Commit | Line | Data |
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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, | |
43 | FAULT_MAX, | |
44 | }; | |
45 | ||
46 | extern u32 f2fs_fault_rate; | |
47 | extern atomic_t f2fs_ops; | |
48 | extern char *fault_name[FAULT_MAX]; | |
49 | ||
50 | static inline bool time_to_inject(int type) | |
51 | { | |
52 | atomic_inc(&f2fs_ops); | |
53 | if (f2fs_fault_rate && (atomic_read(&f2fs_ops) >= f2fs_fault_rate)) { | |
54 | atomic_set(&f2fs_ops, 0); | |
55 | printk("%sF2FS-fs : inject %s in %pF\n", | |
56 | KERN_INFO, | |
57 | fault_name[type], | |
58 | __builtin_return_address(0)); | |
59 | return true; | |
60 | } | |
61 | return false; | |
62 | } | |
63 | #endif | |
64 | ||
39a53e0c JK |
65 | /* |
66 | * For mount options | |
67 | */ | |
68 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
69 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
70 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
71 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
72 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
73 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
74 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 75 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 76 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
34d67deb CY |
77 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
78 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
79 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
d5053a34 | 80 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
89672159 | 81 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
6aefd93b | 82 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
343f40f0 | 83 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 |
73faec4d | 84 | #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 |
39a53e0c JK |
85 | |
86 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) | |
87 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) | |
88 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) | |
89 | ||
90 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
91 | typecheck(unsigned long long, b) && \ | |
92 | ((long long)((a) - (b)) > 0)) | |
93 | ||
a9841c4d JK |
94 | typedef u32 block_t; /* |
95 | * should not change u32, since it is the on-disk block | |
96 | * address format, __le32. | |
97 | */ | |
39a53e0c JK |
98 | typedef u32 nid_t; |
99 | ||
100 | struct f2fs_mount_info { | |
101 | unsigned int opt; | |
102 | }; | |
103 | ||
cde4de12 JK |
104 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
105 | ||
76f105a2 JK |
106 | #define F2FS_HAS_FEATURE(sb, mask) \ |
107 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) | |
108 | #define F2FS_SET_FEATURE(sb, mask) \ | |
109 | F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask) | |
110 | #define F2FS_CLEAR_FEATURE(sb, mask) \ | |
111 | F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) | |
112 | ||
39a53e0c JK |
113 | /* |
114 | * For checkpoint manager | |
115 | */ | |
116 | enum { | |
117 | NAT_BITMAP, | |
118 | SIT_BITMAP | |
119 | }; | |
120 | ||
75ab4cb8 JK |
121 | enum { |
122 | CP_UMOUNT, | |
119ee914 | 123 | CP_FASTBOOT, |
75ab4cb8 | 124 | CP_SYNC, |
10027551 | 125 | CP_RECOVERY, |
4b2fecc8 | 126 | CP_DISCARD, |
75ab4cb8 JK |
127 | }; |
128 | ||
bba681cb JK |
129 | #define DEF_BATCHED_TRIM_SECTIONS 32 |
130 | #define BATCHED_TRIM_SEGMENTS(sbi) \ | |
131 | (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) | |
a66cdd98 JK |
132 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
133 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
60b99b48 | 134 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
d0239e1b | 135 | #define DEF_IDLE_INTERVAL 120 /* 2 mins */ |
bba681cb | 136 | |
75ab4cb8 JK |
137 | struct cp_control { |
138 | int reason; | |
4b2fecc8 JK |
139 | __u64 trim_start; |
140 | __u64 trim_end; | |
141 | __u64 trim_minlen; | |
142 | __u64 trimmed; | |
75ab4cb8 JK |
143 | }; |
144 | ||
662befda | 145 | /* |
81c1a0f1 | 146 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
147 | */ |
148 | enum { | |
149 | META_CP, | |
150 | META_NAT, | |
81c1a0f1 | 151 | META_SIT, |
4c521f49 JK |
152 | META_SSA, |
153 | META_POR, | |
662befda CY |
154 | }; |
155 | ||
6451e041 JK |
156 | /* for the list of ino */ |
157 | enum { | |
158 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
159 | APPEND_INO, /* for append ino list */ |
160 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
161 | MAX_INO_ENTRY, /* max. list */ |
162 | }; | |
163 | ||
164 | struct ino_entry { | |
39a53e0c JK |
165 | struct list_head list; /* list head */ |
166 | nid_t ino; /* inode number */ | |
167 | }; | |
168 | ||
2710fd7e | 169 | /* for the list of inodes to be GCed */ |
06292073 | 170 | struct inode_entry { |
39a53e0c JK |
171 | struct list_head list; /* list head */ |
172 | struct inode *inode; /* vfs inode pointer */ | |
173 | }; | |
174 | ||
7fd9e544 JK |
175 | /* for the list of blockaddresses to be discarded */ |
176 | struct discard_entry { | |
177 | struct list_head list; /* list head */ | |
178 | block_t blkaddr; /* block address to be discarded */ | |
179 | int len; /* # of consecutive blocks of the discard */ | |
180 | }; | |
181 | ||
39a53e0c JK |
182 | /* for the list of fsync inodes, used only during recovery */ |
183 | struct fsync_inode_entry { | |
184 | struct list_head list; /* list head */ | |
185 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
186 | block_t blkaddr; /* block address locating the last fsync */ |
187 | block_t last_dentry; /* block address locating the last dentry */ | |
39a53e0c JK |
188 | }; |
189 | ||
dfc08a12 CY |
190 | #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats)) |
191 | #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits)) | |
39a53e0c | 192 | |
dfc08a12 CY |
193 | #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne) |
194 | #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid) | |
195 | #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se) | |
196 | #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno) | |
39a53e0c | 197 | |
dfc08a12 CY |
198 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
199 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) | |
309cc2b6 | 200 | |
dfc08a12 | 201 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 202 | { |
dfc08a12 CY |
203 | int before = nats_in_cursum(journal); |
204 | journal->n_nats = cpu_to_le16(before + i); | |
39a53e0c JK |
205 | return before; |
206 | } | |
207 | ||
dfc08a12 | 208 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 209 | { |
dfc08a12 CY |
210 | int before = sits_in_cursum(journal); |
211 | journal->n_sits = cpu_to_le16(before + i); | |
39a53e0c JK |
212 | return before; |
213 | } | |
214 | ||
dfc08a12 CY |
215 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
216 | int size, int type) | |
184a5cd2 CY |
217 | { |
218 | if (type == NAT_JOURNAL) | |
dfc08a12 CY |
219 | return size <= MAX_NAT_JENTRIES(journal); |
220 | return size <= MAX_SIT_JENTRIES(journal); | |
184a5cd2 CY |
221 | } |
222 | ||
e9750824 NJ |
223 | /* |
224 | * ioctl commands | |
225 | */ | |
88b88a66 JK |
226 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
227 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 228 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
229 | |
230 | #define F2FS_IOCTL_MAGIC 0xf5 | |
231 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
232 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 233 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
234 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
235 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
c1c1b583 | 236 | #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6) |
456b88e4 | 237 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
d323d005 | 238 | #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8) |
e9750824 | 239 | |
0b81d077 JK |
240 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
241 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY | |
242 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT | |
f424f664 | 243 | |
1abff93d JK |
244 | /* |
245 | * should be same as XFS_IOC_GOINGDOWN. | |
246 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
247 | */ | |
248 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
249 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
250 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
251 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
c912a829 | 252 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
1abff93d | 253 | |
e9750824 NJ |
254 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
255 | /* | |
256 | * ioctl commands in 32 bit emulation | |
257 | */ | |
04ef4b62 CY |
258 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
259 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
260 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION | |
e9750824 NJ |
261 | #endif |
262 | ||
d323d005 CY |
263 | struct f2fs_defragment { |
264 | u64 start; | |
265 | u64 len; | |
266 | }; | |
267 | ||
39a53e0c JK |
268 | /* |
269 | * For INODE and NODE manager | |
270 | */ | |
7b3cd7d6 JK |
271 | /* for directory operations */ |
272 | struct f2fs_dentry_ptr { | |
d8c6822a | 273 | struct inode *inode; |
7b3cd7d6 JK |
274 | const void *bitmap; |
275 | struct f2fs_dir_entry *dentry; | |
276 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
277 | int max; | |
278 | }; | |
279 | ||
d8c6822a JK |
280 | static inline void make_dentry_ptr(struct inode *inode, |
281 | struct f2fs_dentry_ptr *d, void *src, int type) | |
7b3cd7d6 | 282 | { |
d8c6822a JK |
283 | d->inode = inode; |
284 | ||
7b3cd7d6 JK |
285 | if (type == 1) { |
286 | struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src; | |
287 | d->max = NR_DENTRY_IN_BLOCK; | |
288 | d->bitmap = &t->dentry_bitmap; | |
289 | d->dentry = t->dentry; | |
290 | d->filename = t->filename; | |
291 | } else { | |
292 | struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src; | |
293 | d->max = NR_INLINE_DENTRY; | |
294 | d->bitmap = &t->dentry_bitmap; | |
295 | d->dentry = t->dentry; | |
296 | d->filename = t->filename; | |
297 | } | |
298 | } | |
299 | ||
dbe6a5ff JK |
300 | /* |
301 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
302 | * as its node offset to distinguish from index node blocks. | |
303 | * But some bits are used to mark the node block. | |
304 | */ | |
305 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
306 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
307 | enum { |
308 | ALLOC_NODE, /* allocate a new node page if needed */ | |
309 | LOOKUP_NODE, /* look up a node without readahead */ | |
310 | LOOKUP_NODE_RA, /* | |
311 | * look up a node with readahead called | |
4f4124d0 | 312 | * by get_data_block. |
39a53e0c | 313 | */ |
266e97a8 JK |
314 | }; |
315 | ||
a6db67f0 | 316 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
39a53e0c | 317 | |
817202d9 CY |
318 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
319 | ||
13054c54 CY |
320 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
321 | #define EXT_TREE_VEC_SIZE 64 | |
322 | ||
39a53e0c | 323 | /* for in-memory extent cache entry */ |
13054c54 CY |
324 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
325 | ||
326 | /* number of extent info in extent cache we try to shrink */ | |
327 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 328 | |
39a53e0c | 329 | struct extent_info { |
13054c54 CY |
330 | unsigned int fofs; /* start offset in a file */ |
331 | u32 blk; /* start block address of the extent */ | |
332 | unsigned int len; /* length of the extent */ | |
333 | }; | |
334 | ||
335 | struct extent_node { | |
336 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
337 | struct list_head list; /* node in global extent list of sbi */ | |
338 | struct extent_info ei; /* extent info */ | |
201ef5e0 | 339 | struct extent_tree *et; /* extent tree pointer */ |
13054c54 CY |
340 | }; |
341 | ||
342 | struct extent_tree { | |
343 | nid_t ino; /* inode number */ | |
344 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 345 | struct extent_node *cached_en; /* recently accessed extent node */ |
3e72f721 | 346 | struct extent_info largest; /* largested extent info */ |
137d09f0 | 347 | struct list_head list; /* to be used by sbi->zombie_list */ |
13054c54 | 348 | rwlock_t lock; /* protect extent info rb-tree */ |
68e35385 | 349 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
39a53e0c JK |
350 | }; |
351 | ||
003a3e1d JK |
352 | /* |
353 | * This structure is taken from ext4_map_blocks. | |
354 | * | |
355 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
356 | */ | |
357 | #define F2FS_MAP_NEW (1 << BH_New) | |
358 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
7f63eb77 JK |
359 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
360 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
361 | F2FS_MAP_UNWRITTEN) | |
003a3e1d JK |
362 | |
363 | struct f2fs_map_blocks { | |
364 | block_t m_pblk; | |
365 | block_t m_lblk; | |
366 | unsigned int m_len; | |
367 | unsigned int m_flags; | |
da85985c | 368 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
003a3e1d JK |
369 | }; |
370 | ||
e2b4e2bc CY |
371 | /* for flag in get_data_block */ |
372 | #define F2FS_GET_BLOCK_READ 0 | |
373 | #define F2FS_GET_BLOCK_DIO 1 | |
374 | #define F2FS_GET_BLOCK_FIEMAP 2 | |
375 | #define F2FS_GET_BLOCK_BMAP 3 | |
b439b103 | 376 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
24b84912 | 377 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
e2b4e2bc | 378 | |
39a53e0c JK |
379 | /* |
380 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
381 | */ | |
382 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 383 | #define FADVISE_LOST_PINO_BIT 0x02 |
cde4de12 | 384 | #define FADVISE_ENCRYPT_BIT 0x04 |
e7d55452 | 385 | #define FADVISE_ENC_NAME_BIT 0x08 |
39a53e0c | 386 | |
b5492af7 JK |
387 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
388 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
389 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
390 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
391 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
392 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
cde4de12 JK |
393 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
394 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
395 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
e7d55452 JK |
396 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
397 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
cde4de12 | 398 | |
ab9fa662 JK |
399 | #define DEF_DIR_LEVEL 0 |
400 | ||
39a53e0c JK |
401 | struct f2fs_inode_info { |
402 | struct inode vfs_inode; /* serve a vfs inode */ | |
403 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
404 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 405 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 406 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 407 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
408 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
409 | ||
410 | /* Use below internally in f2fs*/ | |
411 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 412 | struct rw_semaphore i_sem; /* protect fi info */ |
a7ffdbe2 | 413 | atomic_t dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
414 | f2fs_hash_t chash; /* hash value of given file name */ |
415 | unsigned int clevel; /* maximum level of given file name */ | |
416 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
e518ff81 | 417 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
88b88a66 | 418 | |
2710fd7e | 419 | struct list_head dirty_list; /* linked in global dirty list */ |
88b88a66 JK |
420 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
421 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
3e72f721 | 422 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
39a53e0c JK |
423 | }; |
424 | ||
425 | static inline void get_extent_info(struct extent_info *ext, | |
426 | struct f2fs_extent i_ext) | |
427 | { | |
39a53e0c | 428 | ext->fofs = le32_to_cpu(i_ext.fofs); |
4d0b0bd4 | 429 | ext->blk = le32_to_cpu(i_ext.blk); |
39a53e0c | 430 | ext->len = le32_to_cpu(i_ext.len); |
39a53e0c JK |
431 | } |
432 | ||
433 | static inline void set_raw_extent(struct extent_info *ext, | |
434 | struct f2fs_extent *i_ext) | |
435 | { | |
39a53e0c | 436 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 437 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 438 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
439 | } |
440 | ||
429511cd CY |
441 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
442 | u32 blk, unsigned int len) | |
443 | { | |
444 | ei->fofs = fofs; | |
445 | ei->blk = blk; | |
446 | ei->len = len; | |
447 | } | |
448 | ||
0bdee482 CY |
449 | static inline bool __is_extent_same(struct extent_info *ei1, |
450 | struct extent_info *ei2) | |
451 | { | |
452 | return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && | |
453 | ei1->len == ei2->len); | |
454 | } | |
455 | ||
429511cd CY |
456 | static inline bool __is_extent_mergeable(struct extent_info *back, |
457 | struct extent_info *front) | |
458 | { | |
459 | return (back->fofs + back->len == front->fofs && | |
460 | back->blk + back->len == front->blk); | |
461 | } | |
462 | ||
463 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
464 | struct extent_info *back) | |
465 | { | |
466 | return __is_extent_mergeable(back, cur); | |
467 | } | |
468 | ||
469 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
470 | struct extent_info *front) | |
471 | { | |
472 | return __is_extent_mergeable(cur, front); | |
473 | } | |
474 | ||
4abd3f5a CY |
475 | static inline void __try_update_largest_extent(struct extent_tree *et, |
476 | struct extent_node *en) | |
477 | { | |
478 | if (en->ei.len > et->largest.len) | |
479 | et->largest = en->ei; | |
480 | } | |
481 | ||
39a53e0c JK |
482 | struct f2fs_nm_info { |
483 | block_t nat_blkaddr; /* base disk address of NAT */ | |
484 | nid_t max_nid; /* maximum possible node ids */ | |
7ee0eeab | 485 | nid_t available_nids; /* maximum available node ids */ |
39a53e0c | 486 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 487 | unsigned int ram_thresh; /* control the memory footprint */ |
ea1a29a0 | 488 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
2304cb0c | 489 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
39a53e0c JK |
490 | |
491 | /* NAT cache management */ | |
492 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 493 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
8b26ef98 | 494 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 495 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 496 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 497 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
39a53e0c JK |
498 | |
499 | /* free node ids management */ | |
8a7ed66a | 500 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
39a53e0c JK |
501 | struct list_head free_nid_list; /* a list for free nids */ |
502 | spinlock_t free_nid_list_lock; /* protect free nid list */ | |
503 | unsigned int fcnt; /* the number of free node id */ | |
504 | struct mutex build_lock; /* lock for build free nids */ | |
505 | ||
506 | /* for checkpoint */ | |
507 | char *nat_bitmap; /* NAT bitmap pointer */ | |
508 | int bitmap_size; /* bitmap size */ | |
509 | }; | |
510 | ||
511 | /* | |
512 | * this structure is used as one of function parameters. | |
513 | * all the information are dedicated to a given direct node block determined | |
514 | * by the data offset in a file. | |
515 | */ | |
516 | struct dnode_of_data { | |
517 | struct inode *inode; /* vfs inode pointer */ | |
518 | struct page *inode_page; /* its inode page, NULL is possible */ | |
519 | struct page *node_page; /* cached direct node page */ | |
520 | nid_t nid; /* node id of the direct node block */ | |
521 | unsigned int ofs_in_node; /* data offset in the node page */ | |
522 | bool inode_page_locked; /* inode page is locked or not */ | |
93bae099 | 523 | bool node_changed; /* is node block changed */ |
3cf45747 CY |
524 | char cur_level; /* level of hole node page */ |
525 | char max_level; /* level of current page located */ | |
39a53e0c JK |
526 | block_t data_blkaddr; /* block address of the node block */ |
527 | }; | |
528 | ||
529 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
530 | struct page *ipage, struct page *npage, nid_t nid) | |
531 | { | |
d66d1f76 | 532 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
533 | dn->inode = inode; |
534 | dn->inode_page = ipage; | |
535 | dn->node_page = npage; | |
536 | dn->nid = nid; | |
39a53e0c JK |
537 | } |
538 | ||
539 | /* | |
540 | * For SIT manager | |
541 | * | |
542 | * By default, there are 6 active log areas across the whole main area. | |
543 | * When considering hot and cold data separation to reduce cleaning overhead, | |
544 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
545 | * respectively. | |
546 | * In the current design, you should not change the numbers intentionally. | |
547 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
548 | * logs individually according to the underlying devices. (default: 6) | |
549 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
550 | * data and 8 for node logs. | |
551 | */ | |
552 | #define NR_CURSEG_DATA_TYPE (3) | |
553 | #define NR_CURSEG_NODE_TYPE (3) | |
554 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
555 | ||
556 | enum { | |
557 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
558 | CURSEG_WARM_DATA, /* data blocks */ | |
559 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
560 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
561 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
562 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 JK |
563 | NO_CHECK_TYPE, |
564 | CURSEG_DIRECT_IO, /* to use for the direct IO path */ | |
39a53e0c JK |
565 | }; |
566 | ||
6b4afdd7 | 567 | struct flush_cmd { |
6b4afdd7 | 568 | struct completion wait; |
721bd4d5 | 569 | struct llist_node llnode; |
6b4afdd7 JK |
570 | int ret; |
571 | }; | |
572 | ||
a688b9d9 GZ |
573 | struct flush_cmd_control { |
574 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
575 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
721bd4d5 GZ |
576 | struct llist_head issue_list; /* list for command issue */ |
577 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
578 | }; |
579 | ||
39a53e0c JK |
580 | struct f2fs_sm_info { |
581 | struct sit_info *sit_info; /* whole segment information */ | |
582 | struct free_segmap_info *free_info; /* free segment information */ | |
583 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
584 | struct curseg_info *curseg_array; /* active segment information */ | |
585 | ||
39a53e0c JK |
586 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
587 | block_t main_blkaddr; /* start block address of main area */ | |
588 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
589 | ||
590 | unsigned int segment_count; /* total # of segments */ | |
591 | unsigned int main_segments; /* # of segments in main area */ | |
592 | unsigned int reserved_segments; /* # of reserved segments */ | |
593 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
594 | |
595 | /* a threshold to reclaim prefree segments */ | |
596 | unsigned int rec_prefree_segments; | |
7fd9e544 JK |
597 | |
598 | /* for small discard management */ | |
599 | struct list_head discard_list; /* 4KB discard list */ | |
600 | int nr_discards; /* # of discards in the list */ | |
601 | int max_discards; /* max. discards to be issued */ | |
216fbd64 | 602 | |
bba681cb JK |
603 | /* for batched trimming */ |
604 | unsigned int trim_sections; /* # of sections to trim */ | |
605 | ||
184a5cd2 CY |
606 | struct list_head sit_entry_set; /* sit entry set list */ |
607 | ||
216fbd64 JK |
608 | unsigned int ipu_policy; /* in-place-update policy */ |
609 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 610 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
6b4afdd7 JK |
611 | |
612 | /* for flush command control */ | |
a688b9d9 GZ |
613 | struct flush_cmd_control *cmd_control_info; |
614 | ||
39a53e0c JK |
615 | }; |
616 | ||
39a53e0c JK |
617 | /* |
618 | * For superblock | |
619 | */ | |
620 | /* | |
621 | * COUNT_TYPE for monitoring | |
622 | * | |
623 | * f2fs monitors the number of several block types such as on-writeback, | |
624 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
625 | */ | |
626 | enum count_type { | |
627 | F2FS_WRITEBACK, | |
628 | F2FS_DIRTY_DENTS, | |
c227f912 | 629 | F2FS_DIRTY_DATA, |
39a53e0c JK |
630 | F2FS_DIRTY_NODES, |
631 | F2FS_DIRTY_META, | |
8dcf2ff7 | 632 | F2FS_INMEM_PAGES, |
39a53e0c JK |
633 | NR_COUNT_TYPE, |
634 | }; | |
635 | ||
39a53e0c | 636 | /* |
e1c42045 | 637 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
638 | * The available types are: |
639 | * DATA User data pages. It operates as async mode. | |
640 | * NODE Node pages. It operates as async mode. | |
641 | * META FS metadata pages such as SIT, NAT, CP. | |
642 | * NR_PAGE_TYPE The number of page types. | |
643 | * META_FLUSH Make sure the previous pages are written | |
644 | * with waiting the bio's completion | |
645 | * ... Only can be used with META. | |
646 | */ | |
7d5e5109 | 647 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
648 | enum page_type { |
649 | DATA, | |
650 | NODE, | |
651 | META, | |
652 | NR_PAGE_TYPE, | |
653 | META_FLUSH, | |
8ce67cb0 JK |
654 | INMEM, /* the below types are used by tracepoints only. */ |
655 | INMEM_DROP, | |
28bc106b | 656 | INMEM_REVOKE, |
8ce67cb0 JK |
657 | IPU, |
658 | OPU, | |
39a53e0c JK |
659 | }; |
660 | ||
458e6197 | 661 | struct f2fs_io_info { |
05ca3632 | 662 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 GZ |
663 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
664 | int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */ | |
7a9d7548 | 665 | block_t new_blkaddr; /* new block address to be written */ |
28bc106b | 666 | block_t old_blkaddr; /* old block address before Cow */ |
05ca3632 | 667 | struct page *page; /* page to be written */ |
4375a336 | 668 | struct page *encrypted_page; /* encrypted page */ |
458e6197 JK |
669 | }; |
670 | ||
93dfe2ac | 671 | #define is_read_io(rw) (((rw) & 1) == READ) |
1ff7bd3b | 672 | struct f2fs_bio_info { |
458e6197 | 673 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
674 | struct bio *bio; /* bios to merge */ |
675 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 676 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 677 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
678 | }; |
679 | ||
c227f912 CY |
680 | enum inode_type { |
681 | DIR_INODE, /* for dirty dir inode */ | |
682 | FILE_INODE, /* for dirty regular/symlink inode */ | |
683 | NR_INODE_TYPE, | |
684 | }; | |
685 | ||
67298804 CY |
686 | /* for inner inode cache management */ |
687 | struct inode_management { | |
688 | struct radix_tree_root ino_root; /* ino entry array */ | |
689 | spinlock_t ino_lock; /* for ino entry lock */ | |
690 | struct list_head ino_list; /* inode list head */ | |
691 | unsigned long ino_num; /* number of entries */ | |
692 | }; | |
693 | ||
caf0047e CY |
694 | /* For s_flag in struct f2fs_sb_info */ |
695 | enum { | |
696 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
697 | SBI_IS_CLOSE, /* specify unmounting */ | |
698 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
699 | SBI_POR_DOING, /* recovery is doing or not */ | |
df728b0f | 700 | SBI_NEED_SB_WRITE, /* need to recover superblock */ |
caf0047e CY |
701 | }; |
702 | ||
6beceb54 JK |
703 | enum { |
704 | CP_TIME, | |
d0239e1b | 705 | REQ_TIME, |
6beceb54 JK |
706 | MAX_TIME, |
707 | }; | |
708 | ||
39a53e0c JK |
709 | struct f2fs_sb_info { |
710 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 711 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c | 712 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
e8240f65 | 713 | int valid_super_block; /* valid super block no */ |
caf0047e | 714 | int s_flag; /* flags for sbi */ |
39a53e0c JK |
715 | |
716 | /* for node-related operations */ | |
717 | struct f2fs_nm_info *nm_info; /* node manager */ | |
718 | struct inode *node_inode; /* cache node blocks */ | |
719 | ||
720 | /* for segment-related operations */ | |
721 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
722 | |
723 | /* for bio operations */ | |
924b720b | 724 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 725 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
39a53e0c JK |
726 | |
727 | /* for checkpoint */ | |
728 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
729 | struct inode *meta_inode; /* cache meta blocks */ | |
39936837 | 730 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
e479556b | 731 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 732 | struct rw_semaphore node_write; /* locking node writes */ |
5463e7c1 | 733 | struct mutex writepages; /* mutex for writepages() */ |
fb51b5ef | 734 | wait_queue_head_t cp_wait; |
6beceb54 JK |
735 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
736 | long interval_time[MAX_TIME]; /* to store thresholds */ | |
39a53e0c | 737 | |
67298804 | 738 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
739 | |
740 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 741 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c | 742 | |
c227f912 CY |
743 | /* for inode management */ |
744 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ | |
745 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ | |
39a53e0c | 746 | |
13054c54 CY |
747 | /* for extent tree cache */ |
748 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
749 | struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ | |
750 | struct list_head extent_list; /* lru list for shrinker */ | |
751 | spinlock_t extent_lock; /* locking extent lru list */ | |
7441ccef | 752 | atomic_t total_ext_tree; /* extent tree count */ |
137d09f0 | 753 | struct list_head zombie_list; /* extent zombie tree list */ |
74fd8d99 | 754 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
13054c54 CY |
755 | atomic_t total_ext_node; /* extent info count */ |
756 | ||
e1c42045 | 757 | /* basic filesystem units */ |
39a53e0c JK |
758 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
759 | unsigned int log_blocksize; /* log2 block size */ | |
760 | unsigned int blocksize; /* block size */ | |
761 | unsigned int root_ino_num; /* root inode number*/ | |
762 | unsigned int node_ino_num; /* node inode number*/ | |
763 | unsigned int meta_ino_num; /* meta inode number*/ | |
764 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
765 | unsigned int blocks_per_seg; /* blocks per segment */ | |
766 | unsigned int segs_per_sec; /* segments per section */ | |
767 | unsigned int secs_per_zone; /* sections per zone */ | |
768 | unsigned int total_sections; /* total section count */ | |
769 | unsigned int total_node_count; /* total node block count */ | |
770 | unsigned int total_valid_node_count; /* valid node block count */ | |
771 | unsigned int total_valid_inode_count; /* valid inode count */ | |
e0afc4d6 | 772 | loff_t max_file_blocks; /* max block index of file */ |
39a53e0c | 773 | int active_logs; /* # of active logs */ |
ab9fa662 | 774 | int dir_level; /* directory level */ |
39a53e0c JK |
775 | |
776 | block_t user_block_count; /* # of user blocks */ | |
777 | block_t total_valid_block_count; /* # of valid blocks */ | |
778 | block_t alloc_valid_block_count; /* # of allocated blocks */ | |
a66cdd98 | 779 | block_t discard_blks; /* discard command candidats */ |
39a53e0c JK |
780 | block_t last_valid_block_count; /* for recovery */ |
781 | u32 s_next_generation; /* for NFS support */ | |
782 | atomic_t nr_pages[NR_COUNT_TYPE]; /* # of pages, see count_type */ | |
783 | ||
784 | struct f2fs_mount_info mount_opt; /* mount options */ | |
785 | ||
786 | /* for cleaning operations */ | |
787 | struct mutex gc_mutex; /* mutex for GC */ | |
788 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 789 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 790 | |
b1c57c1c JK |
791 | /* maximum # of trials to find a victim segment for SSR and GC */ |
792 | unsigned int max_victim_search; | |
793 | ||
39a53e0c JK |
794 | /* |
795 | * for stat information. | |
796 | * one is for the LFS mode, and the other is for the SSR mode. | |
797 | */ | |
35b09d82 | 798 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
799 | struct f2fs_stat_info *stat_info; /* FS status information */ |
800 | unsigned int segment_count[2]; /* # of allocated segments */ | |
801 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 802 | atomic_t inplace_count; /* # of inplace update */ |
5b7ee374 CY |
803 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
804 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
805 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
806 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
d5e8f6c9 | 807 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
03e14d52 CY |
808 | atomic_t inline_inode; /* # of inline_data inodes */ |
809 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
39a53e0c | 810 | int bg_gc; /* background gc calls */ |
33fbd510 | 811 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
35b09d82 NJ |
812 | #endif |
813 | unsigned int last_victim[2]; /* last victim segment # */ | |
39a53e0c | 814 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
815 | |
816 | /* For sysfs suppport */ | |
817 | struct kobject s_kobj; | |
818 | struct completion s_kobj_unregister; | |
2658e50d JK |
819 | |
820 | /* For shrinker support */ | |
821 | struct list_head s_list; | |
822 | struct mutex umount_mutex; | |
823 | unsigned int shrinker_run_no; | |
8f1dbbbb SL |
824 | |
825 | /* For write statistics */ | |
826 | u64 sectors_written_start; | |
827 | u64 kbytes_written; | |
43b6573b KM |
828 | |
829 | /* Reference to checksum algorithm driver via cryptoapi */ | |
830 | struct crypto_shash *s_chksum_driver; | |
39a53e0c JK |
831 | }; |
832 | ||
8f1dbbbb SL |
833 | /* For write statistics. Suppose sector size is 512 bytes, |
834 | * and the return value is in kbytes. s is of struct f2fs_sb_info. | |
835 | */ | |
836 | #define BD_PART_WRITTEN(s) \ | |
837 | (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \ | |
838 | s->sectors_written_start) >> 1) | |
839 | ||
6beceb54 JK |
840 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
841 | { | |
842 | sbi->last_time[type] = jiffies; | |
843 | } | |
844 | ||
845 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) | |
846 | { | |
847 | struct timespec ts = {sbi->interval_time[type], 0}; | |
848 | unsigned long interval = timespec_to_jiffies(&ts); | |
849 | ||
850 | return time_after(jiffies, sbi->last_time[type] + interval); | |
851 | } | |
852 | ||
d0239e1b JK |
853 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
854 | { | |
855 | struct block_device *bdev = sbi->sb->s_bdev; | |
856 | struct request_queue *q = bdev_get_queue(bdev); | |
857 | struct request_list *rl = &q->root_rl; | |
858 | ||
859 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) | |
860 | return 0; | |
861 | ||
862 | return f2fs_time_over(sbi, REQ_TIME); | |
863 | } | |
864 | ||
39a53e0c JK |
865 | /* |
866 | * Inline functions | |
867 | */ | |
43b6573b KM |
868 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
869 | unsigned int length) | |
870 | { | |
871 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); | |
872 | u32 *ctx = (u32 *)shash_desc_ctx(shash); | |
873 | int err; | |
874 | ||
875 | shash->tfm = sbi->s_chksum_driver; | |
876 | shash->flags = 0; | |
877 | *ctx = F2FS_SUPER_MAGIC; | |
878 | ||
879 | err = crypto_shash_update(shash, address, length); | |
880 | BUG_ON(err); | |
881 | ||
882 | return *ctx; | |
883 | } | |
884 | ||
885 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, | |
886 | void *buf, size_t buf_size) | |
887 | { | |
888 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; | |
889 | } | |
890 | ||
39a53e0c JK |
891 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
892 | { | |
893 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
894 | } | |
895 | ||
896 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
897 | { | |
898 | return sb->s_fs_info; | |
899 | } | |
900 | ||
4081363f JK |
901 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
902 | { | |
903 | return F2FS_SB(inode->i_sb); | |
904 | } | |
905 | ||
906 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
907 | { | |
908 | return F2FS_I_SB(mapping->host); | |
909 | } | |
910 | ||
911 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
912 | { | |
913 | return F2FS_M_SB(page->mapping); | |
914 | } | |
915 | ||
39a53e0c JK |
916 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
917 | { | |
918 | return (struct f2fs_super_block *)(sbi->raw_super); | |
919 | } | |
920 | ||
921 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
922 | { | |
923 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
924 | } | |
925 | ||
45590710 GZ |
926 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
927 | { | |
928 | return (struct f2fs_node *)page_address(page); | |
929 | } | |
930 | ||
58bfaf44 JK |
931 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
932 | { | |
933 | return &((struct f2fs_node *)page_address(page))->i; | |
934 | } | |
935 | ||
39a53e0c JK |
936 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
937 | { | |
938 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
939 | } | |
940 | ||
941 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
942 | { | |
943 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
944 | } | |
945 | ||
946 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
947 | { | |
948 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
949 | } | |
950 | ||
951 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
952 | { | |
953 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
954 | } | |
955 | ||
956 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
957 | { | |
958 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
959 | } | |
960 | ||
9df27d98 GZ |
961 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
962 | { | |
963 | return sbi->meta_inode->i_mapping; | |
964 | } | |
965 | ||
4ef51a8f JK |
966 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
967 | { | |
968 | return sbi->node_inode->i_mapping; | |
969 | } | |
970 | ||
caf0047e CY |
971 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
972 | { | |
973 | return sbi->s_flag & (0x01 << type); | |
974 | } | |
975 | ||
976 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 977 | { |
caf0047e | 978 | sbi->s_flag |= (0x01 << type); |
39a53e0c JK |
979 | } |
980 | ||
caf0047e | 981 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 982 | { |
caf0047e | 983 | sbi->s_flag &= ~(0x01 << type); |
39a53e0c JK |
984 | } |
985 | ||
d71b5564 JK |
986 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
987 | { | |
988 | return le64_to_cpu(cp->checkpoint_ver); | |
989 | } | |
990 | ||
25ca923b JK |
991 | static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
992 | { | |
993 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
994 | return ckpt_flags & f; | |
995 | } | |
996 | ||
997 | static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
998 | { | |
999 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1000 | ckpt_flags |= f; | |
1001 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1002 | } | |
1003 | ||
1004 | static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1005 | { | |
1006 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1007 | ckpt_flags &= (~f); | |
1008 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1009 | } | |
1010 | ||
e479556b | 1011 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 1012 | { |
e479556b | 1013 | down_read(&sbi->cp_rwsem); |
39936837 JK |
1014 | } |
1015 | ||
e479556b | 1016 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 1017 | { |
e479556b | 1018 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
1019 | } |
1020 | ||
e479556b | 1021 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 1022 | { |
59692b7c | 1023 | down_write(&sbi->cp_rwsem); |
39936837 JK |
1024 | } |
1025 | ||
e479556b | 1026 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 1027 | { |
e479556b | 1028 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
1029 | } |
1030 | ||
119ee914 JK |
1031 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
1032 | { | |
1033 | int reason = CP_SYNC; | |
1034 | ||
1035 | if (test_opt(sbi, FASTBOOT)) | |
1036 | reason = CP_FASTBOOT; | |
1037 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
1038 | reason = CP_UMOUNT; | |
1039 | return reason; | |
1040 | } | |
1041 | ||
1042 | static inline bool __remain_node_summaries(int reason) | |
1043 | { | |
1044 | return (reason == CP_UMOUNT || reason == CP_FASTBOOT); | |
1045 | } | |
1046 | ||
1047 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
1048 | { | |
1049 | return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || | |
1050 | is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); | |
1051 | } | |
1052 | ||
39a53e0c JK |
1053 | /* |
1054 | * Check whether the given nid is within node id range. | |
1055 | */ | |
064e0823 | 1056 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 1057 | { |
d6b7d4b3 CY |
1058 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
1059 | return -EINVAL; | |
cfb271d4 | 1060 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
1061 | return -EINVAL; |
1062 | return 0; | |
39a53e0c JK |
1063 | } |
1064 | ||
1065 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
1066 | ||
1067 | /* | |
1068 | * Check whether the inode has blocks or not | |
1069 | */ | |
1070 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1071 | { | |
1072 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 1073 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 1074 | else |
6c311ec6 | 1075 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
1076 | } |
1077 | ||
4bc8e9bc CY |
1078 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
1079 | { | |
1080 | return ofs == XATTR_NODE_OFFSET; | |
1081 | } | |
1082 | ||
39a53e0c JK |
1083 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
1084 | struct inode *inode, blkcnt_t count) | |
1085 | { | |
1086 | block_t valid_block_count; | |
1087 | ||
1088 | spin_lock(&sbi->stat_lock); | |
1089 | valid_block_count = | |
1090 | sbi->total_valid_block_count + (block_t)count; | |
cfb271d4 | 1091 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1092 | spin_unlock(&sbi->stat_lock); |
1093 | return false; | |
1094 | } | |
1095 | inode->i_blocks += count; | |
1096 | sbi->total_valid_block_count = valid_block_count; | |
1097 | sbi->alloc_valid_block_count += (block_t)count; | |
1098 | spin_unlock(&sbi->stat_lock); | |
1099 | return true; | |
1100 | } | |
1101 | ||
da19b0dc | 1102 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
1103 | struct inode *inode, |
1104 | blkcnt_t count) | |
1105 | { | |
1106 | spin_lock(&sbi->stat_lock); | |
9850cf4a JK |
1107 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
1108 | f2fs_bug_on(sbi, inode->i_blocks < count); | |
39a53e0c JK |
1109 | inode->i_blocks -= count; |
1110 | sbi->total_valid_block_count -= (block_t)count; | |
1111 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1112 | } |
1113 | ||
1114 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1115 | { | |
1116 | atomic_inc(&sbi->nr_pages[count_type]); | |
caf0047e | 1117 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
1118 | } |
1119 | ||
a7ffdbe2 | 1120 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 1121 | { |
a7ffdbe2 | 1122 | atomic_inc(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1123 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1124 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1125 | } |
1126 | ||
1127 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1128 | { | |
1129 | atomic_dec(&sbi->nr_pages[count_type]); | |
1130 | } | |
1131 | ||
a7ffdbe2 | 1132 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 1133 | { |
5ac9f36f CY |
1134 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1135 | !S_ISLNK(inode->i_mode)) | |
1fe54f9d JK |
1136 | return; |
1137 | ||
a7ffdbe2 | 1138 | atomic_dec(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1139 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1140 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1141 | } |
1142 | ||
1143 | static inline int get_pages(struct f2fs_sb_info *sbi, int count_type) | |
1144 | { | |
1145 | return atomic_read(&sbi->nr_pages[count_type]); | |
1146 | } | |
1147 | ||
a7ffdbe2 | 1148 | static inline int get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1149 | { |
a7ffdbe2 | 1150 | return atomic_read(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1151 | } |
1152 | ||
5ac206cf NJ |
1153 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1154 | { | |
3519e3f9 | 1155 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
5ac206cf NJ |
1156 | return ((get_pages(sbi, block_type) + pages_per_sec - 1) |
1157 | >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; | |
1158 | } | |
1159 | ||
39a53e0c JK |
1160 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1161 | { | |
8b8343fa | 1162 | return sbi->total_valid_block_count; |
39a53e0c JK |
1163 | } |
1164 | ||
1165 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) | |
1166 | { | |
1167 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1168 | ||
1169 | /* return NAT or SIT bitmap */ | |
1170 | if (flag == NAT_BITMAP) | |
1171 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1172 | else if (flag == SIT_BITMAP) | |
1173 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1174 | ||
1175 | return 0; | |
1176 | } | |
1177 | ||
55141486 WL |
1178 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1179 | { | |
1180 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1181 | } | |
1182 | ||
39a53e0c JK |
1183 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1184 | { | |
1185 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1186 | int offset; |
1187 | ||
55141486 | 1188 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1189 | if (flag == NAT_BITMAP) |
1190 | return &ckpt->sit_nat_version_bitmap; | |
1191 | else | |
65b85ccc | 1192 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1193 | } else { |
1194 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1195 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1196 | return &ckpt->sit_nat_version_bitmap + offset; |
1197 | } | |
39a53e0c JK |
1198 | } |
1199 | ||
1200 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1201 | { | |
1202 | block_t start_addr; | |
1203 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d71b5564 | 1204 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
39a53e0c | 1205 | |
25ca923b | 1206 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c JK |
1207 | |
1208 | /* | |
1209 | * odd numbered checkpoint should at cp segment 0 | |
e1c42045 | 1210 | * and even segment must be at cp segment 1 |
39a53e0c JK |
1211 | */ |
1212 | if (!(ckpt_version & 1)) | |
1213 | start_addr += sbi->blocks_per_seg; | |
1214 | ||
1215 | return start_addr; | |
1216 | } | |
1217 | ||
1218 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
1219 | { | |
1220 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1221 | } | |
1222 | ||
1223 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1224 | struct inode *inode) |
39a53e0c JK |
1225 | { |
1226 | block_t valid_block_count; | |
1227 | unsigned int valid_node_count; | |
1228 | ||
1229 | spin_lock(&sbi->stat_lock); | |
1230 | ||
ef86d709 | 1231 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 1232 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1233 | spin_unlock(&sbi->stat_lock); |
1234 | return false; | |
1235 | } | |
1236 | ||
ef86d709 | 1237 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1238 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1239 | spin_unlock(&sbi->stat_lock); |
1240 | return false; | |
1241 | } | |
1242 | ||
1243 | if (inode) | |
ef86d709 GZ |
1244 | inode->i_blocks++; |
1245 | ||
1246 | sbi->alloc_valid_block_count++; | |
1247 | sbi->total_valid_node_count++; | |
1248 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1249 | spin_unlock(&sbi->stat_lock); |
1250 | ||
1251 | return true; | |
1252 | } | |
1253 | ||
1254 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1255 | struct inode *inode) |
39a53e0c JK |
1256 | { |
1257 | spin_lock(&sbi->stat_lock); | |
1258 | ||
9850cf4a JK |
1259 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1260 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1261 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1262 | |
ef86d709 GZ |
1263 | inode->i_blocks--; |
1264 | sbi->total_valid_node_count--; | |
1265 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1266 | |
1267 | spin_unlock(&sbi->stat_lock); | |
1268 | } | |
1269 | ||
1270 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1271 | { | |
8b8343fa | 1272 | return sbi->total_valid_node_count; |
39a53e0c JK |
1273 | } |
1274 | ||
1275 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1276 | { | |
1277 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1278 | f2fs_bug_on(sbi, sbi->total_valid_inode_count == sbi->total_node_count); |
39a53e0c JK |
1279 | sbi->total_valid_inode_count++; |
1280 | spin_unlock(&sbi->stat_lock); | |
1281 | } | |
1282 | ||
0e80220a | 1283 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c JK |
1284 | { |
1285 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1286 | f2fs_bug_on(sbi, !sbi->total_valid_inode_count); |
39a53e0c JK |
1287 | sbi->total_valid_inode_count--; |
1288 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1289 | } |
1290 | ||
1291 | static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) | |
1292 | { | |
8b8343fa | 1293 | return sbi->total_valid_inode_count; |
39a53e0c JK |
1294 | } |
1295 | ||
a56c7c6f JK |
1296 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
1297 | pgoff_t index, bool for_write) | |
1298 | { | |
1299 | if (!for_write) | |
1300 | return grab_cache_page(mapping, index); | |
1301 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); | |
1302 | } | |
1303 | ||
6e2c64ad JK |
1304 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
1305 | { | |
1306 | char *src_kaddr = kmap(src); | |
1307 | char *dst_kaddr = kmap(dst); | |
1308 | ||
1309 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); | |
1310 | kunmap(dst); | |
1311 | kunmap(src); | |
1312 | } | |
1313 | ||
39a53e0c JK |
1314 | static inline void f2fs_put_page(struct page *page, int unlock) |
1315 | { | |
031fa8cc | 1316 | if (!page) |
39a53e0c JK |
1317 | return; |
1318 | ||
1319 | if (unlock) { | |
9850cf4a | 1320 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1321 | unlock_page(page); |
1322 | } | |
09cbfeaf | 1323 | put_page(page); |
39a53e0c JK |
1324 | } |
1325 | ||
1326 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1327 | { | |
1328 | if (dn->node_page) | |
1329 | f2fs_put_page(dn->node_page, 1); | |
1330 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1331 | f2fs_put_page(dn->inode_page, 0); | |
1332 | dn->node_page = NULL; | |
1333 | dn->inode_page = NULL; | |
1334 | } | |
1335 | ||
1336 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1337 | size_t size) |
39a53e0c | 1338 | { |
e8512d2e | 1339 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1340 | } |
1341 | ||
7bd59381 GZ |
1342 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1343 | gfp_t flags) | |
1344 | { | |
1345 | void *entry; | |
7bd59381 | 1346 | |
80c54505 JK |
1347 | entry = kmem_cache_alloc(cachep, flags); |
1348 | if (!entry) | |
1349 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
7bd59381 GZ |
1350 | return entry; |
1351 | } | |
1352 | ||
740432f8 JK |
1353 | static inline struct bio *f2fs_bio_alloc(int npages) |
1354 | { | |
1355 | struct bio *bio; | |
1356 | ||
1357 | /* No failure on bio allocation */ | |
740432f8 | 1358 | bio = bio_alloc(GFP_NOIO, npages); |
80c54505 JK |
1359 | if (!bio) |
1360 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); | |
740432f8 JK |
1361 | return bio; |
1362 | } | |
1363 | ||
9be32d72 JK |
1364 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1365 | unsigned long index, void *item) | |
1366 | { | |
1367 | while (radix_tree_insert(root, index, item)) | |
1368 | cond_resched(); | |
1369 | } | |
1370 | ||
39a53e0c JK |
1371 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1372 | ||
1373 | static inline bool IS_INODE(struct page *page) | |
1374 | { | |
45590710 | 1375 | struct f2fs_node *p = F2FS_NODE(page); |
39a53e0c JK |
1376 | return RAW_IS_INODE(p); |
1377 | } | |
1378 | ||
1379 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1380 | { | |
1381 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1382 | } | |
1383 | ||
1384 | static inline block_t datablock_addr(struct page *node_page, | |
1385 | unsigned int offset) | |
1386 | { | |
1387 | struct f2fs_node *raw_node; | |
1388 | __le32 *addr_array; | |
45590710 | 1389 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1390 | addr_array = blkaddr_in_node(raw_node); |
1391 | return le32_to_cpu(addr_array[offset]); | |
1392 | } | |
1393 | ||
1394 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1395 | { | |
1396 | int mask; | |
1397 | ||
1398 | addr += (nr >> 3); | |
1399 | mask = 1 << (7 - (nr & 0x07)); | |
1400 | return mask & *addr; | |
1401 | } | |
1402 | ||
a66cdd98 JK |
1403 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1404 | { | |
1405 | int mask; | |
1406 | ||
1407 | addr += (nr >> 3); | |
1408 | mask = 1 << (7 - (nr & 0x07)); | |
1409 | *addr |= mask; | |
1410 | } | |
1411 | ||
1412 | static inline void f2fs_clear_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 | ||
52aca074 | 1421 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1422 | { |
1423 | int mask; | |
1424 | int ret; | |
1425 | ||
1426 | addr += (nr >> 3); | |
1427 | mask = 1 << (7 - (nr & 0x07)); | |
1428 | ret = mask & *addr; | |
1429 | *addr |= mask; | |
1430 | return ret; | |
1431 | } | |
1432 | ||
52aca074 | 1433 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1434 | { |
1435 | int mask; | |
1436 | int ret; | |
1437 | ||
1438 | addr += (nr >> 3); | |
1439 | mask = 1 << (7 - (nr & 0x07)); | |
1440 | ret = mask & *addr; | |
1441 | *addr &= ~mask; | |
1442 | return ret; | |
1443 | } | |
1444 | ||
c6ac4c0e GZ |
1445 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1446 | { | |
1447 | int mask; | |
1448 | ||
1449 | addr += (nr >> 3); | |
1450 | mask = 1 << (7 - (nr & 0x07)); | |
1451 | *addr ^= mask; | |
1452 | } | |
1453 | ||
39a53e0c JK |
1454 | /* used for f2fs_inode_info->flags */ |
1455 | enum { | |
1456 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1457 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
ed57c27f | 1458 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1459 | FI_INC_LINK, /* need to increment i_nlink */ |
1460 | FI_ACL_MODE, /* indicate acl mode */ | |
1461 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
c9b63bd0 | 1462 | FI_FREE_NID, /* free allocated nide */ |
699489bb | 1463 | FI_UPDATE_DIR, /* should update inode block for consistency */ |
74d0b917 | 1464 | FI_DELAY_IPUT, /* used for the recovery */ |
c11abd1a | 1465 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1466 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1467 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1468 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1469 | FI_APPEND_WRITE, /* inode has appended data */ |
1470 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1471 | FI_NEED_IPU, /* used for ipu per file */ |
1472 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
02a1335f | 1473 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1474 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1475 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1476 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1477 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
d323d005 | 1478 | FI_DO_DEFRAG, /* indicate defragment is running */ |
c227f912 | 1479 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
39a53e0c JK |
1480 | }; |
1481 | ||
1482 | static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1483 | { | |
61e0f2d0 JK |
1484 | if (!test_bit(flag, &fi->flags)) |
1485 | set_bit(flag, &fi->flags); | |
39a53e0c JK |
1486 | } |
1487 | ||
1488 | static inline int is_inode_flag_set(struct f2fs_inode_info *fi, int flag) | |
1489 | { | |
1490 | return test_bit(flag, &fi->flags); | |
1491 | } | |
1492 | ||
1493 | static inline void clear_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1494 | { | |
61e0f2d0 JK |
1495 | if (test_bit(flag, &fi->flags)) |
1496 | clear_bit(flag, &fi->flags); | |
39a53e0c JK |
1497 | } |
1498 | ||
1499 | static inline void set_acl_inode(struct f2fs_inode_info *fi, umode_t mode) | |
1500 | { | |
1501 | fi->i_acl_mode = mode; | |
1502 | set_inode_flag(fi, FI_ACL_MODE); | |
1503 | } | |
1504 | ||
444c580f JK |
1505 | static inline void get_inline_info(struct f2fs_inode_info *fi, |
1506 | struct f2fs_inode *ri) | |
1507 | { | |
1508 | if (ri->i_inline & F2FS_INLINE_XATTR) | |
1509 | set_inode_flag(fi, FI_INLINE_XATTR); | |
1001b347 HL |
1510 | if (ri->i_inline & F2FS_INLINE_DATA) |
1511 | set_inode_flag(fi, FI_INLINE_DATA); | |
34d67deb CY |
1512 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
1513 | set_inode_flag(fi, FI_INLINE_DENTRY); | |
b3d208f9 JK |
1514 | if (ri->i_inline & F2FS_DATA_EXIST) |
1515 | set_inode_flag(fi, FI_DATA_EXIST); | |
510022a8 JK |
1516 | if (ri->i_inline & F2FS_INLINE_DOTS) |
1517 | set_inode_flag(fi, FI_INLINE_DOTS); | |
444c580f JK |
1518 | } |
1519 | ||
1520 | static inline void set_raw_inline(struct f2fs_inode_info *fi, | |
1521 | struct f2fs_inode *ri) | |
1522 | { | |
1523 | ri->i_inline = 0; | |
1524 | ||
1525 | if (is_inode_flag_set(fi, FI_INLINE_XATTR)) | |
1526 | ri->i_inline |= F2FS_INLINE_XATTR; | |
1001b347 HL |
1527 | if (is_inode_flag_set(fi, FI_INLINE_DATA)) |
1528 | ri->i_inline |= F2FS_INLINE_DATA; | |
34d67deb CY |
1529 | if (is_inode_flag_set(fi, FI_INLINE_DENTRY)) |
1530 | ri->i_inline |= F2FS_INLINE_DENTRY; | |
b3d208f9 JK |
1531 | if (is_inode_flag_set(fi, FI_DATA_EXIST)) |
1532 | ri->i_inline |= F2FS_DATA_EXIST; | |
510022a8 JK |
1533 | if (is_inode_flag_set(fi, FI_INLINE_DOTS)) |
1534 | ri->i_inline |= F2FS_INLINE_DOTS; | |
444c580f JK |
1535 | } |
1536 | ||
987c7c31 CY |
1537 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1538 | { | |
1539 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR); | |
1540 | } | |
1541 | ||
81ca7350 | 1542 | static inline unsigned int addrs_per_inode(struct inode *inode) |
de93653f | 1543 | { |
81ca7350 | 1544 | if (f2fs_has_inline_xattr(inode)) |
de93653f JK |
1545 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1546 | return DEF_ADDRS_PER_INODE; | |
1547 | } | |
1548 | ||
65985d93 JK |
1549 | static inline void *inline_xattr_addr(struct page *page) |
1550 | { | |
695fd1ed | 1551 | struct f2fs_inode *ri = F2FS_INODE(page); |
65985d93 JK |
1552 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1553 | F2FS_INLINE_XATTR_ADDRS]); | |
1554 | } | |
1555 | ||
1556 | static inline int inline_xattr_size(struct inode *inode) | |
1557 | { | |
987c7c31 | 1558 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1559 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1560 | else | |
1561 | return 0; | |
1562 | } | |
1563 | ||
0dbdc2ae JK |
1564 | static inline int f2fs_has_inline_data(struct inode *inode) |
1565 | { | |
1566 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DATA); | |
1567 | } | |
1568 | ||
b3d208f9 JK |
1569 | static inline void f2fs_clear_inline_inode(struct inode *inode) |
1570 | { | |
1571 | clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA); | |
1572 | clear_inode_flag(F2FS_I(inode), FI_DATA_EXIST); | |
1573 | } | |
1574 | ||
1575 | static inline int f2fs_exist_data(struct inode *inode) | |
1576 | { | |
1577 | return is_inode_flag_set(F2FS_I(inode), FI_DATA_EXIST); | |
1578 | } | |
1579 | ||
510022a8 JK |
1580 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1581 | { | |
1582 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DOTS); | |
1583 | } | |
1584 | ||
88b88a66 JK |
1585 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1586 | { | |
1587 | return is_inode_flag_set(F2FS_I(inode), FI_ATOMIC_FILE); | |
1588 | } | |
1589 | ||
02a1335f JK |
1590 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
1591 | { | |
1592 | return is_inode_flag_set(F2FS_I(inode), FI_VOLATILE_FILE); | |
1593 | } | |
1594 | ||
3c6c2beb JK |
1595 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
1596 | { | |
1597 | return is_inode_flag_set(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN); | |
1598 | } | |
1599 | ||
1e84371f JK |
1600 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
1601 | { | |
1602 | return is_inode_flag_set(F2FS_I(inode), FI_DROP_CACHE); | |
1603 | } | |
1604 | ||
1001b347 HL |
1605 | static inline void *inline_data_addr(struct page *page) |
1606 | { | |
695fd1ed | 1607 | struct f2fs_inode *ri = F2FS_INODE(page); |
1001b347 HL |
1608 | return (void *)&(ri->i_addr[1]); |
1609 | } | |
1610 | ||
34d67deb CY |
1611 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
1612 | { | |
1613 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DENTRY); | |
1614 | } | |
1615 | ||
9486ba44 JK |
1616 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
1617 | { | |
1618 | if (!f2fs_has_inline_dentry(dir)) | |
1619 | kunmap(page); | |
1620 | } | |
1621 | ||
b5492af7 JK |
1622 | static inline int is_file(struct inode *inode, int type) |
1623 | { | |
1624 | return F2FS_I(inode)->i_advise & type; | |
1625 | } | |
1626 | ||
1627 | static inline void set_file(struct inode *inode, int type) | |
1628 | { | |
1629 | F2FS_I(inode)->i_advise |= type; | |
1630 | } | |
1631 | ||
1632 | static inline void clear_file(struct inode *inode, int type) | |
1633 | { | |
1634 | F2FS_I(inode)->i_advise &= ~type; | |
1635 | } | |
1636 | ||
77888c1e JK |
1637 | static inline int f2fs_readonly(struct super_block *sb) |
1638 | { | |
1639 | return sb->s_flags & MS_RDONLY; | |
1640 | } | |
1641 | ||
1e968fdf JK |
1642 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
1643 | { | |
1644 | return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1645 | } | |
1646 | ||
744602cf JK |
1647 | static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi) |
1648 | { | |
1649 | set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1650 | sbi->sb->s_flags |= MS_RDONLY; | |
1651 | } | |
1652 | ||
eaa693f4 JK |
1653 | static inline bool is_dot_dotdot(const struct qstr *str) |
1654 | { | |
1655 | if (str->len == 1 && str->name[0] == '.') | |
1656 | return true; | |
1657 | ||
1658 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
1659 | return true; | |
1660 | ||
1661 | return false; | |
1662 | } | |
1663 | ||
3e72f721 JK |
1664 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
1665 | { | |
3e72f721 JK |
1666 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
1667 | is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) | |
1668 | return false; | |
1669 | ||
886f56f9 | 1670 | return S_ISREG(inode->i_mode); |
3e72f721 JK |
1671 | } |
1672 | ||
0414b004 JK |
1673 | static inline void *f2fs_kmalloc(size_t size, gfp_t flags) |
1674 | { | |
2c63fead JK |
1675 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1676 | if (time_to_inject(FAULT_KMALLOC)) | |
1677 | return NULL; | |
1678 | #endif | |
0414b004 JK |
1679 | return kmalloc(size, flags); |
1680 | } | |
1681 | ||
39307a8e JK |
1682 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
1683 | { | |
1684 | void *ret; | |
1685 | ||
1686 | ret = kmalloc(size, flags | __GFP_NOWARN); | |
1687 | if (!ret) | |
1688 | ret = __vmalloc(size, flags, PAGE_KERNEL); | |
1689 | return ret; | |
1690 | } | |
1691 | ||
1692 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) | |
1693 | { | |
1694 | void *ret; | |
1695 | ||
1696 | ret = kzalloc(size, flags | __GFP_NOWARN); | |
1697 | if (!ret) | |
1698 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); | |
1699 | return ret; | |
1700 | } | |
1701 | ||
a6dda0e6 CH |
1702 | #define get_inode_mode(i) \ |
1703 | ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ | |
1704 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) | |
1705 | ||
267378d4 | 1706 | /* get offset of first page in next direct node */ |
81ca7350 CY |
1707 | #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \ |
1708 | ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \ | |
1709 | (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \ | |
1710 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode)) | |
267378d4 | 1711 | |
39a53e0c JK |
1712 | /* |
1713 | * file.c | |
1714 | */ | |
1715 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); | |
1716 | void truncate_data_blocks(struct dnode_of_data *); | |
764aa3e9 | 1717 | int truncate_blocks(struct inode *, u64, bool); |
b0154891 | 1718 | int f2fs_truncate(struct inode *, bool); |
2d4d9fb5 | 1719 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
39a53e0c JK |
1720 | int f2fs_setattr(struct dentry *, struct iattr *); |
1721 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); | |
b292dcab | 1722 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
39a53e0c | 1723 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
e9750824 | 1724 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
39a53e0c JK |
1725 | |
1726 | /* | |
1727 | * inode.c | |
1728 | */ | |
1729 | void f2fs_set_inode_flags(struct inode *); | |
39a53e0c | 1730 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
4660f9c0 | 1731 | int try_to_free_nats(struct f2fs_sb_info *, int); |
12719ae1 JK |
1732 | int update_inode(struct inode *, struct page *); |
1733 | int update_inode_page(struct inode *); | |
39a53e0c JK |
1734 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
1735 | void f2fs_evict_inode(struct inode *); | |
44c16156 | 1736 | void handle_failed_inode(struct inode *); |
39a53e0c JK |
1737 | |
1738 | /* | |
1739 | * namei.c | |
1740 | */ | |
1741 | struct dentry *f2fs_get_parent(struct dentry *child); | |
1742 | ||
1743 | /* | |
1744 | * dir.c | |
1745 | */ | |
dbeacf02 | 1746 | extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; |
510022a8 | 1747 | void set_de_type(struct f2fs_dir_entry *, umode_t); |
675f10bd | 1748 | unsigned char get_de_type(struct f2fs_dir_entry *); |
0b81d077 | 1749 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *, |
6e22c691 | 1750 | f2fs_hash_t, int *, struct f2fs_dentry_ptr *); |
7b3cd7d6 | 1751 | bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, |
0b81d077 | 1752 | unsigned int, struct fscrypt_str *); |
062a3e7b JK |
1753 | void do_make_empty_dir(struct inode *, struct inode *, |
1754 | struct f2fs_dentry_ptr *); | |
dbeacf02 | 1755 | struct page *init_inode_metadata(struct inode *, struct inode *, |
bce8d112 | 1756 | const struct qstr *, struct page *); |
dbeacf02 | 1757 | void update_parent_metadata(struct inode *, struct inode *, unsigned int); |
a82afa20 | 1758 | int room_for_filename(const void *, int, int); |
dbeacf02 | 1759 | void f2fs_drop_nlink(struct inode *, struct inode *, struct page *); |
39a53e0c JK |
1760 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *, |
1761 | struct page **); | |
1762 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); | |
1763 | ino_t f2fs_inode_by_name(struct inode *, struct qstr *); | |
1764 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, | |
1765 | struct page *, struct inode *); | |
e7d55452 | 1766 | int update_dent_inode(struct inode *, struct inode *, const struct qstr *); |
510022a8 | 1767 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, |
3b4d732a | 1768 | const struct qstr *, f2fs_hash_t , unsigned int); |
675f10bd CY |
1769 | int f2fs_add_regular_entry(struct inode *, const struct qstr *, |
1770 | struct inode *, nid_t, umode_t); | |
510022a8 JK |
1771 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, |
1772 | umode_t); | |
dbeacf02 CY |
1773 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, |
1774 | struct inode *); | |
b97a9b5d | 1775 | int f2fs_do_tmpfile(struct inode *, struct inode *); |
39a53e0c JK |
1776 | bool f2fs_empty_dir(struct inode *); |
1777 | ||
b7f7a5e0 AV |
1778 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
1779 | { | |
2b0143b5 | 1780 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 1781 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
1782 | } |
1783 | ||
39a53e0c JK |
1784 | /* |
1785 | * super.c | |
1786 | */ | |
c5bda1c8 | 1787 | int f2fs_commit_super(struct f2fs_sb_info *, bool); |
39a53e0c | 1788 | int f2fs_sync_fs(struct super_block *, int); |
a07ef784 NJ |
1789 | extern __printf(3, 4) |
1790 | void f2fs_msg(struct super_block *, const char *, const char *, ...); | |
984ec63c | 1791 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
39a53e0c JK |
1792 | |
1793 | /* | |
1794 | * hash.c | |
1795 | */ | |
eee6160f | 1796 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *); |
39a53e0c JK |
1797 | |
1798 | /* | |
1799 | * node.c | |
1800 | */ | |
1801 | struct dnode_of_data; | |
1802 | struct node_info; | |
1803 | ||
6fb03f3a | 1804 | bool available_free_memory(struct f2fs_sb_info *, int); |
2dcf51ab | 1805 | int need_dentry_mark(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1806 | bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1807 | bool need_inode_block_update(struct f2fs_sb_info *, nid_t); |
39a53e0c | 1808 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
3cf45747 | 1809 | pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t); |
39a53e0c JK |
1810 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); |
1811 | int truncate_inode_blocks(struct inode *, pgoff_t); | |
4f16fb0f | 1812 | int truncate_xattr_node(struct inode *, struct page *); |
cfe58f9d | 1813 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
13ec7297 | 1814 | int remove_inode_page(struct inode *); |
a014e037 | 1815 | struct page *new_inode_page(struct inode *); |
8ae8f162 | 1816 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
39a53e0c JK |
1817 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
1818 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); | |
1819 | struct page *get_node_page_ra(struct page *, int); | |
1820 | void sync_inode_page(struct dnode_of_data *); | |
da011cc0 | 1821 | void move_node_page(struct page *, int); |
608514de JK |
1822 | int fsync_node_pages(struct f2fs_sb_info *, nid_t, struct writeback_control *, |
1823 | bool); | |
52681375 | 1824 | int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *); |
39a53e0c JK |
1825 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); |
1826 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); | |
1827 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); | |
31696580 | 1828 | int try_to_free_nids(struct f2fs_sb_info *, int); |
70cfed88 | 1829 | void recover_inline_xattr(struct inode *, struct page *); |
1c35a90e | 1830 | void recover_xattr_data(struct inode *, struct page *, block_t); |
39a53e0c JK |
1831 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
1832 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, | |
1833 | struct f2fs_summary_block *); | |
1834 | void flush_nat_entries(struct f2fs_sb_info *); | |
1835 | int build_node_manager(struct f2fs_sb_info *); | |
1836 | void destroy_node_manager(struct f2fs_sb_info *); | |
6e6093a8 | 1837 | int __init create_node_manager_caches(void); |
39a53e0c JK |
1838 | void destroy_node_manager_caches(void); |
1839 | ||
1840 | /* | |
1841 | * segment.c | |
1842 | */ | |
88b88a66 | 1843 | void register_inmem_page(struct inode *, struct page *); |
29b96b54 CY |
1844 | void drop_inmem_pages(struct inode *); |
1845 | int commit_inmem_pages(struct inode *); | |
2c4db1a6 | 1846 | void f2fs_balance_fs(struct f2fs_sb_info *, bool); |
4660f9c0 | 1847 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
6b4afdd7 | 1848 | int f2fs_issue_flush(struct f2fs_sb_info *); |
2163d198 GZ |
1849 | int create_flush_cmd_control(struct f2fs_sb_info *); |
1850 | void destroy_flush_cmd_control(struct f2fs_sb_info *); | |
39a53e0c | 1851 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
6e2c64ad | 1852 | bool is_checkpointed_data(struct f2fs_sb_info *, block_t); |
5e443818 | 1853 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
836b5a63 | 1854 | void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); |
4b2fecc8 | 1855 | void release_discard_addrs(struct f2fs_sb_info *); |
e90c2d28 | 1856 | bool discard_next_dnode(struct f2fs_sb_info *, block_t); |
3fa06d7b | 1857 | int npages_for_summary_flush(struct f2fs_sb_info *, bool); |
39a53e0c | 1858 | void allocate_new_segments(struct f2fs_sb_info *); |
4b2fecc8 | 1859 | int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); |
39a53e0c | 1860 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); |
381722d2 | 1861 | void update_meta_page(struct f2fs_sb_info *, void *, block_t); |
577e3495 | 1862 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
05ca3632 JK |
1863 | void write_node_page(unsigned int, struct f2fs_io_info *); |
1864 | void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); | |
1865 | void rewrite_data_page(struct f2fs_io_info *); | |
4356e48e CY |
1866 | void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *, |
1867 | block_t, block_t, bool, bool); | |
528e3459 | 1868 | void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *, |
28bc106b | 1869 | block_t, block_t, unsigned char, bool, bool); |
bfad7c2d JK |
1870 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
1871 | block_t, block_t *, struct f2fs_summary *, int); | |
fec1d657 | 1872 | void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool); |
08b39fbd | 1873 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t); |
39a53e0c JK |
1874 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
1875 | void write_node_summaries(struct f2fs_sb_info *, block_t); | |
dfc08a12 | 1876 | int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int); |
4b2fecc8 | 1877 | void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); |
39a53e0c | 1878 | int build_segment_manager(struct f2fs_sb_info *); |
39a53e0c | 1879 | void destroy_segment_manager(struct f2fs_sb_info *); |
7fd9e544 JK |
1880 | int __init create_segment_manager_caches(void); |
1881 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
1882 | |
1883 | /* | |
1884 | * checkpoint.c | |
1885 | */ | |
1886 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); | |
1887 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); | |
2b947003 | 1888 | struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t); |
f0c9cada | 1889 | bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); |
26879fb1 | 1890 | int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool); |
635aee1f | 1891 | void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); |
39a53e0c | 1892 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
a49324f1 CY |
1893 | void add_ino_entry(struct f2fs_sb_info *, nid_t, int type); |
1894 | void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type); | |
1895 | void release_ino_entry(struct f2fs_sb_info *); | |
fff04f90 | 1896 | bool exist_written_data(struct f2fs_sb_info *, nid_t, int); |
cbd56e7d JK |
1897 | int acquire_orphan_inode(struct f2fs_sb_info *); |
1898 | void release_orphan_inode(struct f2fs_sb_info *); | |
39a53e0c JK |
1899 | void add_orphan_inode(struct f2fs_sb_info *, nid_t); |
1900 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); | |
8c14bfad | 1901 | int recover_orphan_inodes(struct f2fs_sb_info *); |
39a53e0c | 1902 | int get_valid_checkpoint(struct f2fs_sb_info *); |
a7ffdbe2 | 1903 | void update_dirty_page(struct inode *, struct page *); |
5deb8267 | 1904 | void add_dirty_dir_inode(struct inode *); |
c227f912 | 1905 | void remove_dirty_inode(struct inode *); |
6d5a1495 | 1906 | int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type); |
c34f42e2 | 1907 | int write_checkpoint(struct f2fs_sb_info *, struct cp_control *); |
6451e041 | 1908 | void init_ino_entry_info(struct f2fs_sb_info *); |
6e6093a8 | 1909 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
1910 | void destroy_checkpoint_caches(void); |
1911 | ||
1912 | /* | |
1913 | * data.c | |
1914 | */ | |
458e6197 | 1915 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
0c3a5797 CY |
1916 | void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *, |
1917 | struct page *, nid_t, enum page_type, int); | |
406657dd | 1918 | void f2fs_flush_merged_bios(struct f2fs_sb_info *); |
05ca3632 JK |
1919 | int f2fs_submit_page_bio(struct f2fs_io_info *); |
1920 | void f2fs_submit_page_mbio(struct f2fs_io_info *); | |
216a620a | 1921 | void set_data_blkaddr(struct dnode_of_data *); |
f28b3434 | 1922 | void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t); |
39a53e0c | 1923 | int reserve_new_block(struct dnode_of_data *); |
759af1c9 | 1924 | int f2fs_get_block(struct dnode_of_data *, pgoff_t); |
b439b103 | 1925 | ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *); |
b600965c | 1926 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
a56c7c6f | 1927 | struct page *get_read_data_page(struct inode *, pgoff_t, int, bool); |
43f3eae1 | 1928 | struct page *find_data_page(struct inode *, pgoff_t); |
a56c7c6f | 1929 | struct page *get_lock_data_page(struct inode *, pgoff_t, bool); |
64aa7ed9 | 1930 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
05ca3632 | 1931 | int do_write_data_page(struct f2fs_io_info *); |
d323d005 | 1932 | int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int); |
9ab70134 | 1933 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
487261f3 CY |
1934 | void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); |
1935 | int f2fs_release_page(struct page *, gfp_t); | |
39a53e0c JK |
1936 | |
1937 | /* | |
1938 | * gc.c | |
1939 | */ | |
1940 | int start_gc_thread(struct f2fs_sb_info *); | |
1941 | void stop_gc_thread(struct f2fs_sb_info *); | |
81ca7350 | 1942 | block_t start_bidx_of_node(unsigned int, struct inode *); |
d530d4d8 | 1943 | int f2fs_gc(struct f2fs_sb_info *, bool); |
39a53e0c | 1944 | void build_gc_manager(struct f2fs_sb_info *); |
39a53e0c JK |
1945 | |
1946 | /* | |
1947 | * recovery.c | |
1948 | */ | |
6781eabb | 1949 | int recover_fsync_data(struct f2fs_sb_info *, bool); |
39a53e0c JK |
1950 | bool space_for_roll_forward(struct f2fs_sb_info *); |
1951 | ||
1952 | /* | |
1953 | * debug.c | |
1954 | */ | |
1955 | #ifdef CONFIG_F2FS_STAT_FS | |
1956 | struct f2fs_stat_info { | |
1957 | struct list_head stat_list; | |
1958 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
1959 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
1960 | int main_area_segs, main_area_sections, main_area_zones; | |
5b7ee374 CY |
1961 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
1962 | unsigned long long hit_total, total_ext; | |
c00ba554 | 1963 | int ext_tree, zombie_tree, ext_node; |
33fbd510 CY |
1964 | int ndirty_node, ndirty_meta; |
1965 | int ndirty_dent, ndirty_dirs, ndirty_data, ndirty_files; | |
dd4e4b59 | 1966 | int nats, dirty_nats, sits, dirty_sits, fnids; |
39a53e0c | 1967 | int total_count, utilization; |
d5e8f6c9 CY |
1968 | int bg_gc, inmem_pages, wb_pages; |
1969 | int inline_xattr, inline_inode, inline_dir; | |
39a53e0c JK |
1970 | unsigned int valid_count, valid_node_count, valid_inode_count; |
1971 | unsigned int bimodal, avg_vblocks; | |
1972 | int util_free, util_valid, util_invalid; | |
1973 | int rsvd_segs, overp_segs; | |
1974 | int dirty_count, node_pages, meta_pages; | |
42190d2a | 1975 | int prefree_count, call_count, cp_count, bg_cp_count; |
39a53e0c | 1976 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 1977 | int bg_node_segs, bg_data_segs; |
39a53e0c | 1978 | int tot_blks, data_blks, node_blks; |
e1235983 | 1979 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
1980 | int curseg[NR_CURSEG_TYPE]; |
1981 | int cursec[NR_CURSEG_TYPE]; | |
1982 | int curzone[NR_CURSEG_TYPE]; | |
1983 | ||
1984 | unsigned int segment_count[2]; | |
1985 | unsigned int block_count[2]; | |
b9a2c252 | 1986 | unsigned int inplace_count; |
9edcdabf | 1987 | unsigned long long base_mem, cache_mem, page_mem; |
39a53e0c JK |
1988 | }; |
1989 | ||
963d4f7d GZ |
1990 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
1991 | { | |
6c311ec6 | 1992 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
1993 | } |
1994 | ||
942e0be6 | 1995 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
42190d2a | 1996 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
dcdfff65 JK |
1997 | #define stat_inc_call_count(si) ((si)->call_count++) |
1998 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
33fbd510 CY |
1999 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
2000 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) | |
5b7ee374 CY |
2001 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
2002 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
2003 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
2004 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
d5e8f6c9 CY |
2005 | #define stat_inc_inline_xattr(inode) \ |
2006 | do { \ | |
2007 | if (f2fs_has_inline_xattr(inode)) \ | |
2008 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2009 | } while (0) | |
2010 | #define stat_dec_inline_xattr(inode) \ | |
2011 | do { \ | |
2012 | if (f2fs_has_inline_xattr(inode)) \ | |
2013 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2014 | } while (0) | |
0dbdc2ae JK |
2015 | #define stat_inc_inline_inode(inode) \ |
2016 | do { \ | |
2017 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2018 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
2019 | } while (0) |
2020 | #define stat_dec_inline_inode(inode) \ | |
2021 | do { \ | |
2022 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2023 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 2024 | } while (0) |
3289c061 JK |
2025 | #define stat_inc_inline_dir(inode) \ |
2026 | do { \ | |
2027 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2028 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
2029 | } while (0) |
2030 | #define stat_dec_inline_dir(inode) \ | |
2031 | do { \ | |
2032 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2033 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 2034 | } while (0) |
dcdfff65 JK |
2035 | #define stat_inc_seg_type(sbi, curseg) \ |
2036 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
2037 | #define stat_inc_block_count(sbi, curseg) \ | |
2038 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
2039 | #define stat_inc_inplace_blocks(sbi) \ |
2040 | (atomic_inc(&(sbi)->inplace_count)) | |
e1235983 | 2041 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 2042 | do { \ |
963d4f7d | 2043 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c | 2044 | (si)->tot_segs++; \ |
e1235983 | 2045 | if (type == SUM_TYPE_DATA) { \ |
39a53e0c | 2046 | si->data_segs++; \ |
e1235983 CL |
2047 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2048 | } else { \ | |
39a53e0c | 2049 | si->node_segs++; \ |
e1235983 CL |
2050 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2051 | } \ | |
39a53e0c JK |
2052 | } while (0) |
2053 | ||
2054 | #define stat_inc_tot_blk_count(si, blks) \ | |
2055 | (si->tot_blks += (blks)) | |
2056 | ||
e1235983 | 2057 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2058 | do { \ |
963d4f7d | 2059 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2060 | stat_inc_tot_blk_count(si, blks); \ |
2061 | si->data_blks += (blks); \ | |
e1235983 | 2062 | si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2063 | } while (0) |
2064 | ||
e1235983 | 2065 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2066 | do { \ |
963d4f7d | 2067 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2068 | stat_inc_tot_blk_count(si, blks); \ |
2069 | si->node_blks += (blks); \ | |
e1235983 | 2070 | si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2071 | } while (0) |
2072 | ||
2073 | int f2fs_build_stats(struct f2fs_sb_info *); | |
2074 | void f2fs_destroy_stats(struct f2fs_sb_info *); | |
787c7b8c | 2075 | int __init f2fs_create_root_stats(void); |
4589d25d | 2076 | void f2fs_destroy_root_stats(void); |
39a53e0c | 2077 | #else |
942e0be6 | 2078 | #define stat_inc_cp_count(si) |
42190d2a | 2079 | #define stat_inc_bg_cp_count(si) |
39a53e0c | 2080 | #define stat_inc_call_count(si) |
dcdfff65 | 2081 | #define stat_inc_bggc_count(si) |
33fbd510 CY |
2082 | #define stat_inc_dirty_inode(sbi, type) |
2083 | #define stat_dec_dirty_inode(sbi, type) | |
dcdfff65 | 2084 | #define stat_inc_total_hit(sb) |
029e13cc | 2085 | #define stat_inc_rbtree_node_hit(sb) |
91c481ff CY |
2086 | #define stat_inc_largest_node_hit(sbi) |
2087 | #define stat_inc_cached_node_hit(sbi) | |
d5e8f6c9 CY |
2088 | #define stat_inc_inline_xattr(inode) |
2089 | #define stat_dec_inline_xattr(inode) | |
0dbdc2ae JK |
2090 | #define stat_inc_inline_inode(inode) |
2091 | #define stat_dec_inline_inode(inode) | |
3289c061 JK |
2092 | #define stat_inc_inline_dir(inode) |
2093 | #define stat_dec_inline_dir(inode) | |
dcdfff65 JK |
2094 | #define stat_inc_seg_type(sbi, curseg) |
2095 | #define stat_inc_block_count(sbi, curseg) | |
b9a2c252 | 2096 | #define stat_inc_inplace_blocks(sbi) |
e1235983 | 2097 | #define stat_inc_seg_count(sbi, type, gc_type) |
39a53e0c | 2098 | #define stat_inc_tot_blk_count(si, blks) |
e1235983 CL |
2099 | #define stat_inc_data_blk_count(sbi, blks, gc_type) |
2100 | #define stat_inc_node_blk_count(sbi, blks, gc_type) | |
39a53e0c JK |
2101 | |
2102 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
2103 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
787c7b8c | 2104 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
4589d25d | 2105 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
2106 | #endif |
2107 | ||
2108 | extern const struct file_operations f2fs_dir_operations; | |
2109 | extern const struct file_operations f2fs_file_operations; | |
2110 | extern const struct inode_operations f2fs_file_inode_operations; | |
2111 | extern const struct address_space_operations f2fs_dblock_aops; | |
2112 | extern const struct address_space_operations f2fs_node_aops; | |
2113 | extern const struct address_space_operations f2fs_meta_aops; | |
2114 | extern const struct inode_operations f2fs_dir_inode_operations; | |
2115 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
cbaf042a | 2116 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
39a53e0c | 2117 | extern const struct inode_operations f2fs_special_inode_operations; |
29e7043f | 2118 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 2119 | |
e18c65b2 HL |
2120 | /* |
2121 | * inline.c | |
2122 | */ | |
01b960e9 JK |
2123 | bool f2fs_may_inline_data(struct inode *); |
2124 | bool f2fs_may_inline_dentry(struct inode *); | |
b3d208f9 | 2125 | void read_inline_data(struct page *, struct page *); |
0bfcfcca | 2126 | bool truncate_inline_inode(struct page *, u64); |
e18c65b2 | 2127 | int f2fs_read_inline_data(struct inode *, struct page *); |
b3d208f9 JK |
2128 | int f2fs_convert_inline_page(struct dnode_of_data *, struct page *); |
2129 | int f2fs_convert_inline_inode(struct inode *); | |
2130 | int f2fs_write_inline_data(struct inode *, struct page *); | |
0342fd30 | 2131 | bool recover_inline_data(struct inode *, struct page *); |
6e22c691 | 2132 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *, |
0b81d077 | 2133 | struct fscrypt_name *, struct page **); |
201a05be CY |
2134 | struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *, struct page **); |
2135 | int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); | |
510022a8 JK |
2136 | int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *, |
2137 | nid_t, umode_t); | |
201a05be CY |
2138 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, |
2139 | struct inode *, struct inode *); | |
2140 | bool f2fs_empty_inline_dir(struct inode *); | |
d8c6822a | 2141 | int f2fs_read_inline_dir(struct file *, struct dir_context *, |
0b81d077 | 2142 | struct fscrypt_str *); |
67f8cf3c JK |
2143 | int f2fs_inline_data_fiemap(struct inode *, |
2144 | struct fiemap_extent_info *, __u64, __u64); | |
cde4de12 | 2145 | |
2658e50d JK |
2146 | /* |
2147 | * shrinker.c | |
2148 | */ | |
2149 | unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *); | |
2150 | unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *); | |
2151 | void f2fs_join_shrinker(struct f2fs_sb_info *); | |
2152 | void f2fs_leave_shrinker(struct f2fs_sb_info *); | |
2153 | ||
a28ef1f5 CY |
2154 | /* |
2155 | * extent_cache.c | |
2156 | */ | |
2157 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); | |
ed3d1256 | 2158 | bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); |
a28ef1f5 CY |
2159 | unsigned int f2fs_destroy_extent_node(struct inode *); |
2160 | void f2fs_destroy_extent_tree(struct inode *); | |
2161 | bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *); | |
2162 | void f2fs_update_extent_cache(struct dnode_of_data *); | |
19b2c30d CY |
2163 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
2164 | pgoff_t, block_t, unsigned int); | |
a28ef1f5 CY |
2165 | void init_extent_cache_info(struct f2fs_sb_info *); |
2166 | int __init create_extent_cache(void); | |
2167 | void destroy_extent_cache(void); | |
2168 | ||
cde4de12 JK |
2169 | /* |
2170 | * crypto support | |
2171 | */ | |
0b81d077 | 2172 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
cde4de12 | 2173 | { |
cde4de12 | 2174 | return file_is_encrypt(inode); |
cde4de12 JK |
2175 | } |
2176 | ||
2177 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
2178 | { | |
2179 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2180 | file_set_encrypt(inode); | |
2181 | #endif | |
2182 | } | |
2183 | ||
2184 | static inline bool f2fs_bio_encrypted(struct bio *bio) | |
2185 | { | |
0b81d077 | 2186 | return bio->bi_private != NULL; |
cde4de12 JK |
2187 | } |
2188 | ||
2189 | static inline int f2fs_sb_has_crypto(struct super_block *sb) | |
2190 | { | |
cde4de12 | 2191 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
cde4de12 | 2192 | } |
f424f664 | 2193 | |
fcc85a4d JK |
2194 | static inline bool f2fs_may_encrypt(struct inode *inode) |
2195 | { | |
2196 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
886f56f9 | 2197 | umode_t mode = inode->i_mode; |
fcc85a4d JK |
2198 | |
2199 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
2200 | #else | |
2201 | return 0; | |
2202 | #endif | |
2203 | } | |
2204 | ||
0b81d077 JK |
2205 | #ifndef CONFIG_F2FS_FS_ENCRYPTION |
2206 | #define fscrypt_set_d_op(i) | |
2207 | #define fscrypt_get_ctx fscrypt_notsupp_get_ctx | |
2208 | #define fscrypt_release_ctx fscrypt_notsupp_release_ctx | |
2209 | #define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page | |
2210 | #define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page | |
2211 | #define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages | |
2212 | #define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page | |
2213 | #define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page | |
2214 | #define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range | |
2215 | #define fscrypt_process_policy fscrypt_notsupp_process_policy | |
2216 | #define fscrypt_get_policy fscrypt_notsupp_get_policy | |
2217 | #define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context | |
2218 | #define fscrypt_inherit_context fscrypt_notsupp_inherit_context | |
2219 | #define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info | |
2220 | #define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info | |
2221 | #define fscrypt_setup_filename fscrypt_notsupp_setup_filename | |
2222 | #define fscrypt_free_filename fscrypt_notsupp_free_filename | |
2223 | #define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size | |
2224 | #define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer | |
2225 | #define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer | |
2226 | #define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr | |
2227 | #define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk | |
57e5055b | 2228 | #endif |
39a53e0c | 2229 | #endif |