Commit | Line | Data |
---|---|---|
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 | ||
39a53e0c JK |
40 | /* |
41 | * For mount options | |
42 | */ | |
43 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
44 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
45 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
46 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
47 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
48 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
49 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 50 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 51 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
34d67deb CY |
52 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
53 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
54 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
d5053a34 | 55 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
89672159 | 56 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
6aefd93b | 57 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
343f40f0 | 58 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 |
39a53e0c JK |
59 | |
60 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) | |
61 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) | |
62 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) | |
63 | ||
64 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
65 | typecheck(unsigned long long, b) && \ | |
66 | ((long long)((a) - (b)) > 0)) | |
67 | ||
a9841c4d JK |
68 | typedef u32 block_t; /* |
69 | * should not change u32, since it is the on-disk block | |
70 | * address format, __le32. | |
71 | */ | |
39a53e0c JK |
72 | typedef u32 nid_t; |
73 | ||
74 | struct f2fs_mount_info { | |
75 | unsigned int opt; | |
76 | }; | |
77 | ||
cde4de12 JK |
78 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
79 | ||
76f105a2 JK |
80 | #define F2FS_HAS_FEATURE(sb, mask) \ |
81 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) | |
82 | #define F2FS_SET_FEATURE(sb, mask) \ | |
83 | F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask) | |
84 | #define F2FS_CLEAR_FEATURE(sb, mask) \ | |
85 | F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) | |
86 | ||
39a53e0c JK |
87 | /* |
88 | * For checkpoint manager | |
89 | */ | |
90 | enum { | |
91 | NAT_BITMAP, | |
92 | SIT_BITMAP | |
93 | }; | |
94 | ||
75ab4cb8 JK |
95 | enum { |
96 | CP_UMOUNT, | |
119ee914 | 97 | CP_FASTBOOT, |
75ab4cb8 | 98 | CP_SYNC, |
10027551 | 99 | CP_RECOVERY, |
4b2fecc8 | 100 | CP_DISCARD, |
75ab4cb8 JK |
101 | }; |
102 | ||
bba681cb JK |
103 | #define DEF_BATCHED_TRIM_SECTIONS 32 |
104 | #define BATCHED_TRIM_SEGMENTS(sbi) \ | |
105 | (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) | |
a66cdd98 JK |
106 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
107 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
60b99b48 | 108 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
d0239e1b | 109 | #define DEF_IDLE_INTERVAL 120 /* 2 mins */ |
bba681cb | 110 | |
75ab4cb8 JK |
111 | struct cp_control { |
112 | int reason; | |
4b2fecc8 JK |
113 | __u64 trim_start; |
114 | __u64 trim_end; | |
115 | __u64 trim_minlen; | |
116 | __u64 trimmed; | |
75ab4cb8 JK |
117 | }; |
118 | ||
662befda | 119 | /* |
81c1a0f1 | 120 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
121 | */ |
122 | enum { | |
123 | META_CP, | |
124 | META_NAT, | |
81c1a0f1 | 125 | META_SIT, |
4c521f49 JK |
126 | META_SSA, |
127 | META_POR, | |
662befda CY |
128 | }; |
129 | ||
6451e041 JK |
130 | /* for the list of ino */ |
131 | enum { | |
132 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
133 | APPEND_INO, /* for append ino list */ |
134 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
135 | MAX_INO_ENTRY, /* max. list */ |
136 | }; | |
137 | ||
138 | struct ino_entry { | |
39a53e0c JK |
139 | struct list_head list; /* list head */ |
140 | nid_t ino; /* inode number */ | |
141 | }; | |
142 | ||
2710fd7e | 143 | /* for the list of inodes to be GCed */ |
06292073 | 144 | struct inode_entry { |
39a53e0c JK |
145 | struct list_head list; /* list head */ |
146 | struct inode *inode; /* vfs inode pointer */ | |
147 | }; | |
148 | ||
7fd9e544 JK |
149 | /* for the list of blockaddresses to be discarded */ |
150 | struct discard_entry { | |
151 | struct list_head list; /* list head */ | |
152 | block_t blkaddr; /* block address to be discarded */ | |
153 | int len; /* # of consecutive blocks of the discard */ | |
154 | }; | |
155 | ||
39a53e0c JK |
156 | /* for the list of fsync inodes, used only during recovery */ |
157 | struct fsync_inode_entry { | |
158 | struct list_head list; /* list head */ | |
159 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
160 | block_t blkaddr; /* block address locating the last fsync */ |
161 | block_t last_dentry; /* block address locating the last dentry */ | |
162 | block_t last_inode; /* block address locating the last inode */ | |
39a53e0c JK |
163 | }; |
164 | ||
dfc08a12 CY |
165 | #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats)) |
166 | #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits)) | |
39a53e0c | 167 | |
dfc08a12 CY |
168 | #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne) |
169 | #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid) | |
170 | #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se) | |
171 | #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno) | |
39a53e0c | 172 | |
dfc08a12 CY |
173 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
174 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) | |
309cc2b6 | 175 | |
dfc08a12 | 176 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 177 | { |
dfc08a12 CY |
178 | int before = nats_in_cursum(journal); |
179 | journal->n_nats = cpu_to_le16(before + i); | |
39a53e0c JK |
180 | return before; |
181 | } | |
182 | ||
dfc08a12 | 183 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 184 | { |
dfc08a12 CY |
185 | int before = sits_in_cursum(journal); |
186 | journal->n_sits = cpu_to_le16(before + i); | |
39a53e0c JK |
187 | return before; |
188 | } | |
189 | ||
dfc08a12 CY |
190 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
191 | int size, int type) | |
184a5cd2 CY |
192 | { |
193 | if (type == NAT_JOURNAL) | |
dfc08a12 CY |
194 | return size <= MAX_NAT_JENTRIES(journal); |
195 | return size <= MAX_SIT_JENTRIES(journal); | |
184a5cd2 CY |
196 | } |
197 | ||
e9750824 NJ |
198 | /* |
199 | * ioctl commands | |
200 | */ | |
88b88a66 JK |
201 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
202 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 203 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
204 | |
205 | #define F2FS_IOCTL_MAGIC 0xf5 | |
206 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
207 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 208 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
209 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
210 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
c1c1b583 | 211 | #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6) |
456b88e4 | 212 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
d323d005 | 213 | #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8) |
e9750824 | 214 | |
0b81d077 JK |
215 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
216 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY | |
217 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT | |
f424f664 | 218 | |
1abff93d JK |
219 | /* |
220 | * should be same as XFS_IOC_GOINGDOWN. | |
221 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
222 | */ | |
223 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
224 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
225 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
226 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
c912a829 | 227 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
1abff93d | 228 | |
e9750824 NJ |
229 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
230 | /* | |
231 | * ioctl commands in 32 bit emulation | |
232 | */ | |
04ef4b62 CY |
233 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
234 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
235 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION | |
e9750824 NJ |
236 | #endif |
237 | ||
d323d005 CY |
238 | struct f2fs_defragment { |
239 | u64 start; | |
240 | u64 len; | |
241 | }; | |
242 | ||
39a53e0c JK |
243 | /* |
244 | * For INODE and NODE manager | |
245 | */ | |
7b3cd7d6 JK |
246 | /* for directory operations */ |
247 | struct f2fs_dentry_ptr { | |
d8c6822a | 248 | struct inode *inode; |
7b3cd7d6 JK |
249 | const void *bitmap; |
250 | struct f2fs_dir_entry *dentry; | |
251 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
252 | int max; | |
253 | }; | |
254 | ||
d8c6822a JK |
255 | static inline void make_dentry_ptr(struct inode *inode, |
256 | struct f2fs_dentry_ptr *d, void *src, int type) | |
7b3cd7d6 | 257 | { |
d8c6822a JK |
258 | d->inode = inode; |
259 | ||
7b3cd7d6 JK |
260 | if (type == 1) { |
261 | struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src; | |
262 | d->max = NR_DENTRY_IN_BLOCK; | |
263 | d->bitmap = &t->dentry_bitmap; | |
264 | d->dentry = t->dentry; | |
265 | d->filename = t->filename; | |
266 | } else { | |
267 | struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src; | |
268 | d->max = NR_INLINE_DENTRY; | |
269 | d->bitmap = &t->dentry_bitmap; | |
270 | d->dentry = t->dentry; | |
271 | d->filename = t->filename; | |
272 | } | |
273 | } | |
274 | ||
dbe6a5ff JK |
275 | /* |
276 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
277 | * as its node offset to distinguish from index node blocks. | |
278 | * But some bits are used to mark the node block. | |
279 | */ | |
280 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
281 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
282 | enum { |
283 | ALLOC_NODE, /* allocate a new node page if needed */ | |
284 | LOOKUP_NODE, /* look up a node without readahead */ | |
285 | LOOKUP_NODE_RA, /* | |
286 | * look up a node with readahead called | |
4f4124d0 | 287 | * by get_data_block. |
39a53e0c | 288 | */ |
266e97a8 JK |
289 | }; |
290 | ||
a6db67f0 | 291 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
39a53e0c | 292 | |
817202d9 CY |
293 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
294 | ||
13054c54 CY |
295 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
296 | #define EXT_TREE_VEC_SIZE 64 | |
297 | ||
39a53e0c | 298 | /* for in-memory extent cache entry */ |
13054c54 CY |
299 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
300 | ||
301 | /* number of extent info in extent cache we try to shrink */ | |
302 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 303 | |
39a53e0c | 304 | struct extent_info { |
13054c54 CY |
305 | unsigned int fofs; /* start offset in a file */ |
306 | u32 blk; /* start block address of the extent */ | |
307 | unsigned int len; /* length of the extent */ | |
308 | }; | |
309 | ||
310 | struct extent_node { | |
311 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
312 | struct list_head list; /* node in global extent list of sbi */ | |
313 | struct extent_info ei; /* extent info */ | |
201ef5e0 | 314 | struct extent_tree *et; /* extent tree pointer */ |
13054c54 CY |
315 | }; |
316 | ||
317 | struct extent_tree { | |
318 | nid_t ino; /* inode number */ | |
319 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 320 | struct extent_node *cached_en; /* recently accessed extent node */ |
3e72f721 | 321 | struct extent_info largest; /* largested extent info */ |
137d09f0 | 322 | struct list_head list; /* to be used by sbi->zombie_list */ |
13054c54 | 323 | rwlock_t lock; /* protect extent info rb-tree */ |
68e35385 | 324 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
39a53e0c JK |
325 | }; |
326 | ||
003a3e1d JK |
327 | /* |
328 | * This structure is taken from ext4_map_blocks. | |
329 | * | |
330 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
331 | */ | |
332 | #define F2FS_MAP_NEW (1 << BH_New) | |
333 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
7f63eb77 JK |
334 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
335 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
336 | F2FS_MAP_UNWRITTEN) | |
003a3e1d JK |
337 | |
338 | struct f2fs_map_blocks { | |
339 | block_t m_pblk; | |
340 | block_t m_lblk; | |
341 | unsigned int m_len; | |
342 | unsigned int m_flags; | |
da85985c | 343 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
003a3e1d JK |
344 | }; |
345 | ||
e2b4e2bc CY |
346 | /* for flag in get_data_block */ |
347 | #define F2FS_GET_BLOCK_READ 0 | |
348 | #define F2FS_GET_BLOCK_DIO 1 | |
349 | #define F2FS_GET_BLOCK_FIEMAP 2 | |
350 | #define F2FS_GET_BLOCK_BMAP 3 | |
b439b103 | 351 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
24b84912 | 352 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
e2b4e2bc | 353 | |
39a53e0c JK |
354 | /* |
355 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
356 | */ | |
357 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 358 | #define FADVISE_LOST_PINO_BIT 0x02 |
cde4de12 | 359 | #define FADVISE_ENCRYPT_BIT 0x04 |
e7d55452 | 360 | #define FADVISE_ENC_NAME_BIT 0x08 |
39a53e0c | 361 | |
b5492af7 JK |
362 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
363 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
364 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
365 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
366 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
367 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
cde4de12 JK |
368 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
369 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
370 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
e7d55452 JK |
371 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
372 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
cde4de12 | 373 | |
ab9fa662 JK |
374 | #define DEF_DIR_LEVEL 0 |
375 | ||
39a53e0c JK |
376 | struct f2fs_inode_info { |
377 | struct inode vfs_inode; /* serve a vfs inode */ | |
378 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
379 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 380 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 381 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 382 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
383 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
384 | ||
385 | /* Use below internally in f2fs*/ | |
386 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 387 | struct rw_semaphore i_sem; /* protect fi info */ |
a7ffdbe2 | 388 | atomic_t dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
389 | f2fs_hash_t chash; /* hash value of given file name */ |
390 | unsigned int clevel; /* maximum level of given file name */ | |
391 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
e518ff81 | 392 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
88b88a66 | 393 | |
2710fd7e | 394 | struct list_head dirty_list; /* linked in global dirty list */ |
88b88a66 JK |
395 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
396 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
3e72f721 | 397 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
39a53e0c JK |
398 | }; |
399 | ||
400 | static inline void get_extent_info(struct extent_info *ext, | |
401 | struct f2fs_extent i_ext) | |
402 | { | |
39a53e0c | 403 | ext->fofs = le32_to_cpu(i_ext.fofs); |
4d0b0bd4 | 404 | ext->blk = le32_to_cpu(i_ext.blk); |
39a53e0c | 405 | ext->len = le32_to_cpu(i_ext.len); |
39a53e0c JK |
406 | } |
407 | ||
408 | static inline void set_raw_extent(struct extent_info *ext, | |
409 | struct f2fs_extent *i_ext) | |
410 | { | |
39a53e0c | 411 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 412 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 413 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
414 | } |
415 | ||
429511cd CY |
416 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
417 | u32 blk, unsigned int len) | |
418 | { | |
419 | ei->fofs = fofs; | |
420 | ei->blk = blk; | |
421 | ei->len = len; | |
422 | } | |
423 | ||
0bdee482 CY |
424 | static inline bool __is_extent_same(struct extent_info *ei1, |
425 | struct extent_info *ei2) | |
426 | { | |
427 | return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && | |
428 | ei1->len == ei2->len); | |
429 | } | |
430 | ||
429511cd CY |
431 | static inline bool __is_extent_mergeable(struct extent_info *back, |
432 | struct extent_info *front) | |
433 | { | |
434 | return (back->fofs + back->len == front->fofs && | |
435 | back->blk + back->len == front->blk); | |
436 | } | |
437 | ||
438 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
439 | struct extent_info *back) | |
440 | { | |
441 | return __is_extent_mergeable(back, cur); | |
442 | } | |
443 | ||
444 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
445 | struct extent_info *front) | |
446 | { | |
447 | return __is_extent_mergeable(cur, front); | |
448 | } | |
449 | ||
4abd3f5a CY |
450 | static inline void __try_update_largest_extent(struct extent_tree *et, |
451 | struct extent_node *en) | |
452 | { | |
453 | if (en->ei.len > et->largest.len) | |
454 | et->largest = en->ei; | |
455 | } | |
456 | ||
39a53e0c JK |
457 | struct f2fs_nm_info { |
458 | block_t nat_blkaddr; /* base disk address of NAT */ | |
459 | nid_t max_nid; /* maximum possible node ids */ | |
7ee0eeab | 460 | nid_t available_nids; /* maximum available node ids */ |
39a53e0c | 461 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 462 | unsigned int ram_thresh; /* control the memory footprint */ |
ea1a29a0 | 463 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
2304cb0c | 464 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
39a53e0c JK |
465 | |
466 | /* NAT cache management */ | |
467 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 468 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
8b26ef98 | 469 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 470 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 471 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 472 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
39a53e0c JK |
473 | |
474 | /* free node ids management */ | |
8a7ed66a | 475 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
39a53e0c JK |
476 | struct list_head free_nid_list; /* a list for free nids */ |
477 | spinlock_t free_nid_list_lock; /* protect free nid list */ | |
478 | unsigned int fcnt; /* the number of free node id */ | |
479 | struct mutex build_lock; /* lock for build free nids */ | |
480 | ||
481 | /* for checkpoint */ | |
482 | char *nat_bitmap; /* NAT bitmap pointer */ | |
483 | int bitmap_size; /* bitmap size */ | |
484 | }; | |
485 | ||
486 | /* | |
487 | * this structure is used as one of function parameters. | |
488 | * all the information are dedicated to a given direct node block determined | |
489 | * by the data offset in a file. | |
490 | */ | |
491 | struct dnode_of_data { | |
492 | struct inode *inode; /* vfs inode pointer */ | |
493 | struct page *inode_page; /* its inode page, NULL is possible */ | |
494 | struct page *node_page; /* cached direct node page */ | |
495 | nid_t nid; /* node id of the direct node block */ | |
496 | unsigned int ofs_in_node; /* data offset in the node page */ | |
497 | bool inode_page_locked; /* inode page is locked or not */ | |
93bae099 | 498 | bool node_changed; /* is node block changed */ |
3cf45747 CY |
499 | char cur_level; /* level of hole node page */ |
500 | char max_level; /* level of current page located */ | |
39a53e0c JK |
501 | block_t data_blkaddr; /* block address of the node block */ |
502 | }; | |
503 | ||
504 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
505 | struct page *ipage, struct page *npage, nid_t nid) | |
506 | { | |
d66d1f76 | 507 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
508 | dn->inode = inode; |
509 | dn->inode_page = ipage; | |
510 | dn->node_page = npage; | |
511 | dn->nid = nid; | |
39a53e0c JK |
512 | } |
513 | ||
514 | /* | |
515 | * For SIT manager | |
516 | * | |
517 | * By default, there are 6 active log areas across the whole main area. | |
518 | * When considering hot and cold data separation to reduce cleaning overhead, | |
519 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
520 | * respectively. | |
521 | * In the current design, you should not change the numbers intentionally. | |
522 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
523 | * logs individually according to the underlying devices. (default: 6) | |
524 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
525 | * data and 8 for node logs. | |
526 | */ | |
527 | #define NR_CURSEG_DATA_TYPE (3) | |
528 | #define NR_CURSEG_NODE_TYPE (3) | |
529 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
530 | ||
531 | enum { | |
532 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
533 | CURSEG_WARM_DATA, /* data blocks */ | |
534 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
535 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
536 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
537 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 JK |
538 | NO_CHECK_TYPE, |
539 | CURSEG_DIRECT_IO, /* to use for the direct IO path */ | |
39a53e0c JK |
540 | }; |
541 | ||
6b4afdd7 | 542 | struct flush_cmd { |
6b4afdd7 | 543 | struct completion wait; |
721bd4d5 | 544 | struct llist_node llnode; |
6b4afdd7 JK |
545 | int ret; |
546 | }; | |
547 | ||
a688b9d9 GZ |
548 | struct flush_cmd_control { |
549 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
550 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
721bd4d5 GZ |
551 | struct llist_head issue_list; /* list for command issue */ |
552 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
553 | }; |
554 | ||
39a53e0c JK |
555 | struct f2fs_sm_info { |
556 | struct sit_info *sit_info; /* whole segment information */ | |
557 | struct free_segmap_info *free_info; /* free segment information */ | |
558 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
559 | struct curseg_info *curseg_array; /* active segment information */ | |
560 | ||
39a53e0c JK |
561 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
562 | block_t main_blkaddr; /* start block address of main area */ | |
563 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
564 | ||
565 | unsigned int segment_count; /* total # of segments */ | |
566 | unsigned int main_segments; /* # of segments in main area */ | |
567 | unsigned int reserved_segments; /* # of reserved segments */ | |
568 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
569 | |
570 | /* a threshold to reclaim prefree segments */ | |
571 | unsigned int rec_prefree_segments; | |
7fd9e544 JK |
572 | |
573 | /* for small discard management */ | |
574 | struct list_head discard_list; /* 4KB discard list */ | |
575 | int nr_discards; /* # of discards in the list */ | |
576 | int max_discards; /* max. discards to be issued */ | |
216fbd64 | 577 | |
bba681cb JK |
578 | /* for batched trimming */ |
579 | unsigned int trim_sections; /* # of sections to trim */ | |
580 | ||
184a5cd2 CY |
581 | struct list_head sit_entry_set; /* sit entry set list */ |
582 | ||
216fbd64 JK |
583 | unsigned int ipu_policy; /* in-place-update policy */ |
584 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 585 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
6b4afdd7 JK |
586 | |
587 | /* for flush command control */ | |
a688b9d9 GZ |
588 | struct flush_cmd_control *cmd_control_info; |
589 | ||
39a53e0c JK |
590 | }; |
591 | ||
39a53e0c JK |
592 | /* |
593 | * For superblock | |
594 | */ | |
595 | /* | |
596 | * COUNT_TYPE for monitoring | |
597 | * | |
598 | * f2fs monitors the number of several block types such as on-writeback, | |
599 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
600 | */ | |
601 | enum count_type { | |
602 | F2FS_WRITEBACK, | |
603 | F2FS_DIRTY_DENTS, | |
c227f912 | 604 | F2FS_DIRTY_DATA, |
39a53e0c JK |
605 | F2FS_DIRTY_NODES, |
606 | F2FS_DIRTY_META, | |
8dcf2ff7 | 607 | F2FS_INMEM_PAGES, |
39a53e0c JK |
608 | NR_COUNT_TYPE, |
609 | }; | |
610 | ||
39a53e0c | 611 | /* |
e1c42045 | 612 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
613 | * The available types are: |
614 | * DATA User data pages. It operates as async mode. | |
615 | * NODE Node pages. It operates as async mode. | |
616 | * META FS metadata pages such as SIT, NAT, CP. | |
617 | * NR_PAGE_TYPE The number of page types. | |
618 | * META_FLUSH Make sure the previous pages are written | |
619 | * with waiting the bio's completion | |
620 | * ... Only can be used with META. | |
621 | */ | |
7d5e5109 | 622 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
623 | enum page_type { |
624 | DATA, | |
625 | NODE, | |
626 | META, | |
627 | NR_PAGE_TYPE, | |
628 | META_FLUSH, | |
8ce67cb0 JK |
629 | INMEM, /* the below types are used by tracepoints only. */ |
630 | INMEM_DROP, | |
28bc106b | 631 | INMEM_REVOKE, |
8ce67cb0 JK |
632 | IPU, |
633 | OPU, | |
39a53e0c JK |
634 | }; |
635 | ||
458e6197 | 636 | struct f2fs_io_info { |
05ca3632 | 637 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 GZ |
638 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
639 | int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */ | |
7a9d7548 | 640 | block_t new_blkaddr; /* new block address to be written */ |
28bc106b | 641 | block_t old_blkaddr; /* old block address before Cow */ |
05ca3632 | 642 | struct page *page; /* page to be written */ |
4375a336 | 643 | struct page *encrypted_page; /* encrypted page */ |
458e6197 JK |
644 | }; |
645 | ||
93dfe2ac | 646 | #define is_read_io(rw) (((rw) & 1) == READ) |
1ff7bd3b | 647 | struct f2fs_bio_info { |
458e6197 | 648 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
649 | struct bio *bio; /* bios to merge */ |
650 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 651 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 652 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
653 | }; |
654 | ||
c227f912 CY |
655 | enum inode_type { |
656 | DIR_INODE, /* for dirty dir inode */ | |
657 | FILE_INODE, /* for dirty regular/symlink inode */ | |
658 | NR_INODE_TYPE, | |
659 | }; | |
660 | ||
67298804 CY |
661 | /* for inner inode cache management */ |
662 | struct inode_management { | |
663 | struct radix_tree_root ino_root; /* ino entry array */ | |
664 | spinlock_t ino_lock; /* for ino entry lock */ | |
665 | struct list_head ino_list; /* inode list head */ | |
666 | unsigned long ino_num; /* number of entries */ | |
667 | }; | |
668 | ||
caf0047e CY |
669 | /* For s_flag in struct f2fs_sb_info */ |
670 | enum { | |
671 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
672 | SBI_IS_CLOSE, /* specify unmounting */ | |
673 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
674 | SBI_POR_DOING, /* recovery is doing or not */ | |
675 | }; | |
676 | ||
6beceb54 JK |
677 | enum { |
678 | CP_TIME, | |
d0239e1b | 679 | REQ_TIME, |
6beceb54 JK |
680 | MAX_TIME, |
681 | }; | |
682 | ||
39a53e0c JK |
683 | struct f2fs_sb_info { |
684 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 685 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c | 686 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
e8240f65 | 687 | int valid_super_block; /* valid super block no */ |
caf0047e | 688 | int s_flag; /* flags for sbi */ |
39a53e0c JK |
689 | |
690 | /* for node-related operations */ | |
691 | struct f2fs_nm_info *nm_info; /* node manager */ | |
692 | struct inode *node_inode; /* cache node blocks */ | |
693 | ||
694 | /* for segment-related operations */ | |
695 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
696 | |
697 | /* for bio operations */ | |
924b720b | 698 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 699 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
39a53e0c JK |
700 | |
701 | /* for checkpoint */ | |
702 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
703 | struct inode *meta_inode; /* cache meta blocks */ | |
39936837 | 704 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
e479556b | 705 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 706 | struct rw_semaphore node_write; /* locking node writes */ |
5463e7c1 | 707 | struct mutex writepages; /* mutex for writepages() */ |
fb51b5ef | 708 | wait_queue_head_t cp_wait; |
6beceb54 JK |
709 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
710 | long interval_time[MAX_TIME]; /* to store thresholds */ | |
39a53e0c | 711 | |
67298804 | 712 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
713 | |
714 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 715 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c | 716 | |
c227f912 CY |
717 | /* for inode management */ |
718 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ | |
719 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ | |
39a53e0c | 720 | |
13054c54 CY |
721 | /* for extent tree cache */ |
722 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
723 | struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ | |
724 | struct list_head extent_list; /* lru list for shrinker */ | |
725 | spinlock_t extent_lock; /* locking extent lru list */ | |
7441ccef | 726 | atomic_t total_ext_tree; /* extent tree count */ |
137d09f0 | 727 | struct list_head zombie_list; /* extent zombie tree list */ |
74fd8d99 | 728 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
13054c54 CY |
729 | atomic_t total_ext_node; /* extent info count */ |
730 | ||
e1c42045 | 731 | /* basic filesystem units */ |
39a53e0c JK |
732 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
733 | unsigned int log_blocksize; /* log2 block size */ | |
734 | unsigned int blocksize; /* block size */ | |
735 | unsigned int root_ino_num; /* root inode number*/ | |
736 | unsigned int node_ino_num; /* node inode number*/ | |
737 | unsigned int meta_ino_num; /* meta inode number*/ | |
738 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
739 | unsigned int blocks_per_seg; /* blocks per segment */ | |
740 | unsigned int segs_per_sec; /* segments per section */ | |
741 | unsigned int secs_per_zone; /* sections per zone */ | |
742 | unsigned int total_sections; /* total section count */ | |
743 | unsigned int total_node_count; /* total node block count */ | |
744 | unsigned int total_valid_node_count; /* valid node block count */ | |
745 | unsigned int total_valid_inode_count; /* valid inode count */ | |
e0afc4d6 | 746 | loff_t max_file_blocks; /* max block index of file */ |
39a53e0c | 747 | int active_logs; /* # of active logs */ |
ab9fa662 | 748 | int dir_level; /* directory level */ |
39a53e0c JK |
749 | |
750 | block_t user_block_count; /* # of user blocks */ | |
751 | block_t total_valid_block_count; /* # of valid blocks */ | |
752 | block_t alloc_valid_block_count; /* # of allocated blocks */ | |
a66cdd98 | 753 | block_t discard_blks; /* discard command candidats */ |
39a53e0c JK |
754 | block_t last_valid_block_count; /* for recovery */ |
755 | u32 s_next_generation; /* for NFS support */ | |
756 | atomic_t nr_pages[NR_COUNT_TYPE]; /* # of pages, see count_type */ | |
757 | ||
758 | struct f2fs_mount_info mount_opt; /* mount options */ | |
759 | ||
760 | /* for cleaning operations */ | |
761 | struct mutex gc_mutex; /* mutex for GC */ | |
762 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 763 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 764 | |
b1c57c1c JK |
765 | /* maximum # of trials to find a victim segment for SSR and GC */ |
766 | unsigned int max_victim_search; | |
767 | ||
39a53e0c JK |
768 | /* |
769 | * for stat information. | |
770 | * one is for the LFS mode, and the other is for the SSR mode. | |
771 | */ | |
35b09d82 | 772 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
773 | struct f2fs_stat_info *stat_info; /* FS status information */ |
774 | unsigned int segment_count[2]; /* # of allocated segments */ | |
775 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 776 | atomic_t inplace_count; /* # of inplace update */ |
5b7ee374 CY |
777 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
778 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
779 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
780 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
d5e8f6c9 | 781 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
03e14d52 CY |
782 | atomic_t inline_inode; /* # of inline_data inodes */ |
783 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
39a53e0c | 784 | int bg_gc; /* background gc calls */ |
33fbd510 | 785 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
35b09d82 NJ |
786 | #endif |
787 | unsigned int last_victim[2]; /* last victim segment # */ | |
39a53e0c | 788 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
789 | |
790 | /* For sysfs suppport */ | |
791 | struct kobject s_kobj; | |
792 | struct completion s_kobj_unregister; | |
2658e50d JK |
793 | |
794 | /* For shrinker support */ | |
795 | struct list_head s_list; | |
796 | struct mutex umount_mutex; | |
797 | unsigned int shrinker_run_no; | |
8f1dbbbb SL |
798 | |
799 | /* For write statistics */ | |
800 | u64 sectors_written_start; | |
801 | u64 kbytes_written; | |
43b6573b KM |
802 | |
803 | /* Reference to checksum algorithm driver via cryptoapi */ | |
804 | struct crypto_shash *s_chksum_driver; | |
39a53e0c JK |
805 | }; |
806 | ||
8f1dbbbb SL |
807 | /* For write statistics. Suppose sector size is 512 bytes, |
808 | * and the return value is in kbytes. s is of struct f2fs_sb_info. | |
809 | */ | |
810 | #define BD_PART_WRITTEN(s) \ | |
811 | (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \ | |
812 | s->sectors_written_start) >> 1) | |
813 | ||
6beceb54 JK |
814 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
815 | { | |
816 | sbi->last_time[type] = jiffies; | |
817 | } | |
818 | ||
819 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) | |
820 | { | |
821 | struct timespec ts = {sbi->interval_time[type], 0}; | |
822 | unsigned long interval = timespec_to_jiffies(&ts); | |
823 | ||
824 | return time_after(jiffies, sbi->last_time[type] + interval); | |
825 | } | |
826 | ||
d0239e1b JK |
827 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
828 | { | |
829 | struct block_device *bdev = sbi->sb->s_bdev; | |
830 | struct request_queue *q = bdev_get_queue(bdev); | |
831 | struct request_list *rl = &q->root_rl; | |
832 | ||
833 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) | |
834 | return 0; | |
835 | ||
836 | return f2fs_time_over(sbi, REQ_TIME); | |
837 | } | |
838 | ||
39a53e0c JK |
839 | /* |
840 | * Inline functions | |
841 | */ | |
43b6573b KM |
842 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
843 | unsigned int length) | |
844 | { | |
845 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); | |
846 | u32 *ctx = (u32 *)shash_desc_ctx(shash); | |
847 | int err; | |
848 | ||
849 | shash->tfm = sbi->s_chksum_driver; | |
850 | shash->flags = 0; | |
851 | *ctx = F2FS_SUPER_MAGIC; | |
852 | ||
853 | err = crypto_shash_update(shash, address, length); | |
854 | BUG_ON(err); | |
855 | ||
856 | return *ctx; | |
857 | } | |
858 | ||
859 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, | |
860 | void *buf, size_t buf_size) | |
861 | { | |
862 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; | |
863 | } | |
864 | ||
39a53e0c JK |
865 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
866 | { | |
867 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
868 | } | |
869 | ||
870 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
871 | { | |
872 | return sb->s_fs_info; | |
873 | } | |
874 | ||
4081363f JK |
875 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
876 | { | |
877 | return F2FS_SB(inode->i_sb); | |
878 | } | |
879 | ||
880 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
881 | { | |
882 | return F2FS_I_SB(mapping->host); | |
883 | } | |
884 | ||
885 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
886 | { | |
887 | return F2FS_M_SB(page->mapping); | |
888 | } | |
889 | ||
39a53e0c JK |
890 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
891 | { | |
892 | return (struct f2fs_super_block *)(sbi->raw_super); | |
893 | } | |
894 | ||
895 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
896 | { | |
897 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
898 | } | |
899 | ||
45590710 GZ |
900 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
901 | { | |
902 | return (struct f2fs_node *)page_address(page); | |
903 | } | |
904 | ||
58bfaf44 JK |
905 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
906 | { | |
907 | return &((struct f2fs_node *)page_address(page))->i; | |
908 | } | |
909 | ||
39a53e0c JK |
910 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
911 | { | |
912 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
913 | } | |
914 | ||
915 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
916 | { | |
917 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
918 | } | |
919 | ||
920 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
921 | { | |
922 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
923 | } | |
924 | ||
925 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
926 | { | |
927 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
928 | } | |
929 | ||
930 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
931 | { | |
932 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
933 | } | |
934 | ||
9df27d98 GZ |
935 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
936 | { | |
937 | return sbi->meta_inode->i_mapping; | |
938 | } | |
939 | ||
4ef51a8f JK |
940 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
941 | { | |
942 | return sbi->node_inode->i_mapping; | |
943 | } | |
944 | ||
caf0047e CY |
945 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
946 | { | |
947 | return sbi->s_flag & (0x01 << type); | |
948 | } | |
949 | ||
950 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 951 | { |
caf0047e | 952 | sbi->s_flag |= (0x01 << type); |
39a53e0c JK |
953 | } |
954 | ||
caf0047e | 955 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 956 | { |
caf0047e | 957 | sbi->s_flag &= ~(0x01 << type); |
39a53e0c JK |
958 | } |
959 | ||
d71b5564 JK |
960 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
961 | { | |
962 | return le64_to_cpu(cp->checkpoint_ver); | |
963 | } | |
964 | ||
25ca923b JK |
965 | static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
966 | { | |
967 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
968 | return ckpt_flags & f; | |
969 | } | |
970 | ||
971 | static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
972 | { | |
973 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
974 | ckpt_flags |= f; | |
975 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
976 | } | |
977 | ||
978 | static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
979 | { | |
980 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
981 | ckpt_flags &= (~f); | |
982 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
983 | } | |
984 | ||
e479556b | 985 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 986 | { |
e479556b | 987 | down_read(&sbi->cp_rwsem); |
39936837 JK |
988 | } |
989 | ||
e479556b | 990 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 991 | { |
e479556b | 992 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
993 | } |
994 | ||
e479556b | 995 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 996 | { |
59692b7c | 997 | down_write(&sbi->cp_rwsem); |
39936837 JK |
998 | } |
999 | ||
e479556b | 1000 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 1001 | { |
e479556b | 1002 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
1003 | } |
1004 | ||
119ee914 JK |
1005 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
1006 | { | |
1007 | int reason = CP_SYNC; | |
1008 | ||
1009 | if (test_opt(sbi, FASTBOOT)) | |
1010 | reason = CP_FASTBOOT; | |
1011 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
1012 | reason = CP_UMOUNT; | |
1013 | return reason; | |
1014 | } | |
1015 | ||
1016 | static inline bool __remain_node_summaries(int reason) | |
1017 | { | |
1018 | return (reason == CP_UMOUNT || reason == CP_FASTBOOT); | |
1019 | } | |
1020 | ||
1021 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
1022 | { | |
1023 | return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || | |
1024 | is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); | |
1025 | } | |
1026 | ||
39a53e0c JK |
1027 | /* |
1028 | * Check whether the given nid is within node id range. | |
1029 | */ | |
064e0823 | 1030 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 1031 | { |
d6b7d4b3 CY |
1032 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
1033 | return -EINVAL; | |
cfb271d4 | 1034 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
1035 | return -EINVAL; |
1036 | return 0; | |
39a53e0c JK |
1037 | } |
1038 | ||
1039 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
1040 | ||
1041 | /* | |
1042 | * Check whether the inode has blocks or not | |
1043 | */ | |
1044 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1045 | { | |
1046 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 1047 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 1048 | else |
6c311ec6 | 1049 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
1050 | } |
1051 | ||
4bc8e9bc CY |
1052 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
1053 | { | |
1054 | return ofs == XATTR_NODE_OFFSET; | |
1055 | } | |
1056 | ||
39a53e0c JK |
1057 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
1058 | struct inode *inode, blkcnt_t count) | |
1059 | { | |
1060 | block_t valid_block_count; | |
1061 | ||
1062 | spin_lock(&sbi->stat_lock); | |
1063 | valid_block_count = | |
1064 | sbi->total_valid_block_count + (block_t)count; | |
cfb271d4 | 1065 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1066 | spin_unlock(&sbi->stat_lock); |
1067 | return false; | |
1068 | } | |
1069 | inode->i_blocks += count; | |
1070 | sbi->total_valid_block_count = valid_block_count; | |
1071 | sbi->alloc_valid_block_count += (block_t)count; | |
1072 | spin_unlock(&sbi->stat_lock); | |
1073 | return true; | |
1074 | } | |
1075 | ||
da19b0dc | 1076 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
1077 | struct inode *inode, |
1078 | blkcnt_t count) | |
1079 | { | |
1080 | spin_lock(&sbi->stat_lock); | |
9850cf4a JK |
1081 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
1082 | f2fs_bug_on(sbi, inode->i_blocks < count); | |
39a53e0c JK |
1083 | inode->i_blocks -= count; |
1084 | sbi->total_valid_block_count -= (block_t)count; | |
1085 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1086 | } |
1087 | ||
1088 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1089 | { | |
1090 | atomic_inc(&sbi->nr_pages[count_type]); | |
caf0047e | 1091 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
1092 | } |
1093 | ||
a7ffdbe2 | 1094 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 1095 | { |
a7ffdbe2 | 1096 | atomic_inc(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1097 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1098 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1099 | } |
1100 | ||
1101 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1102 | { | |
1103 | atomic_dec(&sbi->nr_pages[count_type]); | |
1104 | } | |
1105 | ||
a7ffdbe2 | 1106 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 1107 | { |
5ac9f36f CY |
1108 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1109 | !S_ISLNK(inode->i_mode)) | |
1fe54f9d JK |
1110 | return; |
1111 | ||
a7ffdbe2 | 1112 | atomic_dec(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1113 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1114 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1115 | } |
1116 | ||
1117 | static inline int get_pages(struct f2fs_sb_info *sbi, int count_type) | |
1118 | { | |
1119 | return atomic_read(&sbi->nr_pages[count_type]); | |
1120 | } | |
1121 | ||
a7ffdbe2 | 1122 | static inline int get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1123 | { |
a7ffdbe2 | 1124 | return atomic_read(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1125 | } |
1126 | ||
5ac206cf NJ |
1127 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1128 | { | |
3519e3f9 | 1129 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
5ac206cf NJ |
1130 | return ((get_pages(sbi, block_type) + pages_per_sec - 1) |
1131 | >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; | |
1132 | } | |
1133 | ||
39a53e0c JK |
1134 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1135 | { | |
8b8343fa | 1136 | return sbi->total_valid_block_count; |
39a53e0c JK |
1137 | } |
1138 | ||
1139 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) | |
1140 | { | |
1141 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1142 | ||
1143 | /* return NAT or SIT bitmap */ | |
1144 | if (flag == NAT_BITMAP) | |
1145 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1146 | else if (flag == SIT_BITMAP) | |
1147 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1148 | ||
1149 | return 0; | |
1150 | } | |
1151 | ||
55141486 WL |
1152 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1153 | { | |
1154 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1155 | } | |
1156 | ||
39a53e0c JK |
1157 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1158 | { | |
1159 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1160 | int offset; |
1161 | ||
55141486 | 1162 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1163 | if (flag == NAT_BITMAP) |
1164 | return &ckpt->sit_nat_version_bitmap; | |
1165 | else | |
65b85ccc | 1166 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1167 | } else { |
1168 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1169 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1170 | return &ckpt->sit_nat_version_bitmap + offset; |
1171 | } | |
39a53e0c JK |
1172 | } |
1173 | ||
1174 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1175 | { | |
1176 | block_t start_addr; | |
1177 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d71b5564 | 1178 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
39a53e0c | 1179 | |
25ca923b | 1180 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c JK |
1181 | |
1182 | /* | |
1183 | * odd numbered checkpoint should at cp segment 0 | |
e1c42045 | 1184 | * and even segment must be at cp segment 1 |
39a53e0c JK |
1185 | */ |
1186 | if (!(ckpt_version & 1)) | |
1187 | start_addr += sbi->blocks_per_seg; | |
1188 | ||
1189 | return start_addr; | |
1190 | } | |
1191 | ||
1192 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
1193 | { | |
1194 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1195 | } | |
1196 | ||
1197 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1198 | struct inode *inode) |
39a53e0c JK |
1199 | { |
1200 | block_t valid_block_count; | |
1201 | unsigned int valid_node_count; | |
1202 | ||
1203 | spin_lock(&sbi->stat_lock); | |
1204 | ||
ef86d709 | 1205 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 1206 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1207 | spin_unlock(&sbi->stat_lock); |
1208 | return false; | |
1209 | } | |
1210 | ||
ef86d709 | 1211 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1212 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1213 | spin_unlock(&sbi->stat_lock); |
1214 | return false; | |
1215 | } | |
1216 | ||
1217 | if (inode) | |
ef86d709 GZ |
1218 | inode->i_blocks++; |
1219 | ||
1220 | sbi->alloc_valid_block_count++; | |
1221 | sbi->total_valid_node_count++; | |
1222 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1223 | spin_unlock(&sbi->stat_lock); |
1224 | ||
1225 | return true; | |
1226 | } | |
1227 | ||
1228 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1229 | struct inode *inode) |
39a53e0c JK |
1230 | { |
1231 | spin_lock(&sbi->stat_lock); | |
1232 | ||
9850cf4a JK |
1233 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1234 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1235 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1236 | |
ef86d709 GZ |
1237 | inode->i_blocks--; |
1238 | sbi->total_valid_node_count--; | |
1239 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1240 | |
1241 | spin_unlock(&sbi->stat_lock); | |
1242 | } | |
1243 | ||
1244 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1245 | { | |
8b8343fa | 1246 | return sbi->total_valid_node_count; |
39a53e0c JK |
1247 | } |
1248 | ||
1249 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1250 | { | |
1251 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1252 | f2fs_bug_on(sbi, sbi->total_valid_inode_count == sbi->total_node_count); |
39a53e0c JK |
1253 | sbi->total_valid_inode_count++; |
1254 | spin_unlock(&sbi->stat_lock); | |
1255 | } | |
1256 | ||
0e80220a | 1257 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c JK |
1258 | { |
1259 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1260 | f2fs_bug_on(sbi, !sbi->total_valid_inode_count); |
39a53e0c JK |
1261 | sbi->total_valid_inode_count--; |
1262 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1263 | } |
1264 | ||
1265 | static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) | |
1266 | { | |
8b8343fa | 1267 | return sbi->total_valid_inode_count; |
39a53e0c JK |
1268 | } |
1269 | ||
a56c7c6f JK |
1270 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
1271 | pgoff_t index, bool for_write) | |
1272 | { | |
1273 | if (!for_write) | |
1274 | return grab_cache_page(mapping, index); | |
1275 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); | |
1276 | } | |
1277 | ||
6e2c64ad JK |
1278 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
1279 | { | |
1280 | char *src_kaddr = kmap(src); | |
1281 | char *dst_kaddr = kmap(dst); | |
1282 | ||
1283 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); | |
1284 | kunmap(dst); | |
1285 | kunmap(src); | |
1286 | } | |
1287 | ||
39a53e0c JK |
1288 | static inline void f2fs_put_page(struct page *page, int unlock) |
1289 | { | |
031fa8cc | 1290 | if (!page) |
39a53e0c JK |
1291 | return; |
1292 | ||
1293 | if (unlock) { | |
9850cf4a | 1294 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1295 | unlock_page(page); |
1296 | } | |
09cbfeaf | 1297 | put_page(page); |
39a53e0c JK |
1298 | } |
1299 | ||
1300 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1301 | { | |
1302 | if (dn->node_page) | |
1303 | f2fs_put_page(dn->node_page, 1); | |
1304 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1305 | f2fs_put_page(dn->inode_page, 0); | |
1306 | dn->node_page = NULL; | |
1307 | dn->inode_page = NULL; | |
1308 | } | |
1309 | ||
1310 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1311 | size_t size) |
39a53e0c | 1312 | { |
e8512d2e | 1313 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1314 | } |
1315 | ||
7bd59381 GZ |
1316 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1317 | gfp_t flags) | |
1318 | { | |
1319 | void *entry; | |
7bd59381 | 1320 | |
80c54505 JK |
1321 | entry = kmem_cache_alloc(cachep, flags); |
1322 | if (!entry) | |
1323 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
7bd59381 GZ |
1324 | return entry; |
1325 | } | |
1326 | ||
740432f8 JK |
1327 | static inline struct bio *f2fs_bio_alloc(int npages) |
1328 | { | |
1329 | struct bio *bio; | |
1330 | ||
1331 | /* No failure on bio allocation */ | |
740432f8 | 1332 | bio = bio_alloc(GFP_NOIO, npages); |
80c54505 JK |
1333 | if (!bio) |
1334 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); | |
740432f8 JK |
1335 | return bio; |
1336 | } | |
1337 | ||
9be32d72 JK |
1338 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1339 | unsigned long index, void *item) | |
1340 | { | |
1341 | while (radix_tree_insert(root, index, item)) | |
1342 | cond_resched(); | |
1343 | } | |
1344 | ||
39a53e0c JK |
1345 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1346 | ||
1347 | static inline bool IS_INODE(struct page *page) | |
1348 | { | |
45590710 | 1349 | struct f2fs_node *p = F2FS_NODE(page); |
39a53e0c JK |
1350 | return RAW_IS_INODE(p); |
1351 | } | |
1352 | ||
1353 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1354 | { | |
1355 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1356 | } | |
1357 | ||
1358 | static inline block_t datablock_addr(struct page *node_page, | |
1359 | unsigned int offset) | |
1360 | { | |
1361 | struct f2fs_node *raw_node; | |
1362 | __le32 *addr_array; | |
45590710 | 1363 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1364 | addr_array = blkaddr_in_node(raw_node); |
1365 | return le32_to_cpu(addr_array[offset]); | |
1366 | } | |
1367 | ||
1368 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1369 | { | |
1370 | int mask; | |
1371 | ||
1372 | addr += (nr >> 3); | |
1373 | mask = 1 << (7 - (nr & 0x07)); | |
1374 | return mask & *addr; | |
1375 | } | |
1376 | ||
a66cdd98 JK |
1377 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1378 | { | |
1379 | int mask; | |
1380 | ||
1381 | addr += (nr >> 3); | |
1382 | mask = 1 << (7 - (nr & 0x07)); | |
1383 | *addr |= mask; | |
1384 | } | |
1385 | ||
1386 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
1387 | { | |
1388 | int mask; | |
1389 | ||
1390 | addr += (nr >> 3); | |
1391 | mask = 1 << (7 - (nr & 0x07)); | |
1392 | *addr &= ~mask; | |
1393 | } | |
1394 | ||
52aca074 | 1395 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1396 | { |
1397 | int mask; | |
1398 | int ret; | |
1399 | ||
1400 | addr += (nr >> 3); | |
1401 | mask = 1 << (7 - (nr & 0x07)); | |
1402 | ret = mask & *addr; | |
1403 | *addr |= mask; | |
1404 | return ret; | |
1405 | } | |
1406 | ||
52aca074 | 1407 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1408 | { |
1409 | int mask; | |
1410 | int ret; | |
1411 | ||
1412 | addr += (nr >> 3); | |
1413 | mask = 1 << (7 - (nr & 0x07)); | |
1414 | ret = mask & *addr; | |
1415 | *addr &= ~mask; | |
1416 | return ret; | |
1417 | } | |
1418 | ||
c6ac4c0e GZ |
1419 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1420 | { | |
1421 | int mask; | |
1422 | ||
1423 | addr += (nr >> 3); | |
1424 | mask = 1 << (7 - (nr & 0x07)); | |
1425 | *addr ^= mask; | |
1426 | } | |
1427 | ||
39a53e0c JK |
1428 | /* used for f2fs_inode_info->flags */ |
1429 | enum { | |
1430 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1431 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
ed57c27f | 1432 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1433 | FI_INC_LINK, /* need to increment i_nlink */ |
1434 | FI_ACL_MODE, /* indicate acl mode */ | |
1435 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
c9b63bd0 | 1436 | FI_FREE_NID, /* free allocated nide */ |
699489bb | 1437 | FI_UPDATE_DIR, /* should update inode block for consistency */ |
74d0b917 | 1438 | FI_DELAY_IPUT, /* used for the recovery */ |
c11abd1a | 1439 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1440 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1441 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1442 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1443 | FI_APPEND_WRITE, /* inode has appended data */ |
1444 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1445 | FI_NEED_IPU, /* used for ipu per file */ |
1446 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
02a1335f | 1447 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1448 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1449 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1450 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1451 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
d323d005 | 1452 | FI_DO_DEFRAG, /* indicate defragment is running */ |
c227f912 | 1453 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
39a53e0c JK |
1454 | }; |
1455 | ||
1456 | static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1457 | { | |
61e0f2d0 JK |
1458 | if (!test_bit(flag, &fi->flags)) |
1459 | set_bit(flag, &fi->flags); | |
39a53e0c JK |
1460 | } |
1461 | ||
1462 | static inline int is_inode_flag_set(struct f2fs_inode_info *fi, int flag) | |
1463 | { | |
1464 | return test_bit(flag, &fi->flags); | |
1465 | } | |
1466 | ||
1467 | static inline void clear_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1468 | { | |
61e0f2d0 JK |
1469 | if (test_bit(flag, &fi->flags)) |
1470 | clear_bit(flag, &fi->flags); | |
39a53e0c JK |
1471 | } |
1472 | ||
1473 | static inline void set_acl_inode(struct f2fs_inode_info *fi, umode_t mode) | |
1474 | { | |
1475 | fi->i_acl_mode = mode; | |
1476 | set_inode_flag(fi, FI_ACL_MODE); | |
1477 | } | |
1478 | ||
444c580f JK |
1479 | static inline void get_inline_info(struct f2fs_inode_info *fi, |
1480 | struct f2fs_inode *ri) | |
1481 | { | |
1482 | if (ri->i_inline & F2FS_INLINE_XATTR) | |
1483 | set_inode_flag(fi, FI_INLINE_XATTR); | |
1001b347 HL |
1484 | if (ri->i_inline & F2FS_INLINE_DATA) |
1485 | set_inode_flag(fi, FI_INLINE_DATA); | |
34d67deb CY |
1486 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
1487 | set_inode_flag(fi, FI_INLINE_DENTRY); | |
b3d208f9 JK |
1488 | if (ri->i_inline & F2FS_DATA_EXIST) |
1489 | set_inode_flag(fi, FI_DATA_EXIST); | |
510022a8 JK |
1490 | if (ri->i_inline & F2FS_INLINE_DOTS) |
1491 | set_inode_flag(fi, FI_INLINE_DOTS); | |
444c580f JK |
1492 | } |
1493 | ||
1494 | static inline void set_raw_inline(struct f2fs_inode_info *fi, | |
1495 | struct f2fs_inode *ri) | |
1496 | { | |
1497 | ri->i_inline = 0; | |
1498 | ||
1499 | if (is_inode_flag_set(fi, FI_INLINE_XATTR)) | |
1500 | ri->i_inline |= F2FS_INLINE_XATTR; | |
1001b347 HL |
1501 | if (is_inode_flag_set(fi, FI_INLINE_DATA)) |
1502 | ri->i_inline |= F2FS_INLINE_DATA; | |
34d67deb CY |
1503 | if (is_inode_flag_set(fi, FI_INLINE_DENTRY)) |
1504 | ri->i_inline |= F2FS_INLINE_DENTRY; | |
b3d208f9 JK |
1505 | if (is_inode_flag_set(fi, FI_DATA_EXIST)) |
1506 | ri->i_inline |= F2FS_DATA_EXIST; | |
510022a8 JK |
1507 | if (is_inode_flag_set(fi, FI_INLINE_DOTS)) |
1508 | ri->i_inline |= F2FS_INLINE_DOTS; | |
444c580f JK |
1509 | } |
1510 | ||
987c7c31 CY |
1511 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1512 | { | |
1513 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR); | |
1514 | } | |
1515 | ||
81ca7350 | 1516 | static inline unsigned int addrs_per_inode(struct inode *inode) |
de93653f | 1517 | { |
81ca7350 | 1518 | if (f2fs_has_inline_xattr(inode)) |
de93653f JK |
1519 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1520 | return DEF_ADDRS_PER_INODE; | |
1521 | } | |
1522 | ||
65985d93 JK |
1523 | static inline void *inline_xattr_addr(struct page *page) |
1524 | { | |
695fd1ed | 1525 | struct f2fs_inode *ri = F2FS_INODE(page); |
65985d93 JK |
1526 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1527 | F2FS_INLINE_XATTR_ADDRS]); | |
1528 | } | |
1529 | ||
1530 | static inline int inline_xattr_size(struct inode *inode) | |
1531 | { | |
987c7c31 | 1532 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1533 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1534 | else | |
1535 | return 0; | |
1536 | } | |
1537 | ||
0dbdc2ae JK |
1538 | static inline int f2fs_has_inline_data(struct inode *inode) |
1539 | { | |
1540 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DATA); | |
1541 | } | |
1542 | ||
b3d208f9 JK |
1543 | static inline void f2fs_clear_inline_inode(struct inode *inode) |
1544 | { | |
1545 | clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA); | |
1546 | clear_inode_flag(F2FS_I(inode), FI_DATA_EXIST); | |
1547 | } | |
1548 | ||
1549 | static inline int f2fs_exist_data(struct inode *inode) | |
1550 | { | |
1551 | return is_inode_flag_set(F2FS_I(inode), FI_DATA_EXIST); | |
1552 | } | |
1553 | ||
510022a8 JK |
1554 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1555 | { | |
1556 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DOTS); | |
1557 | } | |
1558 | ||
88b88a66 JK |
1559 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1560 | { | |
1561 | return is_inode_flag_set(F2FS_I(inode), FI_ATOMIC_FILE); | |
1562 | } | |
1563 | ||
02a1335f JK |
1564 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
1565 | { | |
1566 | return is_inode_flag_set(F2FS_I(inode), FI_VOLATILE_FILE); | |
1567 | } | |
1568 | ||
3c6c2beb JK |
1569 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
1570 | { | |
1571 | return is_inode_flag_set(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN); | |
1572 | } | |
1573 | ||
1e84371f JK |
1574 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
1575 | { | |
1576 | return is_inode_flag_set(F2FS_I(inode), FI_DROP_CACHE); | |
1577 | } | |
1578 | ||
1001b347 HL |
1579 | static inline void *inline_data_addr(struct page *page) |
1580 | { | |
695fd1ed | 1581 | struct f2fs_inode *ri = F2FS_INODE(page); |
1001b347 HL |
1582 | return (void *)&(ri->i_addr[1]); |
1583 | } | |
1584 | ||
34d67deb CY |
1585 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
1586 | { | |
1587 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DENTRY); | |
1588 | } | |
1589 | ||
9486ba44 JK |
1590 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
1591 | { | |
1592 | if (!f2fs_has_inline_dentry(dir)) | |
1593 | kunmap(page); | |
1594 | } | |
1595 | ||
b5492af7 JK |
1596 | static inline int is_file(struct inode *inode, int type) |
1597 | { | |
1598 | return F2FS_I(inode)->i_advise & type; | |
1599 | } | |
1600 | ||
1601 | static inline void set_file(struct inode *inode, int type) | |
1602 | { | |
1603 | F2FS_I(inode)->i_advise |= type; | |
1604 | } | |
1605 | ||
1606 | static inline void clear_file(struct inode *inode, int type) | |
1607 | { | |
1608 | F2FS_I(inode)->i_advise &= ~type; | |
1609 | } | |
1610 | ||
77888c1e JK |
1611 | static inline int f2fs_readonly(struct super_block *sb) |
1612 | { | |
1613 | return sb->s_flags & MS_RDONLY; | |
1614 | } | |
1615 | ||
1e968fdf JK |
1616 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
1617 | { | |
1618 | return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1619 | } | |
1620 | ||
744602cf JK |
1621 | static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi) |
1622 | { | |
1623 | set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1624 | sbi->sb->s_flags |= MS_RDONLY; | |
1625 | } | |
1626 | ||
eaa693f4 JK |
1627 | static inline bool is_dot_dotdot(const struct qstr *str) |
1628 | { | |
1629 | if (str->len == 1 && str->name[0] == '.') | |
1630 | return true; | |
1631 | ||
1632 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
1633 | return true; | |
1634 | ||
1635 | return false; | |
1636 | } | |
1637 | ||
3e72f721 JK |
1638 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
1639 | { | |
3e72f721 JK |
1640 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
1641 | is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) | |
1642 | return false; | |
1643 | ||
886f56f9 | 1644 | return S_ISREG(inode->i_mode); |
3e72f721 JK |
1645 | } |
1646 | ||
39307a8e JK |
1647 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
1648 | { | |
1649 | void *ret; | |
1650 | ||
1651 | ret = kmalloc(size, flags | __GFP_NOWARN); | |
1652 | if (!ret) | |
1653 | ret = __vmalloc(size, flags, PAGE_KERNEL); | |
1654 | return ret; | |
1655 | } | |
1656 | ||
1657 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) | |
1658 | { | |
1659 | void *ret; | |
1660 | ||
1661 | ret = kzalloc(size, flags | __GFP_NOWARN); | |
1662 | if (!ret) | |
1663 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); | |
1664 | return ret; | |
1665 | } | |
1666 | ||
a6dda0e6 CH |
1667 | #define get_inode_mode(i) \ |
1668 | ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ | |
1669 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) | |
1670 | ||
267378d4 | 1671 | /* get offset of first page in next direct node */ |
81ca7350 CY |
1672 | #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \ |
1673 | ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \ | |
1674 | (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \ | |
1675 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode)) | |
267378d4 | 1676 | |
39a53e0c JK |
1677 | /* |
1678 | * file.c | |
1679 | */ | |
1680 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); | |
1681 | void truncate_data_blocks(struct dnode_of_data *); | |
764aa3e9 | 1682 | int truncate_blocks(struct inode *, u64, bool); |
b0154891 | 1683 | int f2fs_truncate(struct inode *, bool); |
2d4d9fb5 | 1684 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
39a53e0c JK |
1685 | int f2fs_setattr(struct dentry *, struct iattr *); |
1686 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); | |
b292dcab | 1687 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
39a53e0c | 1688 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
e9750824 | 1689 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
39a53e0c JK |
1690 | |
1691 | /* | |
1692 | * inode.c | |
1693 | */ | |
1694 | void f2fs_set_inode_flags(struct inode *); | |
39a53e0c | 1695 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
4660f9c0 | 1696 | int try_to_free_nats(struct f2fs_sb_info *, int); |
12719ae1 JK |
1697 | int update_inode(struct inode *, struct page *); |
1698 | int update_inode_page(struct inode *); | |
39a53e0c JK |
1699 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
1700 | void f2fs_evict_inode(struct inode *); | |
44c16156 | 1701 | void handle_failed_inode(struct inode *); |
39a53e0c JK |
1702 | |
1703 | /* | |
1704 | * namei.c | |
1705 | */ | |
1706 | struct dentry *f2fs_get_parent(struct dentry *child); | |
1707 | ||
1708 | /* | |
1709 | * dir.c | |
1710 | */ | |
dbeacf02 | 1711 | extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; |
510022a8 | 1712 | void set_de_type(struct f2fs_dir_entry *, umode_t); |
6e22c691 | 1713 | |
0b81d077 | 1714 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *, |
6e22c691 | 1715 | f2fs_hash_t, int *, struct f2fs_dentry_ptr *); |
7b3cd7d6 | 1716 | bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, |
0b81d077 | 1717 | unsigned int, struct fscrypt_str *); |
062a3e7b JK |
1718 | void do_make_empty_dir(struct inode *, struct inode *, |
1719 | struct f2fs_dentry_ptr *); | |
dbeacf02 | 1720 | struct page *init_inode_metadata(struct inode *, struct inode *, |
bce8d112 | 1721 | const struct qstr *, struct page *); |
dbeacf02 | 1722 | void update_parent_metadata(struct inode *, struct inode *, unsigned int); |
a82afa20 | 1723 | int room_for_filename(const void *, int, int); |
dbeacf02 | 1724 | void f2fs_drop_nlink(struct inode *, struct inode *, struct page *); |
39a53e0c JK |
1725 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *, |
1726 | struct page **); | |
1727 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); | |
1728 | ino_t f2fs_inode_by_name(struct inode *, struct qstr *); | |
1729 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, | |
1730 | struct page *, struct inode *); | |
e7d55452 | 1731 | int update_dent_inode(struct inode *, struct inode *, const struct qstr *); |
510022a8 | 1732 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, |
3b4d732a | 1733 | const struct qstr *, f2fs_hash_t , unsigned int); |
510022a8 JK |
1734 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, |
1735 | umode_t); | |
dbeacf02 CY |
1736 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, |
1737 | struct inode *); | |
b97a9b5d | 1738 | int f2fs_do_tmpfile(struct inode *, struct inode *); |
39a53e0c JK |
1739 | bool f2fs_empty_dir(struct inode *); |
1740 | ||
b7f7a5e0 AV |
1741 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
1742 | { | |
2b0143b5 | 1743 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 1744 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
1745 | } |
1746 | ||
39a53e0c JK |
1747 | /* |
1748 | * super.c | |
1749 | */ | |
c5bda1c8 | 1750 | int f2fs_commit_super(struct f2fs_sb_info *, bool); |
39a53e0c | 1751 | int f2fs_sync_fs(struct super_block *, int); |
a07ef784 NJ |
1752 | extern __printf(3, 4) |
1753 | void f2fs_msg(struct super_block *, const char *, const char *, ...); | |
984ec63c | 1754 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
39a53e0c JK |
1755 | |
1756 | /* | |
1757 | * hash.c | |
1758 | */ | |
eee6160f | 1759 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *); |
39a53e0c JK |
1760 | |
1761 | /* | |
1762 | * node.c | |
1763 | */ | |
1764 | struct dnode_of_data; | |
1765 | struct node_info; | |
1766 | ||
6fb03f3a | 1767 | bool available_free_memory(struct f2fs_sb_info *, int); |
2dcf51ab | 1768 | int need_dentry_mark(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1769 | bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1770 | bool need_inode_block_update(struct f2fs_sb_info *, nid_t); |
39a53e0c | 1771 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
3cf45747 | 1772 | pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t); |
39a53e0c JK |
1773 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); |
1774 | int truncate_inode_blocks(struct inode *, pgoff_t); | |
4f16fb0f | 1775 | int truncate_xattr_node(struct inode *, struct page *); |
cfe58f9d | 1776 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
13ec7297 | 1777 | int remove_inode_page(struct inode *); |
a014e037 | 1778 | struct page *new_inode_page(struct inode *); |
8ae8f162 | 1779 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
39a53e0c JK |
1780 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
1781 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); | |
1782 | struct page *get_node_page_ra(struct page *, int); | |
1783 | void sync_inode_page(struct dnode_of_data *); | |
1784 | int sync_node_pages(struct f2fs_sb_info *, nid_t, struct writeback_control *); | |
1785 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); | |
1786 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); | |
1787 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); | |
31696580 | 1788 | int try_to_free_nids(struct f2fs_sb_info *, int); |
70cfed88 | 1789 | void recover_inline_xattr(struct inode *, struct page *); |
1c35a90e | 1790 | void recover_xattr_data(struct inode *, struct page *, block_t); |
39a53e0c JK |
1791 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
1792 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, | |
1793 | struct f2fs_summary_block *); | |
1794 | void flush_nat_entries(struct f2fs_sb_info *); | |
1795 | int build_node_manager(struct f2fs_sb_info *); | |
1796 | void destroy_node_manager(struct f2fs_sb_info *); | |
6e6093a8 | 1797 | int __init create_node_manager_caches(void); |
39a53e0c JK |
1798 | void destroy_node_manager_caches(void); |
1799 | ||
1800 | /* | |
1801 | * segment.c | |
1802 | */ | |
88b88a66 | 1803 | void register_inmem_page(struct inode *, struct page *); |
29b96b54 CY |
1804 | void drop_inmem_pages(struct inode *); |
1805 | int commit_inmem_pages(struct inode *); | |
2c4db1a6 | 1806 | void f2fs_balance_fs(struct f2fs_sb_info *, bool); |
4660f9c0 | 1807 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
6b4afdd7 | 1808 | int f2fs_issue_flush(struct f2fs_sb_info *); |
2163d198 GZ |
1809 | int create_flush_cmd_control(struct f2fs_sb_info *); |
1810 | void destroy_flush_cmd_control(struct f2fs_sb_info *); | |
39a53e0c | 1811 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
6e2c64ad | 1812 | bool is_checkpointed_data(struct f2fs_sb_info *, block_t); |
5e443818 | 1813 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
836b5a63 | 1814 | void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); |
4b2fecc8 | 1815 | void release_discard_addrs(struct f2fs_sb_info *); |
e90c2d28 | 1816 | bool discard_next_dnode(struct f2fs_sb_info *, block_t); |
3fa06d7b | 1817 | int npages_for_summary_flush(struct f2fs_sb_info *, bool); |
39a53e0c | 1818 | void allocate_new_segments(struct f2fs_sb_info *); |
4b2fecc8 | 1819 | int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); |
39a53e0c | 1820 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); |
381722d2 | 1821 | void update_meta_page(struct f2fs_sb_info *, void *, block_t); |
577e3495 | 1822 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
05ca3632 JK |
1823 | void write_node_page(unsigned int, struct f2fs_io_info *); |
1824 | void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); | |
1825 | void rewrite_data_page(struct f2fs_io_info *); | |
4356e48e CY |
1826 | void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *, |
1827 | block_t, block_t, bool, bool); | |
528e3459 | 1828 | void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *, |
28bc106b | 1829 | block_t, block_t, unsigned char, bool, bool); |
bfad7c2d JK |
1830 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
1831 | block_t, block_t *, struct f2fs_summary *, int); | |
fec1d657 | 1832 | void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool); |
08b39fbd | 1833 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t); |
39a53e0c JK |
1834 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
1835 | void write_node_summaries(struct f2fs_sb_info *, block_t); | |
dfc08a12 | 1836 | int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int); |
4b2fecc8 | 1837 | void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); |
39a53e0c | 1838 | int build_segment_manager(struct f2fs_sb_info *); |
39a53e0c | 1839 | void destroy_segment_manager(struct f2fs_sb_info *); |
7fd9e544 JK |
1840 | int __init create_segment_manager_caches(void); |
1841 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
1842 | |
1843 | /* | |
1844 | * checkpoint.c | |
1845 | */ | |
1846 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); | |
1847 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); | |
2b947003 | 1848 | struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t); |
f0c9cada | 1849 | bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); |
26879fb1 | 1850 | int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool); |
635aee1f | 1851 | void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); |
39a53e0c | 1852 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
a49324f1 CY |
1853 | void add_ino_entry(struct f2fs_sb_info *, nid_t, int type); |
1854 | void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type); | |
1855 | void release_ino_entry(struct f2fs_sb_info *); | |
fff04f90 | 1856 | bool exist_written_data(struct f2fs_sb_info *, nid_t, int); |
cbd56e7d JK |
1857 | int acquire_orphan_inode(struct f2fs_sb_info *); |
1858 | void release_orphan_inode(struct f2fs_sb_info *); | |
39a53e0c JK |
1859 | void add_orphan_inode(struct f2fs_sb_info *, nid_t); |
1860 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); | |
8c14bfad | 1861 | int recover_orphan_inodes(struct f2fs_sb_info *); |
39a53e0c | 1862 | int get_valid_checkpoint(struct f2fs_sb_info *); |
a7ffdbe2 | 1863 | void update_dirty_page(struct inode *, struct page *); |
5deb8267 | 1864 | void add_dirty_dir_inode(struct inode *); |
c227f912 | 1865 | void remove_dirty_inode(struct inode *); |
6d5a1495 | 1866 | int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type); |
c34f42e2 | 1867 | int write_checkpoint(struct f2fs_sb_info *, struct cp_control *); |
6451e041 | 1868 | void init_ino_entry_info(struct f2fs_sb_info *); |
6e6093a8 | 1869 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
1870 | void destroy_checkpoint_caches(void); |
1871 | ||
1872 | /* | |
1873 | * data.c | |
1874 | */ | |
458e6197 | 1875 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
0c3a5797 CY |
1876 | void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *, |
1877 | struct page *, nid_t, enum page_type, int); | |
406657dd | 1878 | void f2fs_flush_merged_bios(struct f2fs_sb_info *); |
05ca3632 JK |
1879 | int f2fs_submit_page_bio(struct f2fs_io_info *); |
1880 | void f2fs_submit_page_mbio(struct f2fs_io_info *); | |
216a620a | 1881 | void set_data_blkaddr(struct dnode_of_data *); |
f28b3434 | 1882 | void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t); |
39a53e0c | 1883 | int reserve_new_block(struct dnode_of_data *); |
759af1c9 | 1884 | int f2fs_get_block(struct dnode_of_data *, pgoff_t); |
b439b103 | 1885 | ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *); |
b600965c | 1886 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
a56c7c6f | 1887 | struct page *get_read_data_page(struct inode *, pgoff_t, int, bool); |
43f3eae1 | 1888 | struct page *find_data_page(struct inode *, pgoff_t); |
a56c7c6f | 1889 | struct page *get_lock_data_page(struct inode *, pgoff_t, bool); |
64aa7ed9 | 1890 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
05ca3632 | 1891 | int do_write_data_page(struct f2fs_io_info *); |
d323d005 | 1892 | int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int); |
9ab70134 | 1893 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
487261f3 CY |
1894 | void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); |
1895 | int f2fs_release_page(struct page *, gfp_t); | |
39a53e0c JK |
1896 | |
1897 | /* | |
1898 | * gc.c | |
1899 | */ | |
1900 | int start_gc_thread(struct f2fs_sb_info *); | |
1901 | void stop_gc_thread(struct f2fs_sb_info *); | |
81ca7350 | 1902 | block_t start_bidx_of_node(unsigned int, struct inode *); |
d530d4d8 | 1903 | int f2fs_gc(struct f2fs_sb_info *, bool); |
39a53e0c | 1904 | void build_gc_manager(struct f2fs_sb_info *); |
39a53e0c JK |
1905 | |
1906 | /* | |
1907 | * recovery.c | |
1908 | */ | |
6ead1142 | 1909 | int recover_fsync_data(struct f2fs_sb_info *); |
39a53e0c JK |
1910 | bool space_for_roll_forward(struct f2fs_sb_info *); |
1911 | ||
1912 | /* | |
1913 | * debug.c | |
1914 | */ | |
1915 | #ifdef CONFIG_F2FS_STAT_FS | |
1916 | struct f2fs_stat_info { | |
1917 | struct list_head stat_list; | |
1918 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
1919 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
1920 | int main_area_segs, main_area_sections, main_area_zones; | |
5b7ee374 CY |
1921 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
1922 | unsigned long long hit_total, total_ext; | |
c00ba554 | 1923 | int ext_tree, zombie_tree, ext_node; |
33fbd510 CY |
1924 | int ndirty_node, ndirty_meta; |
1925 | int ndirty_dent, ndirty_dirs, ndirty_data, ndirty_files; | |
dd4e4b59 | 1926 | int nats, dirty_nats, sits, dirty_sits, fnids; |
39a53e0c | 1927 | int total_count, utilization; |
d5e8f6c9 CY |
1928 | int bg_gc, inmem_pages, wb_pages; |
1929 | int inline_xattr, inline_inode, inline_dir; | |
39a53e0c JK |
1930 | unsigned int valid_count, valid_node_count, valid_inode_count; |
1931 | unsigned int bimodal, avg_vblocks; | |
1932 | int util_free, util_valid, util_invalid; | |
1933 | int rsvd_segs, overp_segs; | |
1934 | int dirty_count, node_pages, meta_pages; | |
42190d2a | 1935 | int prefree_count, call_count, cp_count, bg_cp_count; |
39a53e0c | 1936 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 1937 | int bg_node_segs, bg_data_segs; |
39a53e0c | 1938 | int tot_blks, data_blks, node_blks; |
e1235983 | 1939 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
1940 | int curseg[NR_CURSEG_TYPE]; |
1941 | int cursec[NR_CURSEG_TYPE]; | |
1942 | int curzone[NR_CURSEG_TYPE]; | |
1943 | ||
1944 | unsigned int segment_count[2]; | |
1945 | unsigned int block_count[2]; | |
b9a2c252 | 1946 | unsigned int inplace_count; |
9edcdabf | 1947 | unsigned long long base_mem, cache_mem, page_mem; |
39a53e0c JK |
1948 | }; |
1949 | ||
963d4f7d GZ |
1950 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
1951 | { | |
6c311ec6 | 1952 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
1953 | } |
1954 | ||
942e0be6 | 1955 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
42190d2a | 1956 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
dcdfff65 JK |
1957 | #define stat_inc_call_count(si) ((si)->call_count++) |
1958 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
33fbd510 CY |
1959 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
1960 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) | |
5b7ee374 CY |
1961 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
1962 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
1963 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
1964 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
d5e8f6c9 CY |
1965 | #define stat_inc_inline_xattr(inode) \ |
1966 | do { \ | |
1967 | if (f2fs_has_inline_xattr(inode)) \ | |
1968 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
1969 | } while (0) | |
1970 | #define stat_dec_inline_xattr(inode) \ | |
1971 | do { \ | |
1972 | if (f2fs_has_inline_xattr(inode)) \ | |
1973 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
1974 | } while (0) | |
0dbdc2ae JK |
1975 | #define stat_inc_inline_inode(inode) \ |
1976 | do { \ | |
1977 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 1978 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
1979 | } while (0) |
1980 | #define stat_dec_inline_inode(inode) \ | |
1981 | do { \ | |
1982 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 1983 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 1984 | } while (0) |
3289c061 JK |
1985 | #define stat_inc_inline_dir(inode) \ |
1986 | do { \ | |
1987 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 1988 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
1989 | } while (0) |
1990 | #define stat_dec_inline_dir(inode) \ | |
1991 | do { \ | |
1992 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 1993 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 1994 | } while (0) |
dcdfff65 JK |
1995 | #define stat_inc_seg_type(sbi, curseg) \ |
1996 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
1997 | #define stat_inc_block_count(sbi, curseg) \ | |
1998 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
1999 | #define stat_inc_inplace_blocks(sbi) \ |
2000 | (atomic_inc(&(sbi)->inplace_count)) | |
e1235983 | 2001 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 2002 | do { \ |
963d4f7d | 2003 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c | 2004 | (si)->tot_segs++; \ |
e1235983 | 2005 | if (type == SUM_TYPE_DATA) { \ |
39a53e0c | 2006 | si->data_segs++; \ |
e1235983 CL |
2007 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2008 | } else { \ | |
39a53e0c | 2009 | si->node_segs++; \ |
e1235983 CL |
2010 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2011 | } \ | |
39a53e0c JK |
2012 | } while (0) |
2013 | ||
2014 | #define stat_inc_tot_blk_count(si, blks) \ | |
2015 | (si->tot_blks += (blks)) | |
2016 | ||
e1235983 | 2017 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2018 | do { \ |
963d4f7d | 2019 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2020 | stat_inc_tot_blk_count(si, blks); \ |
2021 | si->data_blks += (blks); \ | |
e1235983 | 2022 | si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2023 | } while (0) |
2024 | ||
e1235983 | 2025 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2026 | do { \ |
963d4f7d | 2027 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2028 | stat_inc_tot_blk_count(si, blks); \ |
2029 | si->node_blks += (blks); \ | |
e1235983 | 2030 | si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2031 | } while (0) |
2032 | ||
2033 | int f2fs_build_stats(struct f2fs_sb_info *); | |
2034 | void f2fs_destroy_stats(struct f2fs_sb_info *); | |
787c7b8c | 2035 | int __init f2fs_create_root_stats(void); |
4589d25d | 2036 | void f2fs_destroy_root_stats(void); |
39a53e0c | 2037 | #else |
942e0be6 | 2038 | #define stat_inc_cp_count(si) |
42190d2a | 2039 | #define stat_inc_bg_cp_count(si) |
39a53e0c | 2040 | #define stat_inc_call_count(si) |
dcdfff65 | 2041 | #define stat_inc_bggc_count(si) |
33fbd510 CY |
2042 | #define stat_inc_dirty_inode(sbi, type) |
2043 | #define stat_dec_dirty_inode(sbi, type) | |
dcdfff65 | 2044 | #define stat_inc_total_hit(sb) |
029e13cc | 2045 | #define stat_inc_rbtree_node_hit(sb) |
91c481ff CY |
2046 | #define stat_inc_largest_node_hit(sbi) |
2047 | #define stat_inc_cached_node_hit(sbi) | |
d5e8f6c9 CY |
2048 | #define stat_inc_inline_xattr(inode) |
2049 | #define stat_dec_inline_xattr(inode) | |
0dbdc2ae JK |
2050 | #define stat_inc_inline_inode(inode) |
2051 | #define stat_dec_inline_inode(inode) | |
3289c061 JK |
2052 | #define stat_inc_inline_dir(inode) |
2053 | #define stat_dec_inline_dir(inode) | |
dcdfff65 JK |
2054 | #define stat_inc_seg_type(sbi, curseg) |
2055 | #define stat_inc_block_count(sbi, curseg) | |
b9a2c252 | 2056 | #define stat_inc_inplace_blocks(sbi) |
e1235983 | 2057 | #define stat_inc_seg_count(sbi, type, gc_type) |
39a53e0c | 2058 | #define stat_inc_tot_blk_count(si, blks) |
e1235983 CL |
2059 | #define stat_inc_data_blk_count(sbi, blks, gc_type) |
2060 | #define stat_inc_node_blk_count(sbi, blks, gc_type) | |
39a53e0c JK |
2061 | |
2062 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
2063 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
787c7b8c | 2064 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
4589d25d | 2065 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
2066 | #endif |
2067 | ||
2068 | extern const struct file_operations f2fs_dir_operations; | |
2069 | extern const struct file_operations f2fs_file_operations; | |
2070 | extern const struct inode_operations f2fs_file_inode_operations; | |
2071 | extern const struct address_space_operations f2fs_dblock_aops; | |
2072 | extern const struct address_space_operations f2fs_node_aops; | |
2073 | extern const struct address_space_operations f2fs_meta_aops; | |
2074 | extern const struct inode_operations f2fs_dir_inode_operations; | |
2075 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
cbaf042a | 2076 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
39a53e0c | 2077 | extern const struct inode_operations f2fs_special_inode_operations; |
29e7043f | 2078 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 2079 | |
e18c65b2 HL |
2080 | /* |
2081 | * inline.c | |
2082 | */ | |
01b960e9 JK |
2083 | bool f2fs_may_inline_data(struct inode *); |
2084 | bool f2fs_may_inline_dentry(struct inode *); | |
b3d208f9 | 2085 | void read_inline_data(struct page *, struct page *); |
0bfcfcca | 2086 | bool truncate_inline_inode(struct page *, u64); |
e18c65b2 | 2087 | int f2fs_read_inline_data(struct inode *, struct page *); |
b3d208f9 JK |
2088 | int f2fs_convert_inline_page(struct dnode_of_data *, struct page *); |
2089 | int f2fs_convert_inline_inode(struct inode *); | |
2090 | int f2fs_write_inline_data(struct inode *, struct page *); | |
0342fd30 | 2091 | bool recover_inline_data(struct inode *, struct page *); |
6e22c691 | 2092 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *, |
0b81d077 | 2093 | struct fscrypt_name *, struct page **); |
201a05be CY |
2094 | struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *, struct page **); |
2095 | int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); | |
510022a8 JK |
2096 | int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *, |
2097 | nid_t, umode_t); | |
201a05be CY |
2098 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, |
2099 | struct inode *, struct inode *); | |
2100 | bool f2fs_empty_inline_dir(struct inode *); | |
d8c6822a | 2101 | int f2fs_read_inline_dir(struct file *, struct dir_context *, |
0b81d077 | 2102 | struct fscrypt_str *); |
67f8cf3c JK |
2103 | int f2fs_inline_data_fiemap(struct inode *, |
2104 | struct fiemap_extent_info *, __u64, __u64); | |
cde4de12 | 2105 | |
2658e50d JK |
2106 | /* |
2107 | * shrinker.c | |
2108 | */ | |
2109 | unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *); | |
2110 | unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *); | |
2111 | void f2fs_join_shrinker(struct f2fs_sb_info *); | |
2112 | void f2fs_leave_shrinker(struct f2fs_sb_info *); | |
2113 | ||
a28ef1f5 CY |
2114 | /* |
2115 | * extent_cache.c | |
2116 | */ | |
2117 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); | |
ed3d1256 | 2118 | bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); |
a28ef1f5 CY |
2119 | unsigned int f2fs_destroy_extent_node(struct inode *); |
2120 | void f2fs_destroy_extent_tree(struct inode *); | |
2121 | bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *); | |
2122 | void f2fs_update_extent_cache(struct dnode_of_data *); | |
19b2c30d CY |
2123 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
2124 | pgoff_t, block_t, unsigned int); | |
a28ef1f5 CY |
2125 | void init_extent_cache_info(struct f2fs_sb_info *); |
2126 | int __init create_extent_cache(void); | |
2127 | void destroy_extent_cache(void); | |
2128 | ||
cde4de12 JK |
2129 | /* |
2130 | * crypto support | |
2131 | */ | |
0b81d077 | 2132 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
cde4de12 | 2133 | { |
cde4de12 | 2134 | return file_is_encrypt(inode); |
cde4de12 JK |
2135 | } |
2136 | ||
2137 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
2138 | { | |
2139 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2140 | file_set_encrypt(inode); | |
2141 | #endif | |
2142 | } | |
2143 | ||
2144 | static inline bool f2fs_bio_encrypted(struct bio *bio) | |
2145 | { | |
0b81d077 | 2146 | return bio->bi_private != NULL; |
cde4de12 JK |
2147 | } |
2148 | ||
2149 | static inline int f2fs_sb_has_crypto(struct super_block *sb) | |
2150 | { | |
cde4de12 | 2151 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
cde4de12 | 2152 | } |
f424f664 | 2153 | |
fcc85a4d JK |
2154 | static inline bool f2fs_may_encrypt(struct inode *inode) |
2155 | { | |
2156 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
886f56f9 | 2157 | umode_t mode = inode->i_mode; |
fcc85a4d JK |
2158 | |
2159 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
2160 | #else | |
2161 | return 0; | |
2162 | #endif | |
2163 | } | |
2164 | ||
0b81d077 JK |
2165 | #ifndef CONFIG_F2FS_FS_ENCRYPTION |
2166 | #define fscrypt_set_d_op(i) | |
2167 | #define fscrypt_get_ctx fscrypt_notsupp_get_ctx | |
2168 | #define fscrypt_release_ctx fscrypt_notsupp_release_ctx | |
2169 | #define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page | |
2170 | #define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page | |
2171 | #define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages | |
2172 | #define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page | |
2173 | #define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page | |
2174 | #define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range | |
2175 | #define fscrypt_process_policy fscrypt_notsupp_process_policy | |
2176 | #define fscrypt_get_policy fscrypt_notsupp_get_policy | |
2177 | #define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context | |
2178 | #define fscrypt_inherit_context fscrypt_notsupp_inherit_context | |
2179 | #define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info | |
2180 | #define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info | |
2181 | #define fscrypt_setup_filename fscrypt_notsupp_setup_filename | |
2182 | #define fscrypt_free_filename fscrypt_notsupp_free_filename | |
2183 | #define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size | |
2184 | #define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer | |
2185 | #define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer | |
2186 | #define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr | |
2187 | #define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk | |
57e5055b | 2188 | #endif |
39a53e0c | 2189 | #endif |