Commit | Line | Data |
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0a8165d7 | 1 | /* |
39a53e0c JK |
2 | * fs/f2fs/f2fs.h |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #ifndef _LINUX_F2FS_H | |
12 | #define _LINUX_F2FS_H | |
13 | ||
14 | #include <linux/types.h> | |
15 | #include <linux/page-flags.h> | |
16 | #include <linux/buffer_head.h> | |
39a53e0c JK |
17 | #include <linux/slab.h> |
18 | #include <linux/crc32.h> | |
19 | #include <linux/magic.h> | |
c2d715d1 | 20 | #include <linux/kobject.h> |
7bd59381 | 21 | #include <linux/sched.h> |
39a53e0c | 22 | |
5d56b671 | 23 | #ifdef CONFIG_F2FS_CHECK_FS |
9850cf4a | 24 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) |
0daaad97 | 25 | #define f2fs_down_write(x, y) down_write_nest_lock(x, y) |
5d56b671 | 26 | #else |
9850cf4a JK |
27 | #define f2fs_bug_on(sbi, condition) \ |
28 | do { \ | |
29 | if (unlikely(condition)) { \ | |
30 | WARN_ON(1); \ | |
caf0047e | 31 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ |
9850cf4a JK |
32 | } \ |
33 | } while (0) | |
0daaad97 | 34 | #define f2fs_down_write(x, y) down_write(x) |
5d56b671 JK |
35 | #endif |
36 | ||
39a53e0c JK |
37 | /* |
38 | * For mount options | |
39 | */ | |
40 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
41 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
42 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
43 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
44 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
45 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
46 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 47 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 48 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
34d67deb CY |
49 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
50 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
51 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
d5053a34 | 52 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
89672159 | 53 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
39a53e0c JK |
54 | |
55 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) | |
56 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) | |
57 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) | |
58 | ||
59 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
60 | typecheck(unsigned long long, b) && \ | |
61 | ((long long)((a) - (b)) > 0)) | |
62 | ||
a9841c4d JK |
63 | typedef u32 block_t; /* |
64 | * should not change u32, since it is the on-disk block | |
65 | * address format, __le32. | |
66 | */ | |
39a53e0c JK |
67 | typedef u32 nid_t; |
68 | ||
69 | struct f2fs_mount_info { | |
70 | unsigned int opt; | |
71 | }; | |
72 | ||
76f105a2 JK |
73 | #define F2FS_HAS_FEATURE(sb, mask) \ |
74 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) | |
75 | #define F2FS_SET_FEATURE(sb, mask) \ | |
76 | F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask) | |
77 | #define F2FS_CLEAR_FEATURE(sb, mask) \ | |
78 | F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) | |
79 | ||
7e586fa0 JK |
80 | #define CRCPOLY_LE 0xedb88320 |
81 | ||
82 | static inline __u32 f2fs_crc32(void *buf, size_t len) | |
39a53e0c | 83 | { |
7e586fa0 JK |
84 | unsigned char *p = (unsigned char *)buf; |
85 | __u32 crc = F2FS_SUPER_MAGIC; | |
86 | int i; | |
87 | ||
88 | while (len--) { | |
89 | crc ^= *p++; | |
90 | for (i = 0; i < 8; i++) | |
91 | crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0); | |
92 | } | |
93 | return crc; | |
39a53e0c JK |
94 | } |
95 | ||
7e586fa0 | 96 | static inline bool f2fs_crc_valid(__u32 blk_crc, void *buf, size_t buf_size) |
39a53e0c | 97 | { |
7e586fa0 | 98 | return f2fs_crc32(buf, buf_size) == blk_crc; |
39a53e0c JK |
99 | } |
100 | ||
101 | /* | |
102 | * For checkpoint manager | |
103 | */ | |
104 | enum { | |
105 | NAT_BITMAP, | |
106 | SIT_BITMAP | |
107 | }; | |
108 | ||
75ab4cb8 JK |
109 | enum { |
110 | CP_UMOUNT, | |
119ee914 | 111 | CP_FASTBOOT, |
75ab4cb8 | 112 | CP_SYNC, |
10027551 | 113 | CP_RECOVERY, |
4b2fecc8 | 114 | CP_DISCARD, |
75ab4cb8 JK |
115 | }; |
116 | ||
bba681cb JK |
117 | #define DEF_BATCHED_TRIM_SECTIONS 32 |
118 | #define BATCHED_TRIM_SEGMENTS(sbi) \ | |
119 | (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) | |
a66cdd98 JK |
120 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
121 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
bba681cb | 122 | |
75ab4cb8 JK |
123 | struct cp_control { |
124 | int reason; | |
4b2fecc8 JK |
125 | __u64 trim_start; |
126 | __u64 trim_end; | |
127 | __u64 trim_minlen; | |
128 | __u64 trimmed; | |
75ab4cb8 JK |
129 | }; |
130 | ||
662befda | 131 | /* |
81c1a0f1 | 132 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
133 | */ |
134 | enum { | |
135 | META_CP, | |
136 | META_NAT, | |
81c1a0f1 | 137 | META_SIT, |
4c521f49 JK |
138 | META_SSA, |
139 | META_POR, | |
662befda CY |
140 | }; |
141 | ||
6451e041 JK |
142 | /* for the list of ino */ |
143 | enum { | |
144 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
145 | APPEND_INO, /* for append ino list */ |
146 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
147 | MAX_INO_ENTRY, /* max. list */ |
148 | }; | |
149 | ||
150 | struct ino_entry { | |
39a53e0c JK |
151 | struct list_head list; /* list head */ |
152 | nid_t ino; /* inode number */ | |
153 | }; | |
154 | ||
06292073 CY |
155 | /* |
156 | * for the list of directory inodes or gc inodes. | |
157 | * NOTE: there are two slab users for this structure, if we add/modify/delete | |
158 | * fields in structure for one of slab users, it may affect fields or size of | |
159 | * other one, in this condition, it's better to split both of slab and related | |
160 | * data structure. | |
161 | */ | |
162 | struct inode_entry { | |
39a53e0c JK |
163 | struct list_head list; /* list head */ |
164 | struct inode *inode; /* vfs inode pointer */ | |
165 | }; | |
166 | ||
7fd9e544 JK |
167 | /* for the list of blockaddresses to be discarded */ |
168 | struct discard_entry { | |
169 | struct list_head list; /* list head */ | |
170 | block_t blkaddr; /* block address to be discarded */ | |
171 | int len; /* # of consecutive blocks of the discard */ | |
172 | }; | |
173 | ||
39a53e0c JK |
174 | /* for the list of fsync inodes, used only during recovery */ |
175 | struct fsync_inode_entry { | |
176 | struct list_head list; /* list head */ | |
177 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
178 | block_t blkaddr; /* block address locating the last fsync */ |
179 | block_t last_dentry; /* block address locating the last dentry */ | |
180 | block_t last_inode; /* block address locating the last inode */ | |
39a53e0c JK |
181 | }; |
182 | ||
183 | #define nats_in_cursum(sum) (le16_to_cpu(sum->n_nats)) | |
184 | #define sits_in_cursum(sum) (le16_to_cpu(sum->n_sits)) | |
185 | ||
186 | #define nat_in_journal(sum, i) (sum->nat_j.entries[i].ne) | |
187 | #define nid_in_journal(sum, i) (sum->nat_j.entries[i].nid) | |
188 | #define sit_in_journal(sum, i) (sum->sit_j.entries[i].se) | |
189 | #define segno_in_journal(sum, i) (sum->sit_j.entries[i].segno) | |
190 | ||
309cc2b6 JK |
191 | #define MAX_NAT_JENTRIES(sum) (NAT_JOURNAL_ENTRIES - nats_in_cursum(sum)) |
192 | #define MAX_SIT_JENTRIES(sum) (SIT_JOURNAL_ENTRIES - sits_in_cursum(sum)) | |
193 | ||
39a53e0c JK |
194 | static inline int update_nats_in_cursum(struct f2fs_summary_block *rs, int i) |
195 | { | |
196 | int before = nats_in_cursum(rs); | |
197 | rs->n_nats = cpu_to_le16(before + i); | |
198 | return before; | |
199 | } | |
200 | ||
201 | static inline int update_sits_in_cursum(struct f2fs_summary_block *rs, int i) | |
202 | { | |
203 | int before = sits_in_cursum(rs); | |
204 | rs->n_sits = cpu_to_le16(before + i); | |
205 | return before; | |
206 | } | |
207 | ||
184a5cd2 CY |
208 | static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size, |
209 | int type) | |
210 | { | |
211 | if (type == NAT_JOURNAL) | |
309cc2b6 JK |
212 | return size <= MAX_NAT_JENTRIES(sum); |
213 | return size <= MAX_SIT_JENTRIES(sum); | |
184a5cd2 CY |
214 | } |
215 | ||
e9750824 NJ |
216 | /* |
217 | * ioctl commands | |
218 | */ | |
88b88a66 JK |
219 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
220 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 221 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
222 | |
223 | #define F2FS_IOCTL_MAGIC 0xf5 | |
224 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
225 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 226 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
227 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
228 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
e9750824 | 229 | |
1abff93d JK |
230 | /* |
231 | * should be same as XFS_IOC_GOINGDOWN. | |
232 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
233 | */ | |
234 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
235 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
236 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
237 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
238 | ||
e9750824 NJ |
239 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
240 | /* | |
241 | * ioctl commands in 32 bit emulation | |
242 | */ | |
243 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS | |
244 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
245 | #endif | |
246 | ||
39a53e0c JK |
247 | /* |
248 | * For INODE and NODE manager | |
249 | */ | |
7b3cd7d6 JK |
250 | /* for directory operations */ |
251 | struct f2fs_dentry_ptr { | |
252 | const void *bitmap; | |
253 | struct f2fs_dir_entry *dentry; | |
254 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
255 | int max; | |
256 | }; | |
257 | ||
258 | static inline void make_dentry_ptr(struct f2fs_dentry_ptr *d, | |
259 | void *src, int type) | |
260 | { | |
261 | if (type == 1) { | |
262 | struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src; | |
263 | d->max = NR_DENTRY_IN_BLOCK; | |
264 | d->bitmap = &t->dentry_bitmap; | |
265 | d->dentry = t->dentry; | |
266 | d->filename = t->filename; | |
267 | } else { | |
268 | struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src; | |
269 | d->max = NR_INLINE_DENTRY; | |
270 | d->bitmap = &t->dentry_bitmap; | |
271 | d->dentry = t->dentry; | |
272 | d->filename = t->filename; | |
273 | } | |
274 | } | |
275 | ||
dbe6a5ff JK |
276 | /* |
277 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
278 | * as its node offset to distinguish from index node blocks. | |
279 | * But some bits are used to mark the node block. | |
280 | */ | |
281 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
282 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
283 | enum { |
284 | ALLOC_NODE, /* allocate a new node page if needed */ | |
285 | LOOKUP_NODE, /* look up a node without readahead */ | |
286 | LOOKUP_NODE_RA, /* | |
287 | * look up a node with readahead called | |
4f4124d0 | 288 | * by get_data_block. |
39a53e0c | 289 | */ |
266e97a8 JK |
290 | }; |
291 | ||
39a53e0c JK |
292 | #define F2FS_LINK_MAX 32000 /* maximum link count per file */ |
293 | ||
817202d9 CY |
294 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
295 | ||
13054c54 CY |
296 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
297 | #define EXT_TREE_VEC_SIZE 64 | |
298 | ||
39a53e0c | 299 | /* for in-memory extent cache entry */ |
13054c54 CY |
300 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
301 | ||
302 | /* number of extent info in extent cache we try to shrink */ | |
303 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 304 | |
39a53e0c | 305 | struct extent_info { |
13054c54 CY |
306 | unsigned int fofs; /* start offset in a file */ |
307 | u32 blk; /* start block address of the extent */ | |
308 | unsigned int len; /* length of the extent */ | |
309 | }; | |
310 | ||
311 | struct extent_node { | |
312 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
313 | struct list_head list; /* node in global extent list of sbi */ | |
314 | struct extent_info ei; /* extent info */ | |
315 | }; | |
316 | ||
317 | struct extent_tree { | |
318 | nid_t ino; /* inode number */ | |
319 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 320 | struct extent_node *cached_en; /* recently accessed extent node */ |
13054c54 CY |
321 | rwlock_t lock; /* protect extent info rb-tree */ |
322 | atomic_t refcount; /* reference count of rb-tree */ | |
323 | unsigned int count; /* # of extent node in rb-tree*/ | |
39a53e0c JK |
324 | }; |
325 | ||
003a3e1d JK |
326 | /* |
327 | * This structure is taken from ext4_map_blocks. | |
328 | * | |
329 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
330 | */ | |
331 | #define F2FS_MAP_NEW (1 << BH_New) | |
332 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
333 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED) | |
334 | ||
335 | struct f2fs_map_blocks { | |
336 | block_t m_pblk; | |
337 | block_t m_lblk; | |
338 | unsigned int m_len; | |
339 | unsigned int m_flags; | |
340 | }; | |
341 | ||
39a53e0c JK |
342 | /* |
343 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
344 | */ | |
345 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 346 | #define FADVISE_LOST_PINO_BIT 0x02 |
39a53e0c | 347 | |
b5492af7 JK |
348 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
349 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
350 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
351 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
352 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
353 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
354 | ||
ab9fa662 JK |
355 | #define DEF_DIR_LEVEL 0 |
356 | ||
39a53e0c JK |
357 | struct f2fs_inode_info { |
358 | struct inode vfs_inode; /* serve a vfs inode */ | |
359 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
360 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 361 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 362 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 363 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
364 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
365 | ||
366 | /* Use below internally in f2fs*/ | |
367 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 368 | struct rw_semaphore i_sem; /* protect fi info */ |
a7ffdbe2 | 369 | atomic_t dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
370 | f2fs_hash_t chash; /* hash value of given file name */ |
371 | unsigned int clevel; /* maximum level of given file name */ | |
372 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
e518ff81 | 373 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
39a53e0c | 374 | struct extent_info ext; /* in-memory extent cache entry */ |
0c872e2d | 375 | rwlock_t ext_lock; /* rwlock for single extent cache */ |
06292073 | 376 | struct inode_entry *dirty_dir; /* the pointer of dirty dir */ |
88b88a66 | 377 | |
34ba94ba | 378 | struct radix_tree_root inmem_root; /* radix tree for inmem pages */ |
88b88a66 JK |
379 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
380 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
39a53e0c JK |
381 | }; |
382 | ||
383 | static inline void get_extent_info(struct extent_info *ext, | |
384 | struct f2fs_extent i_ext) | |
385 | { | |
39a53e0c | 386 | ext->fofs = le32_to_cpu(i_ext.fofs); |
4d0b0bd4 | 387 | ext->blk = le32_to_cpu(i_ext.blk); |
39a53e0c | 388 | ext->len = le32_to_cpu(i_ext.len); |
39a53e0c JK |
389 | } |
390 | ||
391 | static inline void set_raw_extent(struct extent_info *ext, | |
392 | struct f2fs_extent *i_ext) | |
393 | { | |
39a53e0c | 394 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 395 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 396 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
397 | } |
398 | ||
429511cd CY |
399 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
400 | u32 blk, unsigned int len) | |
401 | { | |
402 | ei->fofs = fofs; | |
403 | ei->blk = blk; | |
404 | ei->len = len; | |
405 | } | |
406 | ||
0bdee482 CY |
407 | static inline bool __is_extent_same(struct extent_info *ei1, |
408 | struct extent_info *ei2) | |
409 | { | |
410 | return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && | |
411 | ei1->len == ei2->len); | |
412 | } | |
413 | ||
429511cd CY |
414 | static inline bool __is_extent_mergeable(struct extent_info *back, |
415 | struct extent_info *front) | |
416 | { | |
417 | return (back->fofs + back->len == front->fofs && | |
418 | back->blk + back->len == front->blk); | |
419 | } | |
420 | ||
421 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
422 | struct extent_info *back) | |
423 | { | |
424 | return __is_extent_mergeable(back, cur); | |
425 | } | |
426 | ||
427 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
428 | struct extent_info *front) | |
429 | { | |
430 | return __is_extent_mergeable(cur, front); | |
431 | } | |
432 | ||
39a53e0c JK |
433 | struct f2fs_nm_info { |
434 | block_t nat_blkaddr; /* base disk address of NAT */ | |
435 | nid_t max_nid; /* maximum possible node ids */ | |
7ee0eeab | 436 | nid_t available_nids; /* maximum available node ids */ |
39a53e0c | 437 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 438 | unsigned int ram_thresh; /* control the memory footprint */ |
39a53e0c JK |
439 | |
440 | /* NAT cache management */ | |
441 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 442 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
8b26ef98 | 443 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 444 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 445 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 446 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
39a53e0c JK |
447 | |
448 | /* free node ids management */ | |
8a7ed66a | 449 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
39a53e0c JK |
450 | struct list_head free_nid_list; /* a list for free nids */ |
451 | spinlock_t free_nid_list_lock; /* protect free nid list */ | |
452 | unsigned int fcnt; /* the number of free node id */ | |
453 | struct mutex build_lock; /* lock for build free nids */ | |
454 | ||
455 | /* for checkpoint */ | |
456 | char *nat_bitmap; /* NAT bitmap pointer */ | |
457 | int bitmap_size; /* bitmap size */ | |
458 | }; | |
459 | ||
460 | /* | |
461 | * this structure is used as one of function parameters. | |
462 | * all the information are dedicated to a given direct node block determined | |
463 | * by the data offset in a file. | |
464 | */ | |
465 | struct dnode_of_data { | |
466 | struct inode *inode; /* vfs inode pointer */ | |
467 | struct page *inode_page; /* its inode page, NULL is possible */ | |
468 | struct page *node_page; /* cached direct node page */ | |
469 | nid_t nid; /* node id of the direct node block */ | |
470 | unsigned int ofs_in_node; /* data offset in the node page */ | |
471 | bool inode_page_locked; /* inode page is locked or not */ | |
472 | block_t data_blkaddr; /* block address of the node block */ | |
473 | }; | |
474 | ||
475 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
476 | struct page *ipage, struct page *npage, nid_t nid) | |
477 | { | |
d66d1f76 | 478 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
479 | dn->inode = inode; |
480 | dn->inode_page = ipage; | |
481 | dn->node_page = npage; | |
482 | dn->nid = nid; | |
39a53e0c JK |
483 | } |
484 | ||
485 | /* | |
486 | * For SIT manager | |
487 | * | |
488 | * By default, there are 6 active log areas across the whole main area. | |
489 | * When considering hot and cold data separation to reduce cleaning overhead, | |
490 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
491 | * respectively. | |
492 | * In the current design, you should not change the numbers intentionally. | |
493 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
494 | * logs individually according to the underlying devices. (default: 6) | |
495 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
496 | * data and 8 for node logs. | |
497 | */ | |
498 | #define NR_CURSEG_DATA_TYPE (3) | |
499 | #define NR_CURSEG_NODE_TYPE (3) | |
500 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
501 | ||
502 | enum { | |
503 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
504 | CURSEG_WARM_DATA, /* data blocks */ | |
505 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
506 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
507 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
508 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 JK |
509 | NO_CHECK_TYPE, |
510 | CURSEG_DIRECT_IO, /* to use for the direct IO path */ | |
39a53e0c JK |
511 | }; |
512 | ||
6b4afdd7 | 513 | struct flush_cmd { |
6b4afdd7 | 514 | struct completion wait; |
721bd4d5 | 515 | struct llist_node llnode; |
6b4afdd7 JK |
516 | int ret; |
517 | }; | |
518 | ||
a688b9d9 GZ |
519 | struct flush_cmd_control { |
520 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
521 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
721bd4d5 GZ |
522 | struct llist_head issue_list; /* list for command issue */ |
523 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
524 | }; |
525 | ||
39a53e0c JK |
526 | struct f2fs_sm_info { |
527 | struct sit_info *sit_info; /* whole segment information */ | |
528 | struct free_segmap_info *free_info; /* free segment information */ | |
529 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
530 | struct curseg_info *curseg_array; /* active segment information */ | |
531 | ||
39a53e0c JK |
532 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
533 | block_t main_blkaddr; /* start block address of main area */ | |
534 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
535 | ||
536 | unsigned int segment_count; /* total # of segments */ | |
537 | unsigned int main_segments; /* # of segments in main area */ | |
538 | unsigned int reserved_segments; /* # of reserved segments */ | |
539 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
540 | |
541 | /* a threshold to reclaim prefree segments */ | |
542 | unsigned int rec_prefree_segments; | |
7fd9e544 JK |
543 | |
544 | /* for small discard management */ | |
545 | struct list_head discard_list; /* 4KB discard list */ | |
546 | int nr_discards; /* # of discards in the list */ | |
547 | int max_discards; /* max. discards to be issued */ | |
216fbd64 | 548 | |
bba681cb JK |
549 | /* for batched trimming */ |
550 | unsigned int trim_sections; /* # of sections to trim */ | |
551 | ||
184a5cd2 CY |
552 | struct list_head sit_entry_set; /* sit entry set list */ |
553 | ||
216fbd64 JK |
554 | unsigned int ipu_policy; /* in-place-update policy */ |
555 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 556 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
6b4afdd7 JK |
557 | |
558 | /* for flush command control */ | |
a688b9d9 GZ |
559 | struct flush_cmd_control *cmd_control_info; |
560 | ||
39a53e0c JK |
561 | }; |
562 | ||
39a53e0c JK |
563 | /* |
564 | * For superblock | |
565 | */ | |
566 | /* | |
567 | * COUNT_TYPE for monitoring | |
568 | * | |
569 | * f2fs monitors the number of several block types such as on-writeback, | |
570 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
571 | */ | |
572 | enum count_type { | |
573 | F2FS_WRITEBACK, | |
574 | F2FS_DIRTY_DENTS, | |
575 | F2FS_DIRTY_NODES, | |
576 | F2FS_DIRTY_META, | |
8dcf2ff7 | 577 | F2FS_INMEM_PAGES, |
39a53e0c JK |
578 | NR_COUNT_TYPE, |
579 | }; | |
580 | ||
39a53e0c | 581 | /* |
e1c42045 | 582 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
583 | * The available types are: |
584 | * DATA User data pages. It operates as async mode. | |
585 | * NODE Node pages. It operates as async mode. | |
586 | * META FS metadata pages such as SIT, NAT, CP. | |
587 | * NR_PAGE_TYPE The number of page types. | |
588 | * META_FLUSH Make sure the previous pages are written | |
589 | * with waiting the bio's completion | |
590 | * ... Only can be used with META. | |
591 | */ | |
7d5e5109 | 592 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
593 | enum page_type { |
594 | DATA, | |
595 | NODE, | |
596 | META, | |
597 | NR_PAGE_TYPE, | |
598 | META_FLUSH, | |
8ce67cb0 JK |
599 | INMEM, /* the below types are used by tracepoints only. */ |
600 | INMEM_DROP, | |
601 | IPU, | |
602 | OPU, | |
39a53e0c JK |
603 | }; |
604 | ||
458e6197 | 605 | struct f2fs_io_info { |
05ca3632 | 606 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 GZ |
607 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
608 | int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */ | |
cf04e8eb | 609 | block_t blk_addr; /* block address to be written */ |
05ca3632 | 610 | struct page *page; /* page to be written */ |
458e6197 JK |
611 | }; |
612 | ||
93dfe2ac | 613 | #define is_read_io(rw) (((rw) & 1) == READ) |
1ff7bd3b | 614 | struct f2fs_bio_info { |
458e6197 | 615 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
616 | struct bio *bio; /* bios to merge */ |
617 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 618 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 619 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
620 | }; |
621 | ||
67298804 CY |
622 | /* for inner inode cache management */ |
623 | struct inode_management { | |
624 | struct radix_tree_root ino_root; /* ino entry array */ | |
625 | spinlock_t ino_lock; /* for ino entry lock */ | |
626 | struct list_head ino_list; /* inode list head */ | |
627 | unsigned long ino_num; /* number of entries */ | |
628 | }; | |
629 | ||
caf0047e CY |
630 | /* For s_flag in struct f2fs_sb_info */ |
631 | enum { | |
632 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
633 | SBI_IS_CLOSE, /* specify unmounting */ | |
634 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
635 | SBI_POR_DOING, /* recovery is doing or not */ | |
636 | }; | |
637 | ||
39a53e0c JK |
638 | struct f2fs_sb_info { |
639 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 640 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c JK |
641 | struct buffer_head *raw_super_buf; /* buffer head of raw sb */ |
642 | struct f2fs_super_block *raw_super; /* raw super block pointer */ | |
caf0047e | 643 | int s_flag; /* flags for sbi */ |
39a53e0c JK |
644 | |
645 | /* for node-related operations */ | |
646 | struct f2fs_nm_info *nm_info; /* node manager */ | |
647 | struct inode *node_inode; /* cache node blocks */ | |
648 | ||
649 | /* for segment-related operations */ | |
650 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
651 | |
652 | /* for bio operations */ | |
924b720b | 653 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 654 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
39a53e0c JK |
655 | |
656 | /* for checkpoint */ | |
657 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
658 | struct inode *meta_inode; /* cache meta blocks */ | |
39936837 | 659 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
e479556b | 660 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 661 | struct rw_semaphore node_write; /* locking node writes */ |
5463e7c1 | 662 | struct mutex writepages; /* mutex for writepages() */ |
fb51b5ef | 663 | wait_queue_head_t cp_wait; |
39a53e0c | 664 | |
67298804 | 665 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
666 | |
667 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 668 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c JK |
669 | |
670 | /* for directory inode management */ | |
671 | struct list_head dir_inode_list; /* dir inode list */ | |
672 | spinlock_t dir_inode_lock; /* for dir inode list lock */ | |
39a53e0c | 673 | |
13054c54 CY |
674 | /* for extent tree cache */ |
675 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
676 | struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ | |
677 | struct list_head extent_list; /* lru list for shrinker */ | |
678 | spinlock_t extent_lock; /* locking extent lru list */ | |
679 | int total_ext_tree; /* extent tree count */ | |
680 | atomic_t total_ext_node; /* extent info count */ | |
681 | ||
e1c42045 | 682 | /* basic filesystem units */ |
39a53e0c JK |
683 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
684 | unsigned int log_blocksize; /* log2 block size */ | |
685 | unsigned int blocksize; /* block size */ | |
686 | unsigned int root_ino_num; /* root inode number*/ | |
687 | unsigned int node_ino_num; /* node inode number*/ | |
688 | unsigned int meta_ino_num; /* meta inode number*/ | |
689 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
690 | unsigned int blocks_per_seg; /* blocks per segment */ | |
691 | unsigned int segs_per_sec; /* segments per section */ | |
692 | unsigned int secs_per_zone; /* sections per zone */ | |
693 | unsigned int total_sections; /* total section count */ | |
694 | unsigned int total_node_count; /* total node block count */ | |
695 | unsigned int total_valid_node_count; /* valid node block count */ | |
696 | unsigned int total_valid_inode_count; /* valid inode count */ | |
697 | int active_logs; /* # of active logs */ | |
ab9fa662 | 698 | int dir_level; /* directory level */ |
39a53e0c JK |
699 | |
700 | block_t user_block_count; /* # of user blocks */ | |
701 | block_t total_valid_block_count; /* # of valid blocks */ | |
702 | block_t alloc_valid_block_count; /* # of allocated blocks */ | |
a66cdd98 | 703 | block_t discard_blks; /* discard command candidats */ |
39a53e0c JK |
704 | block_t last_valid_block_count; /* for recovery */ |
705 | u32 s_next_generation; /* for NFS support */ | |
706 | atomic_t nr_pages[NR_COUNT_TYPE]; /* # of pages, see count_type */ | |
707 | ||
708 | struct f2fs_mount_info mount_opt; /* mount options */ | |
709 | ||
710 | /* for cleaning operations */ | |
711 | struct mutex gc_mutex; /* mutex for GC */ | |
712 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 713 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 714 | |
b1c57c1c JK |
715 | /* maximum # of trials to find a victim segment for SSR and GC */ |
716 | unsigned int max_victim_search; | |
717 | ||
39a53e0c JK |
718 | /* |
719 | * for stat information. | |
720 | * one is for the LFS mode, and the other is for the SSR mode. | |
721 | */ | |
35b09d82 | 722 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
723 | struct f2fs_stat_info *stat_info; /* FS status information */ |
724 | unsigned int segment_count[2]; /* # of allocated segments */ | |
725 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 726 | atomic_t inplace_count; /* # of inplace update */ |
39a53e0c | 727 | int total_hit_ext, read_hit_ext; /* extent cache hit ratio */ |
03e14d52 CY |
728 | atomic_t inline_inode; /* # of inline_data inodes */ |
729 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
39a53e0c | 730 | int bg_gc; /* background gc calls */ |
35b09d82 NJ |
731 | unsigned int n_dirty_dirs; /* # of dir inodes */ |
732 | #endif | |
733 | unsigned int last_victim[2]; /* last victim segment # */ | |
39a53e0c | 734 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
735 | |
736 | /* For sysfs suppport */ | |
737 | struct kobject s_kobj; | |
738 | struct completion s_kobj_unregister; | |
39a53e0c JK |
739 | }; |
740 | ||
741 | /* | |
742 | * Inline functions | |
743 | */ | |
744 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) | |
745 | { | |
746 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
747 | } | |
748 | ||
749 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
750 | { | |
751 | return sb->s_fs_info; | |
752 | } | |
753 | ||
4081363f JK |
754 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
755 | { | |
756 | return F2FS_SB(inode->i_sb); | |
757 | } | |
758 | ||
759 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
760 | { | |
761 | return F2FS_I_SB(mapping->host); | |
762 | } | |
763 | ||
764 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
765 | { | |
766 | return F2FS_M_SB(page->mapping); | |
767 | } | |
768 | ||
39a53e0c JK |
769 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
770 | { | |
771 | return (struct f2fs_super_block *)(sbi->raw_super); | |
772 | } | |
773 | ||
774 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
775 | { | |
776 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
777 | } | |
778 | ||
45590710 GZ |
779 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
780 | { | |
781 | return (struct f2fs_node *)page_address(page); | |
782 | } | |
783 | ||
58bfaf44 JK |
784 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
785 | { | |
786 | return &((struct f2fs_node *)page_address(page))->i; | |
787 | } | |
788 | ||
39a53e0c JK |
789 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
790 | { | |
791 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
792 | } | |
793 | ||
794 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
795 | { | |
796 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
797 | } | |
798 | ||
799 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
800 | { | |
801 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
802 | } | |
803 | ||
804 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
805 | { | |
806 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
807 | } | |
808 | ||
809 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
810 | { | |
811 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
812 | } | |
813 | ||
9df27d98 GZ |
814 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
815 | { | |
816 | return sbi->meta_inode->i_mapping; | |
817 | } | |
818 | ||
4ef51a8f JK |
819 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
820 | { | |
821 | return sbi->node_inode->i_mapping; | |
822 | } | |
823 | ||
caf0047e CY |
824 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
825 | { | |
826 | return sbi->s_flag & (0x01 << type); | |
827 | } | |
828 | ||
829 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 830 | { |
caf0047e | 831 | sbi->s_flag |= (0x01 << type); |
39a53e0c JK |
832 | } |
833 | ||
caf0047e | 834 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 835 | { |
caf0047e | 836 | sbi->s_flag &= ~(0x01 << type); |
39a53e0c JK |
837 | } |
838 | ||
d71b5564 JK |
839 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
840 | { | |
841 | return le64_to_cpu(cp->checkpoint_ver); | |
842 | } | |
843 | ||
25ca923b JK |
844 | static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
845 | { | |
846 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
847 | return ckpt_flags & f; | |
848 | } | |
849 | ||
850 | static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
851 | { | |
852 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
853 | ckpt_flags |= f; | |
854 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
855 | } | |
856 | ||
857 | static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
858 | { | |
859 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
860 | ckpt_flags &= (~f); | |
861 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
862 | } | |
863 | ||
e479556b | 864 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 865 | { |
e479556b | 866 | down_read(&sbi->cp_rwsem); |
39936837 JK |
867 | } |
868 | ||
e479556b | 869 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 870 | { |
e479556b | 871 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
872 | } |
873 | ||
e479556b | 874 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 875 | { |
0daaad97 | 876 | f2fs_down_write(&sbi->cp_rwsem, &sbi->cp_mutex); |
39936837 JK |
877 | } |
878 | ||
e479556b | 879 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 880 | { |
e479556b | 881 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
882 | } |
883 | ||
119ee914 JK |
884 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
885 | { | |
886 | int reason = CP_SYNC; | |
887 | ||
888 | if (test_opt(sbi, FASTBOOT)) | |
889 | reason = CP_FASTBOOT; | |
890 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
891 | reason = CP_UMOUNT; | |
892 | return reason; | |
893 | } | |
894 | ||
895 | static inline bool __remain_node_summaries(int reason) | |
896 | { | |
897 | return (reason == CP_UMOUNT || reason == CP_FASTBOOT); | |
898 | } | |
899 | ||
900 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
901 | { | |
902 | return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || | |
903 | is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); | |
904 | } | |
905 | ||
39a53e0c JK |
906 | /* |
907 | * Check whether the given nid is within node id range. | |
908 | */ | |
064e0823 | 909 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 910 | { |
d6b7d4b3 CY |
911 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
912 | return -EINVAL; | |
cfb271d4 | 913 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
914 | return -EINVAL; |
915 | return 0; | |
39a53e0c JK |
916 | } |
917 | ||
918 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
919 | ||
920 | /* | |
921 | * Check whether the inode has blocks or not | |
922 | */ | |
923 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
924 | { | |
925 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 926 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 927 | else |
6c311ec6 | 928 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
929 | } |
930 | ||
4bc8e9bc CY |
931 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
932 | { | |
933 | return ofs == XATTR_NODE_OFFSET; | |
934 | } | |
935 | ||
39a53e0c JK |
936 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
937 | struct inode *inode, blkcnt_t count) | |
938 | { | |
939 | block_t valid_block_count; | |
940 | ||
941 | spin_lock(&sbi->stat_lock); | |
942 | valid_block_count = | |
943 | sbi->total_valid_block_count + (block_t)count; | |
cfb271d4 | 944 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
945 | spin_unlock(&sbi->stat_lock); |
946 | return false; | |
947 | } | |
948 | inode->i_blocks += count; | |
949 | sbi->total_valid_block_count = valid_block_count; | |
950 | sbi->alloc_valid_block_count += (block_t)count; | |
951 | spin_unlock(&sbi->stat_lock); | |
952 | return true; | |
953 | } | |
954 | ||
da19b0dc | 955 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
956 | struct inode *inode, |
957 | blkcnt_t count) | |
958 | { | |
959 | spin_lock(&sbi->stat_lock); | |
9850cf4a JK |
960 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
961 | f2fs_bug_on(sbi, inode->i_blocks < count); | |
39a53e0c JK |
962 | inode->i_blocks -= count; |
963 | sbi->total_valid_block_count -= (block_t)count; | |
964 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
965 | } |
966 | ||
967 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
968 | { | |
969 | atomic_inc(&sbi->nr_pages[count_type]); | |
caf0047e | 970 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
971 | } |
972 | ||
a7ffdbe2 | 973 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 974 | { |
a7ffdbe2 JK |
975 | atomic_inc(&F2FS_I(inode)->dirty_pages); |
976 | if (S_ISDIR(inode->i_mode)) | |
977 | inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS); | |
39a53e0c JK |
978 | } |
979 | ||
980 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
981 | { | |
982 | atomic_dec(&sbi->nr_pages[count_type]); | |
983 | } | |
984 | ||
a7ffdbe2 | 985 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 986 | { |
a7ffdbe2 | 987 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode)) |
1fe54f9d JK |
988 | return; |
989 | ||
a7ffdbe2 JK |
990 | atomic_dec(&F2FS_I(inode)->dirty_pages); |
991 | ||
992 | if (S_ISDIR(inode->i_mode)) | |
993 | dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS); | |
39a53e0c JK |
994 | } |
995 | ||
996 | static inline int get_pages(struct f2fs_sb_info *sbi, int count_type) | |
997 | { | |
998 | return atomic_read(&sbi->nr_pages[count_type]); | |
999 | } | |
1000 | ||
a7ffdbe2 | 1001 | static inline int get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1002 | { |
a7ffdbe2 | 1003 | return atomic_read(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1004 | } |
1005 | ||
5ac206cf NJ |
1006 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1007 | { | |
1008 | unsigned int pages_per_sec = sbi->segs_per_sec * | |
1009 | (1 << sbi->log_blocks_per_seg); | |
1010 | return ((get_pages(sbi, block_type) + pages_per_sec - 1) | |
1011 | >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; | |
1012 | } | |
1013 | ||
39a53e0c JK |
1014 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1015 | { | |
8b8343fa | 1016 | return sbi->total_valid_block_count; |
39a53e0c JK |
1017 | } |
1018 | ||
1019 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) | |
1020 | { | |
1021 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1022 | ||
1023 | /* return NAT or SIT bitmap */ | |
1024 | if (flag == NAT_BITMAP) | |
1025 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1026 | else if (flag == SIT_BITMAP) | |
1027 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1028 | ||
1029 | return 0; | |
1030 | } | |
1031 | ||
55141486 WL |
1032 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1033 | { | |
1034 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1035 | } | |
1036 | ||
39a53e0c JK |
1037 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1038 | { | |
1039 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1040 | int offset; |
1041 | ||
55141486 | 1042 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1043 | if (flag == NAT_BITMAP) |
1044 | return &ckpt->sit_nat_version_bitmap; | |
1045 | else | |
65b85ccc | 1046 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1047 | } else { |
1048 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1049 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1050 | return &ckpt->sit_nat_version_bitmap + offset; |
1051 | } | |
39a53e0c JK |
1052 | } |
1053 | ||
1054 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1055 | { | |
1056 | block_t start_addr; | |
1057 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d71b5564 | 1058 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
39a53e0c | 1059 | |
25ca923b | 1060 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c JK |
1061 | |
1062 | /* | |
1063 | * odd numbered checkpoint should at cp segment 0 | |
e1c42045 | 1064 | * and even segment must be at cp segment 1 |
39a53e0c JK |
1065 | */ |
1066 | if (!(ckpt_version & 1)) | |
1067 | start_addr += sbi->blocks_per_seg; | |
1068 | ||
1069 | return start_addr; | |
1070 | } | |
1071 | ||
1072 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
1073 | { | |
1074 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1075 | } | |
1076 | ||
1077 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1078 | struct inode *inode) |
39a53e0c JK |
1079 | { |
1080 | block_t valid_block_count; | |
1081 | unsigned int valid_node_count; | |
1082 | ||
1083 | spin_lock(&sbi->stat_lock); | |
1084 | ||
ef86d709 | 1085 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 1086 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1087 | spin_unlock(&sbi->stat_lock); |
1088 | return false; | |
1089 | } | |
1090 | ||
ef86d709 | 1091 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1092 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1093 | spin_unlock(&sbi->stat_lock); |
1094 | return false; | |
1095 | } | |
1096 | ||
1097 | if (inode) | |
ef86d709 GZ |
1098 | inode->i_blocks++; |
1099 | ||
1100 | sbi->alloc_valid_block_count++; | |
1101 | sbi->total_valid_node_count++; | |
1102 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1103 | spin_unlock(&sbi->stat_lock); |
1104 | ||
1105 | return true; | |
1106 | } | |
1107 | ||
1108 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1109 | struct inode *inode) |
39a53e0c JK |
1110 | { |
1111 | spin_lock(&sbi->stat_lock); | |
1112 | ||
9850cf4a JK |
1113 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1114 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1115 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1116 | |
ef86d709 GZ |
1117 | inode->i_blocks--; |
1118 | sbi->total_valid_node_count--; | |
1119 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1120 | |
1121 | spin_unlock(&sbi->stat_lock); | |
1122 | } | |
1123 | ||
1124 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1125 | { | |
8b8343fa | 1126 | return sbi->total_valid_node_count; |
39a53e0c JK |
1127 | } |
1128 | ||
1129 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1130 | { | |
1131 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1132 | f2fs_bug_on(sbi, sbi->total_valid_inode_count == sbi->total_node_count); |
39a53e0c JK |
1133 | sbi->total_valid_inode_count++; |
1134 | spin_unlock(&sbi->stat_lock); | |
1135 | } | |
1136 | ||
0e80220a | 1137 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c JK |
1138 | { |
1139 | spin_lock(&sbi->stat_lock); | |
9850cf4a | 1140 | f2fs_bug_on(sbi, !sbi->total_valid_inode_count); |
39a53e0c JK |
1141 | sbi->total_valid_inode_count--; |
1142 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
1143 | } |
1144 | ||
1145 | static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) | |
1146 | { | |
8b8343fa | 1147 | return sbi->total_valid_inode_count; |
39a53e0c JK |
1148 | } |
1149 | ||
1150 | static inline void f2fs_put_page(struct page *page, int unlock) | |
1151 | { | |
031fa8cc | 1152 | if (!page) |
39a53e0c JK |
1153 | return; |
1154 | ||
1155 | if (unlock) { | |
9850cf4a | 1156 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1157 | unlock_page(page); |
1158 | } | |
1159 | page_cache_release(page); | |
1160 | } | |
1161 | ||
1162 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1163 | { | |
1164 | if (dn->node_page) | |
1165 | f2fs_put_page(dn->node_page, 1); | |
1166 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1167 | f2fs_put_page(dn->inode_page, 0); | |
1168 | dn->node_page = NULL; | |
1169 | dn->inode_page = NULL; | |
1170 | } | |
1171 | ||
1172 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1173 | size_t size) |
39a53e0c | 1174 | { |
e8512d2e | 1175 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1176 | } |
1177 | ||
7bd59381 GZ |
1178 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1179 | gfp_t flags) | |
1180 | { | |
1181 | void *entry; | |
1182 | retry: | |
1183 | entry = kmem_cache_alloc(cachep, flags); | |
1184 | if (!entry) { | |
1185 | cond_resched(); | |
1186 | goto retry; | |
1187 | } | |
1188 | ||
1189 | return entry; | |
1190 | } | |
1191 | ||
9be32d72 JK |
1192 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1193 | unsigned long index, void *item) | |
1194 | { | |
1195 | while (radix_tree_insert(root, index, item)) | |
1196 | cond_resched(); | |
1197 | } | |
1198 | ||
39a53e0c JK |
1199 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1200 | ||
1201 | static inline bool IS_INODE(struct page *page) | |
1202 | { | |
45590710 | 1203 | struct f2fs_node *p = F2FS_NODE(page); |
39a53e0c JK |
1204 | return RAW_IS_INODE(p); |
1205 | } | |
1206 | ||
1207 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1208 | { | |
1209 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1210 | } | |
1211 | ||
1212 | static inline block_t datablock_addr(struct page *node_page, | |
1213 | unsigned int offset) | |
1214 | { | |
1215 | struct f2fs_node *raw_node; | |
1216 | __le32 *addr_array; | |
45590710 | 1217 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1218 | addr_array = blkaddr_in_node(raw_node); |
1219 | return le32_to_cpu(addr_array[offset]); | |
1220 | } | |
1221 | ||
1222 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1223 | { | |
1224 | int mask; | |
1225 | ||
1226 | addr += (nr >> 3); | |
1227 | mask = 1 << (7 - (nr & 0x07)); | |
1228 | return mask & *addr; | |
1229 | } | |
1230 | ||
a66cdd98 JK |
1231 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1232 | { | |
1233 | int mask; | |
1234 | ||
1235 | addr += (nr >> 3); | |
1236 | mask = 1 << (7 - (nr & 0x07)); | |
1237 | *addr |= mask; | |
1238 | } | |
1239 | ||
1240 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
1241 | { | |
1242 | int mask; | |
1243 | ||
1244 | addr += (nr >> 3); | |
1245 | mask = 1 << (7 - (nr & 0x07)); | |
1246 | *addr &= ~mask; | |
1247 | } | |
1248 | ||
52aca074 | 1249 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1250 | { |
1251 | int mask; | |
1252 | int ret; | |
1253 | ||
1254 | addr += (nr >> 3); | |
1255 | mask = 1 << (7 - (nr & 0x07)); | |
1256 | ret = mask & *addr; | |
1257 | *addr |= mask; | |
1258 | return ret; | |
1259 | } | |
1260 | ||
52aca074 | 1261 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1262 | { |
1263 | int mask; | |
1264 | int ret; | |
1265 | ||
1266 | addr += (nr >> 3); | |
1267 | mask = 1 << (7 - (nr & 0x07)); | |
1268 | ret = mask & *addr; | |
1269 | *addr &= ~mask; | |
1270 | return ret; | |
1271 | } | |
1272 | ||
c6ac4c0e GZ |
1273 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1274 | { | |
1275 | int mask; | |
1276 | ||
1277 | addr += (nr >> 3); | |
1278 | mask = 1 << (7 - (nr & 0x07)); | |
1279 | *addr ^= mask; | |
1280 | } | |
1281 | ||
39a53e0c JK |
1282 | /* used for f2fs_inode_info->flags */ |
1283 | enum { | |
1284 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1285 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
ed57c27f | 1286 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1287 | FI_INC_LINK, /* need to increment i_nlink */ |
1288 | FI_ACL_MODE, /* indicate acl mode */ | |
1289 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
699489bb | 1290 | FI_UPDATE_DIR, /* should update inode block for consistency */ |
74d0b917 | 1291 | FI_DELAY_IPUT, /* used for the recovery */ |
c11abd1a | 1292 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1293 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1294 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1295 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1296 | FI_APPEND_WRITE, /* inode has appended data */ |
1297 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1298 | FI_NEED_IPU, /* used for ipu per file */ |
1299 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
02a1335f | 1300 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1301 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1302 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1303 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1304 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
39a53e0c JK |
1305 | }; |
1306 | ||
1307 | static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1308 | { | |
61e0f2d0 JK |
1309 | if (!test_bit(flag, &fi->flags)) |
1310 | set_bit(flag, &fi->flags); | |
39a53e0c JK |
1311 | } |
1312 | ||
1313 | static inline int is_inode_flag_set(struct f2fs_inode_info *fi, int flag) | |
1314 | { | |
1315 | return test_bit(flag, &fi->flags); | |
1316 | } | |
1317 | ||
1318 | static inline void clear_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1319 | { | |
61e0f2d0 JK |
1320 | if (test_bit(flag, &fi->flags)) |
1321 | clear_bit(flag, &fi->flags); | |
39a53e0c JK |
1322 | } |
1323 | ||
1324 | static inline void set_acl_inode(struct f2fs_inode_info *fi, umode_t mode) | |
1325 | { | |
1326 | fi->i_acl_mode = mode; | |
1327 | set_inode_flag(fi, FI_ACL_MODE); | |
1328 | } | |
1329 | ||
444c580f JK |
1330 | static inline void get_inline_info(struct f2fs_inode_info *fi, |
1331 | struct f2fs_inode *ri) | |
1332 | { | |
1333 | if (ri->i_inline & F2FS_INLINE_XATTR) | |
1334 | set_inode_flag(fi, FI_INLINE_XATTR); | |
1001b347 HL |
1335 | if (ri->i_inline & F2FS_INLINE_DATA) |
1336 | set_inode_flag(fi, FI_INLINE_DATA); | |
34d67deb CY |
1337 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
1338 | set_inode_flag(fi, FI_INLINE_DENTRY); | |
b3d208f9 JK |
1339 | if (ri->i_inline & F2FS_DATA_EXIST) |
1340 | set_inode_flag(fi, FI_DATA_EXIST); | |
510022a8 JK |
1341 | if (ri->i_inline & F2FS_INLINE_DOTS) |
1342 | set_inode_flag(fi, FI_INLINE_DOTS); | |
444c580f JK |
1343 | } |
1344 | ||
1345 | static inline void set_raw_inline(struct f2fs_inode_info *fi, | |
1346 | struct f2fs_inode *ri) | |
1347 | { | |
1348 | ri->i_inline = 0; | |
1349 | ||
1350 | if (is_inode_flag_set(fi, FI_INLINE_XATTR)) | |
1351 | ri->i_inline |= F2FS_INLINE_XATTR; | |
1001b347 HL |
1352 | if (is_inode_flag_set(fi, FI_INLINE_DATA)) |
1353 | ri->i_inline |= F2FS_INLINE_DATA; | |
34d67deb CY |
1354 | if (is_inode_flag_set(fi, FI_INLINE_DENTRY)) |
1355 | ri->i_inline |= F2FS_INLINE_DENTRY; | |
b3d208f9 JK |
1356 | if (is_inode_flag_set(fi, FI_DATA_EXIST)) |
1357 | ri->i_inline |= F2FS_DATA_EXIST; | |
510022a8 JK |
1358 | if (is_inode_flag_set(fi, FI_INLINE_DOTS)) |
1359 | ri->i_inline |= F2FS_INLINE_DOTS; | |
444c580f JK |
1360 | } |
1361 | ||
987c7c31 CY |
1362 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1363 | { | |
1364 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR); | |
1365 | } | |
1366 | ||
de93653f JK |
1367 | static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi) |
1368 | { | |
987c7c31 | 1369 | if (f2fs_has_inline_xattr(&fi->vfs_inode)) |
de93653f JK |
1370 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1371 | return DEF_ADDRS_PER_INODE; | |
1372 | } | |
1373 | ||
65985d93 JK |
1374 | static inline void *inline_xattr_addr(struct page *page) |
1375 | { | |
695fd1ed | 1376 | struct f2fs_inode *ri = F2FS_INODE(page); |
65985d93 JK |
1377 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1378 | F2FS_INLINE_XATTR_ADDRS]); | |
1379 | } | |
1380 | ||
1381 | static inline int inline_xattr_size(struct inode *inode) | |
1382 | { | |
987c7c31 | 1383 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1384 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1385 | else | |
1386 | return 0; | |
1387 | } | |
1388 | ||
0dbdc2ae JK |
1389 | static inline int f2fs_has_inline_data(struct inode *inode) |
1390 | { | |
1391 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DATA); | |
1392 | } | |
1393 | ||
b3d208f9 JK |
1394 | static inline void f2fs_clear_inline_inode(struct inode *inode) |
1395 | { | |
1396 | clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA); | |
1397 | clear_inode_flag(F2FS_I(inode), FI_DATA_EXIST); | |
1398 | } | |
1399 | ||
1400 | static inline int f2fs_exist_data(struct inode *inode) | |
1401 | { | |
1402 | return is_inode_flag_set(F2FS_I(inode), FI_DATA_EXIST); | |
1403 | } | |
1404 | ||
510022a8 JK |
1405 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1406 | { | |
1407 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DOTS); | |
1408 | } | |
1409 | ||
88b88a66 JK |
1410 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1411 | { | |
1412 | return is_inode_flag_set(F2FS_I(inode), FI_ATOMIC_FILE); | |
1413 | } | |
1414 | ||
02a1335f JK |
1415 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
1416 | { | |
1417 | return is_inode_flag_set(F2FS_I(inode), FI_VOLATILE_FILE); | |
1418 | } | |
1419 | ||
3c6c2beb JK |
1420 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
1421 | { | |
1422 | return is_inode_flag_set(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN); | |
1423 | } | |
1424 | ||
1e84371f JK |
1425 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
1426 | { | |
1427 | return is_inode_flag_set(F2FS_I(inode), FI_DROP_CACHE); | |
1428 | } | |
1429 | ||
1001b347 HL |
1430 | static inline void *inline_data_addr(struct page *page) |
1431 | { | |
695fd1ed | 1432 | struct f2fs_inode *ri = F2FS_INODE(page); |
1001b347 HL |
1433 | return (void *)&(ri->i_addr[1]); |
1434 | } | |
1435 | ||
34d67deb CY |
1436 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
1437 | { | |
1438 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DENTRY); | |
1439 | } | |
1440 | ||
9486ba44 JK |
1441 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
1442 | { | |
1443 | if (!f2fs_has_inline_dentry(dir)) | |
1444 | kunmap(page); | |
1445 | } | |
1446 | ||
b5492af7 JK |
1447 | static inline int is_file(struct inode *inode, int type) |
1448 | { | |
1449 | return F2FS_I(inode)->i_advise & type; | |
1450 | } | |
1451 | ||
1452 | static inline void set_file(struct inode *inode, int type) | |
1453 | { | |
1454 | F2FS_I(inode)->i_advise |= type; | |
1455 | } | |
1456 | ||
1457 | static inline void clear_file(struct inode *inode, int type) | |
1458 | { | |
1459 | F2FS_I(inode)->i_advise &= ~type; | |
1460 | } | |
1461 | ||
77888c1e JK |
1462 | static inline int f2fs_readonly(struct super_block *sb) |
1463 | { | |
1464 | return sb->s_flags & MS_RDONLY; | |
1465 | } | |
1466 | ||
1e968fdf JK |
1467 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
1468 | { | |
1469 | return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1470 | } | |
1471 | ||
744602cf JK |
1472 | static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi) |
1473 | { | |
1474 | set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1475 | sbi->sb->s_flags |= MS_RDONLY; | |
1476 | } | |
1477 | ||
eaa693f4 JK |
1478 | static inline bool is_dot_dotdot(const struct qstr *str) |
1479 | { | |
1480 | if (str->len == 1 && str->name[0] == '.') | |
1481 | return true; | |
1482 | ||
1483 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
1484 | return true; | |
1485 | ||
1486 | return false; | |
1487 | } | |
1488 | ||
a6dda0e6 CH |
1489 | #define get_inode_mode(i) \ |
1490 | ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ | |
1491 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) | |
1492 | ||
267378d4 CY |
1493 | /* get offset of first page in next direct node */ |
1494 | #define PGOFS_OF_NEXT_DNODE(pgofs, fi) \ | |
1495 | ((pgofs < ADDRS_PER_INODE(fi)) ? ADDRS_PER_INODE(fi) : \ | |
1496 | (pgofs - ADDRS_PER_INODE(fi) + ADDRS_PER_BLOCK) / \ | |
1497 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(fi)) | |
1498 | ||
39a53e0c JK |
1499 | /* |
1500 | * file.c | |
1501 | */ | |
1502 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); | |
1503 | void truncate_data_blocks(struct dnode_of_data *); | |
764aa3e9 | 1504 | int truncate_blocks(struct inode *, u64, bool); |
39a53e0c | 1505 | void f2fs_truncate(struct inode *); |
2d4d9fb5 | 1506 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
39a53e0c JK |
1507 | int f2fs_setattr(struct dentry *, struct iattr *); |
1508 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); | |
b292dcab | 1509 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
39a53e0c | 1510 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
e9750824 | 1511 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
39a53e0c JK |
1512 | |
1513 | /* | |
1514 | * inode.c | |
1515 | */ | |
1516 | void f2fs_set_inode_flags(struct inode *); | |
39a53e0c | 1517 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
4660f9c0 | 1518 | int try_to_free_nats(struct f2fs_sb_info *, int); |
39a53e0c | 1519 | void update_inode(struct inode *, struct page *); |
744602cf | 1520 | void update_inode_page(struct inode *); |
39a53e0c JK |
1521 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
1522 | void f2fs_evict_inode(struct inode *); | |
44c16156 | 1523 | void handle_failed_inode(struct inode *); |
39a53e0c JK |
1524 | |
1525 | /* | |
1526 | * namei.c | |
1527 | */ | |
1528 | struct dentry *f2fs_get_parent(struct dentry *child); | |
1529 | ||
1530 | /* | |
1531 | * dir.c | |
1532 | */ | |
dbeacf02 | 1533 | extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; |
510022a8 | 1534 | void set_de_type(struct f2fs_dir_entry *, umode_t); |
7b3cd7d6 JK |
1535 | struct f2fs_dir_entry *find_target_dentry(struct qstr *, int *, |
1536 | struct f2fs_dentry_ptr *); | |
1537 | bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, | |
1538 | unsigned int); | |
062a3e7b JK |
1539 | void do_make_empty_dir(struct inode *, struct inode *, |
1540 | struct f2fs_dentry_ptr *); | |
dbeacf02 | 1541 | struct page *init_inode_metadata(struct inode *, struct inode *, |
bce8d112 | 1542 | const struct qstr *, struct page *); |
dbeacf02 | 1543 | void update_parent_metadata(struct inode *, struct inode *, unsigned int); |
a82afa20 | 1544 | int room_for_filename(const void *, int, int); |
dbeacf02 | 1545 | void f2fs_drop_nlink(struct inode *, struct inode *, struct page *); |
39a53e0c JK |
1546 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *, |
1547 | struct page **); | |
1548 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); | |
1549 | ino_t f2fs_inode_by_name(struct inode *, struct qstr *); | |
1550 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, | |
1551 | struct page *, struct inode *); | |
1cd14caf | 1552 | int update_dent_inode(struct inode *, const struct qstr *); |
510022a8 | 1553 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, |
3b4d732a | 1554 | const struct qstr *, f2fs_hash_t , unsigned int); |
510022a8 JK |
1555 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, |
1556 | umode_t); | |
dbeacf02 CY |
1557 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, |
1558 | struct inode *); | |
b97a9b5d | 1559 | int f2fs_do_tmpfile(struct inode *, struct inode *); |
39a53e0c JK |
1560 | bool f2fs_empty_dir(struct inode *); |
1561 | ||
b7f7a5e0 AV |
1562 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
1563 | { | |
2b0143b5 | 1564 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 1565 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
1566 | } |
1567 | ||
39a53e0c JK |
1568 | /* |
1569 | * super.c | |
1570 | */ | |
26d815ad | 1571 | int f2fs_commit_super(struct f2fs_sb_info *); |
39a53e0c | 1572 | int f2fs_sync_fs(struct super_block *, int); |
a07ef784 NJ |
1573 | extern __printf(3, 4) |
1574 | void f2fs_msg(struct super_block *, const char *, const char *, ...); | |
39a53e0c JK |
1575 | |
1576 | /* | |
1577 | * hash.c | |
1578 | */ | |
eee6160f | 1579 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *); |
39a53e0c JK |
1580 | |
1581 | /* | |
1582 | * node.c | |
1583 | */ | |
1584 | struct dnode_of_data; | |
1585 | struct node_info; | |
1586 | ||
6fb03f3a | 1587 | bool available_free_memory(struct f2fs_sb_info *, int); |
2dcf51ab | 1588 | int need_dentry_mark(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1589 | bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1590 | bool need_inode_block_update(struct f2fs_sb_info *, nid_t); |
39a53e0c JK |
1591 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
1592 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); | |
1593 | int truncate_inode_blocks(struct inode *, pgoff_t); | |
4f16fb0f | 1594 | int truncate_xattr_node(struct inode *, struct page *); |
cfe58f9d | 1595 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
58e674d6 | 1596 | void remove_inode_page(struct inode *); |
a014e037 | 1597 | struct page *new_inode_page(struct inode *); |
8ae8f162 | 1598 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
39a53e0c JK |
1599 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
1600 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); | |
1601 | struct page *get_node_page_ra(struct page *, int); | |
1602 | void sync_inode_page(struct dnode_of_data *); | |
1603 | int sync_node_pages(struct f2fs_sb_info *, nid_t, struct writeback_control *); | |
1604 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); | |
1605 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); | |
1606 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); | |
70cfed88 | 1607 | void recover_inline_xattr(struct inode *, struct page *); |
1c35a90e | 1608 | void recover_xattr_data(struct inode *, struct page *, block_t); |
39a53e0c JK |
1609 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
1610 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, | |
1611 | struct f2fs_summary_block *); | |
1612 | void flush_nat_entries(struct f2fs_sb_info *); | |
1613 | int build_node_manager(struct f2fs_sb_info *); | |
1614 | void destroy_node_manager(struct f2fs_sb_info *); | |
6e6093a8 | 1615 | int __init create_node_manager_caches(void); |
39a53e0c JK |
1616 | void destroy_node_manager_caches(void); |
1617 | ||
1618 | /* | |
1619 | * segment.c | |
1620 | */ | |
88b88a66 JK |
1621 | void register_inmem_page(struct inode *, struct page *); |
1622 | void commit_inmem_pages(struct inode *, bool); | |
39a53e0c | 1623 | void f2fs_balance_fs(struct f2fs_sb_info *); |
4660f9c0 | 1624 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
6b4afdd7 | 1625 | int f2fs_issue_flush(struct f2fs_sb_info *); |
2163d198 GZ |
1626 | int create_flush_cmd_control(struct f2fs_sb_info *); |
1627 | void destroy_flush_cmd_control(struct f2fs_sb_info *); | |
39a53e0c | 1628 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
5e443818 | 1629 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
836b5a63 | 1630 | void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); |
4b2fecc8 | 1631 | void release_discard_addrs(struct f2fs_sb_info *); |
cf2271e7 | 1632 | void discard_next_dnode(struct f2fs_sb_info *, block_t); |
3fa06d7b | 1633 | int npages_for_summary_flush(struct f2fs_sb_info *, bool); |
39a53e0c | 1634 | void allocate_new_segments(struct f2fs_sb_info *); |
4b2fecc8 | 1635 | int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); |
39a53e0c | 1636 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); |
577e3495 | 1637 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
05ca3632 JK |
1638 | void write_node_page(unsigned int, struct f2fs_io_info *); |
1639 | void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); | |
1640 | void rewrite_data_page(struct f2fs_io_info *); | |
19f106bc CY |
1641 | void f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *, |
1642 | block_t, block_t, bool); | |
bfad7c2d JK |
1643 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
1644 | block_t, block_t *, struct f2fs_summary *, int); | |
5514f0aa | 1645 | void f2fs_wait_on_page_writeback(struct page *, enum page_type); |
39a53e0c JK |
1646 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
1647 | void write_node_summaries(struct f2fs_sb_info *, block_t); | |
1648 | int lookup_journal_in_cursum(struct f2fs_summary_block *, | |
1649 | int, unsigned int, int); | |
4b2fecc8 | 1650 | void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); |
39a53e0c | 1651 | int build_segment_manager(struct f2fs_sb_info *); |
39a53e0c | 1652 | void destroy_segment_manager(struct f2fs_sb_info *); |
7fd9e544 JK |
1653 | int __init create_segment_manager_caches(void); |
1654 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
1655 | |
1656 | /* | |
1657 | * checkpoint.c | |
1658 | */ | |
1659 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); | |
1660 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); | |
f0c9cada | 1661 | bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); |
4c521f49 | 1662 | int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int); |
635aee1f | 1663 | void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); |
39a53e0c | 1664 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
fff04f90 JK |
1665 | void add_dirty_inode(struct f2fs_sb_info *, nid_t, int type); |
1666 | void remove_dirty_inode(struct f2fs_sb_info *, nid_t, int type); | |
6f12ac25 | 1667 | void release_dirty_inode(struct f2fs_sb_info *); |
fff04f90 | 1668 | bool exist_written_data(struct f2fs_sb_info *, nid_t, int); |
cbd56e7d JK |
1669 | int acquire_orphan_inode(struct f2fs_sb_info *); |
1670 | void release_orphan_inode(struct f2fs_sb_info *); | |
39a53e0c JK |
1671 | void add_orphan_inode(struct f2fs_sb_info *, nid_t); |
1672 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); | |
8f99a946 | 1673 | void recover_orphan_inodes(struct f2fs_sb_info *); |
39a53e0c | 1674 | int get_valid_checkpoint(struct f2fs_sb_info *); |
a7ffdbe2 | 1675 | void update_dirty_page(struct inode *, struct page *); |
5deb8267 | 1676 | void add_dirty_dir_inode(struct inode *); |
39a53e0c JK |
1677 | void remove_dirty_dir_inode(struct inode *); |
1678 | void sync_dirty_dir_inodes(struct f2fs_sb_info *); | |
75ab4cb8 | 1679 | void write_checkpoint(struct f2fs_sb_info *, struct cp_control *); |
6451e041 | 1680 | void init_ino_entry_info(struct f2fs_sb_info *); |
6e6093a8 | 1681 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
1682 | void destroy_checkpoint_caches(void); |
1683 | ||
1684 | /* | |
1685 | * data.c | |
1686 | */ | |
458e6197 | 1687 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
05ca3632 JK |
1688 | int f2fs_submit_page_bio(struct f2fs_io_info *); |
1689 | void f2fs_submit_page_mbio(struct f2fs_io_info *); | |
216a620a | 1690 | void set_data_blkaddr(struct dnode_of_data *); |
39a53e0c | 1691 | int reserve_new_block(struct dnode_of_data *); |
b600965c | 1692 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
429511cd CY |
1693 | void f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); |
1694 | void f2fs_destroy_extent_tree(struct inode *); | |
028a41e8 | 1695 | void f2fs_init_extent_cache(struct inode *, struct f2fs_extent *); |
7e4dde79 | 1696 | void f2fs_update_extent_cache(struct dnode_of_data *); |
0bdee482 | 1697 | void f2fs_preserve_extent_tree(struct inode *); |
43f3eae1 JK |
1698 | struct page *get_read_data_page(struct inode *, pgoff_t, int); |
1699 | struct page *find_data_page(struct inode *, pgoff_t); | |
39a53e0c | 1700 | struct page *get_lock_data_page(struct inode *, pgoff_t); |
64aa7ed9 | 1701 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
05ca3632 | 1702 | int do_write_data_page(struct f2fs_io_info *); |
9ab70134 | 1703 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
429511cd CY |
1704 | void init_extent_cache_info(struct f2fs_sb_info *); |
1705 | int __init create_extent_cache(void); | |
1706 | void destroy_extent_cache(void); | |
487261f3 CY |
1707 | void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); |
1708 | int f2fs_release_page(struct page *, gfp_t); | |
39a53e0c JK |
1709 | |
1710 | /* | |
1711 | * gc.c | |
1712 | */ | |
1713 | int start_gc_thread(struct f2fs_sb_info *); | |
1714 | void stop_gc_thread(struct f2fs_sb_info *); | |
de93653f | 1715 | block_t start_bidx_of_node(unsigned int, struct f2fs_inode_info *); |
408e9375 | 1716 | int f2fs_gc(struct f2fs_sb_info *); |
39a53e0c | 1717 | void build_gc_manager(struct f2fs_sb_info *); |
39a53e0c JK |
1718 | |
1719 | /* | |
1720 | * recovery.c | |
1721 | */ | |
6ead1142 | 1722 | int recover_fsync_data(struct f2fs_sb_info *); |
39a53e0c JK |
1723 | bool space_for_roll_forward(struct f2fs_sb_info *); |
1724 | ||
1725 | /* | |
1726 | * debug.c | |
1727 | */ | |
1728 | #ifdef CONFIG_F2FS_STAT_FS | |
1729 | struct f2fs_stat_info { | |
1730 | struct list_head stat_list; | |
1731 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
1732 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
1733 | int main_area_segs, main_area_sections, main_area_zones; | |
4bf6fd9f | 1734 | int hit_ext, total_ext, ext_tree, ext_node; |
39a53e0c | 1735 | int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta; |
dd4e4b59 | 1736 | int nats, dirty_nats, sits, dirty_sits, fnids; |
39a53e0c | 1737 | int total_count, utilization; |
d24bdcbf | 1738 | int bg_gc, inline_inode, inline_dir, inmem_pages, wb_pages; |
39a53e0c JK |
1739 | unsigned int valid_count, valid_node_count, valid_inode_count; |
1740 | unsigned int bimodal, avg_vblocks; | |
1741 | int util_free, util_valid, util_invalid; | |
1742 | int rsvd_segs, overp_segs; | |
1743 | int dirty_count, node_pages, meta_pages; | |
942e0be6 | 1744 | int prefree_count, call_count, cp_count; |
39a53e0c | 1745 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 1746 | int bg_node_segs, bg_data_segs; |
39a53e0c | 1747 | int tot_blks, data_blks, node_blks; |
e1235983 | 1748 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
1749 | int curseg[NR_CURSEG_TYPE]; |
1750 | int cursec[NR_CURSEG_TYPE]; | |
1751 | int curzone[NR_CURSEG_TYPE]; | |
1752 | ||
1753 | unsigned int segment_count[2]; | |
1754 | unsigned int block_count[2]; | |
b9a2c252 | 1755 | unsigned int inplace_count; |
6f0aacbc | 1756 | unsigned base_mem, cache_mem, page_mem; |
39a53e0c JK |
1757 | }; |
1758 | ||
963d4f7d GZ |
1759 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
1760 | { | |
6c311ec6 | 1761 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
1762 | } |
1763 | ||
942e0be6 | 1764 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
dcdfff65 JK |
1765 | #define stat_inc_call_count(si) ((si)->call_count++) |
1766 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
1767 | #define stat_inc_dirty_dir(sbi) ((sbi)->n_dirty_dirs++) | |
1768 | #define stat_dec_dirty_dir(sbi) ((sbi)->n_dirty_dirs--) | |
1769 | #define stat_inc_total_hit(sb) ((F2FS_SB(sb))->total_hit_ext++) | |
1770 | #define stat_inc_read_hit(sb) ((F2FS_SB(sb))->read_hit_ext++) | |
0dbdc2ae JK |
1771 | #define stat_inc_inline_inode(inode) \ |
1772 | do { \ | |
1773 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 1774 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
1775 | } while (0) |
1776 | #define stat_dec_inline_inode(inode) \ | |
1777 | do { \ | |
1778 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 1779 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 1780 | } while (0) |
3289c061 JK |
1781 | #define stat_inc_inline_dir(inode) \ |
1782 | do { \ | |
1783 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 1784 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
1785 | } while (0) |
1786 | #define stat_dec_inline_dir(inode) \ | |
1787 | do { \ | |
1788 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 1789 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 1790 | } while (0) |
dcdfff65 JK |
1791 | #define stat_inc_seg_type(sbi, curseg) \ |
1792 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
1793 | #define stat_inc_block_count(sbi, curseg) \ | |
1794 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
1795 | #define stat_inc_inplace_blocks(sbi) \ |
1796 | (atomic_inc(&(sbi)->inplace_count)) | |
e1235983 | 1797 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 1798 | do { \ |
963d4f7d | 1799 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c | 1800 | (si)->tot_segs++; \ |
e1235983 | 1801 | if (type == SUM_TYPE_DATA) { \ |
39a53e0c | 1802 | si->data_segs++; \ |
e1235983 CL |
1803 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
1804 | } else { \ | |
39a53e0c | 1805 | si->node_segs++; \ |
e1235983 CL |
1806 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
1807 | } \ | |
39a53e0c JK |
1808 | } while (0) |
1809 | ||
1810 | #define stat_inc_tot_blk_count(si, blks) \ | |
1811 | (si->tot_blks += (blks)) | |
1812 | ||
e1235983 | 1813 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 1814 | do { \ |
963d4f7d | 1815 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
1816 | stat_inc_tot_blk_count(si, blks); \ |
1817 | si->data_blks += (blks); \ | |
e1235983 | 1818 | si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
1819 | } while (0) |
1820 | ||
e1235983 | 1821 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 1822 | do { \ |
963d4f7d | 1823 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
1824 | stat_inc_tot_blk_count(si, blks); \ |
1825 | si->node_blks += (blks); \ | |
e1235983 | 1826 | si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
1827 | } while (0) |
1828 | ||
1829 | int f2fs_build_stats(struct f2fs_sb_info *); | |
1830 | void f2fs_destroy_stats(struct f2fs_sb_info *); | |
6e6093a8 | 1831 | void __init f2fs_create_root_stats(void); |
4589d25d | 1832 | void f2fs_destroy_root_stats(void); |
39a53e0c | 1833 | #else |
942e0be6 | 1834 | #define stat_inc_cp_count(si) |
39a53e0c | 1835 | #define stat_inc_call_count(si) |
dcdfff65 JK |
1836 | #define stat_inc_bggc_count(si) |
1837 | #define stat_inc_dirty_dir(sbi) | |
1838 | #define stat_dec_dirty_dir(sbi) | |
1839 | #define stat_inc_total_hit(sb) | |
1840 | #define stat_inc_read_hit(sb) | |
0dbdc2ae JK |
1841 | #define stat_inc_inline_inode(inode) |
1842 | #define stat_dec_inline_inode(inode) | |
3289c061 JK |
1843 | #define stat_inc_inline_dir(inode) |
1844 | #define stat_dec_inline_dir(inode) | |
dcdfff65 JK |
1845 | #define stat_inc_seg_type(sbi, curseg) |
1846 | #define stat_inc_block_count(sbi, curseg) | |
b9a2c252 | 1847 | #define stat_inc_inplace_blocks(sbi) |
e1235983 | 1848 | #define stat_inc_seg_count(sbi, type, gc_type) |
39a53e0c | 1849 | #define stat_inc_tot_blk_count(si, blks) |
e1235983 CL |
1850 | #define stat_inc_data_blk_count(sbi, blks, gc_type) |
1851 | #define stat_inc_node_blk_count(sbi, blks, gc_type) | |
39a53e0c JK |
1852 | |
1853 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
1854 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
6e6093a8 | 1855 | static inline void __init f2fs_create_root_stats(void) { } |
4589d25d | 1856 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
1857 | #endif |
1858 | ||
1859 | extern const struct file_operations f2fs_dir_operations; | |
1860 | extern const struct file_operations f2fs_file_operations; | |
1861 | extern const struct inode_operations f2fs_file_inode_operations; | |
1862 | extern const struct address_space_operations f2fs_dblock_aops; | |
1863 | extern const struct address_space_operations f2fs_node_aops; | |
1864 | extern const struct address_space_operations f2fs_meta_aops; | |
1865 | extern const struct inode_operations f2fs_dir_inode_operations; | |
1866 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
1867 | extern const struct inode_operations f2fs_special_inode_operations; | |
29e7043f | 1868 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 1869 | |
e18c65b2 HL |
1870 | /* |
1871 | * inline.c | |
1872 | */ | |
01b960e9 JK |
1873 | bool f2fs_may_inline_data(struct inode *); |
1874 | bool f2fs_may_inline_dentry(struct inode *); | |
b3d208f9 | 1875 | void read_inline_data(struct page *, struct page *); |
0bfcfcca | 1876 | bool truncate_inline_inode(struct page *, u64); |
e18c65b2 | 1877 | int f2fs_read_inline_data(struct inode *, struct page *); |
b3d208f9 JK |
1878 | int f2fs_convert_inline_page(struct dnode_of_data *, struct page *); |
1879 | int f2fs_convert_inline_inode(struct inode *); | |
1880 | int f2fs_write_inline_data(struct inode *, struct page *); | |
0342fd30 | 1881 | bool recover_inline_data(struct inode *, struct page *); |
201a05be CY |
1882 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *, struct qstr *, |
1883 | struct page **); | |
1884 | struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *, struct page **); | |
1885 | int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); | |
510022a8 JK |
1886 | int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *, |
1887 | nid_t, umode_t); | |
201a05be CY |
1888 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, |
1889 | struct inode *, struct inode *); | |
1890 | bool f2fs_empty_inline_dir(struct inode *); | |
1891 | int f2fs_read_inline_dir(struct file *, struct dir_context *); | |
39a53e0c | 1892 | #endif |