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0a8165d7 | 1 | /* |
39a53e0c JK |
2 | * fs/f2fs/f2fs.h |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #ifndef _LINUX_F2FS_H | |
12 | #define _LINUX_F2FS_H | |
13 | ||
14 | #include <linux/types.h> | |
15 | #include <linux/page-flags.h> | |
16 | #include <linux/buffer_head.h> | |
39a53e0c JK |
17 | #include <linux/slab.h> |
18 | #include <linux/crc32.h> | |
19 | #include <linux/magic.h> | |
c2d715d1 | 20 | #include <linux/kobject.h> |
7bd59381 | 21 | #include <linux/sched.h> |
39307a8e | 22 | #include <linux/vmalloc.h> |
740432f8 | 23 | #include <linux/bio.h> |
d0239e1b | 24 | #include <linux/blkdev.h> |
46f47e48 EB |
25 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
26 | #include <linux/fscrypt_supp.h> | |
27 | #else | |
28 | #include <linux/fscrypt_notsupp.h> | |
29 | #endif | |
43b6573b | 30 | #include <crypto/hash.h> |
39a53e0c | 31 | |
5d56b671 | 32 | #ifdef CONFIG_F2FS_CHECK_FS |
9850cf4a | 33 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) |
5d56b671 | 34 | #else |
9850cf4a JK |
35 | #define f2fs_bug_on(sbi, condition) \ |
36 | do { \ | |
37 | if (unlikely(condition)) { \ | |
38 | WARN_ON(1); \ | |
caf0047e | 39 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ |
9850cf4a JK |
40 | } \ |
41 | } while (0) | |
5d56b671 JK |
42 | #endif |
43 | ||
2c63fead JK |
44 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
45 | enum { | |
46 | FAULT_KMALLOC, | |
c41f3cc3 | 47 | FAULT_PAGE_ALLOC, |
cb78942b JK |
48 | FAULT_ALLOC_NID, |
49 | FAULT_ORPHAN, | |
50 | FAULT_BLOCK, | |
51 | FAULT_DIR_DEPTH, | |
53aa6bbf | 52 | FAULT_EVICT_INODE, |
14b44d23 | 53 | FAULT_TRUNCATE, |
8b038c70 | 54 | FAULT_IO, |
0f348028 | 55 | FAULT_CHECKPOINT, |
2c63fead JK |
56 | FAULT_MAX, |
57 | }; | |
58 | ||
08796897 SY |
59 | struct f2fs_fault_info { |
60 | atomic_t inject_ops; | |
61 | unsigned int inject_rate; | |
62 | unsigned int inject_type; | |
63 | }; | |
64 | ||
2c63fead | 65 | extern char *fault_name[FAULT_MAX]; |
68afcf2d | 66 | #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type))) |
2c63fead JK |
67 | #endif |
68 | ||
39a53e0c JK |
69 | /* |
70 | * For mount options | |
71 | */ | |
72 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
73 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
74 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
75 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
76 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
77 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
78 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 79 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 80 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
34d67deb CY |
81 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
82 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 | |
83 | #define F2FS_MOUNT_NOBARRIER 0x00000800 | |
d5053a34 | 84 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
89672159 | 85 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
6aefd93b | 86 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
343f40f0 | 87 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 |
73faec4d | 88 | #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 |
36abef4e JK |
89 | #define F2FS_MOUNT_ADAPTIVE 0x00020000 |
90 | #define F2FS_MOUNT_LFS 0x00040000 | |
39a53e0c | 91 | |
68afcf2d TK |
92 | #define clear_opt(sbi, option) ((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option) |
93 | #define set_opt(sbi, option) ((sbi)->mount_opt.opt |= F2FS_MOUNT_##option) | |
94 | #define test_opt(sbi, option) ((sbi)->mount_opt.opt & F2FS_MOUNT_##option) | |
39a53e0c JK |
95 | |
96 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
97 | typecheck(unsigned long long, b) && \ | |
98 | ((long long)((a) - (b)) > 0)) | |
99 | ||
a9841c4d JK |
100 | typedef u32 block_t; /* |
101 | * should not change u32, since it is the on-disk block | |
102 | * address format, __le32. | |
103 | */ | |
39a53e0c JK |
104 | typedef u32 nid_t; |
105 | ||
106 | struct f2fs_mount_info { | |
107 | unsigned int opt; | |
108 | }; | |
109 | ||
cde4de12 | 110 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
0bfd7a09 | 111 | #define F2FS_FEATURE_BLKZONED 0x0002 |
cde4de12 | 112 | |
76f105a2 JK |
113 | #define F2FS_HAS_FEATURE(sb, mask) \ |
114 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) | |
115 | #define F2FS_SET_FEATURE(sb, mask) \ | |
c64ab12e | 116 | (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask)) |
76f105a2 | 117 | #define F2FS_CLEAR_FEATURE(sb, mask) \ |
c64ab12e | 118 | (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask)) |
76f105a2 | 119 | |
39a53e0c JK |
120 | /* |
121 | * For checkpoint manager | |
122 | */ | |
123 | enum { | |
124 | NAT_BITMAP, | |
125 | SIT_BITMAP | |
126 | }; | |
127 | ||
c473f1a9 CY |
128 | #define CP_UMOUNT 0x00000001 |
129 | #define CP_FASTBOOT 0x00000002 | |
130 | #define CP_SYNC 0x00000004 | |
131 | #define CP_RECOVERY 0x00000008 | |
132 | #define CP_DISCARD 0x00000010 | |
75ab4cb8 | 133 | |
47b89808 | 134 | #define DEF_BATCHED_TRIM_SECTIONS 2048 |
bba681cb | 135 | #define BATCHED_TRIM_SEGMENTS(sbi) \ |
4ddb1a4d | 136 | (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections)) |
a66cdd98 JK |
137 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
138 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
4ddb1a4d JK |
139 | #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) |
140 | #define DISCARD_ISSUE_RATE 8 | |
60b99b48 | 141 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
dcf25fe8 | 142 | #define DEF_IDLE_INTERVAL 5 /* 5 secs */ |
bba681cb | 143 | |
75ab4cb8 JK |
144 | struct cp_control { |
145 | int reason; | |
4b2fecc8 JK |
146 | __u64 trim_start; |
147 | __u64 trim_end; | |
148 | __u64 trim_minlen; | |
149 | __u64 trimmed; | |
75ab4cb8 JK |
150 | }; |
151 | ||
662befda | 152 | /* |
81c1a0f1 | 153 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
154 | */ |
155 | enum { | |
156 | META_CP, | |
157 | META_NAT, | |
81c1a0f1 | 158 | META_SIT, |
4c521f49 JK |
159 | META_SSA, |
160 | META_POR, | |
662befda CY |
161 | }; |
162 | ||
6451e041 JK |
163 | /* for the list of ino */ |
164 | enum { | |
165 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
166 | APPEND_INO, /* for append ino list */ |
167 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
168 | MAX_INO_ENTRY, /* max. list */ |
169 | }; | |
170 | ||
171 | struct ino_entry { | |
39a53e0c JK |
172 | struct list_head list; /* list head */ |
173 | nid_t ino; /* inode number */ | |
174 | }; | |
175 | ||
2710fd7e | 176 | /* for the list of inodes to be GCed */ |
06292073 | 177 | struct inode_entry { |
39a53e0c JK |
178 | struct list_head list; /* list head */ |
179 | struct inode *inode; /* vfs inode pointer */ | |
180 | }; | |
181 | ||
a7eeb823 | 182 | /* for the bitmap indicate blocks to be discarded */ |
7fd9e544 JK |
183 | struct discard_entry { |
184 | struct list_head list; /* list head */ | |
a7eeb823 CY |
185 | block_t start_blkaddr; /* start blockaddr of current segment */ |
186 | unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ | |
7fd9e544 JK |
187 | }; |
188 | ||
ba48a33e CY |
189 | /* max discard pend list number */ |
190 | #define MAX_PLIST_NUM 512 | |
191 | #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ | |
192 | (MAX_PLIST_NUM - 1) : (blk_num - 1)) | |
193 | ||
15469963 JK |
194 | enum { |
195 | D_PREP, | |
196 | D_SUBMIT, | |
197 | D_DONE, | |
198 | }; | |
199 | ||
004b6862 CY |
200 | struct discard_info { |
201 | block_t lstart; /* logical start address */ | |
202 | block_t len; /* length */ | |
203 | block_t start; /* actual start address in dev */ | |
204 | }; | |
205 | ||
b01a9201 | 206 | struct discard_cmd { |
004b6862 CY |
207 | struct rb_node rb_node; /* rb node located in rb-tree */ |
208 | union { | |
209 | struct { | |
210 | block_t lstart; /* logical start address */ | |
211 | block_t len; /* length */ | |
212 | block_t start; /* actual start address in dev */ | |
213 | }; | |
214 | struct discard_info di; /* discard info */ | |
215 | ||
216 | }; | |
b01a9201 JK |
217 | struct list_head list; /* command list */ |
218 | struct completion wait; /* compleation */ | |
c81abe34 | 219 | struct block_device *bdev; /* bdev */ |
ec9895ad | 220 | unsigned short ref; /* reference count */ |
9a744b92 | 221 | unsigned char state; /* state */ |
c81abe34 | 222 | int error; /* bio error */ |
275b66b0 CY |
223 | }; |
224 | ||
0b54fb84 | 225 | struct discard_cmd_control { |
15469963 | 226 | struct task_struct *f2fs_issue_discard; /* discard thread */ |
46f84c2c | 227 | struct list_head entry_list; /* 4KB discard entry list */ |
ba48a33e | 228 | struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ |
46f84c2c | 229 | struct list_head wait_list; /* store on-flushing entries */ |
15469963 JK |
230 | wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ |
231 | struct mutex cmd_lock; | |
d618ebaf CY |
232 | unsigned int nr_discards; /* # of discards in the list */ |
233 | unsigned int max_discards; /* max. discards to be issued */ | |
d84d1cbd | 234 | unsigned int undiscard_blks; /* # of undiscard blocks */ |
8b8dd65f CY |
235 | atomic_t issued_discard; /* # of issued discard */ |
236 | atomic_t issing_discard; /* # of issing discard */ | |
5f32366a | 237 | atomic_t discard_cmd_cnt; /* # of cached cmd count */ |
004b6862 | 238 | struct rb_root root; /* root of discard rb-tree */ |
275b66b0 CY |
239 | }; |
240 | ||
39a53e0c JK |
241 | /* for the list of fsync inodes, used only during recovery */ |
242 | struct fsync_inode_entry { | |
243 | struct list_head list; /* list head */ | |
244 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
245 | block_t blkaddr; /* block address locating the last fsync */ |
246 | block_t last_dentry; /* block address locating the last dentry */ | |
39a53e0c JK |
247 | }; |
248 | ||
68afcf2d TK |
249 | #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) |
250 | #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) | |
39a53e0c | 251 | |
68afcf2d TK |
252 | #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) |
253 | #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) | |
254 | #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) | |
255 | #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) | |
39a53e0c | 256 | |
dfc08a12 CY |
257 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
258 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) | |
309cc2b6 | 259 | |
dfc08a12 | 260 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 261 | { |
dfc08a12 | 262 | int before = nats_in_cursum(journal); |
cac5a3d8 | 263 | |
dfc08a12 | 264 | journal->n_nats = cpu_to_le16(before + i); |
39a53e0c JK |
265 | return before; |
266 | } | |
267 | ||
dfc08a12 | 268 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 269 | { |
dfc08a12 | 270 | int before = sits_in_cursum(journal); |
cac5a3d8 | 271 | |
dfc08a12 | 272 | journal->n_sits = cpu_to_le16(before + i); |
39a53e0c JK |
273 | return before; |
274 | } | |
275 | ||
dfc08a12 CY |
276 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
277 | int size, int type) | |
184a5cd2 CY |
278 | { |
279 | if (type == NAT_JOURNAL) | |
dfc08a12 CY |
280 | return size <= MAX_NAT_JENTRIES(journal); |
281 | return size <= MAX_SIT_JENTRIES(journal); | |
184a5cd2 CY |
282 | } |
283 | ||
e9750824 NJ |
284 | /* |
285 | * ioctl commands | |
286 | */ | |
88b88a66 JK |
287 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
288 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 289 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
290 | |
291 | #define F2FS_IOCTL_MAGIC 0xf5 | |
292 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
293 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 294 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
295 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
296 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
d07efb50 | 297 | #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32) |
456b88e4 | 298 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
d07efb50 JK |
299 | #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \ |
300 | struct f2fs_defragment) | |
4dd6f977 JK |
301 | #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ |
302 | struct f2fs_move_range) | |
e066b83c JK |
303 | #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \ |
304 | struct f2fs_flush_device) | |
e9750824 | 305 | |
0b81d077 JK |
306 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
307 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY | |
308 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT | |
f424f664 | 309 | |
1abff93d JK |
310 | /* |
311 | * should be same as XFS_IOC_GOINGDOWN. | |
312 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
313 | */ | |
314 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
315 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
316 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
317 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
c912a829 | 318 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
1abff93d | 319 | |
e9750824 NJ |
320 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
321 | /* | |
322 | * ioctl commands in 32 bit emulation | |
323 | */ | |
04ef4b62 CY |
324 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
325 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
326 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION | |
e9750824 NJ |
327 | #endif |
328 | ||
d323d005 CY |
329 | struct f2fs_defragment { |
330 | u64 start; | |
331 | u64 len; | |
332 | }; | |
333 | ||
4dd6f977 JK |
334 | struct f2fs_move_range { |
335 | u32 dst_fd; /* destination fd */ | |
336 | u64 pos_in; /* start position in src_fd */ | |
337 | u64 pos_out; /* start position in dst_fd */ | |
338 | u64 len; /* size to move */ | |
339 | }; | |
340 | ||
e066b83c JK |
341 | struct f2fs_flush_device { |
342 | u32 dev_num; /* device number to flush */ | |
343 | u32 segments; /* # of segments to flush */ | |
344 | }; | |
345 | ||
39a53e0c JK |
346 | /* |
347 | * For INODE and NODE manager | |
348 | */ | |
7b3cd7d6 JK |
349 | /* for directory operations */ |
350 | struct f2fs_dentry_ptr { | |
d8c6822a | 351 | struct inode *inode; |
7b3cd7d6 JK |
352 | const void *bitmap; |
353 | struct f2fs_dir_entry *dentry; | |
354 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
355 | int max; | |
356 | }; | |
357 | ||
64c24ecb TK |
358 | static inline void make_dentry_ptr_block(struct inode *inode, |
359 | struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) | |
7b3cd7d6 | 360 | { |
d8c6822a | 361 | d->inode = inode; |
64c24ecb TK |
362 | d->max = NR_DENTRY_IN_BLOCK; |
363 | d->bitmap = &t->dentry_bitmap; | |
364 | d->dentry = t->dentry; | |
365 | d->filename = t->filename; | |
366 | } | |
d8c6822a | 367 | |
64c24ecb TK |
368 | static inline void make_dentry_ptr_inline(struct inode *inode, |
369 | struct f2fs_dentry_ptr *d, struct f2fs_inline_dentry *t) | |
370 | { | |
371 | d->inode = inode; | |
372 | d->max = NR_INLINE_DENTRY; | |
373 | d->bitmap = &t->dentry_bitmap; | |
374 | d->dentry = t->dentry; | |
375 | d->filename = t->filename; | |
7b3cd7d6 JK |
376 | } |
377 | ||
dbe6a5ff JK |
378 | /* |
379 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
380 | * as its node offset to distinguish from index node blocks. | |
381 | * But some bits are used to mark the node block. | |
382 | */ | |
383 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
384 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
385 | enum { |
386 | ALLOC_NODE, /* allocate a new node page if needed */ | |
387 | LOOKUP_NODE, /* look up a node without readahead */ | |
388 | LOOKUP_NODE_RA, /* | |
389 | * look up a node with readahead called | |
4f4124d0 | 390 | * by get_data_block. |
39a53e0c | 391 | */ |
266e97a8 JK |
392 | }; |
393 | ||
a6db67f0 | 394 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
39a53e0c | 395 | |
817202d9 CY |
396 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
397 | ||
13054c54 CY |
398 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
399 | #define EXT_TREE_VEC_SIZE 64 | |
400 | ||
39a53e0c | 401 | /* for in-memory extent cache entry */ |
13054c54 CY |
402 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
403 | ||
404 | /* number of extent info in extent cache we try to shrink */ | |
405 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 406 | |
54c2258c CY |
407 | struct rb_entry { |
408 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
409 | unsigned int ofs; /* start offset of the entry */ | |
410 | unsigned int len; /* length of the entry */ | |
411 | }; | |
412 | ||
39a53e0c | 413 | struct extent_info { |
13054c54 | 414 | unsigned int fofs; /* start offset in a file */ |
13054c54 | 415 | unsigned int len; /* length of the extent */ |
54c2258c | 416 | u32 blk; /* start block address of the extent */ |
13054c54 CY |
417 | }; |
418 | ||
419 | struct extent_node { | |
54c2258c CY |
420 | struct rb_node rb_node; |
421 | union { | |
422 | struct { | |
423 | unsigned int fofs; | |
424 | unsigned int len; | |
425 | u32 blk; | |
426 | }; | |
427 | struct extent_info ei; /* extent info */ | |
428 | ||
429 | }; | |
13054c54 | 430 | struct list_head list; /* node in global extent list of sbi */ |
201ef5e0 | 431 | struct extent_tree *et; /* extent tree pointer */ |
13054c54 CY |
432 | }; |
433 | ||
434 | struct extent_tree { | |
435 | nid_t ino; /* inode number */ | |
436 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 437 | struct extent_node *cached_en; /* recently accessed extent node */ |
3e72f721 | 438 | struct extent_info largest; /* largested extent info */ |
137d09f0 | 439 | struct list_head list; /* to be used by sbi->zombie_list */ |
13054c54 | 440 | rwlock_t lock; /* protect extent info rb-tree */ |
68e35385 | 441 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
39a53e0c JK |
442 | }; |
443 | ||
003a3e1d JK |
444 | /* |
445 | * This structure is taken from ext4_map_blocks. | |
446 | * | |
447 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
448 | */ | |
449 | #define F2FS_MAP_NEW (1 << BH_New) | |
450 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
7f63eb77 JK |
451 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
452 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
453 | F2FS_MAP_UNWRITTEN) | |
003a3e1d JK |
454 | |
455 | struct f2fs_map_blocks { | |
456 | block_t m_pblk; | |
457 | block_t m_lblk; | |
458 | unsigned int m_len; | |
459 | unsigned int m_flags; | |
da85985c | 460 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
003a3e1d JK |
461 | }; |
462 | ||
e2b4e2bc CY |
463 | /* for flag in get_data_block */ |
464 | #define F2FS_GET_BLOCK_READ 0 | |
465 | #define F2FS_GET_BLOCK_DIO 1 | |
466 | #define F2FS_GET_BLOCK_FIEMAP 2 | |
467 | #define F2FS_GET_BLOCK_BMAP 3 | |
b439b103 | 468 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
24b84912 | 469 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
e2b4e2bc | 470 | |
39a53e0c JK |
471 | /* |
472 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
473 | */ | |
474 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 475 | #define FADVISE_LOST_PINO_BIT 0x02 |
cde4de12 | 476 | #define FADVISE_ENCRYPT_BIT 0x04 |
e7d55452 | 477 | #define FADVISE_ENC_NAME_BIT 0x08 |
26787236 | 478 | #define FADVISE_KEEP_SIZE_BIT 0x10 |
39a53e0c | 479 | |
b5492af7 JK |
480 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
481 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
482 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
483 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
484 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
485 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
cde4de12 JK |
486 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
487 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
488 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
e7d55452 JK |
489 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
490 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
26787236 JK |
491 | #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) |
492 | #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) | |
cde4de12 | 493 | |
ab9fa662 JK |
494 | #define DEF_DIR_LEVEL 0 |
495 | ||
39a53e0c JK |
496 | struct f2fs_inode_info { |
497 | struct inode vfs_inode; /* serve a vfs inode */ | |
498 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
499 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 500 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 501 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 502 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
503 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
504 | ||
505 | /* Use below internally in f2fs*/ | |
506 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 507 | struct rw_semaphore i_sem; /* protect fi info */ |
204706c7 | 508 | atomic_t dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
509 | f2fs_hash_t chash; /* hash value of given file name */ |
510 | unsigned int clevel; /* maximum level of given file name */ | |
88c5c13a | 511 | struct task_struct *task; /* lookup and create consistency */ |
39a53e0c | 512 | nid_t i_xattr_nid; /* node id that contains xattrs */ |
26de9b11 | 513 | loff_t last_disk_size; /* lastly written file size */ |
88b88a66 | 514 | |
0f18b462 JK |
515 | struct list_head dirty_list; /* dirty list for dirs and files */ |
516 | struct list_head gdirty_list; /* linked in global dirty list */ | |
88b88a66 JK |
517 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
518 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
3e72f721 | 519 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
82e0a5aa | 520 | struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */ |
39a53e0c JK |
521 | }; |
522 | ||
523 | static inline void get_extent_info(struct extent_info *ext, | |
bd933d4f | 524 | struct f2fs_extent *i_ext) |
39a53e0c | 525 | { |
bd933d4f CY |
526 | ext->fofs = le32_to_cpu(i_ext->fofs); |
527 | ext->blk = le32_to_cpu(i_ext->blk); | |
528 | ext->len = le32_to_cpu(i_ext->len); | |
39a53e0c JK |
529 | } |
530 | ||
531 | static inline void set_raw_extent(struct extent_info *ext, | |
532 | struct f2fs_extent *i_ext) | |
533 | { | |
39a53e0c | 534 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 535 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 536 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
537 | } |
538 | ||
429511cd CY |
539 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
540 | u32 blk, unsigned int len) | |
541 | { | |
542 | ei->fofs = fofs; | |
543 | ei->blk = blk; | |
544 | ei->len = len; | |
545 | } | |
546 | ||
004b6862 CY |
547 | static inline bool __is_discard_mergeable(struct discard_info *back, |
548 | struct discard_info *front) | |
549 | { | |
550 | return back->lstart + back->len == front->lstart; | |
551 | } | |
552 | ||
553 | static inline bool __is_discard_back_mergeable(struct discard_info *cur, | |
554 | struct discard_info *back) | |
555 | { | |
556 | return __is_discard_mergeable(back, cur); | |
557 | } | |
558 | ||
559 | static inline bool __is_discard_front_mergeable(struct discard_info *cur, | |
560 | struct discard_info *front) | |
561 | { | |
562 | return __is_discard_mergeable(cur, front); | |
563 | } | |
564 | ||
429511cd CY |
565 | static inline bool __is_extent_mergeable(struct extent_info *back, |
566 | struct extent_info *front) | |
567 | { | |
568 | return (back->fofs + back->len == front->fofs && | |
569 | back->blk + back->len == front->blk); | |
570 | } | |
571 | ||
572 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
573 | struct extent_info *back) | |
574 | { | |
575 | return __is_extent_mergeable(back, cur); | |
576 | } | |
577 | ||
578 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
579 | struct extent_info *front) | |
580 | { | |
581 | return __is_extent_mergeable(cur, front); | |
582 | } | |
583 | ||
cac5a3d8 | 584 | extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); |
205b9822 JK |
585 | static inline void __try_update_largest_extent(struct inode *inode, |
586 | struct extent_tree *et, struct extent_node *en) | |
4abd3f5a | 587 | { |
205b9822 | 588 | if (en->ei.len > et->largest.len) { |
4abd3f5a | 589 | et->largest = en->ei; |
7c45729a | 590 | f2fs_mark_inode_dirty_sync(inode, true); |
205b9822 | 591 | } |
4abd3f5a CY |
592 | } |
593 | ||
b8559dc2 CY |
594 | enum nid_list { |
595 | FREE_NID_LIST, | |
596 | ALLOC_NID_LIST, | |
597 | MAX_NID_LIST, | |
598 | }; | |
599 | ||
39a53e0c JK |
600 | struct f2fs_nm_info { |
601 | block_t nat_blkaddr; /* base disk address of NAT */ | |
602 | nid_t max_nid; /* maximum possible node ids */ | |
04d47e67 | 603 | nid_t available_nids; /* # of available node ids */ |
39a53e0c | 604 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 605 | unsigned int ram_thresh; /* control the memory footprint */ |
ea1a29a0 | 606 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
2304cb0c | 607 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
39a53e0c JK |
608 | |
609 | /* NAT cache management */ | |
610 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 611 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
b873b798 | 612 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 613 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 614 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 615 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
22ad0b6a | 616 | unsigned int nat_blocks; /* # of nat blocks */ |
39a53e0c JK |
617 | |
618 | /* free node ids management */ | |
8a7ed66a | 619 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
b8559dc2 CY |
620 | struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */ |
621 | unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */ | |
622 | spinlock_t nid_list_lock; /* protect nid lists ops */ | |
39a53e0c | 623 | struct mutex build_lock; /* lock for build free nids */ |
4ac91242 CY |
624 | unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE]; |
625 | unsigned char *nat_block_bitmap; | |
586d1492 | 626 | unsigned short *free_nid_count; /* free nid count of NAT block */ |
39a53e0c JK |
627 | |
628 | /* for checkpoint */ | |
629 | char *nat_bitmap; /* NAT bitmap pointer */ | |
22ad0b6a JK |
630 | |
631 | unsigned int nat_bits_blocks; /* # of nat bits blocks */ | |
632 | unsigned char *nat_bits; /* NAT bits blocks */ | |
633 | unsigned char *full_nat_bits; /* full NAT pages */ | |
634 | unsigned char *empty_nat_bits; /* empty NAT pages */ | |
599a09b2 CY |
635 | #ifdef CONFIG_F2FS_CHECK_FS |
636 | char *nat_bitmap_mir; /* NAT bitmap mirror */ | |
637 | #endif | |
39a53e0c JK |
638 | int bitmap_size; /* bitmap size */ |
639 | }; | |
640 | ||
641 | /* | |
642 | * this structure is used as one of function parameters. | |
643 | * all the information are dedicated to a given direct node block determined | |
644 | * by the data offset in a file. | |
645 | */ | |
646 | struct dnode_of_data { | |
647 | struct inode *inode; /* vfs inode pointer */ | |
648 | struct page *inode_page; /* its inode page, NULL is possible */ | |
649 | struct page *node_page; /* cached direct node page */ | |
650 | nid_t nid; /* node id of the direct node block */ | |
651 | unsigned int ofs_in_node; /* data offset in the node page */ | |
652 | bool inode_page_locked; /* inode page is locked or not */ | |
93bae099 | 653 | bool node_changed; /* is node block changed */ |
3cf45747 CY |
654 | char cur_level; /* level of hole node page */ |
655 | char max_level; /* level of current page located */ | |
39a53e0c JK |
656 | block_t data_blkaddr; /* block address of the node block */ |
657 | }; | |
658 | ||
659 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
660 | struct page *ipage, struct page *npage, nid_t nid) | |
661 | { | |
d66d1f76 | 662 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
663 | dn->inode = inode; |
664 | dn->inode_page = ipage; | |
665 | dn->node_page = npage; | |
666 | dn->nid = nid; | |
39a53e0c JK |
667 | } |
668 | ||
669 | /* | |
670 | * For SIT manager | |
671 | * | |
672 | * By default, there are 6 active log areas across the whole main area. | |
673 | * When considering hot and cold data separation to reduce cleaning overhead, | |
674 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
675 | * respectively. | |
676 | * In the current design, you should not change the numbers intentionally. | |
677 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
678 | * logs individually according to the underlying devices. (default: 6) | |
679 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
680 | * data and 8 for node logs. | |
681 | */ | |
682 | #define NR_CURSEG_DATA_TYPE (3) | |
683 | #define NR_CURSEG_NODE_TYPE (3) | |
684 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
685 | ||
686 | enum { | |
687 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
688 | CURSEG_WARM_DATA, /* data blocks */ | |
689 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
690 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
691 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
692 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 | 693 | NO_CHECK_TYPE, |
39a53e0c JK |
694 | }; |
695 | ||
6b4afdd7 | 696 | struct flush_cmd { |
6b4afdd7 | 697 | struct completion wait; |
721bd4d5 | 698 | struct llist_node llnode; |
6b4afdd7 JK |
699 | int ret; |
700 | }; | |
701 | ||
a688b9d9 GZ |
702 | struct flush_cmd_control { |
703 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
704 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
8b8dd65f CY |
705 | atomic_t issued_flush; /* # of issued flushes */ |
706 | atomic_t issing_flush; /* # of issing flushes */ | |
721bd4d5 GZ |
707 | struct llist_head issue_list; /* list for command issue */ |
708 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
709 | }; |
710 | ||
39a53e0c JK |
711 | struct f2fs_sm_info { |
712 | struct sit_info *sit_info; /* whole segment information */ | |
713 | struct free_segmap_info *free_info; /* free segment information */ | |
714 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
715 | struct curseg_info *curseg_array; /* active segment information */ | |
716 | ||
39a53e0c JK |
717 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
718 | block_t main_blkaddr; /* start block address of main area */ | |
719 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
720 | ||
721 | unsigned int segment_count; /* total # of segments */ | |
722 | unsigned int main_segments; /* # of segments in main area */ | |
723 | unsigned int reserved_segments; /* # of reserved segments */ | |
724 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
725 | |
726 | /* a threshold to reclaim prefree segments */ | |
727 | unsigned int rec_prefree_segments; | |
7fd9e544 | 728 | |
bba681cb JK |
729 | /* for batched trimming */ |
730 | unsigned int trim_sections; /* # of sections to trim */ | |
731 | ||
184a5cd2 CY |
732 | struct list_head sit_entry_set; /* sit entry set list */ |
733 | ||
216fbd64 JK |
734 | unsigned int ipu_policy; /* in-place-update policy */ |
735 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 736 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
ef095d19 | 737 | unsigned int min_hot_blocks; /* threshold for hot block allocation */ |
6b4afdd7 JK |
738 | |
739 | /* for flush command control */ | |
b01a9201 | 740 | struct flush_cmd_control *fcc_info; |
a688b9d9 | 741 | |
0b54fb84 JK |
742 | /* for discard command control */ |
743 | struct discard_cmd_control *dcc_info; | |
39a53e0c JK |
744 | }; |
745 | ||
39a53e0c JK |
746 | /* |
747 | * For superblock | |
748 | */ | |
749 | /* | |
750 | * COUNT_TYPE for monitoring | |
751 | * | |
752 | * f2fs monitors the number of several block types such as on-writeback, | |
753 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
754 | */ | |
36951b38 | 755 | #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) |
39a53e0c | 756 | enum count_type { |
39a53e0c | 757 | F2FS_DIRTY_DENTS, |
c227f912 | 758 | F2FS_DIRTY_DATA, |
39a53e0c JK |
759 | F2FS_DIRTY_NODES, |
760 | F2FS_DIRTY_META, | |
8dcf2ff7 | 761 | F2FS_INMEM_PAGES, |
0f18b462 | 762 | F2FS_DIRTY_IMETA, |
36951b38 CY |
763 | F2FS_WB_CP_DATA, |
764 | F2FS_WB_DATA, | |
39a53e0c JK |
765 | NR_COUNT_TYPE, |
766 | }; | |
767 | ||
39a53e0c | 768 | /* |
e1c42045 | 769 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
770 | * The available types are: |
771 | * DATA User data pages. It operates as async mode. | |
772 | * NODE Node pages. It operates as async mode. | |
773 | * META FS metadata pages such as SIT, NAT, CP. | |
774 | * NR_PAGE_TYPE The number of page types. | |
775 | * META_FLUSH Make sure the previous pages are written | |
776 | * with waiting the bio's completion | |
777 | * ... Only can be used with META. | |
778 | */ | |
7d5e5109 | 779 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
780 | enum page_type { |
781 | DATA, | |
782 | NODE, | |
783 | META, | |
784 | NR_PAGE_TYPE, | |
785 | META_FLUSH, | |
8ce67cb0 JK |
786 | INMEM, /* the below types are used by tracepoints only. */ |
787 | INMEM_DROP, | |
8c242db9 | 788 | INMEM_INVALIDATE, |
28bc106b | 789 | INMEM_REVOKE, |
8ce67cb0 JK |
790 | IPU, |
791 | OPU, | |
39a53e0c JK |
792 | }; |
793 | ||
458e6197 | 794 | struct f2fs_io_info { |
05ca3632 | 795 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 | 796 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
04d328de | 797 | int op; /* contains REQ_OP_ */ |
ef295ecf | 798 | int op_flags; /* req_flag_bits */ |
7a9d7548 | 799 | block_t new_blkaddr; /* new block address to be written */ |
28bc106b | 800 | block_t old_blkaddr; /* old block address before Cow */ |
05ca3632 | 801 | struct page *page; /* page to be written */ |
4375a336 | 802 | struct page *encrypted_page; /* encrypted page */ |
d68f735b | 803 | bool submitted; /* indicate IO submission */ |
279d6df2 | 804 | bool need_lock; /* indicate we need to lock cp_rwsem */ |
458e6197 JK |
805 | }; |
806 | ||
68afcf2d | 807 | #define is_read_io(rw) ((rw) == READ) |
1ff7bd3b | 808 | struct f2fs_bio_info { |
458e6197 | 809 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
810 | struct bio *bio; /* bios to merge */ |
811 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 812 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 813 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
814 | }; |
815 | ||
3c62be17 JK |
816 | #define FDEV(i) (sbi->devs[i]) |
817 | #define RDEV(i) (raw_super->devs[i]) | |
818 | struct f2fs_dev_info { | |
819 | struct block_device *bdev; | |
820 | char path[MAX_PATH_LEN]; | |
821 | unsigned int total_segments; | |
822 | block_t start_blk; | |
823 | block_t end_blk; | |
824 | #ifdef CONFIG_BLK_DEV_ZONED | |
825 | unsigned int nr_blkz; /* Total number of zones */ | |
826 | u8 *blkz_type; /* Array of zones type */ | |
827 | #endif | |
828 | }; | |
829 | ||
c227f912 CY |
830 | enum inode_type { |
831 | DIR_INODE, /* for dirty dir inode */ | |
832 | FILE_INODE, /* for dirty regular/symlink inode */ | |
0f18b462 | 833 | DIRTY_META, /* for all dirtied inode metadata */ |
c227f912 CY |
834 | NR_INODE_TYPE, |
835 | }; | |
836 | ||
67298804 CY |
837 | /* for inner inode cache management */ |
838 | struct inode_management { | |
839 | struct radix_tree_root ino_root; /* ino entry array */ | |
840 | spinlock_t ino_lock; /* for ino entry lock */ | |
841 | struct list_head ino_list; /* inode list head */ | |
842 | unsigned long ino_num; /* number of entries */ | |
843 | }; | |
844 | ||
caf0047e CY |
845 | /* For s_flag in struct f2fs_sb_info */ |
846 | enum { | |
847 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
848 | SBI_IS_CLOSE, /* specify unmounting */ | |
849 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
850 | SBI_POR_DOING, /* recovery is doing or not */ | |
df728b0f | 851 | SBI_NEED_SB_WRITE, /* need to recover superblock */ |
bbf156f7 | 852 | SBI_NEED_CP, /* need to checkpoint */ |
caf0047e CY |
853 | }; |
854 | ||
6beceb54 JK |
855 | enum { |
856 | CP_TIME, | |
d0239e1b | 857 | REQ_TIME, |
6beceb54 JK |
858 | MAX_TIME, |
859 | }; | |
860 | ||
39a53e0c JK |
861 | struct f2fs_sb_info { |
862 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 863 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c | 864 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
e8240f65 | 865 | int valid_super_block; /* valid super block no */ |
fadb2fb8 | 866 | unsigned long s_flag; /* flags for sbi */ |
39a53e0c | 867 | |
178053e2 | 868 | #ifdef CONFIG_BLK_DEV_ZONED |
178053e2 DLM |
869 | unsigned int blocks_per_blkz; /* F2FS blocks per zone */ |
870 | unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ | |
178053e2 DLM |
871 | #endif |
872 | ||
39a53e0c JK |
873 | /* for node-related operations */ |
874 | struct f2fs_nm_info *nm_info; /* node manager */ | |
875 | struct inode *node_inode; /* cache node blocks */ | |
876 | ||
877 | /* for segment-related operations */ | |
878 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
879 | |
880 | /* for bio operations */ | |
924b720b | 881 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 882 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
7dfeaa32 | 883 | struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */ |
0a595eba JK |
884 | int write_io_size_bits; /* Write IO size bits */ |
885 | mempool_t *write_io_dummy; /* Dummy pages */ | |
39a53e0c JK |
886 | |
887 | /* for checkpoint */ | |
888 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
8508e44a | 889 | int cur_cp_pack; /* remain current cp pack */ |
aaec2b1d | 890 | spinlock_t cp_lock; /* for flag in ckpt */ |
39a53e0c | 891 | struct inode *meta_inode; /* cache meta blocks */ |
39936837 | 892 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
b873b798 | 893 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 894 | struct rw_semaphore node_write; /* locking node writes */ |
59c9081b | 895 | struct rw_semaphore node_change; /* locking node change */ |
fb51b5ef | 896 | wait_queue_head_t cp_wait; |
6beceb54 JK |
897 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
898 | long interval_time[MAX_TIME]; /* to store thresholds */ | |
39a53e0c | 899 | |
67298804 | 900 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
901 | |
902 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 903 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c | 904 | |
c227f912 CY |
905 | /* for inode management */ |
906 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ | |
907 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ | |
39a53e0c | 908 | |
13054c54 CY |
909 | /* for extent tree cache */ |
910 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
5e8256ac | 911 | struct mutex extent_tree_lock; /* locking extent radix tree */ |
13054c54 CY |
912 | struct list_head extent_list; /* lru list for shrinker */ |
913 | spinlock_t extent_lock; /* locking extent lru list */ | |
7441ccef | 914 | atomic_t total_ext_tree; /* extent tree count */ |
137d09f0 | 915 | struct list_head zombie_list; /* extent zombie tree list */ |
74fd8d99 | 916 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
13054c54 CY |
917 | atomic_t total_ext_node; /* extent info count */ |
918 | ||
e1c42045 | 919 | /* basic filesystem units */ |
39a53e0c JK |
920 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
921 | unsigned int log_blocksize; /* log2 block size */ | |
922 | unsigned int blocksize; /* block size */ | |
923 | unsigned int root_ino_num; /* root inode number*/ | |
924 | unsigned int node_ino_num; /* node inode number*/ | |
925 | unsigned int meta_ino_num; /* meta inode number*/ | |
926 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
927 | unsigned int blocks_per_seg; /* blocks per segment */ | |
928 | unsigned int segs_per_sec; /* segments per section */ | |
929 | unsigned int secs_per_zone; /* sections per zone */ | |
930 | unsigned int total_sections; /* total section count */ | |
931 | unsigned int total_node_count; /* total node block count */ | |
932 | unsigned int total_valid_node_count; /* valid node block count */ | |
e0afc4d6 | 933 | loff_t max_file_blocks; /* max block index of file */ |
39a53e0c | 934 | int active_logs; /* # of active logs */ |
ab9fa662 | 935 | int dir_level; /* directory level */ |
39a53e0c JK |
936 | |
937 | block_t user_block_count; /* # of user blocks */ | |
938 | block_t total_valid_block_count; /* # of valid blocks */ | |
a66cdd98 | 939 | block_t discard_blks; /* discard command candidats */ |
39a53e0c JK |
940 | block_t last_valid_block_count; /* for recovery */ |
941 | u32 s_next_generation; /* for NFS support */ | |
523be8a6 JK |
942 | |
943 | /* # of pages, see count_type */ | |
35782b23 | 944 | atomic_t nr_pages[NR_COUNT_TYPE]; |
41382ec4 JK |
945 | /* # of allocated blocks */ |
946 | struct percpu_counter alloc_valid_block_count; | |
39a53e0c | 947 | |
687de7f1 JK |
948 | /* writeback control */ |
949 | atomic_t wb_sync_req; /* count # of WB_SYNC threads */ | |
950 | ||
513c5f37 JK |
951 | /* valid inode count */ |
952 | struct percpu_counter total_valid_inode_count; | |
953 | ||
39a53e0c JK |
954 | struct f2fs_mount_info mount_opt; /* mount options */ |
955 | ||
956 | /* for cleaning operations */ | |
957 | struct mutex gc_mutex; /* mutex for GC */ | |
958 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 959 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 960 | |
e93b9865 HP |
961 | /* threshold for converting bg victims for fg */ |
962 | u64 fggc_threshold; | |
963 | ||
b1c57c1c JK |
964 | /* maximum # of trials to find a victim segment for SSR and GC */ |
965 | unsigned int max_victim_search; | |
966 | ||
39a53e0c JK |
967 | /* |
968 | * for stat information. | |
969 | * one is for the LFS mode, and the other is for the SSR mode. | |
970 | */ | |
35b09d82 | 971 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
972 | struct f2fs_stat_info *stat_info; /* FS status information */ |
973 | unsigned int segment_count[2]; /* # of allocated segments */ | |
974 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 975 | atomic_t inplace_count; /* # of inplace update */ |
5b7ee374 CY |
976 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
977 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
978 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
979 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
d5e8f6c9 | 980 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
03e14d52 CY |
981 | atomic_t inline_inode; /* # of inline_data inodes */ |
982 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
26a28a0c | 983 | atomic_t aw_cnt; /* # of atomic writes */ |
648d50ba | 984 | atomic_t vw_cnt; /* # of volatile writes */ |
26a28a0c | 985 | atomic_t max_aw_cnt; /* max # of atomic writes */ |
648d50ba | 986 | atomic_t max_vw_cnt; /* max # of volatile writes */ |
39a53e0c | 987 | int bg_gc; /* background gc calls */ |
33fbd510 | 988 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
35b09d82 | 989 | #endif |
39a53e0c | 990 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
991 | |
992 | /* For sysfs suppport */ | |
993 | struct kobject s_kobj; | |
994 | struct completion s_kobj_unregister; | |
2658e50d JK |
995 | |
996 | /* For shrinker support */ | |
997 | struct list_head s_list; | |
3c62be17 JK |
998 | int s_ndevs; /* number of devices */ |
999 | struct f2fs_dev_info *devs; /* for device list */ | |
2658e50d JK |
1000 | struct mutex umount_mutex; |
1001 | unsigned int shrinker_run_no; | |
8f1dbbbb SL |
1002 | |
1003 | /* For write statistics */ | |
1004 | u64 sectors_written_start; | |
1005 | u64 kbytes_written; | |
43b6573b KM |
1006 | |
1007 | /* Reference to checksum algorithm driver via cryptoapi */ | |
1008 | struct crypto_shash *s_chksum_driver; | |
1ecc0c5c CY |
1009 | |
1010 | /* For fault injection */ | |
1011 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1012 | struct f2fs_fault_info fault_info; | |
1013 | #endif | |
39a53e0c JK |
1014 | }; |
1015 | ||
1ecc0c5c | 1016 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
55523519 CY |
1017 | #define f2fs_show_injection_info(type) \ |
1018 | printk("%sF2FS-fs : inject %s in %s of %pF\n", \ | |
1019 | KERN_INFO, fault_name[type], \ | |
1020 | __func__, __builtin_return_address(0)) | |
1ecc0c5c CY |
1021 | static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) |
1022 | { | |
1023 | struct f2fs_fault_info *ffi = &sbi->fault_info; | |
1024 | ||
1025 | if (!ffi->inject_rate) | |
1026 | return false; | |
1027 | ||
1028 | if (!IS_FAULT_SET(ffi, type)) | |
1029 | return false; | |
1030 | ||
1031 | atomic_inc(&ffi->inject_ops); | |
1032 | if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { | |
1033 | atomic_set(&ffi->inject_ops, 0); | |
1ecc0c5c CY |
1034 | return true; |
1035 | } | |
1036 | return false; | |
1037 | } | |
1038 | #endif | |
1039 | ||
8f1dbbbb SL |
1040 | /* For write statistics. Suppose sector size is 512 bytes, |
1041 | * and the return value is in kbytes. s is of struct f2fs_sb_info. | |
1042 | */ | |
1043 | #define BD_PART_WRITTEN(s) \ | |
68afcf2d TK |
1044 | (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \ |
1045 | (s)->sectors_written_start) >> 1) | |
8f1dbbbb | 1046 | |
6beceb54 JK |
1047 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
1048 | { | |
1049 | sbi->last_time[type] = jiffies; | |
1050 | } | |
1051 | ||
1052 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) | |
1053 | { | |
1054 | struct timespec ts = {sbi->interval_time[type], 0}; | |
1055 | unsigned long interval = timespec_to_jiffies(&ts); | |
1056 | ||
1057 | return time_after(jiffies, sbi->last_time[type] + interval); | |
1058 | } | |
1059 | ||
d0239e1b JK |
1060 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
1061 | { | |
1062 | struct block_device *bdev = sbi->sb->s_bdev; | |
1063 | struct request_queue *q = bdev_get_queue(bdev); | |
1064 | struct request_list *rl = &q->root_rl; | |
1065 | ||
1066 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) | |
1067 | return 0; | |
1068 | ||
1069 | return f2fs_time_over(sbi, REQ_TIME); | |
1070 | } | |
1071 | ||
39a53e0c JK |
1072 | /* |
1073 | * Inline functions | |
1074 | */ | |
43b6573b KM |
1075 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
1076 | unsigned int length) | |
1077 | { | |
1078 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); | |
1079 | u32 *ctx = (u32 *)shash_desc_ctx(shash); | |
1080 | int err; | |
1081 | ||
1082 | shash->tfm = sbi->s_chksum_driver; | |
1083 | shash->flags = 0; | |
1084 | *ctx = F2FS_SUPER_MAGIC; | |
1085 | ||
1086 | err = crypto_shash_update(shash, address, length); | |
1087 | BUG_ON(err); | |
1088 | ||
1089 | return *ctx; | |
1090 | } | |
1091 | ||
1092 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, | |
1093 | void *buf, size_t buf_size) | |
1094 | { | |
1095 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; | |
1096 | } | |
1097 | ||
39a53e0c JK |
1098 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
1099 | { | |
1100 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
1101 | } | |
1102 | ||
1103 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
1104 | { | |
1105 | return sb->s_fs_info; | |
1106 | } | |
1107 | ||
4081363f JK |
1108 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
1109 | { | |
1110 | return F2FS_SB(inode->i_sb); | |
1111 | } | |
1112 | ||
1113 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
1114 | { | |
1115 | return F2FS_I_SB(mapping->host); | |
1116 | } | |
1117 | ||
1118 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
1119 | { | |
1120 | return F2FS_M_SB(page->mapping); | |
1121 | } | |
1122 | ||
39a53e0c JK |
1123 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
1124 | { | |
1125 | return (struct f2fs_super_block *)(sbi->raw_super); | |
1126 | } | |
1127 | ||
1128 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
1129 | { | |
1130 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
1131 | } | |
1132 | ||
45590710 GZ |
1133 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
1134 | { | |
1135 | return (struct f2fs_node *)page_address(page); | |
1136 | } | |
1137 | ||
58bfaf44 JK |
1138 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
1139 | { | |
1140 | return &((struct f2fs_node *)page_address(page))->i; | |
1141 | } | |
1142 | ||
39a53e0c JK |
1143 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
1144 | { | |
1145 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
1146 | } | |
1147 | ||
1148 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
1149 | { | |
1150 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
1151 | } | |
1152 | ||
1153 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
1154 | { | |
1155 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
1156 | } | |
1157 | ||
1158 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
1159 | { | |
1160 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
1161 | } | |
1162 | ||
1163 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
1164 | { | |
1165 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
1166 | } | |
1167 | ||
9df27d98 GZ |
1168 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
1169 | { | |
1170 | return sbi->meta_inode->i_mapping; | |
1171 | } | |
1172 | ||
4ef51a8f JK |
1173 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
1174 | { | |
1175 | return sbi->node_inode->i_mapping; | |
1176 | } | |
1177 | ||
caf0047e CY |
1178 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
1179 | { | |
fadb2fb8 | 1180 | return test_bit(type, &sbi->s_flag); |
caf0047e CY |
1181 | } |
1182 | ||
1183 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 1184 | { |
fadb2fb8 | 1185 | set_bit(type, &sbi->s_flag); |
39a53e0c JK |
1186 | } |
1187 | ||
caf0047e | 1188 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 1189 | { |
fadb2fb8 | 1190 | clear_bit(type, &sbi->s_flag); |
39a53e0c JK |
1191 | } |
1192 | ||
d71b5564 JK |
1193 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
1194 | { | |
1195 | return le64_to_cpu(cp->checkpoint_ver); | |
1196 | } | |
1197 | ||
ced2c7ea KM |
1198 | static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) |
1199 | { | |
1200 | size_t crc_offset = le32_to_cpu(cp->checksum_offset); | |
1201 | return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); | |
1202 | } | |
1203 | ||
aaec2b1d | 1204 | static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
25ca923b JK |
1205 | { |
1206 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
aaec2b1d | 1207 | |
25ca923b JK |
1208 | return ckpt_flags & f; |
1209 | } | |
1210 | ||
aaec2b1d | 1211 | static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
25ca923b | 1212 | { |
aaec2b1d CY |
1213 | return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); |
1214 | } | |
1215 | ||
1216 | static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1217 | { | |
1218 | unsigned int ckpt_flags; | |
1219 | ||
1220 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
25ca923b JK |
1221 | ckpt_flags |= f; |
1222 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1223 | } | |
1224 | ||
aaec2b1d | 1225 | static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
25ca923b | 1226 | { |
aaec2b1d CY |
1227 | spin_lock(&sbi->cp_lock); |
1228 | __set_ckpt_flags(F2FS_CKPT(sbi), f); | |
1229 | spin_unlock(&sbi->cp_lock); | |
1230 | } | |
1231 | ||
1232 | static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1233 | { | |
1234 | unsigned int ckpt_flags; | |
1235 | ||
1236 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
25ca923b JK |
1237 | ckpt_flags &= (~f); |
1238 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1239 | } | |
1240 | ||
aaec2b1d CY |
1241 | static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
1242 | { | |
1243 | spin_lock(&sbi->cp_lock); | |
1244 | __clear_ckpt_flags(F2FS_CKPT(sbi), f); | |
1245 | spin_unlock(&sbi->cp_lock); | |
1246 | } | |
1247 | ||
22ad0b6a JK |
1248 | static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) |
1249 | { | |
1250 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
1251 | ||
1252 | if (lock) | |
1253 | spin_lock(&sbi->cp_lock); | |
1254 | __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); | |
1255 | kfree(NM_I(sbi)->nat_bits); | |
1256 | NM_I(sbi)->nat_bits = NULL; | |
1257 | if (lock) | |
1258 | spin_unlock(&sbi->cp_lock); | |
1259 | } | |
1260 | ||
1261 | static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, | |
1262 | struct cp_control *cpc) | |
1263 | { | |
1264 | bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); | |
1265 | ||
c473f1a9 | 1266 | return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; |
22ad0b6a JK |
1267 | } |
1268 | ||
e479556b | 1269 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 1270 | { |
b873b798 | 1271 | down_read(&sbi->cp_rwsem); |
39936837 JK |
1272 | } |
1273 | ||
e479556b | 1274 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 1275 | { |
b873b798 | 1276 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
1277 | } |
1278 | ||
e479556b | 1279 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 1280 | { |
b873b798 | 1281 | down_write(&sbi->cp_rwsem); |
39936837 JK |
1282 | } |
1283 | ||
e479556b | 1284 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 1285 | { |
b873b798 | 1286 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
1287 | } |
1288 | ||
119ee914 JK |
1289 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
1290 | { | |
1291 | int reason = CP_SYNC; | |
1292 | ||
1293 | if (test_opt(sbi, FASTBOOT)) | |
1294 | reason = CP_FASTBOOT; | |
1295 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
1296 | reason = CP_UMOUNT; | |
1297 | return reason; | |
1298 | } | |
1299 | ||
1300 | static inline bool __remain_node_summaries(int reason) | |
1301 | { | |
c473f1a9 | 1302 | return (reason & (CP_UMOUNT | CP_FASTBOOT)); |
119ee914 JK |
1303 | } |
1304 | ||
1305 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
1306 | { | |
aaec2b1d CY |
1307 | return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || |
1308 | is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); | |
119ee914 JK |
1309 | } |
1310 | ||
39a53e0c JK |
1311 | /* |
1312 | * Check whether the given nid is within node id range. | |
1313 | */ | |
064e0823 | 1314 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 1315 | { |
d6b7d4b3 CY |
1316 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
1317 | return -EINVAL; | |
cfb271d4 | 1318 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
1319 | return -EINVAL; |
1320 | return 0; | |
39a53e0c JK |
1321 | } |
1322 | ||
1323 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
1324 | ||
1325 | /* | |
1326 | * Check whether the inode has blocks or not | |
1327 | */ | |
1328 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1329 | { | |
1330 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 1331 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 1332 | else |
6c311ec6 | 1333 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
1334 | } |
1335 | ||
4bc8e9bc CY |
1336 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
1337 | { | |
1338 | return ofs == XATTR_NODE_OFFSET; | |
1339 | } | |
1340 | ||
8edd03c8 | 1341 | static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool); |
39a53e0c | 1342 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
46008c6d | 1343 | struct inode *inode, blkcnt_t *count) |
39a53e0c | 1344 | { |
dd11a5df | 1345 | blkcnt_t diff; |
39a53e0c | 1346 | |
cb78942b | 1347 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
55523519 CY |
1348 | if (time_to_inject(sbi, FAULT_BLOCK)) { |
1349 | f2fs_show_injection_info(FAULT_BLOCK); | |
cb78942b | 1350 | return false; |
55523519 | 1351 | } |
cb78942b | 1352 | #endif |
dd11a5df JK |
1353 | /* |
1354 | * let's increase this in prior to actual block count change in order | |
1355 | * for f2fs_sync_file to avoid data races when deciding checkpoint. | |
1356 | */ | |
1357 | percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); | |
1358 | ||
2555a2d5 JK |
1359 | spin_lock(&sbi->stat_lock); |
1360 | sbi->total_valid_block_count += (block_t)(*count); | |
1361 | if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) { | |
dd11a5df JK |
1362 | diff = sbi->total_valid_block_count - sbi->user_block_count; |
1363 | *count -= diff; | |
2555a2d5 | 1364 | sbi->total_valid_block_count = sbi->user_block_count; |
46008c6d CY |
1365 | if (!*count) { |
1366 | spin_unlock(&sbi->stat_lock); | |
dd11a5df | 1367 | percpu_counter_sub(&sbi->alloc_valid_block_count, diff); |
46008c6d CY |
1368 | return false; |
1369 | } | |
39a53e0c | 1370 | } |
39a53e0c | 1371 | spin_unlock(&sbi->stat_lock); |
41382ec4 | 1372 | |
2555a2d5 | 1373 | f2fs_i_blocks_write(inode, *count, true); |
39a53e0c JK |
1374 | return true; |
1375 | } | |
1376 | ||
da19b0dc | 1377 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
1378 | struct inode *inode, |
1379 | blkcnt_t count) | |
1380 | { | |
1381 | spin_lock(&sbi->stat_lock); | |
9850cf4a JK |
1382 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
1383 | f2fs_bug_on(sbi, inode->i_blocks < count); | |
39a53e0c JK |
1384 | sbi->total_valid_block_count -= (block_t)count; |
1385 | spin_unlock(&sbi->stat_lock); | |
2555a2d5 | 1386 | f2fs_i_blocks_write(inode, count, false); |
39a53e0c JK |
1387 | } |
1388 | ||
1389 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1390 | { | |
35782b23 | 1391 | atomic_inc(&sbi->nr_pages[count_type]); |
7c4abcbe | 1392 | |
36951b38 CY |
1393 | if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES || |
1394 | count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA) | |
7c4abcbe CY |
1395 | return; |
1396 | ||
caf0047e | 1397 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
1398 | } |
1399 | ||
a7ffdbe2 | 1400 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 1401 | { |
204706c7 | 1402 | atomic_inc(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1403 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1404 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1405 | } |
1406 | ||
1407 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1408 | { | |
35782b23 | 1409 | atomic_dec(&sbi->nr_pages[count_type]); |
39a53e0c JK |
1410 | } |
1411 | ||
a7ffdbe2 | 1412 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 1413 | { |
5ac9f36f CY |
1414 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1415 | !S_ISLNK(inode->i_mode)) | |
1fe54f9d JK |
1416 | return; |
1417 | ||
204706c7 | 1418 | atomic_dec(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1419 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1420 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1421 | } |
1422 | ||
523be8a6 | 1423 | static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) |
39a53e0c | 1424 | { |
35782b23 | 1425 | return atomic_read(&sbi->nr_pages[count_type]); |
39a53e0c JK |
1426 | } |
1427 | ||
204706c7 | 1428 | static inline int get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1429 | { |
204706c7 | 1430 | return atomic_read(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1431 | } |
1432 | ||
5ac206cf NJ |
1433 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1434 | { | |
3519e3f9 | 1435 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
523be8a6 JK |
1436 | unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> |
1437 | sbi->log_blocks_per_seg; | |
1438 | ||
1439 | return segs / sbi->segs_per_sec; | |
5ac206cf NJ |
1440 | } |
1441 | ||
39a53e0c JK |
1442 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1443 | { | |
8b8343fa | 1444 | return sbi->total_valid_block_count; |
39a53e0c JK |
1445 | } |
1446 | ||
f83a2584 YH |
1447 | static inline block_t discard_blocks(struct f2fs_sb_info *sbi) |
1448 | { | |
1449 | return sbi->discard_blks; | |
1450 | } | |
1451 | ||
39a53e0c JK |
1452 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) |
1453 | { | |
1454 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1455 | ||
1456 | /* return NAT or SIT bitmap */ | |
1457 | if (flag == NAT_BITMAP) | |
1458 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1459 | else if (flag == SIT_BITMAP) | |
1460 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1461 | ||
1462 | return 0; | |
1463 | } | |
1464 | ||
55141486 WL |
1465 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1466 | { | |
1467 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1468 | } | |
1469 | ||
39a53e0c JK |
1470 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1471 | { | |
1472 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1473 | int offset; |
1474 | ||
55141486 | 1475 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1476 | if (flag == NAT_BITMAP) |
1477 | return &ckpt->sit_nat_version_bitmap; | |
1478 | else | |
65b85ccc | 1479 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1480 | } else { |
1481 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1482 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1483 | return &ckpt->sit_nat_version_bitmap + offset; |
1484 | } | |
39a53e0c JK |
1485 | } |
1486 | ||
1487 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1488 | { | |
8508e44a | 1489 | block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c | 1490 | |
8508e44a | 1491 | if (sbi->cur_cp_pack == 2) |
39a53e0c | 1492 | start_addr += sbi->blocks_per_seg; |
8508e44a JK |
1493 | return start_addr; |
1494 | } | |
39a53e0c | 1495 | |
8508e44a JK |
1496 | static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) |
1497 | { | |
1498 | block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); | |
39a53e0c | 1499 | |
8508e44a JK |
1500 | if (sbi->cur_cp_pack == 1) |
1501 | start_addr += sbi->blocks_per_seg; | |
39a53e0c JK |
1502 | return start_addr; |
1503 | } | |
1504 | ||
8508e44a JK |
1505 | static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) |
1506 | { | |
1507 | sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; | |
1508 | } | |
1509 | ||
39a53e0c JK |
1510 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) |
1511 | { | |
1512 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1513 | } | |
1514 | ||
1515 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1516 | struct inode *inode) |
39a53e0c JK |
1517 | { |
1518 | block_t valid_block_count; | |
1519 | unsigned int valid_node_count; | |
1520 | ||
1521 | spin_lock(&sbi->stat_lock); | |
1522 | ||
ef86d709 | 1523 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 1524 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
1525 | spin_unlock(&sbi->stat_lock); |
1526 | return false; | |
1527 | } | |
1528 | ||
ef86d709 | 1529 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1530 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1531 | spin_unlock(&sbi->stat_lock); |
1532 | return false; | |
1533 | } | |
1534 | ||
1535 | if (inode) | |
8edd03c8 | 1536 | f2fs_i_blocks_write(inode, 1, true); |
ef86d709 | 1537 | |
ef86d709 GZ |
1538 | sbi->total_valid_node_count++; |
1539 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1540 | spin_unlock(&sbi->stat_lock); |
1541 | ||
41382ec4 | 1542 | percpu_counter_inc(&sbi->alloc_valid_block_count); |
39a53e0c JK |
1543 | return true; |
1544 | } | |
1545 | ||
1546 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1547 | struct inode *inode) |
39a53e0c JK |
1548 | { |
1549 | spin_lock(&sbi->stat_lock); | |
1550 | ||
9850cf4a JK |
1551 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1552 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1553 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1554 | |
8edd03c8 | 1555 | f2fs_i_blocks_write(inode, 1, false); |
ef86d709 GZ |
1556 | sbi->total_valid_node_count--; |
1557 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1558 | |
1559 | spin_unlock(&sbi->stat_lock); | |
1560 | } | |
1561 | ||
1562 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1563 | { | |
8b8343fa | 1564 | return sbi->total_valid_node_count; |
39a53e0c JK |
1565 | } |
1566 | ||
1567 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1568 | { | |
513c5f37 | 1569 | percpu_counter_inc(&sbi->total_valid_inode_count); |
39a53e0c JK |
1570 | } |
1571 | ||
0e80220a | 1572 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c | 1573 | { |
513c5f37 | 1574 | percpu_counter_dec(&sbi->total_valid_inode_count); |
39a53e0c JK |
1575 | } |
1576 | ||
513c5f37 | 1577 | static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c | 1578 | { |
513c5f37 | 1579 | return percpu_counter_sum_positive(&sbi->total_valid_inode_count); |
39a53e0c JK |
1580 | } |
1581 | ||
a56c7c6f JK |
1582 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
1583 | pgoff_t index, bool for_write) | |
1584 | { | |
c41f3cc3 JK |
1585 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1586 | struct page *page = find_lock_page(mapping, index); | |
cac5a3d8 | 1587 | |
c41f3cc3 JK |
1588 | if (page) |
1589 | return page; | |
1590 | ||
55523519 CY |
1591 | if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { |
1592 | f2fs_show_injection_info(FAULT_PAGE_ALLOC); | |
c41f3cc3 | 1593 | return NULL; |
55523519 | 1594 | } |
c41f3cc3 | 1595 | #endif |
a56c7c6f JK |
1596 | if (!for_write) |
1597 | return grab_cache_page(mapping, index); | |
1598 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); | |
1599 | } | |
1600 | ||
6e2c64ad JK |
1601 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
1602 | { | |
1603 | char *src_kaddr = kmap(src); | |
1604 | char *dst_kaddr = kmap(dst); | |
1605 | ||
1606 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); | |
1607 | kunmap(dst); | |
1608 | kunmap(src); | |
1609 | } | |
1610 | ||
39a53e0c JK |
1611 | static inline void f2fs_put_page(struct page *page, int unlock) |
1612 | { | |
031fa8cc | 1613 | if (!page) |
39a53e0c JK |
1614 | return; |
1615 | ||
1616 | if (unlock) { | |
9850cf4a | 1617 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1618 | unlock_page(page); |
1619 | } | |
09cbfeaf | 1620 | put_page(page); |
39a53e0c JK |
1621 | } |
1622 | ||
1623 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1624 | { | |
1625 | if (dn->node_page) | |
1626 | f2fs_put_page(dn->node_page, 1); | |
1627 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1628 | f2fs_put_page(dn->inode_page, 0); | |
1629 | dn->node_page = NULL; | |
1630 | dn->inode_page = NULL; | |
1631 | } | |
1632 | ||
1633 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1634 | size_t size) |
39a53e0c | 1635 | { |
e8512d2e | 1636 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1637 | } |
1638 | ||
7bd59381 GZ |
1639 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1640 | gfp_t flags) | |
1641 | { | |
1642 | void *entry; | |
7bd59381 | 1643 | |
80c54505 JK |
1644 | entry = kmem_cache_alloc(cachep, flags); |
1645 | if (!entry) | |
1646 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
7bd59381 GZ |
1647 | return entry; |
1648 | } | |
1649 | ||
740432f8 JK |
1650 | static inline struct bio *f2fs_bio_alloc(int npages) |
1651 | { | |
1652 | struct bio *bio; | |
1653 | ||
1654 | /* No failure on bio allocation */ | |
740432f8 | 1655 | bio = bio_alloc(GFP_NOIO, npages); |
80c54505 JK |
1656 | if (!bio) |
1657 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); | |
740432f8 JK |
1658 | return bio; |
1659 | } | |
1660 | ||
9be32d72 JK |
1661 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1662 | unsigned long index, void *item) | |
1663 | { | |
1664 | while (radix_tree_insert(root, index, item)) | |
1665 | cond_resched(); | |
1666 | } | |
1667 | ||
39a53e0c JK |
1668 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1669 | ||
1670 | static inline bool IS_INODE(struct page *page) | |
1671 | { | |
45590710 | 1672 | struct f2fs_node *p = F2FS_NODE(page); |
cac5a3d8 | 1673 | |
39a53e0c JK |
1674 | return RAW_IS_INODE(p); |
1675 | } | |
1676 | ||
1677 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1678 | { | |
1679 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1680 | } | |
1681 | ||
1682 | static inline block_t datablock_addr(struct page *node_page, | |
1683 | unsigned int offset) | |
1684 | { | |
1685 | struct f2fs_node *raw_node; | |
1686 | __le32 *addr_array; | |
cac5a3d8 | 1687 | |
45590710 | 1688 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1689 | addr_array = blkaddr_in_node(raw_node); |
1690 | return le32_to_cpu(addr_array[offset]); | |
1691 | } | |
1692 | ||
1693 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1694 | { | |
1695 | int mask; | |
1696 | ||
1697 | addr += (nr >> 3); | |
1698 | mask = 1 << (7 - (nr & 0x07)); | |
1699 | return mask & *addr; | |
1700 | } | |
1701 | ||
a66cdd98 JK |
1702 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1703 | { | |
1704 | int mask; | |
1705 | ||
1706 | addr += (nr >> 3); | |
1707 | mask = 1 << (7 - (nr & 0x07)); | |
1708 | *addr |= mask; | |
1709 | } | |
1710 | ||
1711 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
1712 | { | |
1713 | int mask; | |
1714 | ||
1715 | addr += (nr >> 3); | |
1716 | mask = 1 << (7 - (nr & 0x07)); | |
1717 | *addr &= ~mask; | |
1718 | } | |
1719 | ||
52aca074 | 1720 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1721 | { |
1722 | int mask; | |
1723 | int ret; | |
1724 | ||
1725 | addr += (nr >> 3); | |
1726 | mask = 1 << (7 - (nr & 0x07)); | |
1727 | ret = mask & *addr; | |
1728 | *addr |= mask; | |
1729 | return ret; | |
1730 | } | |
1731 | ||
52aca074 | 1732 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1733 | { |
1734 | int mask; | |
1735 | int ret; | |
1736 | ||
1737 | addr += (nr >> 3); | |
1738 | mask = 1 << (7 - (nr & 0x07)); | |
1739 | ret = mask & *addr; | |
1740 | *addr &= ~mask; | |
1741 | return ret; | |
1742 | } | |
1743 | ||
c6ac4c0e GZ |
1744 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1745 | { | |
1746 | int mask; | |
1747 | ||
1748 | addr += (nr >> 3); | |
1749 | mask = 1 << (7 - (nr & 0x07)); | |
1750 | *addr ^= mask; | |
1751 | } | |
1752 | ||
39a53e0c JK |
1753 | /* used for f2fs_inode_info->flags */ |
1754 | enum { | |
1755 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1756 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
26de9b11 | 1757 | FI_AUTO_RECOVER, /* indicate inode is recoverable */ |
ed57c27f | 1758 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1759 | FI_INC_LINK, /* need to increment i_nlink */ |
1760 | FI_ACL_MODE, /* indicate acl mode */ | |
1761 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
c9b63bd0 | 1762 | FI_FREE_NID, /* free allocated nide */ |
c11abd1a | 1763 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1764 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1765 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1766 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1767 | FI_APPEND_WRITE, /* inode has appended data */ |
1768 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1769 | FI_NEED_IPU, /* used for ipu per file */ |
1770 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
5fe45743 | 1771 | FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ |
02a1335f | 1772 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1773 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1774 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1775 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1776 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
d323d005 | 1777 | FI_DO_DEFRAG, /* indicate defragment is running */ |
c227f912 | 1778 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
dc91de78 | 1779 | FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ |
ef095d19 | 1780 | FI_HOT_DATA, /* indicate file is hot */ |
39a53e0c JK |
1781 | }; |
1782 | ||
205b9822 JK |
1783 | static inline void __mark_inode_dirty_flag(struct inode *inode, |
1784 | int flag, bool set) | |
1785 | { | |
1786 | switch (flag) { | |
1787 | case FI_INLINE_XATTR: | |
1788 | case FI_INLINE_DATA: | |
1789 | case FI_INLINE_DENTRY: | |
1790 | if (set) | |
1791 | return; | |
1792 | case FI_DATA_EXIST: | |
1793 | case FI_INLINE_DOTS: | |
7c45729a | 1794 | f2fs_mark_inode_dirty_sync(inode, true); |
205b9822 JK |
1795 | } |
1796 | } | |
1797 | ||
91942321 | 1798 | static inline void set_inode_flag(struct inode *inode, int flag) |
39a53e0c | 1799 | { |
91942321 JK |
1800 | if (!test_bit(flag, &F2FS_I(inode)->flags)) |
1801 | set_bit(flag, &F2FS_I(inode)->flags); | |
205b9822 | 1802 | __mark_inode_dirty_flag(inode, flag, true); |
39a53e0c JK |
1803 | } |
1804 | ||
91942321 | 1805 | static inline int is_inode_flag_set(struct inode *inode, int flag) |
39a53e0c | 1806 | { |
91942321 | 1807 | return test_bit(flag, &F2FS_I(inode)->flags); |
39a53e0c JK |
1808 | } |
1809 | ||
91942321 | 1810 | static inline void clear_inode_flag(struct inode *inode, int flag) |
39a53e0c | 1811 | { |
91942321 JK |
1812 | if (test_bit(flag, &F2FS_I(inode)->flags)) |
1813 | clear_bit(flag, &F2FS_I(inode)->flags); | |
205b9822 | 1814 | __mark_inode_dirty_flag(inode, flag, false); |
39a53e0c JK |
1815 | } |
1816 | ||
91942321 | 1817 | static inline void set_acl_inode(struct inode *inode, umode_t mode) |
39a53e0c | 1818 | { |
91942321 JK |
1819 | F2FS_I(inode)->i_acl_mode = mode; |
1820 | set_inode_flag(inode, FI_ACL_MODE); | |
7c45729a | 1821 | f2fs_mark_inode_dirty_sync(inode, false); |
39a53e0c JK |
1822 | } |
1823 | ||
a1961246 | 1824 | static inline void f2fs_i_links_write(struct inode *inode, bool inc) |
39a53e0c | 1825 | { |
a1961246 JK |
1826 | if (inc) |
1827 | inc_nlink(inode); | |
1828 | else | |
1829 | drop_nlink(inode); | |
7c45729a | 1830 | f2fs_mark_inode_dirty_sync(inode, true); |
a1961246 JK |
1831 | } |
1832 | ||
8edd03c8 JK |
1833 | static inline void f2fs_i_blocks_write(struct inode *inode, |
1834 | blkcnt_t diff, bool add) | |
1835 | { | |
26de9b11 JK |
1836 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
1837 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
1838 | ||
8edd03c8 JK |
1839 | inode->i_blocks = add ? inode->i_blocks + diff : |
1840 | inode->i_blocks - diff; | |
7c45729a | 1841 | f2fs_mark_inode_dirty_sync(inode, true); |
26de9b11 JK |
1842 | if (clean || recover) |
1843 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
8edd03c8 JK |
1844 | } |
1845 | ||
fc9581c8 JK |
1846 | static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) |
1847 | { | |
26de9b11 JK |
1848 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
1849 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
1850 | ||
fc9581c8 JK |
1851 | if (i_size_read(inode) == i_size) |
1852 | return; | |
1853 | ||
1854 | i_size_write(inode, i_size); | |
7c45729a | 1855 | f2fs_mark_inode_dirty_sync(inode, true); |
26de9b11 JK |
1856 | if (clean || recover) |
1857 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
39a53e0c JK |
1858 | } |
1859 | ||
205b9822 | 1860 | static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) |
39a53e0c | 1861 | { |
205b9822 | 1862 | F2FS_I(inode)->i_current_depth = depth; |
7c45729a | 1863 | f2fs_mark_inode_dirty_sync(inode, true); |
39a53e0c JK |
1864 | } |
1865 | ||
205b9822 | 1866 | static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) |
444c580f | 1867 | { |
205b9822 | 1868 | F2FS_I(inode)->i_xattr_nid = xnid; |
7c45729a | 1869 | f2fs_mark_inode_dirty_sync(inode, true); |
205b9822 JK |
1870 | } |
1871 | ||
1872 | static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) | |
1873 | { | |
1874 | F2FS_I(inode)->i_pino = pino; | |
7c45729a | 1875 | f2fs_mark_inode_dirty_sync(inode, true); |
205b9822 JK |
1876 | } |
1877 | ||
91942321 | 1878 | static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) |
444c580f | 1879 | { |
205b9822 JK |
1880 | struct f2fs_inode_info *fi = F2FS_I(inode); |
1881 | ||
444c580f | 1882 | if (ri->i_inline & F2FS_INLINE_XATTR) |
205b9822 | 1883 | set_bit(FI_INLINE_XATTR, &fi->flags); |
1001b347 | 1884 | if (ri->i_inline & F2FS_INLINE_DATA) |
205b9822 | 1885 | set_bit(FI_INLINE_DATA, &fi->flags); |
34d67deb | 1886 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
205b9822 | 1887 | set_bit(FI_INLINE_DENTRY, &fi->flags); |
b3d208f9 | 1888 | if (ri->i_inline & F2FS_DATA_EXIST) |
205b9822 | 1889 | set_bit(FI_DATA_EXIST, &fi->flags); |
510022a8 | 1890 | if (ri->i_inline & F2FS_INLINE_DOTS) |
205b9822 | 1891 | set_bit(FI_INLINE_DOTS, &fi->flags); |
444c580f JK |
1892 | } |
1893 | ||
91942321 | 1894 | static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) |
444c580f JK |
1895 | { |
1896 | ri->i_inline = 0; | |
1897 | ||
91942321 | 1898 | if (is_inode_flag_set(inode, FI_INLINE_XATTR)) |
444c580f | 1899 | ri->i_inline |= F2FS_INLINE_XATTR; |
91942321 | 1900 | if (is_inode_flag_set(inode, FI_INLINE_DATA)) |
1001b347 | 1901 | ri->i_inline |= F2FS_INLINE_DATA; |
91942321 | 1902 | if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) |
34d67deb | 1903 | ri->i_inline |= F2FS_INLINE_DENTRY; |
91942321 | 1904 | if (is_inode_flag_set(inode, FI_DATA_EXIST)) |
b3d208f9 | 1905 | ri->i_inline |= F2FS_DATA_EXIST; |
91942321 | 1906 | if (is_inode_flag_set(inode, FI_INLINE_DOTS)) |
510022a8 | 1907 | ri->i_inline |= F2FS_INLINE_DOTS; |
444c580f JK |
1908 | } |
1909 | ||
987c7c31 CY |
1910 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1911 | { | |
91942321 | 1912 | return is_inode_flag_set(inode, FI_INLINE_XATTR); |
987c7c31 CY |
1913 | } |
1914 | ||
81ca7350 | 1915 | static inline unsigned int addrs_per_inode(struct inode *inode) |
de93653f | 1916 | { |
81ca7350 | 1917 | if (f2fs_has_inline_xattr(inode)) |
de93653f JK |
1918 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1919 | return DEF_ADDRS_PER_INODE; | |
1920 | } | |
1921 | ||
65985d93 JK |
1922 | static inline void *inline_xattr_addr(struct page *page) |
1923 | { | |
695fd1ed | 1924 | struct f2fs_inode *ri = F2FS_INODE(page); |
cac5a3d8 | 1925 | |
65985d93 JK |
1926 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1927 | F2FS_INLINE_XATTR_ADDRS]); | |
1928 | } | |
1929 | ||
1930 | static inline int inline_xattr_size(struct inode *inode) | |
1931 | { | |
987c7c31 | 1932 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1933 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1934 | else | |
1935 | return 0; | |
1936 | } | |
1937 | ||
0dbdc2ae JK |
1938 | static inline int f2fs_has_inline_data(struct inode *inode) |
1939 | { | |
91942321 | 1940 | return is_inode_flag_set(inode, FI_INLINE_DATA); |
0dbdc2ae JK |
1941 | } |
1942 | ||
b3d208f9 JK |
1943 | static inline int f2fs_exist_data(struct inode *inode) |
1944 | { | |
91942321 | 1945 | return is_inode_flag_set(inode, FI_DATA_EXIST); |
b3d208f9 JK |
1946 | } |
1947 | ||
510022a8 JK |
1948 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1949 | { | |
91942321 | 1950 | return is_inode_flag_set(inode, FI_INLINE_DOTS); |
510022a8 JK |
1951 | } |
1952 | ||
88b88a66 JK |
1953 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1954 | { | |
91942321 | 1955 | return is_inode_flag_set(inode, FI_ATOMIC_FILE); |
88b88a66 JK |
1956 | } |
1957 | ||
5fe45743 CY |
1958 | static inline bool f2fs_is_commit_atomic_write(struct inode *inode) |
1959 | { | |
1960 | return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); | |
1961 | } | |
1962 | ||
02a1335f JK |
1963 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
1964 | { | |
91942321 | 1965 | return is_inode_flag_set(inode, FI_VOLATILE_FILE); |
02a1335f JK |
1966 | } |
1967 | ||
3c6c2beb JK |
1968 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
1969 | { | |
91942321 | 1970 | return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); |
3c6c2beb JK |
1971 | } |
1972 | ||
1e84371f JK |
1973 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
1974 | { | |
91942321 | 1975 | return is_inode_flag_set(inode, FI_DROP_CACHE); |
1e84371f JK |
1976 | } |
1977 | ||
1001b347 HL |
1978 | static inline void *inline_data_addr(struct page *page) |
1979 | { | |
695fd1ed | 1980 | struct f2fs_inode *ri = F2FS_INODE(page); |
cac5a3d8 | 1981 | |
1001b347 HL |
1982 | return (void *)&(ri->i_addr[1]); |
1983 | } | |
1984 | ||
34d67deb CY |
1985 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
1986 | { | |
91942321 | 1987 | return is_inode_flag_set(inode, FI_INLINE_DENTRY); |
34d67deb CY |
1988 | } |
1989 | ||
9486ba44 JK |
1990 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
1991 | { | |
1992 | if (!f2fs_has_inline_dentry(dir)) | |
1993 | kunmap(page); | |
1994 | } | |
1995 | ||
b5492af7 JK |
1996 | static inline int is_file(struct inode *inode, int type) |
1997 | { | |
1998 | return F2FS_I(inode)->i_advise & type; | |
1999 | } | |
2000 | ||
2001 | static inline void set_file(struct inode *inode, int type) | |
2002 | { | |
2003 | F2FS_I(inode)->i_advise |= type; | |
7c45729a | 2004 | f2fs_mark_inode_dirty_sync(inode, true); |
b5492af7 JK |
2005 | } |
2006 | ||
2007 | static inline void clear_file(struct inode *inode, int type) | |
2008 | { | |
2009 | F2FS_I(inode)->i_advise &= ~type; | |
7c45729a | 2010 | f2fs_mark_inode_dirty_sync(inode, true); |
b5492af7 JK |
2011 | } |
2012 | ||
26787236 JK |
2013 | static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) |
2014 | { | |
2015 | if (dsync) { | |
2016 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2017 | bool ret; | |
2018 | ||
2019 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
2020 | ret = list_empty(&F2FS_I(inode)->gdirty_list); | |
2021 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
2022 | return ret; | |
2023 | } | |
2024 | if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || | |
2025 | file_keep_isize(inode) || | |
2026 | i_size_read(inode) & PAGE_MASK) | |
2027 | return false; | |
2028 | return F2FS_I(inode)->last_disk_size == i_size_read(inode); | |
b5492af7 JK |
2029 | } |
2030 | ||
77888c1e JK |
2031 | static inline int f2fs_readonly(struct super_block *sb) |
2032 | { | |
2033 | return sb->s_flags & MS_RDONLY; | |
2034 | } | |
2035 | ||
1e968fdf JK |
2036 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
2037 | { | |
aaec2b1d | 2038 | return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); |
1e968fdf JK |
2039 | } |
2040 | ||
eaa693f4 JK |
2041 | static inline bool is_dot_dotdot(const struct qstr *str) |
2042 | { | |
2043 | if (str->len == 1 && str->name[0] == '.') | |
2044 | return true; | |
2045 | ||
2046 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
2047 | return true; | |
2048 | ||
2049 | return false; | |
2050 | } | |
2051 | ||
3e72f721 JK |
2052 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
2053 | { | |
3e72f721 | 2054 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
91942321 | 2055 | is_inode_flag_set(inode, FI_NO_EXTENT)) |
3e72f721 JK |
2056 | return false; |
2057 | ||
886f56f9 | 2058 | return S_ISREG(inode->i_mode); |
3e72f721 JK |
2059 | } |
2060 | ||
1ecc0c5c CY |
2061 | static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, |
2062 | size_t size, gfp_t flags) | |
0414b004 | 2063 | { |
2c63fead | 2064 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
55523519 CY |
2065 | if (time_to_inject(sbi, FAULT_KMALLOC)) { |
2066 | f2fs_show_injection_info(FAULT_KMALLOC); | |
2c63fead | 2067 | return NULL; |
55523519 | 2068 | } |
2c63fead | 2069 | #endif |
0414b004 JK |
2070 | return kmalloc(size, flags); |
2071 | } | |
2072 | ||
39307a8e JK |
2073 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
2074 | { | |
2075 | void *ret; | |
2076 | ||
2077 | ret = kmalloc(size, flags | __GFP_NOWARN); | |
2078 | if (!ret) | |
2079 | ret = __vmalloc(size, flags, PAGE_KERNEL); | |
2080 | return ret; | |
2081 | } | |
2082 | ||
2083 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) | |
2084 | { | |
2085 | void *ret; | |
2086 | ||
2087 | ret = kzalloc(size, flags | __GFP_NOWARN); | |
2088 | if (!ret) | |
2089 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); | |
2090 | return ret; | |
2091 | } | |
2092 | ||
a6dda0e6 | 2093 | #define get_inode_mode(i) \ |
91942321 | 2094 | ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ |
a6dda0e6 CH |
2095 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) |
2096 | ||
39a53e0c JK |
2097 | /* |
2098 | * file.c | |
2099 | */ | |
cac5a3d8 DS |
2100 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); |
2101 | void truncate_data_blocks(struct dnode_of_data *dn); | |
2102 | int truncate_blocks(struct inode *inode, u64 from, bool lock); | |
2103 | int f2fs_truncate(struct inode *inode); | |
a528d35e DH |
2104 | int f2fs_getattr(const struct path *path, struct kstat *stat, |
2105 | u32 request_mask, unsigned int flags); | |
cac5a3d8 DS |
2106 | int f2fs_setattr(struct dentry *dentry, struct iattr *attr); |
2107 | int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); | |
2108 | int truncate_data_blocks_range(struct dnode_of_data *dn, int count); | |
2109 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); | |
2110 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
39a53e0c JK |
2111 | |
2112 | /* | |
2113 | * inode.c | |
2114 | */ | |
cac5a3d8 DS |
2115 | void f2fs_set_inode_flags(struct inode *inode); |
2116 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); | |
2117 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); | |
2118 | int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); | |
2119 | int update_inode(struct inode *inode, struct page *node_page); | |
2120 | int update_inode_page(struct inode *inode); | |
2121 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); | |
2122 | void f2fs_evict_inode(struct inode *inode); | |
2123 | void handle_failed_inode(struct inode *inode); | |
39a53e0c JK |
2124 | |
2125 | /* | |
2126 | * namei.c | |
2127 | */ | |
2128 | struct dentry *f2fs_get_parent(struct dentry *child); | |
2129 | ||
2130 | /* | |
2131 | * dir.c | |
2132 | */ | |
cac5a3d8 DS |
2133 | void set_de_type(struct f2fs_dir_entry *de, umode_t mode); |
2134 | unsigned char get_de_type(struct f2fs_dir_entry *de); | |
2135 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname, | |
2136 | f2fs_hash_t namehash, int *max_slots, | |
2137 | struct f2fs_dentry_ptr *d); | |
2138 | int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, | |
2139 | unsigned int start_pos, struct fscrypt_str *fstr); | |
2140 | void do_make_empty_dir(struct inode *inode, struct inode *parent, | |
2141 | struct f2fs_dentry_ptr *d); | |
2142 | struct page *init_inode_metadata(struct inode *inode, struct inode *dir, | |
2143 | const struct qstr *new_name, | |
2144 | const struct qstr *orig_name, struct page *dpage); | |
2145 | void update_parent_metadata(struct inode *dir, struct inode *inode, | |
2146 | unsigned int current_depth); | |
2147 | int room_for_filename(const void *bitmap, int slots, int max_slots); | |
2148 | void f2fs_drop_nlink(struct inode *dir, struct inode *inode); | |
2149 | struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, | |
2150 | struct fscrypt_name *fname, struct page **res_page); | |
2151 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, | |
2152 | const struct qstr *child, struct page **res_page); | |
2153 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); | |
2154 | ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, | |
2155 | struct page **page); | |
2156 | void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, | |
2157 | struct page *page, struct inode *inode); | |
cac5a3d8 DS |
2158 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, |
2159 | const struct qstr *name, f2fs_hash_t name_hash, | |
2160 | unsigned int bit_pos); | |
2161 | int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, | |
2162 | const struct qstr *orig_name, | |
2163 | struct inode *inode, nid_t ino, umode_t mode); | |
2164 | int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname, | |
2165 | struct inode *inode, nid_t ino, umode_t mode); | |
2166 | int __f2fs_add_link(struct inode *dir, const struct qstr *name, | |
2167 | struct inode *inode, nid_t ino, umode_t mode); | |
2168 | void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, | |
2169 | struct inode *dir, struct inode *inode); | |
2170 | int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); | |
2171 | bool f2fs_empty_dir(struct inode *dir); | |
39a53e0c | 2172 | |
b7f7a5e0 AV |
2173 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
2174 | { | |
2b0143b5 | 2175 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 2176 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
2177 | } |
2178 | ||
39a53e0c JK |
2179 | /* |
2180 | * super.c | |
2181 | */ | |
cac5a3d8 DS |
2182 | int f2fs_inode_dirtied(struct inode *inode, bool sync); |
2183 | void f2fs_inode_synced(struct inode *inode); | |
2184 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); | |
2185 | int f2fs_sync_fs(struct super_block *sb, int sync); | |
a07ef784 | 2186 | extern __printf(3, 4) |
cac5a3d8 | 2187 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); |
984ec63c | 2188 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
39a53e0c JK |
2189 | |
2190 | /* | |
2191 | * hash.c | |
2192 | */ | |
cac5a3d8 | 2193 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info); |
39a53e0c JK |
2194 | |
2195 | /* | |
2196 | * node.c | |
2197 | */ | |
2198 | struct dnode_of_data; | |
2199 | struct node_info; | |
2200 | ||
cac5a3d8 DS |
2201 | bool available_free_memory(struct f2fs_sb_info *sbi, int type); |
2202 | int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); | |
2203 | bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); | |
2204 | bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); | |
2205 | void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni); | |
2206 | pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); | |
2207 | int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); | |
2208 | int truncate_inode_blocks(struct inode *inode, pgoff_t from); | |
2209 | int truncate_xattr_node(struct inode *inode, struct page *page); | |
2210 | int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino); | |
2211 | int remove_inode_page(struct inode *inode); | |
2212 | struct page *new_inode_page(struct inode *inode); | |
2213 | struct page *new_node_page(struct dnode_of_data *dn, | |
2214 | unsigned int ofs, struct page *ipage); | |
2215 | void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); | |
2216 | struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); | |
2217 | struct page *get_node_page_ra(struct page *parent, int start); | |
2218 | void move_node_page(struct page *node_page, int gc_type); | |
2219 | int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, | |
2220 | struct writeback_control *wbc, bool atomic); | |
2221 | int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc); | |
22ad0b6a | 2222 | void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); |
cac5a3d8 DS |
2223 | bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); |
2224 | void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); | |
2225 | void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); | |
2226 | int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); | |
2227 | void recover_inline_xattr(struct inode *inode, struct page *page); | |
d260081c | 2228 | int recover_xattr_data(struct inode *inode, struct page *page, |
cac5a3d8 DS |
2229 | block_t blkaddr); |
2230 | int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); | |
2231 | int restore_node_summary(struct f2fs_sb_info *sbi, | |
2232 | unsigned int segno, struct f2fs_summary_block *sum); | |
22ad0b6a | 2233 | void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
cac5a3d8 DS |
2234 | int build_node_manager(struct f2fs_sb_info *sbi); |
2235 | void destroy_node_manager(struct f2fs_sb_info *sbi); | |
6e6093a8 | 2236 | int __init create_node_manager_caches(void); |
39a53e0c JK |
2237 | void destroy_node_manager_caches(void); |
2238 | ||
2239 | /* | |
2240 | * segment.c | |
2241 | */ | |
cac5a3d8 DS |
2242 | void register_inmem_page(struct inode *inode, struct page *page); |
2243 | void drop_inmem_pages(struct inode *inode); | |
8c242db9 | 2244 | void drop_inmem_page(struct inode *inode, struct page *page); |
cac5a3d8 DS |
2245 | int commit_inmem_pages(struct inode *inode); |
2246 | void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); | |
2247 | void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi); | |
2248 | int f2fs_issue_flush(struct f2fs_sb_info *sbi); | |
2249 | int create_flush_cmd_control(struct f2fs_sb_info *sbi); | |
2250 | void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); | |
2251 | void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); | |
2252 | bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); | |
2253 | void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new); | |
d431413f | 2254 | void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi); |
cac5a3d8 DS |
2255 | void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
2256 | void release_discard_addrs(struct f2fs_sb_info *sbi); | |
2257 | int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); | |
2258 | void allocate_new_segments(struct f2fs_sb_info *sbi); | |
2259 | int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); | |
2260 | bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
2261 | struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); | |
2262 | void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr); | |
2263 | void write_meta_page(struct f2fs_sb_info *sbi, struct page *page); | |
2264 | void write_node_page(unsigned int nid, struct f2fs_io_info *fio); | |
2265 | void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio); | |
d1b3e72d | 2266 | int rewrite_data_page(struct f2fs_io_info *fio); |
cac5a3d8 DS |
2267 | void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, |
2268 | block_t old_blkaddr, block_t new_blkaddr, | |
2269 | bool recover_curseg, bool recover_newaddr); | |
2270 | void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, | |
2271 | block_t old_addr, block_t new_addr, | |
2272 | unsigned char version, bool recover_curseg, | |
2273 | bool recover_newaddr); | |
2274 | void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, | |
2275 | block_t old_blkaddr, block_t *new_blkaddr, | |
2276 | struct f2fs_summary *sum, int type); | |
2277 | void f2fs_wait_on_page_writeback(struct page *page, | |
2278 | enum page_type type, bool ordered); | |
2279 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi, | |
2280 | block_t blkaddr); | |
2281 | void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); | |
2282 | void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); | |
2283 | int lookup_journal_in_cursum(struct f2fs_journal *journal, int type, | |
2284 | unsigned int val, int alloc); | |
2285 | void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
2286 | int build_segment_manager(struct f2fs_sb_info *sbi); | |
2287 | void destroy_segment_manager(struct f2fs_sb_info *sbi); | |
7fd9e544 JK |
2288 | int __init create_segment_manager_caches(void); |
2289 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
2290 | |
2291 | /* | |
2292 | * checkpoint.c | |
2293 | */ | |
cac5a3d8 DS |
2294 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); |
2295 | struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
2296 | struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
2297 | struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
2298 | bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type); | |
2299 | int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, | |
2300 | int type, bool sync); | |
2301 | void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); | |
2302 | long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, | |
2303 | long nr_to_write); | |
2304 | void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); | |
2305 | void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); | |
2306 | void release_ino_entry(struct f2fs_sb_info *sbi, bool all); | |
2307 | bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); | |
2308 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); | |
2309 | int acquire_orphan_inode(struct f2fs_sb_info *sbi); | |
2310 | void release_orphan_inode(struct f2fs_sb_info *sbi); | |
2311 | void add_orphan_inode(struct inode *inode); | |
2312 | void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); | |
2313 | int recover_orphan_inodes(struct f2fs_sb_info *sbi); | |
2314 | int get_valid_checkpoint(struct f2fs_sb_info *sbi); | |
2315 | void update_dirty_page(struct inode *inode, struct page *page); | |
2316 | void remove_dirty_inode(struct inode *inode); | |
2317 | int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); | |
2318 | int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
2319 | void init_ino_entry_info(struct f2fs_sb_info *sbi); | |
6e6093a8 | 2320 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
2321 | void destroy_checkpoint_caches(void); |
2322 | ||
2323 | /* | |
2324 | * data.c | |
2325 | */ | |
cac5a3d8 DS |
2326 | void f2fs_submit_merged_bio(struct f2fs_sb_info *sbi, enum page_type type, |
2327 | int rw); | |
2328 | void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *sbi, | |
942fd319 JK |
2329 | struct inode *inode, nid_t ino, pgoff_t idx, |
2330 | enum page_type type, int rw); | |
cac5a3d8 DS |
2331 | void f2fs_flush_merged_bios(struct f2fs_sb_info *sbi); |
2332 | int f2fs_submit_page_bio(struct f2fs_io_info *fio); | |
2333 | int f2fs_submit_page_mbio(struct f2fs_io_info *fio); | |
2334 | struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, | |
2335 | block_t blk_addr, struct bio *bio); | |
2336 | int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); | |
2337 | void set_data_blkaddr(struct dnode_of_data *dn); | |
2338 | void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); | |
2339 | int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); | |
2340 | int reserve_new_block(struct dnode_of_data *dn); | |
2341 | int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); | |
2342 | int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); | |
2343 | int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); | |
2344 | struct page *get_read_data_page(struct inode *inode, pgoff_t index, | |
2345 | int op_flags, bool for_write); | |
2346 | struct page *find_data_page(struct inode *inode, pgoff_t index); | |
2347 | struct page *get_lock_data_page(struct inode *inode, pgoff_t index, | |
2348 | bool for_write); | |
2349 | struct page *get_new_data_page(struct inode *inode, | |
2350 | struct page *ipage, pgoff_t index, bool new_i_size); | |
2351 | int do_write_data_page(struct f2fs_io_info *fio); | |
2352 | int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, | |
2353 | int create, int flag); | |
2354 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, | |
2355 | u64 start, u64 len); | |
2356 | void f2fs_set_page_dirty_nobuffers(struct page *page); | |
2357 | void f2fs_invalidate_page(struct page *page, unsigned int offset, | |
2358 | unsigned int length); | |
2359 | int f2fs_release_page(struct page *page, gfp_t wait); | |
5b7a487c | 2360 | #ifdef CONFIG_MIGRATION |
cac5a3d8 DS |
2361 | int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, |
2362 | struct page *page, enum migrate_mode mode); | |
5b7a487c | 2363 | #endif |
39a53e0c JK |
2364 | |
2365 | /* | |
2366 | * gc.c | |
2367 | */ | |
cac5a3d8 DS |
2368 | int start_gc_thread(struct f2fs_sb_info *sbi); |
2369 | void stop_gc_thread(struct f2fs_sb_info *sbi); | |
2370 | block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode); | |
e066b83c JK |
2371 | int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, |
2372 | unsigned int segno); | |
cac5a3d8 | 2373 | void build_gc_manager(struct f2fs_sb_info *sbi); |
39a53e0c JK |
2374 | |
2375 | /* | |
2376 | * recovery.c | |
2377 | */ | |
cac5a3d8 DS |
2378 | int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); |
2379 | bool space_for_roll_forward(struct f2fs_sb_info *sbi); | |
39a53e0c JK |
2380 | |
2381 | /* | |
2382 | * debug.c | |
2383 | */ | |
2384 | #ifdef CONFIG_F2FS_STAT_FS | |
2385 | struct f2fs_stat_info { | |
2386 | struct list_head stat_list; | |
2387 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
2388 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
2389 | int main_area_segs, main_area_sections, main_area_zones; | |
5b7ee374 CY |
2390 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
2391 | unsigned long long hit_total, total_ext; | |
c00ba554 | 2392 | int ext_tree, zombie_tree, ext_node; |
35782b23 JK |
2393 | int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta; |
2394 | int inmem_pages; | |
0f18b462 | 2395 | unsigned int ndirty_dirs, ndirty_files, ndirty_all; |
b8559dc2 | 2396 | int nats, dirty_nats, sits, dirty_sits, free_nids, alloc_nids; |
39a53e0c | 2397 | int total_count, utilization; |
8b8dd65f CY |
2398 | int bg_gc, nr_wb_cp_data, nr_wb_data; |
2399 | int nr_flushing, nr_flushed, nr_discarding, nr_discarded; | |
5f32366a | 2400 | int nr_discard_cmd; |
d84d1cbd | 2401 | unsigned int undiscard_blks; |
a00861db | 2402 | int inline_xattr, inline_inode, inline_dir, append, update, orphans; |
648d50ba | 2403 | int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; |
f83a2584 | 2404 | unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; |
39a53e0c JK |
2405 | unsigned int bimodal, avg_vblocks; |
2406 | int util_free, util_valid, util_invalid; | |
2407 | int rsvd_segs, overp_segs; | |
2408 | int dirty_count, node_pages, meta_pages; | |
42190d2a | 2409 | int prefree_count, call_count, cp_count, bg_cp_count; |
39a53e0c | 2410 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 2411 | int bg_node_segs, bg_data_segs; |
39a53e0c | 2412 | int tot_blks, data_blks, node_blks; |
e1235983 | 2413 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
2414 | int curseg[NR_CURSEG_TYPE]; |
2415 | int cursec[NR_CURSEG_TYPE]; | |
2416 | int curzone[NR_CURSEG_TYPE]; | |
2417 | ||
2418 | unsigned int segment_count[2]; | |
2419 | unsigned int block_count[2]; | |
b9a2c252 | 2420 | unsigned int inplace_count; |
9edcdabf | 2421 | unsigned long long base_mem, cache_mem, page_mem; |
39a53e0c JK |
2422 | }; |
2423 | ||
963d4f7d GZ |
2424 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
2425 | { | |
6c311ec6 | 2426 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
2427 | } |
2428 | ||
942e0be6 | 2429 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
42190d2a | 2430 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
dcdfff65 JK |
2431 | #define stat_inc_call_count(si) ((si)->call_count++) |
2432 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
33fbd510 CY |
2433 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
2434 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) | |
5b7ee374 CY |
2435 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
2436 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
2437 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
2438 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
d5e8f6c9 CY |
2439 | #define stat_inc_inline_xattr(inode) \ |
2440 | do { \ | |
2441 | if (f2fs_has_inline_xattr(inode)) \ | |
2442 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2443 | } while (0) | |
2444 | #define stat_dec_inline_xattr(inode) \ | |
2445 | do { \ | |
2446 | if (f2fs_has_inline_xattr(inode)) \ | |
2447 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2448 | } while (0) | |
0dbdc2ae JK |
2449 | #define stat_inc_inline_inode(inode) \ |
2450 | do { \ | |
2451 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2452 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
2453 | } while (0) |
2454 | #define stat_dec_inline_inode(inode) \ | |
2455 | do { \ | |
2456 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2457 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 2458 | } while (0) |
3289c061 JK |
2459 | #define stat_inc_inline_dir(inode) \ |
2460 | do { \ | |
2461 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2462 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
2463 | } while (0) |
2464 | #define stat_dec_inline_dir(inode) \ | |
2465 | do { \ | |
2466 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2467 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 2468 | } while (0) |
dcdfff65 JK |
2469 | #define stat_inc_seg_type(sbi, curseg) \ |
2470 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
2471 | #define stat_inc_block_count(sbi, curseg) \ | |
2472 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
2473 | #define stat_inc_inplace_blocks(sbi) \ |
2474 | (atomic_inc(&(sbi)->inplace_count)) | |
26a28a0c | 2475 | #define stat_inc_atomic_write(inode) \ |
cac5a3d8 | 2476 | (atomic_inc(&F2FS_I_SB(inode)->aw_cnt)) |
26a28a0c | 2477 | #define stat_dec_atomic_write(inode) \ |
cac5a3d8 | 2478 | (atomic_dec(&F2FS_I_SB(inode)->aw_cnt)) |
26a28a0c JK |
2479 | #define stat_update_max_atomic_write(inode) \ |
2480 | do { \ | |
2481 | int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \ | |
2482 | int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ | |
2483 | if (cur > max) \ | |
2484 | atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ | |
2485 | } while (0) | |
648d50ba CY |
2486 | #define stat_inc_volatile_write(inode) \ |
2487 | (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) | |
2488 | #define stat_dec_volatile_write(inode) \ | |
2489 | (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) | |
2490 | #define stat_update_max_volatile_write(inode) \ | |
2491 | do { \ | |
2492 | int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ | |
2493 | int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ | |
2494 | if (cur > max) \ | |
2495 | atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ | |
2496 | } while (0) | |
e1235983 | 2497 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 2498 | do { \ |
963d4f7d | 2499 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
68afcf2d TK |
2500 | si->tot_segs++; \ |
2501 | if ((type) == SUM_TYPE_DATA) { \ | |
39a53e0c | 2502 | si->data_segs++; \ |
e1235983 CL |
2503 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2504 | } else { \ | |
39a53e0c | 2505 | si->node_segs++; \ |
e1235983 CL |
2506 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2507 | } \ | |
39a53e0c JK |
2508 | } while (0) |
2509 | ||
2510 | #define stat_inc_tot_blk_count(si, blks) \ | |
68afcf2d | 2511 | ((si)->tot_blks += (blks)) |
39a53e0c | 2512 | |
e1235983 | 2513 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2514 | do { \ |
963d4f7d | 2515 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2516 | stat_inc_tot_blk_count(si, blks); \ |
2517 | si->data_blks += (blks); \ | |
68afcf2d | 2518 | si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2519 | } while (0) |
2520 | ||
e1235983 | 2521 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2522 | do { \ |
963d4f7d | 2523 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2524 | stat_inc_tot_blk_count(si, blks); \ |
2525 | si->node_blks += (blks); \ | |
68afcf2d | 2526 | si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2527 | } while (0) |
2528 | ||
cac5a3d8 DS |
2529 | int f2fs_build_stats(struct f2fs_sb_info *sbi); |
2530 | void f2fs_destroy_stats(struct f2fs_sb_info *sbi); | |
787c7b8c | 2531 | int __init f2fs_create_root_stats(void); |
4589d25d | 2532 | void f2fs_destroy_root_stats(void); |
39a53e0c | 2533 | #else |
d66450e7 AB |
2534 | #define stat_inc_cp_count(si) do { } while (0) |
2535 | #define stat_inc_bg_cp_count(si) do { } while (0) | |
2536 | #define stat_inc_call_count(si) do { } while (0) | |
2537 | #define stat_inc_bggc_count(si) do { } while (0) | |
2538 | #define stat_inc_dirty_inode(sbi, type) do { } while (0) | |
2539 | #define stat_dec_dirty_inode(sbi, type) do { } while (0) | |
2540 | #define stat_inc_total_hit(sb) do { } while (0) | |
2541 | #define stat_inc_rbtree_node_hit(sb) do { } while (0) | |
2542 | #define stat_inc_largest_node_hit(sbi) do { } while (0) | |
2543 | #define stat_inc_cached_node_hit(sbi) do { } while (0) | |
2544 | #define stat_inc_inline_xattr(inode) do { } while (0) | |
2545 | #define stat_dec_inline_xattr(inode) do { } while (0) | |
2546 | #define stat_inc_inline_inode(inode) do { } while (0) | |
2547 | #define stat_dec_inline_inode(inode) do { } while (0) | |
2548 | #define stat_inc_inline_dir(inode) do { } while (0) | |
2549 | #define stat_dec_inline_dir(inode) do { } while (0) | |
2550 | #define stat_inc_atomic_write(inode) do { } while (0) | |
2551 | #define stat_dec_atomic_write(inode) do { } while (0) | |
2552 | #define stat_update_max_atomic_write(inode) do { } while (0) | |
2553 | #define stat_inc_volatile_write(inode) do { } while (0) | |
2554 | #define stat_dec_volatile_write(inode) do { } while (0) | |
2555 | #define stat_update_max_volatile_write(inode) do { } while (0) | |
2556 | #define stat_inc_seg_type(sbi, curseg) do { } while (0) | |
2557 | #define stat_inc_block_count(sbi, curseg) do { } while (0) | |
2558 | #define stat_inc_inplace_blocks(sbi) do { } while (0) | |
2559 | #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) | |
2560 | #define stat_inc_tot_blk_count(si, blks) do { } while (0) | |
2561 | #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) | |
2562 | #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) | |
39a53e0c JK |
2563 | |
2564 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
2565 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
787c7b8c | 2566 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
4589d25d | 2567 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
2568 | #endif |
2569 | ||
2570 | extern const struct file_operations f2fs_dir_operations; | |
2571 | extern const struct file_operations f2fs_file_operations; | |
2572 | extern const struct inode_operations f2fs_file_inode_operations; | |
2573 | extern const struct address_space_operations f2fs_dblock_aops; | |
2574 | extern const struct address_space_operations f2fs_node_aops; | |
2575 | extern const struct address_space_operations f2fs_meta_aops; | |
2576 | extern const struct inode_operations f2fs_dir_inode_operations; | |
2577 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
cbaf042a | 2578 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
39a53e0c | 2579 | extern const struct inode_operations f2fs_special_inode_operations; |
29e7043f | 2580 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 2581 | |
e18c65b2 HL |
2582 | /* |
2583 | * inline.c | |
2584 | */ | |
cac5a3d8 DS |
2585 | bool f2fs_may_inline_data(struct inode *inode); |
2586 | bool f2fs_may_inline_dentry(struct inode *inode); | |
2587 | void read_inline_data(struct page *page, struct page *ipage); | |
bd4667cb | 2588 | void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from); |
cac5a3d8 DS |
2589 | int f2fs_read_inline_data(struct inode *inode, struct page *page); |
2590 | int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); | |
2591 | int f2fs_convert_inline_inode(struct inode *inode); | |
2592 | int f2fs_write_inline_data(struct inode *inode, struct page *page); | |
2593 | bool recover_inline_data(struct inode *inode, struct page *npage); | |
2594 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir, | |
2595 | struct fscrypt_name *fname, struct page **res_page); | |
2596 | int make_empty_inline_dir(struct inode *inode, struct inode *parent, | |
2597 | struct page *ipage); | |
2598 | int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, | |
2599 | const struct qstr *orig_name, | |
2600 | struct inode *inode, nid_t ino, umode_t mode); | |
2601 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page, | |
2602 | struct inode *dir, struct inode *inode); | |
2603 | bool f2fs_empty_inline_dir(struct inode *dir); | |
2604 | int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, | |
2605 | struct fscrypt_str *fstr); | |
2606 | int f2fs_inline_data_fiemap(struct inode *inode, | |
2607 | struct fiemap_extent_info *fieinfo, | |
2608 | __u64 start, __u64 len); | |
cde4de12 | 2609 | |
2658e50d JK |
2610 | /* |
2611 | * shrinker.c | |
2612 | */ | |
cac5a3d8 DS |
2613 | unsigned long f2fs_shrink_count(struct shrinker *shrink, |
2614 | struct shrink_control *sc); | |
2615 | unsigned long f2fs_shrink_scan(struct shrinker *shrink, | |
2616 | struct shrink_control *sc); | |
2617 | void f2fs_join_shrinker(struct f2fs_sb_info *sbi); | |
2618 | void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); | |
2658e50d | 2619 | |
a28ef1f5 CY |
2620 | /* |
2621 | * extent_cache.c | |
2622 | */ | |
004b6862 CY |
2623 | struct rb_entry *__lookup_rb_tree(struct rb_root *root, |
2624 | struct rb_entry *cached_re, unsigned int ofs); | |
2625 | struct rb_node **__lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, | |
2626 | struct rb_root *root, struct rb_node **parent, | |
2627 | unsigned int ofs); | |
2628 | struct rb_entry *__lookup_rb_tree_ret(struct rb_root *root, | |
2629 | struct rb_entry *cached_re, unsigned int ofs, | |
2630 | struct rb_entry **prev_entry, struct rb_entry **next_entry, | |
2631 | struct rb_node ***insert_p, struct rb_node **insert_parent, | |
2632 | bool force); | |
df0f6b44 CY |
2633 | bool __check_rb_tree_consistence(struct f2fs_sb_info *sbi, |
2634 | struct rb_root *root); | |
cac5a3d8 DS |
2635 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); |
2636 | bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext); | |
2637 | void f2fs_drop_extent_tree(struct inode *inode); | |
2638 | unsigned int f2fs_destroy_extent_node(struct inode *inode); | |
2639 | void f2fs_destroy_extent_tree(struct inode *inode); | |
2640 | bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, | |
2641 | struct extent_info *ei); | |
2642 | void f2fs_update_extent_cache(struct dnode_of_data *dn); | |
19b2c30d | 2643 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
cac5a3d8 DS |
2644 | pgoff_t fofs, block_t blkaddr, unsigned int len); |
2645 | void init_extent_cache_info(struct f2fs_sb_info *sbi); | |
a28ef1f5 CY |
2646 | int __init create_extent_cache(void); |
2647 | void destroy_extent_cache(void); | |
2648 | ||
cde4de12 JK |
2649 | /* |
2650 | * crypto support | |
2651 | */ | |
0b81d077 | 2652 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
cde4de12 | 2653 | { |
cde4de12 | 2654 | return file_is_encrypt(inode); |
cde4de12 JK |
2655 | } |
2656 | ||
2657 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
2658 | { | |
2659 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2660 | file_set_encrypt(inode); | |
2661 | #endif | |
2662 | } | |
2663 | ||
2664 | static inline bool f2fs_bio_encrypted(struct bio *bio) | |
2665 | { | |
0b81d077 | 2666 | return bio->bi_private != NULL; |
cde4de12 JK |
2667 | } |
2668 | ||
2669 | static inline int f2fs_sb_has_crypto(struct super_block *sb) | |
2670 | { | |
cde4de12 | 2671 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
cde4de12 | 2672 | } |
f424f664 | 2673 | |
0bfd7a09 | 2674 | static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb) |
52763a4b | 2675 | { |
0bfd7a09 | 2676 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED); |
52763a4b JK |
2677 | } |
2678 | ||
178053e2 DLM |
2679 | #ifdef CONFIG_BLK_DEV_ZONED |
2680 | static inline int get_blkz_type(struct f2fs_sb_info *sbi, | |
3c62be17 | 2681 | struct block_device *bdev, block_t blkaddr) |
178053e2 DLM |
2682 | { |
2683 | unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; | |
3c62be17 | 2684 | int i; |
178053e2 | 2685 | |
3c62be17 JK |
2686 | for (i = 0; i < sbi->s_ndevs; i++) |
2687 | if (FDEV(i).bdev == bdev) | |
2688 | return FDEV(i).blkz_type[zno]; | |
2689 | return -EINVAL; | |
178053e2 DLM |
2690 | } |
2691 | #endif | |
2692 | ||
96ba2dec | 2693 | static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi) |
52763a4b | 2694 | { |
96ba2dec DLM |
2695 | struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev); |
2696 | ||
2697 | return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb); | |
52763a4b JK |
2698 | } |
2699 | ||
2700 | static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) | |
2701 | { | |
2702 | clear_opt(sbi, ADAPTIVE); | |
2703 | clear_opt(sbi, LFS); | |
2704 | ||
2705 | switch (mt) { | |
2706 | case F2FS_MOUNT_ADAPTIVE: | |
2707 | set_opt(sbi, ADAPTIVE); | |
2708 | break; | |
2709 | case F2FS_MOUNT_LFS: | |
2710 | set_opt(sbi, LFS); | |
2711 | break; | |
2712 | } | |
2713 | } | |
2714 | ||
fcc85a4d JK |
2715 | static inline bool f2fs_may_encrypt(struct inode *inode) |
2716 | { | |
2717 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
886f56f9 | 2718 | umode_t mode = inode->i_mode; |
fcc85a4d JK |
2719 | |
2720 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
2721 | #else | |
2722 | return 0; | |
2723 | #endif | |
2724 | } | |
2725 | ||
39a53e0c | 2726 | #endif |