Commit | Line | Data |
---|---|---|
0a8165d7 | 1 | /* |
39a53e0c JK |
2 | * fs/f2fs/f2fs.h |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #ifndef _LINUX_F2FS_H | |
12 | #define _LINUX_F2FS_H | |
13 | ||
14 | #include <linux/types.h> | |
15 | #include <linux/page-flags.h> | |
16 | #include <linux/buffer_head.h> | |
39a53e0c JK |
17 | #include <linux/slab.h> |
18 | #include <linux/crc32.h> | |
19 | #include <linux/magic.h> | |
c2d715d1 | 20 | #include <linux/kobject.h> |
7bd59381 | 21 | #include <linux/sched.h> |
39307a8e | 22 | #include <linux/vmalloc.h> |
740432f8 | 23 | #include <linux/bio.h> |
d0239e1b | 24 | #include <linux/blkdev.h> |
0b81d077 | 25 | #include <linux/fscrypto.h> |
43b6573b | 26 | #include <crypto/hash.h> |
39a53e0c | 27 | |
5d56b671 | 28 | #ifdef CONFIG_F2FS_CHECK_FS |
9850cf4a | 29 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) |
5d56b671 | 30 | #else |
9850cf4a JK |
31 | #define f2fs_bug_on(sbi, condition) \ |
32 | do { \ | |
33 | if (unlikely(condition)) { \ | |
34 | WARN_ON(1); \ | |
caf0047e | 35 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ |
9850cf4a JK |
36 | } \ |
37 | } while (0) | |
5d56b671 JK |
38 | #endif |
39 | ||
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, |
2c63fead JK |
49 | FAULT_MAX, |
50 | }; | |
51 | ||
08796897 SY |
52 | struct f2fs_fault_info { |
53 | atomic_t inject_ops; | |
54 | unsigned int inject_rate; | |
55 | unsigned int inject_type; | |
56 | }; | |
57 | ||
58 | extern struct f2fs_fault_info f2fs_fault; | |
2c63fead | 59 | extern char *fault_name[FAULT_MAX]; |
08796897 | 60 | #define IS_FAULT_SET(type) (f2fs_fault.inject_type & (1 << (type))) |
2c63fead JK |
61 | |
62 | static inline bool time_to_inject(int type) | |
63 | { | |
08796897 SY |
64 | if (!f2fs_fault.inject_rate) |
65 | return false; | |
66 | if (type == FAULT_KMALLOC && !IS_FAULT_SET(type)) | |
67 | return false; | |
68 | else if (type == FAULT_PAGE_ALLOC && !IS_FAULT_SET(type)) | |
69 | return false; | |
70 | else if (type == FAULT_ALLOC_NID && !IS_FAULT_SET(type)) | |
71 | return false; | |
72 | else if (type == FAULT_ORPHAN && !IS_FAULT_SET(type)) | |
73 | return false; | |
74 | else if (type == FAULT_BLOCK && !IS_FAULT_SET(type)) | |
75 | return false; | |
76 | else if (type == FAULT_DIR_DEPTH && !IS_FAULT_SET(type)) | |
77 | return false; | |
53aa6bbf JK |
78 | else if (type == FAULT_EVICT_INODE && !IS_FAULT_SET(type)) |
79 | return false; | |
08796897 SY |
80 | |
81 | atomic_inc(&f2fs_fault.inject_ops); | |
82 | if (atomic_read(&f2fs_fault.inject_ops) >= f2fs_fault.inject_rate) { | |
83 | atomic_set(&f2fs_fault.inject_ops, 0); | |
2c63fead JK |
84 | printk("%sF2FS-fs : inject %s in %pF\n", |
85 | KERN_INFO, | |
86 | fault_name[type], | |
87 | __builtin_return_address(0)); | |
88 | return true; | |
89 | } | |
90 | return false; | |
91 | } | |
92 | #endif | |
93 | ||
39a53e0c JK |
94 | /* |
95 | * For mount options | |
96 | */ | |
97 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
98 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
99 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
100 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
101 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
102 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
103 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 104 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 105 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
34d67deb CY |
106 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
107 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
108 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
d5053a34 | 109 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
89672159 | 110 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
6aefd93b | 111 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
343f40f0 | 112 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 |
73faec4d | 113 | #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 |
36abef4e JK |
114 | #define F2FS_MOUNT_ADAPTIVE 0x00020000 |
115 | #define F2FS_MOUNT_LFS 0x00040000 | |
39a53e0c JK |
116 | |
117 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) | |
118 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) | |
119 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) | |
120 | ||
121 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
122 | typecheck(unsigned long long, b) && \ | |
123 | ((long long)((a) - (b)) > 0)) | |
124 | ||
a9841c4d JK |
125 | typedef u32 block_t; /* |
126 | * should not change u32, since it is the on-disk block | |
127 | * address format, __le32. | |
128 | */ | |
39a53e0c JK |
129 | typedef u32 nid_t; |
130 | ||
131 | struct f2fs_mount_info { | |
132 | unsigned int opt; | |
133 | }; | |
134 | ||
cde4de12 | 135 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
52763a4b | 136 | #define F2FS_FEATURE_HMSMR 0x0002 |
cde4de12 | 137 | |
76f105a2 JK |
138 | #define F2FS_HAS_FEATURE(sb, mask) \ |
139 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) | |
140 | #define F2FS_SET_FEATURE(sb, mask) \ | |
141 | F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask) | |
142 | #define F2FS_CLEAR_FEATURE(sb, mask) \ | |
143 | F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask) | |
144 | ||
39a53e0c JK |
145 | /* |
146 | * For checkpoint manager | |
147 | */ | |
148 | enum { | |
149 | NAT_BITMAP, | |
150 | SIT_BITMAP | |
151 | }; | |
152 | ||
75ab4cb8 JK |
153 | enum { |
154 | CP_UMOUNT, | |
119ee914 | 155 | CP_FASTBOOT, |
75ab4cb8 | 156 | CP_SYNC, |
10027551 | 157 | CP_RECOVERY, |
4b2fecc8 | 158 | CP_DISCARD, |
75ab4cb8 JK |
159 | }; |
160 | ||
2d9e9c32 | 161 | #define DEF_BATCHED_TRIM_SECTIONS 2 |
bba681cb JK |
162 | #define BATCHED_TRIM_SEGMENTS(sbi) \ |
163 | (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec) | |
a66cdd98 JK |
164 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
165 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
60b99b48 | 166 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
dcf25fe8 | 167 | #define DEF_IDLE_INTERVAL 5 /* 5 secs */ |
bba681cb | 168 | |
75ab4cb8 JK |
169 | struct cp_control { |
170 | int reason; | |
4b2fecc8 JK |
171 | __u64 trim_start; |
172 | __u64 trim_end; | |
173 | __u64 trim_minlen; | |
174 | __u64 trimmed; | |
75ab4cb8 JK |
175 | }; |
176 | ||
662befda | 177 | /* |
81c1a0f1 | 178 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
179 | */ |
180 | enum { | |
181 | META_CP, | |
182 | META_NAT, | |
81c1a0f1 | 183 | META_SIT, |
4c521f49 JK |
184 | META_SSA, |
185 | META_POR, | |
662befda CY |
186 | }; |
187 | ||
6451e041 JK |
188 | /* for the list of ino */ |
189 | enum { | |
190 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
191 | APPEND_INO, /* for append ino list */ |
192 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
193 | MAX_INO_ENTRY, /* max. list */ |
194 | }; | |
195 | ||
196 | struct ino_entry { | |
39a53e0c JK |
197 | struct list_head list; /* list head */ |
198 | nid_t ino; /* inode number */ | |
199 | }; | |
200 | ||
2710fd7e | 201 | /* for the list of inodes to be GCed */ |
06292073 | 202 | struct inode_entry { |
39a53e0c JK |
203 | struct list_head list; /* list head */ |
204 | struct inode *inode; /* vfs inode pointer */ | |
205 | }; | |
206 | ||
7fd9e544 JK |
207 | /* for the list of blockaddresses to be discarded */ |
208 | struct discard_entry { | |
209 | struct list_head list; /* list head */ | |
210 | block_t blkaddr; /* block address to be discarded */ | |
211 | int len; /* # of consecutive blocks of the discard */ | |
212 | }; | |
213 | ||
39a53e0c JK |
214 | /* for the list of fsync inodes, used only during recovery */ |
215 | struct fsync_inode_entry { | |
216 | struct list_head list; /* list head */ | |
217 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
218 | block_t blkaddr; /* block address locating the last fsync */ |
219 | block_t last_dentry; /* block address locating the last dentry */ | |
39a53e0c JK |
220 | }; |
221 | ||
dfc08a12 CY |
222 | #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats)) |
223 | #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits)) | |
39a53e0c | 224 | |
dfc08a12 CY |
225 | #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne) |
226 | #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid) | |
227 | #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se) | |
228 | #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno) | |
39a53e0c | 229 | |
dfc08a12 CY |
230 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
231 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) | |
309cc2b6 | 232 | |
dfc08a12 | 233 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 234 | { |
dfc08a12 CY |
235 | int before = nats_in_cursum(journal); |
236 | journal->n_nats = cpu_to_le16(before + i); | |
39a53e0c JK |
237 | return before; |
238 | } | |
239 | ||
dfc08a12 | 240 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 241 | { |
dfc08a12 CY |
242 | int before = sits_in_cursum(journal); |
243 | journal->n_sits = cpu_to_le16(before + i); | |
39a53e0c JK |
244 | return before; |
245 | } | |
246 | ||
dfc08a12 CY |
247 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
248 | int size, int type) | |
184a5cd2 CY |
249 | { |
250 | if (type == NAT_JOURNAL) | |
dfc08a12 CY |
251 | return size <= MAX_NAT_JENTRIES(journal); |
252 | return size <= MAX_SIT_JENTRIES(journal); | |
184a5cd2 CY |
253 | } |
254 | ||
e9750824 NJ |
255 | /* |
256 | * ioctl commands | |
257 | */ | |
88b88a66 JK |
258 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
259 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 260 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
261 | |
262 | #define F2FS_IOCTL_MAGIC 0xf5 | |
263 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
264 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 265 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
266 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
267 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
c1c1b583 | 268 | #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6) |
456b88e4 | 269 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
d323d005 | 270 | #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8) |
4dd6f977 JK |
271 | #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ |
272 | struct f2fs_move_range) | |
e9750824 | 273 | |
0b81d077 JK |
274 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
275 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY | |
276 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT | |
f424f664 | 277 | |
1abff93d JK |
278 | /* |
279 | * should be same as XFS_IOC_GOINGDOWN. | |
280 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
281 | */ | |
282 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
283 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
284 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
285 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
c912a829 | 286 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
1abff93d | 287 | |
e9750824 NJ |
288 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
289 | /* | |
290 | * ioctl commands in 32 bit emulation | |
291 | */ | |
04ef4b62 CY |
292 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
293 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
294 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION | |
e9750824 NJ |
295 | #endif |
296 | ||
d323d005 CY |
297 | struct f2fs_defragment { |
298 | u64 start; | |
299 | u64 len; | |
300 | }; | |
301 | ||
4dd6f977 JK |
302 | struct f2fs_move_range { |
303 | u32 dst_fd; /* destination fd */ | |
304 | u64 pos_in; /* start position in src_fd */ | |
305 | u64 pos_out; /* start position in dst_fd */ | |
306 | u64 len; /* size to move */ | |
307 | }; | |
308 | ||
39a53e0c JK |
309 | /* |
310 | * For INODE and NODE manager | |
311 | */ | |
7b3cd7d6 JK |
312 | /* for directory operations */ |
313 | struct f2fs_dentry_ptr { | |
d8c6822a | 314 | struct inode *inode; |
7b3cd7d6 JK |
315 | const void *bitmap; |
316 | struct f2fs_dir_entry *dentry; | |
317 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
318 | int max; | |
319 | }; | |
320 | ||
d8c6822a JK |
321 | static inline void make_dentry_ptr(struct inode *inode, |
322 | struct f2fs_dentry_ptr *d, void *src, int type) | |
7b3cd7d6 | 323 | { |
d8c6822a JK |
324 | d->inode = inode; |
325 | ||
7b3cd7d6 JK |
326 | if (type == 1) { |
327 | struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src; | |
328 | d->max = NR_DENTRY_IN_BLOCK; | |
329 | d->bitmap = &t->dentry_bitmap; | |
330 | d->dentry = t->dentry; | |
331 | d->filename = t->filename; | |
332 | } else { | |
333 | struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src; | |
334 | d->max = NR_INLINE_DENTRY; | |
335 | d->bitmap = &t->dentry_bitmap; | |
336 | d->dentry = t->dentry; | |
337 | d->filename = t->filename; | |
338 | } | |
339 | } | |
340 | ||
dbe6a5ff JK |
341 | /* |
342 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
343 | * as its node offset to distinguish from index node blocks. | |
344 | * But some bits are used to mark the node block. | |
345 | */ | |
346 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
347 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
348 | enum { |
349 | ALLOC_NODE, /* allocate a new node page if needed */ | |
350 | LOOKUP_NODE, /* look up a node without readahead */ | |
351 | LOOKUP_NODE_RA, /* | |
352 | * look up a node with readahead called | |
4f4124d0 | 353 | * by get_data_block. |
39a53e0c | 354 | */ |
266e97a8 JK |
355 | }; |
356 | ||
a6db67f0 | 357 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
39a53e0c | 358 | |
817202d9 CY |
359 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
360 | ||
13054c54 CY |
361 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
362 | #define EXT_TREE_VEC_SIZE 64 | |
363 | ||
39a53e0c | 364 | /* for in-memory extent cache entry */ |
13054c54 CY |
365 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
366 | ||
367 | /* number of extent info in extent cache we try to shrink */ | |
368 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 369 | |
39a53e0c | 370 | struct extent_info { |
13054c54 CY |
371 | unsigned int fofs; /* start offset in a file */ |
372 | u32 blk; /* start block address of the extent */ | |
373 | unsigned int len; /* length of the extent */ | |
374 | }; | |
375 | ||
376 | struct extent_node { | |
377 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
378 | struct list_head list; /* node in global extent list of sbi */ | |
379 | struct extent_info ei; /* extent info */ | |
201ef5e0 | 380 | struct extent_tree *et; /* extent tree pointer */ |
13054c54 CY |
381 | }; |
382 | ||
383 | struct extent_tree { | |
384 | nid_t ino; /* inode number */ | |
385 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 386 | struct extent_node *cached_en; /* recently accessed extent node */ |
3e72f721 | 387 | struct extent_info largest; /* largested extent info */ |
137d09f0 | 388 | struct list_head list; /* to be used by sbi->zombie_list */ |
13054c54 | 389 | rwlock_t lock; /* protect extent info rb-tree */ |
68e35385 | 390 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
39a53e0c JK |
391 | }; |
392 | ||
003a3e1d JK |
393 | /* |
394 | * This structure is taken from ext4_map_blocks. | |
395 | * | |
396 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
397 | */ | |
398 | #define F2FS_MAP_NEW (1 << BH_New) | |
399 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
7f63eb77 JK |
400 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
401 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
402 | F2FS_MAP_UNWRITTEN) | |
003a3e1d JK |
403 | |
404 | struct f2fs_map_blocks { | |
405 | block_t m_pblk; | |
406 | block_t m_lblk; | |
407 | unsigned int m_len; | |
408 | unsigned int m_flags; | |
da85985c | 409 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
003a3e1d JK |
410 | }; |
411 | ||
e2b4e2bc CY |
412 | /* for flag in get_data_block */ |
413 | #define F2FS_GET_BLOCK_READ 0 | |
414 | #define F2FS_GET_BLOCK_DIO 1 | |
415 | #define F2FS_GET_BLOCK_FIEMAP 2 | |
416 | #define F2FS_GET_BLOCK_BMAP 3 | |
b439b103 | 417 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
24b84912 | 418 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
e2b4e2bc | 419 | |
39a53e0c JK |
420 | /* |
421 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
422 | */ | |
423 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 424 | #define FADVISE_LOST_PINO_BIT 0x02 |
cde4de12 | 425 | #define FADVISE_ENCRYPT_BIT 0x04 |
e7d55452 | 426 | #define FADVISE_ENC_NAME_BIT 0x08 |
39a53e0c | 427 | |
b5492af7 JK |
428 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
429 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
430 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
431 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
432 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
433 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
cde4de12 JK |
434 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
435 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
436 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
e7d55452 JK |
437 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
438 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
cde4de12 | 439 | |
ab9fa662 JK |
440 | #define DEF_DIR_LEVEL 0 |
441 | ||
39a53e0c JK |
442 | struct f2fs_inode_info { |
443 | struct inode vfs_inode; /* serve a vfs inode */ | |
444 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
445 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 446 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 447 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 448 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
449 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
450 | ||
451 | /* Use below internally in f2fs*/ | |
452 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 453 | struct rw_semaphore i_sem; /* protect fi info */ |
1beba1b3 | 454 | struct percpu_counter dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
455 | f2fs_hash_t chash; /* hash value of given file name */ |
456 | unsigned int clevel; /* maximum level of given file name */ | |
457 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
e518ff81 | 458 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
26de9b11 | 459 | loff_t last_disk_size; /* lastly written file size */ |
88b88a66 | 460 | |
0f18b462 JK |
461 | struct list_head dirty_list; /* dirty list for dirs and files */ |
462 | struct list_head gdirty_list; /* linked in global dirty list */ | |
88b88a66 JK |
463 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
464 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
3e72f721 | 465 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
82e0a5aa | 466 | struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */ |
39a53e0c JK |
467 | }; |
468 | ||
469 | static inline void get_extent_info(struct extent_info *ext, | |
bd933d4f | 470 | struct f2fs_extent *i_ext) |
39a53e0c | 471 | { |
bd933d4f CY |
472 | ext->fofs = le32_to_cpu(i_ext->fofs); |
473 | ext->blk = le32_to_cpu(i_ext->blk); | |
474 | ext->len = le32_to_cpu(i_ext->len); | |
39a53e0c JK |
475 | } |
476 | ||
477 | static inline void set_raw_extent(struct extent_info *ext, | |
478 | struct f2fs_extent *i_ext) | |
479 | { | |
39a53e0c | 480 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 481 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 482 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
483 | } |
484 | ||
429511cd CY |
485 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
486 | u32 blk, unsigned int len) | |
487 | { | |
488 | ei->fofs = fofs; | |
489 | ei->blk = blk; | |
490 | ei->len = len; | |
491 | } | |
492 | ||
0bdee482 CY |
493 | static inline bool __is_extent_same(struct extent_info *ei1, |
494 | struct extent_info *ei2) | |
495 | { | |
496 | return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && | |
497 | ei1->len == ei2->len); | |
498 | } | |
499 | ||
429511cd CY |
500 | static inline bool __is_extent_mergeable(struct extent_info *back, |
501 | struct extent_info *front) | |
502 | { | |
503 | return (back->fofs + back->len == front->fofs && | |
504 | back->blk + back->len == front->blk); | |
505 | } | |
506 | ||
507 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
508 | struct extent_info *back) | |
509 | { | |
510 | return __is_extent_mergeable(back, cur); | |
511 | } | |
512 | ||
513 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
514 | struct extent_info *front) | |
515 | { | |
516 | return __is_extent_mergeable(cur, front); | |
517 | } | |
518 | ||
b56ab837 | 519 | extern void f2fs_mark_inode_dirty_sync(struct inode *); |
205b9822 JK |
520 | static inline void __try_update_largest_extent(struct inode *inode, |
521 | struct extent_tree *et, struct extent_node *en) | |
4abd3f5a | 522 | { |
205b9822 | 523 | if (en->ei.len > et->largest.len) { |
4abd3f5a | 524 | et->largest = en->ei; |
b56ab837 | 525 | f2fs_mark_inode_dirty_sync(inode); |
205b9822 | 526 | } |
4abd3f5a CY |
527 | } |
528 | ||
39a53e0c JK |
529 | struct f2fs_nm_info { |
530 | block_t nat_blkaddr; /* base disk address of NAT */ | |
531 | nid_t max_nid; /* maximum possible node ids */ | |
7ee0eeab | 532 | nid_t available_nids; /* maximum available node ids */ |
39a53e0c | 533 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 534 | unsigned int ram_thresh; /* control the memory footprint */ |
ea1a29a0 | 535 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
2304cb0c | 536 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
39a53e0c JK |
537 | |
538 | /* NAT cache management */ | |
539 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 540 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
b873b798 | 541 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 542 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 543 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 544 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
39a53e0c JK |
545 | |
546 | /* free node ids management */ | |
8a7ed66a | 547 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
39a53e0c JK |
548 | struct list_head free_nid_list; /* a list for free nids */ |
549 | spinlock_t free_nid_list_lock; /* protect free nid list */ | |
550 | unsigned int fcnt; /* the number of free node id */ | |
551 | struct mutex build_lock; /* lock for build free nids */ | |
552 | ||
553 | /* for checkpoint */ | |
554 | char *nat_bitmap; /* NAT bitmap pointer */ | |
555 | int bitmap_size; /* bitmap size */ | |
556 | }; | |
557 | ||
558 | /* | |
559 | * this structure is used as one of function parameters. | |
560 | * all the information are dedicated to a given direct node block determined | |
561 | * by the data offset in a file. | |
562 | */ | |
563 | struct dnode_of_data { | |
564 | struct inode *inode; /* vfs inode pointer */ | |
565 | struct page *inode_page; /* its inode page, NULL is possible */ | |
566 | struct page *node_page; /* cached direct node page */ | |
567 | nid_t nid; /* node id of the direct node block */ | |
568 | unsigned int ofs_in_node; /* data offset in the node page */ | |
569 | bool inode_page_locked; /* inode page is locked or not */ | |
93bae099 | 570 | bool node_changed; /* is node block changed */ |
3cf45747 CY |
571 | char cur_level; /* level of hole node page */ |
572 | char max_level; /* level of current page located */ | |
39a53e0c JK |
573 | block_t data_blkaddr; /* block address of the node block */ |
574 | }; | |
575 | ||
576 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
577 | struct page *ipage, struct page *npage, nid_t nid) | |
578 | { | |
d66d1f76 | 579 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
580 | dn->inode = inode; |
581 | dn->inode_page = ipage; | |
582 | dn->node_page = npage; | |
583 | dn->nid = nid; | |
39a53e0c JK |
584 | } |
585 | ||
586 | /* | |
587 | * For SIT manager | |
588 | * | |
589 | * By default, there are 6 active log areas across the whole main area. | |
590 | * When considering hot and cold data separation to reduce cleaning overhead, | |
591 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
592 | * respectively. | |
593 | * In the current design, you should not change the numbers intentionally. | |
594 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
595 | * logs individually according to the underlying devices. (default: 6) | |
596 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
597 | * data and 8 for node logs. | |
598 | */ | |
599 | #define NR_CURSEG_DATA_TYPE (3) | |
600 | #define NR_CURSEG_NODE_TYPE (3) | |
601 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
602 | ||
603 | enum { | |
604 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
605 | CURSEG_WARM_DATA, /* data blocks */ | |
606 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
607 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
608 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
609 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 JK |
610 | NO_CHECK_TYPE, |
611 | CURSEG_DIRECT_IO, /* to use for the direct IO path */ | |
39a53e0c JK |
612 | }; |
613 | ||
6b4afdd7 | 614 | struct flush_cmd { |
6b4afdd7 | 615 | struct completion wait; |
721bd4d5 | 616 | struct llist_node llnode; |
6b4afdd7 JK |
617 | int ret; |
618 | }; | |
619 | ||
a688b9d9 GZ |
620 | struct flush_cmd_control { |
621 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
622 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
0a87f664 | 623 | atomic_t submit_flush; /* # of issued flushes */ |
721bd4d5 GZ |
624 | struct llist_head issue_list; /* list for command issue */ |
625 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
626 | }; |
627 | ||
39a53e0c JK |
628 | struct f2fs_sm_info { |
629 | struct sit_info *sit_info; /* whole segment information */ | |
630 | struct free_segmap_info *free_info; /* free segment information */ | |
631 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
632 | struct curseg_info *curseg_array; /* active segment information */ | |
633 | ||
39a53e0c JK |
634 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
635 | block_t main_blkaddr; /* start block address of main area */ | |
636 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
637 | ||
638 | unsigned int segment_count; /* total # of segments */ | |
639 | unsigned int main_segments; /* # of segments in main area */ | |
640 | unsigned int reserved_segments; /* # of reserved segments */ | |
641 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
642 | |
643 | /* a threshold to reclaim prefree segments */ | |
644 | unsigned int rec_prefree_segments; | |
7fd9e544 JK |
645 | |
646 | /* for small discard management */ | |
647 | struct list_head discard_list; /* 4KB discard list */ | |
648 | int nr_discards; /* # of discards in the list */ | |
649 | int max_discards; /* max. discards to be issued */ | |
216fbd64 | 650 | |
bba681cb JK |
651 | /* for batched trimming */ |
652 | unsigned int trim_sections; /* # of sections to trim */ | |
653 | ||
184a5cd2 CY |
654 | struct list_head sit_entry_set; /* sit entry set list */ |
655 | ||
216fbd64 JK |
656 | unsigned int ipu_policy; /* in-place-update policy */ |
657 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 658 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
6b4afdd7 JK |
659 | |
660 | /* for flush command control */ | |
a688b9d9 GZ |
661 | struct flush_cmd_control *cmd_control_info; |
662 | ||
39a53e0c JK |
663 | }; |
664 | ||
39a53e0c JK |
665 | /* |
666 | * For superblock | |
667 | */ | |
668 | /* | |
669 | * COUNT_TYPE for monitoring | |
670 | * | |
671 | * f2fs monitors the number of several block types such as on-writeback, | |
672 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
673 | */ | |
674 | enum count_type { | |
39a53e0c | 675 | F2FS_DIRTY_DENTS, |
c227f912 | 676 | F2FS_DIRTY_DATA, |
39a53e0c JK |
677 | F2FS_DIRTY_NODES, |
678 | F2FS_DIRTY_META, | |
8dcf2ff7 | 679 | F2FS_INMEM_PAGES, |
0f18b462 | 680 | F2FS_DIRTY_IMETA, |
39a53e0c JK |
681 | NR_COUNT_TYPE, |
682 | }; | |
683 | ||
39a53e0c | 684 | /* |
e1c42045 | 685 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
686 | * The available types are: |
687 | * DATA User data pages. It operates as async mode. | |
688 | * NODE Node pages. It operates as async mode. | |
689 | * META FS metadata pages such as SIT, NAT, CP. | |
690 | * NR_PAGE_TYPE The number of page types. | |
691 | * META_FLUSH Make sure the previous pages are written | |
692 | * with waiting the bio's completion | |
693 | * ... Only can be used with META. | |
694 | */ | |
7d5e5109 | 695 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
696 | enum page_type { |
697 | DATA, | |
698 | NODE, | |
699 | META, | |
700 | NR_PAGE_TYPE, | |
701 | META_FLUSH, | |
8ce67cb0 JK |
702 | INMEM, /* the below types are used by tracepoints only. */ |
703 | INMEM_DROP, | |
28bc106b | 704 | INMEM_REVOKE, |
8ce67cb0 JK |
705 | IPU, |
706 | OPU, | |
39a53e0c JK |
707 | }; |
708 | ||
458e6197 | 709 | struct f2fs_io_info { |
05ca3632 | 710 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 | 711 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
04d328de MC |
712 | int op; /* contains REQ_OP_ */ |
713 | int op_flags; /* rq_flag_bits */ | |
7a9d7548 | 714 | block_t new_blkaddr; /* new block address to be written */ |
28bc106b | 715 | block_t old_blkaddr; /* old block address before Cow */ |
05ca3632 | 716 | struct page *page; /* page to be written */ |
4375a336 | 717 | struct page *encrypted_page; /* encrypted page */ |
458e6197 JK |
718 | }; |
719 | ||
04d328de | 720 | #define is_read_io(rw) (rw == READ) |
1ff7bd3b | 721 | struct f2fs_bio_info { |
458e6197 | 722 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
723 | struct bio *bio; /* bios to merge */ |
724 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 725 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 726 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
727 | }; |
728 | ||
c227f912 CY |
729 | enum inode_type { |
730 | DIR_INODE, /* for dirty dir inode */ | |
731 | FILE_INODE, /* for dirty regular/symlink inode */ | |
0f18b462 | 732 | DIRTY_META, /* for all dirtied inode metadata */ |
c227f912 CY |
733 | NR_INODE_TYPE, |
734 | }; | |
735 | ||
67298804 CY |
736 | /* for inner inode cache management */ |
737 | struct inode_management { | |
738 | struct radix_tree_root ino_root; /* ino entry array */ | |
739 | spinlock_t ino_lock; /* for ino entry lock */ | |
740 | struct list_head ino_list; /* inode list head */ | |
741 | unsigned long ino_num; /* number of entries */ | |
742 | }; | |
743 | ||
caf0047e CY |
744 | /* For s_flag in struct f2fs_sb_info */ |
745 | enum { | |
746 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
747 | SBI_IS_CLOSE, /* specify unmounting */ | |
748 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
749 | SBI_POR_DOING, /* recovery is doing or not */ | |
df728b0f | 750 | SBI_NEED_SB_WRITE, /* need to recover superblock */ |
caf0047e CY |
751 | }; |
752 | ||
6beceb54 JK |
753 | enum { |
754 | CP_TIME, | |
d0239e1b | 755 | REQ_TIME, |
6beceb54 JK |
756 | MAX_TIME, |
757 | }; | |
758 | ||
b5a7aef1 JK |
759 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
760 | #define F2FS_KEY_DESC_PREFIX "f2fs:" | |
761 | #define F2FS_KEY_DESC_PREFIX_SIZE 5 | |
762 | #endif | |
39a53e0c JK |
763 | struct f2fs_sb_info { |
764 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 765 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c | 766 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
e8240f65 | 767 | int valid_super_block; /* valid super block no */ |
caf0047e | 768 | int s_flag; /* flags for sbi */ |
39a53e0c | 769 | |
b5a7aef1 JK |
770 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
771 | u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE]; | |
772 | u8 key_prefix_size; | |
773 | #endif | |
39a53e0c JK |
774 | /* for node-related operations */ |
775 | struct f2fs_nm_info *nm_info; /* node manager */ | |
776 | struct inode *node_inode; /* cache node blocks */ | |
777 | ||
778 | /* for segment-related operations */ | |
779 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
780 | |
781 | /* for bio operations */ | |
924b720b | 782 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 783 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
7dfeaa32 | 784 | struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */ |
39a53e0c JK |
785 | |
786 | /* for checkpoint */ | |
787 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
788 | struct inode *meta_inode; /* cache meta blocks */ | |
39936837 | 789 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
b873b798 | 790 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 791 | struct rw_semaphore node_write; /* locking node writes */ |
fb51b5ef | 792 | wait_queue_head_t cp_wait; |
6beceb54 JK |
793 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
794 | long interval_time[MAX_TIME]; /* to store thresholds */ | |
39a53e0c | 795 | |
67298804 | 796 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
797 | |
798 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 799 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c | 800 | |
c227f912 CY |
801 | /* for inode management */ |
802 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ | |
803 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ | |
39a53e0c | 804 | |
13054c54 CY |
805 | /* for extent tree cache */ |
806 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
807 | struct rw_semaphore extent_tree_lock; /* locking extent radix tree */ | |
808 | struct list_head extent_list; /* lru list for shrinker */ | |
809 | spinlock_t extent_lock; /* locking extent lru list */ | |
7441ccef | 810 | atomic_t total_ext_tree; /* extent tree count */ |
137d09f0 | 811 | struct list_head zombie_list; /* extent zombie tree list */ |
74fd8d99 | 812 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
13054c54 CY |
813 | atomic_t total_ext_node; /* extent info count */ |
814 | ||
e1c42045 | 815 | /* basic filesystem units */ |
39a53e0c JK |
816 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
817 | unsigned int log_blocksize; /* log2 block size */ | |
818 | unsigned int blocksize; /* block size */ | |
819 | unsigned int root_ino_num; /* root inode number*/ | |
820 | unsigned int node_ino_num; /* node inode number*/ | |
821 | unsigned int meta_ino_num; /* meta inode number*/ | |
822 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
823 | unsigned int blocks_per_seg; /* blocks per segment */ | |
824 | unsigned int segs_per_sec; /* segments per section */ | |
825 | unsigned int secs_per_zone; /* sections per zone */ | |
826 | unsigned int total_sections; /* total section count */ | |
827 | unsigned int total_node_count; /* total node block count */ | |
828 | unsigned int total_valid_node_count; /* valid node block count */ | |
e0afc4d6 | 829 | loff_t max_file_blocks; /* max block index of file */ |
39a53e0c | 830 | int active_logs; /* # of active logs */ |
ab9fa662 | 831 | int dir_level; /* directory level */ |
39a53e0c JK |
832 | |
833 | block_t user_block_count; /* # of user blocks */ | |
834 | block_t total_valid_block_count; /* # of valid blocks */ | |
a66cdd98 | 835 | block_t discard_blks; /* discard command candidats */ |
39a53e0c JK |
836 | block_t last_valid_block_count; /* for recovery */ |
837 | u32 s_next_generation; /* for NFS support */ | |
f5730184 | 838 | atomic_t nr_wb_bios; /* # of writeback bios */ |
523be8a6 JK |
839 | |
840 | /* # of pages, see count_type */ | |
841 | struct percpu_counter nr_pages[NR_COUNT_TYPE]; | |
41382ec4 JK |
842 | /* # of allocated blocks */ |
843 | struct percpu_counter alloc_valid_block_count; | |
39a53e0c | 844 | |
513c5f37 JK |
845 | /* valid inode count */ |
846 | struct percpu_counter total_valid_inode_count; | |
847 | ||
39a53e0c JK |
848 | struct f2fs_mount_info mount_opt; /* mount options */ |
849 | ||
850 | /* for cleaning operations */ | |
851 | struct mutex gc_mutex; /* mutex for GC */ | |
852 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 853 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 854 | |
b1c57c1c JK |
855 | /* maximum # of trials to find a victim segment for SSR and GC */ |
856 | unsigned int max_victim_search; | |
857 | ||
39a53e0c JK |
858 | /* |
859 | * for stat information. | |
860 | * one is for the LFS mode, and the other is for the SSR mode. | |
861 | */ | |
35b09d82 | 862 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
863 | struct f2fs_stat_info *stat_info; /* FS status information */ |
864 | unsigned int segment_count[2]; /* # of allocated segments */ | |
865 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 866 | atomic_t inplace_count; /* # of inplace update */ |
5b7ee374 CY |
867 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
868 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
869 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
870 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
d5e8f6c9 | 871 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
03e14d52 CY |
872 | atomic_t inline_inode; /* # of inline_data inodes */ |
873 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
39a53e0c | 874 | int bg_gc; /* background gc calls */ |
33fbd510 | 875 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
35b09d82 NJ |
876 | #endif |
877 | unsigned int last_victim[2]; /* last victim segment # */ | |
39a53e0c | 878 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
879 | |
880 | /* For sysfs suppport */ | |
881 | struct kobject s_kobj; | |
882 | struct completion s_kobj_unregister; | |
2658e50d JK |
883 | |
884 | /* For shrinker support */ | |
885 | struct list_head s_list; | |
886 | struct mutex umount_mutex; | |
887 | unsigned int shrinker_run_no; | |
8f1dbbbb SL |
888 | |
889 | /* For write statistics */ | |
890 | u64 sectors_written_start; | |
891 | u64 kbytes_written; | |
43b6573b KM |
892 | |
893 | /* Reference to checksum algorithm driver via cryptoapi */ | |
894 | struct crypto_shash *s_chksum_driver; | |
39a53e0c JK |
895 | }; |
896 | ||
8f1dbbbb SL |
897 | /* For write statistics. Suppose sector size is 512 bytes, |
898 | * and the return value is in kbytes. s is of struct f2fs_sb_info. | |
899 | */ | |
900 | #define BD_PART_WRITTEN(s) \ | |
901 | (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \ | |
902 | s->sectors_written_start) >> 1) | |
903 | ||
6beceb54 JK |
904 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
905 | { | |
906 | sbi->last_time[type] = jiffies; | |
907 | } | |
908 | ||
909 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) | |
910 | { | |
911 | struct timespec ts = {sbi->interval_time[type], 0}; | |
912 | unsigned long interval = timespec_to_jiffies(&ts); | |
913 | ||
914 | return time_after(jiffies, sbi->last_time[type] + interval); | |
915 | } | |
916 | ||
d0239e1b JK |
917 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
918 | { | |
919 | struct block_device *bdev = sbi->sb->s_bdev; | |
920 | struct request_queue *q = bdev_get_queue(bdev); | |
921 | struct request_list *rl = &q->root_rl; | |
922 | ||
923 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) | |
924 | return 0; | |
925 | ||
926 | return f2fs_time_over(sbi, REQ_TIME); | |
927 | } | |
928 | ||
39a53e0c JK |
929 | /* |
930 | * Inline functions | |
931 | */ | |
43b6573b KM |
932 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
933 | unsigned int length) | |
934 | { | |
935 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); | |
936 | u32 *ctx = (u32 *)shash_desc_ctx(shash); | |
937 | int err; | |
938 | ||
939 | shash->tfm = sbi->s_chksum_driver; | |
940 | shash->flags = 0; | |
941 | *ctx = F2FS_SUPER_MAGIC; | |
942 | ||
943 | err = crypto_shash_update(shash, address, length); | |
944 | BUG_ON(err); | |
945 | ||
946 | return *ctx; | |
947 | } | |
948 | ||
949 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, | |
950 | void *buf, size_t buf_size) | |
951 | { | |
952 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; | |
953 | } | |
954 | ||
39a53e0c JK |
955 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
956 | { | |
957 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
958 | } | |
959 | ||
960 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
961 | { | |
962 | return sb->s_fs_info; | |
963 | } | |
964 | ||
4081363f JK |
965 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
966 | { | |
967 | return F2FS_SB(inode->i_sb); | |
968 | } | |
969 | ||
970 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
971 | { | |
972 | return F2FS_I_SB(mapping->host); | |
973 | } | |
974 | ||
975 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
976 | { | |
977 | return F2FS_M_SB(page->mapping); | |
978 | } | |
979 | ||
39a53e0c JK |
980 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
981 | { | |
982 | return (struct f2fs_super_block *)(sbi->raw_super); | |
983 | } | |
984 | ||
985 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
986 | { | |
987 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
988 | } | |
989 | ||
45590710 GZ |
990 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
991 | { | |
992 | return (struct f2fs_node *)page_address(page); | |
993 | } | |
994 | ||
58bfaf44 JK |
995 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
996 | { | |
997 | return &((struct f2fs_node *)page_address(page))->i; | |
998 | } | |
999 | ||
39a53e0c JK |
1000 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
1001 | { | |
1002 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
1003 | } | |
1004 | ||
1005 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
1006 | { | |
1007 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
1008 | } | |
1009 | ||
1010 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
1011 | { | |
1012 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
1013 | } | |
1014 | ||
1015 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
1016 | { | |
1017 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
1018 | } | |
1019 | ||
1020 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
1021 | { | |
1022 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
1023 | } | |
1024 | ||
9df27d98 GZ |
1025 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
1026 | { | |
1027 | return sbi->meta_inode->i_mapping; | |
1028 | } | |
1029 | ||
4ef51a8f JK |
1030 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
1031 | { | |
1032 | return sbi->node_inode->i_mapping; | |
1033 | } | |
1034 | ||
caf0047e CY |
1035 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
1036 | { | |
1037 | return sbi->s_flag & (0x01 << type); | |
1038 | } | |
1039 | ||
1040 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 1041 | { |
caf0047e | 1042 | sbi->s_flag |= (0x01 << type); |
39a53e0c JK |
1043 | } |
1044 | ||
caf0047e | 1045 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 1046 | { |
caf0047e | 1047 | sbi->s_flag &= ~(0x01 << type); |
39a53e0c JK |
1048 | } |
1049 | ||
d71b5564 JK |
1050 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
1051 | { | |
1052 | return le64_to_cpu(cp->checkpoint_ver); | |
1053 | } | |
1054 | ||
25ca923b JK |
1055 | static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
1056 | { | |
1057 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1058 | return ckpt_flags & f; | |
1059 | } | |
1060 | ||
1061 | static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1062 | { | |
1063 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1064 | ckpt_flags |= f; | |
1065 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1066 | } | |
1067 | ||
1068 | static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1069 | { | |
1070 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
1071 | ckpt_flags &= (~f); | |
1072 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1073 | } | |
1074 | ||
3e025740 JK |
1075 | static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi) |
1076 | { | |
1077 | struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev); | |
1078 | ||
1079 | return blk_queue_discard(q); | |
1080 | } | |
1081 | ||
e479556b | 1082 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 1083 | { |
b873b798 | 1084 | down_read(&sbi->cp_rwsem); |
39936837 JK |
1085 | } |
1086 | ||
e479556b | 1087 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 1088 | { |
b873b798 | 1089 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
1090 | } |
1091 | ||
e479556b | 1092 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 1093 | { |
b873b798 | 1094 | down_write(&sbi->cp_rwsem); |
39936837 JK |
1095 | } |
1096 | ||
e479556b | 1097 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 1098 | { |
b873b798 | 1099 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
1100 | } |
1101 | ||
119ee914 JK |
1102 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
1103 | { | |
1104 | int reason = CP_SYNC; | |
1105 | ||
1106 | if (test_opt(sbi, FASTBOOT)) | |
1107 | reason = CP_FASTBOOT; | |
1108 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
1109 | reason = CP_UMOUNT; | |
1110 | return reason; | |
1111 | } | |
1112 | ||
1113 | static inline bool __remain_node_summaries(int reason) | |
1114 | { | |
1115 | return (reason == CP_UMOUNT || reason == CP_FASTBOOT); | |
1116 | } | |
1117 | ||
1118 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
1119 | { | |
1120 | return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) || | |
1121 | is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG)); | |
1122 | } | |
1123 | ||
39a53e0c JK |
1124 | /* |
1125 | * Check whether the given nid is within node id range. | |
1126 | */ | |
064e0823 | 1127 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 1128 | { |
d6b7d4b3 CY |
1129 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
1130 | return -EINVAL; | |
cfb271d4 | 1131 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
1132 | return -EINVAL; |
1133 | return 0; | |
39a53e0c JK |
1134 | } |
1135 | ||
1136 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
1137 | ||
1138 | /* | |
1139 | * Check whether the inode has blocks or not | |
1140 | */ | |
1141 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1142 | { | |
1143 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 1144 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 1145 | else |
6c311ec6 | 1146 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
1147 | } |
1148 | ||
4bc8e9bc CY |
1149 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
1150 | { | |
1151 | return ofs == XATTR_NODE_OFFSET; | |
1152 | } | |
1153 | ||
8edd03c8 | 1154 | static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool); |
39a53e0c | 1155 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
46008c6d | 1156 | struct inode *inode, blkcnt_t *count) |
39a53e0c | 1157 | { |
dd11a5df | 1158 | blkcnt_t diff; |
39a53e0c | 1159 | |
cb78942b | 1160 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
2555a2d5 | 1161 | if (time_to_inject(FAULT_BLOCK)) |
cb78942b | 1162 | return false; |
cb78942b | 1163 | #endif |
dd11a5df JK |
1164 | /* |
1165 | * let's increase this in prior to actual block count change in order | |
1166 | * for f2fs_sync_file to avoid data races when deciding checkpoint. | |
1167 | */ | |
1168 | percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); | |
1169 | ||
2555a2d5 JK |
1170 | spin_lock(&sbi->stat_lock); |
1171 | sbi->total_valid_block_count += (block_t)(*count); | |
1172 | if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) { | |
dd11a5df JK |
1173 | diff = sbi->total_valid_block_count - sbi->user_block_count; |
1174 | *count -= diff; | |
2555a2d5 | 1175 | sbi->total_valid_block_count = sbi->user_block_count; |
46008c6d CY |
1176 | if (!*count) { |
1177 | spin_unlock(&sbi->stat_lock); | |
dd11a5df | 1178 | percpu_counter_sub(&sbi->alloc_valid_block_count, diff); |
46008c6d CY |
1179 | return false; |
1180 | } | |
39a53e0c | 1181 | } |
39a53e0c | 1182 | spin_unlock(&sbi->stat_lock); |
41382ec4 | 1183 | |
2555a2d5 | 1184 | f2fs_i_blocks_write(inode, *count, true); |
39a53e0c JK |
1185 | return true; |
1186 | } | |
1187 | ||
da19b0dc | 1188 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
1189 | struct inode *inode, |
1190 | blkcnt_t count) | |
1191 | { | |
1192 | spin_lock(&sbi->stat_lock); | |
9850cf4a JK |
1193 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
1194 | f2fs_bug_on(sbi, inode->i_blocks < count); | |
39a53e0c JK |
1195 | sbi->total_valid_block_count -= (block_t)count; |
1196 | spin_unlock(&sbi->stat_lock); | |
2555a2d5 | 1197 | f2fs_i_blocks_write(inode, count, false); |
39a53e0c JK |
1198 | } |
1199 | ||
1200 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1201 | { | |
523be8a6 | 1202 | percpu_counter_inc(&sbi->nr_pages[count_type]); |
7c4abcbe CY |
1203 | |
1204 | if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES) | |
1205 | return; | |
1206 | ||
caf0047e | 1207 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
1208 | } |
1209 | ||
a7ffdbe2 | 1210 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 1211 | { |
1beba1b3 | 1212 | percpu_counter_inc(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1213 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1214 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1215 | } |
1216 | ||
1217 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1218 | { | |
523be8a6 | 1219 | percpu_counter_dec(&sbi->nr_pages[count_type]); |
39a53e0c JK |
1220 | } |
1221 | ||
a7ffdbe2 | 1222 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 1223 | { |
5ac9f36f CY |
1224 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1225 | !S_ISLNK(inode->i_mode)) | |
1fe54f9d JK |
1226 | return; |
1227 | ||
1beba1b3 | 1228 | percpu_counter_dec(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1229 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1230 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1231 | } |
1232 | ||
523be8a6 | 1233 | static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) |
39a53e0c | 1234 | { |
523be8a6 | 1235 | return percpu_counter_sum_positive(&sbi->nr_pages[count_type]); |
39a53e0c JK |
1236 | } |
1237 | ||
1beba1b3 | 1238 | static inline s64 get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1239 | { |
1beba1b3 | 1240 | return percpu_counter_sum_positive(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1241 | } |
1242 | ||
5ac206cf NJ |
1243 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1244 | { | |
3519e3f9 | 1245 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
523be8a6 JK |
1246 | unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> |
1247 | sbi->log_blocks_per_seg; | |
1248 | ||
1249 | return segs / sbi->segs_per_sec; | |
5ac206cf NJ |
1250 | } |
1251 | ||
39a53e0c JK |
1252 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1253 | { | |
8b8343fa | 1254 | return sbi->total_valid_block_count; |
39a53e0c JK |
1255 | } |
1256 | ||
f83a2584 YH |
1257 | static inline block_t discard_blocks(struct f2fs_sb_info *sbi) |
1258 | { | |
1259 | return sbi->discard_blks; | |
1260 | } | |
1261 | ||
39a53e0c JK |
1262 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) |
1263 | { | |
1264 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1265 | ||
1266 | /* return NAT or SIT bitmap */ | |
1267 | if (flag == NAT_BITMAP) | |
1268 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1269 | else if (flag == SIT_BITMAP) | |
1270 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1271 | ||
1272 | return 0; | |
1273 | } | |
1274 | ||
55141486 WL |
1275 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1276 | { | |
1277 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1278 | } | |
1279 | ||
39a53e0c JK |
1280 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1281 | { | |
1282 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1283 | int offset; |
1284 | ||
55141486 | 1285 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1286 | if (flag == NAT_BITMAP) |
1287 | return &ckpt->sit_nat_version_bitmap; | |
1288 | else | |
65b85ccc | 1289 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1290 | } else { |
1291 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1292 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1293 | return &ckpt->sit_nat_version_bitmap + offset; |
1294 | } | |
39a53e0c JK |
1295 | } |
1296 | ||
1297 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1298 | { | |
1299 | block_t start_addr; | |
1300 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d71b5564 | 1301 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
39a53e0c | 1302 | |
25ca923b | 1303 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c JK |
1304 | |
1305 | /* | |
1306 | * odd numbered checkpoint should at cp segment 0 | |
e1c42045 | 1307 | * and even segment must be at cp segment 1 |
39a53e0c JK |
1308 | */ |
1309 | if (!(ckpt_version & 1)) | |
1310 | start_addr += sbi->blocks_per_seg; | |
1311 | ||
1312 | return start_addr; | |
1313 | } | |
1314 | ||
1315 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
1316 | { | |
1317 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1318 | } | |
1319 | ||
1320 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1321 | struct inode *inode) |
39a53e0c JK |
1322 | { |
1323 | block_t valid_block_count; | |
1324 | unsigned int valid_node_count; | |
1325 | ||
1326 | spin_lock(&sbi->stat_lock); | |
1327 | ||
ef86d709 | 1328 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 1329 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1330 | spin_unlock(&sbi->stat_lock); |
1331 | return false; | |
1332 | } | |
1333 | ||
ef86d709 | 1334 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1335 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1336 | spin_unlock(&sbi->stat_lock); |
1337 | return false; | |
1338 | } | |
1339 | ||
1340 | if (inode) | |
8edd03c8 | 1341 | f2fs_i_blocks_write(inode, 1, true); |
ef86d709 | 1342 | |
ef86d709 GZ |
1343 | sbi->total_valid_node_count++; |
1344 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1345 | spin_unlock(&sbi->stat_lock); |
1346 | ||
41382ec4 | 1347 | percpu_counter_inc(&sbi->alloc_valid_block_count); |
39a53e0c JK |
1348 | return true; |
1349 | } | |
1350 | ||
1351 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1352 | struct inode *inode) |
39a53e0c JK |
1353 | { |
1354 | spin_lock(&sbi->stat_lock); | |
1355 | ||
9850cf4a JK |
1356 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1357 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1358 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1359 | |
8edd03c8 | 1360 | f2fs_i_blocks_write(inode, 1, false); |
ef86d709 GZ |
1361 | sbi->total_valid_node_count--; |
1362 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1363 | |
1364 | spin_unlock(&sbi->stat_lock); | |
1365 | } | |
1366 | ||
1367 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1368 | { | |
8b8343fa | 1369 | return sbi->total_valid_node_count; |
39a53e0c JK |
1370 | } |
1371 | ||
1372 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1373 | { | |
513c5f37 | 1374 | percpu_counter_inc(&sbi->total_valid_inode_count); |
39a53e0c JK |
1375 | } |
1376 | ||
0e80220a | 1377 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c | 1378 | { |
513c5f37 | 1379 | percpu_counter_dec(&sbi->total_valid_inode_count); |
39a53e0c JK |
1380 | } |
1381 | ||
513c5f37 | 1382 | static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c | 1383 | { |
513c5f37 | 1384 | return percpu_counter_sum_positive(&sbi->total_valid_inode_count); |
39a53e0c JK |
1385 | } |
1386 | ||
a56c7c6f JK |
1387 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
1388 | pgoff_t index, bool for_write) | |
1389 | { | |
c41f3cc3 JK |
1390 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1391 | struct page *page = find_lock_page(mapping, index); | |
1392 | if (page) | |
1393 | return page; | |
1394 | ||
1395 | if (time_to_inject(FAULT_PAGE_ALLOC)) | |
1396 | return NULL; | |
1397 | #endif | |
a56c7c6f JK |
1398 | if (!for_write) |
1399 | return grab_cache_page(mapping, index); | |
1400 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); | |
1401 | } | |
1402 | ||
6e2c64ad JK |
1403 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
1404 | { | |
1405 | char *src_kaddr = kmap(src); | |
1406 | char *dst_kaddr = kmap(dst); | |
1407 | ||
1408 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); | |
1409 | kunmap(dst); | |
1410 | kunmap(src); | |
1411 | } | |
1412 | ||
39a53e0c JK |
1413 | static inline void f2fs_put_page(struct page *page, int unlock) |
1414 | { | |
031fa8cc | 1415 | if (!page) |
39a53e0c JK |
1416 | return; |
1417 | ||
1418 | if (unlock) { | |
9850cf4a | 1419 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1420 | unlock_page(page); |
1421 | } | |
09cbfeaf | 1422 | put_page(page); |
39a53e0c JK |
1423 | } |
1424 | ||
1425 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1426 | { | |
1427 | if (dn->node_page) | |
1428 | f2fs_put_page(dn->node_page, 1); | |
1429 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1430 | f2fs_put_page(dn->inode_page, 0); | |
1431 | dn->node_page = NULL; | |
1432 | dn->inode_page = NULL; | |
1433 | } | |
1434 | ||
1435 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1436 | size_t size) |
39a53e0c | 1437 | { |
e8512d2e | 1438 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1439 | } |
1440 | ||
7bd59381 GZ |
1441 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1442 | gfp_t flags) | |
1443 | { | |
1444 | void *entry; | |
7bd59381 | 1445 | |
80c54505 JK |
1446 | entry = kmem_cache_alloc(cachep, flags); |
1447 | if (!entry) | |
1448 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
7bd59381 GZ |
1449 | return entry; |
1450 | } | |
1451 | ||
740432f8 JK |
1452 | static inline struct bio *f2fs_bio_alloc(int npages) |
1453 | { | |
1454 | struct bio *bio; | |
1455 | ||
1456 | /* No failure on bio allocation */ | |
740432f8 | 1457 | bio = bio_alloc(GFP_NOIO, npages); |
80c54505 JK |
1458 | if (!bio) |
1459 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); | |
740432f8 JK |
1460 | return bio; |
1461 | } | |
1462 | ||
9be32d72 JK |
1463 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1464 | unsigned long index, void *item) | |
1465 | { | |
1466 | while (radix_tree_insert(root, index, item)) | |
1467 | cond_resched(); | |
1468 | } | |
1469 | ||
39a53e0c JK |
1470 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1471 | ||
1472 | static inline bool IS_INODE(struct page *page) | |
1473 | { | |
45590710 | 1474 | struct f2fs_node *p = F2FS_NODE(page); |
39a53e0c JK |
1475 | return RAW_IS_INODE(p); |
1476 | } | |
1477 | ||
1478 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1479 | { | |
1480 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1481 | } | |
1482 | ||
1483 | static inline block_t datablock_addr(struct page *node_page, | |
1484 | unsigned int offset) | |
1485 | { | |
1486 | struct f2fs_node *raw_node; | |
1487 | __le32 *addr_array; | |
45590710 | 1488 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1489 | addr_array = blkaddr_in_node(raw_node); |
1490 | return le32_to_cpu(addr_array[offset]); | |
1491 | } | |
1492 | ||
1493 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1494 | { | |
1495 | int mask; | |
1496 | ||
1497 | addr += (nr >> 3); | |
1498 | mask = 1 << (7 - (nr & 0x07)); | |
1499 | return mask & *addr; | |
1500 | } | |
1501 | ||
a66cdd98 JK |
1502 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1503 | { | |
1504 | int mask; | |
1505 | ||
1506 | addr += (nr >> 3); | |
1507 | mask = 1 << (7 - (nr & 0x07)); | |
1508 | *addr |= mask; | |
1509 | } | |
1510 | ||
1511 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
1512 | { | |
1513 | int mask; | |
1514 | ||
1515 | addr += (nr >> 3); | |
1516 | mask = 1 << (7 - (nr & 0x07)); | |
1517 | *addr &= ~mask; | |
1518 | } | |
1519 | ||
52aca074 | 1520 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1521 | { |
1522 | int mask; | |
1523 | int ret; | |
1524 | ||
1525 | addr += (nr >> 3); | |
1526 | mask = 1 << (7 - (nr & 0x07)); | |
1527 | ret = mask & *addr; | |
1528 | *addr |= mask; | |
1529 | return ret; | |
1530 | } | |
1531 | ||
52aca074 | 1532 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1533 | { |
1534 | int mask; | |
1535 | int ret; | |
1536 | ||
1537 | addr += (nr >> 3); | |
1538 | mask = 1 << (7 - (nr & 0x07)); | |
1539 | ret = mask & *addr; | |
1540 | *addr &= ~mask; | |
1541 | return ret; | |
1542 | } | |
1543 | ||
c6ac4c0e GZ |
1544 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1545 | { | |
1546 | int mask; | |
1547 | ||
1548 | addr += (nr >> 3); | |
1549 | mask = 1 << (7 - (nr & 0x07)); | |
1550 | *addr ^= mask; | |
1551 | } | |
1552 | ||
39a53e0c JK |
1553 | /* used for f2fs_inode_info->flags */ |
1554 | enum { | |
1555 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1556 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
26de9b11 | 1557 | FI_AUTO_RECOVER, /* indicate inode is recoverable */ |
ed57c27f | 1558 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1559 | FI_INC_LINK, /* need to increment i_nlink */ |
1560 | FI_ACL_MODE, /* indicate acl mode */ | |
1561 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
c9b63bd0 | 1562 | FI_FREE_NID, /* free allocated nide */ |
c11abd1a | 1563 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1564 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1565 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1566 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1567 | FI_APPEND_WRITE, /* inode has appended data */ |
1568 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1569 | FI_NEED_IPU, /* used for ipu per file */ |
1570 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
02a1335f | 1571 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1572 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1573 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1574 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1575 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
d323d005 | 1576 | FI_DO_DEFRAG, /* indicate defragment is running */ |
c227f912 | 1577 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
39a53e0c JK |
1578 | }; |
1579 | ||
205b9822 JK |
1580 | static inline void __mark_inode_dirty_flag(struct inode *inode, |
1581 | int flag, bool set) | |
1582 | { | |
1583 | switch (flag) { | |
1584 | case FI_INLINE_XATTR: | |
1585 | case FI_INLINE_DATA: | |
1586 | case FI_INLINE_DENTRY: | |
1587 | if (set) | |
1588 | return; | |
1589 | case FI_DATA_EXIST: | |
1590 | case FI_INLINE_DOTS: | |
b56ab837 | 1591 | f2fs_mark_inode_dirty_sync(inode); |
205b9822 JK |
1592 | } |
1593 | } | |
1594 | ||
91942321 | 1595 | static inline void set_inode_flag(struct inode *inode, int flag) |
39a53e0c | 1596 | { |
91942321 JK |
1597 | if (!test_bit(flag, &F2FS_I(inode)->flags)) |
1598 | set_bit(flag, &F2FS_I(inode)->flags); | |
205b9822 | 1599 | __mark_inode_dirty_flag(inode, flag, true); |
39a53e0c JK |
1600 | } |
1601 | ||
91942321 | 1602 | static inline int is_inode_flag_set(struct inode *inode, int flag) |
39a53e0c | 1603 | { |
91942321 | 1604 | return test_bit(flag, &F2FS_I(inode)->flags); |
39a53e0c JK |
1605 | } |
1606 | ||
91942321 | 1607 | static inline void clear_inode_flag(struct inode *inode, int flag) |
39a53e0c | 1608 | { |
91942321 JK |
1609 | if (test_bit(flag, &F2FS_I(inode)->flags)) |
1610 | clear_bit(flag, &F2FS_I(inode)->flags); | |
205b9822 | 1611 | __mark_inode_dirty_flag(inode, flag, false); |
39a53e0c JK |
1612 | } |
1613 | ||
91942321 | 1614 | static inline void set_acl_inode(struct inode *inode, umode_t mode) |
39a53e0c | 1615 | { |
91942321 JK |
1616 | F2FS_I(inode)->i_acl_mode = mode; |
1617 | set_inode_flag(inode, FI_ACL_MODE); | |
b56ab837 | 1618 | f2fs_mark_inode_dirty_sync(inode); |
39a53e0c JK |
1619 | } |
1620 | ||
a1961246 | 1621 | static inline void f2fs_i_links_write(struct inode *inode, bool inc) |
39a53e0c | 1622 | { |
a1961246 JK |
1623 | if (inc) |
1624 | inc_nlink(inode); | |
1625 | else | |
1626 | drop_nlink(inode); | |
b56ab837 | 1627 | f2fs_mark_inode_dirty_sync(inode); |
a1961246 JK |
1628 | } |
1629 | ||
8edd03c8 JK |
1630 | static inline void f2fs_i_blocks_write(struct inode *inode, |
1631 | blkcnt_t diff, bool add) | |
1632 | { | |
26de9b11 JK |
1633 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
1634 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
1635 | ||
8edd03c8 JK |
1636 | inode->i_blocks = add ? inode->i_blocks + diff : |
1637 | inode->i_blocks - diff; | |
b56ab837 | 1638 | f2fs_mark_inode_dirty_sync(inode); |
26de9b11 JK |
1639 | if (clean || recover) |
1640 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
8edd03c8 JK |
1641 | } |
1642 | ||
fc9581c8 JK |
1643 | static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) |
1644 | { | |
26de9b11 JK |
1645 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
1646 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
1647 | ||
fc9581c8 JK |
1648 | if (i_size_read(inode) == i_size) |
1649 | return; | |
1650 | ||
1651 | i_size_write(inode, i_size); | |
b56ab837 | 1652 | f2fs_mark_inode_dirty_sync(inode); |
26de9b11 JK |
1653 | if (clean || recover) |
1654 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
39a53e0c JK |
1655 | } |
1656 | ||
26de9b11 | 1657 | static inline bool f2fs_skip_inode_update(struct inode *inode) |
39a53e0c | 1658 | { |
26de9b11 JK |
1659 | if (!is_inode_flag_set(inode, FI_AUTO_RECOVER)) |
1660 | return false; | |
1661 | return F2FS_I(inode)->last_disk_size == i_size_read(inode); | |
39a53e0c JK |
1662 | } |
1663 | ||
205b9822 | 1664 | static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) |
39a53e0c | 1665 | { |
205b9822 | 1666 | F2FS_I(inode)->i_current_depth = depth; |
b56ab837 | 1667 | f2fs_mark_inode_dirty_sync(inode); |
39a53e0c JK |
1668 | } |
1669 | ||
205b9822 | 1670 | static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) |
444c580f | 1671 | { |
205b9822 | 1672 | F2FS_I(inode)->i_xattr_nid = xnid; |
b56ab837 | 1673 | f2fs_mark_inode_dirty_sync(inode); |
205b9822 JK |
1674 | } |
1675 | ||
1676 | static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) | |
1677 | { | |
1678 | F2FS_I(inode)->i_pino = pino; | |
b56ab837 | 1679 | f2fs_mark_inode_dirty_sync(inode); |
205b9822 JK |
1680 | } |
1681 | ||
91942321 | 1682 | static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) |
444c580f | 1683 | { |
205b9822 JK |
1684 | struct f2fs_inode_info *fi = F2FS_I(inode); |
1685 | ||
444c580f | 1686 | if (ri->i_inline & F2FS_INLINE_XATTR) |
205b9822 | 1687 | set_bit(FI_INLINE_XATTR, &fi->flags); |
1001b347 | 1688 | if (ri->i_inline & F2FS_INLINE_DATA) |
205b9822 | 1689 | set_bit(FI_INLINE_DATA, &fi->flags); |
34d67deb | 1690 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
205b9822 | 1691 | set_bit(FI_INLINE_DENTRY, &fi->flags); |
b3d208f9 | 1692 | if (ri->i_inline & F2FS_DATA_EXIST) |
205b9822 | 1693 | set_bit(FI_DATA_EXIST, &fi->flags); |
510022a8 | 1694 | if (ri->i_inline & F2FS_INLINE_DOTS) |
205b9822 | 1695 | set_bit(FI_INLINE_DOTS, &fi->flags); |
444c580f JK |
1696 | } |
1697 | ||
91942321 | 1698 | static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) |
444c580f JK |
1699 | { |
1700 | ri->i_inline = 0; | |
1701 | ||
91942321 | 1702 | if (is_inode_flag_set(inode, FI_INLINE_XATTR)) |
444c580f | 1703 | ri->i_inline |= F2FS_INLINE_XATTR; |
91942321 | 1704 | if (is_inode_flag_set(inode, FI_INLINE_DATA)) |
1001b347 | 1705 | ri->i_inline |= F2FS_INLINE_DATA; |
91942321 | 1706 | if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) |
34d67deb | 1707 | ri->i_inline |= F2FS_INLINE_DENTRY; |
91942321 | 1708 | if (is_inode_flag_set(inode, FI_DATA_EXIST)) |
b3d208f9 | 1709 | ri->i_inline |= F2FS_DATA_EXIST; |
91942321 | 1710 | if (is_inode_flag_set(inode, FI_INLINE_DOTS)) |
510022a8 | 1711 | ri->i_inline |= F2FS_INLINE_DOTS; |
444c580f JK |
1712 | } |
1713 | ||
987c7c31 CY |
1714 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1715 | { | |
91942321 | 1716 | return is_inode_flag_set(inode, FI_INLINE_XATTR); |
987c7c31 CY |
1717 | } |
1718 | ||
81ca7350 | 1719 | static inline unsigned int addrs_per_inode(struct inode *inode) |
de93653f | 1720 | { |
81ca7350 | 1721 | if (f2fs_has_inline_xattr(inode)) |
de93653f JK |
1722 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1723 | return DEF_ADDRS_PER_INODE; | |
1724 | } | |
1725 | ||
65985d93 JK |
1726 | static inline void *inline_xattr_addr(struct page *page) |
1727 | { | |
695fd1ed | 1728 | struct f2fs_inode *ri = F2FS_INODE(page); |
65985d93 JK |
1729 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1730 | F2FS_INLINE_XATTR_ADDRS]); | |
1731 | } | |
1732 | ||
1733 | static inline int inline_xattr_size(struct inode *inode) | |
1734 | { | |
987c7c31 | 1735 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1736 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1737 | else | |
1738 | return 0; | |
1739 | } | |
1740 | ||
0dbdc2ae JK |
1741 | static inline int f2fs_has_inline_data(struct inode *inode) |
1742 | { | |
91942321 | 1743 | return is_inode_flag_set(inode, FI_INLINE_DATA); |
0dbdc2ae JK |
1744 | } |
1745 | ||
b3d208f9 JK |
1746 | static inline void f2fs_clear_inline_inode(struct inode *inode) |
1747 | { | |
91942321 JK |
1748 | clear_inode_flag(inode, FI_INLINE_DATA); |
1749 | clear_inode_flag(inode, FI_DATA_EXIST); | |
b3d208f9 JK |
1750 | } |
1751 | ||
1752 | static inline int f2fs_exist_data(struct inode *inode) | |
1753 | { | |
91942321 | 1754 | return is_inode_flag_set(inode, FI_DATA_EXIST); |
b3d208f9 JK |
1755 | } |
1756 | ||
510022a8 JK |
1757 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1758 | { | |
91942321 | 1759 | return is_inode_flag_set(inode, FI_INLINE_DOTS); |
510022a8 JK |
1760 | } |
1761 | ||
88b88a66 JK |
1762 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1763 | { | |
91942321 | 1764 | return is_inode_flag_set(inode, FI_ATOMIC_FILE); |
88b88a66 JK |
1765 | } |
1766 | ||
02a1335f JK |
1767 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
1768 | { | |
91942321 | 1769 | return is_inode_flag_set(inode, FI_VOLATILE_FILE); |
02a1335f JK |
1770 | } |
1771 | ||
3c6c2beb JK |
1772 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
1773 | { | |
91942321 | 1774 | return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); |
3c6c2beb JK |
1775 | } |
1776 | ||
1e84371f JK |
1777 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
1778 | { | |
91942321 | 1779 | return is_inode_flag_set(inode, FI_DROP_CACHE); |
1e84371f JK |
1780 | } |
1781 | ||
1001b347 HL |
1782 | static inline void *inline_data_addr(struct page *page) |
1783 | { | |
695fd1ed | 1784 | struct f2fs_inode *ri = F2FS_INODE(page); |
1001b347 HL |
1785 | return (void *)&(ri->i_addr[1]); |
1786 | } | |
1787 | ||
34d67deb CY |
1788 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
1789 | { | |
91942321 | 1790 | return is_inode_flag_set(inode, FI_INLINE_DENTRY); |
34d67deb CY |
1791 | } |
1792 | ||
9486ba44 JK |
1793 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
1794 | { | |
1795 | if (!f2fs_has_inline_dentry(dir)) | |
1796 | kunmap(page); | |
1797 | } | |
1798 | ||
b5492af7 JK |
1799 | static inline int is_file(struct inode *inode, int type) |
1800 | { | |
1801 | return F2FS_I(inode)->i_advise & type; | |
1802 | } | |
1803 | ||
1804 | static inline void set_file(struct inode *inode, int type) | |
1805 | { | |
1806 | F2FS_I(inode)->i_advise |= type; | |
b56ab837 | 1807 | f2fs_mark_inode_dirty_sync(inode); |
b5492af7 JK |
1808 | } |
1809 | ||
1810 | static inline void clear_file(struct inode *inode, int type) | |
1811 | { | |
1812 | F2FS_I(inode)->i_advise &= ~type; | |
b56ab837 | 1813 | f2fs_mark_inode_dirty_sync(inode); |
b5492af7 JK |
1814 | } |
1815 | ||
77888c1e JK |
1816 | static inline int f2fs_readonly(struct super_block *sb) |
1817 | { | |
1818 | return sb->s_flags & MS_RDONLY; | |
1819 | } | |
1820 | ||
1e968fdf JK |
1821 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
1822 | { | |
1823 | return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1824 | } | |
1825 | ||
eaa693f4 JK |
1826 | static inline bool is_dot_dotdot(const struct qstr *str) |
1827 | { | |
1828 | if (str->len == 1 && str->name[0] == '.') | |
1829 | return true; | |
1830 | ||
1831 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
1832 | return true; | |
1833 | ||
1834 | return false; | |
1835 | } | |
1836 | ||
3e72f721 JK |
1837 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
1838 | { | |
3e72f721 | 1839 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
91942321 | 1840 | is_inode_flag_set(inode, FI_NO_EXTENT)) |
3e72f721 JK |
1841 | return false; |
1842 | ||
886f56f9 | 1843 | return S_ISREG(inode->i_mode); |
3e72f721 JK |
1844 | } |
1845 | ||
0414b004 JK |
1846 | static inline void *f2fs_kmalloc(size_t size, gfp_t flags) |
1847 | { | |
2c63fead JK |
1848 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1849 | if (time_to_inject(FAULT_KMALLOC)) | |
1850 | return NULL; | |
1851 | #endif | |
0414b004 JK |
1852 | return kmalloc(size, flags); |
1853 | } | |
1854 | ||
39307a8e JK |
1855 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
1856 | { | |
1857 | void *ret; | |
1858 | ||
1859 | ret = kmalloc(size, flags | __GFP_NOWARN); | |
1860 | if (!ret) | |
1861 | ret = __vmalloc(size, flags, PAGE_KERNEL); | |
1862 | return ret; | |
1863 | } | |
1864 | ||
1865 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) | |
1866 | { | |
1867 | void *ret; | |
1868 | ||
1869 | ret = kzalloc(size, flags | __GFP_NOWARN); | |
1870 | if (!ret) | |
1871 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); | |
1872 | return ret; | |
1873 | } | |
1874 | ||
a6dda0e6 | 1875 | #define get_inode_mode(i) \ |
91942321 | 1876 | ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ |
a6dda0e6 CH |
1877 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) |
1878 | ||
267378d4 | 1879 | /* get offset of first page in next direct node */ |
81ca7350 CY |
1880 | #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \ |
1881 | ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \ | |
1882 | (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \ | |
1883 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode)) | |
267378d4 | 1884 | |
39a53e0c JK |
1885 | /* |
1886 | * file.c | |
1887 | */ | |
1888 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); | |
1889 | void truncate_data_blocks(struct dnode_of_data *); | |
764aa3e9 | 1890 | int truncate_blocks(struct inode *, u64, bool); |
9a449e9c | 1891 | int f2fs_truncate(struct inode *); |
2d4d9fb5 | 1892 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
39a53e0c JK |
1893 | int f2fs_setattr(struct dentry *, struct iattr *); |
1894 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); | |
b292dcab | 1895 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
39a53e0c | 1896 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
e9750824 | 1897 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
39a53e0c JK |
1898 | |
1899 | /* | |
1900 | * inode.c | |
1901 | */ | |
1902 | void f2fs_set_inode_flags(struct inode *); | |
39a53e0c | 1903 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
4660f9c0 | 1904 | int try_to_free_nats(struct f2fs_sb_info *, int); |
12719ae1 JK |
1905 | int update_inode(struct inode *, struct page *); |
1906 | int update_inode_page(struct inode *); | |
39a53e0c JK |
1907 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
1908 | void f2fs_evict_inode(struct inode *); | |
44c16156 | 1909 | void handle_failed_inode(struct inode *); |
39a53e0c JK |
1910 | |
1911 | /* | |
1912 | * namei.c | |
1913 | */ | |
1914 | struct dentry *f2fs_get_parent(struct dentry *child); | |
1915 | ||
1916 | /* | |
1917 | * dir.c | |
1918 | */ | |
dbeacf02 | 1919 | extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; |
510022a8 | 1920 | void set_de_type(struct f2fs_dir_entry *, umode_t); |
675f10bd | 1921 | unsigned char get_de_type(struct f2fs_dir_entry *); |
0b81d077 | 1922 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *, |
6e22c691 | 1923 | f2fs_hash_t, int *, struct f2fs_dentry_ptr *); |
7b3cd7d6 | 1924 | bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *, |
0b81d077 | 1925 | unsigned int, struct fscrypt_str *); |
062a3e7b JK |
1926 | void do_make_empty_dir(struct inode *, struct inode *, |
1927 | struct f2fs_dentry_ptr *); | |
dbeacf02 | 1928 | struct page *init_inode_metadata(struct inode *, struct inode *, |
9421d570 | 1929 | const struct qstr *, const struct qstr *, struct page *); |
dbeacf02 | 1930 | void update_parent_metadata(struct inode *, struct inode *, unsigned int); |
a82afa20 | 1931 | int room_for_filename(const void *, int, int); |
9f7c45cc | 1932 | void f2fs_drop_nlink(struct inode *, struct inode *); |
185de68f | 1933 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, const struct qstr *, |
39a53e0c JK |
1934 | struct page **); |
1935 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); | |
835c92d4 | 1936 | ino_t f2fs_inode_by_name(struct inode *, const struct qstr *, struct page **); |
39a53e0c JK |
1937 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, |
1938 | struct page *, struct inode *); | |
e7d55452 | 1939 | int update_dent_inode(struct inode *, struct inode *, const struct qstr *); |
510022a8 | 1940 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *, |
3b4d732a | 1941 | const struct qstr *, f2fs_hash_t , unsigned int); |
675f10bd | 1942 | int f2fs_add_regular_entry(struct inode *, const struct qstr *, |
9421d570 | 1943 | const struct qstr *, struct inode *, nid_t, umode_t); |
510022a8 JK |
1944 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t, |
1945 | umode_t); | |
dbeacf02 CY |
1946 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *, |
1947 | struct inode *); | |
b97a9b5d | 1948 | int f2fs_do_tmpfile(struct inode *, struct inode *); |
39a53e0c JK |
1949 | bool f2fs_empty_dir(struct inode *); |
1950 | ||
b7f7a5e0 AV |
1951 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
1952 | { | |
2b0143b5 | 1953 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 1954 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
1955 | } |
1956 | ||
39a53e0c JK |
1957 | /* |
1958 | * super.c | |
1959 | */ | |
b56ab837 | 1960 | int f2fs_inode_dirtied(struct inode *); |
0f18b462 | 1961 | void f2fs_inode_synced(struct inode *); |
c5bda1c8 | 1962 | int f2fs_commit_super(struct f2fs_sb_info *, bool); |
39a53e0c | 1963 | int f2fs_sync_fs(struct super_block *, int); |
a07ef784 NJ |
1964 | extern __printf(3, 4) |
1965 | void f2fs_msg(struct super_block *, const char *, const char *, ...); | |
984ec63c | 1966 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
39a53e0c JK |
1967 | |
1968 | /* | |
1969 | * hash.c | |
1970 | */ | |
eee6160f | 1971 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *); |
39a53e0c JK |
1972 | |
1973 | /* | |
1974 | * node.c | |
1975 | */ | |
1976 | struct dnode_of_data; | |
1977 | struct node_info; | |
1978 | ||
6fb03f3a | 1979 | bool available_free_memory(struct f2fs_sb_info *, int); |
2dcf51ab | 1980 | int need_dentry_mark(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1981 | bool is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
88bd02c9 | 1982 | bool need_inode_block_update(struct f2fs_sb_info *, nid_t); |
39a53e0c | 1983 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
3cf45747 | 1984 | pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t); |
39a53e0c JK |
1985 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); |
1986 | int truncate_inode_blocks(struct inode *, pgoff_t); | |
4f16fb0f | 1987 | int truncate_xattr_node(struct inode *, struct page *); |
cfe58f9d | 1988 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
13ec7297 | 1989 | int remove_inode_page(struct inode *); |
a014e037 | 1990 | struct page *new_inode_page(struct inode *); |
8ae8f162 | 1991 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
39a53e0c JK |
1992 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
1993 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); | |
1994 | struct page *get_node_page_ra(struct page *, int); | |
da011cc0 | 1995 | void move_node_page(struct page *, int); |
26de9b11 JK |
1996 | int fsync_node_pages(struct f2fs_sb_info *, struct inode *, |
1997 | struct writeback_control *, bool); | |
52681375 | 1998 | int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *); |
ad4edb83 | 1999 | void build_free_nids(struct f2fs_sb_info *); |
39a53e0c JK |
2000 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); |
2001 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); | |
2002 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); | |
31696580 | 2003 | int try_to_free_nids(struct f2fs_sb_info *, int); |
70cfed88 | 2004 | void recover_inline_xattr(struct inode *, struct page *); |
1c35a90e | 2005 | void recover_xattr_data(struct inode *, struct page *, block_t); |
39a53e0c JK |
2006 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
2007 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, | |
2008 | struct f2fs_summary_block *); | |
2009 | void flush_nat_entries(struct f2fs_sb_info *); | |
2010 | int build_node_manager(struct f2fs_sb_info *); | |
2011 | void destroy_node_manager(struct f2fs_sb_info *); | |
6e6093a8 | 2012 | int __init create_node_manager_caches(void); |
39a53e0c JK |
2013 | void destroy_node_manager_caches(void); |
2014 | ||
2015 | /* | |
2016 | * segment.c | |
2017 | */ | |
88b88a66 | 2018 | void register_inmem_page(struct inode *, struct page *); |
29b96b54 CY |
2019 | void drop_inmem_pages(struct inode *); |
2020 | int commit_inmem_pages(struct inode *); | |
2c4db1a6 | 2021 | void f2fs_balance_fs(struct f2fs_sb_info *, bool); |
4660f9c0 | 2022 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
6b4afdd7 | 2023 | int f2fs_issue_flush(struct f2fs_sb_info *); |
2163d198 GZ |
2024 | int create_flush_cmd_control(struct f2fs_sb_info *); |
2025 | void destroy_flush_cmd_control(struct f2fs_sb_info *); | |
39a53e0c | 2026 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
6e2c64ad | 2027 | bool is_checkpointed_data(struct f2fs_sb_info *, block_t); |
5e443818 | 2028 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
836b5a63 | 2029 | void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); |
4b2fecc8 | 2030 | void release_discard_addrs(struct f2fs_sb_info *); |
e90c2d28 | 2031 | bool discard_next_dnode(struct f2fs_sb_info *, block_t); |
3fa06d7b | 2032 | int npages_for_summary_flush(struct f2fs_sb_info *, bool); |
39a53e0c | 2033 | void allocate_new_segments(struct f2fs_sb_info *); |
4b2fecc8 | 2034 | int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *); |
39a53e0c | 2035 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); |
381722d2 | 2036 | void update_meta_page(struct f2fs_sb_info *, void *, block_t); |
577e3495 | 2037 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
05ca3632 JK |
2038 | void write_node_page(unsigned int, struct f2fs_io_info *); |
2039 | void write_data_page(struct dnode_of_data *, struct f2fs_io_info *); | |
2040 | void rewrite_data_page(struct f2fs_io_info *); | |
4356e48e CY |
2041 | void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *, |
2042 | block_t, block_t, bool, bool); | |
528e3459 | 2043 | void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *, |
28bc106b | 2044 | block_t, block_t, unsigned char, bool, bool); |
bfad7c2d JK |
2045 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
2046 | block_t, block_t *, struct f2fs_summary *, int); | |
fec1d657 | 2047 | void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool); |
08b39fbd | 2048 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t); |
39a53e0c JK |
2049 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
2050 | void write_node_summaries(struct f2fs_sb_info *, block_t); | |
dfc08a12 | 2051 | int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int); |
4b2fecc8 | 2052 | void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *); |
39a53e0c | 2053 | int build_segment_manager(struct f2fs_sb_info *); |
39a53e0c | 2054 | void destroy_segment_manager(struct f2fs_sb_info *); |
7fd9e544 JK |
2055 | int __init create_segment_manager_caches(void); |
2056 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
2057 | |
2058 | /* | |
2059 | * checkpoint.c | |
2060 | */ | |
38f91ca8 | 2061 | void f2fs_stop_checkpoint(struct f2fs_sb_info *, bool); |
39a53e0c JK |
2062 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); |
2063 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); | |
2b947003 | 2064 | struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t); |
f0c9cada | 2065 | bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); |
26879fb1 | 2066 | int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool); |
635aee1f | 2067 | void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); |
39a53e0c | 2068 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
a49324f1 CY |
2069 | void add_ino_entry(struct f2fs_sb_info *, nid_t, int type); |
2070 | void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type); | |
74ef9241 | 2071 | void release_ino_entry(struct f2fs_sb_info *, bool); |
fff04f90 | 2072 | bool exist_written_data(struct f2fs_sb_info *, nid_t, int); |
0f18b462 | 2073 | int f2fs_sync_inode_meta(struct f2fs_sb_info *); |
cbd56e7d JK |
2074 | int acquire_orphan_inode(struct f2fs_sb_info *); |
2075 | void release_orphan_inode(struct f2fs_sb_info *); | |
67c3758d | 2076 | void add_orphan_inode(struct inode *); |
39a53e0c | 2077 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); |
8c14bfad | 2078 | int recover_orphan_inodes(struct f2fs_sb_info *); |
39a53e0c | 2079 | int get_valid_checkpoint(struct f2fs_sb_info *); |
a7ffdbe2 | 2080 | void update_dirty_page(struct inode *, struct page *); |
c227f912 | 2081 | void remove_dirty_inode(struct inode *); |
6d5a1495 | 2082 | int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type); |
c34f42e2 | 2083 | int write_checkpoint(struct f2fs_sb_info *, struct cp_control *); |
6451e041 | 2084 | void init_ino_entry_info(struct f2fs_sb_info *); |
6e6093a8 | 2085 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
2086 | void destroy_checkpoint_caches(void); |
2087 | ||
2088 | /* | |
2089 | * data.c | |
2090 | */ | |
458e6197 | 2091 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
0c3a5797 CY |
2092 | void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *, |
2093 | struct page *, nid_t, enum page_type, int); | |
406657dd | 2094 | void f2fs_flush_merged_bios(struct f2fs_sb_info *); |
05ca3632 JK |
2095 | int f2fs_submit_page_bio(struct f2fs_io_info *); |
2096 | void f2fs_submit_page_mbio(struct f2fs_io_info *); | |
216a620a | 2097 | void set_data_blkaddr(struct dnode_of_data *); |
f28b3434 | 2098 | void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t); |
46008c6d | 2099 | int reserve_new_blocks(struct dnode_of_data *, blkcnt_t); |
39a53e0c | 2100 | int reserve_new_block(struct dnode_of_data *); |
759af1c9 | 2101 | int f2fs_get_block(struct dnode_of_data *, pgoff_t); |
b439b103 | 2102 | ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *); |
b600965c | 2103 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
a56c7c6f | 2104 | struct page *get_read_data_page(struct inode *, pgoff_t, int, bool); |
43f3eae1 | 2105 | struct page *find_data_page(struct inode *, pgoff_t); |
a56c7c6f | 2106 | struct page *get_lock_data_page(struct inode *, pgoff_t, bool); |
64aa7ed9 | 2107 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
05ca3632 | 2108 | int do_write_data_page(struct f2fs_io_info *); |
d323d005 | 2109 | int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int); |
9ab70134 | 2110 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
fe76b796 | 2111 | void f2fs_set_page_dirty_nobuffers(struct page *); |
487261f3 CY |
2112 | void f2fs_invalidate_page(struct page *, unsigned int, unsigned int); |
2113 | int f2fs_release_page(struct page *, gfp_t); | |
39a53e0c JK |
2114 | |
2115 | /* | |
2116 | * gc.c | |
2117 | */ | |
2118 | int start_gc_thread(struct f2fs_sb_info *); | |
2119 | void stop_gc_thread(struct f2fs_sb_info *); | |
81ca7350 | 2120 | block_t start_bidx_of_node(unsigned int, struct inode *); |
d530d4d8 | 2121 | int f2fs_gc(struct f2fs_sb_info *, bool); |
39a53e0c | 2122 | void build_gc_manager(struct f2fs_sb_info *); |
39a53e0c JK |
2123 | |
2124 | /* | |
2125 | * recovery.c | |
2126 | */ | |
6781eabb | 2127 | int recover_fsync_data(struct f2fs_sb_info *, bool); |
39a53e0c JK |
2128 | bool space_for_roll_forward(struct f2fs_sb_info *); |
2129 | ||
2130 | /* | |
2131 | * debug.c | |
2132 | */ | |
2133 | #ifdef CONFIG_F2FS_STAT_FS | |
2134 | struct f2fs_stat_info { | |
2135 | struct list_head stat_list; | |
2136 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
2137 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
2138 | int main_area_segs, main_area_sections, main_area_zones; | |
5b7ee374 CY |
2139 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
2140 | unsigned long long hit_total, total_ext; | |
c00ba554 | 2141 | int ext_tree, zombie_tree, ext_node; |
523be8a6 | 2142 | s64 ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, inmem_pages; |
0f18b462 | 2143 | unsigned int ndirty_dirs, ndirty_files, ndirty_all; |
dd4e4b59 | 2144 | int nats, dirty_nats, sits, dirty_sits, fnids; |
39a53e0c | 2145 | int total_count, utilization; |
523be8a6 | 2146 | int bg_gc, wb_bios; |
652be551 | 2147 | int inline_xattr, inline_inode, inline_dir, orphans; |
f83a2584 | 2148 | unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; |
39a53e0c JK |
2149 | unsigned int bimodal, avg_vblocks; |
2150 | int util_free, util_valid, util_invalid; | |
2151 | int rsvd_segs, overp_segs; | |
2152 | int dirty_count, node_pages, meta_pages; | |
42190d2a | 2153 | int prefree_count, call_count, cp_count, bg_cp_count; |
39a53e0c | 2154 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 2155 | int bg_node_segs, bg_data_segs; |
39a53e0c | 2156 | int tot_blks, data_blks, node_blks; |
e1235983 | 2157 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
2158 | int curseg[NR_CURSEG_TYPE]; |
2159 | int cursec[NR_CURSEG_TYPE]; | |
2160 | int curzone[NR_CURSEG_TYPE]; | |
2161 | ||
2162 | unsigned int segment_count[2]; | |
2163 | unsigned int block_count[2]; | |
b9a2c252 | 2164 | unsigned int inplace_count; |
9edcdabf | 2165 | unsigned long long base_mem, cache_mem, page_mem; |
39a53e0c JK |
2166 | }; |
2167 | ||
963d4f7d GZ |
2168 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
2169 | { | |
6c311ec6 | 2170 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
2171 | } |
2172 | ||
942e0be6 | 2173 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
42190d2a | 2174 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
dcdfff65 JK |
2175 | #define stat_inc_call_count(si) ((si)->call_count++) |
2176 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
33fbd510 CY |
2177 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
2178 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) | |
5b7ee374 CY |
2179 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
2180 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
2181 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
2182 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
d5e8f6c9 CY |
2183 | #define stat_inc_inline_xattr(inode) \ |
2184 | do { \ | |
2185 | if (f2fs_has_inline_xattr(inode)) \ | |
2186 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2187 | } while (0) | |
2188 | #define stat_dec_inline_xattr(inode) \ | |
2189 | do { \ | |
2190 | if (f2fs_has_inline_xattr(inode)) \ | |
2191 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2192 | } while (0) | |
0dbdc2ae JK |
2193 | #define stat_inc_inline_inode(inode) \ |
2194 | do { \ | |
2195 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2196 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
2197 | } while (0) |
2198 | #define stat_dec_inline_inode(inode) \ | |
2199 | do { \ | |
2200 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2201 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 2202 | } while (0) |
3289c061 JK |
2203 | #define stat_inc_inline_dir(inode) \ |
2204 | do { \ | |
2205 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2206 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
2207 | } while (0) |
2208 | #define stat_dec_inline_dir(inode) \ | |
2209 | do { \ | |
2210 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2211 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 2212 | } while (0) |
dcdfff65 JK |
2213 | #define stat_inc_seg_type(sbi, curseg) \ |
2214 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
2215 | #define stat_inc_block_count(sbi, curseg) \ | |
2216 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
2217 | #define stat_inc_inplace_blocks(sbi) \ |
2218 | (atomic_inc(&(sbi)->inplace_count)) | |
e1235983 | 2219 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 2220 | do { \ |
963d4f7d | 2221 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c | 2222 | (si)->tot_segs++; \ |
e1235983 | 2223 | if (type == SUM_TYPE_DATA) { \ |
39a53e0c | 2224 | si->data_segs++; \ |
e1235983 CL |
2225 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2226 | } else { \ | |
39a53e0c | 2227 | si->node_segs++; \ |
e1235983 CL |
2228 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2229 | } \ | |
39a53e0c JK |
2230 | } while (0) |
2231 | ||
2232 | #define stat_inc_tot_blk_count(si, blks) \ | |
2233 | (si->tot_blks += (blks)) | |
2234 | ||
e1235983 | 2235 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2236 | do { \ |
963d4f7d | 2237 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2238 | stat_inc_tot_blk_count(si, blks); \ |
2239 | si->data_blks += (blks); \ | |
e1235983 | 2240 | si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2241 | } while (0) |
2242 | ||
e1235983 | 2243 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2244 | do { \ |
963d4f7d | 2245 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2246 | stat_inc_tot_blk_count(si, blks); \ |
2247 | si->node_blks += (blks); \ | |
e1235983 | 2248 | si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2249 | } while (0) |
2250 | ||
2251 | int f2fs_build_stats(struct f2fs_sb_info *); | |
2252 | void f2fs_destroy_stats(struct f2fs_sb_info *); | |
787c7b8c | 2253 | int __init f2fs_create_root_stats(void); |
4589d25d | 2254 | void f2fs_destroy_root_stats(void); |
39a53e0c | 2255 | #else |
942e0be6 | 2256 | #define stat_inc_cp_count(si) |
42190d2a | 2257 | #define stat_inc_bg_cp_count(si) |
39a53e0c | 2258 | #define stat_inc_call_count(si) |
dcdfff65 | 2259 | #define stat_inc_bggc_count(si) |
33fbd510 CY |
2260 | #define stat_inc_dirty_inode(sbi, type) |
2261 | #define stat_dec_dirty_inode(sbi, type) | |
dcdfff65 | 2262 | #define stat_inc_total_hit(sb) |
029e13cc | 2263 | #define stat_inc_rbtree_node_hit(sb) |
91c481ff CY |
2264 | #define stat_inc_largest_node_hit(sbi) |
2265 | #define stat_inc_cached_node_hit(sbi) | |
d5e8f6c9 CY |
2266 | #define stat_inc_inline_xattr(inode) |
2267 | #define stat_dec_inline_xattr(inode) | |
0dbdc2ae JK |
2268 | #define stat_inc_inline_inode(inode) |
2269 | #define stat_dec_inline_inode(inode) | |
3289c061 JK |
2270 | #define stat_inc_inline_dir(inode) |
2271 | #define stat_dec_inline_dir(inode) | |
dcdfff65 JK |
2272 | #define stat_inc_seg_type(sbi, curseg) |
2273 | #define stat_inc_block_count(sbi, curseg) | |
b9a2c252 | 2274 | #define stat_inc_inplace_blocks(sbi) |
e1235983 | 2275 | #define stat_inc_seg_count(sbi, type, gc_type) |
39a53e0c | 2276 | #define stat_inc_tot_blk_count(si, blks) |
e1235983 CL |
2277 | #define stat_inc_data_blk_count(sbi, blks, gc_type) |
2278 | #define stat_inc_node_blk_count(sbi, blks, gc_type) | |
39a53e0c JK |
2279 | |
2280 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
2281 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
787c7b8c | 2282 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
4589d25d | 2283 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
2284 | #endif |
2285 | ||
2286 | extern const struct file_operations f2fs_dir_operations; | |
2287 | extern const struct file_operations f2fs_file_operations; | |
2288 | extern const struct inode_operations f2fs_file_inode_operations; | |
2289 | extern const struct address_space_operations f2fs_dblock_aops; | |
2290 | extern const struct address_space_operations f2fs_node_aops; | |
2291 | extern const struct address_space_operations f2fs_meta_aops; | |
2292 | extern const struct inode_operations f2fs_dir_inode_operations; | |
2293 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
cbaf042a | 2294 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
39a53e0c | 2295 | extern const struct inode_operations f2fs_special_inode_operations; |
29e7043f | 2296 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 2297 | |
e18c65b2 HL |
2298 | /* |
2299 | * inline.c | |
2300 | */ | |
01b960e9 JK |
2301 | bool f2fs_may_inline_data(struct inode *); |
2302 | bool f2fs_may_inline_dentry(struct inode *); | |
b3d208f9 | 2303 | void read_inline_data(struct page *, struct page *); |
0bfcfcca | 2304 | bool truncate_inline_inode(struct page *, u64); |
e18c65b2 | 2305 | int f2fs_read_inline_data(struct inode *, struct page *); |
b3d208f9 JK |
2306 | int f2fs_convert_inline_page(struct dnode_of_data *, struct page *); |
2307 | int f2fs_convert_inline_inode(struct inode *); | |
2308 | int f2fs_write_inline_data(struct inode *, struct page *); | |
0342fd30 | 2309 | bool recover_inline_data(struct inode *, struct page *); |
6e22c691 | 2310 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *, |
0b81d077 | 2311 | struct fscrypt_name *, struct page **); |
201a05be | 2312 | int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *); |
9421d570 CY |
2313 | int f2fs_add_inline_entry(struct inode *, const struct qstr *, |
2314 | const struct qstr *, struct inode *, nid_t, umode_t); | |
201a05be CY |
2315 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *, |
2316 | struct inode *, struct inode *); | |
2317 | bool f2fs_empty_inline_dir(struct inode *); | |
d8c6822a | 2318 | int f2fs_read_inline_dir(struct file *, struct dir_context *, |
0b81d077 | 2319 | struct fscrypt_str *); |
67f8cf3c JK |
2320 | int f2fs_inline_data_fiemap(struct inode *, |
2321 | struct fiemap_extent_info *, __u64, __u64); | |
cde4de12 | 2322 | |
2658e50d JK |
2323 | /* |
2324 | * shrinker.c | |
2325 | */ | |
2326 | unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *); | |
2327 | unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *); | |
2328 | void f2fs_join_shrinker(struct f2fs_sb_info *); | |
2329 | void f2fs_leave_shrinker(struct f2fs_sb_info *); | |
2330 | ||
a28ef1f5 CY |
2331 | /* |
2332 | * extent_cache.c | |
2333 | */ | |
2334 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); | |
ed3d1256 | 2335 | bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *); |
5f281fab | 2336 | void f2fs_drop_extent_tree(struct inode *); |
a28ef1f5 CY |
2337 | unsigned int f2fs_destroy_extent_node(struct inode *); |
2338 | void f2fs_destroy_extent_tree(struct inode *); | |
2339 | bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *); | |
2340 | void f2fs_update_extent_cache(struct dnode_of_data *); | |
19b2c30d CY |
2341 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
2342 | pgoff_t, block_t, unsigned int); | |
a28ef1f5 CY |
2343 | void init_extent_cache_info(struct f2fs_sb_info *); |
2344 | int __init create_extent_cache(void); | |
2345 | void destroy_extent_cache(void); | |
2346 | ||
cde4de12 JK |
2347 | /* |
2348 | * crypto support | |
2349 | */ | |
0b81d077 | 2350 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
cde4de12 | 2351 | { |
cde4de12 | 2352 | return file_is_encrypt(inode); |
cde4de12 JK |
2353 | } |
2354 | ||
2355 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
2356 | { | |
2357 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2358 | file_set_encrypt(inode); | |
2359 | #endif | |
2360 | } | |
2361 | ||
2362 | static inline bool f2fs_bio_encrypted(struct bio *bio) | |
2363 | { | |
0b81d077 | 2364 | return bio->bi_private != NULL; |
cde4de12 JK |
2365 | } |
2366 | ||
2367 | static inline int f2fs_sb_has_crypto(struct super_block *sb) | |
2368 | { | |
cde4de12 | 2369 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
cde4de12 | 2370 | } |
f424f664 | 2371 | |
52763a4b JK |
2372 | static inline int f2fs_sb_mounted_hmsmr(struct super_block *sb) |
2373 | { | |
2374 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_HMSMR); | |
2375 | } | |
2376 | ||
2377 | static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) | |
2378 | { | |
2379 | clear_opt(sbi, ADAPTIVE); | |
2380 | clear_opt(sbi, LFS); | |
2381 | ||
2382 | switch (mt) { | |
2383 | case F2FS_MOUNT_ADAPTIVE: | |
2384 | set_opt(sbi, ADAPTIVE); | |
2385 | break; | |
2386 | case F2FS_MOUNT_LFS: | |
2387 | set_opt(sbi, LFS); | |
2388 | break; | |
2389 | } | |
2390 | } | |
2391 | ||
fcc85a4d JK |
2392 | static inline bool f2fs_may_encrypt(struct inode *inode) |
2393 | { | |
2394 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
886f56f9 | 2395 | umode_t mode = inode->i_mode; |
fcc85a4d JK |
2396 | |
2397 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
2398 | #else | |
2399 | return 0; | |
2400 | #endif | |
2401 | } | |
2402 | ||
0b81d077 JK |
2403 | #ifndef CONFIG_F2FS_FS_ENCRYPTION |
2404 | #define fscrypt_set_d_op(i) | |
2405 | #define fscrypt_get_ctx fscrypt_notsupp_get_ctx | |
2406 | #define fscrypt_release_ctx fscrypt_notsupp_release_ctx | |
2407 | #define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page | |
2408 | #define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page | |
2409 | #define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages | |
2410 | #define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page | |
2411 | #define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page | |
2412 | #define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range | |
2413 | #define fscrypt_process_policy fscrypt_notsupp_process_policy | |
2414 | #define fscrypt_get_policy fscrypt_notsupp_get_policy | |
2415 | #define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context | |
2416 | #define fscrypt_inherit_context fscrypt_notsupp_inherit_context | |
2417 | #define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info | |
2418 | #define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info | |
2419 | #define fscrypt_setup_filename fscrypt_notsupp_setup_filename | |
2420 | #define fscrypt_free_filename fscrypt_notsupp_free_filename | |
2421 | #define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size | |
2422 | #define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer | |
2423 | #define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer | |
2424 | #define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr | |
2425 | #define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk | |
57e5055b | 2426 | #endif |
39a53e0c | 2427 | #endif |