes. s is of struct f2fs_sb_info. | |
836 | */ | |
837 | #define BD_PART_WRITTEN(s) \ | |
838 | (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \ | |
839 | s->sectors_written_start) >> 1) | |
840 | ||
6beceb54 JK |
841 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
842 | { | |
843 | sbi->last_time[type] = jiffies; | |
844 | } | |
845 | ||
846 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) | |
847 | { | |
848 | struct timespec ts = {sbi->interval_time[type], 0}; | |
849 | unsigned long interval = timespec_to_jiffies(&ts); | |
850 | ||
851 | return time_after(jiffies, sbi->last_time[type] + interval); | |
852 | } | |
853 | ||
d0239e1b JK |
854 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
855 | { | |
856 | struct block_device *bdev = sbi->sb->s_bdev; | |
857 | struct request_queue *q = bdev_get_queue(bdev); | |
858 | struct request_list *rl = &q->root_rl; | |
859 | ||
860 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) | |
861 | return 0; | |
862 | ||
863 | return f2fs_time_over(sbi, REQ_TIME); | |
864 | } | |
865 | ||
39a53e0c JK |
866 | /* |
867 | * Inline functions | |
868 | */ | |
43b6573b KM |
869 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
870 | unsigned int length) | |
871 | { | |
872 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); | |
873 | u32 *ctx = (u32 *)shash_desc_ctx(shash); | |
874 | int err; | |
875 | ||
876 | shash->tfm = sbi->s_chksum_driver; | |
877 | shash->flags = 0; | |
878 | *ctx = F2FS_SUPER_MAGIC; | |
879 | ||
880 | err = crypto_shash_update(shash, address, length); | |
881 | BUG_ON(err); | |
882 | ||
883 | return *ctx; | |
884 | } | |
885 | ||
886 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, | |
887 | void *buf, size_t buf_size) | |
888 | { | |
889 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; | |
890 | } | |
891 | ||
39a53e0c JK |
892 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
893 | { | |
894 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
895 | } | |
896 | ||
897 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
898 | { | |
899 | return sb->s_fs_info; | |
900 | } | |
901 | ||
4081363f JK |
902 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
903 | { | |
904 | return F2FS_SB(inode->i_sb); | |
905 | } | |
906 | ||
907 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
908 | { | |
909 | return F2FS_I_SB(mapping->host); | |
910 | } | |
911 | ||
912 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
913 | { | |
914 | return F2FS_M_SB(page->mapping); | |
915 | } | |
916 | ||
39a53e0c JK |
917 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
918 | { | |
919 | return (struct f2fs_super_block *)(sbi->raw_super); | |
920 | } | |
921 | ||
922 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
923 | { | |
924 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
925 | } | |
926 | ||
45590710 GZ |
927 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
928 | { | |
929 | return (struct f2fs_node *)page_address(page); | |
930 | } | |
931 | ||
58bfaf44 JK |
932 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
933 | { | |
934 | return &((struct f2fs_node *)page_address(page))->i; | |
935 | } | |
936 | ||
39a53e0c JK |
937 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
938 | { | |
939 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
940 | } | |
941 | ||
942 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
943 | { | |
944 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
945 | } | |
946 | ||
947 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
948 | { | |
949 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
950 | } | |
951 | ||
952 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
953 | { | |
954 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
955 | } | |
956 | ||
957 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
958 | { | |
959 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
960 | } | |
961 | ||
9df27d98 GZ |
962 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
963 | { | |
964 | return sbi->meta_inode->i_mapping; | |
965 | } | |
966 | ||
4ef51a8f JK |
967 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
968 | { | |
969 | return sbi->node_inode->i_mapping; | |
970 | } | |
971 | ||
caf0047e CY |
972 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
973 | { | |
974 | return sbi->s_flag & (0x01 << type); | |
975 | } | |
976 | ||
977 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 978 | { |
caf0047e | 979 | sbi->s_flag |= (0x01 << type); |
39a53e0c JK |
980 | } |
981 | ||
caf0047e | 982 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 983 | { |
caf0047e | 984 | sbi->s_flag &= ~(0x01 << type); |
39a53e0c JK |
985 | } |
986 | ||
d71b5564 JK |
987 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
988 | { | |
989 | return le64_to_cpu(cp->checkpoint_ver); | |
990 | } | |
991 | ||
25ca923b JK |
992 | static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
993 | { | |
994 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
995 | return ckpt_flags & f; | |
996 | } | |
997 | ||
998 | static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
999 | { | |
1000 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1001 | ckpt_flags |= f; | |
1002 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1003 | } | |
1004 | ||
1005 | static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1006 | { | |
1007 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1008 | ckpt_flags &= (~f); | |
1009 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1010 | } | |
1011 | ||
e479556b | 1012 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 1013 | { |
e479556b | 1014 | down_read(&sbi->cp_rwsem); |
39936837 JK |
1015 | } |
1016 | ||
e479556b | 1017 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 1018 | { |
e479556b | 1019 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
1020 | } |
1021 | ||
e479556b | 1022 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 1023 | { |
59692b7c | 1024 | down_write(&sbi->cp_rwsem); |
39936837 JK |
1025 | } |
1026 | ||
e479556b | 1027 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 1028 | { |
e479556b | 1029 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
1030 | } |
1031 | ||
119ee914 JK |
1032 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
1033 | { | |
1034 | int reason = CP_SYNC; | |
1035 | ||
1036 | if (test_opt(sbi, FASTBOOT)) | |
1037 | reason = CP_FASTBOOT; | |
1038 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
1039 | reason = CP_UMOUNT; | |
1040 | return reason; | |
1041 | } | |
1042 | ||
1043 | static inline bool __remain_node_summaries(int reason) | |
1044 | { | |
1045 | return (reason == CP_UMOUNT || reason == CP_FASTBOOT); | |
1046 | } | |
1047 | ||
1048 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
1049 | { | |
1050 | return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || | |
1051 | is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); | |
1052 | } | |
1053 | ||
39a53e0c JK |
1054 | /* |
1055 | * Check whether the given nid is within node id range. | |
1056 | */ | |
064e0823 | 1057 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 1058 | { |
d6b7d4b3 CY |
1059 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
1060 | return -EINVAL; | |
cfb271d4 | 1061 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
1062 | return -EINVAL; |
1063 | return 0; | |
39a53e0c JK |
1064 | } |
1065 | ||
1066 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
1067 | ||
1068 | /* | |
1069 | * Check whether the inode has blocks or not | |
1070 | */ | |
1071 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1072 | { | |
1073 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 1074 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 1075 | else |
6c311ec6 | 1076 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
1077 | } |
1078 | ||
4bc8e9bc CY |
1079 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
1080 | { | |
1081 | return ofs == XATTR_NODE_OFFSET; | |
1082 | } | |
1083 | ||
39a53e0c JK |
1084 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
1085 | struct inode *inode, blkcnt_t count) | |
1086 | { | |
1087 | block_t valid_block_count; | |
1088 | ||
1089 | spin_lock(&sbi->stat_lock); | |
1090 | valid_block_count = | |
1091 | sbi->total_valid_block_count + (block_t)count; | |
cfb271d4 | 1092 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1093 | spin_unlock(&sbi->stat_lock); |
1094 | return false; | |
1095 | } | |
1096 | inode->i_blocks += count; | |
1097 | sbi->total_valid_block_count = valid_block_count; | |
1098 | sbi->alloc_valid_block_count += (block_t)count; | |
1099 | spin_unlock(&sbi->stat_lock); | |
1100 | return true; | |
1101 | } | |
1102 | ||
da19b0dc | 1103 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
1104 | struct inode *inode, |
1105 | blkcnt_t count) | |
1106 | { | |
1107 | spin_lock(&sbi->stat_lock); | |
9850cf4a JK |
1108 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
1109 | f2fs_bug_on(sbi, inode->i_blocks < count); | |
39a53e0c JK |
1110 | inode->i_blocks -= count; |
1111 | sbi->total_valid_block_count -= (block_t)count; | |
1112 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1113 | } |
1114 | ||
1115 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1116 | { | |
1117 | atomic_inc(&sbi->nr_pages[count_type]); | |
caf0047e | 1118 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
1119 | } |
1120 | ||
a7ffdbe2 | 1121 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 1122 | { |
a7ffdbe2 | 1123 | atomic_inc(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1124 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1125 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1126 | } |
1127 | ||
1128 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1129 | { | |
1130 | atomic_dec(&sbi->nr_pages[count_type]); | |
1131 | } | |
1132 | ||
a7ffdbe2 | 1133 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 1134 | { |
5ac9f36f CY |
1135 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1136 | !S_ISLNK(inode->i_mode)) | |
1fe54f9d JK |
1137 | return; |
1138 | ||
a7ffdbe2 | 1139 | atomic_dec(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1140 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1141 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1142 | } |
1143 | ||
1144 | static inline int get_pages(struct f2fs_sb_info *sbi, int count_type) | |
1145 | { | |
1146 | return atomic_read(&sbi->nr_pages[count_type]); | |
1147 | } | |
1148 | ||
a7ffdbe2 | 1149 | static inline int get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1150 | { |
a7ffdbe2 | 1151 | return atomic_read(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1152 | } |
1153 | ||
5ac206cf NJ |
1154 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1155 | { | |
3519e3f9 | 1156 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
5ac206cf NJ |
1157 | return ((get_pages(sbi, block_type) + pages_per_sec - 1) |
1158 | >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; | |
1159 | } | |
1160 | ||
39a53e0c JK |
1161 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1162 | { | |
8b8343fa | 1163 | return sbi->total_valid_block_count; |
39a53e0c JK |
1164 | } |
1165 | ||
1166 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) | |
1167 | { | |
1168 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1169 | ||
1170 | /* return NAT or SIT bitmap */ | |
1171 | if (flag == NAT_BITMAP) | |
1172 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1173 | else if (flag == SIT_BITMAP) | |
1174 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1175 | ||
1176 | return 0; | |
1177 | } | |
1178 | ||
55141486 WL |
1179 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1180 | { | |
1181 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1182 | } | |
1183 | ||
39a53e0c JK |
1184 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1185 | { | |
1186 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1187 | int offset; |
1188 | ||
55141486 | 1189 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1190 | if (flag == NAT_BITMAP) |
1191 | return &ckpt->sit_nat_version_bitmap; | |
1192 | else | |
65b85ccc | 1193 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1194 | } else { |
1195 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1196 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1197 | return &ckpt->sit_nat_version_bitmap + offset; |
1198 | } | |
39a53e0c JK |
1199 | } |
1200 | ||
1201 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1202 | { | |
1203 | block_t start_addr; | |
1204 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d71b5564 | 1205 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
39a53e0c | 1206 | |
25ca923b | 1207 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c JK |
1208 | |
1209 | /* | |
1210 | * odd numbered checkpoint should at cp segment 0 | |
e1c42045 | 1211 | * and even segment must be at cp segment 1 |
39a53e0c JK |
1212 | */ |
1213 | if (!(ckpt_version & 1)) | |
1214 | start_addr += sbi->blocks_per_seg; | |
1215 | ||
1216 | return start_addr; | |
1217 | } | |
1218 | ||
1219 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
1220 | { | |
1221 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1222 | } | |
1223 | ||
1224 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1225 | struct inode *inode) |
39a53e0c JK |
1226 | { |
1227 | block_t valid_block_count; | |
1228 | unsigned int valid_node_count; | |
1229 | ||
1230 | spin_lock(&sbi->stat_lock); | |
1231 | ||
ef86d709 | 1232 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 1233 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1234 | spin_unlock(&sbi->stat_lock); |
1235 | return false; | |
1236 | } | |
1237 | ||
ef86d709 | 1238 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1239 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1240 | spin_unlock(&sbi->stat_lock); |
1241 | return false; | |
1242 | } | |
1243 | ||
1244 | if (inode) | |
ef86d709 GZ |
1245 | inode->i_blocks++; |
1246 | ||
1247 | sbi->alloc_valid_block_count++; | |
1248 | sbi->total_valid_node_count++; | |
1249 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1250 | spin_unlock(&sbi->stat_lock); |
1251 | ||
1252 | return true; | |
1253 | } | |
1254 | ||
1255 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1256 | struct inode *inode) |
39a53e0c JK |
1257 | { |
1258 | spin_lock(&sbi->stat_lock); | |
1259 | ||
9850cf4a JK |
1260 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1261 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1262 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1263 | |
ef86d709 GZ |
1264 | inode->i_blocks--; |
1265 | sbi->total_valid_node_count--; | |
1266 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1267 | |
1268 | spin_unlock(&sbi->stat_lock); | |
1269 | } | |
1270 | ||
1271 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1272 | { | |
8b8343fa | 1273 | return sbi->total_valid_node_count; |
39a53e0c JK |
1274 | } |
1275 | ||
1276 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1277 | { | |
1278 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1279 | f2fs_bug_on(sbi, sbi->total_valid_inode_count == sbi->total_node_count); |
39a53e0c JK |
1280 | sbi->total_valid_inode_count++; |
1281 | spin_unlock(&sbi->stat_lock); | |
1282 | } | |
1283 | ||
0e80220a | 1284 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c JK |
1285 | { |
1286 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1287 | f2fs_bug_on(sbi, !sbi->total_valid_inode_count); |
39a53e0c JK |
1288 | sbi->total_valid_inode_count--; |
1289 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1290 | } |
1291 | ||
1292 | static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) | |
1293 | { | |
8b8343fa | 1294 | return sbi->total_valid_inode_count; |
39a53e0c JK |
1295 | } |
1296 | ||
a56c7c6f JK |
1297 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
1298 | pgoff_t index, bool for_write) | |
1299 | { | |
c41f3cc3 JK |
1300 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1301 | struct page *page = find_lock_page(mapping, index); | |
1302 | if (page) | |
1303 | return page; | |
1304 | ||
1305 | if (time_to_inject(FAULT_PAGE_ALLOC)) | |
1306 | return NULL; | |
1307 | #endif | |
a56c7c6f JK |
1308 | if (!for_write) |
1309 | return grab_cache_page(mapping, index); | |
1310 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); | |
1311 | } | |
1312 | ||
6e2c64ad JK |
1313 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
1314 | { | |
1315 | char *src_kaddr = kmap(src); | |
1316 | char *dst_kaddr = kmap(dst); | |
1317 | ||
1318 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); | |
1319 | kunmap(dst); | |
1320 | kunmap(src); | |
1321 | } | |
1322 | ||
39a53e0c JK |
1323 | static inline void f2fs_put_page(struct page *page, int unlock) |
1324 | { | |
031fa8cc | 1325 | if (!page) |
39a53e0c JK |
1326 | return; |
1327 | ||
1328 | if (unlock) { | |
9850cf4a | 1329 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1330 | unlock_page(page); |
1331 | } | |
09cbfeaf | 1332 | put_page(page); |
39a53e0c JK |
1333 | } |
1334 | ||
1335 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1336 | { | |
1337 | if (dn->node_page) | |
1338 | f2fs_put_page(dn->node_page, 1); | |
1339 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1340 | f2fs_put_page(dn->inode_page, 0); | |
1341 | dn->node_page = NULL; | |
1342 | dn->inode_page = NULL; | |
1343 | } | |
1344 | ||
1345 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1346 | size_t size) |
39a53e0c | 1347 | { |
e8512d2e | 1348 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1349 | } |
1350 | ||
7bd59381 GZ |
1351 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1352 | gfp_t flags) | |
1353 | { | |
1354 | void *entry; | |
7bd59381 | 1355 | |
80c54505 JK |
1356 | entry = kmem_cache_alloc(cachep, flags); |
1357 | if (!entry) | |
1358 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
7bd59381 GZ |
1359 | return entry; |
1360 | } | |
1361 | ||
740432f8 JK |
1362 | static inline struct bio *f2fs_bio_alloc(int npages) |
1363 | { | |
1364 | struct bio *bio; | |
1365 | ||
1366 | /* No failure on bio allocation */ | |
740432f8 | 1367 | bio = bio_alloc(GFP_NOIO, npages); |
80c54505 JK |
1368 | if (!bio) |
1369 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); | |
740432f8 JK |
1370 | return bio; |
1371 | } | |
1372 | ||
9be32d72 JK |
1373 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1374 | unsigned long index, void *item) | |
1375 | { | |
1376 | while (radix_tree_insert(root, index, item)) | |
1377 | cond_resched(); | |
1378 | } | |
1379 | ||
39a53e0c JK |
1380 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1381 | ||
1382 | static inline bool IS_INODE(struct page *page) | |
1383 | { | |
45590710 | 1384 | struct f2fs_node *p = F2FS_NODE(page); |
39a53e0c JK |
1385 | return RAW_IS_INODE(p); |
1386 | } | |
1387 | ||
1388 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1389 | { | |
1390 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1391 | } | |
1392 | ||
1393 | static inline block_t datablock_addr(struct page *node_page, | |
1394 | unsigned int offset) | |
1395 | { | |
1396 | struct f2fs_node *raw_node; | |
1397 | __le32 *addr_array; | |
45590710 | 1398 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1399 | addr_array = blkaddr_in_node(raw_node); |
1400 | return le32_to_cpu(addr_array[offset]); | |
1401 | } | |
1402 | ||
1403 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1404 | { | |
1405 | int mask; | |
1406 | ||
1407 | addr += (nr >> 3); | |
1408 | mask = 1 << (7 - (nr & 0x07)); | |
1409 | return mask & *addr; | |
1410 | } | |
1411 | ||
a66cdd98 JK |
1412 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1413 | { | |
1414 | int mask; | |
1415 | ||
1416 | addr += (nr >> 3); | |
1417 | mask = 1 << (7 - (nr & 0x07)); | |
1418 | *addr |= mask; | |
1419 | } | |
1420 | ||
1421 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
1422 | { | |
1423 | int mask; | |
1424 | ||
1425 | addr += (nr >> 3); | |
1426 | mask = 1 << (7 - (nr & 0x07)); | |
1427 | *addr &= ~mask; | |
1428 | } | |
1429 | ||
52aca074 | 1430 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1431 | { |
1432 | int mask; | |
1433 | int ret; | |
1434 | ||
1435 | addr += (nr >> 3); | |
1436 | mask = 1 << (7 - (nr & 0x07)); | |
1437 | ret = mask & *addr; | |
1438 | *addr |= mask; | |
1439 | return ret; | |
1440 | } | |
1441 | ||
52aca074 | 1442 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1443 | { |
1444 | int mask; | |
1445 | int ret; | |
1446 | ||
1447 | addr += (nr >> 3); | |
1448 | mask = 1 << (7 - (nr & 0x07)); | |
1449 | ret = mask & *addr; | |
1450 | *addr &= ~mask; | |
1451 | return ret; | |
1452 | } | |
1453 | ||
c6ac4c0e GZ |
1454 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1455 | { | |
1456 | int mask; | |
1457 | ||
1458 | addr += (nr >> 3); | |
1459 | mask = 1 << (7 - (nr & 0x07)); | |
1460 | *addr ^= mask; | |
1461 | } | |
1462 | ||
39a53e0c JK |
1463 | /* used for f2fs_inode_info->flags */ |
1464 | enum { | |
1465 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1466 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
ed57c27f | 1467 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1468 | FI_INC_LINK, /* need to increment i_nlink */ |
1469 | FI_ACL_MODE, /* indicate acl mode */ | |
1470 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
c9b63bd0 | 1471 | FI_FREE_NID, /* free allocated nide */ |
699489bb | 1472 | FI_UPDATE_DIR, /* should update inode block for consistency */ |
74d0b917 | 1473 | FI_DELAY_IPUT, /* used for the recovery */ |
c11abd1a | 1474 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1475 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1476 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1477 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1478 | FI_APPEND_WRITE, /* inode has appended data */ |
1479 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1480 | FI_NEED_IPU, /* used for ipu per file */ |
1481 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
02a1335f | 1482 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1483 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1484 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1485 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1486 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
d323d005 | 1487 | FI_DO_DEFRAG, /* indicate defragment is running */ |
c227f912 | 1488 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
39a53e0c JK |
1489 | }; |
1490 | ||
1491 | static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1492 | { | |
61e0f2d0 JK |
1493 | if (!test_bit(flag, &fi->flags)) |
1494 | set_bit(flag, &fi->flags); | |
39a53e0c JK |
1495 | } |
1496 | ||
1497 | static inline int is_inode_flag_set(struct f2fs_inode_info *fi, int flag) | |
1498 | { | |
1499 | return test_bit(flag, &fi->flags); | |
1500 | } | |
1501 | ||
1502 | static inline void clear_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1503 | { | |
61e0f2d0 JK |
1504 | if (test_bit(flag, &fi->flags)) |
1505 | clear_bit(flag, &fi->flags); | |
39a53e0c JK |
1506 | } |
1507 | ||
1508 | static inline void set_acl_inode(struct f2fs_inode_info *fi, umode_t mode) | |
1509 | { | |
1510 | fi->i_acl_mode = mode; | |
1511 | set_inode_flag(fi, FI_ACL_MODE); | |
1512 | } | |
1513 | ||
444c580f JK |
1514 | static inline void get_inline_info(struct f2fs_inode_info *fi, |
1515 | struct f2fs_inode *ri) | |
1516 | { | |
1517 | if (ri->i_inline & F2FS_INLINE_XATTR) | |
1518 | set_inode_flag(fi, FI_INLINE_XATTR); | |
1001b347 HL |
1519 | if (ri->i_inline & F2FS_INLINE_DATA) |
1520 | set_inode_flag(fi, FI_INLINE_DATA); | |
34d67deb CY |
1521 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
1522 | set_inode_flag(fi, FI_INLINE_DENTRY); | |
b3d208f9 JK |
1523 | if (ri->i_inline & F2FS_DATA_EXIST) |
1524 | set_inode_flag(fi, FI_DATA_EXIST); | |
510022a8 JK |
1525 | if (ri->i_inline & F2FS_INLINE_DOTS) |
1526 | set_inode_flag(fi, FI_INLINE_DOTS); | |
444c580f JK |
1527 | } |
1528 | ||
1529 | static inline void set_raw_inline(struct f2fs_inode_info *fi, | |
1530 | struct f2fs_inode *ri) | |
1531 | { | |
1532 | ri->i_inline = 0; | |
1533 | ||
1534 | if (is_inode_flag_set(fi, FI_INLINE_XATTR)) | |
1535 | ri->i_inline |= F2FS_INLINE_XATTR; | |
1001b347 HL |
1536 | if (is_inode_flag_set(fi, FI_INLINE_DATA)) |
1537 | ri->i_inline |= F2FS_INLINE_DATA; | |
34d67deb CY |
1538 | if (is_inode_flag_set(fi, FI_INLINE_DENTRY)) |
1539 | ri->i_inline |= F2FS_INLINE_DENTRY; | |
b3d208f9 JK |
1540 | if (is_inode_flag_set(fi, FI_DATA_EXIST)) |
1541 | ri->i_inline |= F2FS_DATA_EXIST; | |
510022a8 JK |
1542 | if (is_inode_flag_set(fi, FI_INLINE_DOTS)) |
1543 | ri->i_inline |= F2FS_INLINE_DOTS; | |
444c580f JK |
1544 | } |
1545 | ||
987c7c31 CY |
1546 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1547 | { | |
1548 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR); | |
1549 | } | |
1550 | ||
81ca7350 | 1551 | static inline unsigned int addrs_per_inode(struct inode *inode) |
de93653f | 1552 | { |
81ca7350 | 1553 | if (f2fs_has_inline_xattr(inode)) |
de93653f JK |
1554 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1555 | return DEF_ADDRS_PER_INODE; | |
1556 | } | |
1557 | ||
65985d93 JK |
1558 | static inline void *inline_xattr_addr(struct page *page) |
1559 | { | |
695fd1ed | 1560 | struct f2fs_inode *ri = F2FS_INODE(page); |
65985d93 JK |
1561 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1562 | F2FS_INLINE_XATTR_ADDRS]); | |
1563 | } | |
1564 | ||
1565 | static inline int inline_xattr_size(struct inode *inode) | |
1566 | { | |
987c7c31 | 1567 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1568 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1569 | else | |
1570 | return 0; | |
1571 | } | |
1572 | ||
0dbdc2ae JK |
1573 | static inline int f2fs_has_inline_data(struct inode *inode) |
1574 | { | |
1575 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DATA); | |
1576 | } | |
1577 | ||
b3d208f9 JK |
1578 | static inline void f2fs_clear_inline_inode(struct inode *inode) |
1579 | { | |
1580 | clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA); | |
1581 | clear_inode_flag(F2FS_I(inode), FI_DATA_EXIST); | |
1582 | } | |
1583 | ||
1584 | static inline int f2fs_exist_data(struct inode *inode) | |
1585 | { | |
1586 | return is_inode_flag_set(F2FS_I(inode), FI_DATA_EXIST); | |
1587 | } | |
1588 | ||
510022a8 JK |
1589 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1590 | { | |
1591 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DOTS); | |
1592 | } | |
1593 | ||
88b88a66 JK |
1594 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1595 | { | |
1596 | return is_inode_flag_set(F2FS_I(inode), FI_ATOMIC_FILE); | |
1597 | } | |
1598 | ||
02a1335f JK |
1599 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
1600 | { | |
1601 | return is_inode_flag_set(F2FS_I(inode), FI_VOLATILE_FILE); | |
1602 | } | |
1603 | ||
3c6c2beb JK |
1604 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
1605 | { | |
1606 | return is_inode_flag_set(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN); | |
1607 | } | |
1608 | ||
1e84371f JK |
1609 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
1610 | { | |
1611 | return is_inode_flag_set(F2FS_I(inode), FI_DROP_CACHE); | |
1612 | } | |
1613 | ||
1001b347 HL |
1614 | static inline void *inline_data_addr(struct page *page) |
1615 | { | |
695fd1ed | 1616 | struct f2fs_inode *ri = F2FS_INODE(page); |
1001b347 HL |
1617 | return (void *)&(ri->i_addr[1]); |
1618 | } | |
1619 | ||
34d67deb CY |
1620 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
1621 | { | |
1622 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DENTRY); | |
1623 | } | |
1624 | ||
9486ba44 JK |
1625 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
1626 | { | |
1627 | if (!f2fs_has_inline_dentry(dir)) | |
1628 | kunmap(page); | |
1629 | } | |
1630 | ||
b5492af7 JK |
1631 | static inline int is_file(struct inode *inode, int type) |
1632 | { | |
1633 | return F2FS_I(inode)->i_advise & type; | |
1634 | } | |
1635 | ||
1636 | static inline void set_file(struct inode *inode, int type) | |
1637 | { | |
1638 | F2FS_I(inode)->i_advise |= type; | |
1639 | } | |
1640 | ||
1641 | static inline void clear_file(struct inode *inode, int type) | |
1642 | { | |
1643 | F2FS_I(inode)->i_advise &= ~type; | |
1644 | } | |
1645 | ||
77888c1e JK |
1646 | static inline int f2fs_readonly(struct super_block *sb) |
1647 | { | |
1648 | return sb->s_flags & MS_RDONLY; | |
1649 | } | |
1650 | ||
1e968fdf JK |
1651 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
1652 | { | |
1653 | return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1654 | } | |
1655 | ||
744602cf JK |
1656 | static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi) |
1657 | { | |
1658 | set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1659 | sbi->sb->s_flags |= MS_RDONLY; | |
1660 | } | |
1661 | ||
eaa693f4 JK |
1662 | static inline bool is_dot_dotdot(const struct qstr *str) |
1663 | { | |
1664 | if (str->len == 1 && str->name[0] == '.') | |
1665 | return true; | |
1666 | ||
1667 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
1668 | return true; | |
1669 | ||
1670 | return false; | |
1671 | } | |
1672 | ||
3e72f721 JK |
1673 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
1674 | { | |
3e72f721 JK |
1675 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
1676 | is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) | |
1677 | return false; | |
1678 | ||
886f56f9 | 1679 | return S_ISREG(inode->i_mode); |
3e72f721 JK |
1680 | } |
1681 | ||
0414b004 JK |
1682 | static inline void *f2fs_kmalloc(size_t size, gfp_t flags) |
1683 | { | |
2c63fead JK |
1684 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1685 | if (time_to_inject(FAULT_KMALLOC)) | |
1686 | return NULL; | |
1687 | #endif | |
0414b004 JK |
1688 | return kmalloc(size, flags); |
1689 | } | |
1690 | ||
39307a8e JK |
1691 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
1692 | { | |
1693 | void *ret; | |
1694 | ||
1695 | ret = kmalloc(size, flags | __GFP_NOWARN); | |
1696 | if (!ret) | |
1697 | ret = __vmalloc(size, flags, PAGE_KERNEL); | |
1698 | return ret; | |
1699 | } | |
1700 | ||
1701 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) | |
1702 | { | |
1703 | void *ret; | |
1704 | ||
1705 | ret = kzalloc(size, flags | __GFP_NOWARN); | |
1706 | if (!ret) | |
1707 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); | |
1708 | return ret; | |
1709 | } | |
1710 | ||
a6dda0e6 CH |
1711 | #define get_inode_mode(i) \ |
1712 | ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ | |
1713 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) | |
1714 | ||
267378d4 | 1715 | /* get offset of first page in next direct node */ |
81ca7350 CY |
1716 | #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \ |
1717 | ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \ | |
1718 | (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \ | |
1719 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode)) | |
267378d4 | 1720 | |
39a53e0c JK |
1721 | /* |
1722 | * file.c | |
1723 | */ | |
1724 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); | |
1725 | void truncate_data_blocks(struct dnode_of_data *); | |
764aa3e9 | 1726 | int truncate_blocks(struct inode *, u64, bool); |
b0154891 | 1727 | int f2fs_truncate(struct inode *, bool); |
2d4d9fb5 | 1728 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
39a53e0c JK |
1729 | int f2fs_setattr(struct dentry *, struct iattr *); |
1730 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); | |
b292dcab | 1731 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
39a53e0c | 1732 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
e9750824 | 1733 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
39a53e0c JK |
1734 | |
1735 | /* | |
1736 | * inode.c | |
1737 | */ | |
1738 | void f2fs_set_inode_flags(struct inode *); | |
39a53e0c | 1739 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
4660f9c0 | 1740 | int try_to_free_nats(struct f2fs_sb_info *, int); |
12719ae1 JK |
1741 | int update_inode(struct inode *, struct page *); |
1742 | int update_inode_page(struct inode *); | |
39a53e0c JK |
1743 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
1744 | void f2fs_evict_inode(struct inode *); | |
44c16156 | 1745 | void handle_failed_inode(struct inode *); |
39a53e0c JK |
1746 | |
1747 | /* | |
1748 | * namei.c | |
1749 | */ | |
1750 | struct dentry *f2fs_get_parent(struct dentry *child); | |
1751 | ||
1752 | /* | |
1753 | * dir.c | |
1754 | */ | |
dbeacf02 | 1755 | extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; |
510022a8 | 1756 | void set_de_type(struct f2fs_dir_entry *, umode_t); |
675f10bd | 1757 | unsigned char get_de_type(struct f2fs_dir_entry *); |
0b81d077 | 1758 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *, |
6e22c691 | 1759 | f2fs_hash_t, int *, struct f2fs_dentry_ptr *); |
7b3cd7d6 | 1760 | bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, |
0b81d077 | 1761 | unsigned int, struct fscrypt_str *); |
062a3e7b JK |
1762 | void do_make_empty_dir(struct inode *, struct inode *, |
1763 | struct f2fs_dentry_ptr *); | |
dbeacf02 | 1764 | struct page *init_inode_metadata(struct inode *, struct inode *, |
bce8d112 | 1765 | const struct qstr *, struct page *); |
dbeacf02 | 1766 | void update_parent_metadata(struct inode *, struct inode *, unsigned int); |
a82afa20 | 1767 | int room_for_filename(const void *, int, int); |
dbeacf02 | 1768 | void f2fs_drop_nlink(struct inode *, struct inode *, struct page *); |
39a53e0c JK |
1769 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *, |
1770 | struct page **); | |
1771 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); | |
1772 | ino_t f2fs_inode_by_name(struct inode *, struct qstr *); | |
1773 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, | |
1774 | struct page *, struct inode *); | |
e7d55452 | 1775 | int update_dent_inode(struct inode *, struct inode *, const struct qstr *); |
510022a8 | 1776 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, |
3b4d732a | 1777 | const struct qstr *, f2fs_hash_t , unsigned int); |
675f10bd CY |
1778 | int f2fs_add_regular_entry(struct inode *, const struct qstr *, |
1779 | struct inode *, nid_t, umode_t); | |
510022a8 JK |
1780 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, |
1781 | umode_t); | |
dbeacf02 CY |
1782 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, |
1783 | struct inode *); | |
b97a9b5d | 1784 | int f2fs_do_tmpfile(struct inode *, struct inode *); |
39a53e0c JK |
1785 | bool f2fs_empty_dir(struct inode *); |
1786 | ||
b7f7a5e0 AV |
1787 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
1788 | { | |
2b0143b5 | 1789 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 1790 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
1791 | } |
1792 | ||
39a53e0c JK |
1793 | /* |
1794 | * super.c | |
1795 | */ | |
c5bda1c8 | 1796 | int f2fs_commit_super(struct f2fs_sb_info *, bool); |
39a53e0c | 1797 | int f2fs_sync_fs(struct super_block *, int); |
a07ef784 NJ |
1798 | extern __printf(3, 4) |
1799 | void f2fs_msg(struct super_block *, const char *, const char *, ...); | |
984ec63c | 1800 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
39a53e0c JK |
1801 | |
1802 | /* | |
1803 | * hash.c | |
1804 | */ | |
eee6160f | 1805 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *); |
39a53e0c JK |
1806 | |
1807 | /* | |
1808 | * node.c | |
1809 | */ | |
1810 | struct dnode_of_data; | |
1811 | struct node_info; | |
1812 | ||
6fb03f3a | 1813 | bool available_free_memory(struct f2fs_sb_info *, int); |
2dcf51ab | 1814 | int need_dentry_mark(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1815 | bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1816 | bool need_inode_block_update(struct f2fs_sb_info *, nid_t); |
39a53e0c | 1817 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
3cf45747 | 1818 | pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t); |
39a53e0c JK |
1819 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); |
1820 | int truncate_inode_blocks(struct inode *, pgoff_t); | |
4f16fb0f | 1821 | int truncate_xattr_node(struct inode *, struct page *); |
cfe58f9d | 1822 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
13ec7297 | 1823 | int remove_inode_page(struct inode *); |
a014e037 | 1824 | struct page *new_inode_page(struct inode *); |
8ae8f162 | 1825 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
39a53e0c JK |
1826 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
1827 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); | |
1828 | struct page *get_node_page_ra(struct page *, int); | |
1829 | void sync_inode_page(struct dnode_of_data *); | |
da011cc0 | 1830 | void move_node_page(struct page *, int); |
608514de JK |
1831 | int fsync_node_pages(struct f2fs_sb_info *, nid_t, struct writeback_control *, |
1832 | bool); | |
52681375 | 1833 | int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *); |
39a53e0c JK |
1834 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); |
1835 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); | |
1836 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); | |
31696580 | 1837 | int try_to_free_nids(struct f2fs_sb_info *, int); |
70cfed88 | 1838 | void recover_inline_xattr(struct inode *, struct page *); |
1c35a90e | 1839 | void recover_xattr_data(struct inode *, struct page *, block_t); |
39a53e0c JK |
1840 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
1841 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, | |
1842 | struct f2fs_summary_block *); | |
1843 | void flush_nat_entries(struct f2fs_sb_info *); | |
1844 | int build_node_manager(struct f2fs_sb_info *); | |
1845 | void destroy_node_manager(struct f2fs_sb_info *); | |
6e6093a8 | 1846 | int __init create_node_manager_caches(void); |
39a53e0c JK |
1847 | void destroy_node_manager_caches(void); |
1848 | ||
1849 | /* | |
1850 | * segment.c | |
1851 | */ | |
88b88a66 | 1852 | void register_inmem_page(struct inode *, struct page *); |
29b96b54 CY |
1853 | void drop_inmem_pages(struct inode *); |
1854 | int commit_inmem_pages(struct inode *); | |
2c4db1a6 | 1855 | void f2fs_balance_fs(struct f2fs_sb_info *, bool); |
4660f9c0 | 1856 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
6b4afdd7 | 1857 | int f2fs_issue_flush(struct f2fs_sb_info *); |
2163d198 GZ |
1858 | int create_flush_cmd_control(struct f2fs_sb_info *); |
1859 | void destroy_flush_cmd_control(struct f2fs_sb_info *); | |
39a53e0c | 1860 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
6e2c64ad | 1861 | bool is_checkpointed_data(struct f2fs_sb_info *, block_t); |
5e443818 | 1862 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
836b5a63 | 1863 | void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); |
4b2fecc8 | 1864 | void release_discard_addrs(struct f2fs_sb_info *); |
e90c2d28 | 1865 | bool discard_next_dnode(struct f2fs_sb_info *, block_t); |
3fa06d7b | 1866 | int npages_for_summary_flush(struct f2fs_sb_info *, bool); |
39a53e0c | 1867 | void allocate_new_segments(struct f2fs_sb_info *); |
4b2fecc8 | 1868 | int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); |
39a53e0c | 1869 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); |
381722d2 | 1870 | void update_meta_page(struct f2fs_sb_info *, void *, block_t); |
577e3495 | 1871 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
05ca3632 JK |
1872 | void write_node_page(unsigned int, struct f2fs_io_info *); |
1873 | void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); | |
1874 | void rewrite_data_page(struct f2fs_io_info *); | |
4356e48e CY |
1875 | void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *, |
1876 | block_t, block_t, bool, bool); | |
528e3459 | 1877 | void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *, |
28bc106b | 1878 | block_t, block_t, unsigned char, bool, bool); |
bfad7c2d JK |
1879 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
1880 | block_t, block_t *, struct f2fs_summary *, int); | |
fec1d657 | 1881 | void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool); |
08b39fbd | 1882 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t); |
39a53e0c JK |
1883 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
1884 | void write_node_summaries(struct f2fs_sb_info *, block_t); | |
dfc08a12 | 1885 | int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int); |
4b2fecc8 | 1886 | void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); |
39a53e0c | 1887 | int build_segment_manager(struct f2fs_sb_info *); |
39a53e0c | 1888 | void destroy_segment_manager(struct f2fs_sb_info *); |
7fd9e544 JK |
1889 | int __init create_segment_manager_caches(void); |
1890 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
1891 | |
1892 | /* | |
1893 | * checkpoint.c | |
1894 | */ | |
1895 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); | |
1896 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); | |
2b947003 | 1897 | struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t); |
f0c9cada | 1898 | bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); |
26879fb1 | 1899 | int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool); |
635aee1f | 1900 | void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); |
39a53e0c | 1901 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
a49324f1 CY |
1902 | void add_ino_entry(struct f2fs_sb_info *, nid_t, int type); |
1903 | void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type); | |
1904 | void release_ino_entry(struct f2fs_sb_info *); | |
fff04f90 | 1905 | bool exist_written_data(struct f2fs_sb_info *, nid_t, int); |
cbd56e7d JK |
1906 | int acquire_orphan_inode(struct f2fs_sb_info *); |
1907 | void release_orphan_inode(struct f2fs_sb_info *); | |
39a53e0c JK |
1908 | void add_orphan_inode(struct f2fs_sb_info *, nid_t); |
1909 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); | |
8c14bfad | 1910 | int recover_orphan_inodes(struct f2fs_sb_info *); |
39a53e0c | 1911 | int get_valid_checkpoint(struct f2fs_sb_info *); |
a7ffdbe2 | 1912 | void update_dirty_page(struct inode *, struct page *); |
5deb8267 | 1913 | void add_dirty_dir_inode(struct inode *); |
c227f912 | 1914 | void remove_dirty_inode(struct inode *); |
6d5a1495 | 1915 | int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type); |
c34f42e2 | 1916 | int write_checkpoint(struct f2fs_sb_info *, struct cp_control *); |
6451e041 | 1917 | void init_ino_entry_info(struct f2fs_sb_info *); |
6e6093a8 | 1918 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
1919 | void destroy_checkpoint_caches(void); |
1920 | ||
1921 | /* | |
1922 | * data.c | |
1923 | */ | |
458e6197 | 1924 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
0c3a5797 CY |
1925 | void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *, |
1926 | struct page *, nid_t, enum page_type, int); | |
406657dd | 1927 | void f2fs_flush_merged_bios(struct f2fs_sb_info *); |
05ca3632 JK |
1928 | int f2fs_submit_page_bio(struct f2fs_io_info *); |
1929 | void f2fs_submit_page_mbio(struct f2fs_io_info *); | |
216a620a | 1930 | void set_data_blkaddr(struct dnode_of_data *); |
f28b3434 | 1931 | void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t); |
39a53e0c | 1932 | int reserve_new_block(struct dnode_of_data *); |
759af1c9 | 1933 | int f2fs_get_block(struct dnode_of_data *, pgoff_t); |
b439b103 | 1934 | ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *); |
b600965c | 1935 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
a56c7c6f | 1936 | struct page *get_read_data_page(struct inode *, pgoff_t, int, bool); |
43f3eae1 | 1937 | struct page *find_data_page(struct inode *, pgoff_t); |
a56c7c6f | 1938 | struct page *get_lock_data_page(struct inode *, pgoff_t, bool); |
64aa7ed9 | 1939 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
05ca3632 | 1940 | int do_write_data_page(struct f2fs_io_info *); |
d323d005 | 1941 | int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int); |
9ab70134 | 1942 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
487261f3 CY |
1943 | void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); |
1944 | int f2fs_release_page(struct page *, gfp_t); | |
39a53e0c JK |
1945 | |
1946 | /* | |
1947 | * gc.c | |
1948 | */ | |
1949 | int start_gc_thread(struct f2fs_sb_info *); | |
1950 | void stop_gc_thread(struct f2fs_sb_info *); | |
81ca7350 | 1951 | block_t start_bidx_of_node(unsigned int, struct inode *); |
d530d4d8 | 1952 | int f2fs_gc(struct f2fs_sb_info *, bool); |
39a53e0c | 1953 | void build_gc_manager(struct f2fs_sb_info *); |
39a53e0c JK |
1954 | |
1955 | /* | |
1956 | * recovery.c | |
1957 | */ | |
6781eabb | 1958 | int recover_fsync_data(struct f2fs_sb_info *, bool); |
39a53e0c JK |
1959 | bool space_for_roll_forward(struct f2fs_sb_info *); |
1960 | ||
1961 | /* | |
1962 | * debug.c | |
1963 | */ | |
1964 | #ifdef CONFIG_F2FS_STAT_FS | |
1965 | struct f2fs_stat_info { | |
1966 | struct list_head stat_list; | |
1967 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
1968 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
1969 | int main_area_segs, main_area_sections, main_area_zones; | |
5b7ee374 CY |
1970 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
1971 | unsigned long long hit_total, total_ext; | |
c00ba554 | 1972 | int ext_tree, zombie_tree, ext_node; |
33fbd510 CY |
1973 | int ndirty_node, ndirty_meta; |
1974 | int ndirty_dent, ndirty_dirs, ndirty_data, ndirty_files; | |
dd4e4b59 | 1975 | int nats, dirty_nats, sits, dirty_sits, fnids; |
39a53e0c | 1976 | int total_count, utilization; |
d5e8f6c9 CY |
1977 | int bg_gc, inmem_pages, wb_pages; |
1978 | int inline_xattr, inline_inode, inline_dir; | |
39a53e0c JK |
1979 | unsigned int valid_count, valid_node_count, valid_inode_count; |
1980 | unsigned int bimodal, avg_vblocks; | |
1981 | int util_free, util_valid, util_invalid; | |
1982 | int rsvd_segs, overp_segs; | |
1983 | int dirty_count, node_pages, meta_pages; | |
42190d2a | 1984 | int prefree_count, call_count, cp_count, bg_cp_count; |
39a53e0c | 1985 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 1986 | int bg_node_segs, bg_data_segs; |
39a53e0c | 1987 | int tot_blks, data_blks, node_blks; |
e1235983 | 1988 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
1989 | int curseg[NR_CURSEG_TYPE]; |
1990 | int cursec[NR_CURSEG_TYPE]; | |
1991 | int curzone[NR_CURSEG_TYPE]; | |
1992 | ||
1993 | unsigned int segment_count[2]; | |
1994 | unsigned int block_count[2]; | |
b9a2c252 | 1995 | unsigned int inplace_count; |
9edcdabf | 1996 | unsigned long long base_mem, cache_mem, page_mem; |
39a53e0c JK |
1997 | }; |
1998 | ||
963d4f7d GZ |
1999 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
2000 | { | |
6c311ec6 | 2001 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
2002 | } |
2003 | ||
942e0be6 | 2004 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
42190d2a | 2005 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
dcdfff65 JK |
2006 | #define stat_inc_call_count(si) ((si)->call_count++) |
2007 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
33fbd510 CY |
2008 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
2009 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) | |
5b7ee374 CY |
2010 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
2011 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
2012 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
2013 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
d5e8f6c9 CY |
2014 | #define stat_inc_inline_xattr(inode) \ |
2015 | do { \ | |
2016 | if (f2fs_has_inline_xattr(inode)) \ | |
2017 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2018 | } while (0) | |
2019 | #define stat_dec_inline_xattr(inode) \ | |
2020 | do { \ | |
2021 | if (f2fs_has_inline_xattr(inode)) \ | |
2022 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2023 | } while (0) | |
0dbdc2ae JK |
2024 | #define stat_inc_inline_inode(inode) \ |
2025 | do { \ | |
2026 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2027 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
2028 | } while (0) |
2029 | #define stat_dec_inline_inode(inode) \ | |
2030 | do { \ | |
2031 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2032 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 2033 | } while (0) |
3289c061 JK |
2034 | #define stat_inc_inline_dir(inode) \ |
2035 | do { \ | |
2036 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2037 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
2038 | } while (0) |
2039 | #define stat_dec_inline_dir(inode) \ | |
2040 | do { \ | |
2041 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2042 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 2043 | } while (0) |
dcdfff65 JK |
2044 | #define stat_inc_seg_type(sbi, curseg) \ |
2045 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
2046 | #define stat_inc_block_count(sbi, curseg) \ | |
2047 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
2048 | #define stat_inc_inplace_blocks(sbi) \ |
2049 | (atomic_inc(&(sbi)->inplace_count)) | |
e1235983 | 2050 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 2051 | do { \ |
963d4f7d | 2052 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c | 2053 | (si)->tot_segs++; \ |
e1235983 | 2054 | if (type == SUM_TYPE_DATA) { \ |
39a53e0c | 2055 | si->data_segs++; \ |
e1235983 CL |
2056 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2057 | } else { \ | |
39a53e0c | 2058 | si->node_segs++; \ |
e1235983 CL |
2059 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2060 | } \ | |
39a53e0c JK |
2061 | } while (0) |
2062 | ||
2063 | #define stat_inc_tot_blk_count(si, blks) \ | |
2064 | (si->tot_blks += (blks)) | |
2065 | ||
e1235983 | 2066 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2067 | do { \ |
963d4f7d | 2068 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2069 | stat_inc_tot_blk_count(si, blks); \ |
2070 | si->data_blks += (blks); \ | |
e1235983 | 2071 | si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2072 | } while (0) |
2073 | ||
e1235983 | 2074 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2075 | do { \ |
963d4f7d | 2076 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2077 | stat_inc_tot_blk_count(si, blks); \ |
2078 | si->node_blks += (blks); \ | |
e1235983 | 2079 | si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2080 | } while (0) |
2081 | ||
2082 | int f2fs_build_stats(struct f2fs_sb_info *); | |
2083 | void f2fs_destroy_stats(struct f2fs_sb_info *); | |
787c7b8c | 2084 | int __init f2fs_create_root_stats(void); |
4589d25d | 2085 | void f2fs_destroy_root_stats(void); |
39a53e0c | 2086 | #else |
942e0be6 | 2087 | #define stat_inc_cp_count(si) |
42190d2a | 2088 | #define stat_inc_bg_cp_count(si) |
39a53e0c | 2089 | #define stat_inc_call_count(si) |
dcdfff65 | 2090 | #define stat_inc_bggc_count(si) |
33fbd510 CY |
2091 | #define stat_inc_dirty_inode(sbi, type) |
2092 | #define stat_dec_dirty_inode(sbi, type) | |
dcdfff65 | 2093 | #define stat_inc_total_hit(sb) |
029e13cc | 2094 | #define stat_inc_rbtree_node_hit(sb) |
91c481ff CY |
2095 | #define stat_inc_largest_node_hit(sbi) |
2096 | #define stat_inc_cached_node_hit(sbi) | |
d5e8f6c9 CY |
2097 | #define stat_inc_inline_xattr(inode) |
2098 | #define stat_dec_inline_xattr(inode) | |
0dbdc2ae JK |
2099 | #define stat_inc_inline_inode(inode) |
2100 | #define stat_dec_inline_inode(inode) | |
3289c061 JK |
2101 | #define stat_inc_inline_dir(inode) |
2102 | #define stat_dec_inline_dir(inode) | |
dcdfff65 JK |
2103 | #define stat_inc_seg_type(sbi, curseg) |
2104 | #define stat_inc_block_count(sbi, curseg) | |
b9a2c252 | 2105 | #define stat_inc_inplace_blocks(sbi) |
e1235983 | 2106 | #define stat_inc_seg_count(sbi, type, gc_type) |
39a53e0c | 2107 | #define stat_inc_tot_blk_count(si, blks) |
e1235983 CL |
2108 | #define stat_inc_data_blk_count(sbi, blks, gc_type) |
2109 | #define stat_inc_node_blk_count(sbi, blks, gc_type) | |
39a53e0c JK |
2110 | |
2111 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
2112 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
787c7b8c | 2113 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
4589d25d | 2114 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
2115 | #endif |
2116 | ||
2117 | extern const struct file_operations f2fs_dir_operations; | |
2118 | extern const struct file_operations f2fs_file_operations; | |
2119 | extern const struct inode_operations f2fs_file_inode_operations; | |
2120 | extern const struct address_space_operations f2fs_dblock_aops; | |
2121 | extern const struct address_space_operations f2fs_node_aops; | |
2122 | extern const struct address_space_operations f2fs_meta_aops; | |
2123 | extern const struct inode_operations f2fs_dir_inode_operations; | |
2124 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
cbaf042a | 2125 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
39a53e0c | 2126 | extern const struct inode_operations f2fs_special_inode_operations; |
29e7043f | 2127 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 2128 | |
e18c65b2 HL |
2129 | /* |
2130 | * inline.c | |
2131 | */ | |
01b960e9 JK |
2132 | bool f2fs_may_inline_data(struct inode *); |
2133 | bool f2fs_may_inline_dentry(struct inode *); | |
b3d208f9 | 2134 | void read_inline_data(struct page *, struct page *); |
0bfcfcca | 2135 | bool truncate_inline_inode(struct page *, u64); |
e18c65b2 | 2136 | int f2fs_read_inline_data(struct inode *, struct page *); |
b3d208f9 JK |
2137 | int f2fs_convert_inline_page(struct dnode_of_data *, struct page *); |
2138 | int f2fs_convert_inline_inode(struct inode *); | |
2139 | int f2fs_write_inline_data(struct inode *, struct page *); | |
0342fd30 | 2140 | bool recover_inline_data(struct inode *, struct page *); |
6e22c691 | 2141 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *, |
0b81d077 | 2142 | struct fscrypt_name *, struct page **); |
201a05be CY |
2143 | struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *, struct page **); |
2144 | int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); | |
510022a8 JK |
2145 | int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *, |
2146 | nid_t, umode_t); | |
201a05be CY |
2147 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, |
2148 | struct inode *, struct inode *); | |
2149 | bool f2fs_empty_inline_dir(struct inode *); | |
d8c6822a | 2150 | int f2fs_read_inline_dir(struct file *, struct dir_context *, |
0b81d077 | 2151 | struct fscrypt_str *); |
67f8cf3c JK |
2152 | int f2fs_inline_data_fiemap(struct inode *, |
2153 | struct fiemap_extent_info *, __u64, __u64); | |
cde4de12 | 2154 | |
2658e50d JK |
2155 | /* |
2156 | * shrinker.c | |
2157 | */ | |
2158 | unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *); | |
2159 | unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *); | |
2160 | void f2fs_join_shrinker(struct f2fs_sb_info *); | |
2161 | void f2fs_leave_shrinker(struct f2fs_sb_info *); | |
2162 | ||
a28ef1f5 CY |
2163 | /* |
2164 | * extent_cache.c | |
2165 | */ | |
2166 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); | |
ed3d1256 | 2167 | bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); |
a28ef1f5 CY |
2168 | unsigned int f2fs_destroy_extent_node(struct inode *); |
2169 | void f2fs_destroy_extent_tree(struct inode *); | |
2170 | bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *); | |
2171 | void f2fs_update_extent_cache(struct dnode_of_data *); | |
19b2c30d CY |
2172 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
2173 | pgoff_t, block_t, unsigned int); | |
a28ef1f5 CY |
2174 | void init_extent_cache_info(struct f2fs_sb_info *); |
2175 | int __init create_extent_cache(void); | |
2176 | void destroy_extent_cache(void); | |
2177 | ||
cde4de12 JK |
2178 | /* |
2179 | * crypto support | |
2180 | */ | |
0b81d077 | 2181 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
cde4de12 | 2182 | { |
cde4de12 | 2183 | return file_is_encrypt(inode); |
cde4de12 JK |
2184 | } |
2185 | ||
2186 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
2187 | { | |
2188 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2189 | file_set_encrypt(inode); | |
2190 | #endif | |
2191 | } | |
2192 | ||
2193 | static inline bool f2fs_bio_encrypted(struct bio *bio) | |
2194 | { | |
0b81d077 | 2195 | return bio->bi_private != NULL; |
cde4de12 JK |
2196 | } |
2197 | ||
2198 | static inline int f2fs_sb_has_crypto(struct super_block *sb) | |
2199 | { | |
cde4de12 | 2200 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
cde4de12 | 2201 | } |
f424f664 | 2202 | |
fcc85a4d JK |
2203 | static inline bool f2fs_may_encrypt(struct inode *inode) |
2204 | { | |
2205 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
886f56f9 | 2206 | umode_t mode = inode->i_mode; |
fcc85a4d JK |
2207 | |
2208 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
2209 | #else | |
2210 | return 0; | |
2211 | #endif | |
2212 | } | |
2213 | ||
0b81d077 JK |
2214 | #ifndef CONFIG_F2FS_FS_ENCRYPTION |
2215 | #define fscrypt_set_d_op(i) | |
2216 | #define fscrypt_get_ctx fscrypt_notsupp_get_ctx | |
2217 | #define fscrypt_release_ctx fscrypt_notsupp_release_ctx | |
2218 | #define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page | |
2219 | #define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page | |
2220 | #define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages | |
2221 | #define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page | |
2222 | #define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page | |
2223 | #define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range | |
2224 | #define fscrypt_process_policy fscrypt_notsupp_process_policy | |
2225 | #define fscrypt_get_policy fscrypt_notsupp_get_policy | |
2226 | #define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context | |
2227 | #define fscrypt_inherit_context fscrypt_notsupp_inherit_context | |
2228 | #define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info | |
2229 | #define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info | |
2230 | #define fscrypt_setup_filename fscrypt_notsupp_setup_filename | |
2231 | #define fscrypt_free_filename fscrypt_notsupp_free_filename | |
2232 | #define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size | |
2233 | #define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer | |
2234 | #define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer | |
2235 | #define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr | |
2236 | #define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk | |
57e5055b | 2237 | #endif |
39a53e0c | 2238 | #endif |