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0a8165d7 | 1 | /* |
39a53e0c JK |
2 | * fs/f2fs/f2fs.h |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #ifndef _LINUX_F2FS_H | |
12 | #define _LINUX_F2FS_H | |
13 | ||
14 | #include <linux/types.h> | |
15 | #include <linux/page-flags.h> | |
16 | #include <linux/buffer_head.h> | |
39a53e0c JK |
17 | #include <linux/slab.h> |
18 | #include <linux/crc32.h> | |
19 | #include <linux/magic.h> | |
c2d715d1 | 20 | #include <linux/kobject.h> |
7bd59381 | 21 | #include <linux/sched.h> |
39307a8e | 22 | #include <linux/vmalloc.h> |
740432f8 | 23 | #include <linux/bio.h> |
d0239e1b | 24 | #include <linux/blkdev.h> |
0b81d077 | 25 | #include <linux/fscrypto.h> |
43b6573b | 26 | #include <crypto/hash.h> |
39a53e0c | 27 | |
5d56b671 | 28 | #ifdef CONFIG_F2FS_CHECK_FS |
9850cf4a | 29 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) |
5d56b671 | 30 | #else |
9850cf4a JK |
31 | #define f2fs_bug_on(sbi, condition) \ |
32 | do { \ | |
33 | if (unlikely(condition)) { \ | |
34 | WARN_ON(1); \ | |
caf0047e | 35 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ |
9850cf4a JK |
36 | } \ |
37 | } while (0) | |
5d56b671 JK |
38 | #endif |
39 | ||
2c63fead JK |
40 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
41 | enum { | |
42 | FAULT_KMALLOC, | |
c41f3cc3 | 43 | FAULT_PAGE_ALLOC, |
cb78942b JK |
44 | FAULT_ALLOC_NID, |
45 | FAULT_ORPHAN, | |
46 | FAULT_BLOCK, | |
47 | FAULT_DIR_DEPTH, | |
53aa6bbf | 48 | FAULT_EVICT_INODE, |
8b038c70 | 49 | FAULT_IO, |
2c63fead JK |
50 | FAULT_MAX, |
51 | }; | |
52 | ||
08796897 SY |
53 | struct f2fs_fault_info { |
54 | atomic_t inject_ops; | |
55 | unsigned int inject_rate; | |
56 | unsigned int inject_type; | |
57 | }; | |
58 | ||
2c63fead | 59 | extern char *fault_name[FAULT_MAX]; |
1ecc0c5c | 60 | #define IS_FAULT_SET(fi, type) (fi->inject_type & (1 << (type))) |
2c63fead JK |
61 | #endif |
62 | ||
39a53e0c JK |
63 | /* |
64 | * For mount options | |
65 | */ | |
66 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
67 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
68 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
69 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
70 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
71 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
72 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 73 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 74 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
34d67deb CY |
75 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
76 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
77 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
d5053a34 | 78 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
89672159 | 79 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
6aefd93b | 80 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
343f40f0 | 81 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 |
73faec4d | 82 | #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 |
36abef4e JK |
83 | #define F2FS_MOUNT_ADAPTIVE 0x00020000 |
84 | #define F2FS_MOUNT_LFS 0x00040000 | |
39a53e0c JK |
85 | |
86 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) | |
87 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) | |
88 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) | |
89 | ||
90 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
91 | typecheck(unsigned long long, b) && \ | |
92 | ((long long)((a) - (b)) > 0)) | |
93 | ||
a9841c4d JK |
94 | typedef u32 block_t; /* |
95 | * should not change u32, since it is the on-disk block | |
96 | * address format, __le32. | |
97 | */ | |
39a53e0c JK |
98 | typedef u32 nid_t; |
99 | ||
100 | struct f2fs_mount_info { | |
101 | unsigned int opt; | |
102 | }; | |
103 | ||
cde4de12 | 104 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
52763a4b | 105 | #define F2FS_FEATURE_HMSMR 0x0002 |
cde4de12 | 106 | |
76f105a2 JK |
107 | #define F2FS_HAS_FEATURE(sb, mask) \ |
108 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) | |
109 | #define F2FS_SET_FEATURE(sb, mask) \ | |
110 | F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask) | |
111 | #define F2FS_CLEAR_FEATURE(sb, mask) \ | |
112 | F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) | |
113 | ||
39a53e0c JK |
114 | /* |
115 | * For checkpoint manager | |
116 | */ | |
117 | enum { | |
118 | NAT_BITMAP, | |
119 | SIT_BITMAP | |
120 | }; | |
121 | ||
75ab4cb8 JK |
122 | enum { |
123 | CP_UMOUNT, | |
119ee914 | 124 | CP_FASTBOOT, |
75ab4cb8 | 125 | CP_SYNC, |
10027551 | 126 | CP_RECOVERY, |
4b2fecc8 | 127 | CP_DISCARD, |
75ab4cb8 JK |
128 | }; |
129 | ||
2d9e9c32 | 130 | #define DEF_BATCHED_TRIM_SECTIONS 2 |
bba681cb JK |
131 | #define BATCHED_TRIM_SEGMENTS(sbi) \ |
132 | (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) | |
a66cdd98 JK |
133 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
134 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
60b99b48 | 135 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
dcf25fe8 | 136 | #define DEF_IDLE_INTERVAL 5 /* 5 secs */ |
bba681cb | 137 | |
75ab4cb8 JK |
138 | struct cp_control { |
139 | int reason; | |
4b2fecc8 JK |
140 | __u64 trim_start; |
141 | __u64 trim_end; | |
142 | __u64 trim_minlen; | |
143 | __u64 trimmed; | |
75ab4cb8 JK |
144 | }; |
145 | ||
662befda | 146 | /* |
81c1a0f1 | 147 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
148 | */ |
149 | enum { | |
150 | META_CP, | |
151 | META_NAT, | |
81c1a0f1 | 152 | META_SIT, |
4c521f49 JK |
153 | META_SSA, |
154 | META_POR, | |
662befda CY |
155 | }; |
156 | ||
6451e041 JK |
157 | /* for the list of ino */ |
158 | enum { | |
159 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
160 | APPEND_INO, /* for append ino list */ |
161 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
162 | MAX_INO_ENTRY, /* max. list */ |
163 | }; | |
164 | ||
165 | struct ino_entry { | |
39a53e0c JK |
166 | struct list_head list; /* list head */ |
167 | nid_t ino; /* inode number */ | |
168 | }; | |
169 | ||
2710fd7e | 170 | /* for the list of inodes to be GCed */ |
06292073 | 171 | struct inode_entry { |
39a53e0c JK |
172 | struct list_head list; /* list head */ |
173 | struct inode *inode; /* vfs inode pointer */ | |
174 | }; | |
175 | ||
7fd9e544 JK |
176 | /* for the list of blockaddresses to be discarded */ |
177 | struct discard_entry { | |
178 | struct list_head list; /* list head */ | |
179 | block_t blkaddr; /* block address to be discarded */ | |
180 | int len; /* # of consecutive blocks of the discard */ | |
181 | }; | |
182 | ||
275b66b0 CY |
183 | struct bio_entry { |
184 | struct list_head list; | |
185 | struct bio *bio; | |
186 | struct completion event; | |
187 | int error; | |
188 | }; | |
189 | ||
39a53e0c JK |
190 | /* for the list of fsync inodes, used only during recovery */ |
191 | struct fsync_inode_entry { | |
192 | struct list_head list; /* list head */ | |
193 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
194 | block_t blkaddr; /* block address locating the last fsync */ |
195 | block_t last_dentry; /* block address locating the last dentry */ | |
39a53e0c JK |
196 | }; |
197 | ||
dfc08a12 CY |
198 | #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats)) |
199 | #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits)) | |
39a53e0c | 200 | |
dfc08a12 CY |
201 | #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne) |
202 | #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid) | |
203 | #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se) | |
204 | #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno) | |
39a53e0c | 205 | |
dfc08a12 CY |
206 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
207 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) | |
309cc2b6 | 208 | |
dfc08a12 | 209 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 210 | { |
dfc08a12 CY |
211 | int before = nats_in_cursum(journal); |
212 | journal->n_nats = cpu_to_le16(before + i); | |
39a53e0c JK |
213 | return before; |
214 | } | |
215 | ||
dfc08a12 | 216 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 217 | { |
dfc08a12 CY |
218 | int before = sits_in_cursum(journal); |
219 | journal->n_sits = cpu_to_le16(before + i); | |
39a53e0c JK |
220 | return before; |
221 | } | |
222 | ||
dfc08a12 CY |
223 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
224 | int size, int type) | |
184a5cd2 CY |
225 | { |
226 | if (type == NAT_JOURNAL) | |
dfc08a12 CY |
227 | return size <= MAX_NAT_JENTRIES(journal); |
228 | return size <= MAX_SIT_JENTRIES(journal); | |
184a5cd2 CY |
229 | } |
230 | ||
e9750824 NJ |
231 | /* |
232 | * ioctl commands | |
233 | */ | |
88b88a66 JK |
234 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
235 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 236 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
237 | |
238 | #define F2FS_IOCTL_MAGIC 0xf5 | |
239 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
240 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 241 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
242 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
243 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
c1c1b583 | 244 | #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6) |
456b88e4 | 245 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
d323d005 | 246 | #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8) |
4dd6f977 JK |
247 | #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ |
248 | struct f2fs_move_range) | |
e9750824 | 249 | |
0b81d077 JK |
250 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
251 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY | |
252 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT | |
f424f664 | 253 | |
1abff93d JK |
254 | /* |
255 | * should be same as XFS_IOC_GOINGDOWN. | |
256 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
257 | */ | |
258 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
259 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
260 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
261 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
c912a829 | 262 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
1abff93d | 263 | |
e9750824 NJ |
264 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
265 | /* | |
266 | * ioctl commands in 32 bit emulation | |
267 | */ | |
04ef4b62 CY |
268 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
269 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
270 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION | |
e9750824 NJ |
271 | #endif |
272 | ||
d323d005 CY |
273 | struct f2fs_defragment { |
274 | u64 start; | |
275 | u64 len; | |
276 | }; | |
277 | ||
4dd6f977 JK |
278 | struct f2fs_move_range { |
279 | u32 dst_fd; /* destination fd */ | |
280 | u64 pos_in; /* start position in src_fd */ | |
281 | u64 pos_out; /* start position in dst_fd */ | |
282 | u64 len; /* size to move */ | |
283 | }; | |
284 | ||
39a53e0c JK |
285 | /* |
286 | * For INODE and NODE manager | |
287 | */ | |
7b3cd7d6 JK |
288 | /* for directory operations */ |
289 | struct f2fs_dentry_ptr { | |
d8c6822a | 290 | struct inode *inode; |
7b3cd7d6 JK |
291 | const void *bitmap; |
292 | struct f2fs_dir_entry *dentry; | |
293 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
294 | int max; | |
295 | }; | |
296 | ||
d8c6822a JK |
297 | static inline void make_dentry_ptr(struct inode *inode, |
298 | struct f2fs_dentry_ptr *d, void *src, int type) | |
7b3cd7d6 | 299 | { |
d8c6822a JK |
300 | d->inode = inode; |
301 | ||
7b3cd7d6 JK |
302 | if (type == 1) { |
303 | struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src; | |
304 | d->max = NR_DENTRY_IN_BLOCK; | |
305 | d->bitmap = &t->dentry_bitmap; | |
306 | d->dentry = t->dentry; | |
307 | d->filename = t->filename; | |
308 | } else { | |
309 | struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src; | |
310 | d->max = NR_INLINE_DENTRY; | |
311 | d->bitmap = &t->dentry_bitmap; | |
312 | d->dentry = t->dentry; | |
313 | d->filename = t->filename; | |
314 | } | |
315 | } | |
316 | ||
dbe6a5ff JK |
317 | /* |
318 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
319 | * as its node offset to distinguish from index node blocks. | |
320 | * But some bits are used to mark the node block. | |
321 | */ | |
322 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
323 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
324 | enum { |
325 | ALLOC_NODE, /* allocate a new node page if needed */ | |
326 | LOOKUP_NODE, /* look up a node without readahead */ | |
327 | LOOKUP_NODE_RA, /* | |
328 | * look up a node with readahead called | |
4f4124d0 | 329 | * by get_data_block. |
39a53e0c | 330 | */ |
266e97a8 JK |
331 | }; |
332 | ||
a6db67f0 | 333 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
39a53e0c | 334 | |
817202d9 CY |
335 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
336 | ||
13054c54 CY |
337 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
338 | #define EXT_TREE_VEC_SIZE 64 | |
339 | ||
39a53e0c | 340 | /* for in-memory extent cache entry */ |
13054c54 CY |
341 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
342 | ||
343 | /* number of extent info in extent cache we try to shrink */ | |
344 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 345 | |
39a53e0c | 346 | struct extent_info { |
13054c54 CY |
347 | unsigned int fofs; /* start offset in a file */ |
348 | u32 blk; /* start block address of the extent */ | |
349 | unsigned int len; /* length of the extent */ | |
350 | }; | |
351 | ||
352 | struct extent_node { | |
353 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
354 | struct list_head list; /* node in global extent list of sbi */ | |
355 | struct extent_info ei; /* extent info */ | |
201ef5e0 | 356 | struct extent_tree *et; /* extent tree pointer */ |
13054c54 CY |
357 | }; |
358 | ||
359 | struct extent_tree { | |
360 | nid_t ino; /* inode number */ | |
361 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 362 | struct extent_node *cached_en; /* recently accessed extent node */ |
3e72f721 | 363 | struct extent_info largest; /* largested extent info */ |
137d09f0 | 364 | struct list_head list; /* to be used by sbi->zombie_list */ |
13054c54 | 365 | rwlock_t lock; /* protect extent info rb-tree */ |
68e35385 | 366 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
39a53e0c JK |
367 | }; |
368 | ||
003a3e1d JK |
369 | /* |
370 | * This structure is taken from ext4_map_blocks. | |
371 | * | |
372 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
373 | */ | |
374 | #define F2FS_MAP_NEW (1 << BH_New) | |
375 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
7f63eb77 JK |
376 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
377 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
378 | F2FS_MAP_UNWRITTEN) | |
003a3e1d JK |
379 | |
380 | struct f2fs_map_blocks { | |
381 | block_t m_pblk; | |
382 | block_t m_lblk; | |
383 | unsigned int m_len; | |
384 | unsigned int m_flags; | |
da85985c | 385 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
003a3e1d JK |
386 | }; |
387 | ||
e2b4e2bc CY |
388 | /* for flag in get_data_block */ |
389 | #define F2FS_GET_BLOCK_READ 0 | |
390 | #define F2FS_GET_BLOCK_DIO 1 | |
391 | #define F2FS_GET_BLOCK_FIEMAP 2 | |
392 | #define F2FS_GET_BLOCK_BMAP 3 | |
b439b103 | 393 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
24b84912 | 394 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
e2b4e2bc | 395 | |
39a53e0c JK |
396 | /* |
397 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
398 | */ | |
399 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 400 | #define FADVISE_LOST_PINO_BIT 0x02 |
cde4de12 | 401 | #define FADVISE_ENCRYPT_BIT 0x04 |
e7d55452 | 402 | #define FADVISE_ENC_NAME_BIT 0x08 |
39a53e0c | 403 | |
b5492af7 JK |
404 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
405 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
406 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
407 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
408 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
409 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
cde4de12 JK |
410 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
411 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
412 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
e7d55452 JK |
413 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
414 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
cde4de12 | 415 | |
ab9fa662 JK |
416 | #define DEF_DIR_LEVEL 0 |
417 | ||
39a53e0c JK |
418 | struct f2fs_inode_info { |
419 | struct inode vfs_inode; /* serve a vfs inode */ | |
420 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
421 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 422 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 423 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 424 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
425 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
426 | ||
427 | /* Use below internally in f2fs*/ | |
428 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 429 | struct rw_semaphore i_sem; /* protect fi info */ |
1beba1b3 | 430 | struct percpu_counter dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
431 | f2fs_hash_t chash; /* hash value of given file name */ |
432 | unsigned int clevel; /* maximum level of given file name */ | |
433 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
e518ff81 | 434 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
26de9b11 | 435 | loff_t last_disk_size; /* lastly written file size */ |
88b88a66 | 436 | |
0f18b462 JK |
437 | struct list_head dirty_list; /* dirty list for dirs and files */ |
438 | struct list_head gdirty_list; /* linked in global dirty list */ | |
88b88a66 JK |
439 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
440 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
3e72f721 | 441 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
82e0a5aa | 442 | struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */ |
39a53e0c JK |
443 | }; |
444 | ||
445 | static inline void get_extent_info(struct extent_info *ext, | |
bd933d4f | 446 | struct f2fs_extent *i_ext) |
39a53e0c | 447 | { |
bd933d4f CY |
448 | ext->fofs = le32_to_cpu(i_ext->fofs); |
449 | ext->blk = le32_to_cpu(i_ext->blk); | |
450 | ext->len = le32_to_cpu(i_ext->len); | |
39a53e0c JK |
451 | } |
452 | ||
453 | static inline void set_raw_extent(struct extent_info *ext, | |
454 | struct f2fs_extent *i_ext) | |
455 | { | |
39a53e0c | 456 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 457 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 458 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
459 | } |
460 | ||
429511cd CY |
461 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
462 | u32 blk, unsigned int len) | |
463 | { | |
464 | ei->fofs = fofs; | |
465 | ei->blk = blk; | |
466 | ei->len = len; | |
467 | } | |
468 | ||
0bdee482 CY |
469 | static inline bool __is_extent_same(struct extent_info *ei1, |
470 | struct extent_info *ei2) | |
471 | { | |
472 | return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && | |
473 | ei1->len == ei2->len); | |
474 | } | |
475 | ||
429511cd CY |
476 | static inline bool __is_extent_mergeable(struct extent_info *back, |
477 | struct extent_info *front) | |
478 | { | |
479 | return (back->fofs + back->len == front->fofs && | |
480 | back->blk + back->len == front->blk); | |
481 | } | |
482 | ||
483 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
484 | struct extent_info *back) | |
485 | { | |
486 | return __is_extent_mergeable(back, cur); | |
487 | } | |
488 | ||
489 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
490 | struct extent_info *front) | |
491 | { | |
492 | return __is_extent_mergeable(cur, front); | |
493 | } | |
494 | ||
b56ab837 | 495 | extern void f2fs_mark_inode_dirty_sync(struct inode *); |
205b9822 JK |
496 | static inline void __try_update_largest_extent(struct inode *inode, |
497 | struct extent_tree *et, struct extent_node *en) | |
4abd3f5a | 498 | { |
205b9822 | 499 | if (en->ei.len > et->largest.len) { |
4abd3f5a | 500 | et->largest = en->ei; |
b56ab837 | 501 | f2fs_mark_inode_dirty_sync(inode); |
205b9822 | 502 | } |
4abd3f5a CY |
503 | } |
504 | ||
39a53e0c JK |
505 | struct f2fs_nm_info { |
506 | block_t nat_blkaddr; /* base disk address of NAT */ | |
507 | nid_t max_nid; /* maximum possible node ids */ | |
7ee0eeab | 508 | nid_t available_nids; /* maximum available node ids */ |
39a53e0c | 509 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 510 | unsigned int ram_thresh; /* control the memory footprint */ |
ea1a29a0 | 511 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
2304cb0c | 512 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
39a53e0c JK |
513 | |
514 | /* NAT cache management */ | |
515 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 516 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
b873b798 | 517 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 518 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 519 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 520 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
39a53e0c JK |
521 | |
522 | /* free node ids management */ | |
8a7ed66a | 523 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
39a53e0c JK |
524 | struct list_head free_nid_list; /* a list for free nids */ |
525 | spinlock_t free_nid_list_lock; /* protect free nid list */ | |
526 | unsigned int fcnt; /* the number of free node id */ | |
527 | struct mutex build_lock; /* lock for build free nids */ | |
528 | ||
529 | /* for checkpoint */ | |
530 | char *nat_bitmap; /* NAT bitmap pointer */ | |
531 | int bitmap_size; /* bitmap size */ | |
532 | }; | |
533 | ||
534 | /* | |
535 | * this structure is used as one of function parameters. | |
536 | * all the information are dedicated to a given direct node block determined | |
537 | * by the data offset in a file. | |
538 | */ | |
539 | struct dnode_of_data { | |
540 | struct inode *inode; /* vfs inode pointer */ | |
541 | struct page *inode_page; /* its inode page, NULL is possible */ | |
542 | struct page *node_page; /* cached direct node page */ | |
543 | nid_t nid; /* node id of the direct node block */ | |
544 | unsigned int ofs_in_node; /* data offset in the node page */ | |
545 | bool inode_page_locked; /* inode page is locked or not */ | |
93bae099 | 546 | bool node_changed; /* is node block changed */ |
3cf45747 CY |
547 | char cur_level; /* level of hole node page */ |
548 | char max_level; /* level of current page located */ | |
39a53e0c JK |
549 | block_t data_blkaddr; /* block address of the node block */ |
550 | }; | |
551 | ||
552 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
553 | struct page *ipage, struct page *npage, nid_t nid) | |
554 | { | |
d66d1f76 | 555 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
556 | dn->inode = inode; |
557 | dn->inode_page = ipage; | |
558 | dn->node_page = npage; | |
559 | dn->nid = nid; | |
39a53e0c JK |
560 | } |
561 | ||
562 | /* | |
563 | * For SIT manager | |
564 | * | |
565 | * By default, there are 6 active log areas across the whole main area. | |
566 | * When considering hot and cold data separation to reduce cleaning overhead, | |
567 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
568 | * respectively. | |
569 | * In the current design, you should not change the numbers intentionally. | |
570 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
571 | * logs individually according to the underlying devices. (default: 6) | |
572 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
573 | * data and 8 for node logs. | |
574 | */ | |
575 | #define NR_CURSEG_DATA_TYPE (3) | |
576 | #define NR_CURSEG_NODE_TYPE (3) | |
577 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
578 | ||
579 | enum { | |
580 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
581 | CURSEG_WARM_DATA, /* data blocks */ | |
582 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
583 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
584 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
585 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 JK |
586 | NO_CHECK_TYPE, |
587 | CURSEG_DIRECT_IO, /* to use for the direct IO path */ | |
39a53e0c JK |
588 | }; |
589 | ||
6b4afdd7 | 590 | struct flush_cmd { |
6b4afdd7 | 591 | struct completion wait; |
721bd4d5 | 592 | struct llist_node llnode; |
6b4afdd7 JK |
593 | int ret; |
594 | }; | |
595 | ||
a688b9d9 GZ |
596 | struct flush_cmd_control { |
597 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
598 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
0a87f664 | 599 | atomic_t submit_flush; /* # of issued flushes */ |
721bd4d5 GZ |
600 | struct llist_head issue_list; /* list for command issue */ |
601 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
602 | }; |
603 | ||
39a53e0c JK |
604 | struct f2fs_sm_info { |
605 | struct sit_info *sit_info; /* whole segment information */ | |
606 | struct free_segmap_info *free_info; /* free segment information */ | |
607 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
608 | struct curseg_info *curseg_array; /* active segment information */ | |
609 | ||
39a53e0c JK |
610 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
611 | block_t main_blkaddr; /* start block address of main area */ | |
612 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
613 | ||
614 | unsigned int segment_count; /* total # of segments */ | |
615 | unsigned int main_segments; /* # of segments in main area */ | |
616 | unsigned int reserved_segments; /* # of reserved segments */ | |
617 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
618 | |
619 | /* a threshold to reclaim prefree segments */ | |
620 | unsigned int rec_prefree_segments; | |
7fd9e544 JK |
621 | |
622 | /* for small discard management */ | |
623 | struct list_head discard_list; /* 4KB discard list */ | |
275b66b0 | 624 | struct list_head wait_list; /* linked with issued discard bio */ |
7fd9e544 JK |
625 | int nr_discards; /* # of discards in the list */ |
626 | int max_discards; /* max. discards to be issued */ | |
216fbd64 | 627 | |
bba681cb JK |
628 | /* for batched trimming */ |
629 | unsigned int trim_sections; /* # of sections to trim */ | |
630 | ||
184a5cd2 CY |
631 | struct list_head sit_entry_set; /* sit entry set list */ |
632 | ||
216fbd64 JK |
633 | unsigned int ipu_policy; /* in-place-update policy */ |
634 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 635 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
6b4afdd7 JK |
636 | |
637 | /* for flush command control */ | |
a688b9d9 GZ |
638 | struct flush_cmd_control *cmd_control_info; |
639 | ||
39a53e0c JK |
640 | }; |
641 | ||
39a53e0c JK |
642 | /* |
643 | * For superblock | |
644 | */ | |
645 | /* | |
646 | * COUNT_TYPE for monitoring | |
647 | * | |
648 | * f2fs monitors the number of several block types such as on-writeback, | |
649 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
650 | */ | |
651 | enum count_type { | |
39a53e0c | 652 | F2FS_DIRTY_DENTS, |
c227f912 | 653 | F2FS_DIRTY_DATA, |
39a53e0c JK |
654 | F2FS_DIRTY_NODES, |
655 | F2FS_DIRTY_META, | |
8dcf2ff7 | 656 | F2FS_INMEM_PAGES, |
0f18b462 | 657 | F2FS_DIRTY_IMETA, |
39a53e0c JK |
658 | NR_COUNT_TYPE, |
659 | }; | |
660 | ||
39a53e0c | 661 | /* |
e1c42045 | 662 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
663 | * The available types are: |
664 | * DATA User data pages. It operates as async mode. | |
665 | * NODE Node pages. It operates as async mode. | |
666 | * META FS metadata pages such as SIT, NAT, CP. | |
667 | * NR_PAGE_TYPE The number of page types. | |
668 | * META_FLUSH Make sure the previous pages are written | |
669 | * with waiting the bio's completion | |
670 | * ... Only can be used with META. | |
671 | */ | |
7d5e5109 | 672 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
673 | enum page_type { |
674 | DATA, | |
675 | NODE, | |
676 | META, | |
677 | NR_PAGE_TYPE, | |
678 | META_FLUSH, | |
8ce67cb0 JK |
679 | INMEM, /* the below types are used by tracepoints only. */ |
680 | INMEM_DROP, | |
28bc106b | 681 | INMEM_REVOKE, |
8ce67cb0 JK |
682 | IPU, |
683 | OPU, | |
39a53e0c JK |
684 | }; |
685 | ||
458e6197 | 686 | struct f2fs_io_info { |
05ca3632 | 687 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 | 688 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
04d328de MC |
689 | int op; /* contains REQ_OP_ */ |
690 | int op_flags; /* rq_flag_bits */ | |
7a9d7548 | 691 | block_t new_blkaddr; /* new block address to be written */ |
28bc106b | 692 | block_t old_blkaddr; /* old block address before Cow */ |
05ca3632 | 693 | struct page *page; /* page to be written */ |
4375a336 | 694 | struct page *encrypted_page; /* encrypted page */ |
458e6197 JK |
695 | }; |
696 | ||
04d328de | 697 | #define is_read_io(rw) (rw == READ) |
1ff7bd3b | 698 | struct f2fs_bio_info { |
458e6197 | 699 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
700 | struct bio *bio; /* bios to merge */ |
701 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 702 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 703 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
704 | }; |
705 | ||
c227f912 CY |
706 | enum inode_type { |
707 | DIR_INODE, /* for dirty dir inode */ | |
708 | FILE_INODE, /* for dirty regular/symlink inode */ | |
0f18b462 | 709 | DIRTY_META, /* for all dirtied inode metadata */ |
c227f912 CY |
710 | NR_INODE_TYPE, |
711 | }; | |
712 | ||
67298804 CY |
713 | /* for inner inode cache management */ |
714 | struct inode_management { | |
715 | struct radix_tree_root ino_root; /* ino entry array */ | |
716 | spinlock_t ino_lock; /* for ino entry lock */ | |
717 | struct list_head ino_list; /* inode list head */ | |
718 | unsigned long ino_num; /* number of entries */ | |
719 | }; | |
720 | ||
caf0047e CY |
721 | /* For s_flag in struct f2fs_sb_info */ |
722 | enum { | |
723 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
724 | SBI_IS_CLOSE, /* specify unmounting */ | |
725 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
726 | SBI_POR_DOING, /* recovery is doing or not */ | |
df728b0f | 727 | SBI_NEED_SB_WRITE, /* need to recover superblock */ |
bbf156f7 | 728 | SBI_NEED_CP, /* need to checkpoint */ |
caf0047e CY |
729 | }; |
730 | ||
6beceb54 JK |
731 | enum { |
732 | CP_TIME, | |
d0239e1b | 733 | REQ_TIME, |
6beceb54 JK |
734 | MAX_TIME, |
735 | }; | |
736 | ||
b5a7aef1 JK |
737 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
738 | #define F2FS_KEY_DESC_PREFIX "f2fs:" | |
739 | #define F2FS_KEY_DESC_PREFIX_SIZE 5 | |
740 | #endif | |
39a53e0c JK |
741 | struct f2fs_sb_info { |
742 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 743 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c | 744 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
e8240f65 | 745 | int valid_super_block; /* valid super block no */ |
fadb2fb8 | 746 | unsigned long s_flag; /* flags for sbi */ |
39a53e0c | 747 | |
b5a7aef1 JK |
748 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
749 | u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE]; | |
750 | u8 key_prefix_size; | |
751 | #endif | |
39a53e0c JK |
752 | /* for node-related operations */ |
753 | struct f2fs_nm_info *nm_info; /* node manager */ | |
754 | struct inode *node_inode; /* cache node blocks */ | |
755 | ||
756 | /* for segment-related operations */ | |
757 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
758 | |
759 | /* for bio operations */ | |
924b720b | 760 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 761 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
7dfeaa32 | 762 | struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */ |
39a53e0c JK |
763 | |
764 | /* for checkpoint */ | |
765 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
aaec2b1d | 766 | spinlock_t cp_lock; /* for flag in ckpt */ |
39a53e0c | 767 | struct inode *meta_inode; /* cache meta blocks */ |
39936837 | 768 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
b873b798 | 769 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 770 | struct rw_semaphore node_write; /* locking node writes */ |
fb51b5ef | 771 | wait_queue_head_t cp_wait; |
6beceb54 JK |
772 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
773 | long interval_time[MAX_TIME]; /* to store thresholds */ | |
39a53e0c | 774 | |
67298804 | 775 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
776 | |
777 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 778 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c | 779 | |
c227f912 CY |
780 | /* for inode management */ |
781 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ | |
782 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ | |
39a53e0c | 783 | |
13054c54 CY |
784 | /* for extent tree cache */ |
785 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
786 | struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ | |
787 | struct list_head extent_list; /* lru list for shrinker */ | |
788 | spinlock_t extent_lock; /* locking extent lru list */ | |
7441ccef | 789 | atomic_t total_ext_tree; /* extent tree count */ |
137d09f0 | 790 | struct list_head zombie_list; /* extent zombie tree list */ |
74fd8d99 | 791 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
13054c54 CY |
792 | atomic_t total_ext_node; /* extent info count */ |
793 | ||
e1c42045 | 794 | /* basic filesystem units */ |
39a53e0c JK |
795 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
796 | unsigned int log_blocksize; /* log2 block size */ | |
797 | unsigned int blocksize; /* block size */ | |
798 | unsigned int root_ino_num; /* root inode number*/ | |
799 | unsigned int node_ino_num; /* node inode number*/ | |
800 | unsigned int meta_ino_num; /* meta inode number*/ | |
801 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
802 | unsigned int blocks_per_seg; /* blocks per segment */ | |
803 | unsigned int segs_per_sec; /* segments per section */ | |
804 | unsigned int secs_per_zone; /* sections per zone */ | |
805 | unsigned int total_sections; /* total section count */ | |
806 | unsigned int total_node_count; /* total node block count */ | |
807 | unsigned int total_valid_node_count; /* valid node block count */ | |
e0afc4d6 | 808 | loff_t max_file_blocks; /* max block index of file */ |
39a53e0c | 809 | int active_logs; /* # of active logs */ |
ab9fa662 | 810 | int dir_level; /* directory level */ |
39a53e0c JK |
811 | |
812 | block_t user_block_count; /* # of user blocks */ | |
813 | block_t total_valid_block_count; /* # of valid blocks */ | |
a66cdd98 | 814 | block_t discard_blks; /* discard command candidats */ |
39a53e0c JK |
815 | block_t last_valid_block_count; /* for recovery */ |
816 | u32 s_next_generation; /* for NFS support */ | |
f5730184 | 817 | atomic_t nr_wb_bios; /* # of writeback bios */ |
523be8a6 JK |
818 | |
819 | /* # of pages, see count_type */ | |
820 | struct percpu_counter nr_pages[NR_COUNT_TYPE]; | |
41382ec4 JK |
821 | /* # of allocated blocks */ |
822 | struct percpu_counter alloc_valid_block_count; | |
39a53e0c | 823 | |
513c5f37 JK |
824 | /* valid inode count */ |
825 | struct percpu_counter total_valid_inode_count; | |
826 | ||
39a53e0c JK |
827 | struct f2fs_mount_info mount_opt; /* mount options */ |
828 | ||
829 | /* for cleaning operations */ | |
830 | struct mutex gc_mutex; /* mutex for GC */ | |
831 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 832 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 833 | |
b1c57c1c JK |
834 | /* maximum # of trials to find a victim segment for SSR and GC */ |
835 | unsigned int max_victim_search; | |
836 | ||
39a53e0c JK |
837 | /* |
838 | * for stat information. | |
839 | * one is for the LFS mode, and the other is for the SSR mode. | |
840 | */ | |
35b09d82 | 841 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
842 | struct f2fs_stat_info *stat_info; /* FS status information */ |
843 | unsigned int segment_count[2]; /* # of allocated segments */ | |
844 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 845 | atomic_t inplace_count; /* # of inplace update */ |
5b7ee374 CY |
846 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
847 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
848 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
849 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
d5e8f6c9 | 850 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
03e14d52 CY |
851 | atomic_t inline_inode; /* # of inline_data inodes */ |
852 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
39a53e0c | 853 | int bg_gc; /* background gc calls */ |
33fbd510 | 854 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
35b09d82 NJ |
855 | #endif |
856 | unsigned int last_victim[2]; /* last victim segment # */ | |
39a53e0c | 857 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
858 | |
859 | /* For sysfs suppport */ | |
860 | struct kobject s_kobj; | |
861 | struct completion s_kobj_unregister; | |
2658e50d JK |
862 | |
863 | /* For shrinker support */ | |
864 | struct list_head s_list; | |
865 | struct mutex umount_mutex; | |
866 | unsigned int shrinker_run_no; | |
8f1dbbbb SL |
867 | |
868 | /* For write statistics */ | |
869 | u64 sectors_written_start; | |
870 | u64 kbytes_written; | |
43b6573b KM |
871 | |
872 | /* Reference to checksum algorithm driver via cryptoapi */ | |
873 | struct crypto_shash *s_chksum_driver; | |
1ecc0c5c CY |
874 | |
875 | /* For fault injection */ | |
876 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
877 | struct f2fs_fault_info fault_info; | |
878 | #endif | |
39a53e0c JK |
879 | }; |
880 | ||
1ecc0c5c CY |
881 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
882 | static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) | |
883 | { | |
884 | struct f2fs_fault_info *ffi = &sbi->fault_info; | |
885 | ||
886 | if (!ffi->inject_rate) | |
887 | return false; | |
888 | ||
889 | if (!IS_FAULT_SET(ffi, type)) | |
890 | return false; | |
891 | ||
892 | atomic_inc(&ffi->inject_ops); | |
893 | if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { | |
894 | atomic_set(&ffi->inject_ops, 0); | |
895 | printk("%sF2FS-fs : inject %s in %pF\n", | |
896 | KERN_INFO, | |
897 | fault_name[type], | |
898 | __builtin_return_address(0)); | |
899 | return true; | |
900 | } | |
901 | return false; | |
902 | } | |
903 | #endif | |
904 | ||
8f1dbbbb SL |
905 | /* For write statistics. Suppose sector size is 512 bytes, |
906 | * and the return value is in kbytes. s is of struct f2fs_sb_info. | |
907 | */ | |
908 | #define BD_PART_WRITTEN(s) \ | |
909 | (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \ | |
910 | s->sectors_written_start) >> 1) | |
911 | ||
6beceb54 JK |
912 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
913 | { | |
914 | sbi->last_time[type] = jiffies; | |
915 | } | |
916 | ||
917 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) | |
918 | { | |
919 | struct timespec ts = {sbi->interval_time[type], 0}; | |
920 | unsigned long interval = timespec_to_jiffies(&ts); | |
921 | ||
922 | return time_after(jiffies, sbi->last_time[type] + interval); | |
923 | } | |
924 | ||
d0239e1b JK |
925 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
926 | { | |
927 | struct block_device *bdev = sbi->sb->s_bdev; | |
928 | struct request_queue *q = bdev_get_queue(bdev); | |
929 | struct request_list *rl = &q->root_rl; | |
930 | ||
931 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) | |
932 | return 0; | |
933 | ||
934 | return f2fs_time_over(sbi, REQ_TIME); | |
935 | } | |
936 | ||
39a53e0c JK |
937 | /* |
938 | * Inline functions | |
939 | */ | |
43b6573b KM |
940 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
941 | unsigned int length) | |
942 | { | |
943 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); | |
944 | u32 *ctx = (u32 *)shash_desc_ctx(shash); | |
945 | int err; | |
946 | ||
947 | shash->tfm = sbi->s_chksum_driver; | |
948 | shash->flags = 0; | |
949 | *ctx = F2FS_SUPER_MAGIC; | |
950 | ||
951 | err = crypto_shash_update(shash, address, length); | |
952 | BUG_ON(err); | |
953 | ||
954 | return *ctx; | |
955 | } | |
956 | ||
957 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, | |
958 | void *buf, size_t buf_size) | |
959 | { | |
960 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; | |
961 | } | |
962 | ||
39a53e0c JK |
963 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
964 | { | |
965 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
966 | } | |
967 | ||
968 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
969 | { | |
970 | return sb->s_fs_info; | |
971 | } | |
972 | ||
4081363f JK |
973 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
974 | { | |
975 | return F2FS_SB(inode->i_sb); | |
976 | } | |
977 | ||
978 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
979 | { | |
980 | return F2FS_I_SB(mapping->host); | |
981 | } | |
982 | ||
983 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
984 | { | |
985 | return F2FS_M_SB(page->mapping); | |
986 | } | |
987 | ||
39a53e0c JK |
988 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
989 | { | |
990 | return (struct f2fs_super_block *)(sbi->raw_super); | |
991 | } | |
992 | ||
993 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
994 | { | |
995 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
996 | } | |
997 | ||
45590710 GZ |
998 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
999 | { | |
1000 | return (struct f2fs_node *)page_address(page); | |
1001 | } | |
1002 | ||
58bfaf44 JK |
1003 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
1004 | { | |
1005 | return &((struct f2fs_node *)page_address(page))->i; | |
1006 | } | |
1007 | ||
39a53e0c JK |
1008 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
1009 | { | |
1010 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
1011 | } | |
1012 | ||
1013 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
1014 | { | |
1015 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
1016 | } | |
1017 | ||
1018 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
1019 | { | |
1020 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
1021 | } | |
1022 | ||
1023 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
1024 | { | |
1025 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
1026 | } | |
1027 | ||
1028 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
1029 | { | |
1030 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
1031 | } | |
1032 | ||
9df27d98 GZ |
1033 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
1034 | { | |
1035 | return sbi->meta_inode->i_mapping; | |
1036 | } | |
1037 | ||
4ef51a8f JK |
1038 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
1039 | { | |
1040 | return sbi->node_inode->i_mapping; | |
1041 | } | |
1042 | ||
caf0047e CY |
1043 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
1044 | { | |
fadb2fb8 | 1045 | return test_bit(type, &sbi->s_flag); |
caf0047e CY |
1046 | } |
1047 | ||
1048 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 1049 | { |
fadb2fb8 | 1050 | set_bit(type, &sbi->s_flag); |
39a53e0c JK |
1051 | } |
1052 | ||
caf0047e | 1053 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 1054 | { |
fadb2fb8 | 1055 | clear_bit(type, &sbi->s_flag); |
39a53e0c JK |
1056 | } |
1057 | ||
d71b5564 JK |
1058 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
1059 | { | |
1060 | return le64_to_cpu(cp->checkpoint_ver); | |
1061 | } | |
1062 | ||
aaec2b1d | 1063 | static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
25ca923b JK |
1064 | { |
1065 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
aaec2b1d | 1066 | |
25ca923b JK |
1067 | return ckpt_flags & f; |
1068 | } | |
1069 | ||
aaec2b1d | 1070 | static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
25ca923b | 1071 | { |
aaec2b1d CY |
1072 | return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); |
1073 | } | |
1074 | ||
1075 | static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1076 | { | |
1077 | unsigned int ckpt_flags; | |
1078 | ||
1079 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
25ca923b JK |
1080 | ckpt_flags |= f; |
1081 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1082 | } | |
1083 | ||
aaec2b1d | 1084 | static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
25ca923b | 1085 | { |
aaec2b1d CY |
1086 | spin_lock(&sbi->cp_lock); |
1087 | __set_ckpt_flags(F2FS_CKPT(sbi), f); | |
1088 | spin_unlock(&sbi->cp_lock); | |
1089 | } | |
1090 | ||
1091 | static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1092 | { | |
1093 | unsigned int ckpt_flags; | |
1094 | ||
1095 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
25ca923b JK |
1096 | ckpt_flags &= (~f); |
1097 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1098 | } | |
1099 | ||
aaec2b1d CY |
1100 | static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
1101 | { | |
1102 | spin_lock(&sbi->cp_lock); | |
1103 | __clear_ckpt_flags(F2FS_CKPT(sbi), f); | |
1104 | spin_unlock(&sbi->cp_lock); | |
1105 | } | |
1106 | ||
3e025740 JK |
1107 | static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi) |
1108 | { | |
1109 | struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev); | |
1110 | ||
1111 | return blk_queue_discard(q); | |
1112 | } | |
1113 | ||
e479556b | 1114 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 1115 | { |
b873b798 | 1116 | down_read(&sbi->cp_rwsem); |
39936837 JK |
1117 | } |
1118 | ||
e479556b | 1119 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 1120 | { |
b873b798 | 1121 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
1122 | } |
1123 | ||
e479556b | 1124 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 1125 | { |
b873b798 | 1126 | down_write(&sbi->cp_rwsem); |
39936837 JK |
1127 | } |
1128 | ||
e479556b | 1129 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 1130 | { |
b873b798 | 1131 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
1132 | } |
1133 | ||
119ee914 JK |
1134 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
1135 | { | |
1136 | int reason = CP_SYNC; | |
1137 | ||
1138 | if (test_opt(sbi, FASTBOOT)) | |
1139 | reason = CP_FASTBOOT; | |
1140 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
1141 | reason = CP_UMOUNT; | |
1142 | return reason; | |
1143 | } | |
1144 | ||
1145 | static inline bool __remain_node_summaries(int reason) | |
1146 | { | |
1147 | return (reason == CP_UMOUNT || reason == CP_FASTBOOT); | |
1148 | } | |
1149 | ||
1150 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
1151 | { | |
aaec2b1d CY |
1152 | return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || |
1153 | is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); | |
119ee914 JK |
1154 | } |
1155 | ||
39a53e0c JK |
1156 | /* |
1157 | * Check whether the given nid is within node id range. | |
1158 | */ | |
064e0823 | 1159 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 1160 | { |
d6b7d4b3 CY |
1161 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
1162 | return -EINVAL; | |
cfb271d4 | 1163 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
1164 | return -EINVAL; |
1165 | return 0; | |
39a53e0c JK |
1166 | } |
1167 | ||
1168 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
1169 | ||
1170 | /* | |
1171 | * Check whether the inode has blocks or not | |
1172 | */ | |
1173 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1174 | { | |
1175 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 1176 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 1177 | else |
6c311ec6 | 1178 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
1179 | } |
1180 | ||
4bc8e9bc CY |
1181 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
1182 | { | |
1183 | return ofs == XATTR_NODE_OFFSET; | |
1184 | } | |
1185 | ||
8edd03c8 | 1186 | static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool); |
39a53e0c | 1187 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
46008c6d | 1188 | struct inode *inode, blkcnt_t *count) |
39a53e0c | 1189 | { |
dd11a5df | 1190 | blkcnt_t diff; |
39a53e0c | 1191 | |
cb78942b | 1192 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1ecc0c5c | 1193 | if (time_to_inject(sbi, FAULT_BLOCK)) |
cb78942b | 1194 | return false; |
cb78942b | 1195 | #endif |
dd11a5df JK |
1196 | /* |
1197 | * let's increase this in prior to actual block count change in order | |
1198 | * for f2fs_sync_file to avoid data races when deciding checkpoint. | |
1199 | */ | |
1200 | percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); | |
1201 | ||
2555a2d5 JK |
1202 | spin_lock(&sbi->stat_lock); |
1203 | sbi->total_valid_block_count += (block_t)(*count); | |
1204 | if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) { | |
dd11a5df JK |
1205 | diff = sbi->total_valid_block_count - sbi->user_block_count; |
1206 | *count -= diff; | |
2555a2d5 | 1207 | sbi->total_valid_block_count = sbi->user_block_count; |
46008c6d CY |
1208 | if (!*count) { |
1209 | spin_unlock(&sbi->stat_lock); | |
dd11a5df | 1210 | percpu_counter_sub(&sbi->alloc_valid_block_count, diff); |
46008c6d CY |
1211 | return false; |
1212 | } | |
39a53e0c | 1213 | } |
39a53e0c | 1214 | spin_unlock(&sbi->stat_lock); |
41382ec4 | 1215 | |
2555a2d5 | 1216 | f2fs_i_blocks_write(inode, *count, true); |
39a53e0c JK |
1217 | return true; |
1218 | } | |
1219 | ||
da19b0dc | 1220 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
1221 | struct inode *inode, |
1222 | blkcnt_t count) | |
1223 | { | |
1224 | spin_lock(&sbi->stat_lock); | |
9850cf4a JK |
1225 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
1226 | f2fs_bug_on(sbi, inode->i_blocks < count); | |
39a53e0c JK |
1227 | sbi->total_valid_block_count -= (block_t)count; |
1228 | spin_unlock(&sbi->stat_lock); | |
2555a2d5 | 1229 | f2fs_i_blocks_write(inode, count, false); |
39a53e0c JK |
1230 | } |
1231 | ||
1232 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1233 | { | |
523be8a6 | 1234 | percpu_counter_inc(&sbi->nr_pages[count_type]); |
7c4abcbe CY |
1235 | |
1236 | if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES) | |
1237 | return; | |
1238 | ||
caf0047e | 1239 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
1240 | } |
1241 | ||
a7ffdbe2 | 1242 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 1243 | { |
1beba1b3 | 1244 | percpu_counter_inc(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1245 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1246 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1247 | } |
1248 | ||
1249 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1250 | { | |
523be8a6 | 1251 | percpu_counter_dec(&sbi->nr_pages[count_type]); |
39a53e0c JK |
1252 | } |
1253 | ||
a7ffdbe2 | 1254 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 1255 | { |
5ac9f36f CY |
1256 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1257 | !S_ISLNK(inode->i_mode)) | |
1fe54f9d JK |
1258 | return; |
1259 | ||
1beba1b3 | 1260 | percpu_counter_dec(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1261 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1262 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1263 | } |
1264 | ||
523be8a6 | 1265 | static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) |
39a53e0c | 1266 | { |
523be8a6 | 1267 | return percpu_counter_sum_positive(&sbi->nr_pages[count_type]); |
39a53e0c JK |
1268 | } |
1269 | ||
1beba1b3 | 1270 | static inline s64 get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1271 | { |
1beba1b3 | 1272 | return percpu_counter_sum_positive(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1273 | } |
1274 | ||
5ac206cf NJ |
1275 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1276 | { | |
3519e3f9 | 1277 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
523be8a6 JK |
1278 | unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> |
1279 | sbi->log_blocks_per_seg; | |
1280 | ||
1281 | return segs / sbi->segs_per_sec; | |
5ac206cf NJ |
1282 | } |
1283 | ||
39a53e0c JK |
1284 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1285 | { | |
8b8343fa | 1286 | return sbi->total_valid_block_count; |
39a53e0c JK |
1287 | } |
1288 | ||
f83a2584 YH |
1289 | static inline block_t discard_blocks(struct f2fs_sb_info *sbi) |
1290 | { | |
1291 | return sbi->discard_blks; | |
1292 | } | |
1293 | ||
39a53e0c JK |
1294 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) |
1295 | { | |
1296 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1297 | ||
1298 | /* return NAT or SIT bitmap */ | |
1299 | if (flag == NAT_BITMAP) | |
1300 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1301 | else if (flag == SIT_BITMAP) | |
1302 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1303 | ||
1304 | return 0; | |
1305 | } | |
1306 | ||
55141486 WL |
1307 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1308 | { | |
1309 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1310 | } | |
1311 | ||
39a53e0c JK |
1312 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1313 | { | |
1314 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1315 | int offset; |
1316 | ||
55141486 | 1317 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1318 | if (flag == NAT_BITMAP) |
1319 | return &ckpt->sit_nat_version_bitmap; | |
1320 | else | |
65b85ccc | 1321 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1322 | } else { |
1323 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1324 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1325 | return &ckpt->sit_nat_version_bitmap + offset; |
1326 | } | |
39a53e0c JK |
1327 | } |
1328 | ||
1329 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1330 | { | |
1331 | block_t start_addr; | |
1332 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d71b5564 | 1333 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
39a53e0c | 1334 | |
25ca923b | 1335 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c JK |
1336 | |
1337 | /* | |
1338 | * odd numbered checkpoint should at cp segment 0 | |
e1c42045 | 1339 | * and even segment must be at cp segment 1 |
39a53e0c JK |
1340 | */ |
1341 | if (!(ckpt_version & 1)) | |
1342 | start_addr += sbi->blocks_per_seg; | |
1343 | ||
1344 | return start_addr; | |
1345 | } | |
1346 | ||
1347 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
1348 | { | |
1349 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1350 | } | |
1351 | ||
1352 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1353 | struct inode *inode) |
39a53e0c JK |
1354 | { |
1355 | block_t valid_block_count; | |
1356 | unsigned int valid_node_count; | |
1357 | ||
1358 | spin_lock(&sbi->stat_lock); | |
1359 | ||
ef86d709 | 1360 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 1361 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1362 | spin_unlock(&sbi->stat_lock); |
1363 | return false; | |
1364 | } | |
1365 | ||
ef86d709 | 1366 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1367 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1368 | spin_unlock(&sbi->stat_lock); |
1369 | return false; | |
1370 | } | |
1371 | ||
1372 | if (inode) | |
8edd03c8 | 1373 | f2fs_i_blocks_write(inode, 1, true); |
ef86d709 | 1374 | |
ef86d709 GZ |
1375 | sbi->total_valid_node_count++; |
1376 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1377 | spin_unlock(&sbi->stat_lock); |
1378 | ||
41382ec4 | 1379 | percpu_counter_inc(&sbi->alloc_valid_block_count); |
39a53e0c JK |
1380 | return true; |
1381 | } | |
1382 | ||
1383 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1384 | struct inode *inode) |
39a53e0c JK |
1385 | { |
1386 | spin_lock(&sbi->stat_lock); | |
1387 | ||
9850cf4a JK |
1388 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1389 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1390 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1391 | |
8edd03c8 | 1392 | f2fs_i_blocks_write(inode, 1, false); |
ef86d709 GZ |
1393 | sbi->total_valid_node_count--; |
1394 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1395 | |
1396 | spin_unlock(&sbi->stat_lock); | |
1397 | } | |
1398 | ||
1399 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1400 | { | |
8b8343fa | 1401 | return sbi->total_valid_node_count; |
39a53e0c JK |
1402 | } |
1403 | ||
1404 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1405 | { | |
513c5f37 | 1406 | percpu_counter_inc(&sbi->total_valid_inode_count); |
39a53e0c JK |
1407 | } |
1408 | ||
0e80220a | 1409 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c | 1410 | { |
513c5f37 | 1411 | percpu_counter_dec(&sbi->total_valid_inode_count); |
39a53e0c JK |
1412 | } |
1413 | ||
513c5f37 | 1414 | static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c | 1415 | { |
513c5f37 | 1416 | return percpu_counter_sum_positive(&sbi->total_valid_inode_count); |
39a53e0c JK |
1417 | } |
1418 | ||
a56c7c6f JK |
1419 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
1420 | pgoff_t index, bool for_write) | |
1421 | { | |
c41f3cc3 JK |
1422 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1423 | struct page *page = find_lock_page(mapping, index); | |
1424 | if (page) | |
1425 | return page; | |
1426 | ||
1ecc0c5c | 1427 | if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) |
c41f3cc3 JK |
1428 | return NULL; |
1429 | #endif | |
a56c7c6f JK |
1430 | if (!for_write) |
1431 | return grab_cache_page(mapping, index); | |
1432 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); | |
1433 | } | |
1434 | ||
6e2c64ad JK |
1435 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
1436 | { | |
1437 | char *src_kaddr = kmap(src); | |
1438 | char *dst_kaddr = kmap(dst); | |
1439 | ||
1440 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); | |
1441 | kunmap(dst); | |
1442 | kunmap(src); | |
1443 | } | |
1444 | ||
39a53e0c JK |
1445 | static inline void f2fs_put_page(struct page *page, int unlock) |
1446 | { | |
031fa8cc | 1447 | if (!page) |
39a53e0c JK |
1448 | return; |
1449 | ||
1450 | if (unlock) { | |
9850cf4a | 1451 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1452 | unlock_page(page); |
1453 | } | |
09cbfeaf | 1454 | put_page(page); |
39a53e0c JK |
1455 | } |
1456 | ||
1457 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1458 | { | |
1459 | if (dn->node_page) | |
1460 | f2fs_put_page(dn->node_page, 1); | |
1461 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1462 | f2fs_put_page(dn->inode_page, 0); | |
1463 | dn->node_page = NULL; | |
1464 | dn->inode_page = NULL; | |
1465 | } | |
1466 | ||
1467 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1468 | size_t size) |
39a53e0c | 1469 | { |
e8512d2e | 1470 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1471 | } |
1472 | ||
7bd59381 GZ |
1473 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1474 | gfp_t flags) | |
1475 | { | |
1476 | void *entry; | |
7bd59381 | 1477 | |
80c54505 JK |
1478 | entry = kmem_cache_alloc(cachep, flags); |
1479 | if (!entry) | |
1480 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
7bd59381 GZ |
1481 | return entry; |
1482 | } | |
1483 | ||
740432f8 JK |
1484 | static inline struct bio *f2fs_bio_alloc(int npages) |
1485 | { | |
1486 | struct bio *bio; | |
1487 | ||
1488 | /* No failure on bio allocation */ | |
740432f8 | 1489 | bio = bio_alloc(GFP_NOIO, npages); |
80c54505 JK |
1490 | if (!bio) |
1491 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); | |
740432f8 JK |
1492 | return bio; |
1493 | } | |
1494 | ||
9be32d72 JK |
1495 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1496 | unsigned long index, void *item) | |
1497 | { | |
1498 | while (radix_tree_insert(root, index, item)) | |
1499 | cond_resched(); | |
1500 | } | |
1501 | ||
39a53e0c JK |
1502 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1503 | ||
1504 | static inline bool IS_INODE(struct page *page) | |
1505 | { | |
45590710 | 1506 | struct f2fs_node *p = F2FS_NODE(page); |
39a53e0c JK |
1507 | return RAW_IS_INODE(p); |
1508 | } | |
1509 | ||
1510 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1511 | { | |
1512 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1513 | } | |
1514 | ||
1515 | static inline block_t datablock_addr(struct page *node_page, | |
1516 | unsigned int offset) | |
1517 | { | |
1518 | struct f2fs_node *raw_node; | |
1519 | __le32 *addr_array; | |
45590710 | 1520 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1521 | addr_array = blkaddr_in_node(raw_node); |
1522 | return le32_to_cpu(addr_array[offset]); | |
1523 | } | |
1524 | ||
1525 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1526 | { | |
1527 | int mask; | |
1528 | ||
1529 | addr += (nr >> 3); | |
1530 | mask = 1 << (7 - (nr & 0x07)); | |
1531 | return mask & *addr; | |
1532 | } | |
1533 | ||
a66cdd98 JK |
1534 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1535 | { | |
1536 | int mask; | |
1537 | ||
1538 | addr += (nr >> 3); | |
1539 | mask = 1 << (7 - (nr & 0x07)); | |
1540 | *addr |= mask; | |
1541 | } | |
1542 | ||
1543 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
1544 | { | |
1545 | int mask; | |
1546 | ||
1547 | addr += (nr >> 3); | |
1548 | mask = 1 << (7 - (nr & 0x07)); | |
1549 | *addr &= ~mask; | |
1550 | } | |
1551 | ||
52aca074 | 1552 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1553 | { |
1554 | int mask; | |
1555 | int ret; | |
1556 | ||
1557 | addr += (nr >> 3); | |
1558 | mask = 1 << (7 - (nr & 0x07)); | |
1559 | ret = mask & *addr; | |
1560 | *addr |= mask; | |
1561 | return ret; | |
1562 | } | |
1563 | ||
52aca074 | 1564 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1565 | { |
1566 | int mask; | |
1567 | int ret; | |
1568 | ||
1569 | addr += (nr >> 3); | |
1570 | mask = 1 << (7 - (nr & 0x07)); | |
1571 | ret = mask & *addr; | |
1572 | *addr &= ~mask; | |
1573 | return ret; | |
1574 | } | |
1575 | ||
c6ac4c0e GZ |
1576 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1577 | { | |
1578 | int mask; | |
1579 | ||
1580 | addr += (nr >> 3); | |
1581 | mask = 1 << (7 - (nr & 0x07)); | |
1582 | *addr ^= mask; | |
1583 | } | |
1584 | ||
39a53e0c JK |
1585 | /* used for f2fs_inode_info->flags */ |
1586 | enum { | |
1587 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1588 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
26de9b11 | 1589 | FI_AUTO_RECOVER, /* indicate inode is recoverable */ |
ed57c27f | 1590 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1591 | FI_INC_LINK, /* need to increment i_nlink */ |
1592 | FI_ACL_MODE, /* indicate acl mode */ | |
1593 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
c9b63bd0 | 1594 | FI_FREE_NID, /* free allocated nide */ |
c11abd1a | 1595 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1596 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1597 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1598 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1599 | FI_APPEND_WRITE, /* inode has appended data */ |
1600 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1601 | FI_NEED_IPU, /* used for ipu per file */ |
1602 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
02a1335f | 1603 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1604 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1605 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1606 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1607 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
d323d005 | 1608 | FI_DO_DEFRAG, /* indicate defragment is running */ |
c227f912 | 1609 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
39a53e0c JK |
1610 | }; |
1611 | ||
205b9822 JK |
1612 | static inline void __mark_inode_dirty_flag(struct inode *inode, |
1613 | int flag, bool set) | |
1614 | { | |
1615 | switch (flag) { | |
1616 | case FI_INLINE_XATTR: | |
1617 | case FI_INLINE_DATA: | |
1618 | case FI_INLINE_DENTRY: | |
1619 | if (set) | |
1620 | return; | |
1621 | case FI_DATA_EXIST: | |
1622 | case FI_INLINE_DOTS: | |
b56ab837 | 1623 | f2fs_mark_inode_dirty_sync(inode); |
205b9822 JK |
1624 | } |
1625 | } | |
1626 | ||
91942321 | 1627 | static inline void set_inode_flag(struct inode *inode, int flag) |
39a53e0c | 1628 | { |
91942321 JK |
1629 | if (!test_bit(flag, &F2FS_I(inode)->flags)) |
1630 | set_bit(flag, &F2FS_I(inode)->flags); | |
205b9822 | 1631 | __mark_inode_dirty_flag(inode, flag, true); |
39a53e0c JK |
1632 | } |
1633 | ||
91942321 | 1634 | static inline int is_inode_flag_set(struct inode *inode, int flag) |
39a53e0c | 1635 | { |
91942321 | 1636 | return test_bit(flag, &F2FS_I(inode)->flags); |
39a53e0c JK |
1637 | } |
1638 | ||
91942321 | 1639 | static inline void clear_inode_flag(struct inode *inode, int flag) |
39a53e0c | 1640 | { |
91942321 JK |
1641 | if (test_bit(flag, &F2FS_I(inode)->flags)) |
1642 | clear_bit(flag, &F2FS_I(inode)->flags); | |
205b9822 | 1643 | __mark_inode_dirty_flag(inode, flag, false); |
39a53e0c JK |
1644 | } |
1645 | ||
91942321 | 1646 | static inline void set_acl_inode(struct inode *inode, umode_t mode) |
39a53e0c | 1647 | { |
91942321 JK |
1648 | F2FS_I(inode)->i_acl_mode = mode; |
1649 | set_inode_flag(inode, FI_ACL_MODE); | |
b56ab837 | 1650 | f2fs_mark_inode_dirty_sync(inode); |
39a53e0c JK |
1651 | } |
1652 | ||
a1961246 | 1653 | static inline void f2fs_i_links_write(struct inode *inode, bool inc) |
39a53e0c | 1654 | { |
a1961246 JK |
1655 | if (inc) |
1656 | inc_nlink(inode); | |
1657 | else | |
1658 | drop_nlink(inode); | |
b56ab837 | 1659 | f2fs_mark_inode_dirty_sync(inode); |
a1961246 JK |
1660 | } |
1661 | ||
8edd03c8 JK |
1662 | static inline void f2fs_i_blocks_write(struct inode *inode, |
1663 | blkcnt_t diff, bool add) | |
1664 | { | |
26de9b11 JK |
1665 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
1666 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
1667 | ||
8edd03c8 JK |
1668 | inode->i_blocks = add ? inode->i_blocks + diff : |
1669 | inode->i_blocks - diff; | |
b56ab837 | 1670 | f2fs_mark_inode_dirty_sync(inode); |
26de9b11 JK |
1671 | if (clean || recover) |
1672 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
8edd03c8 JK |
1673 | } |
1674 | ||
fc9581c8 JK |
1675 | static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) |
1676 | { | |
26de9b11 JK |
1677 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
1678 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
1679 | ||
fc9581c8 JK |
1680 | if (i_size_read(inode) == i_size) |
1681 | return; | |
1682 | ||
1683 | i_size_write(inode, i_size); | |
b56ab837 | 1684 | f2fs_mark_inode_dirty_sync(inode); |
26de9b11 JK |
1685 | if (clean || recover) |
1686 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
39a53e0c JK |
1687 | } |
1688 | ||
26de9b11 | 1689 | static inline bool f2fs_skip_inode_update(struct inode *inode) |
39a53e0c | 1690 | { |
26de9b11 JK |
1691 | if (!is_inode_flag_set(inode, FI_AUTO_RECOVER)) |
1692 | return false; | |
1693 | return F2FS_I(inode)->last_disk_size == i_size_read(inode); | |
39a53e0c JK |
1694 | } |
1695 | ||
205b9822 | 1696 | static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) |
39a53e0c | 1697 | { |
205b9822 | 1698 | F2FS_I(inode)->i_current_depth = depth; |
b56ab837 | 1699 | f2fs_mark_inode_dirty_sync(inode); |
39a53e0c JK |
1700 | } |
1701 | ||
205b9822 | 1702 | static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) |
444c580f | 1703 | { |
205b9822 | 1704 | F2FS_I(inode)->i_xattr_nid = xnid; |
b56ab837 | 1705 | f2fs_mark_inode_dirty_sync(inode); |
205b9822 JK |
1706 | } |
1707 | ||
1708 | static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) | |
1709 | { | |
1710 | F2FS_I(inode)->i_pino = pino; | |
b56ab837 | 1711 | f2fs_mark_inode_dirty_sync(inode); |
205b9822 JK |
1712 | } |
1713 | ||
91942321 | 1714 | static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) |
444c580f | 1715 | { |
205b9822 JK |
1716 | struct f2fs_inode_info *fi = F2FS_I(inode); |
1717 | ||
444c580f | 1718 | if (ri->i_inline & F2FS_INLINE_XATTR) |
205b9822 | 1719 | set_bit(FI_INLINE_XATTR, &fi->flags); |
1001b347 | 1720 | if (ri->i_inline & F2FS_INLINE_DATA) |
205b9822 | 1721 | set_bit(FI_INLINE_DATA, &fi->flags); |
34d67deb | 1722 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
205b9822 | 1723 | set_bit(FI_INLINE_DENTRY, &fi->flags); |
b3d208f9 | 1724 | if (ri->i_inline & F2FS_DATA_EXIST) |
205b9822 | 1725 | set_bit(FI_DATA_EXIST, &fi->flags); |
510022a8 | 1726 | if (ri->i_inline & F2FS_INLINE_DOTS) |
205b9822 | 1727 | set_bit(FI_INLINE_DOTS, &fi->flags); |
444c580f JK |
1728 | } |
1729 | ||
91942321 | 1730 | static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) |
444c580f JK |
1731 | { |
1732 | ri->i_inline = 0; | |
1733 | ||
91942321 | 1734 | if (is_inode_flag_set(inode, FI_INLINE_XATTR)) |
444c580f | 1735 | ri->i_inline |= F2FS_INLINE_XATTR; |
91942321 | 1736 | if (is_inode_flag_set(inode, FI_INLINE_DATA)) |
1001b347 | 1737 | ri->i_inline |= F2FS_INLINE_DATA; |
91942321 | 1738 | if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) |
34d67deb | 1739 | ri->i_inline |= F2FS_INLINE_DENTRY; |
91942321 | 1740 | if (is_inode_flag_set(inode, FI_DATA_EXIST)) |
b3d208f9 | 1741 | ri->i_inline |= F2FS_DATA_EXIST; |
91942321 | 1742 | if (is_inode_flag_set(inode, FI_INLINE_DOTS)) |
510022a8 | 1743 | ri->i_inline |= F2FS_INLINE_DOTS; |
444c580f JK |
1744 | } |
1745 | ||
987c7c31 CY |
1746 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1747 | { | |
91942321 | 1748 | return is_inode_flag_set(inode, FI_INLINE_XATTR); |
987c7c31 CY |
1749 | } |
1750 | ||
81ca7350 | 1751 | static inline unsigned int addrs_per_inode(struct inode *inode) |
de93653f | 1752 | { |
81ca7350 | 1753 | if (f2fs_has_inline_xattr(inode)) |
de93653f JK |
1754 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1755 | return DEF_ADDRS_PER_INODE; | |
1756 | } | |
1757 | ||
65985d93 JK |
1758 | static inline void *inline_xattr_addr(struct page *page) |
1759 | { | |
695fd1ed | 1760 | struct f2fs_inode *ri = F2FS_INODE(page); |
65985d93 JK |
1761 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1762 | F2FS_INLINE_XATTR_ADDRS]); | |
1763 | } | |
1764 | ||
1765 | static inline int inline_xattr_size(struct inode *inode) | |
1766 | { | |
987c7c31 | 1767 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1768 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1769 | else | |
1770 | return 0; | |
1771 | } | |
1772 | ||
0dbdc2ae JK |
1773 | static inline int f2fs_has_inline_data(struct inode *inode) |
1774 | { | |
91942321 | 1775 | return is_inode_flag_set(inode, FI_INLINE_DATA); |
0dbdc2ae JK |
1776 | } |
1777 | ||
b3d208f9 JK |
1778 | static inline void f2fs_clear_inline_inode(struct inode *inode) |
1779 | { | |
91942321 JK |
1780 | clear_inode_flag(inode, FI_INLINE_DATA); |
1781 | clear_inode_flag(inode, FI_DATA_EXIST); | |
b3d208f9 JK |
1782 | } |
1783 | ||
1784 | static inline int f2fs_exist_data(struct inode *inode) | |
1785 | { | |
91942321 | 1786 | return is_inode_flag_set(inode, FI_DATA_EXIST); |
b3d208f9 JK |
1787 | } |
1788 | ||
510022a8 JK |
1789 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1790 | { | |
91942321 | 1791 | return is_inode_flag_set(inode, FI_INLINE_DOTS); |
510022a8 JK |
1792 | } |
1793 | ||
88b88a66 JK |
1794 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1795 | { | |
91942321 | 1796 | return is_inode_flag_set(inode, FI_ATOMIC_FILE); |
88b88a66 JK |
1797 | } |
1798 | ||
02a1335f JK |
1799 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
1800 | { | |
91942321 | 1801 | return is_inode_flag_set(inode, FI_VOLATILE_FILE); |
02a1335f JK |
1802 | } |
1803 | ||
3c6c2beb JK |
1804 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
1805 | { | |
91942321 | 1806 | return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); |
3c6c2beb JK |
1807 | } |
1808 | ||
1e84371f JK |
1809 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
1810 | { | |
91942321 | 1811 | return is_inode_flag_set(inode, FI_DROP_CACHE); |
1e84371f JK |
1812 | } |
1813 | ||
1001b347 HL |
1814 | static inline void *inline_data_addr(struct page *page) |
1815 | { | |
695fd1ed | 1816 | struct f2fs_inode *ri = F2FS_INODE(page); |
1001b347 HL |
1817 | return (void *)&(ri->i_addr[1]); |
1818 | } | |
1819 | ||
34d67deb CY |
1820 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
1821 | { | |
91942321 | 1822 | return is_inode_flag_set(inode, FI_INLINE_DENTRY); |
34d67deb CY |
1823 | } |
1824 | ||
9486ba44 JK |
1825 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
1826 | { | |
1827 | if (!f2fs_has_inline_dentry(dir)) | |
1828 | kunmap(page); | |
1829 | } | |
1830 | ||
b5492af7 JK |
1831 | static inline int is_file(struct inode *inode, int type) |
1832 | { | |
1833 | return F2FS_I(inode)->i_advise & type; | |
1834 | } | |
1835 | ||
1836 | static inline void set_file(struct inode *inode, int type) | |
1837 | { | |
1838 | F2FS_I(inode)->i_advise |= type; | |
b56ab837 | 1839 | f2fs_mark_inode_dirty_sync(inode); |
b5492af7 JK |
1840 | } |
1841 | ||
1842 | static inline void clear_file(struct inode *inode, int type) | |
1843 | { | |
1844 | F2FS_I(inode)->i_advise &= ~type; | |
b56ab837 | 1845 | f2fs_mark_inode_dirty_sync(inode); |
b5492af7 JK |
1846 | } |
1847 | ||
77888c1e JK |
1848 | static inline int f2fs_readonly(struct super_block *sb) |
1849 | { | |
1850 | return sb->s_flags & MS_RDONLY; | |
1851 | } | |
1852 | ||
1e968fdf JK |
1853 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
1854 | { | |
aaec2b1d | 1855 | return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); |
1e968fdf JK |
1856 | } |
1857 | ||
eaa693f4 JK |
1858 | static inline bool is_dot_dotdot(const struct qstr *str) |
1859 | { | |
1860 | if (str->len == 1 && str->name[0] == '.') | |
1861 | return true; | |
1862 | ||
1863 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
1864 | return true; | |
1865 | ||
1866 | return false; | |
1867 | } | |
1868 | ||
3e72f721 JK |
1869 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
1870 | { | |
3e72f721 | 1871 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
91942321 | 1872 | is_inode_flag_set(inode, FI_NO_EXTENT)) |
3e72f721 JK |
1873 | return false; |
1874 | ||
886f56f9 | 1875 | return S_ISREG(inode->i_mode); |
3e72f721 JK |
1876 | } |
1877 | ||
1ecc0c5c CY |
1878 | static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, |
1879 | size_t size, gfp_t flags) | |
0414b004 | 1880 | { |
2c63fead | 1881 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1ecc0c5c | 1882 | if (time_to_inject(sbi, FAULT_KMALLOC)) |
2c63fead JK |
1883 | return NULL; |
1884 | #endif | |
0414b004 JK |
1885 | return kmalloc(size, flags); |
1886 | } | |
1887 | ||
39307a8e JK |
1888 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
1889 | { | |
1890 | void *ret; | |
1891 | ||
1892 | ret = kmalloc(size, flags | __GFP_NOWARN); | |
1893 | if (!ret) | |
1894 | ret = __vmalloc(size, flags, PAGE_KERNEL); | |
1895 | return ret; | |
1896 | } | |
1897 | ||
1898 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) | |
1899 | { | |
1900 | void *ret; | |
1901 | ||
1902 | ret = kzalloc(size, flags | __GFP_NOWARN); | |
1903 | if (!ret) | |
1904 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); | |
1905 | return ret; | |
1906 | } | |
1907 | ||
a6dda0e6 | 1908 | #define get_inode_mode(i) \ |
91942321 | 1909 | ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ |
a6dda0e6 CH |
1910 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) |
1911 | ||
267378d4 | 1912 | /* get offset of first page in next direct node */ |
81ca7350 CY |
1913 | #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \ |
1914 | ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \ | |
1915 | (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \ | |
1916 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode)) | |
267378d4 | 1917 | |
39a53e0c JK |
1918 | /* |
1919 | * file.c | |
1920 | */ | |
1921 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); | |
1922 | void truncate_data_blocks(struct dnode_of_data *); | |
764aa3e9 | 1923 | int truncate_blocks(struct inode *, u64, bool); |
9a449e9c | 1924 | int f2fs_truncate(struct inode *); |
2d4d9fb5 | 1925 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
39a53e0c JK |
1926 | int f2fs_setattr(struct dentry *, struct iattr *); |
1927 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); | |
b292dcab | 1928 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
39a53e0c | 1929 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
e9750824 | 1930 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
39a53e0c JK |
1931 | |
1932 | /* | |
1933 | * inode.c | |
1934 | */ | |
1935 | void f2fs_set_inode_flags(struct inode *); | |
39a53e0c | 1936 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
e8ea9b3d | 1937 | struct inode *f2fs_iget_retry(struct super_block *, unsigned long); |
4660f9c0 | 1938 | int try_to_free_nats(struct f2fs_sb_info *, int); |
12719ae1 JK |
1939 | int update_inode(struct inode *, struct page *); |
1940 | int update_inode_page(struct inode *); | |
39a53e0c JK |
1941 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
1942 | void f2fs_evict_inode(struct inode *); | |
44c16156 | 1943 | void handle_failed_inode(struct inode *); |
39a53e0c JK |
1944 | |
1945 | /* | |
1946 | * namei.c | |
1947 | */ | |
1948 | struct dentry *f2fs_get_parent(struct dentry *child); | |
1949 | ||
1950 | /* | |
1951 | * dir.c | |
1952 | */ | |
510022a8 | 1953 | void set_de_type(struct f2fs_dir_entry *, umode_t); |
675f10bd | 1954 | unsigned char get_de_type(struct f2fs_dir_entry *); |
0b81d077 | 1955 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *, |
6e22c691 | 1956 | f2fs_hash_t, int *, struct f2fs_dentry_ptr *); |
7b3cd7d6 | 1957 | bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, |
0b81d077 | 1958 | unsigned int, struct fscrypt_str *); |
062a3e7b JK |
1959 | void do_make_empty_dir(struct inode *, struct inode *, |
1960 | struct f2fs_dentry_ptr *); | |
dbeacf02 | 1961 | struct page *init_inode_metadata(struct inode *, struct inode *, |
9421d570 | 1962 | const struct qstr *, const struct qstr *, struct page *); |
dbeacf02 | 1963 | void update_parent_metadata(struct inode *, struct inode *, unsigned int); |
a82afa20 | 1964 | int room_for_filename(const void *, int, int); |
9f7c45cc | 1965 | void f2fs_drop_nlink(struct inode *, struct inode *); |
e7ba108a SL |
1966 | struct f2fs_dir_entry *__f2fs_find_entry(struct inode *, struct fscrypt_name *, |
1967 | struct page **); | |
185de68f | 1968 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, const struct qstr *, |
39a53e0c JK |
1969 | struct page **); |
1970 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); | |
835c92d4 | 1971 | ino_t f2fs_inode_by_name(struct inode *, const struct qstr *, struct page **); |
39a53e0c JK |
1972 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, |
1973 | struct page *, struct inode *); | |
e7d55452 | 1974 | int update_dent_inode(struct inode *, struct inode *, const struct qstr *); |
510022a8 | 1975 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, |
3b4d732a | 1976 | const struct qstr *, f2fs_hash_t , unsigned int); |
675f10bd | 1977 | int f2fs_add_regular_entry(struct inode *, const struct qstr *, |
9421d570 | 1978 | const struct qstr *, struct inode *, nid_t, umode_t); |
e7ba108a SL |
1979 | int __f2fs_do_add_link(struct inode *, struct fscrypt_name*, struct inode *, |
1980 | nid_t, umode_t); | |
510022a8 JK |
1981 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, |
1982 | umode_t); | |
dbeacf02 CY |
1983 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, |
1984 | struct inode *); | |
b97a9b5d | 1985 | int f2fs_do_tmpfile(struct inode *, struct inode *); |
39a53e0c JK |
1986 | bool f2fs_empty_dir(struct inode *); |
1987 | ||
b7f7a5e0 AV |
1988 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
1989 | { | |
2b0143b5 | 1990 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 1991 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
1992 | } |
1993 | ||
39a53e0c JK |
1994 | /* |
1995 | * super.c | |
1996 | */ | |
b56ab837 | 1997 | int f2fs_inode_dirtied(struct inode *); |
0f18b462 | 1998 | void f2fs_inode_synced(struct inode *); |
c5bda1c8 | 1999 | int f2fs_commit_super(struct f2fs_sb_info *, bool); |
39a53e0c | 2000 | int f2fs_sync_fs(struct super_block *, int); |
a07ef784 NJ |
2001 | extern __printf(3, 4) |
2002 | void f2fs_msg(struct super_block *, const char *, const char *, ...); | |
984ec63c | 2003 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
39a53e0c JK |
2004 | |
2005 | /* | |
2006 | * hash.c | |
2007 | */ | |
eee6160f | 2008 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *); |
39a53e0c JK |
2009 | |
2010 | /* | |
2011 | * node.c | |
2012 | */ | |
2013 | struct dnode_of_data; | |
2014 | struct node_info; | |
2015 | ||
6fb03f3a | 2016 | bool available_free_memory(struct f2fs_sb_info *, int); |
2dcf51ab | 2017 | int need_dentry_mark(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 2018 | bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 2019 | bool need_inode_block_update(struct f2fs_sb_info *, nid_t); |
39a53e0c | 2020 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
3cf45747 | 2021 | pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t); |
39a53e0c JK |
2022 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); |
2023 | int truncate_inode_blocks(struct inode *, pgoff_t); | |
4f16fb0f | 2024 | int truncate_xattr_node(struct inode *, struct page *); |
cfe58f9d | 2025 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
13ec7297 | 2026 | int remove_inode_page(struct inode *); |
a014e037 | 2027 | struct page *new_inode_page(struct inode *); |
8ae8f162 | 2028 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
39a53e0c JK |
2029 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
2030 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); | |
2031 | struct page *get_node_page_ra(struct page *, int); | |
da011cc0 | 2032 | void move_node_page(struct page *, int); |
26de9b11 JK |
2033 | int fsync_node_pages(struct f2fs_sb_info *, struct inode *, |
2034 | struct writeback_control *, bool); | |
52681375 | 2035 | int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *); |
ad4edb83 | 2036 | void build_free_nids(struct f2fs_sb_info *); |
39a53e0c JK |
2037 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); |
2038 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); | |
2039 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); | |
31696580 | 2040 | int try_to_free_nids(struct f2fs_sb_info *, int); |
70cfed88 | 2041 | void recover_inline_xattr(struct inode *, struct page *); |
1c35a90e | 2042 | void recover_xattr_data(struct inode *, struct page *, block_t); |
39a53e0c JK |
2043 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
2044 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, | |
2045 | struct f2fs_summary_block *); | |
2046 | void flush_nat_entries(struct f2fs_sb_info *); | |
2047 | int build_node_manager(struct f2fs_sb_info *); | |
2048 | void destroy_node_manager(struct f2fs_sb_info *); | |
6e6093a8 | 2049 | int __init create_node_manager_caches(void); |
39a53e0c JK |
2050 | void destroy_node_manager_caches(void); |
2051 | ||
2052 | /* | |
2053 | * segment.c | |
2054 | */ | |
88b88a66 | 2055 | void register_inmem_page(struct inode *, struct page *); |
29b96b54 CY |
2056 | void drop_inmem_pages(struct inode *); |
2057 | int commit_inmem_pages(struct inode *); | |
2c4db1a6 | 2058 | void f2fs_balance_fs(struct f2fs_sb_info *, bool); |
4660f9c0 | 2059 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
6b4afdd7 | 2060 | int f2fs_issue_flush(struct f2fs_sb_info *); |
2163d198 GZ |
2061 | int create_flush_cmd_control(struct f2fs_sb_info *); |
2062 | void destroy_flush_cmd_control(struct f2fs_sb_info *); | |
39a53e0c | 2063 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
6e2c64ad | 2064 | bool is_checkpointed_data(struct f2fs_sb_info *, block_t); |
5e443818 | 2065 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
275b66b0 | 2066 | void f2fs_wait_all_discard_bio(struct f2fs_sb_info *); |
836b5a63 | 2067 | void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); |
4b2fecc8 | 2068 | void release_discard_addrs(struct f2fs_sb_info *); |
3fa06d7b | 2069 | int npages_for_summary_flush(struct f2fs_sb_info *, bool); |
39a53e0c | 2070 | void allocate_new_segments(struct f2fs_sb_info *); |
4b2fecc8 | 2071 | int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); |
39a53e0c | 2072 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); |
381722d2 | 2073 | void update_meta_page(struct f2fs_sb_info *, void *, block_t); |
577e3495 | 2074 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
05ca3632 JK |
2075 | void write_node_page(unsigned int, struct f2fs_io_info *); |
2076 | void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); | |
2077 | void rewrite_data_page(struct f2fs_io_info *); | |
4356e48e CY |
2078 | void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *, |
2079 | block_t, block_t, bool, bool); | |
528e3459 | 2080 | void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *, |
28bc106b | 2081 | block_t, block_t, unsigned char, bool, bool); |
bfad7c2d JK |
2082 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
2083 | block_t, block_t *, struct f2fs_summary *, int); | |
fec1d657 | 2084 | void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool); |
08b39fbd | 2085 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t); |
39a53e0c JK |
2086 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
2087 | void write_node_summaries(struct f2fs_sb_info *, block_t); | |
dfc08a12 | 2088 | int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int); |
4b2fecc8 | 2089 | void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); |
39a53e0c | 2090 | int build_segment_manager(struct f2fs_sb_info *); |
39a53e0c | 2091 | void destroy_segment_manager(struct f2fs_sb_info *); |
7fd9e544 JK |
2092 | int __init create_segment_manager_caches(void); |
2093 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
2094 | |
2095 | /* | |
2096 | * checkpoint.c | |
2097 | */ | |
38f91ca8 | 2098 | void f2fs_stop_checkpoint(struct f2fs_sb_info *, bool); |
39a53e0c JK |
2099 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); |
2100 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); | |
2b947003 | 2101 | struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t); |
f0c9cada | 2102 | bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); |
26879fb1 | 2103 | int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool); |
635aee1f | 2104 | void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); |
39a53e0c | 2105 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
a49324f1 CY |
2106 | void add_ino_entry(struct f2fs_sb_info *, nid_t, int type); |
2107 | void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type); | |
74ef9241 | 2108 | void release_ino_entry(struct f2fs_sb_info *, bool); |
fff04f90 | 2109 | bool exist_written_data(struct f2fs_sb_info *, nid_t, int); |
0f18b462 | 2110 | int f2fs_sync_inode_meta(struct f2fs_sb_info *); |
cbd56e7d JK |
2111 | int acquire_orphan_inode(struct f2fs_sb_info *); |
2112 | void release_orphan_inode(struct f2fs_sb_info *); | |
67c3758d | 2113 | void add_orphan_inode(struct inode *); |
39a53e0c | 2114 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); |
8c14bfad | 2115 | int recover_orphan_inodes(struct f2fs_sb_info *); |
39a53e0c | 2116 | int get_valid_checkpoint(struct f2fs_sb_info *); |
a7ffdbe2 | 2117 | void update_dirty_page(struct inode *, struct page *); |
c227f912 | 2118 | void remove_dirty_inode(struct inode *); |
6d5a1495 | 2119 | int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type); |
c34f42e2 | 2120 | int write_checkpoint(struct f2fs_sb_info *, struct cp_control *); |
6451e041 | 2121 | void init_ino_entry_info(struct f2fs_sb_info *); |
6e6093a8 | 2122 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
2123 | void destroy_checkpoint_caches(void); |
2124 | ||
2125 | /* | |
2126 | * data.c | |
2127 | */ | |
458e6197 | 2128 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
0c3a5797 CY |
2129 | void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *, |
2130 | struct page *, nid_t, enum page_type, int); | |
406657dd | 2131 | void f2fs_flush_merged_bios(struct f2fs_sb_info *); |
05ca3632 JK |
2132 | int f2fs_submit_page_bio(struct f2fs_io_info *); |
2133 | void f2fs_submit_page_mbio(struct f2fs_io_info *); | |
216a620a | 2134 | void set_data_blkaddr(struct dnode_of_data *); |
f28b3434 | 2135 | void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t); |
46008c6d | 2136 | int reserve_new_blocks(struct dnode_of_data *, blkcnt_t); |
39a53e0c | 2137 | int reserve_new_block(struct dnode_of_data *); |
759af1c9 | 2138 | int f2fs_get_block(struct dnode_of_data *, pgoff_t); |
b439b103 | 2139 | ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *); |
b600965c | 2140 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
a56c7c6f | 2141 | struct page *get_read_data_page(struct inode *, pgoff_t, int, bool); |
43f3eae1 | 2142 | struct page *find_data_page(struct inode *, pgoff_t); |
a56c7c6f | 2143 | struct page *get_lock_data_page(struct inode *, pgoff_t, bool); |
64aa7ed9 | 2144 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
05ca3632 | 2145 | int do_write_data_page(struct f2fs_io_info *); |
d323d005 | 2146 | int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int); |
9ab70134 | 2147 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
fe76b796 | 2148 | void f2fs_set_page_dirty_nobuffers(struct page *); |
487261f3 CY |
2149 | void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); |
2150 | int f2fs_release_page(struct page *, gfp_t); | |
5b7a487c WG |
2151 | #ifdef CONFIG_MIGRATION |
2152 | int f2fs_migrate_page(struct address_space *, struct page *, struct page *, | |
2153 | enum migrate_mode); | |
2154 | #endif | |
39a53e0c JK |
2155 | |
2156 | /* | |
2157 | * gc.c | |
2158 | */ | |
2159 | int start_gc_thread(struct f2fs_sb_info *); | |
2160 | void stop_gc_thread(struct f2fs_sb_info *); | |
81ca7350 | 2161 | block_t start_bidx_of_node(unsigned int, struct inode *); |
d530d4d8 | 2162 | int f2fs_gc(struct f2fs_sb_info *, bool); |
39a53e0c | 2163 | void build_gc_manager(struct f2fs_sb_info *); |
39a53e0c JK |
2164 | |
2165 | /* | |
2166 | * recovery.c | |
2167 | */ | |
6781eabb | 2168 | int recover_fsync_data(struct f2fs_sb_info *, bool); |
39a53e0c JK |
2169 | bool space_for_roll_forward(struct f2fs_sb_info *); |
2170 | ||
2171 | /* | |
2172 | * debug.c | |
2173 | */ | |
2174 | #ifdef CONFIG_F2FS_STAT_FS | |
2175 | struct f2fs_stat_info { | |
2176 | struct list_head stat_list; | |
2177 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
2178 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
2179 | int main_area_segs, main_area_sections, main_area_zones; | |
5b7ee374 CY |
2180 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
2181 | unsigned long long hit_total, total_ext; | |
c00ba554 | 2182 | int ext_tree, zombie_tree, ext_node; |
5bc994a0 CY |
2183 | s64 ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta; |
2184 | s64 inmem_pages; | |
0f18b462 | 2185 | unsigned int ndirty_dirs, ndirty_files, ndirty_all; |
dd4e4b59 | 2186 | int nats, dirty_nats, sits, dirty_sits, fnids; |
39a53e0c | 2187 | int total_count, utilization; |
523be8a6 | 2188 | int bg_gc, wb_bios; |
652be551 | 2189 | int inline_xattr, inline_inode, inline_dir, orphans; |
f83a2584 | 2190 | unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; |
39a53e0c JK |
2191 | unsigned int bimodal, avg_vblocks; |
2192 | int util_free, util_valid, util_invalid; | |
2193 | int rsvd_segs, overp_segs; | |
2194 | int dirty_count, node_pages, meta_pages; | |
42190d2a | 2195 | int prefree_count, call_count, cp_count, bg_cp_count; |
39a53e0c | 2196 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 2197 | int bg_node_segs, bg_data_segs; |
39a53e0c | 2198 | int tot_blks, data_blks, node_blks; |
e1235983 | 2199 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
2200 | int curseg[NR_CURSEG_TYPE]; |
2201 | int cursec[NR_CURSEG_TYPE]; | |
2202 | int curzone[NR_CURSEG_TYPE]; | |
2203 | ||
2204 | unsigned int segment_count[2]; | |
2205 | unsigned int block_count[2]; | |
b9a2c252 | 2206 | unsigned int inplace_count; |
9edcdabf | 2207 | unsigned long long base_mem, cache_mem, page_mem; |
39a53e0c JK |
2208 | }; |
2209 | ||
963d4f7d GZ |
2210 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
2211 | { | |
6c311ec6 | 2212 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
2213 | } |
2214 | ||
942e0be6 | 2215 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
42190d2a | 2216 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
dcdfff65 JK |
2217 | #define stat_inc_call_count(si) ((si)->call_count++) |
2218 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
33fbd510 CY |
2219 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
2220 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) | |
5b7ee374 CY |
2221 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
2222 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
2223 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
2224 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
d5e8f6c9 CY |
2225 | #define stat_inc_inline_xattr(inode) \ |
2226 | do { \ | |
2227 | if (f2fs_has_inline_xattr(inode)) \ | |
2228 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2229 | } while (0) | |
2230 | #define stat_dec_inline_xattr(inode) \ | |
2231 | do { \ | |
2232 | if (f2fs_has_inline_xattr(inode)) \ | |
2233 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2234 | } while (0) | |
0dbdc2ae JK |
2235 | #define stat_inc_inline_inode(inode) \ |
2236 | do { \ | |
2237 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2238 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
2239 | } while (0) |
2240 | #define stat_dec_inline_inode(inode) \ | |
2241 | do { \ | |
2242 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2243 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 2244 | } while (0) |
3289c061 JK |
2245 | #define stat_inc_inline_dir(inode) \ |
2246 | do { \ | |
2247 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2248 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
2249 | } while (0) |
2250 | #define stat_dec_inline_dir(inode) \ | |
2251 | do { \ | |
2252 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2253 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 2254 | } while (0) |
dcdfff65 JK |
2255 | #define stat_inc_seg_type(sbi, curseg) \ |
2256 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
2257 | #define stat_inc_block_count(sbi, curseg) \ | |
2258 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
2259 | #define stat_inc_inplace_blocks(sbi) \ |
2260 | (atomic_inc(&(sbi)->inplace_count)) | |
e1235983 | 2261 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 2262 | do { \ |
963d4f7d | 2263 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c | 2264 | (si)->tot_segs++; \ |
e1235983 | 2265 | if (type == SUM_TYPE_DATA) { \ |
39a53e0c | 2266 | si->data_segs++; \ |
e1235983 CL |
2267 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2268 | } else { \ | |
39a53e0c | 2269 | si->node_segs++; \ |
e1235983 CL |
2270 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2271 | } \ | |
39a53e0c JK |
2272 | } while (0) |
2273 | ||
2274 | #define stat_inc_tot_blk_count(si, blks) \ | |
2275 | (si->tot_blks += (blks)) | |
2276 | ||
e1235983 | 2277 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2278 | do { \ |
963d4f7d | 2279 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2280 | stat_inc_tot_blk_count(si, blks); \ |
2281 | si->data_blks += (blks); \ | |
e1235983 | 2282 | si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2283 | } while (0) |
2284 | ||
e1235983 | 2285 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2286 | do { \ |
963d4f7d | 2287 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2288 | stat_inc_tot_blk_count(si, blks); \ |
2289 | si->node_blks += (blks); \ | |
e1235983 | 2290 | si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2291 | } while (0) |
2292 | ||
2293 | int f2fs_build_stats(struct f2fs_sb_info *); | |
2294 | void f2fs_destroy_stats(struct f2fs_sb_info *); | |
787c7b8c | 2295 | int __init f2fs_create_root_stats(void); |
4589d25d | 2296 | void f2fs_destroy_root_stats(void); |
39a53e0c | 2297 | #else |
942e0be6 | 2298 | #define stat_inc_cp_count(si) |
42190d2a | 2299 | #define stat_inc_bg_cp_count(si) |
39a53e0c | 2300 | #define stat_inc_call_count(si) |
dcdfff65 | 2301 | #define stat_inc_bggc_count(si) |
33fbd510 CY |
2302 | #define stat_inc_dirty_inode(sbi, type) |
2303 | #define stat_dec_dirty_inode(sbi, type) | |
dcdfff65 | 2304 | #define stat_inc_total_hit(sb) |
029e13cc | 2305 | #define stat_inc_rbtree_node_hit(sb) |
91c481ff CY |
2306 | #define stat_inc_largest_node_hit(sbi) |
2307 | #define stat_inc_cached_node_hit(sbi) | |
d5e8f6c9 CY |
2308 | #define stat_inc_inline_xattr(inode) |
2309 | #define stat_dec_inline_xattr(inode) | |
0dbdc2ae JK |
2310 | #define stat_inc_inline_inode(inode) |
2311 | #define stat_dec_inline_inode(inode) | |
3289c061 JK |
2312 | #define stat_inc_inline_dir(inode) |
2313 | #define stat_dec_inline_dir(inode) | |
dcdfff65 JK |
2314 | #define stat_inc_seg_type(sbi, curseg) |
2315 | #define stat_inc_block_count(sbi, curseg) | |
b9a2c252 | 2316 | #define stat_inc_inplace_blocks(sbi) |
e1235983 | 2317 | #define stat_inc_seg_count(sbi, type, gc_type) |
39a53e0c | 2318 | #define stat_inc_tot_blk_count(si, blks) |
e1235983 CL |
2319 | #define stat_inc_data_blk_count(sbi, blks, gc_type) |
2320 | #define stat_inc_node_blk_count(sbi, blks, gc_type) | |
39a53e0c JK |
2321 | |
2322 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
2323 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
787c7b8c | 2324 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
4589d25d | 2325 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
2326 | #endif |
2327 | ||
2328 | extern const struct file_operations f2fs_dir_operations; | |
2329 | extern const struct file_operations f2fs_file_operations; | |
2330 | extern const struct inode_operations f2fs_file_inode_operations; | |
2331 | extern const struct address_space_operations f2fs_dblock_aops; | |
2332 | extern const struct address_space_operations f2fs_node_aops; | |
2333 | extern const struct address_space_operations f2fs_meta_aops; | |
2334 | extern const struct inode_operations f2fs_dir_inode_operations; | |
2335 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
cbaf042a | 2336 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
39a53e0c | 2337 | extern const struct inode_operations f2fs_special_inode_operations; |
29e7043f | 2338 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 2339 | |
e18c65b2 HL |
2340 | /* |
2341 | * inline.c | |
2342 | */ | |
01b960e9 JK |
2343 | bool f2fs_may_inline_data(struct inode *); |
2344 | bool f2fs_may_inline_dentry(struct inode *); | |
b3d208f9 | 2345 | void read_inline_data(struct page *, struct page *); |
0bfcfcca | 2346 | bool truncate_inline_inode(struct page *, u64); |
e18c65b2 | 2347 | int f2fs_read_inline_data(struct inode *, struct page *); |
b3d208f9 JK |
2348 | int f2fs_convert_inline_page(struct dnode_of_data *, struct page *); |
2349 | int f2fs_convert_inline_inode(struct inode *); | |
2350 | int f2fs_write_inline_data(struct inode *, struct page *); | |
0342fd30 | 2351 | bool recover_inline_data(struct inode *, struct page *); |
6e22c691 | 2352 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *, |
0b81d077 | 2353 | struct fscrypt_name *, struct page **); |
201a05be | 2354 | int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); |
9421d570 CY |
2355 | int f2fs_add_inline_entry(struct inode *, const struct qstr *, |
2356 | const struct qstr *, struct inode *, nid_t, umode_t); | |
201a05be CY |
2357 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, |
2358 | struct inode *, struct inode *); | |
2359 | bool f2fs_empty_inline_dir(struct inode *); | |
d8c6822a | 2360 | int f2fs_read_inline_dir(struct file *, struct dir_context *, |
0b81d077 | 2361 | struct fscrypt_str *); |
67f8cf3c JK |
2362 | int f2fs_inline_data_fiemap(struct inode *, |
2363 | struct fiemap_extent_info *, __u64, __u64); | |
cde4de12 | 2364 | |
2658e50d JK |
2365 | /* |
2366 | * shrinker.c | |
2367 | */ | |
2368 | unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *); | |
2369 | unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *); | |
2370 | void f2fs_join_shrinker(struct f2fs_sb_info *); | |
2371 | void f2fs_leave_shrinker(struct f2fs_sb_info *); | |
2372 | ||
a28ef1f5 CY |
2373 | /* |
2374 | * extent_cache.c | |
2375 | */ | |
2376 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); | |
ed3d1256 | 2377 | bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); |
5f281fab | 2378 | void f2fs_drop_extent_tree(struct inode *); |
a28ef1f5 CY |
2379 | unsigned int f2fs_destroy_extent_node(struct inode *); |
2380 | void f2fs_destroy_extent_tree(struct inode *); | |
2381 | bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *); | |
2382 | void f2fs_update_extent_cache(struct dnode_of_data *); | |
19b2c30d CY |
2383 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
2384 | pgoff_t, block_t, unsigned int); | |
a28ef1f5 CY |
2385 | void init_extent_cache_info(struct f2fs_sb_info *); |
2386 | int __init create_extent_cache(void); | |
2387 | void destroy_extent_cache(void); | |
2388 | ||
cde4de12 JK |
2389 | /* |
2390 | * crypto support | |
2391 | */ | |
0b81d077 | 2392 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
cde4de12 | 2393 | { |
cde4de12 | 2394 | return file_is_encrypt(inode); |
cde4de12 JK |
2395 | } |
2396 | ||
2397 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
2398 | { | |
2399 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2400 | file_set_encrypt(inode); | |
2401 | #endif | |
2402 | } | |
2403 | ||
2404 | static inline bool f2fs_bio_encrypted(struct bio *bio) | |
2405 | { | |
0b81d077 | 2406 | return bio->bi_private != NULL; |
cde4de12 JK |
2407 | } |
2408 | ||
2409 | static inline int f2fs_sb_has_crypto(struct super_block *sb) | |
2410 | { | |
cde4de12 | 2411 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
cde4de12 | 2412 | } |
f424f664 | 2413 | |
52763a4b JK |
2414 | static inline int f2fs_sb_mounted_hmsmr(struct super_block *sb) |
2415 | { | |
2416 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_HMSMR); | |
2417 | } | |
2418 | ||
2419 | static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) | |
2420 | { | |
2421 | clear_opt(sbi, ADAPTIVE); | |
2422 | clear_opt(sbi, LFS); | |
2423 | ||
2424 | switch (mt) { | |
2425 | case F2FS_MOUNT_ADAPTIVE: | |
2426 | set_opt(sbi, ADAPTIVE); | |
2427 | break; | |
2428 | case F2FS_MOUNT_LFS: | |
2429 | set_opt(sbi, LFS); | |
2430 | break; | |
2431 | } | |
2432 | } | |
2433 | ||
fcc85a4d JK |
2434 | static inline bool f2fs_may_encrypt(struct inode *inode) |
2435 | { | |
2436 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
886f56f9 | 2437 | umode_t mode = inode->i_mode; |
fcc85a4d JK |
2438 | |
2439 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
2440 | #else | |
2441 | return 0; | |
2442 | #endif | |
2443 | } | |
2444 | ||
0b81d077 JK |
2445 | #ifndef CONFIG_F2FS_FS_ENCRYPTION |
2446 | #define fscrypt_set_d_op(i) | |
2447 | #define fscrypt_get_ctx fscrypt_notsupp_get_ctx | |
2448 | #define fscrypt_release_ctx fscrypt_notsupp_release_ctx | |
2449 | #define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page | |
2450 | #define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page | |
2451 | #define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages | |
2452 | #define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page | |
2453 | #define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page | |
2454 | #define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range | |
2455 | #define fscrypt_process_policy fscrypt_notsupp_process_policy | |
2456 | #define fscrypt_get_policy fscrypt_notsupp_get_policy | |
2457 | #define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context | |
2458 | #define fscrypt_inherit_context fscrypt_notsupp_inherit_context | |
2459 | #define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info | |
2460 | #define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info | |
2461 | #define fscrypt_setup_filename fscrypt_notsupp_setup_filename | |
2462 | #define fscrypt_free_filename fscrypt_notsupp_free_filename | |
2463 | #define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size | |
2464 | #define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer | |
2465 | #define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer | |
2466 | #define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr | |
2467 | #define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk | |
57e5055b | 2468 | #endif |
39a53e0c | 2469 | #endif |