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> |
39a53e0c | 24 | |
5d56b671 | 25 | #ifdef CONFIG_F2FS_CHECK_FS |
9850cf4a | 26 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) |
0daaad97 | 27 | #define f2fs_down_write(x, y) down_write_nest_lock(x, y) |
5d56b671 | 28 | #else |
9850cf4a JK |
29 | #define f2fs_bug_on(sbi, condition) \ |
30 | do { \ | |
31 | if (unlikely(condition)) { \ | |
32 | WARN_ON(1); \ | |
caf0047e | 33 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ |
9850cf4a JK |
34 | } \ |
35 | } while (0) | |
0daaad97 | 36 | #define f2fs_down_write(x, y) down_write(x) |
5d56b671 JK |
37 | #endif |
38 | ||
39a53e0c JK |
39 | /* |
40 | * For mount options | |
41 | */ | |
42 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
43 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
44 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
45 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
46 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
47 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
48 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 49 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 50 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
34d67deb CY |
51 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
52 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
53 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
d5053a34 | 54 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
89672159 | 55 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
6aefd93b | 56 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
39a53e0c JK |
57 | |
58 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) | |
59 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) | |
60 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) | |
61 | ||
62 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
63 | typecheck(unsigned long long, b) && \ | |
64 | ((long long)((a) - (b)) > 0)) | |
65 | ||
a9841c4d JK |
66 | typedef u32 block_t; /* |
67 | * should not change u32, since it is the on-disk block | |
68 | * address format, __le32. | |
69 | */ | |
39a53e0c JK |
70 | typedef u32 nid_t; |
71 | ||
72 | struct f2fs_mount_info { | |
73 | unsigned int opt; | |
74 | }; | |
75 | ||
cde4de12 JK |
76 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
77 | ||
76f105a2 JK |
78 | #define F2FS_HAS_FEATURE(sb, mask) \ |
79 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) | |
80 | #define F2FS_SET_FEATURE(sb, mask) \ | |
81 | F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask) | |
82 | #define F2FS_CLEAR_FEATURE(sb, mask) \ | |
83 | F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) | |
84 | ||
7e586fa0 JK |
85 | #define CRCPOLY_LE 0xedb88320 |
86 | ||
87 | static inline __u32 f2fs_crc32(void *buf, size_t len) | |
39a53e0c | 88 | { |
7e586fa0 JK |
89 | unsigned char *p = (unsigned char *)buf; |
90 | __u32 crc = F2FS_SUPER_MAGIC; | |
91 | int i; | |
92 | ||
93 | while (len--) { | |
94 | crc ^= *p++; | |
95 | for (i = 0; i < 8; i++) | |
96 | crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0); | |
97 | } | |
98 | return crc; | |
39a53e0c JK |
99 | } |
100 | ||
7e586fa0 | 101 | static inline bool f2fs_crc_valid(__u32 blk_crc, void *buf, size_t buf_size) |
39a53e0c | 102 | { |
7e586fa0 | 103 | return f2fs_crc32(buf, buf_size) == blk_crc; |
39a53e0c JK |
104 | } |
105 | ||
106 | /* | |
107 | * For checkpoint manager | |
108 | */ | |
109 | enum { | |
110 | NAT_BITMAP, | |
111 | SIT_BITMAP | |
112 | }; | |
113 | ||
75ab4cb8 JK |
114 | enum { |
115 | CP_UMOUNT, | |
119ee914 | 116 | CP_FASTBOOT, |
75ab4cb8 | 117 | CP_SYNC, |
10027551 | 118 | CP_RECOVERY, |
4b2fecc8 | 119 | CP_DISCARD, |
75ab4cb8 JK |
120 | }; |
121 | ||
bba681cb JK |
122 | #define DEF_BATCHED_TRIM_SECTIONS 32 |
123 | #define BATCHED_TRIM_SEGMENTS(sbi) \ | |
124 | (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) | |
a66cdd98 JK |
125 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
126 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
60b99b48 | 127 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
bba681cb | 128 | |
75ab4cb8 JK |
129 | struct cp_control { |
130 | int reason; | |
4b2fecc8 JK |
131 | __u64 trim_start; |
132 | __u64 trim_end; | |
133 | __u64 trim_minlen; | |
134 | __u64 trimmed; | |
75ab4cb8 JK |
135 | }; |
136 | ||
662befda | 137 | /* |
81c1a0f1 | 138 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
139 | */ |
140 | enum { | |
141 | META_CP, | |
142 | META_NAT, | |
81c1a0f1 | 143 | META_SIT, |
4c521f49 JK |
144 | META_SSA, |
145 | META_POR, | |
662befda CY |
146 | }; |
147 | ||
6451e041 JK |
148 | /* for the list of ino */ |
149 | enum { | |
150 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
151 | APPEND_INO, /* for append ino list */ |
152 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
153 | MAX_INO_ENTRY, /* max. list */ |
154 | }; | |
155 | ||
156 | struct ino_entry { | |
39a53e0c JK |
157 | struct list_head list; /* list head */ |
158 | nid_t ino; /* inode number */ | |
159 | }; | |
160 | ||
06292073 CY |
161 | /* |
162 | * for the list of directory inodes or gc inodes. | |
163 | * NOTE: there are two slab users for this structure, if we add/modify/delete | |
164 | * fields in structure for one of slab users, it may affect fields or size of | |
165 | * other one, in this condition, it's better to split both of slab and related | |
166 | * data structure. | |
167 | */ | |
168 | struct inode_entry { | |
39a53e0c JK |
169 | struct list_head list; /* list head */ |
170 | struct inode *inode; /* vfs inode pointer */ | |
171 | }; | |
172 | ||
7fd9e544 JK |
173 | /* for the list of blockaddresses to be discarded */ |
174 | struct discard_entry { | |
175 | struct list_head list; /* list head */ | |
176 | block_t blkaddr; /* block address to be discarded */ | |
177 | int len; /* # of consecutive blocks of the discard */ | |
178 | }; | |
179 | ||
39a53e0c JK |
180 | /* for the list of fsync inodes, used only during recovery */ |
181 | struct fsync_inode_entry { | |
182 | struct list_head list; /* list head */ | |
183 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
184 | block_t blkaddr; /* block address locating the last fsync */ |
185 | block_t last_dentry; /* block address locating the last dentry */ | |
186 | block_t last_inode; /* block address locating the last inode */ | |
39a53e0c JK |
187 | }; |
188 | ||
189 | #define nats_in_cursum(sum) (le16_to_cpu(sum->n_nats)) | |
190 | #define sits_in_cursum(sum) (le16_to_cpu(sum->n_sits)) | |
191 | ||
192 | #define nat_in_journal(sum, i) (sum->nat_j.entries[i].ne) | |
193 | #define nid_in_journal(sum, i) (sum->nat_j.entries[i].nid) | |
194 | #define sit_in_journal(sum, i) (sum->sit_j.entries[i].se) | |
195 | #define segno_in_journal(sum, i) (sum->sit_j.entries[i].segno) | |
196 | ||
309cc2b6 JK |
197 | #define MAX_NAT_JENTRIES(sum) (NAT_JOURNAL_ENTRIES - nats_in_cursum(sum)) |
198 | #define MAX_SIT_JENTRIES(sum) (SIT_JOURNAL_ENTRIES - sits_in_cursum(sum)) | |
199 | ||
39a53e0c JK |
200 | static inline int update_nats_in_cursum(struct f2fs_summary_block *rs, int i) |
201 | { | |
202 | int before = nats_in_cursum(rs); | |
203 | rs->n_nats = cpu_to_le16(before + i); | |
204 | return before; | |
205 | } | |
206 | ||
207 | static inline int update_sits_in_cursum(struct f2fs_summary_block *rs, int i) | |
208 | { | |
209 | int before = sits_in_cursum(rs); | |
210 | rs->n_sits = cpu_to_le16(before + i); | |
211 | return before; | |
212 | } | |
213 | ||
184a5cd2 CY |
214 | static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size, |
215 | int type) | |
216 | { | |
217 | if (type == NAT_JOURNAL) | |
309cc2b6 JK |
218 | return size <= MAX_NAT_JENTRIES(sum); |
219 | return size <= MAX_SIT_JENTRIES(sum); | |
184a5cd2 CY |
220 | } |
221 | ||
e9750824 NJ |
222 | /* |
223 | * ioctl commands | |
224 | */ | |
88b88a66 JK |
225 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
226 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 227 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
228 | |
229 | #define F2FS_IOCTL_MAGIC 0xf5 | |
230 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
231 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 232 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
233 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
234 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
c1c1b583 | 235 | #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6) |
456b88e4 | 236 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
e9750824 | 237 | |
f424f664 JK |
238 | #define F2FS_IOC_SET_ENCRYPTION_POLICY \ |
239 | _IOR('f', 19, struct f2fs_encryption_policy) | |
240 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT \ | |
241 | _IOW('f', 20, __u8[16]) | |
242 | #define F2FS_IOC_GET_ENCRYPTION_POLICY \ | |
243 | _IOW('f', 21, struct f2fs_encryption_policy) | |
244 | ||
1abff93d JK |
245 | /* |
246 | * should be same as XFS_IOC_GOINGDOWN. | |
247 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
248 | */ | |
249 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
250 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
251 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
252 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
253 | ||
e9750824 NJ |
254 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
255 | /* | |
256 | * ioctl commands in 32 bit emulation | |
257 | */ | |
258 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS | |
259 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
260 | #endif | |
261 | ||
39a53e0c JK |
262 | /* |
263 | * For INODE and NODE manager | |
264 | */ | |
7b3cd7d6 | 265 | /* for directory operations */ |
6b3bd08f JK |
266 | struct f2fs_str { |
267 | unsigned char *name; | |
268 | u32 len; | |
269 | }; | |
270 | ||
271 | struct f2fs_filename { | |
272 | const struct qstr *usr_fname; | |
273 | struct f2fs_str disk_name; | |
274 | f2fs_hash_t hash; | |
275 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
276 | struct f2fs_str crypto_buf; | |
277 | #endif | |
278 | }; | |
279 | ||
280 | #define FSTR_INIT(n, l) { .name = n, .len = l } | |
281 | #define FSTR_TO_QSTR(f) QSTR_INIT((f)->name, (f)->len) | |
282 | #define fname_name(p) ((p)->disk_name.name) | |
283 | #define fname_len(p) ((p)->disk_name.len) | |
284 | ||
7b3cd7d6 | 285 | struct f2fs_dentry_ptr { |
d8c6822a | 286 | struct inode *inode; |
7b3cd7d6 JK |
287 | const void *bitmap; |
288 | struct f2fs_dir_entry *dentry; | |
289 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
290 | int max; | |
291 | }; | |
292 | ||
d8c6822a JK |
293 | static inline void make_dentry_ptr(struct inode *inode, |
294 | struct f2fs_dentry_ptr *d, void *src, int type) | |
7b3cd7d6 | 295 | { |
d8c6822a JK |
296 | d->inode = inode; |
297 | ||
7b3cd7d6 JK |
298 | if (type == 1) { |
299 | struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src; | |
300 | d->max = NR_DENTRY_IN_BLOCK; | |
301 | d->bitmap = &t->dentry_bitmap; | |
302 | d->dentry = t->dentry; | |
303 | d->filename = t->filename; | |
304 | } else { | |
305 | struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src; | |
306 | d->max = NR_INLINE_DENTRY; | |
307 | d->bitmap = &t->dentry_bitmap; | |
308 | d->dentry = t->dentry; | |
309 | d->filename = t->filename; | |
310 | } | |
311 | } | |
312 | ||
dbe6a5ff JK |
313 | /* |
314 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
315 | * as its node offset to distinguish from index node blocks. | |
316 | * But some bits are used to mark the node block. | |
317 | */ | |
318 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
319 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
320 | enum { |
321 | ALLOC_NODE, /* allocate a new node page if needed */ | |
322 | LOOKUP_NODE, /* look up a node without readahead */ | |
323 | LOOKUP_NODE_RA, /* | |
324 | * look up a node with readahead called | |
4f4124d0 | 325 | * by get_data_block. |
39a53e0c | 326 | */ |
266e97a8 JK |
327 | }; |
328 | ||
a6db67f0 | 329 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
39a53e0c | 330 | |
817202d9 CY |
331 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
332 | ||
13054c54 CY |
333 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
334 | #define EXT_TREE_VEC_SIZE 64 | |
335 | ||
39a53e0c | 336 | /* for in-memory extent cache entry */ |
13054c54 CY |
337 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
338 | ||
339 | /* number of extent info in extent cache we try to shrink */ | |
340 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 341 | |
39a53e0c | 342 | struct extent_info { |
13054c54 CY |
343 | unsigned int fofs; /* start offset in a file */ |
344 | u32 blk; /* start block address of the extent */ | |
345 | unsigned int len; /* length of the extent */ | |
346 | }; | |
347 | ||
348 | struct extent_node { | |
349 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
350 | struct list_head list; /* node in global extent list of sbi */ | |
351 | struct extent_info ei; /* extent info */ | |
352 | }; | |
353 | ||
354 | struct extent_tree { | |
355 | nid_t ino; /* inode number */ | |
356 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 357 | struct extent_node *cached_en; /* recently accessed extent node */ |
3e72f721 | 358 | struct extent_info largest; /* largested extent info */ |
13054c54 CY |
359 | rwlock_t lock; /* protect extent info rb-tree */ |
360 | atomic_t refcount; /* reference count of rb-tree */ | |
361 | unsigned int count; /* # of extent node in rb-tree*/ | |
39a53e0c JK |
362 | }; |
363 | ||
003a3e1d JK |
364 | /* |
365 | * This structure is taken from ext4_map_blocks. | |
366 | * | |
367 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
368 | */ | |
369 | #define F2FS_MAP_NEW (1 << BH_New) | |
370 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
7f63eb77 JK |
371 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
372 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
373 | F2FS_MAP_UNWRITTEN) | |
003a3e1d JK |
374 | |
375 | struct f2fs_map_blocks { | |
376 | block_t m_pblk; | |
377 | block_t m_lblk; | |
378 | unsigned int m_len; | |
379 | unsigned int m_flags; | |
380 | }; | |
381 | ||
e2b4e2bc CY |
382 | /* for flag in get_data_block */ |
383 | #define F2FS_GET_BLOCK_READ 0 | |
384 | #define F2FS_GET_BLOCK_DIO 1 | |
385 | #define F2FS_GET_BLOCK_FIEMAP 2 | |
386 | #define F2FS_GET_BLOCK_BMAP 3 | |
387 | ||
39a53e0c JK |
388 | /* |
389 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
390 | */ | |
391 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 392 | #define FADVISE_LOST_PINO_BIT 0x02 |
cde4de12 | 393 | #define FADVISE_ENCRYPT_BIT 0x04 |
e7d55452 | 394 | #define FADVISE_ENC_NAME_BIT 0x08 |
39a53e0c | 395 | |
b5492af7 JK |
396 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
397 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
398 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
399 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
400 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
401 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
cde4de12 JK |
402 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
403 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
404 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
e7d55452 JK |
405 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
406 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
cde4de12 JK |
407 | |
408 | /* Encryption algorithms */ | |
409 | #define F2FS_ENCRYPTION_MODE_INVALID 0 | |
410 | #define F2FS_ENCRYPTION_MODE_AES_256_XTS 1 | |
411 | #define F2FS_ENCRYPTION_MODE_AES_256_GCM 2 | |
412 | #define F2FS_ENCRYPTION_MODE_AES_256_CBC 3 | |
413 | #define F2FS_ENCRYPTION_MODE_AES_256_CTS 4 | |
b5492af7 | 414 | |
f424f664 JK |
415 | #include "f2fs_crypto.h" |
416 | ||
ab9fa662 JK |
417 | #define DEF_DIR_LEVEL 0 |
418 | ||
39a53e0c JK |
419 | struct f2fs_inode_info { |
420 | struct inode vfs_inode; /* serve a vfs inode */ | |
421 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
422 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 423 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 424 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 425 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
426 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
427 | ||
428 | /* Use below internally in f2fs*/ | |
429 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 430 | struct rw_semaphore i_sem; /* protect fi info */ |
a7ffdbe2 | 431 | atomic_t dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
432 | f2fs_hash_t chash; /* hash value of given file name */ |
433 | unsigned int clevel; /* maximum level of given file name */ | |
434 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
e518ff81 | 435 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
06292073 | 436 | struct inode_entry *dirty_dir; /* the pointer of dirty dir */ |
88b88a66 JK |
437 | |
438 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ | |
439 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
cde4de12 | 440 | |
3e72f721 JK |
441 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
442 | ||
cde4de12 JK |
443 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
444 | /* Encryption params */ | |
445 | struct f2fs_crypt_info *i_crypt_info; | |
446 | #endif | |
39a53e0c JK |
447 | }; |
448 | ||
449 | static inline void get_extent_info(struct extent_info *ext, | |
450 | struct f2fs_extent i_ext) | |
451 | { | |
39a53e0c | 452 | ext->fofs = le32_to_cpu(i_ext.fofs); |
4d0b0bd4 | 453 | ext->blk = le32_to_cpu(i_ext.blk); |
39a53e0c | 454 | ext->len = le32_to_cpu(i_ext.len); |
39a53e0c JK |
455 | } |
456 | ||
457 | static inline void set_raw_extent(struct extent_info *ext, | |
458 | struct f2fs_extent *i_ext) | |
459 | { | |
39a53e0c | 460 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 461 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 462 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
463 | } |
464 | ||
429511cd CY |
465 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
466 | u32 blk, unsigned int len) | |
467 | { | |
468 | ei->fofs = fofs; | |
469 | ei->blk = blk; | |
470 | ei->len = len; | |
471 | } | |
472 | ||
0bdee482 CY |
473 | static inline bool __is_extent_same(struct extent_info *ei1, |
474 | struct extent_info *ei2) | |
475 | { | |
476 | return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && | |
477 | ei1->len == ei2->len); | |
478 | } | |
479 | ||
429511cd CY |
480 | static inline bool __is_extent_mergeable(struct extent_info *back, |
481 | struct extent_info *front) | |
482 | { | |
483 | return (back->fofs + back->len == front->fofs && | |
484 | back->blk + back->len == front->blk); | |
485 | } | |
486 | ||
487 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
488 | struct extent_info *back) | |
489 | { | |
490 | return __is_extent_mergeable(back, cur); | |
491 | } | |
492 | ||
493 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
494 | struct extent_info *front) | |
495 | { | |
496 | return __is_extent_mergeable(cur, front); | |
497 | } | |
498 | ||
4abd3f5a CY |
499 | static inline void __try_update_largest_extent(struct extent_tree *et, |
500 | struct extent_node *en) | |
501 | { | |
502 | if (en->ei.len > et->largest.len) | |
503 | et->largest = en->ei; | |
504 | } | |
505 | ||
39a53e0c JK |
506 | struct f2fs_nm_info { |
507 | block_t nat_blkaddr; /* base disk address of NAT */ | |
508 | nid_t max_nid; /* maximum possible node ids */ | |
7ee0eeab | 509 | nid_t available_nids; /* maximum available node ids */ |
39a53e0c | 510 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 511 | unsigned int ram_thresh; /* control the memory footprint */ |
39a53e0c JK |
512 | |
513 | /* NAT cache management */ | |
514 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 515 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
8b26ef98 | 516 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 517 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 518 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 519 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
39a53e0c JK |
520 | |
521 | /* free node ids management */ | |
8a7ed66a | 522 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
39a53e0c JK |
523 | struct list_head free_nid_list; /* a list for free nids */ |
524 | spinlock_t free_nid_list_lock; /* protect free nid list */ | |
525 | unsigned int fcnt; /* the number of free node id */ | |
526 | struct mutex build_lock; /* lock for build free nids */ | |
527 | ||
528 | /* for checkpoint */ | |
529 | char *nat_bitmap; /* NAT bitmap pointer */ | |
530 | int bitmap_size; /* bitmap size */ | |
531 | }; | |
532 | ||
533 | /* | |
534 | * this structure is used as one of function parameters. | |
535 | * all the information are dedicated to a given direct node block determined | |
536 | * by the data offset in a file. | |
537 | */ | |
538 | struct dnode_of_data { | |
539 | struct inode *inode; /* vfs inode pointer */ | |
540 | struct page *inode_page; /* its inode page, NULL is possible */ | |
541 | struct page *node_page; /* cached direct node page */ | |
542 | nid_t nid; /* node id of the direct node block */ | |
543 | unsigned int ofs_in_node; /* data offset in the node page */ | |
544 | bool inode_page_locked; /* inode page is locked or not */ | |
545 | block_t data_blkaddr; /* block address of the node block */ | |
546 | }; | |
547 | ||
548 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
549 | struct page *ipage, struct page *npage, nid_t nid) | |
550 | { | |
d66d1f76 | 551 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
552 | dn->inode = inode; |
553 | dn->inode_page = ipage; | |
554 | dn->node_page = npage; | |
555 | dn->nid = nid; | |
39a53e0c JK |
556 | } |
557 | ||
558 | /* | |
559 | * For SIT manager | |
560 | * | |
561 | * By default, there are 6 active log areas across the whole main area. | |
562 | * When considering hot and cold data separation to reduce cleaning overhead, | |
563 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
564 | * respectively. | |
565 | * In the current design, you should not change the numbers intentionally. | |
566 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
567 | * logs individually according to the underlying devices. (default: 6) | |
568 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
569 | * data and 8 for node logs. | |
570 | */ | |
571 | #define NR_CURSEG_DATA_TYPE (3) | |
572 | #define NR_CURSEG_NODE_TYPE (3) | |
573 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
574 | ||
575 | enum { | |
576 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
577 | CURSEG_WARM_DATA, /* data blocks */ | |
578 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
579 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
580 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
581 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 JK |
582 | NO_CHECK_TYPE, |
583 | CURSEG_DIRECT_IO, /* to use for the direct IO path */ | |
39a53e0c JK |
584 | }; |
585 | ||
6b4afdd7 | 586 | struct flush_cmd { |
6b4afdd7 | 587 | struct completion wait; |
721bd4d5 | 588 | struct llist_node llnode; |
6b4afdd7 JK |
589 | int ret; |
590 | }; | |
591 | ||
a688b9d9 GZ |
592 | struct flush_cmd_control { |
593 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
594 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
721bd4d5 GZ |
595 | struct llist_head issue_list; /* list for command issue */ |
596 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
597 | }; |
598 | ||
39a53e0c JK |
599 | struct f2fs_sm_info { |
600 | struct sit_info *sit_info; /* whole segment information */ | |
601 | struct free_segmap_info *free_info; /* free segment information */ | |
602 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
603 | struct curseg_info *curseg_array; /* active segment information */ | |
604 | ||
39a53e0c JK |
605 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
606 | block_t main_blkaddr; /* start block address of main area */ | |
607 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
608 | ||
609 | unsigned int segment_count; /* total # of segments */ | |
610 | unsigned int main_segments; /* # of segments in main area */ | |
611 | unsigned int reserved_segments; /* # of reserved segments */ | |
612 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
613 | |
614 | /* a threshold to reclaim prefree segments */ | |
615 | unsigned int rec_prefree_segments; | |
7fd9e544 JK |
616 | |
617 | /* for small discard management */ | |
618 | struct list_head discard_list; /* 4KB discard list */ | |
619 | int nr_discards; /* # of discards in the list */ | |
620 | int max_discards; /* max. discards to be issued */ | |
216fbd64 | 621 | |
bba681cb JK |
622 | /* for batched trimming */ |
623 | unsigned int trim_sections; /* # of sections to trim */ | |
624 | ||
184a5cd2 CY |
625 | struct list_head sit_entry_set; /* sit entry set list */ |
626 | ||
216fbd64 JK |
627 | unsigned int ipu_policy; /* in-place-update policy */ |
628 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 629 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
6b4afdd7 JK |
630 | |
631 | /* for flush command control */ | |
a688b9d9 GZ |
632 | struct flush_cmd_control *cmd_control_info; |
633 | ||
39a53e0c JK |
634 | }; |
635 | ||
39a53e0c JK |
636 | /* |
637 | * For superblock | |
638 | */ | |
639 | /* | |
640 | * COUNT_TYPE for monitoring | |
641 | * | |
642 | * f2fs monitors the number of several block types such as on-writeback, | |
643 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
644 | */ | |
645 | enum count_type { | |
646 | F2FS_WRITEBACK, | |
647 | F2FS_DIRTY_DENTS, | |
648 | F2FS_DIRTY_NODES, | |
649 | F2FS_DIRTY_META, | |
8dcf2ff7 | 650 | F2FS_INMEM_PAGES, |
39a53e0c JK |
651 | NR_COUNT_TYPE, |
652 | }; | |
653 | ||
39a53e0c | 654 | /* |
e1c42045 | 655 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
656 | * The available types are: |
657 | * DATA User data pages. It operates as async mode. | |
658 | * NODE Node pages. It operates as async mode. | |
659 | * META FS metadata pages such as SIT, NAT, CP. | |
660 | * NR_PAGE_TYPE The number of page types. | |
661 | * META_FLUSH Make sure the previous pages are written | |
662 | * with waiting the bio's completion | |
663 | * ... Only can be used with META. | |
664 | */ | |
7d5e5109 | 665 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
666 | enum page_type { |
667 | DATA, | |
668 | NODE, | |
669 | META, | |
670 | NR_PAGE_TYPE, | |
671 | META_FLUSH, | |
8ce67cb0 JK |
672 | INMEM, /* the below types are used by tracepoints only. */ |
673 | INMEM_DROP, | |
674 | IPU, | |
675 | OPU, | |
39a53e0c JK |
676 | }; |
677 | ||
458e6197 | 678 | struct f2fs_io_info { |
05ca3632 | 679 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 GZ |
680 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
681 | int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */ | |
cf04e8eb | 682 | block_t blk_addr; /* block address to be written */ |
05ca3632 | 683 | struct page *page; /* page to be written */ |
4375a336 | 684 | struct page *encrypted_page; /* encrypted page */ |
458e6197 JK |
685 | }; |
686 | ||
93dfe2ac | 687 | #define is_read_io(rw) (((rw) & 1) == READ) |
1ff7bd3b | 688 | struct f2fs_bio_info { |
458e6197 | 689 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
690 | struct bio *bio; /* bios to merge */ |
691 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 692 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 693 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
694 | }; |
695 | ||
67298804 CY |
696 | /* for inner inode cache management */ |
697 | struct inode_management { | |
698 | struct radix_tree_root ino_root; /* ino entry array */ | |
699 | spinlock_t ino_lock; /* for ino entry lock */ | |
700 | struct list_head ino_list; /* inode list head */ | |
701 | unsigned long ino_num; /* number of entries */ | |
702 | }; | |
703 | ||
caf0047e CY |
704 | /* For s_flag in struct f2fs_sb_info */ |
705 | enum { | |
706 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
707 | SBI_IS_CLOSE, /* specify unmounting */ | |
708 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
709 | SBI_POR_DOING, /* recovery is doing or not */ | |
710 | }; | |
711 | ||
39a53e0c JK |
712 | struct f2fs_sb_info { |
713 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 714 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c JK |
715 | struct buffer_head *raw_super_buf; /* buffer head of raw sb */ |
716 | struct f2fs_super_block *raw_super; /* raw super block pointer */ | |
caf0047e | 717 | int s_flag; /* flags for sbi */ |
39a53e0c JK |
718 | |
719 | /* for node-related operations */ | |
720 | struct f2fs_nm_info *nm_info; /* node manager */ | |
721 | struct inode *node_inode; /* cache node blocks */ | |
722 | ||
723 | /* for segment-related operations */ | |
724 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
725 | |
726 | /* for bio operations */ | |
924b720b | 727 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 728 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
39a53e0c JK |
729 | |
730 | /* for checkpoint */ | |
731 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
732 | struct inode *meta_inode; /* cache meta blocks */ | |
39936837 | 733 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
e479556b | 734 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 735 | struct rw_semaphore node_write; /* locking node writes */ |
5463e7c1 | 736 | struct mutex writepages; /* mutex for writepages() */ |
fb51b5ef | 737 | wait_queue_head_t cp_wait; |
60b99b48 | 738 | long cp_expires, cp_interval; /* next expected periodic cp */ |
39a53e0c | 739 | |
67298804 | 740 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
741 | |
742 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 743 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c JK |
744 | |
745 | /* for directory inode management */ | |
746 | struct list_head dir_inode_list; /* dir inode list */ | |
747 | spinlock_t dir_inode_lock; /* for dir inode list lock */ | |
39a53e0c | 748 | |
13054c54 CY |
749 | /* for extent tree cache */ |
750 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
751 | struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ | |
752 | struct list_head extent_list; /* lru list for shrinker */ | |
753 | spinlock_t extent_lock; /* locking extent lru list */ | |
754 | int total_ext_tree; /* extent tree count */ | |
755 | atomic_t total_ext_node; /* extent info count */ | |
756 | ||
e1c42045 | 757 | /* basic filesystem units */ |
39a53e0c JK |
758 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
759 | unsigned int log_blocksize; /* log2 block size */ | |
760 | unsigned int blocksize; /* block size */ | |
761 | unsigned int root_ino_num; /* root inode number*/ | |
762 | unsigned int node_ino_num; /* node inode number*/ | |
763 | unsigned int meta_ino_num; /* meta inode number*/ | |
764 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
765 | unsigned int blocks_per_seg; /* blocks per segment */ | |
766 | unsigned int segs_per_sec; /* segments per section */ | |
767 | unsigned int secs_per_zone; /* sections per zone */ | |
768 | unsigned int total_sections; /* total section count */ | |
769 | unsigned int total_node_count; /* total node block count */ | |
770 | unsigned int total_valid_node_count; /* valid node block count */ | |
771 | unsigned int total_valid_inode_count; /* valid inode count */ | |
772 | int active_logs; /* # of active logs */ | |
ab9fa662 | 773 | int dir_level; /* directory level */ |
39a53e0c JK |
774 | |
775 | block_t user_block_count; /* # of user blocks */ | |
776 | block_t total_valid_block_count; /* # of valid blocks */ | |
777 | block_t alloc_valid_block_count; /* # of allocated blocks */ | |
a66cdd98 | 778 | block_t discard_blks; /* discard command candidats */ |
39a53e0c JK |
779 | block_t last_valid_block_count; /* for recovery */ |
780 | u32 s_next_generation; /* for NFS support */ | |
781 | atomic_t nr_pages[NR_COUNT_TYPE]; /* # of pages, see count_type */ | |
782 | ||
783 | struct f2fs_mount_info mount_opt; /* mount options */ | |
784 | ||
785 | /* for cleaning operations */ | |
786 | struct mutex gc_mutex; /* mutex for GC */ | |
787 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 788 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 789 | |
b1c57c1c JK |
790 | /* maximum # of trials to find a victim segment for SSR and GC */ |
791 | unsigned int max_victim_search; | |
792 | ||
39a53e0c JK |
793 | /* |
794 | * for stat information. | |
795 | * one is for the LFS mode, and the other is for the SSR mode. | |
796 | */ | |
35b09d82 | 797 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
798 | struct f2fs_stat_info *stat_info; /* FS status information */ |
799 | unsigned int segment_count[2]; /* # of allocated segments */ | |
800 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 801 | atomic_t inplace_count; /* # of inplace update */ |
5b7ee374 CY |
802 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
803 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
804 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
805 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
d5e8f6c9 | 806 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
03e14d52 CY |
807 | atomic_t inline_inode; /* # of inline_data inodes */ |
808 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
39a53e0c | 809 | int bg_gc; /* background gc calls */ |
35b09d82 NJ |
810 | unsigned int n_dirty_dirs; /* # of dir inodes */ |
811 | #endif | |
812 | unsigned int last_victim[2]; /* last victim segment # */ | |
39a53e0c | 813 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
814 | |
815 | /* For sysfs suppport */ | |
816 | struct kobject s_kobj; | |
817 | struct completion s_kobj_unregister; | |
2658e50d JK |
818 | |
819 | /* For shrinker support */ | |
820 | struct list_head s_list; | |
821 | struct mutex umount_mutex; | |
822 | unsigned int shrinker_run_no; | |
39a53e0c JK |
823 | }; |
824 | ||
825 | /* | |
826 | * Inline functions | |
827 | */ | |
828 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) | |
829 | { | |
830 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
831 | } | |
832 | ||
833 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
834 | { | |
835 | return sb->s_fs_info; | |
836 | } | |
837 | ||
4081363f JK |
838 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
839 | { | |
840 | return F2FS_SB(inode->i_sb); | |
841 | } | |
842 | ||
843 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
844 | { | |
845 | return F2FS_I_SB(mapping->host); | |
846 | } | |
847 | ||
848 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
849 | { | |
850 | return F2FS_M_SB(page->mapping); | |
851 | } | |
852 | ||
39a53e0c JK |
853 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
854 | { | |
855 | return (struct f2fs_super_block *)(sbi->raw_super); | |
856 | } | |
857 | ||
858 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
859 | { | |
860 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
861 | } | |
862 | ||
45590710 GZ |
863 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
864 | { | |
865 | return (struct f2fs_node *)page_address(page); | |
866 | } | |
867 | ||
58bfaf44 JK |
868 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
869 | { | |
870 | return &((struct f2fs_node *)page_address(page))->i; | |
871 | } | |
872 | ||
39a53e0c JK |
873 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
874 | { | |
875 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
876 | } | |
877 | ||
878 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
879 | { | |
880 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
881 | } | |
882 | ||
883 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
884 | { | |
885 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
886 | } | |
887 | ||
888 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
889 | { | |
890 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
891 | } | |
892 | ||
893 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
894 | { | |
895 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
896 | } | |
897 | ||
9df27d98 GZ |
898 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
899 | { | |
900 | return sbi->meta_inode->i_mapping; | |
901 | } | |
902 | ||
4ef51a8f JK |
903 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
904 | { | |
905 | return sbi->node_inode->i_mapping; | |
906 | } | |
907 | ||
caf0047e CY |
908 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
909 | { | |
910 | return sbi->s_flag & (0x01 << type); | |
911 | } | |
912 | ||
913 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 914 | { |
caf0047e | 915 | sbi->s_flag |= (0x01 << type); |
39a53e0c JK |
916 | } |
917 | ||
caf0047e | 918 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 919 | { |
caf0047e | 920 | sbi->s_flag &= ~(0x01 << type); |
39a53e0c JK |
921 | } |
922 | ||
d71b5564 JK |
923 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
924 | { | |
925 | return le64_to_cpu(cp->checkpoint_ver); | |
926 | } | |
927 | ||
25ca923b JK |
928 | static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
929 | { | |
930 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
931 | return ckpt_flags & f; | |
932 | } | |
933 | ||
934 | static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
935 | { | |
936 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
937 | ckpt_flags |= f; | |
938 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
939 | } | |
940 | ||
941 | static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
942 | { | |
943 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
944 | ckpt_flags &= (~f); | |
945 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
946 | } | |
947 | ||
e479556b | 948 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 949 | { |
e479556b | 950 | down_read(&sbi->cp_rwsem); |
39936837 JK |
951 | } |
952 | ||
e479556b | 953 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 954 | { |
e479556b | 955 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
956 | } |
957 | ||
e479556b | 958 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 959 | { |
0daaad97 | 960 | f2fs_down_write(&sbi->cp_rwsem, &sbi->cp_mutex); |
39936837 JK |
961 | } |
962 | ||
e479556b | 963 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 964 | { |
e479556b | 965 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
966 | } |
967 | ||
119ee914 JK |
968 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
969 | { | |
970 | int reason = CP_SYNC; | |
971 | ||
972 | if (test_opt(sbi, FASTBOOT)) | |
973 | reason = CP_FASTBOOT; | |
974 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
975 | reason = CP_UMOUNT; | |
976 | return reason; | |
977 | } | |
978 | ||
979 | static inline bool __remain_node_summaries(int reason) | |
980 | { | |
981 | return (reason == CP_UMOUNT || reason == CP_FASTBOOT); | |
982 | } | |
983 | ||
984 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
985 | { | |
986 | return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || | |
987 | is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); | |
988 | } | |
989 | ||
39a53e0c JK |
990 | /* |
991 | * Check whether the given nid is within node id range. | |
992 | */ | |
064e0823 | 993 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 994 | { |
d6b7d4b3 CY |
995 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
996 | return -EINVAL; | |
cfb271d4 | 997 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
998 | return -EINVAL; |
999 | return 0; | |
39a53e0c JK |
1000 | } |
1001 | ||
1002 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
1003 | ||
1004 | /* | |
1005 | * Check whether the inode has blocks or not | |
1006 | */ | |
1007 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1008 | { | |
1009 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 1010 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 1011 | else |
6c311ec6 | 1012 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
1013 | } |
1014 | ||
4bc8e9bc CY |
1015 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
1016 | { | |
1017 | return ofs == XATTR_NODE_OFFSET; | |
1018 | } | |
1019 | ||
39a53e0c JK |
1020 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
1021 | struct inode *inode, blkcnt_t count) | |
1022 | { | |
1023 | block_t valid_block_count; | |
1024 | ||
1025 | spin_lock(&sbi->stat_lock); | |
1026 | valid_block_count = | |
1027 | sbi->total_valid_block_count + (block_t)count; | |
cfb271d4 | 1028 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1029 | spin_unlock(&sbi->stat_lock); |
1030 | return false; | |
1031 | } | |
1032 | inode->i_blocks += count; | |
1033 | sbi->total_valid_block_count = valid_block_count; | |
1034 | sbi->alloc_valid_block_count += (block_t)count; | |
1035 | spin_unlock(&sbi->stat_lock); | |
1036 | return true; | |
1037 | } | |
1038 | ||
da19b0dc | 1039 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
1040 | struct inode *inode, |
1041 | blkcnt_t count) | |
1042 | { | |
1043 | spin_lock(&sbi->stat_lock); | |
9850cf4a JK |
1044 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
1045 | f2fs_bug_on(sbi, inode->i_blocks < count); | |
39a53e0c JK |
1046 | inode->i_blocks -= count; |
1047 | sbi->total_valid_block_count -= (block_t)count; | |
1048 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1049 | } |
1050 | ||
1051 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1052 | { | |
1053 | atomic_inc(&sbi->nr_pages[count_type]); | |
caf0047e | 1054 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
1055 | } |
1056 | ||
a7ffdbe2 | 1057 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 1058 | { |
a7ffdbe2 JK |
1059 | atomic_inc(&F2FS_I(inode)->dirty_pages); |
1060 | if (S_ISDIR(inode->i_mode)) | |
1061 | inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS); | |
39a53e0c JK |
1062 | } |
1063 | ||
1064 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1065 | { | |
1066 | atomic_dec(&sbi->nr_pages[count_type]); | |
1067 | } | |
1068 | ||
a7ffdbe2 | 1069 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 1070 | { |
5ac9f36f CY |
1071 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1072 | !S_ISLNK(inode->i_mode)) | |
1fe54f9d JK |
1073 | return; |
1074 | ||
a7ffdbe2 JK |
1075 | atomic_dec(&F2FS_I(inode)->dirty_pages); |
1076 | ||
1077 | if (S_ISDIR(inode->i_mode)) | |
1078 | dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS); | |
39a53e0c JK |
1079 | } |
1080 | ||
1081 | static inline int get_pages(struct f2fs_sb_info *sbi, int count_type) | |
1082 | { | |
1083 | return atomic_read(&sbi->nr_pages[count_type]); | |
1084 | } | |
1085 | ||
a7ffdbe2 | 1086 | static inline int get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1087 | { |
a7ffdbe2 | 1088 | return atomic_read(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1089 | } |
1090 | ||
5ac206cf NJ |
1091 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1092 | { | |
1093 | unsigned int pages_per_sec = sbi->segs_per_sec * | |
1094 | (1 << sbi->log_blocks_per_seg); | |
1095 | return ((get_pages(sbi, block_type) + pages_per_sec - 1) | |
1096 | >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; | |
1097 | } | |
1098 | ||
39a53e0c JK |
1099 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1100 | { | |
8b8343fa | 1101 | return sbi->total_valid_block_count; |
39a53e0c JK |
1102 | } |
1103 | ||
1104 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) | |
1105 | { | |
1106 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1107 | ||
1108 | /* return NAT or SIT bitmap */ | |
1109 | if (flag == NAT_BITMAP) | |
1110 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1111 | else if (flag == SIT_BITMAP) | |
1112 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1113 | ||
1114 | return 0; | |
1115 | } | |
1116 | ||
55141486 WL |
1117 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1118 | { | |
1119 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1120 | } | |
1121 | ||
39a53e0c JK |
1122 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1123 | { | |
1124 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1125 | int offset; |
1126 | ||
55141486 | 1127 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1128 | if (flag == NAT_BITMAP) |
1129 | return &ckpt->sit_nat_version_bitmap; | |
1130 | else | |
65b85ccc | 1131 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1132 | } else { |
1133 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1134 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1135 | return &ckpt->sit_nat_version_bitmap + offset; |
1136 | } | |
39a53e0c JK |
1137 | } |
1138 | ||
1139 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1140 | { | |
1141 | block_t start_addr; | |
1142 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d71b5564 | 1143 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
39a53e0c | 1144 | |
25ca923b | 1145 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c JK |
1146 | |
1147 | /* | |
1148 | * odd numbered checkpoint should at cp segment 0 | |
e1c42045 | 1149 | * and even segment must be at cp segment 1 |
39a53e0c JK |
1150 | */ |
1151 | if (!(ckpt_version & 1)) | |
1152 | start_addr += sbi->blocks_per_seg; | |
1153 | ||
1154 | return start_addr; | |
1155 | } | |
1156 | ||
1157 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
1158 | { | |
1159 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1160 | } | |
1161 | ||
1162 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1163 | struct inode *inode) |
39a53e0c JK |
1164 | { |
1165 | block_t valid_block_count; | |
1166 | unsigned int valid_node_count; | |
1167 | ||
1168 | spin_lock(&sbi->stat_lock); | |
1169 | ||
ef86d709 | 1170 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 1171 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1172 | spin_unlock(&sbi->stat_lock); |
1173 | return false; | |
1174 | } | |
1175 | ||
ef86d709 | 1176 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1177 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1178 | spin_unlock(&sbi->stat_lock); |
1179 | return false; | |
1180 | } | |
1181 | ||
1182 | if (inode) | |
ef86d709 GZ |
1183 | inode->i_blocks++; |
1184 | ||
1185 | sbi->alloc_valid_block_count++; | |
1186 | sbi->total_valid_node_count++; | |
1187 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1188 | spin_unlock(&sbi->stat_lock); |
1189 | ||
1190 | return true; | |
1191 | } | |
1192 | ||
1193 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1194 | struct inode *inode) |
39a53e0c JK |
1195 | { |
1196 | spin_lock(&sbi->stat_lock); | |
1197 | ||
9850cf4a JK |
1198 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1199 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1200 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1201 | |
ef86d709 GZ |
1202 | inode->i_blocks--; |
1203 | sbi->total_valid_node_count--; | |
1204 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1205 | |
1206 | spin_unlock(&sbi->stat_lock); | |
1207 | } | |
1208 | ||
1209 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1210 | { | |
8b8343fa | 1211 | return sbi->total_valid_node_count; |
39a53e0c JK |
1212 | } |
1213 | ||
1214 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1215 | { | |
1216 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1217 | f2fs_bug_on(sbi, sbi->total_valid_inode_count == sbi->total_node_count); |
39a53e0c JK |
1218 | sbi->total_valid_inode_count++; |
1219 | spin_unlock(&sbi->stat_lock); | |
1220 | } | |
1221 | ||
0e80220a | 1222 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c JK |
1223 | { |
1224 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1225 | f2fs_bug_on(sbi, !sbi->total_valid_inode_count); |
39a53e0c JK |
1226 | sbi->total_valid_inode_count--; |
1227 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1228 | } |
1229 | ||
1230 | static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) | |
1231 | { | |
8b8343fa | 1232 | return sbi->total_valid_inode_count; |
39a53e0c JK |
1233 | } |
1234 | ||
1235 | static inline void f2fs_put_page(struct page *page, int unlock) | |
1236 | { | |
031fa8cc | 1237 | if (!page) |
39a53e0c JK |
1238 | return; |
1239 | ||
1240 | if (unlock) { | |
9850cf4a | 1241 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1242 | unlock_page(page); |
1243 | } | |
1244 | page_cache_release(page); | |
1245 | } | |
1246 | ||
1247 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1248 | { | |
1249 | if (dn->node_page) | |
1250 | f2fs_put_page(dn->node_page, 1); | |
1251 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1252 | f2fs_put_page(dn->inode_page, 0); | |
1253 | dn->node_page = NULL; | |
1254 | dn->inode_page = NULL; | |
1255 | } | |
1256 | ||
1257 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1258 | size_t size) |
39a53e0c | 1259 | { |
e8512d2e | 1260 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1261 | } |
1262 | ||
7bd59381 GZ |
1263 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1264 | gfp_t flags) | |
1265 | { | |
1266 | void *entry; | |
7bd59381 | 1267 | |
80c54505 JK |
1268 | entry = kmem_cache_alloc(cachep, flags); |
1269 | if (!entry) | |
1270 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
7bd59381 GZ |
1271 | return entry; |
1272 | } | |
1273 | ||
740432f8 JK |
1274 | static inline struct bio *f2fs_bio_alloc(int npages) |
1275 | { | |
1276 | struct bio *bio; | |
1277 | ||
1278 | /* No failure on bio allocation */ | |
740432f8 | 1279 | bio = bio_alloc(GFP_NOIO, npages); |
80c54505 JK |
1280 | if (!bio) |
1281 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); | |
740432f8 JK |
1282 | return bio; |
1283 | } | |
1284 | ||
9be32d72 JK |
1285 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1286 | unsigned long index, void *item) | |
1287 | { | |
1288 | while (radix_tree_insert(root, index, item)) | |
1289 | cond_resched(); | |
1290 | } | |
1291 | ||
39a53e0c JK |
1292 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1293 | ||
1294 | static inline bool IS_INODE(struct page *page) | |
1295 | { | |
45590710 | 1296 | struct f2fs_node *p = F2FS_NODE(page); |
39a53e0c JK |
1297 | return RAW_IS_INODE(p); |
1298 | } | |
1299 | ||
1300 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1301 | { | |
1302 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1303 | } | |
1304 | ||
1305 | static inline block_t datablock_addr(struct page *node_page, | |
1306 | unsigned int offset) | |
1307 | { | |
1308 | struct f2fs_node *raw_node; | |
1309 | __le32 *addr_array; | |
45590710 | 1310 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1311 | addr_array = blkaddr_in_node(raw_node); |
1312 | return le32_to_cpu(addr_array[offset]); | |
1313 | } | |
1314 | ||
1315 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1316 | { | |
1317 | int mask; | |
1318 | ||
1319 | addr += (nr >> 3); | |
1320 | mask = 1 << (7 - (nr & 0x07)); | |
1321 | return mask & *addr; | |
1322 | } | |
1323 | ||
a66cdd98 JK |
1324 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1325 | { | |
1326 | int mask; | |
1327 | ||
1328 | addr += (nr >> 3); | |
1329 | mask = 1 << (7 - (nr & 0x07)); | |
1330 | *addr |= mask; | |
1331 | } | |
1332 | ||
1333 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
1334 | { | |
1335 | int mask; | |
1336 | ||
1337 | addr += (nr >> 3); | |
1338 | mask = 1 << (7 - (nr & 0x07)); | |
1339 | *addr &= ~mask; | |
1340 | } | |
1341 | ||
52aca074 | 1342 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1343 | { |
1344 | int mask; | |
1345 | int ret; | |
1346 | ||
1347 | addr += (nr >> 3); | |
1348 | mask = 1 << (7 - (nr & 0x07)); | |
1349 | ret = mask & *addr; | |
1350 | *addr |= mask; | |
1351 | return ret; | |
1352 | } | |
1353 | ||
52aca074 | 1354 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1355 | { |
1356 | int mask; | |
1357 | int ret; | |
1358 | ||
1359 | addr += (nr >> 3); | |
1360 | mask = 1 << (7 - (nr & 0x07)); | |
1361 | ret = mask & *addr; | |
1362 | *addr &= ~mask; | |
1363 | return ret; | |
1364 | } | |
1365 | ||
c6ac4c0e GZ |
1366 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1367 | { | |
1368 | int mask; | |
1369 | ||
1370 | addr += (nr >> 3); | |
1371 | mask = 1 << (7 - (nr & 0x07)); | |
1372 | *addr ^= mask; | |
1373 | } | |
1374 | ||
39a53e0c JK |
1375 | /* used for f2fs_inode_info->flags */ |
1376 | enum { | |
1377 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1378 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
ed57c27f | 1379 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1380 | FI_INC_LINK, /* need to increment i_nlink */ |
1381 | FI_ACL_MODE, /* indicate acl mode */ | |
1382 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
c9b63bd0 | 1383 | FI_FREE_NID, /* free allocated nide */ |
699489bb | 1384 | FI_UPDATE_DIR, /* should update inode block for consistency */ |
74d0b917 | 1385 | FI_DELAY_IPUT, /* used for the recovery */ |
c11abd1a | 1386 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1387 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1388 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1389 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1390 | FI_APPEND_WRITE, /* inode has appended data */ |
1391 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1392 | FI_NEED_IPU, /* used for ipu per file */ |
1393 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
02a1335f | 1394 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1395 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1396 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1397 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1398 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
39a53e0c JK |
1399 | }; |
1400 | ||
1401 | static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1402 | { | |
61e0f2d0 JK |
1403 | if (!test_bit(flag, &fi->flags)) |
1404 | set_bit(flag, &fi->flags); | |
39a53e0c JK |
1405 | } |
1406 | ||
1407 | static inline int is_inode_flag_set(struct f2fs_inode_info *fi, int flag) | |
1408 | { | |
1409 | return test_bit(flag, &fi->flags); | |
1410 | } | |
1411 | ||
1412 | static inline void clear_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1413 | { | |
61e0f2d0 JK |
1414 | if (test_bit(flag, &fi->flags)) |
1415 | clear_bit(flag, &fi->flags); | |
39a53e0c JK |
1416 | } |
1417 | ||
1418 | static inline void set_acl_inode(struct f2fs_inode_info *fi, umode_t mode) | |
1419 | { | |
1420 | fi->i_acl_mode = mode; | |
1421 | set_inode_flag(fi, FI_ACL_MODE); | |
1422 | } | |
1423 | ||
444c580f JK |
1424 | static inline void get_inline_info(struct f2fs_inode_info *fi, |
1425 | struct f2fs_inode *ri) | |
1426 | { | |
1427 | if (ri->i_inline & F2FS_INLINE_XATTR) | |
1428 | set_inode_flag(fi, FI_INLINE_XATTR); | |
1001b347 HL |
1429 | if (ri->i_inline & F2FS_INLINE_DATA) |
1430 | set_inode_flag(fi, FI_INLINE_DATA); | |
34d67deb CY |
1431 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
1432 | set_inode_flag(fi, FI_INLINE_DENTRY); | |
b3d208f9 JK |
1433 | if (ri->i_inline & F2FS_DATA_EXIST) |
1434 | set_inode_flag(fi, FI_DATA_EXIST); | |
510022a8 JK |
1435 | if (ri->i_inline & F2FS_INLINE_DOTS) |
1436 | set_inode_flag(fi, FI_INLINE_DOTS); | |
444c580f JK |
1437 | } |
1438 | ||
1439 | static inline void set_raw_inline(struct f2fs_inode_info *fi, | |
1440 | struct f2fs_inode *ri) | |
1441 | { | |
1442 | ri->i_inline = 0; | |
1443 | ||
1444 | if (is_inode_flag_set(fi, FI_INLINE_XATTR)) | |
1445 | ri->i_inline |= F2FS_INLINE_XATTR; | |
1001b347 HL |
1446 | if (is_inode_flag_set(fi, FI_INLINE_DATA)) |
1447 | ri->i_inline |= F2FS_INLINE_DATA; | |
34d67deb CY |
1448 | if (is_inode_flag_set(fi, FI_INLINE_DENTRY)) |
1449 | ri->i_inline |= F2FS_INLINE_DENTRY; | |
b3d208f9 JK |
1450 | if (is_inode_flag_set(fi, FI_DATA_EXIST)) |
1451 | ri->i_inline |= F2FS_DATA_EXIST; | |
510022a8 JK |
1452 | if (is_inode_flag_set(fi, FI_INLINE_DOTS)) |
1453 | ri->i_inline |= F2FS_INLINE_DOTS; | |
444c580f JK |
1454 | } |
1455 | ||
987c7c31 CY |
1456 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1457 | { | |
1458 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR); | |
1459 | } | |
1460 | ||
de93653f JK |
1461 | static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi) |
1462 | { | |
987c7c31 | 1463 | if (f2fs_has_inline_xattr(&fi->vfs_inode)) |
de93653f JK |
1464 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1465 | return DEF_ADDRS_PER_INODE; | |
1466 | } | |
1467 | ||
65985d93 JK |
1468 | static inline void *inline_xattr_addr(struct page *page) |
1469 | { | |
695fd1ed | 1470 | struct f2fs_inode *ri = F2FS_INODE(page); |
65985d93 JK |
1471 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1472 | F2FS_INLINE_XATTR_ADDRS]); | |
1473 | } | |
1474 | ||
1475 | static inline int inline_xattr_size(struct inode *inode) | |
1476 | { | |
987c7c31 | 1477 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1478 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1479 | else | |
1480 | return 0; | |
1481 | } | |
1482 | ||
0dbdc2ae JK |
1483 | static inline int f2fs_has_inline_data(struct inode *inode) |
1484 | { | |
1485 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DATA); | |
1486 | } | |
1487 | ||
b3d208f9 JK |
1488 | static inline void f2fs_clear_inline_inode(struct inode *inode) |
1489 | { | |
1490 | clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA); | |
1491 | clear_inode_flag(F2FS_I(inode), FI_DATA_EXIST); | |
1492 | } | |
1493 | ||
1494 | static inline int f2fs_exist_data(struct inode *inode) | |
1495 | { | |
1496 | return is_inode_flag_set(F2FS_I(inode), FI_DATA_EXIST); | |
1497 | } | |
1498 | ||
510022a8 JK |
1499 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1500 | { | |
1501 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DOTS); | |
1502 | } | |
1503 | ||
88b88a66 JK |
1504 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1505 | { | |
1506 | return is_inode_flag_set(F2FS_I(inode), FI_ATOMIC_FILE); | |
1507 | } | |
1508 | ||
02a1335f JK |
1509 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
1510 | { | |
1511 | return is_inode_flag_set(F2FS_I(inode), FI_VOLATILE_FILE); | |
1512 | } | |
1513 | ||
3c6c2beb JK |
1514 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
1515 | { | |
1516 | return is_inode_flag_set(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN); | |
1517 | } | |
1518 | ||
1e84371f JK |
1519 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
1520 | { | |
1521 | return is_inode_flag_set(F2FS_I(inode), FI_DROP_CACHE); | |
1522 | } | |
1523 | ||
1001b347 HL |
1524 | static inline void *inline_data_addr(struct page *page) |
1525 | { | |
695fd1ed | 1526 | struct f2fs_inode *ri = F2FS_INODE(page); |
1001b347 HL |
1527 | return (void *)&(ri->i_addr[1]); |
1528 | } | |
1529 | ||
34d67deb CY |
1530 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
1531 | { | |
1532 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DENTRY); | |
1533 | } | |
1534 | ||
9486ba44 JK |
1535 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
1536 | { | |
1537 | if (!f2fs_has_inline_dentry(dir)) | |
1538 | kunmap(page); | |
1539 | } | |
1540 | ||
b5492af7 JK |
1541 | static inline int is_file(struct inode *inode, int type) |
1542 | { | |
1543 | return F2FS_I(inode)->i_advise & type; | |
1544 | } | |
1545 | ||
1546 | static inline void set_file(struct inode *inode, int type) | |
1547 | { | |
1548 | F2FS_I(inode)->i_advise |= type; | |
1549 | } | |
1550 | ||
1551 | static inline void clear_file(struct inode *inode, int type) | |
1552 | { | |
1553 | F2FS_I(inode)->i_advise &= ~type; | |
1554 | } | |
1555 | ||
77888c1e JK |
1556 | static inline int f2fs_readonly(struct super_block *sb) |
1557 | { | |
1558 | return sb->s_flags & MS_RDONLY; | |
1559 | } | |
1560 | ||
1e968fdf JK |
1561 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
1562 | { | |
1563 | return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1564 | } | |
1565 | ||
744602cf JK |
1566 | static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi) |
1567 | { | |
1568 | set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1569 | sbi->sb->s_flags |= MS_RDONLY; | |
1570 | } | |
1571 | ||
eaa693f4 JK |
1572 | static inline bool is_dot_dotdot(const struct qstr *str) |
1573 | { | |
1574 | if (str->len == 1 && str->name[0] == '.') | |
1575 | return true; | |
1576 | ||
1577 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
1578 | return true; | |
1579 | ||
1580 | return false; | |
1581 | } | |
1582 | ||
3e72f721 JK |
1583 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
1584 | { | |
1585 | mode_t mode = inode->i_mode; | |
1586 | ||
1587 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || | |
1588 | is_inode_flag_set(F2FS_I(inode), FI_NO_EXTENT)) | |
1589 | return false; | |
1590 | ||
1591 | return S_ISREG(mode); | |
1592 | } | |
1593 | ||
39307a8e JK |
1594 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
1595 | { | |
1596 | void *ret; | |
1597 | ||
1598 | ret = kmalloc(size, flags | __GFP_NOWARN); | |
1599 | if (!ret) | |
1600 | ret = __vmalloc(size, flags, PAGE_KERNEL); | |
1601 | return ret; | |
1602 | } | |
1603 | ||
1604 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) | |
1605 | { | |
1606 | void *ret; | |
1607 | ||
1608 | ret = kzalloc(size, flags | __GFP_NOWARN); | |
1609 | if (!ret) | |
1610 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); | |
1611 | return ret; | |
1612 | } | |
1613 | ||
a6dda0e6 CH |
1614 | #define get_inode_mode(i) \ |
1615 | ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ | |
1616 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) | |
1617 | ||
267378d4 CY |
1618 | /* get offset of first page in next direct node */ |
1619 | #define PGOFS_OF_NEXT_DNODE(pgofs, fi) \ | |
1620 | ((pgofs < ADDRS_PER_INODE(fi)) ? ADDRS_PER_INODE(fi) : \ | |
1621 | (pgofs - ADDRS_PER_INODE(fi) + ADDRS_PER_BLOCK) / \ | |
1622 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(fi)) | |
1623 | ||
39a53e0c JK |
1624 | /* |
1625 | * file.c | |
1626 | */ | |
1627 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); | |
1628 | void truncate_data_blocks(struct dnode_of_data *); | |
764aa3e9 | 1629 | int truncate_blocks(struct inode *, u64, bool); |
b0154891 | 1630 | int f2fs_truncate(struct inode *, bool); |
2d4d9fb5 | 1631 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
39a53e0c JK |
1632 | int f2fs_setattr(struct dentry *, struct iattr *); |
1633 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); | |
b292dcab | 1634 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
39a53e0c | 1635 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
e9750824 | 1636 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
39a53e0c JK |
1637 | |
1638 | /* | |
1639 | * inode.c | |
1640 | */ | |
1641 | void f2fs_set_inode_flags(struct inode *); | |
39a53e0c | 1642 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
4660f9c0 | 1643 | int try_to_free_nats(struct f2fs_sb_info *, int); |
39a53e0c | 1644 | void update_inode(struct inode *, struct page *); |
744602cf | 1645 | void update_inode_page(struct inode *); |
39a53e0c JK |
1646 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
1647 | void f2fs_evict_inode(struct inode *); | |
44c16156 | 1648 | void handle_failed_inode(struct inode *); |
39a53e0c JK |
1649 | |
1650 | /* | |
1651 | * namei.c | |
1652 | */ | |
1653 | struct dentry *f2fs_get_parent(struct dentry *child); | |
1654 | ||
1655 | /* | |
1656 | * dir.c | |
1657 | */ | |
dbeacf02 | 1658 | extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; |
510022a8 | 1659 | void set_de_type(struct f2fs_dir_entry *, umode_t); |
6e22c691 JK |
1660 | |
1661 | struct f2fs_dir_entry *find_target_dentry(struct f2fs_filename *, | |
1662 | f2fs_hash_t, int *, struct f2fs_dentry_ptr *); | |
7b3cd7d6 | 1663 | bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, |
d8c6822a | 1664 | unsigned int, struct f2fs_str *); |
062a3e7b JK |
1665 | void do_make_empty_dir(struct inode *, struct inode *, |
1666 | struct f2fs_dentry_ptr *); | |
dbeacf02 | 1667 | struct page *init_inode_metadata(struct inode *, struct inode *, |
bce8d112 | 1668 | const struct qstr *, struct page *); |
dbeacf02 | 1669 | void update_parent_metadata(struct inode *, struct inode *, unsigned int); |
a82afa20 | 1670 | int room_for_filename(const void *, int, int); |
dbeacf02 | 1671 | void f2fs_drop_nlink(struct inode *, struct inode *, struct page *); |
39a53e0c JK |
1672 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *, |
1673 | struct page **); | |
1674 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); | |
1675 | ino_t f2fs_inode_by_name(struct inode *, struct qstr *); | |
1676 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, | |
1677 | struct page *, struct inode *); | |
e7d55452 | 1678 | int update_dent_inode(struct inode *, struct inode *, const struct qstr *); |
510022a8 | 1679 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, |
3b4d732a | 1680 | const struct qstr *, f2fs_hash_t , unsigned int); |
510022a8 JK |
1681 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, |
1682 | umode_t); | |
dbeacf02 CY |
1683 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, |
1684 | struct inode *); | |
b97a9b5d | 1685 | int f2fs_do_tmpfile(struct inode *, struct inode *); |
39a53e0c JK |
1686 | bool f2fs_empty_dir(struct inode *); |
1687 | ||
b7f7a5e0 AV |
1688 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
1689 | { | |
2b0143b5 | 1690 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 1691 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
1692 | } |
1693 | ||
39a53e0c JK |
1694 | /* |
1695 | * super.c | |
1696 | */ | |
c5bda1c8 | 1697 | int f2fs_commit_super(struct f2fs_sb_info *, bool); |
39a53e0c | 1698 | int f2fs_sync_fs(struct super_block *, int); |
a07ef784 NJ |
1699 | extern __printf(3, 4) |
1700 | void f2fs_msg(struct super_block *, const char *, const char *, ...); | |
39a53e0c JK |
1701 | |
1702 | /* | |
1703 | * hash.c | |
1704 | */ | |
eee6160f | 1705 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *); |
39a53e0c JK |
1706 | |
1707 | /* | |
1708 | * node.c | |
1709 | */ | |
1710 | struct dnode_of_data; | |
1711 | struct node_info; | |
1712 | ||
6fb03f3a | 1713 | bool available_free_memory(struct f2fs_sb_info *, int); |
2dcf51ab | 1714 | int need_dentry_mark(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1715 | bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1716 | bool need_inode_block_update(struct f2fs_sb_info *, nid_t); |
39a53e0c JK |
1717 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
1718 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); | |
1719 | int truncate_inode_blocks(struct inode *, pgoff_t); | |
4f16fb0f | 1720 | int truncate_xattr_node(struct inode *, struct page *); |
cfe58f9d | 1721 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
13ec7297 | 1722 | int remove_inode_page(struct inode *); |
a014e037 | 1723 | struct page *new_inode_page(struct inode *); |
8ae8f162 | 1724 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
39a53e0c JK |
1725 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
1726 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); | |
1727 | struct page *get_node_page_ra(struct page *, int); | |
1728 | void sync_inode_page(struct dnode_of_data *); | |
1729 | int sync_node_pages(struct f2fs_sb_info *, nid_t, struct writeback_control *); | |
1730 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); | |
1731 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); | |
1732 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); | |
31696580 | 1733 | int try_to_free_nids(struct f2fs_sb_info *, int); |
70cfed88 | 1734 | void recover_inline_xattr(struct inode *, struct page *); |
1c35a90e | 1735 | void recover_xattr_data(struct inode *, struct page *, block_t); |
39a53e0c JK |
1736 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
1737 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, | |
1738 | struct f2fs_summary_block *); | |
1739 | void flush_nat_entries(struct f2fs_sb_info *); | |
1740 | int build_node_manager(struct f2fs_sb_info *); | |
1741 | void destroy_node_manager(struct f2fs_sb_info *); | |
6e6093a8 | 1742 | int __init create_node_manager_caches(void); |
39a53e0c JK |
1743 | void destroy_node_manager_caches(void); |
1744 | ||
1745 | /* | |
1746 | * segment.c | |
1747 | */ | |
88b88a66 | 1748 | void register_inmem_page(struct inode *, struct page *); |
edb27dee | 1749 | int commit_inmem_pages(struct inode *, bool); |
39a53e0c | 1750 | void f2fs_balance_fs(struct f2fs_sb_info *); |
4660f9c0 | 1751 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
6b4afdd7 | 1752 | int f2fs_issue_flush(struct f2fs_sb_info *); |
2163d198 GZ |
1753 | int create_flush_cmd_control(struct f2fs_sb_info *); |
1754 | void destroy_flush_cmd_control(struct f2fs_sb_info *); | |
39a53e0c | 1755 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
5e443818 | 1756 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
836b5a63 | 1757 | void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); |
4b2fecc8 | 1758 | void release_discard_addrs(struct f2fs_sb_info *); |
e90c2d28 | 1759 | bool discard_next_dnode(struct f2fs_sb_info *, block_t); |
3fa06d7b | 1760 | int npages_for_summary_flush(struct f2fs_sb_info *, bool); |
39a53e0c | 1761 | void allocate_new_segments(struct f2fs_sb_info *); |
4b2fecc8 | 1762 | int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); |
39a53e0c | 1763 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); |
381722d2 | 1764 | void update_meta_page(struct f2fs_sb_info *, void *, block_t); |
577e3495 | 1765 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
05ca3632 JK |
1766 | void write_node_page(unsigned int, struct f2fs_io_info *); |
1767 | void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); | |
1768 | void rewrite_data_page(struct f2fs_io_info *); | |
528e3459 CY |
1769 | void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *, |
1770 | block_t, block_t, unsigned char, bool); | |
bfad7c2d JK |
1771 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
1772 | block_t, block_t *, struct f2fs_summary *, int); | |
5514f0aa | 1773 | void f2fs_wait_on_page_writeback(struct page *, enum page_type); |
39a53e0c JK |
1774 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
1775 | void write_node_summaries(struct f2fs_sb_info *, block_t); | |
1776 | int lookup_journal_in_cursum(struct f2fs_summary_block *, | |
1777 | int, unsigned int, int); | |
4b2fecc8 | 1778 | void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); |
39a53e0c | 1779 | int build_segment_manager(struct f2fs_sb_info *); |
39a53e0c | 1780 | void destroy_segment_manager(struct f2fs_sb_info *); |
7fd9e544 JK |
1781 | int __init create_segment_manager_caches(void); |
1782 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
1783 | |
1784 | /* | |
1785 | * checkpoint.c | |
1786 | */ | |
1787 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); | |
1788 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); | |
f0c9cada | 1789 | bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); |
4c521f49 | 1790 | int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int); |
635aee1f | 1791 | void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); |
39a53e0c | 1792 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
fff04f90 JK |
1793 | void add_dirty_inode(struct f2fs_sb_info *, nid_t, int type); |
1794 | void remove_dirty_inode(struct f2fs_sb_info *, nid_t, int type); | |
6f12ac25 | 1795 | void release_dirty_inode(struct f2fs_sb_info *); |
fff04f90 | 1796 | bool exist_written_data(struct f2fs_sb_info *, nid_t, int); |
cbd56e7d JK |
1797 | int acquire_orphan_inode(struct f2fs_sb_info *); |
1798 | void release_orphan_inode(struct f2fs_sb_info *); | |
39a53e0c JK |
1799 | void add_orphan_inode(struct f2fs_sb_info *, nid_t); |
1800 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); | |
8c14bfad | 1801 | int recover_orphan_inodes(struct f2fs_sb_info *); |
39a53e0c | 1802 | int get_valid_checkpoint(struct f2fs_sb_info *); |
a7ffdbe2 | 1803 | void update_dirty_page(struct inode *, struct page *); |
5deb8267 | 1804 | void add_dirty_dir_inode(struct inode *); |
39a53e0c JK |
1805 | void remove_dirty_dir_inode(struct inode *); |
1806 | void sync_dirty_dir_inodes(struct f2fs_sb_info *); | |
75ab4cb8 | 1807 | void write_checkpoint(struct f2fs_sb_info *, struct cp_control *); |
6451e041 | 1808 | void init_ino_entry_info(struct f2fs_sb_info *); |
6e6093a8 | 1809 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
1810 | void destroy_checkpoint_caches(void); |
1811 | ||
1812 | /* | |
1813 | * data.c | |
1814 | */ | |
458e6197 | 1815 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
05ca3632 JK |
1816 | int f2fs_submit_page_bio(struct f2fs_io_info *); |
1817 | void f2fs_submit_page_mbio(struct f2fs_io_info *); | |
216a620a | 1818 | void set_data_blkaddr(struct dnode_of_data *); |
39a53e0c | 1819 | int reserve_new_block(struct dnode_of_data *); |
759af1c9 | 1820 | int f2fs_get_block(struct dnode_of_data *, pgoff_t); |
b600965c | 1821 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
43f3eae1 JK |
1822 | struct page *get_read_data_page(struct inode *, pgoff_t, int); |
1823 | struct page *find_data_page(struct inode *, pgoff_t); | |
39a53e0c | 1824 | struct page *get_lock_data_page(struct inode *, pgoff_t); |
64aa7ed9 | 1825 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
05ca3632 | 1826 | int do_write_data_page(struct f2fs_io_info *); |
9ab70134 | 1827 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
487261f3 CY |
1828 | void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); |
1829 | int f2fs_release_page(struct page *, gfp_t); | |
39a53e0c JK |
1830 | |
1831 | /* | |
1832 | * gc.c | |
1833 | */ | |
1834 | int start_gc_thread(struct f2fs_sb_info *); | |
1835 | void stop_gc_thread(struct f2fs_sb_info *); | |
de93653f | 1836 | block_t start_bidx_of_node(unsigned int, struct f2fs_inode_info *); |
d530d4d8 | 1837 | int f2fs_gc(struct f2fs_sb_info *, bool); |
39a53e0c | 1838 | void build_gc_manager(struct f2fs_sb_info *); |
39a53e0c JK |
1839 | |
1840 | /* | |
1841 | * recovery.c | |
1842 | */ | |
6ead1142 | 1843 | int recover_fsync_data(struct f2fs_sb_info *); |
39a53e0c JK |
1844 | bool space_for_roll_forward(struct f2fs_sb_info *); |
1845 | ||
1846 | /* | |
1847 | * debug.c | |
1848 | */ | |
1849 | #ifdef CONFIG_F2FS_STAT_FS | |
1850 | struct f2fs_stat_info { | |
1851 | struct list_head stat_list; | |
1852 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
1853 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
1854 | int main_area_segs, main_area_sections, main_area_zones; | |
5b7ee374 CY |
1855 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
1856 | unsigned long long hit_total, total_ext; | |
029e13cc | 1857 | int ext_tree, ext_node; |
39a53e0c | 1858 | int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta; |
dd4e4b59 | 1859 | int nats, dirty_nats, sits, dirty_sits, fnids; |
39a53e0c | 1860 | int total_count, utilization; |
d5e8f6c9 CY |
1861 | int bg_gc, inmem_pages, wb_pages; |
1862 | int inline_xattr, inline_inode, inline_dir; | |
39a53e0c JK |
1863 | unsigned int valid_count, valid_node_count, valid_inode_count; |
1864 | unsigned int bimodal, avg_vblocks; | |
1865 | int util_free, util_valid, util_invalid; | |
1866 | int rsvd_segs, overp_segs; | |
1867 | int dirty_count, node_pages, meta_pages; | |
942e0be6 | 1868 | int prefree_count, call_count, cp_count; |
39a53e0c | 1869 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 1870 | int bg_node_segs, bg_data_segs; |
39a53e0c | 1871 | int tot_blks, data_blks, node_blks; |
e1235983 | 1872 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
1873 | int curseg[NR_CURSEG_TYPE]; |
1874 | int cursec[NR_CURSEG_TYPE]; | |
1875 | int curzone[NR_CURSEG_TYPE]; | |
1876 | ||
1877 | unsigned int segment_count[2]; | |
1878 | unsigned int block_count[2]; | |
b9a2c252 | 1879 | unsigned int inplace_count; |
9edcdabf | 1880 | unsigned long long base_mem, cache_mem, page_mem; |
39a53e0c JK |
1881 | }; |
1882 | ||
963d4f7d GZ |
1883 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
1884 | { | |
6c311ec6 | 1885 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
1886 | } |
1887 | ||
942e0be6 | 1888 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
dcdfff65 JK |
1889 | #define stat_inc_call_count(si) ((si)->call_count++) |
1890 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
1891 | #define stat_inc_dirty_dir(sbi) ((sbi)->n_dirty_dirs++) | |
1892 | #define stat_dec_dirty_dir(sbi) ((sbi)->n_dirty_dirs--) | |
5b7ee374 CY |
1893 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
1894 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
1895 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
1896 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
d5e8f6c9 CY |
1897 | #define stat_inc_inline_xattr(inode) \ |
1898 | do { \ | |
1899 | if (f2fs_has_inline_xattr(inode)) \ | |
1900 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
1901 | } while (0) | |
1902 | #define stat_dec_inline_xattr(inode) \ | |
1903 | do { \ | |
1904 | if (f2fs_has_inline_xattr(inode)) \ | |
1905 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
1906 | } while (0) | |
0dbdc2ae JK |
1907 | #define stat_inc_inline_inode(inode) \ |
1908 | do { \ | |
1909 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 1910 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
1911 | } while (0) |
1912 | #define stat_dec_inline_inode(inode) \ | |
1913 | do { \ | |
1914 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 1915 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 1916 | } while (0) |
3289c061 JK |
1917 | #define stat_inc_inline_dir(inode) \ |
1918 | do { \ | |
1919 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 1920 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
1921 | } while (0) |
1922 | #define stat_dec_inline_dir(inode) \ | |
1923 | do { \ | |
1924 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 1925 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 1926 | } while (0) |
dcdfff65 JK |
1927 | #define stat_inc_seg_type(sbi, curseg) \ |
1928 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
1929 | #define stat_inc_block_count(sbi, curseg) \ | |
1930 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
1931 | #define stat_inc_inplace_blocks(sbi) \ |
1932 | (atomic_inc(&(sbi)->inplace_count)) | |
e1235983 | 1933 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 1934 | do { \ |
963d4f7d | 1935 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c | 1936 | (si)->tot_segs++; \ |
e1235983 | 1937 | if (type == SUM_TYPE_DATA) { \ |
39a53e0c | 1938 | si->data_segs++; \ |
e1235983 CL |
1939 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
1940 | } else { \ | |
39a53e0c | 1941 | si->node_segs++; \ |
e1235983 CL |
1942 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
1943 | } \ | |
39a53e0c JK |
1944 | } while (0) |
1945 | ||
1946 | #define stat_inc_tot_blk_count(si, blks) \ | |
1947 | (si->tot_blks += (blks)) | |
1948 | ||
e1235983 | 1949 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 1950 | do { \ |
963d4f7d | 1951 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
1952 | stat_inc_tot_blk_count(si, blks); \ |
1953 | si->data_blks += (blks); \ | |
e1235983 | 1954 | si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
1955 | } while (0) |
1956 | ||
e1235983 | 1957 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 1958 | do { \ |
963d4f7d | 1959 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
1960 | stat_inc_tot_blk_count(si, blks); \ |
1961 | si->node_blks += (blks); \ | |
e1235983 | 1962 | si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
1963 | } while (0) |
1964 | ||
1965 | int f2fs_build_stats(struct f2fs_sb_info *); | |
1966 | void f2fs_destroy_stats(struct f2fs_sb_info *); | |
6e6093a8 | 1967 | void __init f2fs_create_root_stats(void); |
4589d25d | 1968 | void f2fs_destroy_root_stats(void); |
39a53e0c | 1969 | #else |
942e0be6 | 1970 | #define stat_inc_cp_count(si) |
39a53e0c | 1971 | #define stat_inc_call_count(si) |
dcdfff65 JK |
1972 | #define stat_inc_bggc_count(si) |
1973 | #define stat_inc_dirty_dir(sbi) | |
1974 | #define stat_dec_dirty_dir(sbi) | |
1975 | #define stat_inc_total_hit(sb) | |
029e13cc | 1976 | #define stat_inc_rbtree_node_hit(sb) |
91c481ff CY |
1977 | #define stat_inc_largest_node_hit(sbi) |
1978 | #define stat_inc_cached_node_hit(sbi) | |
d5e8f6c9 CY |
1979 | #define stat_inc_inline_xattr(inode) |
1980 | #define stat_dec_inline_xattr(inode) | |
0dbdc2ae JK |
1981 | #define stat_inc_inline_inode(inode) |
1982 | #define stat_dec_inline_inode(inode) | |
3289c061 JK |
1983 | #define stat_inc_inline_dir(inode) |
1984 | #define stat_dec_inline_dir(inode) | |
dcdfff65 JK |
1985 | #define stat_inc_seg_type(sbi, curseg) |
1986 | #define stat_inc_block_count(sbi, curseg) | |
b9a2c252 | 1987 | #define stat_inc_inplace_blocks(sbi) |
e1235983 | 1988 | #define stat_inc_seg_count(sbi, type, gc_type) |
39a53e0c | 1989 | #define stat_inc_tot_blk_count(si, blks) |
e1235983 CL |
1990 | #define stat_inc_data_blk_count(sbi, blks, gc_type) |
1991 | #define stat_inc_node_blk_count(sbi, blks, gc_type) | |
39a53e0c JK |
1992 | |
1993 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
1994 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
6e6093a8 | 1995 | static inline void __init f2fs_create_root_stats(void) { } |
4589d25d | 1996 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
1997 | #endif |
1998 | ||
1999 | extern const struct file_operations f2fs_dir_operations; | |
2000 | extern const struct file_operations f2fs_file_operations; | |
2001 | extern const struct inode_operations f2fs_file_inode_operations; | |
2002 | extern const struct address_space_operations f2fs_dblock_aops; | |
2003 | extern const struct address_space_operations f2fs_node_aops; | |
2004 | extern const struct address_space_operations f2fs_meta_aops; | |
2005 | extern const struct inode_operations f2fs_dir_inode_operations; | |
2006 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
cbaf042a | 2007 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
39a53e0c | 2008 | extern const struct inode_operations f2fs_special_inode_operations; |
29e7043f | 2009 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 2010 | |
e18c65b2 HL |
2011 | /* |
2012 | * inline.c | |
2013 | */ | |
01b960e9 JK |
2014 | bool f2fs_may_inline_data(struct inode *); |
2015 | bool f2fs_may_inline_dentry(struct inode *); | |
b3d208f9 | 2016 | void read_inline_data(struct page *, struct page *); |
0bfcfcca | 2017 | bool truncate_inline_inode(struct page *, u64); |
e18c65b2 | 2018 | int f2fs_read_inline_data(struct inode *, struct page *); |
b3d208f9 JK |
2019 | int f2fs_convert_inline_page(struct dnode_of_data *, struct page *); |
2020 | int f2fs_convert_inline_inode(struct inode *); | |
2021 | int f2fs_write_inline_data(struct inode *, struct page *); | |
0342fd30 | 2022 | bool recover_inline_data(struct inode *, struct page *); |
6e22c691 JK |
2023 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *, |
2024 | struct f2fs_filename *, struct page **); | |
201a05be CY |
2025 | struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *, struct page **); |
2026 | int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); | |
510022a8 JK |
2027 | int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *, |
2028 | nid_t, umode_t); | |
201a05be CY |
2029 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, |
2030 | struct inode *, struct inode *); | |
2031 | bool f2fs_empty_inline_dir(struct inode *); | |
d8c6822a JK |
2032 | int f2fs_read_inline_dir(struct file *, struct dir_context *, |
2033 | struct f2fs_str *); | |
cde4de12 | 2034 | |
2658e50d JK |
2035 | /* |
2036 | * shrinker.c | |
2037 | */ | |
2038 | unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *); | |
2039 | unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *); | |
2040 | void f2fs_join_shrinker(struct f2fs_sb_info *); | |
2041 | void f2fs_leave_shrinker(struct f2fs_sb_info *); | |
2042 | ||
a28ef1f5 CY |
2043 | /* |
2044 | * extent_cache.c | |
2045 | */ | |
2046 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); | |
2047 | void f2fs_drop_largest_extent(struct inode *, pgoff_t); | |
2048 | void f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); | |
2049 | unsigned int f2fs_destroy_extent_node(struct inode *); | |
2050 | void f2fs_destroy_extent_tree(struct inode *); | |
2051 | bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *); | |
2052 | void f2fs_update_extent_cache(struct dnode_of_data *); | |
19b2c30d CY |
2053 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
2054 | pgoff_t, block_t, unsigned int); | |
a28ef1f5 CY |
2055 | void init_extent_cache_info(struct f2fs_sb_info *); |
2056 | int __init create_extent_cache(void); | |
2057 | void destroy_extent_cache(void); | |
2058 | ||
cde4de12 JK |
2059 | /* |
2060 | * crypto support | |
2061 | */ | |
2062 | static inline int f2fs_encrypted_inode(struct inode *inode) | |
2063 | { | |
2064 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2065 | return file_is_encrypt(inode); | |
2066 | #else | |
2067 | return 0; | |
2068 | #endif | |
2069 | } | |
2070 | ||
2071 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
2072 | { | |
2073 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2074 | file_set_encrypt(inode); | |
2075 | #endif | |
2076 | } | |
2077 | ||
2078 | static inline bool f2fs_bio_encrypted(struct bio *bio) | |
2079 | { | |
2080 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2081 | return unlikely(bio->bi_private != NULL); | |
2082 | #else | |
2083 | return false; | |
2084 | #endif | |
2085 | } | |
2086 | ||
2087 | static inline int f2fs_sb_has_crypto(struct super_block *sb) | |
2088 | { | |
2089 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2090 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); | |
2091 | #else | |
2092 | return 0; | |
2093 | #endif | |
2094 | } | |
f424f664 | 2095 | |
fcc85a4d JK |
2096 | static inline bool f2fs_may_encrypt(struct inode *inode) |
2097 | { | |
2098 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2099 | mode_t mode = inode->i_mode; | |
2100 | ||
2101 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
2102 | #else | |
2103 | return 0; | |
2104 | #endif | |
2105 | } | |
2106 | ||
f424f664 JK |
2107 | /* crypto_policy.c */ |
2108 | int f2fs_is_child_context_consistent_with_parent(struct inode *, | |
2109 | struct inode *); | |
2110 | int f2fs_inherit_context(struct inode *, struct inode *, struct page *); | |
2111 | int f2fs_process_policy(const struct f2fs_encryption_policy *, struct inode *); | |
2112 | int f2fs_get_policy(struct inode *, struct f2fs_encryption_policy *); | |
57e5055b JK |
2113 | |
2114 | /* crypt.c */ | |
8bacf6de | 2115 | extern struct kmem_cache *f2fs_crypt_info_cachep; |
57e5055b JK |
2116 | bool f2fs_valid_contents_enc_mode(uint32_t); |
2117 | uint32_t f2fs_validate_encryption_key_size(uint32_t, uint32_t); | |
2118 | struct f2fs_crypto_ctx *f2fs_get_crypto_ctx(struct inode *); | |
2119 | void f2fs_release_crypto_ctx(struct f2fs_crypto_ctx *); | |
2120 | struct page *f2fs_encrypt(struct inode *, struct page *); | |
2121 | int f2fs_decrypt(struct f2fs_crypto_ctx *, struct page *); | |
2122 | int f2fs_decrypt_one(struct inode *, struct page *); | |
2123 | void f2fs_end_io_crypto_work(struct f2fs_crypto_ctx *, struct bio *); | |
2124 | ||
0adda907 | 2125 | /* crypto_key.c */ |
26bf3dc7 | 2126 | void f2fs_free_encryption_info(struct inode *, struct f2fs_crypt_info *); |
0adda907 JK |
2127 | int _f2fs_get_encryption_info(struct inode *inode); |
2128 | ||
6b3bd08f JK |
2129 | /* crypto_fname.c */ |
2130 | bool f2fs_valid_filenames_enc_mode(uint32_t); | |
2131 | u32 f2fs_fname_crypto_round_up(u32, u32); | |
2132 | int f2fs_fname_crypto_alloc_buffer(struct inode *, u32, struct f2fs_str *); | |
2133 | int f2fs_fname_disk_to_usr(struct inode *, f2fs_hash_t *, | |
2134 | const struct f2fs_str *, struct f2fs_str *); | |
2135 | int f2fs_fname_usr_to_disk(struct inode *, const struct qstr *, | |
2136 | struct f2fs_str *); | |
2137 | ||
57e5055b JK |
2138 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
2139 | void f2fs_restore_and_release_control_page(struct page **); | |
2140 | void f2fs_restore_control_page(struct page *); | |
2141 | ||
cfc4d971 JK |
2142 | int __init f2fs_init_crypto(void); |
2143 | int f2fs_crypto_initialize(void); | |
57e5055b | 2144 | void f2fs_exit_crypto(void); |
0adda907 JK |
2145 | |
2146 | int f2fs_has_encryption_key(struct inode *); | |
2147 | ||
2148 | static inline int f2fs_get_encryption_info(struct inode *inode) | |
2149 | { | |
2150 | struct f2fs_crypt_info *ci = F2FS_I(inode)->i_crypt_info; | |
2151 | ||
2152 | if (!ci || | |
2153 | (ci->ci_keyring_key && | |
2154 | (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) | | |
2155 | (1 << KEY_FLAG_REVOKED) | | |
2156 | (1 << KEY_FLAG_DEAD))))) | |
2157 | return _f2fs_get_encryption_info(inode); | |
2158 | return 0; | |
2159 | } | |
6b3bd08f | 2160 | |
6b3bd08f JK |
2161 | void f2fs_fname_crypto_free_buffer(struct f2fs_str *); |
2162 | int f2fs_fname_setup_filename(struct inode *, const struct qstr *, | |
2163 | int lookup, struct f2fs_filename *); | |
2164 | void f2fs_fname_free_filename(struct f2fs_filename *); | |
57e5055b JK |
2165 | #else |
2166 | static inline void f2fs_restore_and_release_control_page(struct page **p) { } | |
2167 | static inline void f2fs_restore_control_page(struct page *p) { } | |
2168 | ||
cfc4d971 | 2169 | static inline int __init f2fs_init_crypto(void) { return 0; } |
57e5055b | 2170 | static inline void f2fs_exit_crypto(void) { } |
0adda907 JK |
2171 | |
2172 | static inline int f2fs_has_encryption_key(struct inode *i) { return 0; } | |
2173 | static inline int f2fs_get_encryption_info(struct inode *i) { return 0; } | |
6b3bd08f JK |
2174 | static inline void f2fs_fname_crypto_free_buffer(struct f2fs_str *p) { } |
2175 | ||
2176 | static inline int f2fs_fname_setup_filename(struct inode *dir, | |
2177 | const struct qstr *iname, | |
2178 | int lookup, struct f2fs_filename *fname) | |
2179 | { | |
2180 | memset(fname, 0, sizeof(struct f2fs_filename)); | |
2181 | fname->usr_fname = iname; | |
2182 | fname->disk_name.name = (unsigned char *)iname->name; | |
2183 | fname->disk_name.len = iname->len; | |
2184 | return 0; | |
2185 | } | |
2186 | ||
2187 | static inline void f2fs_fname_free_filename(struct f2fs_filename *fname) { } | |
57e5055b | 2188 | #endif |
39a53e0c | 2189 | #endif |