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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 | |
1f43e2ad | 133 | #define CP_TRIMMED 0x00000020 |
75ab4cb8 | 134 | |
47b89808 | 135 | #define DEF_BATCHED_TRIM_SECTIONS 2048 |
bba681cb | 136 | #define BATCHED_TRIM_SEGMENTS(sbi) \ |
4ddb1a4d | 137 | (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections)) |
a66cdd98 JK |
138 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
139 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) | |
4ddb1a4d JK |
140 | #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) |
141 | #define DISCARD_ISSUE_RATE 8 | |
60b99b48 | 142 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
dcf25fe8 | 143 | #define DEF_IDLE_INTERVAL 5 /* 5 secs */ |
bba681cb | 144 | |
75ab4cb8 JK |
145 | struct cp_control { |
146 | int reason; | |
4b2fecc8 JK |
147 | __u64 trim_start; |
148 | __u64 trim_end; | |
149 | __u64 trim_minlen; | |
150 | __u64 trimmed; | |
75ab4cb8 JK |
151 | }; |
152 | ||
662befda | 153 | /* |
81c1a0f1 | 154 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
155 | */ |
156 | enum { | |
157 | META_CP, | |
158 | META_NAT, | |
81c1a0f1 | 159 | META_SIT, |
4c521f49 JK |
160 | META_SSA, |
161 | META_POR, | |
662befda CY |
162 | }; |
163 | ||
6451e041 JK |
164 | /* for the list of ino */ |
165 | enum { | |
166 | ORPHAN_INO, /* for orphan ino list */ | |
fff04f90 JK |
167 | APPEND_INO, /* for append ino list */ |
168 | UPDATE_INO, /* for update ino list */ | |
6451e041 JK |
169 | MAX_INO_ENTRY, /* max. list */ |
170 | }; | |
171 | ||
172 | struct ino_entry { | |
39a53e0c JK |
173 | struct list_head list; /* list head */ |
174 | nid_t ino; /* inode number */ | |
175 | }; | |
176 | ||
2710fd7e | 177 | /* for the list of inodes to be GCed */ |
06292073 | 178 | struct inode_entry { |
39a53e0c JK |
179 | struct list_head list; /* list head */ |
180 | struct inode *inode; /* vfs inode pointer */ | |
181 | }; | |
182 | ||
a7eeb823 | 183 | /* for the bitmap indicate blocks to be discarded */ |
7fd9e544 JK |
184 | struct discard_entry { |
185 | struct list_head list; /* list head */ | |
a7eeb823 CY |
186 | block_t start_blkaddr; /* start blockaddr of current segment */ |
187 | unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ | |
7fd9e544 JK |
188 | }; |
189 | ||
ba48a33e CY |
190 | /* max discard pend list number */ |
191 | #define MAX_PLIST_NUM 512 | |
192 | #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ | |
193 | (MAX_PLIST_NUM - 1) : (blk_num - 1)) | |
194 | ||
15469963 JK |
195 | enum { |
196 | D_PREP, | |
197 | D_SUBMIT, | |
198 | D_DONE, | |
199 | }; | |
200 | ||
004b6862 CY |
201 | struct discard_info { |
202 | block_t lstart; /* logical start address */ | |
203 | block_t len; /* length */ | |
204 | block_t start; /* actual start address in dev */ | |
205 | }; | |
206 | ||
b01a9201 | 207 | struct discard_cmd { |
004b6862 CY |
208 | struct rb_node rb_node; /* rb node located in rb-tree */ |
209 | union { | |
210 | struct { | |
211 | block_t lstart; /* logical start address */ | |
212 | block_t len; /* length */ | |
213 | block_t start; /* actual start address in dev */ | |
214 | }; | |
215 | struct discard_info di; /* discard info */ | |
216 | ||
217 | }; | |
b01a9201 JK |
218 | struct list_head list; /* command list */ |
219 | struct completion wait; /* compleation */ | |
c81abe34 | 220 | struct block_device *bdev; /* bdev */ |
ec9895ad | 221 | unsigned short ref; /* reference count */ |
9a744b92 | 222 | unsigned char state; /* state */ |
c81abe34 | 223 | int error; /* bio error */ |
275b66b0 CY |
224 | }; |
225 | ||
0b54fb84 | 226 | struct discard_cmd_control { |
15469963 | 227 | struct task_struct *f2fs_issue_discard; /* discard thread */ |
46f84c2c | 228 | struct list_head entry_list; /* 4KB discard entry list */ |
ba48a33e | 229 | struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ |
46f84c2c | 230 | struct list_head wait_list; /* store on-flushing entries */ |
15469963 JK |
231 | wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ |
232 | struct mutex cmd_lock; | |
d618ebaf CY |
233 | unsigned int nr_discards; /* # of discards in the list */ |
234 | unsigned int max_discards; /* max. discards to be issued */ | |
d84d1cbd | 235 | unsigned int undiscard_blks; /* # of undiscard blocks */ |
8b8dd65f CY |
236 | atomic_t issued_discard; /* # of issued discard */ |
237 | atomic_t issing_discard; /* # of issing discard */ | |
5f32366a | 238 | atomic_t discard_cmd_cnt; /* # of cached cmd count */ |
004b6862 | 239 | struct rb_root root; /* root of discard rb-tree */ |
275b66b0 CY |
240 | }; |
241 | ||
39a53e0c JK |
242 | /* for the list of fsync inodes, used only during recovery */ |
243 | struct fsync_inode_entry { | |
244 | struct list_head list; /* list head */ | |
245 | struct inode *inode; /* vfs inode pointer */ | |
c52e1b10 JK |
246 | block_t blkaddr; /* block address locating the last fsync */ |
247 | block_t last_dentry; /* block address locating the last dentry */ | |
39a53e0c JK |
248 | }; |
249 | ||
68afcf2d TK |
250 | #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) |
251 | #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) | |
39a53e0c | 252 | |
68afcf2d TK |
253 | #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) |
254 | #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) | |
255 | #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) | |
256 | #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) | |
39a53e0c | 257 | |
dfc08a12 CY |
258 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
259 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) | |
309cc2b6 | 260 | |
dfc08a12 | 261 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 262 | { |
dfc08a12 | 263 | int before = nats_in_cursum(journal); |
cac5a3d8 | 264 | |
dfc08a12 | 265 | journal->n_nats = cpu_to_le16(before + i); |
39a53e0c JK |
266 | return before; |
267 | } | |
268 | ||
dfc08a12 | 269 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
39a53e0c | 270 | { |
dfc08a12 | 271 | int before = sits_in_cursum(journal); |
cac5a3d8 | 272 | |
dfc08a12 | 273 | journal->n_sits = cpu_to_le16(before + i); |
39a53e0c JK |
274 | return before; |
275 | } | |
276 | ||
dfc08a12 CY |
277 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
278 | int size, int type) | |
184a5cd2 CY |
279 | { |
280 | if (type == NAT_JOURNAL) | |
dfc08a12 CY |
281 | return size <= MAX_NAT_JENTRIES(journal); |
282 | return size <= MAX_SIT_JENTRIES(journal); | |
184a5cd2 CY |
283 | } |
284 | ||
e9750824 NJ |
285 | /* |
286 | * ioctl commands | |
287 | */ | |
88b88a66 JK |
288 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
289 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
d49f3e89 | 290 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
88b88a66 JK |
291 | |
292 | #define F2FS_IOCTL_MAGIC 0xf5 | |
293 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) | |
294 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) | |
02a1335f | 295 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
1e84371f JK |
296 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
297 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) | |
d07efb50 | 298 | #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32) |
456b88e4 | 299 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
d07efb50 JK |
300 | #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \ |
301 | struct f2fs_defragment) | |
4dd6f977 JK |
302 | #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ |
303 | struct f2fs_move_range) | |
e066b83c JK |
304 | #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \ |
305 | struct f2fs_flush_device) | |
34dc77ad JK |
306 | #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \ |
307 | struct f2fs_gc_range) | |
e9750824 | 308 | |
0b81d077 JK |
309 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
310 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY | |
311 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT | |
f424f664 | 312 | |
1abff93d JK |
313 | /* |
314 | * should be same as XFS_IOC_GOINGDOWN. | |
315 | * Flags for going down operation used by FS_IOC_GOINGDOWN | |
316 | */ | |
317 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ | |
318 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ | |
319 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ | |
320 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ | |
c912a829 | 321 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
1abff93d | 322 | |
e9750824 NJ |
323 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
324 | /* | |
325 | * ioctl commands in 32 bit emulation | |
326 | */ | |
04ef4b62 CY |
327 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
328 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
329 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION | |
e9750824 NJ |
330 | #endif |
331 | ||
34dc77ad JK |
332 | struct f2fs_gc_range { |
333 | u32 sync; | |
334 | u64 start; | |
335 | u64 len; | |
336 | }; | |
337 | ||
d323d005 CY |
338 | struct f2fs_defragment { |
339 | u64 start; | |
340 | u64 len; | |
341 | }; | |
342 | ||
4dd6f977 JK |
343 | struct f2fs_move_range { |
344 | u32 dst_fd; /* destination fd */ | |
345 | u64 pos_in; /* start position in src_fd */ | |
346 | u64 pos_out; /* start position in dst_fd */ | |
347 | u64 len; /* size to move */ | |
348 | }; | |
349 | ||
e066b83c JK |
350 | struct f2fs_flush_device { |
351 | u32 dev_num; /* device number to flush */ | |
352 | u32 segments; /* # of segments to flush */ | |
353 | }; | |
354 | ||
39a53e0c JK |
355 | /* |
356 | * For INODE and NODE manager | |
357 | */ | |
7b3cd7d6 JK |
358 | /* for directory operations */ |
359 | struct f2fs_dentry_ptr { | |
d8c6822a | 360 | struct inode *inode; |
7b3cd7d6 JK |
361 | const void *bitmap; |
362 | struct f2fs_dir_entry *dentry; | |
363 | __u8 (*filename)[F2FS_SLOT_LEN]; | |
364 | int max; | |
365 | }; | |
366 | ||
64c24ecb TK |
367 | static inline void make_dentry_ptr_block(struct inode *inode, |
368 | struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) | |
7b3cd7d6 | 369 | { |
d8c6822a | 370 | d->inode = inode; |
64c24ecb TK |
371 | d->max = NR_DENTRY_IN_BLOCK; |
372 | d->bitmap = &t->dentry_bitmap; | |
373 | d->dentry = t->dentry; | |
374 | d->filename = t->filename; | |
375 | } | |
d8c6822a | 376 | |
64c24ecb TK |
377 | static inline void make_dentry_ptr_inline(struct inode *inode, |
378 | struct f2fs_dentry_ptr *d, struct f2fs_inline_dentry *t) | |
379 | { | |
380 | d->inode = inode; | |
381 | d->max = NR_INLINE_DENTRY; | |
382 | d->bitmap = &t->dentry_bitmap; | |
383 | d->dentry = t->dentry; | |
384 | d->filename = t->filename; | |
7b3cd7d6 JK |
385 | } |
386 | ||
dbe6a5ff JK |
387 | /* |
388 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
389 | * as its node offset to distinguish from index node blocks. | |
390 | * But some bits are used to mark the node block. | |
391 | */ | |
392 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
393 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
394 | enum { |
395 | ALLOC_NODE, /* allocate a new node page if needed */ | |
396 | LOOKUP_NODE, /* look up a node without readahead */ | |
397 | LOOKUP_NODE_RA, /* | |
398 | * look up a node with readahead called | |
4f4124d0 | 399 | * by get_data_block. |
39a53e0c | 400 | */ |
266e97a8 JK |
401 | }; |
402 | ||
a6db67f0 | 403 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
39a53e0c | 404 | |
817202d9 CY |
405 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
406 | ||
13054c54 CY |
407 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
408 | #define EXT_TREE_VEC_SIZE 64 | |
409 | ||
39a53e0c | 410 | /* for in-memory extent cache entry */ |
13054c54 CY |
411 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
412 | ||
413 | /* number of extent info in extent cache we try to shrink */ | |
414 | #define EXTENT_CACHE_SHRINK_NUMBER 128 | |
c11abd1a | 415 | |
54c2258c CY |
416 | struct rb_entry { |
417 | struct rb_node rb_node; /* rb node located in rb-tree */ | |
418 | unsigned int ofs; /* start offset of the entry */ | |
419 | unsigned int len; /* length of the entry */ | |
420 | }; | |
421 | ||
39a53e0c | 422 | struct extent_info { |
13054c54 | 423 | unsigned int fofs; /* start offset in a file */ |
13054c54 | 424 | unsigned int len; /* length of the extent */ |
54c2258c | 425 | u32 blk; /* start block address of the extent */ |
13054c54 CY |
426 | }; |
427 | ||
428 | struct extent_node { | |
54c2258c CY |
429 | struct rb_node rb_node; |
430 | union { | |
431 | struct { | |
432 | unsigned int fofs; | |
433 | unsigned int len; | |
434 | u32 blk; | |
435 | }; | |
436 | struct extent_info ei; /* extent info */ | |
437 | ||
438 | }; | |
13054c54 | 439 | struct list_head list; /* node in global extent list of sbi */ |
201ef5e0 | 440 | struct extent_tree *et; /* extent tree pointer */ |
13054c54 CY |
441 | }; |
442 | ||
443 | struct extent_tree { | |
444 | nid_t ino; /* inode number */ | |
445 | struct rb_root root; /* root of extent info rb-tree */ | |
62c8af65 | 446 | struct extent_node *cached_en; /* recently accessed extent node */ |
3e72f721 | 447 | struct extent_info largest; /* largested extent info */ |
137d09f0 | 448 | struct list_head list; /* to be used by sbi->zombie_list */ |
13054c54 | 449 | rwlock_t lock; /* protect extent info rb-tree */ |
68e35385 | 450 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
39a53e0c JK |
451 | }; |
452 | ||
003a3e1d JK |
453 | /* |
454 | * This structure is taken from ext4_map_blocks. | |
455 | * | |
456 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). | |
457 | */ | |
458 | #define F2FS_MAP_NEW (1 << BH_New) | |
459 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) | |
7f63eb77 JK |
460 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
461 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ | |
462 | F2FS_MAP_UNWRITTEN) | |
003a3e1d JK |
463 | |
464 | struct f2fs_map_blocks { | |
465 | block_t m_pblk; | |
466 | block_t m_lblk; | |
467 | unsigned int m_len; | |
468 | unsigned int m_flags; | |
da85985c | 469 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
003a3e1d JK |
470 | }; |
471 | ||
e2b4e2bc CY |
472 | /* for flag in get_data_block */ |
473 | #define F2FS_GET_BLOCK_READ 0 | |
474 | #define F2FS_GET_BLOCK_DIO 1 | |
475 | #define F2FS_GET_BLOCK_FIEMAP 2 | |
476 | #define F2FS_GET_BLOCK_BMAP 3 | |
b439b103 | 477 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
24b84912 | 478 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
e2b4e2bc | 479 | |
39a53e0c JK |
480 | /* |
481 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
482 | */ | |
483 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 484 | #define FADVISE_LOST_PINO_BIT 0x02 |
cde4de12 | 485 | #define FADVISE_ENCRYPT_BIT 0x04 |
e7d55452 | 486 | #define FADVISE_ENC_NAME_BIT 0x08 |
26787236 | 487 | #define FADVISE_KEEP_SIZE_BIT 0x10 |
39a53e0c | 488 | |
b5492af7 JK |
489 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
490 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) | |
491 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) | |
492 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) | |
493 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) | |
494 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) | |
cde4de12 JK |
495 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
496 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) | |
497 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) | |
e7d55452 JK |
498 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
499 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) | |
26787236 JK |
500 | #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) |
501 | #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) | |
cde4de12 | 502 | |
ab9fa662 JK |
503 | #define DEF_DIR_LEVEL 0 |
504 | ||
39a53e0c JK |
505 | struct f2fs_inode_info { |
506 | struct inode vfs_inode; /* serve a vfs inode */ | |
507 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
508 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 509 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 510 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 511 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
512 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
513 | ||
514 | /* Use below internally in f2fs*/ | |
515 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 516 | struct rw_semaphore i_sem; /* protect fi info */ |
204706c7 | 517 | atomic_t dirty_pages; /* # of dirty pages */ |
39a53e0c JK |
518 | f2fs_hash_t chash; /* hash value of given file name */ |
519 | unsigned int clevel; /* maximum level of given file name */ | |
88c5c13a | 520 | struct task_struct *task; /* lookup and create consistency */ |
39a53e0c | 521 | nid_t i_xattr_nid; /* node id that contains xattrs */ |
26de9b11 | 522 | loff_t last_disk_size; /* lastly written file size */ |
88b88a66 | 523 | |
0f18b462 JK |
524 | struct list_head dirty_list; /* dirty list for dirs and files */ |
525 | struct list_head gdirty_list; /* linked in global dirty list */ | |
88b88a66 JK |
526 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
527 | struct mutex inmem_lock; /* lock for inmemory pages */ | |
3e72f721 | 528 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
82e0a5aa | 529 | struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */ |
5a3a2d83 | 530 | struct rw_semaphore i_mmap_sem; |
39a53e0c JK |
531 | }; |
532 | ||
533 | static inline void get_extent_info(struct extent_info *ext, | |
bd933d4f | 534 | struct f2fs_extent *i_ext) |
39a53e0c | 535 | { |
bd933d4f CY |
536 | ext->fofs = le32_to_cpu(i_ext->fofs); |
537 | ext->blk = le32_to_cpu(i_ext->blk); | |
538 | ext->len = le32_to_cpu(i_ext->len); | |
39a53e0c JK |
539 | } |
540 | ||
541 | static inline void set_raw_extent(struct extent_info *ext, | |
542 | struct f2fs_extent *i_ext) | |
543 | { | |
39a53e0c | 544 | i_ext->fofs = cpu_to_le32(ext->fofs); |
4d0b0bd4 | 545 | i_ext->blk = cpu_to_le32(ext->blk); |
39a53e0c | 546 | i_ext->len = cpu_to_le32(ext->len); |
39a53e0c JK |
547 | } |
548 | ||
429511cd CY |
549 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
550 | u32 blk, unsigned int len) | |
551 | { | |
552 | ei->fofs = fofs; | |
553 | ei->blk = blk; | |
554 | ei->len = len; | |
555 | } | |
556 | ||
004b6862 CY |
557 | static inline bool __is_discard_mergeable(struct discard_info *back, |
558 | struct discard_info *front) | |
559 | { | |
560 | return back->lstart + back->len == front->lstart; | |
561 | } | |
562 | ||
563 | static inline bool __is_discard_back_mergeable(struct discard_info *cur, | |
564 | struct discard_info *back) | |
565 | { | |
566 | return __is_discard_mergeable(back, cur); | |
567 | } | |
568 | ||
569 | static inline bool __is_discard_front_mergeable(struct discard_info *cur, | |
570 | struct discard_info *front) | |
571 | { | |
572 | return __is_discard_mergeable(cur, front); | |
573 | } | |
574 | ||
429511cd CY |
575 | static inline bool __is_extent_mergeable(struct extent_info *back, |
576 | struct extent_info *front) | |
577 | { | |
578 | return (back->fofs + back->len == front->fofs && | |
579 | back->blk + back->len == front->blk); | |
580 | } | |
581 | ||
582 | static inline bool __is_back_mergeable(struct extent_info *cur, | |
583 | struct extent_info *back) | |
584 | { | |
585 | return __is_extent_mergeable(back, cur); | |
586 | } | |
587 | ||
588 | static inline bool __is_front_mergeable(struct extent_info *cur, | |
589 | struct extent_info *front) | |
590 | { | |
591 | return __is_extent_mergeable(cur, front); | |
592 | } | |
593 | ||
cac5a3d8 | 594 | extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); |
205b9822 JK |
595 | static inline void __try_update_largest_extent(struct inode *inode, |
596 | struct extent_tree *et, struct extent_node *en) | |
4abd3f5a | 597 | { |
205b9822 | 598 | if (en->ei.len > et->largest.len) { |
4abd3f5a | 599 | et->largest = en->ei; |
7c45729a | 600 | f2fs_mark_inode_dirty_sync(inode, true); |
205b9822 | 601 | } |
4abd3f5a CY |
602 | } |
603 | ||
b8559dc2 CY |
604 | enum nid_list { |
605 | FREE_NID_LIST, | |
606 | ALLOC_NID_LIST, | |
607 | MAX_NID_LIST, | |
608 | }; | |
609 | ||
39a53e0c JK |
610 | struct f2fs_nm_info { |
611 | block_t nat_blkaddr; /* base disk address of NAT */ | |
612 | nid_t max_nid; /* maximum possible node ids */ | |
04d47e67 | 613 | nid_t available_nids; /* # of available node ids */ |
39a53e0c | 614 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 615 | unsigned int ram_thresh; /* control the memory footprint */ |
ea1a29a0 | 616 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
2304cb0c | 617 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
39a53e0c JK |
618 | |
619 | /* NAT cache management */ | |
620 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
309cc2b6 | 621 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
b873b798 | 622 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
39a53e0c | 623 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
309cc2b6 | 624 | unsigned int nat_cnt; /* the # of cached nat entries */ |
aec71382 | 625 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
22ad0b6a | 626 | unsigned int nat_blocks; /* # of nat blocks */ |
39a53e0c JK |
627 | |
628 | /* free node ids management */ | |
8a7ed66a | 629 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
b8559dc2 CY |
630 | struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */ |
631 | unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */ | |
632 | spinlock_t nid_list_lock; /* protect nid lists ops */ | |
39a53e0c | 633 | struct mutex build_lock; /* lock for build free nids */ |
4ac91242 CY |
634 | unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE]; |
635 | unsigned char *nat_block_bitmap; | |
586d1492 | 636 | unsigned short *free_nid_count; /* free nid count of NAT block */ |
39a53e0c JK |
637 | |
638 | /* for checkpoint */ | |
639 | char *nat_bitmap; /* NAT bitmap pointer */ | |
22ad0b6a JK |
640 | |
641 | unsigned int nat_bits_blocks; /* # of nat bits blocks */ | |
642 | unsigned char *nat_bits; /* NAT bits blocks */ | |
643 | unsigned char *full_nat_bits; /* full NAT pages */ | |
644 | unsigned char *empty_nat_bits; /* empty NAT pages */ | |
599a09b2 CY |
645 | #ifdef CONFIG_F2FS_CHECK_FS |
646 | char *nat_bitmap_mir; /* NAT bitmap mirror */ | |
647 | #endif | |
39a53e0c JK |
648 | int bitmap_size; /* bitmap size */ |
649 | }; | |
650 | ||
651 | /* | |
652 | * this structure is used as one of function parameters. | |
653 | * all the information are dedicated to a given direct node block determined | |
654 | * by the data offset in a file. | |
655 | */ | |
656 | struct dnode_of_data { | |
657 | struct inode *inode; /* vfs inode pointer */ | |
658 | struct page *inode_page; /* its inode page, NULL is possible */ | |
659 | struct page *node_page; /* cached direct node page */ | |
660 | nid_t nid; /* node id of the direct node block */ | |
661 | unsigned int ofs_in_node; /* data offset in the node page */ | |
662 | bool inode_page_locked; /* inode page is locked or not */ | |
93bae099 | 663 | bool node_changed; /* is node block changed */ |
3cf45747 CY |
664 | char cur_level; /* level of hole node page */ |
665 | char max_level; /* level of current page located */ | |
39a53e0c JK |
666 | block_t data_blkaddr; /* block address of the node block */ |
667 | }; | |
668 | ||
669 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
670 | struct page *ipage, struct page *npage, nid_t nid) | |
671 | { | |
d66d1f76 | 672 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
673 | dn->inode = inode; |
674 | dn->inode_page = ipage; | |
675 | dn->node_page = npage; | |
676 | dn->nid = nid; | |
39a53e0c JK |
677 | } |
678 | ||
679 | /* | |
680 | * For SIT manager | |
681 | * | |
682 | * By default, there are 6 active log areas across the whole main area. | |
683 | * When considering hot and cold data separation to reduce cleaning overhead, | |
684 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
685 | * respectively. | |
686 | * In the current design, you should not change the numbers intentionally. | |
687 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
688 | * logs individually according to the underlying devices. (default: 6) | |
689 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
690 | * data and 8 for node logs. | |
691 | */ | |
692 | #define NR_CURSEG_DATA_TYPE (3) | |
693 | #define NR_CURSEG_NODE_TYPE (3) | |
694 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
695 | ||
696 | enum { | |
697 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
698 | CURSEG_WARM_DATA, /* data blocks */ | |
699 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
700 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
701 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
702 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
38aa0889 | 703 | NO_CHECK_TYPE, |
39a53e0c JK |
704 | }; |
705 | ||
6b4afdd7 | 706 | struct flush_cmd { |
6b4afdd7 | 707 | struct completion wait; |
721bd4d5 | 708 | struct llist_node llnode; |
6b4afdd7 JK |
709 | int ret; |
710 | }; | |
711 | ||
a688b9d9 GZ |
712 | struct flush_cmd_control { |
713 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
714 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
8b8dd65f CY |
715 | atomic_t issued_flush; /* # of issued flushes */ |
716 | atomic_t issing_flush; /* # of issing flushes */ | |
721bd4d5 GZ |
717 | struct llist_head issue_list; /* list for command issue */ |
718 | struct llist_node *dispatch_list; /* list for command dispatch */ | |
a688b9d9 GZ |
719 | }; |
720 | ||
39a53e0c JK |
721 | struct f2fs_sm_info { |
722 | struct sit_info *sit_info; /* whole segment information */ | |
723 | struct free_segmap_info *free_info; /* free segment information */ | |
724 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
725 | struct curseg_info *curseg_array; /* active segment information */ | |
726 | ||
39a53e0c JK |
727 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
728 | block_t main_blkaddr; /* start block address of main area */ | |
729 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
730 | ||
731 | unsigned int segment_count; /* total # of segments */ | |
732 | unsigned int main_segments; /* # of segments in main area */ | |
733 | unsigned int reserved_segments; /* # of reserved segments */ | |
734 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
735 | |
736 | /* a threshold to reclaim prefree segments */ | |
737 | unsigned int rec_prefree_segments; | |
7fd9e544 | 738 | |
bba681cb JK |
739 | /* for batched trimming */ |
740 | unsigned int trim_sections; /* # of sections to trim */ | |
741 | ||
184a5cd2 CY |
742 | struct list_head sit_entry_set; /* sit entry set list */ |
743 | ||
216fbd64 JK |
744 | unsigned int ipu_policy; /* in-place-update policy */ |
745 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
c1ce1b02 | 746 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
ef095d19 | 747 | unsigned int min_hot_blocks; /* threshold for hot block allocation */ |
6b4afdd7 JK |
748 | |
749 | /* for flush command control */ | |
b01a9201 | 750 | struct flush_cmd_control *fcc_info; |
a688b9d9 | 751 | |
0b54fb84 JK |
752 | /* for discard command control */ |
753 | struct discard_cmd_control *dcc_info; | |
39a53e0c JK |
754 | }; |
755 | ||
39a53e0c JK |
756 | /* |
757 | * For superblock | |
758 | */ | |
759 | /* | |
760 | * COUNT_TYPE for monitoring | |
761 | * | |
762 | * f2fs monitors the number of several block types such as on-writeback, | |
763 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
764 | */ | |
36951b38 | 765 | #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) |
39a53e0c | 766 | enum count_type { |
39a53e0c | 767 | F2FS_DIRTY_DENTS, |
c227f912 | 768 | F2FS_DIRTY_DATA, |
39a53e0c JK |
769 | F2FS_DIRTY_NODES, |
770 | F2FS_DIRTY_META, | |
8dcf2ff7 | 771 | F2FS_INMEM_PAGES, |
0f18b462 | 772 | F2FS_DIRTY_IMETA, |
36951b38 CY |
773 | F2FS_WB_CP_DATA, |
774 | F2FS_WB_DATA, | |
39a53e0c JK |
775 | NR_COUNT_TYPE, |
776 | }; | |
777 | ||
39a53e0c | 778 | /* |
e1c42045 | 779 | * The below are the page types of bios used in submit_bio(). |
39a53e0c JK |
780 | * The available types are: |
781 | * DATA User data pages. It operates as async mode. | |
782 | * NODE Node pages. It operates as async mode. | |
783 | * META FS metadata pages such as SIT, NAT, CP. | |
784 | * NR_PAGE_TYPE The number of page types. | |
785 | * META_FLUSH Make sure the previous pages are written | |
786 | * with waiting the bio's completion | |
787 | * ... Only can be used with META. | |
788 | */ | |
7d5e5109 | 789 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
790 | enum page_type { |
791 | DATA, | |
792 | NODE, | |
793 | META, | |
794 | NR_PAGE_TYPE, | |
795 | META_FLUSH, | |
8ce67cb0 JK |
796 | INMEM, /* the below types are used by tracepoints only. */ |
797 | INMEM_DROP, | |
8c242db9 | 798 | INMEM_INVALIDATE, |
28bc106b | 799 | INMEM_REVOKE, |
8ce67cb0 JK |
800 | IPU, |
801 | OPU, | |
39a53e0c JK |
802 | }; |
803 | ||
a912b54d JK |
804 | enum temp_type { |
805 | HOT = 0, /* must be zero for meta bio */ | |
806 | WARM, | |
807 | COLD, | |
808 | NR_TEMP_TYPE, | |
809 | }; | |
810 | ||
cc15620b JK |
811 | enum need_lock_type { |
812 | LOCK_REQ = 0, | |
813 | LOCK_DONE, | |
814 | LOCK_RETRY, | |
815 | }; | |
816 | ||
458e6197 | 817 | struct f2fs_io_info { |
05ca3632 | 818 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
7e8f2308 | 819 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
a912b54d | 820 | enum temp_type temp; /* contains HOT/WARM/COLD */ |
04d328de | 821 | int op; /* contains REQ_OP_ */ |
ef295ecf | 822 | int op_flags; /* req_flag_bits */ |
7a9d7548 | 823 | block_t new_blkaddr; /* new block address to be written */ |
28bc106b | 824 | block_t old_blkaddr; /* old block address before Cow */ |
05ca3632 | 825 | struct page *page; /* page to be written */ |
4375a336 | 826 | struct page *encrypted_page; /* encrypted page */ |
fb830fc5 | 827 | struct list_head list; /* serialize IOs */ |
d68f735b | 828 | bool submitted; /* indicate IO submission */ |
cc15620b | 829 | int need_lock; /* indicate we need to lock cp_rwsem */ |
fb830fc5 | 830 | bool in_list; /* indicate fio is in io_list */ |
458e6197 JK |
831 | }; |
832 | ||
68afcf2d | 833 | #define is_read_io(rw) ((rw) == READ) |
1ff7bd3b | 834 | struct f2fs_bio_info { |
458e6197 | 835 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
836 | struct bio *bio; /* bios to merge */ |
837 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 838 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 839 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
fb830fc5 CY |
840 | spinlock_t io_lock; /* serialize DATA/NODE IOs */ |
841 | struct list_head io_list; /* track fios */ | |
1ff7bd3b JK |
842 | }; |
843 | ||
3c62be17 JK |
844 | #define FDEV(i) (sbi->devs[i]) |
845 | #define RDEV(i) (raw_super->devs[i]) | |
846 | struct f2fs_dev_info { | |
847 | struct block_device *bdev; | |
848 | char path[MAX_PATH_LEN]; | |
849 | unsigned int total_segments; | |
850 | block_t start_blk; | |
851 | block_t end_blk; | |
852 | #ifdef CONFIG_BLK_DEV_ZONED | |
853 | unsigned int nr_blkz; /* Total number of zones */ | |
854 | u8 *blkz_type; /* Array of zones type */ | |
855 | #endif | |
856 | }; | |
857 | ||
c227f912 CY |
858 | enum inode_type { |
859 | DIR_INODE, /* for dirty dir inode */ | |
860 | FILE_INODE, /* for dirty regular/symlink inode */ | |
0f18b462 | 861 | DIRTY_META, /* for all dirtied inode metadata */ |
c227f912 CY |
862 | NR_INODE_TYPE, |
863 | }; | |
864 | ||
67298804 CY |
865 | /* for inner inode cache management */ |
866 | struct inode_management { | |
867 | struct radix_tree_root ino_root; /* ino entry array */ | |
868 | spinlock_t ino_lock; /* for ino entry lock */ | |
869 | struct list_head ino_list; /* inode list head */ | |
870 | unsigned long ino_num; /* number of entries */ | |
871 | }; | |
872 | ||
caf0047e CY |
873 | /* For s_flag in struct f2fs_sb_info */ |
874 | enum { | |
875 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ | |
876 | SBI_IS_CLOSE, /* specify unmounting */ | |
877 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ | |
878 | SBI_POR_DOING, /* recovery is doing or not */ | |
df728b0f | 879 | SBI_NEED_SB_WRITE, /* need to recover superblock */ |
bbf156f7 | 880 | SBI_NEED_CP, /* need to checkpoint */ |
caf0047e CY |
881 | }; |
882 | ||
6beceb54 JK |
883 | enum { |
884 | CP_TIME, | |
d0239e1b | 885 | REQ_TIME, |
6beceb54 JK |
886 | MAX_TIME, |
887 | }; | |
888 | ||
39a53e0c JK |
889 | struct f2fs_sb_info { |
890 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 891 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c | 892 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
e8240f65 | 893 | int valid_super_block; /* valid super block no */ |
fadb2fb8 | 894 | unsigned long s_flag; /* flags for sbi */ |
39a53e0c | 895 | |
178053e2 | 896 | #ifdef CONFIG_BLK_DEV_ZONED |
178053e2 DLM |
897 | unsigned int blocks_per_blkz; /* F2FS blocks per zone */ |
898 | unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ | |
178053e2 DLM |
899 | #endif |
900 | ||
39a53e0c JK |
901 | /* for node-related operations */ |
902 | struct f2fs_nm_info *nm_info; /* node manager */ | |
903 | struct inode *node_inode; /* cache node blocks */ | |
904 | ||
905 | /* for segment-related operations */ | |
906 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
907 | |
908 | /* for bio operations */ | |
a912b54d | 909 | struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ |
e41e6d75 CY |
910 | struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE]; |
911 | /* bio ordering for NODE/DATA */ | |
0a595eba JK |
912 | int write_io_size_bits; /* Write IO size bits */ |
913 | mempool_t *write_io_dummy; /* Dummy pages */ | |
39a53e0c JK |
914 | |
915 | /* for checkpoint */ | |
916 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
8508e44a | 917 | int cur_cp_pack; /* remain current cp pack */ |
aaec2b1d | 918 | spinlock_t cp_lock; /* for flag in ckpt */ |
39a53e0c | 919 | struct inode *meta_inode; /* cache meta blocks */ |
39936837 | 920 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
b873b798 | 921 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
b3582c68 | 922 | struct rw_semaphore node_write; /* locking node writes */ |
59c9081b | 923 | struct rw_semaphore node_change; /* locking node change */ |
fb51b5ef | 924 | wait_queue_head_t cp_wait; |
6beceb54 JK |
925 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
926 | long interval_time[MAX_TIME]; /* to store thresholds */ | |
39a53e0c | 927 | |
67298804 | 928 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
6451e041 JK |
929 | |
930 | /* for orphan inode, use 0'th array */ | |
0d47c1ad | 931 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c | 932 | |
c227f912 CY |
933 | /* for inode management */ |
934 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ | |
935 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ | |
39a53e0c | 936 | |
13054c54 CY |
937 | /* for extent tree cache */ |
938 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ | |
5e8256ac | 939 | struct mutex extent_tree_lock; /* locking extent radix tree */ |
13054c54 CY |
940 | struct list_head extent_list; /* lru list for shrinker */ |
941 | spinlock_t extent_lock; /* locking extent lru list */ | |
7441ccef | 942 | atomic_t total_ext_tree; /* extent tree count */ |
137d09f0 | 943 | struct list_head zombie_list; /* extent zombie tree list */ |
74fd8d99 | 944 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
13054c54 CY |
945 | atomic_t total_ext_node; /* extent info count */ |
946 | ||
e1c42045 | 947 | /* basic filesystem units */ |
39a53e0c JK |
948 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
949 | unsigned int log_blocksize; /* log2 block size */ | |
950 | unsigned int blocksize; /* block size */ | |
951 | unsigned int root_ino_num; /* root inode number*/ | |
952 | unsigned int node_ino_num; /* node inode number*/ | |
953 | unsigned int meta_ino_num; /* meta inode number*/ | |
954 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
955 | unsigned int blocks_per_seg; /* blocks per segment */ | |
956 | unsigned int segs_per_sec; /* segments per section */ | |
957 | unsigned int secs_per_zone; /* sections per zone */ | |
958 | unsigned int total_sections; /* total section count */ | |
959 | unsigned int total_node_count; /* total node block count */ | |
960 | unsigned int total_valid_node_count; /* valid node block count */ | |
e0afc4d6 | 961 | loff_t max_file_blocks; /* max block index of file */ |
39a53e0c | 962 | int active_logs; /* # of active logs */ |
ab9fa662 | 963 | int dir_level; /* directory level */ |
39a53e0c JK |
964 | |
965 | block_t user_block_count; /* # of user blocks */ | |
966 | block_t total_valid_block_count; /* # of valid blocks */ | |
a66cdd98 | 967 | block_t discard_blks; /* discard command candidats */ |
39a53e0c | 968 | block_t last_valid_block_count; /* for recovery */ |
daeb433e CY |
969 | block_t reserved_blocks; /* configurable reserved blocks */ |
970 | ||
39a53e0c | 971 | u32 s_next_generation; /* for NFS support */ |
523be8a6 JK |
972 | |
973 | /* # of pages, see count_type */ | |
35782b23 | 974 | atomic_t nr_pages[NR_COUNT_TYPE]; |
41382ec4 JK |
975 | /* # of allocated blocks */ |
976 | struct percpu_counter alloc_valid_block_count; | |
39a53e0c | 977 | |
687de7f1 JK |
978 | /* writeback control */ |
979 | atomic_t wb_sync_req; /* count # of WB_SYNC threads */ | |
980 | ||
513c5f37 JK |
981 | /* valid inode count */ |
982 | struct percpu_counter total_valid_inode_count; | |
983 | ||
39a53e0c JK |
984 | struct f2fs_mount_info mount_opt; /* mount options */ |
985 | ||
986 | /* for cleaning operations */ | |
987 | struct mutex gc_mutex; /* mutex for GC */ | |
988 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 989 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 990 | |
e93b9865 HP |
991 | /* threshold for converting bg victims for fg */ |
992 | u64 fggc_threshold; | |
993 | ||
b1c57c1c JK |
994 | /* maximum # of trials to find a victim segment for SSR and GC */ |
995 | unsigned int max_victim_search; | |
996 | ||
39a53e0c JK |
997 | /* |
998 | * for stat information. | |
999 | * one is for the LFS mode, and the other is for the SSR mode. | |
1000 | */ | |
35b09d82 | 1001 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
1002 | struct f2fs_stat_info *stat_info; /* FS status information */ |
1003 | unsigned int segment_count[2]; /* # of allocated segments */ | |
1004 | unsigned int block_count[2]; /* # of allocated blocks */ | |
b9a2c252 | 1005 | atomic_t inplace_count; /* # of inplace update */ |
5b7ee374 CY |
1006 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
1007 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ | |
1008 | atomic64_t read_hit_largest; /* # of hit largest extent node */ | |
1009 | atomic64_t read_hit_cached; /* # of hit cached extent node */ | |
d5e8f6c9 | 1010 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
03e14d52 CY |
1011 | atomic_t inline_inode; /* # of inline_data inodes */ |
1012 | atomic_t inline_dir; /* # of inline_dentry inodes */ | |
26a28a0c | 1013 | atomic_t aw_cnt; /* # of atomic writes */ |
648d50ba | 1014 | atomic_t vw_cnt; /* # of volatile writes */ |
26a28a0c | 1015 | atomic_t max_aw_cnt; /* max # of atomic writes */ |
648d50ba | 1016 | atomic_t max_vw_cnt; /* max # of volatile writes */ |
39a53e0c | 1017 | int bg_gc; /* background gc calls */ |
33fbd510 | 1018 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
35b09d82 | 1019 | #endif |
39a53e0c | 1020 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
1021 | |
1022 | /* For sysfs suppport */ | |
1023 | struct kobject s_kobj; | |
1024 | struct completion s_kobj_unregister; | |
2658e50d JK |
1025 | |
1026 | /* For shrinker support */ | |
1027 | struct list_head s_list; | |
3c62be17 JK |
1028 | int s_ndevs; /* number of devices */ |
1029 | struct f2fs_dev_info *devs; /* for device list */ | |
2658e50d JK |
1030 | struct mutex umount_mutex; |
1031 | unsigned int shrinker_run_no; | |
8f1dbbbb SL |
1032 | |
1033 | /* For write statistics */ | |
1034 | u64 sectors_written_start; | |
1035 | u64 kbytes_written; | |
43b6573b KM |
1036 | |
1037 | /* Reference to checksum algorithm driver via cryptoapi */ | |
1038 | struct crypto_shash *s_chksum_driver; | |
1ecc0c5c CY |
1039 | |
1040 | /* For fault injection */ | |
1041 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1042 | struct f2fs_fault_info fault_info; | |
1043 | #endif | |
39a53e0c JK |
1044 | }; |
1045 | ||
1ecc0c5c | 1046 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
55523519 CY |
1047 | #define f2fs_show_injection_info(type) \ |
1048 | printk("%sF2FS-fs : inject %s in %s of %pF\n", \ | |
1049 | KERN_INFO, fault_name[type], \ | |
1050 | __func__, __builtin_return_address(0)) | |
1ecc0c5c CY |
1051 | static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) |
1052 | { | |
1053 | struct f2fs_fault_info *ffi = &sbi->fault_info; | |
1054 | ||
1055 | if (!ffi->inject_rate) | |
1056 | return false; | |
1057 | ||
1058 | if (!IS_FAULT_SET(ffi, type)) | |
1059 | return false; | |
1060 | ||
1061 | atomic_inc(&ffi->inject_ops); | |
1062 | if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { | |
1063 | atomic_set(&ffi->inject_ops, 0); | |
1ecc0c5c CY |
1064 | return true; |
1065 | } | |
1066 | return false; | |
1067 | } | |
1068 | #endif | |
1069 | ||
8f1dbbbb SL |
1070 | /* For write statistics. Suppose sector size is 512 bytes, |
1071 | * and the return value is in kbytes. s is of struct f2fs_sb_info. | |
1072 | */ | |
1073 | #define BD_PART_WRITTEN(s) \ | |
68afcf2d TK |
1074 | (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \ |
1075 | (s)->sectors_written_start) >> 1) | |
8f1dbbbb | 1076 | |
6beceb54 JK |
1077 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
1078 | { | |
1079 | sbi->last_time[type] = jiffies; | |
1080 | } | |
1081 | ||
1082 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) | |
1083 | { | |
1084 | struct timespec ts = {sbi->interval_time[type], 0}; | |
1085 | unsigned long interval = timespec_to_jiffies(&ts); | |
1086 | ||
1087 | return time_after(jiffies, sbi->last_time[type] + interval); | |
1088 | } | |
1089 | ||
d0239e1b JK |
1090 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
1091 | { | |
1092 | struct block_device *bdev = sbi->sb->s_bdev; | |
1093 | struct request_queue *q = bdev_get_queue(bdev); | |
1094 | struct request_list *rl = &q->root_rl; | |
1095 | ||
1096 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) | |
1097 | return 0; | |
1098 | ||
1099 | return f2fs_time_over(sbi, REQ_TIME); | |
1100 | } | |
1101 | ||
39a53e0c JK |
1102 | /* |
1103 | * Inline functions | |
1104 | */ | |
43b6573b KM |
1105 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
1106 | unsigned int length) | |
1107 | { | |
1108 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); | |
1109 | u32 *ctx = (u32 *)shash_desc_ctx(shash); | |
1110 | int err; | |
1111 | ||
1112 | shash->tfm = sbi->s_chksum_driver; | |
1113 | shash->flags = 0; | |
1114 | *ctx = F2FS_SUPER_MAGIC; | |
1115 | ||
1116 | err = crypto_shash_update(shash, address, length); | |
1117 | BUG_ON(err); | |
1118 | ||
1119 | return *ctx; | |
1120 | } | |
1121 | ||
1122 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, | |
1123 | void *buf, size_t buf_size) | |
1124 | { | |
1125 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; | |
1126 | } | |
1127 | ||
39a53e0c JK |
1128 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
1129 | { | |
1130 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
1131 | } | |
1132 | ||
1133 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
1134 | { | |
1135 | return sb->s_fs_info; | |
1136 | } | |
1137 | ||
4081363f JK |
1138 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
1139 | { | |
1140 | return F2FS_SB(inode->i_sb); | |
1141 | } | |
1142 | ||
1143 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) | |
1144 | { | |
1145 | return F2FS_I_SB(mapping->host); | |
1146 | } | |
1147 | ||
1148 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) | |
1149 | { | |
1150 | return F2FS_M_SB(page->mapping); | |
1151 | } | |
1152 | ||
39a53e0c JK |
1153 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
1154 | { | |
1155 | return (struct f2fs_super_block *)(sbi->raw_super); | |
1156 | } | |
1157 | ||
1158 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
1159 | { | |
1160 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
1161 | } | |
1162 | ||
45590710 GZ |
1163 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
1164 | { | |
1165 | return (struct f2fs_node *)page_address(page); | |
1166 | } | |
1167 | ||
58bfaf44 JK |
1168 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
1169 | { | |
1170 | return &((struct f2fs_node *)page_address(page))->i; | |
1171 | } | |
1172 | ||
39a53e0c JK |
1173 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
1174 | { | |
1175 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
1176 | } | |
1177 | ||
1178 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
1179 | { | |
1180 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
1181 | } | |
1182 | ||
1183 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
1184 | { | |
1185 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
1186 | } | |
1187 | ||
1188 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
1189 | { | |
1190 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
1191 | } | |
1192 | ||
1193 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
1194 | { | |
1195 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
1196 | } | |
1197 | ||
9df27d98 GZ |
1198 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
1199 | { | |
1200 | return sbi->meta_inode->i_mapping; | |
1201 | } | |
1202 | ||
4ef51a8f JK |
1203 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
1204 | { | |
1205 | return sbi->node_inode->i_mapping; | |
1206 | } | |
1207 | ||
caf0047e CY |
1208 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
1209 | { | |
fadb2fb8 | 1210 | return test_bit(type, &sbi->s_flag); |
caf0047e CY |
1211 | } |
1212 | ||
1213 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) | |
39a53e0c | 1214 | { |
fadb2fb8 | 1215 | set_bit(type, &sbi->s_flag); |
39a53e0c JK |
1216 | } |
1217 | ||
caf0047e | 1218 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
39a53e0c | 1219 | { |
fadb2fb8 | 1220 | clear_bit(type, &sbi->s_flag); |
39a53e0c JK |
1221 | } |
1222 | ||
d71b5564 JK |
1223 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
1224 | { | |
1225 | return le64_to_cpu(cp->checkpoint_ver); | |
1226 | } | |
1227 | ||
ced2c7ea KM |
1228 | static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) |
1229 | { | |
1230 | size_t crc_offset = le32_to_cpu(cp->checksum_offset); | |
1231 | return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); | |
1232 | } | |
1233 | ||
aaec2b1d | 1234 | static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
25ca923b JK |
1235 | { |
1236 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
aaec2b1d | 1237 | |
25ca923b JK |
1238 | return ckpt_flags & f; |
1239 | } | |
1240 | ||
aaec2b1d | 1241 | static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
25ca923b | 1242 | { |
aaec2b1d CY |
1243 | return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); |
1244 | } | |
1245 | ||
1246 | static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1247 | { | |
1248 | unsigned int ckpt_flags; | |
1249 | ||
1250 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
25ca923b JK |
1251 | ckpt_flags |= f; |
1252 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1253 | } | |
1254 | ||
aaec2b1d | 1255 | static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
25ca923b | 1256 | { |
aaec2b1d CY |
1257 | spin_lock(&sbi->cp_lock); |
1258 | __set_ckpt_flags(F2FS_CKPT(sbi), f); | |
1259 | spin_unlock(&sbi->cp_lock); | |
1260 | } | |
1261 | ||
1262 | static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
1263 | { | |
1264 | unsigned int ckpt_flags; | |
1265 | ||
1266 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
25ca923b JK |
1267 | ckpt_flags &= (~f); |
1268 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
1269 | } | |
1270 | ||
aaec2b1d CY |
1271 | static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
1272 | { | |
1273 | spin_lock(&sbi->cp_lock); | |
1274 | __clear_ckpt_flags(F2FS_CKPT(sbi), f); | |
1275 | spin_unlock(&sbi->cp_lock); | |
1276 | } | |
1277 | ||
22ad0b6a JK |
1278 | static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) |
1279 | { | |
1280 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
1281 | ||
1282 | if (lock) | |
1283 | spin_lock(&sbi->cp_lock); | |
1284 | __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); | |
1285 | kfree(NM_I(sbi)->nat_bits); | |
1286 | NM_I(sbi)->nat_bits = NULL; | |
1287 | if (lock) | |
1288 | spin_unlock(&sbi->cp_lock); | |
1289 | } | |
1290 | ||
1291 | static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, | |
1292 | struct cp_control *cpc) | |
1293 | { | |
1294 | bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); | |
1295 | ||
c473f1a9 | 1296 | return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; |
22ad0b6a JK |
1297 | } |
1298 | ||
e479556b | 1299 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 1300 | { |
b873b798 | 1301 | down_read(&sbi->cp_rwsem); |
39936837 JK |
1302 | } |
1303 | ||
cc15620b JK |
1304 | static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) |
1305 | { | |
1306 | return down_read_trylock(&sbi->cp_rwsem); | |
1307 | } | |
1308 | ||
e479556b | 1309 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 1310 | { |
b873b798 | 1311 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
1312 | } |
1313 | ||
e479556b | 1314 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 1315 | { |
b873b798 | 1316 | down_write(&sbi->cp_rwsem); |
39936837 JK |
1317 | } |
1318 | ||
e479556b | 1319 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 1320 | { |
b873b798 | 1321 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
1322 | } |
1323 | ||
119ee914 JK |
1324 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
1325 | { | |
1326 | int reason = CP_SYNC; | |
1327 | ||
1328 | if (test_opt(sbi, FASTBOOT)) | |
1329 | reason = CP_FASTBOOT; | |
1330 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) | |
1331 | reason = CP_UMOUNT; | |
1332 | return reason; | |
1333 | } | |
1334 | ||
1335 | static inline bool __remain_node_summaries(int reason) | |
1336 | { | |
c473f1a9 | 1337 | return (reason & (CP_UMOUNT | CP_FASTBOOT)); |
119ee914 JK |
1338 | } |
1339 | ||
1340 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) | |
1341 | { | |
aaec2b1d CY |
1342 | return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || |
1343 | is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); | |
119ee914 JK |
1344 | } |
1345 | ||
39a53e0c JK |
1346 | /* |
1347 | * Check whether the given nid is within node id range. | |
1348 | */ | |
064e0823 | 1349 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 1350 | { |
d6b7d4b3 CY |
1351 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
1352 | return -EINVAL; | |
cfb271d4 | 1353 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
1354 | return -EINVAL; |
1355 | return 0; | |
39a53e0c JK |
1356 | } |
1357 | ||
1358 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
1359 | ||
1360 | /* | |
1361 | * Check whether the inode has blocks or not | |
1362 | */ | |
1363 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
1364 | { | |
0eb0adad CY |
1365 | block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; |
1366 | ||
1367 | return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > | |
1368 | (F2FS_DEFAULT_ALLOCATED_BLOCKS + xattr_block); | |
39a53e0c JK |
1369 | } |
1370 | ||
4bc8e9bc CY |
1371 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
1372 | { | |
1373 | return ofs == XATTR_NODE_OFFSET; | |
1374 | } | |
1375 | ||
0eb0adad | 1376 | static inline void f2fs_i_blocks_write(struct inode *, block_t, bool); |
39a53e0c | 1377 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
46008c6d | 1378 | struct inode *inode, blkcnt_t *count) |
39a53e0c | 1379 | { |
dd11a5df | 1380 | blkcnt_t diff; |
daeb433e | 1381 | block_t avail_user_block_count; |
39a53e0c | 1382 | |
cb78942b | 1383 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
55523519 CY |
1384 | if (time_to_inject(sbi, FAULT_BLOCK)) { |
1385 | f2fs_show_injection_info(FAULT_BLOCK); | |
cb78942b | 1386 | return false; |
55523519 | 1387 | } |
cb78942b | 1388 | #endif |
dd11a5df JK |
1389 | /* |
1390 | * let's increase this in prior to actual block count change in order | |
1391 | * for f2fs_sync_file to avoid data races when deciding checkpoint. | |
1392 | */ | |
1393 | percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); | |
1394 | ||
2555a2d5 JK |
1395 | spin_lock(&sbi->stat_lock); |
1396 | sbi->total_valid_block_count += (block_t)(*count); | |
daeb433e CY |
1397 | avail_user_block_count = sbi->user_block_count - sbi->reserved_blocks; |
1398 | if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { | |
1399 | diff = sbi->total_valid_block_count - avail_user_block_count; | |
dd11a5df | 1400 | *count -= diff; |
daeb433e | 1401 | sbi->total_valid_block_count = avail_user_block_count; |
46008c6d CY |
1402 | if (!*count) { |
1403 | spin_unlock(&sbi->stat_lock); | |
dd11a5df | 1404 | percpu_counter_sub(&sbi->alloc_valid_block_count, diff); |
46008c6d CY |
1405 | return false; |
1406 | } | |
39a53e0c | 1407 | } |
39a53e0c | 1408 | spin_unlock(&sbi->stat_lock); |
41382ec4 | 1409 | |
2555a2d5 | 1410 | f2fs_i_blocks_write(inode, *count, true); |
39a53e0c JK |
1411 | return true; |
1412 | } | |
1413 | ||
da19b0dc | 1414 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c | 1415 | struct inode *inode, |
0eb0adad | 1416 | block_t count) |
39a53e0c | 1417 | { |
0eb0adad CY |
1418 | blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; |
1419 | ||
39a53e0c | 1420 | spin_lock(&sbi->stat_lock); |
9850cf4a | 1421 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
0eb0adad | 1422 | f2fs_bug_on(sbi, inode->i_blocks < sectors); |
39a53e0c JK |
1423 | sbi->total_valid_block_count -= (block_t)count; |
1424 | spin_unlock(&sbi->stat_lock); | |
2555a2d5 | 1425 | f2fs_i_blocks_write(inode, count, false); |
39a53e0c JK |
1426 | } |
1427 | ||
1428 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1429 | { | |
35782b23 | 1430 | atomic_inc(&sbi->nr_pages[count_type]); |
7c4abcbe | 1431 | |
36951b38 CY |
1432 | if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES || |
1433 | count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA) | |
7c4abcbe CY |
1434 | return; |
1435 | ||
caf0047e | 1436 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
39a53e0c JK |
1437 | } |
1438 | ||
a7ffdbe2 | 1439 | static inline void inode_inc_dirty_pages(struct inode *inode) |
39a53e0c | 1440 | { |
204706c7 | 1441 | atomic_inc(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1442 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1443 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1444 | } |
1445 | ||
1446 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
1447 | { | |
35782b23 | 1448 | atomic_dec(&sbi->nr_pages[count_type]); |
39a53e0c JK |
1449 | } |
1450 | ||
a7ffdbe2 | 1451 | static inline void inode_dec_dirty_pages(struct inode *inode) |
39a53e0c | 1452 | { |
5ac9f36f CY |
1453 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
1454 | !S_ISLNK(inode->i_mode)) | |
1fe54f9d JK |
1455 | return; |
1456 | ||
204706c7 | 1457 | atomic_dec(&F2FS_I(inode)->dirty_pages); |
c227f912 CY |
1458 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
1459 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); | |
39a53e0c JK |
1460 | } |
1461 | ||
523be8a6 | 1462 | static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) |
39a53e0c | 1463 | { |
35782b23 | 1464 | return atomic_read(&sbi->nr_pages[count_type]); |
39a53e0c JK |
1465 | } |
1466 | ||
204706c7 | 1467 | static inline int get_dirty_pages(struct inode *inode) |
f8b2c1f9 | 1468 | { |
204706c7 | 1469 | return atomic_read(&F2FS_I(inode)->dirty_pages); |
f8b2c1f9 JK |
1470 | } |
1471 | ||
5ac206cf NJ |
1472 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
1473 | { | |
3519e3f9 | 1474 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
523be8a6 JK |
1475 | unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> |
1476 | sbi->log_blocks_per_seg; | |
1477 | ||
1478 | return segs / sbi->segs_per_sec; | |
5ac206cf NJ |
1479 | } |
1480 | ||
39a53e0c JK |
1481 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
1482 | { | |
8b8343fa | 1483 | return sbi->total_valid_block_count; |
39a53e0c JK |
1484 | } |
1485 | ||
f83a2584 YH |
1486 | static inline block_t discard_blocks(struct f2fs_sb_info *sbi) |
1487 | { | |
1488 | return sbi->discard_blks; | |
1489 | } | |
1490 | ||
39a53e0c JK |
1491 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) |
1492 | { | |
1493 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1494 | ||
1495 | /* return NAT or SIT bitmap */ | |
1496 | if (flag == NAT_BITMAP) | |
1497 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
1498 | else if (flag == SIT_BITMAP) | |
1499 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
1500 | ||
1501 | return 0; | |
1502 | } | |
1503 | ||
55141486 WL |
1504 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
1505 | { | |
1506 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); | |
1507 | } | |
1508 | ||
39a53e0c JK |
1509 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
1510 | { | |
1511 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
1512 | int offset; |
1513 | ||
55141486 | 1514 | if (__cp_payload(sbi) > 0) { |
1dbe4152 CL |
1515 | if (flag == NAT_BITMAP) |
1516 | return &ckpt->sit_nat_version_bitmap; | |
1517 | else | |
65b85ccc | 1518 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
1dbe4152 CL |
1519 | } else { |
1520 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 1521 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
1522 | return &ckpt->sit_nat_version_bitmap + offset; |
1523 | } | |
39a53e0c JK |
1524 | } |
1525 | ||
1526 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
1527 | { | |
8508e44a | 1528 | block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c | 1529 | |
8508e44a | 1530 | if (sbi->cur_cp_pack == 2) |
39a53e0c | 1531 | start_addr += sbi->blocks_per_seg; |
8508e44a JK |
1532 | return start_addr; |
1533 | } | |
39a53e0c | 1534 | |
8508e44a JK |
1535 | static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) |
1536 | { | |
1537 | block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); | |
39a53e0c | 1538 | |
8508e44a JK |
1539 | if (sbi->cur_cp_pack == 1) |
1540 | start_addr += sbi->blocks_per_seg; | |
39a53e0c JK |
1541 | return start_addr; |
1542 | } | |
1543 | ||
8508e44a JK |
1544 | static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) |
1545 | { | |
1546 | sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; | |
1547 | } | |
1548 | ||
39a53e0c JK |
1549 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) |
1550 | { | |
1551 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
1552 | } | |
1553 | ||
1554 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1555 | struct inode *inode) |
39a53e0c JK |
1556 | { |
1557 | block_t valid_block_count; | |
1558 | unsigned int valid_node_count; | |
1559 | ||
1560 | spin_lock(&sbi->stat_lock); | |
1561 | ||
ef86d709 | 1562 | valid_block_count = sbi->total_valid_block_count + 1; |
daeb433e CY |
1563 | if (unlikely(valid_block_count + sbi->reserved_blocks > |
1564 | sbi->user_block_count)) { | |
39a53e0c JK |
1565 | spin_unlock(&sbi->stat_lock); |
1566 | return false; | |
1567 | } | |
1568 | ||
ef86d709 | 1569 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 1570 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
1571 | spin_unlock(&sbi->stat_lock); |
1572 | return false; | |
1573 | } | |
1574 | ||
1575 | if (inode) | |
8edd03c8 | 1576 | f2fs_i_blocks_write(inode, 1, true); |
ef86d709 | 1577 | |
ef86d709 GZ |
1578 | sbi->total_valid_node_count++; |
1579 | sbi->total_valid_block_count++; | |
39a53e0c JK |
1580 | spin_unlock(&sbi->stat_lock); |
1581 | ||
41382ec4 | 1582 | percpu_counter_inc(&sbi->alloc_valid_block_count); |
39a53e0c JK |
1583 | return true; |
1584 | } | |
1585 | ||
1586 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 1587 | struct inode *inode) |
39a53e0c JK |
1588 | { |
1589 | spin_lock(&sbi->stat_lock); | |
1590 | ||
9850cf4a JK |
1591 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
1592 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); | |
1593 | f2fs_bug_on(sbi, !inode->i_blocks); | |
39a53e0c | 1594 | |
8edd03c8 | 1595 | f2fs_i_blocks_write(inode, 1, false); |
ef86d709 GZ |
1596 | sbi->total_valid_node_count--; |
1597 | sbi->total_valid_block_count--; | |
39a53e0c JK |
1598 | |
1599 | spin_unlock(&sbi->stat_lock); | |
1600 | } | |
1601 | ||
1602 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
1603 | { | |
8b8343fa | 1604 | return sbi->total_valid_node_count; |
39a53e0c JK |
1605 | } |
1606 | ||
1607 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
1608 | { | |
513c5f37 | 1609 | percpu_counter_inc(&sbi->total_valid_inode_count); |
39a53e0c JK |
1610 | } |
1611 | ||
0e80220a | 1612 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c | 1613 | { |
513c5f37 | 1614 | percpu_counter_dec(&sbi->total_valid_inode_count); |
39a53e0c JK |
1615 | } |
1616 | ||
513c5f37 | 1617 | static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c | 1618 | { |
513c5f37 | 1619 | return percpu_counter_sum_positive(&sbi->total_valid_inode_count); |
39a53e0c JK |
1620 | } |
1621 | ||
a56c7c6f JK |
1622 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
1623 | pgoff_t index, bool for_write) | |
1624 | { | |
c41f3cc3 JK |
1625 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1626 | struct page *page = find_lock_page(mapping, index); | |
cac5a3d8 | 1627 | |
c41f3cc3 JK |
1628 | if (page) |
1629 | return page; | |
1630 | ||
55523519 CY |
1631 | if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { |
1632 | f2fs_show_injection_info(FAULT_PAGE_ALLOC); | |
c41f3cc3 | 1633 | return NULL; |
55523519 | 1634 | } |
c41f3cc3 | 1635 | #endif |
a56c7c6f JK |
1636 | if (!for_write) |
1637 | return grab_cache_page(mapping, index); | |
1638 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); | |
1639 | } | |
1640 | ||
6e2c64ad JK |
1641 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
1642 | { | |
1643 | char *src_kaddr = kmap(src); | |
1644 | char *dst_kaddr = kmap(dst); | |
1645 | ||
1646 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); | |
1647 | kunmap(dst); | |
1648 | kunmap(src); | |
1649 | } | |
1650 | ||
39a53e0c JK |
1651 | static inline void f2fs_put_page(struct page *page, int unlock) |
1652 | { | |
031fa8cc | 1653 | if (!page) |
39a53e0c JK |
1654 | return; |
1655 | ||
1656 | if (unlock) { | |
9850cf4a | 1657 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
39a53e0c JK |
1658 | unlock_page(page); |
1659 | } | |
09cbfeaf | 1660 | put_page(page); |
39a53e0c JK |
1661 | } |
1662 | ||
1663 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
1664 | { | |
1665 | if (dn->node_page) | |
1666 | f2fs_put_page(dn->node_page, 1); | |
1667 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
1668 | f2fs_put_page(dn->inode_page, 0); | |
1669 | dn->node_page = NULL; | |
1670 | dn->inode_page = NULL; | |
1671 | } | |
1672 | ||
1673 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 1674 | size_t size) |
39a53e0c | 1675 | { |
e8512d2e | 1676 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
1677 | } |
1678 | ||
7bd59381 GZ |
1679 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
1680 | gfp_t flags) | |
1681 | { | |
1682 | void *entry; | |
7bd59381 | 1683 | |
80c54505 JK |
1684 | entry = kmem_cache_alloc(cachep, flags); |
1685 | if (!entry) | |
1686 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); | |
7bd59381 GZ |
1687 | return entry; |
1688 | } | |
1689 | ||
740432f8 JK |
1690 | static inline struct bio *f2fs_bio_alloc(int npages) |
1691 | { | |
1692 | struct bio *bio; | |
1693 | ||
1694 | /* No failure on bio allocation */ | |
740432f8 | 1695 | bio = bio_alloc(GFP_NOIO, npages); |
80c54505 JK |
1696 | if (!bio) |
1697 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); | |
740432f8 JK |
1698 | return bio; |
1699 | } | |
1700 | ||
9be32d72 JK |
1701 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
1702 | unsigned long index, void *item) | |
1703 | { | |
1704 | while (radix_tree_insert(root, index, item)) | |
1705 | cond_resched(); | |
1706 | } | |
1707 | ||
39a53e0c JK |
1708 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
1709 | ||
1710 | static inline bool IS_INODE(struct page *page) | |
1711 | { | |
45590710 | 1712 | struct f2fs_node *p = F2FS_NODE(page); |
cac5a3d8 | 1713 | |
39a53e0c JK |
1714 | return RAW_IS_INODE(p); |
1715 | } | |
1716 | ||
1717 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
1718 | { | |
1719 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
1720 | } | |
1721 | ||
1722 | static inline block_t datablock_addr(struct page *node_page, | |
1723 | unsigned int offset) | |
1724 | { | |
1725 | struct f2fs_node *raw_node; | |
1726 | __le32 *addr_array; | |
cac5a3d8 | 1727 | |
45590710 | 1728 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
1729 | addr_array = blkaddr_in_node(raw_node); |
1730 | return le32_to_cpu(addr_array[offset]); | |
1731 | } | |
1732 | ||
1733 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
1734 | { | |
1735 | int mask; | |
1736 | ||
1737 | addr += (nr >> 3); | |
1738 | mask = 1 << (7 - (nr & 0x07)); | |
1739 | return mask & *addr; | |
1740 | } | |
1741 | ||
a66cdd98 JK |
1742 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
1743 | { | |
1744 | int mask; | |
1745 | ||
1746 | addr += (nr >> 3); | |
1747 | mask = 1 << (7 - (nr & 0x07)); | |
1748 | *addr |= mask; | |
1749 | } | |
1750 | ||
1751 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) | |
1752 | { | |
1753 | int mask; | |
1754 | ||
1755 | addr += (nr >> 3); | |
1756 | mask = 1 << (7 - (nr & 0x07)); | |
1757 | *addr &= ~mask; | |
1758 | } | |
1759 | ||
52aca074 | 1760 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1761 | { |
1762 | int mask; | |
1763 | int ret; | |
1764 | ||
1765 | addr += (nr >> 3); | |
1766 | mask = 1 << (7 - (nr & 0x07)); | |
1767 | ret = mask & *addr; | |
1768 | *addr |= mask; | |
1769 | return ret; | |
1770 | } | |
1771 | ||
52aca074 | 1772 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
39a53e0c JK |
1773 | { |
1774 | int mask; | |
1775 | int ret; | |
1776 | ||
1777 | addr += (nr >> 3); | |
1778 | mask = 1 << (7 - (nr & 0x07)); | |
1779 | ret = mask & *addr; | |
1780 | *addr &= ~mask; | |
1781 | return ret; | |
1782 | } | |
1783 | ||
c6ac4c0e GZ |
1784 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
1785 | { | |
1786 | int mask; | |
1787 | ||
1788 | addr += (nr >> 3); | |
1789 | mask = 1 << (7 - (nr & 0x07)); | |
1790 | *addr ^= mask; | |
1791 | } | |
1792 | ||
39a53e0c JK |
1793 | /* used for f2fs_inode_info->flags */ |
1794 | enum { | |
1795 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 1796 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
26de9b11 | 1797 | FI_AUTO_RECOVER, /* indicate inode is recoverable */ |
ed57c27f | 1798 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
1799 | FI_INC_LINK, /* need to increment i_nlink */ |
1800 | FI_ACL_MODE, /* indicate acl mode */ | |
1801 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
c9b63bd0 | 1802 | FI_FREE_NID, /* free allocated nide */ |
c11abd1a | 1803 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 1804 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 1805 | FI_INLINE_DATA, /* used for inline data*/ |
34d67deb | 1806 | FI_INLINE_DENTRY, /* used for inline dentry */ |
fff04f90 JK |
1807 | FI_APPEND_WRITE, /* inode has appended data */ |
1808 | FI_UPDATE_WRITE, /* inode has in-place-update data */ | |
88b88a66 JK |
1809 | FI_NEED_IPU, /* used for ipu per file */ |
1810 | FI_ATOMIC_FILE, /* indicate atomic file */ | |
5fe45743 | 1811 | FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ |
02a1335f | 1812 | FI_VOLATILE_FILE, /* indicate volatile file */ |
3c6c2beb | 1813 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
1e84371f | 1814 | FI_DROP_CACHE, /* drop dirty page cache */ |
b3d208f9 | 1815 | FI_DATA_EXIST, /* indicate data exists */ |
510022a8 | 1816 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
d323d005 | 1817 | FI_DO_DEFRAG, /* indicate defragment is running */ |
c227f912 | 1818 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
dc91de78 | 1819 | FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ |
ef095d19 | 1820 | FI_HOT_DATA, /* indicate file is hot */ |
39a53e0c JK |
1821 | }; |
1822 | ||
205b9822 JK |
1823 | static inline void __mark_inode_dirty_flag(struct inode *inode, |
1824 | int flag, bool set) | |
1825 | { | |
1826 | switch (flag) { | |
1827 | case FI_INLINE_XATTR: | |
1828 | case FI_INLINE_DATA: | |
1829 | case FI_INLINE_DENTRY: | |
1830 | if (set) | |
1831 | return; | |
1832 | case FI_DATA_EXIST: | |
1833 | case FI_INLINE_DOTS: | |
7c45729a | 1834 | f2fs_mark_inode_dirty_sync(inode, true); |
205b9822 JK |
1835 | } |
1836 | } | |
1837 | ||
91942321 | 1838 | static inline void set_inode_flag(struct inode *inode, int flag) |
39a53e0c | 1839 | { |
91942321 JK |
1840 | if (!test_bit(flag, &F2FS_I(inode)->flags)) |
1841 | set_bit(flag, &F2FS_I(inode)->flags); | |
205b9822 | 1842 | __mark_inode_dirty_flag(inode, flag, true); |
39a53e0c JK |
1843 | } |
1844 | ||
91942321 | 1845 | static inline int is_inode_flag_set(struct inode *inode, int flag) |
39a53e0c | 1846 | { |
91942321 | 1847 | return test_bit(flag, &F2FS_I(inode)->flags); |
39a53e0c JK |
1848 | } |
1849 | ||
91942321 | 1850 | static inline void clear_inode_flag(struct inode *inode, int flag) |
39a53e0c | 1851 | { |
91942321 JK |
1852 | if (test_bit(flag, &F2FS_I(inode)->flags)) |
1853 | clear_bit(flag, &F2FS_I(inode)->flags); | |
205b9822 | 1854 | __mark_inode_dirty_flag(inode, flag, false); |
39a53e0c JK |
1855 | } |
1856 | ||
91942321 | 1857 | static inline void set_acl_inode(struct inode *inode, umode_t mode) |
39a53e0c | 1858 | { |
91942321 JK |
1859 | F2FS_I(inode)->i_acl_mode = mode; |
1860 | set_inode_flag(inode, FI_ACL_MODE); | |
7c45729a | 1861 | f2fs_mark_inode_dirty_sync(inode, false); |
39a53e0c JK |
1862 | } |
1863 | ||
a1961246 | 1864 | static inline void f2fs_i_links_write(struct inode *inode, bool inc) |
39a53e0c | 1865 | { |
a1961246 JK |
1866 | if (inc) |
1867 | inc_nlink(inode); | |
1868 | else | |
1869 | drop_nlink(inode); | |
7c45729a | 1870 | f2fs_mark_inode_dirty_sync(inode, true); |
a1961246 JK |
1871 | } |
1872 | ||
8edd03c8 | 1873 | static inline void f2fs_i_blocks_write(struct inode *inode, |
0eb0adad | 1874 | block_t diff, bool add) |
8edd03c8 | 1875 | { |
26de9b11 JK |
1876 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
1877 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
0eb0adad | 1878 | blkcnt_t sectors = diff << F2FS_LOG_SECTORS_PER_BLOCK; |
26de9b11 | 1879 | |
0eb0adad CY |
1880 | inode->i_blocks = add ? inode->i_blocks + sectors : |
1881 | inode->i_blocks - sectors; | |
7c45729a | 1882 | f2fs_mark_inode_dirty_sync(inode, true); |
26de9b11 JK |
1883 | if (clean || recover) |
1884 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
8edd03c8 JK |
1885 | } |
1886 | ||
fc9581c8 JK |
1887 | static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) |
1888 | { | |
26de9b11 JK |
1889 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
1890 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); | |
1891 | ||
fc9581c8 JK |
1892 | if (i_size_read(inode) == i_size) |
1893 | return; | |
1894 | ||
1895 | i_size_write(inode, i_size); | |
7c45729a | 1896 | f2fs_mark_inode_dirty_sync(inode, true); |
26de9b11 JK |
1897 | if (clean || recover) |
1898 | set_inode_flag(inode, FI_AUTO_RECOVER); | |
39a53e0c JK |
1899 | } |
1900 | ||
205b9822 | 1901 | static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) |
39a53e0c | 1902 | { |
205b9822 | 1903 | F2FS_I(inode)->i_current_depth = depth; |
7c45729a | 1904 | f2fs_mark_inode_dirty_sync(inode, true); |
39a53e0c JK |
1905 | } |
1906 | ||
205b9822 | 1907 | static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) |
444c580f | 1908 | { |
205b9822 | 1909 | F2FS_I(inode)->i_xattr_nid = xnid; |
7c45729a | 1910 | f2fs_mark_inode_dirty_sync(inode, true); |
205b9822 JK |
1911 | } |
1912 | ||
1913 | static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) | |
1914 | { | |
1915 | F2FS_I(inode)->i_pino = pino; | |
7c45729a | 1916 | f2fs_mark_inode_dirty_sync(inode, true); |
205b9822 JK |
1917 | } |
1918 | ||
91942321 | 1919 | static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) |
444c580f | 1920 | { |
205b9822 JK |
1921 | struct f2fs_inode_info *fi = F2FS_I(inode); |
1922 | ||
444c580f | 1923 | if (ri->i_inline & F2FS_INLINE_XATTR) |
205b9822 | 1924 | set_bit(FI_INLINE_XATTR, &fi->flags); |
1001b347 | 1925 | if (ri->i_inline & F2FS_INLINE_DATA) |
205b9822 | 1926 | set_bit(FI_INLINE_DATA, &fi->flags); |
34d67deb | 1927 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
205b9822 | 1928 | set_bit(FI_INLINE_DENTRY, &fi->flags); |
b3d208f9 | 1929 | if (ri->i_inline & F2FS_DATA_EXIST) |
205b9822 | 1930 | set_bit(FI_DATA_EXIST, &fi->flags); |
510022a8 | 1931 | if (ri->i_inline & F2FS_INLINE_DOTS) |
205b9822 | 1932 | set_bit(FI_INLINE_DOTS, &fi->flags); |
444c580f JK |
1933 | } |
1934 | ||
91942321 | 1935 | static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) |
444c580f JK |
1936 | { |
1937 | ri->i_inline = 0; | |
1938 | ||
91942321 | 1939 | if (is_inode_flag_set(inode, FI_INLINE_XATTR)) |
444c580f | 1940 | ri->i_inline |= F2FS_INLINE_XATTR; |
91942321 | 1941 | if (is_inode_flag_set(inode, FI_INLINE_DATA)) |
1001b347 | 1942 | ri->i_inline |= F2FS_INLINE_DATA; |
91942321 | 1943 | if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) |
34d67deb | 1944 | ri->i_inline |= F2FS_INLINE_DENTRY; |
91942321 | 1945 | if (is_inode_flag_set(inode, FI_DATA_EXIST)) |
b3d208f9 | 1946 | ri->i_inline |= F2FS_DATA_EXIST; |
91942321 | 1947 | if (is_inode_flag_set(inode, FI_INLINE_DOTS)) |
510022a8 | 1948 | ri->i_inline |= F2FS_INLINE_DOTS; |
444c580f JK |
1949 | } |
1950 | ||
987c7c31 CY |
1951 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1952 | { | |
91942321 | 1953 | return is_inode_flag_set(inode, FI_INLINE_XATTR); |
987c7c31 CY |
1954 | } |
1955 | ||
81ca7350 | 1956 | static inline unsigned int addrs_per_inode(struct inode *inode) |
de93653f | 1957 | { |
81ca7350 | 1958 | if (f2fs_has_inline_xattr(inode)) |
de93653f JK |
1959 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1960 | return DEF_ADDRS_PER_INODE; | |
1961 | } | |
1962 | ||
65985d93 JK |
1963 | static inline void *inline_xattr_addr(struct page *page) |
1964 | { | |
695fd1ed | 1965 | struct f2fs_inode *ri = F2FS_INODE(page); |
cac5a3d8 | 1966 | |
65985d93 JK |
1967 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1968 | F2FS_INLINE_XATTR_ADDRS]); | |
1969 | } | |
1970 | ||
1971 | static inline int inline_xattr_size(struct inode *inode) | |
1972 | { | |
987c7c31 | 1973 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1974 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1975 | else | |
1976 | return 0; | |
1977 | } | |
1978 | ||
0dbdc2ae JK |
1979 | static inline int f2fs_has_inline_data(struct inode *inode) |
1980 | { | |
91942321 | 1981 | return is_inode_flag_set(inode, FI_INLINE_DATA); |
0dbdc2ae JK |
1982 | } |
1983 | ||
b3d208f9 JK |
1984 | static inline int f2fs_exist_data(struct inode *inode) |
1985 | { | |
91942321 | 1986 | return is_inode_flag_set(inode, FI_DATA_EXIST); |
b3d208f9 JK |
1987 | } |
1988 | ||
510022a8 JK |
1989 | static inline int f2fs_has_inline_dots(struct inode *inode) |
1990 | { | |
91942321 | 1991 | return is_inode_flag_set(inode, FI_INLINE_DOTS); |
510022a8 JK |
1992 | } |
1993 | ||
88b88a66 JK |
1994 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
1995 | { | |
91942321 | 1996 | return is_inode_flag_set(inode, FI_ATOMIC_FILE); |
88b88a66 JK |
1997 | } |
1998 | ||
5fe45743 CY |
1999 | static inline bool f2fs_is_commit_atomic_write(struct inode *inode) |
2000 | { | |
2001 | return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); | |
2002 | } | |
2003 | ||
02a1335f JK |
2004 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
2005 | { | |
91942321 | 2006 | return is_inode_flag_set(inode, FI_VOLATILE_FILE); |
02a1335f JK |
2007 | } |
2008 | ||
3c6c2beb JK |
2009 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
2010 | { | |
91942321 | 2011 | return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); |
3c6c2beb JK |
2012 | } |
2013 | ||
1e84371f JK |
2014 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
2015 | { | |
91942321 | 2016 | return is_inode_flag_set(inode, FI_DROP_CACHE); |
1e84371f JK |
2017 | } |
2018 | ||
1001b347 HL |
2019 | static inline void *inline_data_addr(struct page *page) |
2020 | { | |
695fd1ed | 2021 | struct f2fs_inode *ri = F2FS_INODE(page); |
cac5a3d8 | 2022 | |
1001b347 HL |
2023 | return (void *)&(ri->i_addr[1]); |
2024 | } | |
2025 | ||
34d67deb CY |
2026 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
2027 | { | |
91942321 | 2028 | return is_inode_flag_set(inode, FI_INLINE_DENTRY); |
34d67deb CY |
2029 | } |
2030 | ||
9486ba44 JK |
2031 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
2032 | { | |
2033 | if (!f2fs_has_inline_dentry(dir)) | |
2034 | kunmap(page); | |
2035 | } | |
2036 | ||
b5492af7 JK |
2037 | static inline int is_file(struct inode *inode, int type) |
2038 | { | |
2039 | return F2FS_I(inode)->i_advise & type; | |
2040 | } | |
2041 | ||
2042 | static inline void set_file(struct inode *inode, int type) | |
2043 | { | |
2044 | F2FS_I(inode)->i_advise |= type; | |
7c45729a | 2045 | f2fs_mark_inode_dirty_sync(inode, true); |
b5492af7 JK |
2046 | } |
2047 | ||
2048 | static inline void clear_file(struct inode *inode, int type) | |
2049 | { | |
2050 | F2FS_I(inode)->i_advise &= ~type; | |
7c45729a | 2051 | f2fs_mark_inode_dirty_sync(inode, true); |
b5492af7 JK |
2052 | } |
2053 | ||
26787236 JK |
2054 | static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) |
2055 | { | |
2056 | if (dsync) { | |
2057 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2058 | bool ret; | |
2059 | ||
2060 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
2061 | ret = list_empty(&F2FS_I(inode)->gdirty_list); | |
2062 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
2063 | return ret; | |
2064 | } | |
2065 | if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || | |
2066 | file_keep_isize(inode) || | |
2067 | i_size_read(inode) & PAGE_MASK) | |
2068 | return false; | |
2069 | return F2FS_I(inode)->last_disk_size == i_size_read(inode); | |
b5492af7 JK |
2070 | } |
2071 | ||
77888c1e JK |
2072 | static inline int f2fs_readonly(struct super_block *sb) |
2073 | { | |
2074 | return sb->s_flags & MS_RDONLY; | |
2075 | } | |
2076 | ||
1e968fdf JK |
2077 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
2078 | { | |
aaec2b1d | 2079 | return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); |
1e968fdf JK |
2080 | } |
2081 | ||
eaa693f4 JK |
2082 | static inline bool is_dot_dotdot(const struct qstr *str) |
2083 | { | |
2084 | if (str->len == 1 && str->name[0] == '.') | |
2085 | return true; | |
2086 | ||
2087 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') | |
2088 | return true; | |
2089 | ||
2090 | return false; | |
2091 | } | |
2092 | ||
3e72f721 JK |
2093 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
2094 | { | |
3e72f721 | 2095 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
91942321 | 2096 | is_inode_flag_set(inode, FI_NO_EXTENT)) |
3e72f721 JK |
2097 | return false; |
2098 | ||
886f56f9 | 2099 | return S_ISREG(inode->i_mode); |
3e72f721 JK |
2100 | } |
2101 | ||
1ecc0c5c CY |
2102 | static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, |
2103 | size_t size, gfp_t flags) | |
0414b004 | 2104 | { |
2c63fead | 2105 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
55523519 CY |
2106 | if (time_to_inject(sbi, FAULT_KMALLOC)) { |
2107 | f2fs_show_injection_info(FAULT_KMALLOC); | |
2c63fead | 2108 | return NULL; |
55523519 | 2109 | } |
2c63fead | 2110 | #endif |
0414b004 JK |
2111 | return kmalloc(size, flags); |
2112 | } | |
2113 | ||
39307a8e JK |
2114 | static inline void *f2fs_kvmalloc(size_t size, gfp_t flags) |
2115 | { | |
2116 | void *ret; | |
2117 | ||
2118 | ret = kmalloc(size, flags | __GFP_NOWARN); | |
2119 | if (!ret) | |
2120 | ret = __vmalloc(size, flags, PAGE_KERNEL); | |
2121 | return ret; | |
2122 | } | |
2123 | ||
2124 | static inline void *f2fs_kvzalloc(size_t size, gfp_t flags) | |
2125 | { | |
2126 | void *ret; | |
2127 | ||
2128 | ret = kzalloc(size, flags | __GFP_NOWARN); | |
2129 | if (!ret) | |
2130 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); | |
2131 | return ret; | |
2132 | } | |
2133 | ||
a6dda0e6 | 2134 | #define get_inode_mode(i) \ |
91942321 | 2135 | ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ |
a6dda0e6 CH |
2136 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) |
2137 | ||
39a53e0c JK |
2138 | /* |
2139 | * file.c | |
2140 | */ | |
cac5a3d8 DS |
2141 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); |
2142 | void truncate_data_blocks(struct dnode_of_data *dn); | |
2143 | int truncate_blocks(struct inode *inode, u64 from, bool lock); | |
2144 | int f2fs_truncate(struct inode *inode); | |
a528d35e DH |
2145 | int f2fs_getattr(const struct path *path, struct kstat *stat, |
2146 | u32 request_mask, unsigned int flags); | |
cac5a3d8 DS |
2147 | int f2fs_setattr(struct dentry *dentry, struct iattr *attr); |
2148 | int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); | |
2149 | int truncate_data_blocks_range(struct dnode_of_data *dn, int count); | |
2150 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); | |
2151 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); | |
39a53e0c JK |
2152 | |
2153 | /* | |
2154 | * inode.c | |
2155 | */ | |
cac5a3d8 DS |
2156 | void f2fs_set_inode_flags(struct inode *inode); |
2157 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); | |
2158 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); | |
2159 | int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); | |
2160 | int update_inode(struct inode *inode, struct page *node_page); | |
2161 | int update_inode_page(struct inode *inode); | |
2162 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); | |
2163 | void f2fs_evict_inode(struct inode *inode); | |
2164 | void handle_failed_inode(struct inode *inode); | |
39a53e0c JK |
2165 | |
2166 | /* | |
2167 | * namei.c | |
2168 | */ | |
2169 | struct dentry *f2fs_get_parent(struct dentry *child); | |
2170 | ||
2171 | /* | |
2172 | * dir.c | |
2173 | */ | |
cac5a3d8 DS |
2174 | void set_de_type(struct f2fs_dir_entry *de, umode_t mode); |
2175 | unsigned char get_de_type(struct f2fs_dir_entry *de); | |
2176 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname, | |
2177 | f2fs_hash_t namehash, int *max_slots, | |
2178 | struct f2fs_dentry_ptr *d); | |
2179 | int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, | |
2180 | unsigned int start_pos, struct fscrypt_str *fstr); | |
2181 | void do_make_empty_dir(struct inode *inode, struct inode *parent, | |
2182 | struct f2fs_dentry_ptr *d); | |
2183 | struct page *init_inode_metadata(struct inode *inode, struct inode *dir, | |
2184 | const struct qstr *new_name, | |
2185 | const struct qstr *orig_name, struct page *dpage); | |
2186 | void update_parent_metadata(struct inode *dir, struct inode *inode, | |
2187 | unsigned int current_depth); | |
2188 | int room_for_filename(const void *bitmap, int slots, int max_slots); | |
2189 | void f2fs_drop_nlink(struct inode *dir, struct inode *inode); | |
2190 | struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, | |
2191 | struct fscrypt_name *fname, struct page **res_page); | |
2192 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, | |
2193 | const struct qstr *child, struct page **res_page); | |
2194 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); | |
2195 | ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, | |
2196 | struct page **page); | |
2197 | void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, | |
2198 | struct page *page, struct inode *inode); | |
cac5a3d8 DS |
2199 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, |
2200 | const struct qstr *name, f2fs_hash_t name_hash, | |
2201 | unsigned int bit_pos); | |
2202 | int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, | |
2203 | const struct qstr *orig_name, | |
2204 | struct inode *inode, nid_t ino, umode_t mode); | |
2205 | int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname, | |
2206 | struct inode *inode, nid_t ino, umode_t mode); | |
2207 | int __f2fs_add_link(struct inode *dir, const struct qstr *name, | |
2208 | struct inode *inode, nid_t ino, umode_t mode); | |
2209 | void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, | |
2210 | struct inode *dir, struct inode *inode); | |
2211 | int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); | |
2212 | bool f2fs_empty_dir(struct inode *dir); | |
39a53e0c | 2213 | |
b7f7a5e0 AV |
2214 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
2215 | { | |
2b0143b5 | 2216 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
510022a8 | 2217 | inode, inode->i_ino, inode->i_mode); |
b7f7a5e0 AV |
2218 | } |
2219 | ||
39a53e0c JK |
2220 | /* |
2221 | * super.c | |
2222 | */ | |
cac5a3d8 DS |
2223 | int f2fs_inode_dirtied(struct inode *inode, bool sync); |
2224 | void f2fs_inode_synced(struct inode *inode); | |
2225 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); | |
2226 | int f2fs_sync_fs(struct super_block *sb, int sync); | |
a07ef784 | 2227 | extern __printf(3, 4) |
cac5a3d8 | 2228 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); |
984ec63c | 2229 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
39a53e0c JK |
2230 | |
2231 | /* | |
2232 | * hash.c | |
2233 | */ | |
6332cd32 JK |
2234 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info, |
2235 | struct fscrypt_name *fname); | |
39a53e0c JK |
2236 | |
2237 | /* | |
2238 | * node.c | |
2239 | */ | |
2240 | struct dnode_of_data; | |
2241 | struct node_info; | |
2242 | ||
cac5a3d8 DS |
2243 | bool available_free_memory(struct f2fs_sb_info *sbi, int type); |
2244 | int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); | |
2245 | bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); | |
2246 | bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); | |
2247 | void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni); | |
2248 | pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); | |
2249 | int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); | |
2250 | int truncate_inode_blocks(struct inode *inode, pgoff_t from); | |
2251 | int truncate_xattr_node(struct inode *inode, struct page *page); | |
2252 | int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino); | |
2253 | int remove_inode_page(struct inode *inode); | |
2254 | struct page *new_inode_page(struct inode *inode); | |
2255 | struct page *new_node_page(struct dnode_of_data *dn, | |
2256 | unsigned int ofs, struct page *ipage); | |
2257 | void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); | |
2258 | struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); | |
2259 | struct page *get_node_page_ra(struct page *parent, int start); | |
2260 | void move_node_page(struct page *node_page, int gc_type); | |
2261 | int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, | |
2262 | struct writeback_control *wbc, bool atomic); | |
2263 | int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc); | |
22ad0b6a | 2264 | void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); |
cac5a3d8 DS |
2265 | bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); |
2266 | void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); | |
2267 | void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); | |
2268 | int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); | |
2269 | void recover_inline_xattr(struct inode *inode, struct page *page); | |
d260081c | 2270 | int recover_xattr_data(struct inode *inode, struct page *page, |
cac5a3d8 DS |
2271 | block_t blkaddr); |
2272 | int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); | |
2273 | int restore_node_summary(struct f2fs_sb_info *sbi, | |
2274 | unsigned int segno, struct f2fs_summary_block *sum); | |
22ad0b6a | 2275 | void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
cac5a3d8 DS |
2276 | int build_node_manager(struct f2fs_sb_info *sbi); |
2277 | void destroy_node_manager(struct f2fs_sb_info *sbi); | |
6e6093a8 | 2278 | int __init create_node_manager_caches(void); |
39a53e0c JK |
2279 | void destroy_node_manager_caches(void); |
2280 | ||
2281 | /* | |
2282 | * segment.c | |
2283 | */ | |
cac5a3d8 DS |
2284 | void register_inmem_page(struct inode *inode, struct page *page); |
2285 | void drop_inmem_pages(struct inode *inode); | |
8c242db9 | 2286 | void drop_inmem_page(struct inode *inode, struct page *page); |
cac5a3d8 DS |
2287 | int commit_inmem_pages(struct inode *inode); |
2288 | void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); | |
2289 | void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi); | |
2290 | int f2fs_issue_flush(struct f2fs_sb_info *sbi); | |
2291 | int create_flush_cmd_control(struct f2fs_sb_info *sbi); | |
2292 | void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); | |
2293 | void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); | |
2294 | bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); | |
2295 | void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new); | |
cce13252 | 2296 | void stop_discard_thread(struct f2fs_sb_info *sbi); |
d431413f | 2297 | void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi); |
cac5a3d8 DS |
2298 | void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
2299 | void release_discard_addrs(struct f2fs_sb_info *sbi); | |
2300 | int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); | |
2301 | void allocate_new_segments(struct f2fs_sb_info *sbi); | |
2302 | int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); | |
2303 | bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
2304 | struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); | |
2305 | void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr); | |
2306 | void write_meta_page(struct f2fs_sb_info *sbi, struct page *page); | |
2307 | void write_node_page(unsigned int nid, struct f2fs_io_info *fio); | |
2308 | void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio); | |
d1b3e72d | 2309 | int rewrite_data_page(struct f2fs_io_info *fio); |
cac5a3d8 DS |
2310 | void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, |
2311 | block_t old_blkaddr, block_t new_blkaddr, | |
2312 | bool recover_curseg, bool recover_newaddr); | |
2313 | void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, | |
2314 | block_t old_addr, block_t new_addr, | |
2315 | unsigned char version, bool recover_curseg, | |
2316 | bool recover_newaddr); | |
2317 | void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, | |
2318 | block_t old_blkaddr, block_t *new_blkaddr, | |
fb830fc5 CY |
2319 | struct f2fs_summary *sum, int type, |
2320 | struct f2fs_io_info *fio, bool add_list); | |
cac5a3d8 DS |
2321 | void f2fs_wait_on_page_writeback(struct page *page, |
2322 | enum page_type type, bool ordered); | |
2323 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi, | |
2324 | block_t blkaddr); | |
2325 | void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); | |
2326 | void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); | |
2327 | int lookup_journal_in_cursum(struct f2fs_journal *journal, int type, | |
2328 | unsigned int val, int alloc); | |
2329 | void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
2330 | int build_segment_manager(struct f2fs_sb_info *sbi); | |
2331 | void destroy_segment_manager(struct f2fs_sb_info *sbi); | |
7fd9e544 JK |
2332 | int __init create_segment_manager_caches(void); |
2333 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
2334 | |
2335 | /* | |
2336 | * checkpoint.c | |
2337 | */ | |
cac5a3d8 DS |
2338 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); |
2339 | struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
2340 | struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
2341 | struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); | |
2342 | bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type); | |
2343 | int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, | |
2344 | int type, bool sync); | |
2345 | void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); | |
2346 | long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, | |
2347 | long nr_to_write); | |
2348 | void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); | |
2349 | void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); | |
2350 | void release_ino_entry(struct f2fs_sb_info *sbi, bool all); | |
2351 | bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); | |
2352 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); | |
2353 | int acquire_orphan_inode(struct f2fs_sb_info *sbi); | |
2354 | void release_orphan_inode(struct f2fs_sb_info *sbi); | |
2355 | void add_orphan_inode(struct inode *inode); | |
2356 | void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); | |
2357 | int recover_orphan_inodes(struct f2fs_sb_info *sbi); | |
2358 | int get_valid_checkpoint(struct f2fs_sb_info *sbi); | |
2359 | void update_dirty_page(struct inode *inode, struct page *page); | |
2360 | void remove_dirty_inode(struct inode *inode); | |
2361 | int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); | |
2362 | int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); | |
2363 | void init_ino_entry_info(struct f2fs_sb_info *sbi); | |
6e6093a8 | 2364 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
2365 | void destroy_checkpoint_caches(void); |
2366 | ||
2367 | /* | |
2368 | * data.c | |
2369 | */ | |
b9109b0e JK |
2370 | void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); |
2371 | void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, | |
942fd319 | 2372 | struct inode *inode, nid_t ino, pgoff_t idx, |
b9109b0e JK |
2373 | enum page_type type); |
2374 | void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); | |
cac5a3d8 | 2375 | int f2fs_submit_page_bio(struct f2fs_io_info *fio); |
b9109b0e | 2376 | int f2fs_submit_page_write(struct f2fs_io_info *fio); |
cac5a3d8 DS |
2377 | struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, |
2378 | block_t blk_addr, struct bio *bio); | |
2379 | int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); | |
2380 | void set_data_blkaddr(struct dnode_of_data *dn); | |
2381 | void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); | |
2382 | int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); | |
2383 | int reserve_new_block(struct dnode_of_data *dn); | |
2384 | int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); | |
2385 | int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); | |
2386 | int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); | |
2387 | struct page *get_read_data_page(struct inode *inode, pgoff_t index, | |
2388 | int op_flags, bool for_write); | |
2389 | struct page *find_data_page(struct inode *inode, pgoff_t index); | |
2390 | struct page *get_lock_data_page(struct inode *inode, pgoff_t index, | |
2391 | bool for_write); | |
2392 | struct page *get_new_data_page(struct inode *inode, | |
2393 | struct page *ipage, pgoff_t index, bool new_i_size); | |
2394 | int do_write_data_page(struct f2fs_io_info *fio); | |
2395 | int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, | |
2396 | int create, int flag); | |
2397 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, | |
2398 | u64 start, u64 len); | |
2399 | void f2fs_set_page_dirty_nobuffers(struct page *page); | |
2400 | void f2fs_invalidate_page(struct page *page, unsigned int offset, | |
2401 | unsigned int length); | |
2402 | int f2fs_release_page(struct page *page, gfp_t wait); | |
5b7a487c | 2403 | #ifdef CONFIG_MIGRATION |
cac5a3d8 DS |
2404 | int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, |
2405 | struct page *page, enum migrate_mode mode); | |
5b7a487c | 2406 | #endif |
39a53e0c JK |
2407 | |
2408 | /* | |
2409 | * gc.c | |
2410 | */ | |
cac5a3d8 DS |
2411 | int start_gc_thread(struct f2fs_sb_info *sbi); |
2412 | void stop_gc_thread(struct f2fs_sb_info *sbi); | |
2413 | block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode); | |
e066b83c JK |
2414 | int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, |
2415 | unsigned int segno); | |
cac5a3d8 | 2416 | void build_gc_manager(struct f2fs_sb_info *sbi); |
39a53e0c JK |
2417 | |
2418 | /* | |
2419 | * recovery.c | |
2420 | */ | |
cac5a3d8 DS |
2421 | int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); |
2422 | bool space_for_roll_forward(struct f2fs_sb_info *sbi); | |
39a53e0c JK |
2423 | |
2424 | /* | |
2425 | * debug.c | |
2426 | */ | |
2427 | #ifdef CONFIG_F2FS_STAT_FS | |
2428 | struct f2fs_stat_info { | |
2429 | struct list_head stat_list; | |
2430 | struct f2fs_sb_info *sbi; | |
39a53e0c JK |
2431 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
2432 | int main_area_segs, main_area_sections, main_area_zones; | |
5b7ee374 CY |
2433 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
2434 | unsigned long long hit_total, total_ext; | |
c00ba554 | 2435 | int ext_tree, zombie_tree, ext_node; |
35782b23 JK |
2436 | int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta; |
2437 | int inmem_pages; | |
0f18b462 | 2438 | unsigned int ndirty_dirs, ndirty_files, ndirty_all; |
5b0ef73c JK |
2439 | int nats, dirty_nats, sits, dirty_sits; |
2440 | int free_nids, avail_nids, alloc_nids; | |
39a53e0c | 2441 | int total_count, utilization; |
8b8dd65f CY |
2442 | int bg_gc, nr_wb_cp_data, nr_wb_data; |
2443 | int nr_flushing, nr_flushed, nr_discarding, nr_discarded; | |
5f32366a | 2444 | int nr_discard_cmd; |
d84d1cbd | 2445 | unsigned int undiscard_blks; |
a00861db | 2446 | int inline_xattr, inline_inode, inline_dir, append, update, orphans; |
648d50ba | 2447 | int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; |
f83a2584 | 2448 | unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; |
39a53e0c JK |
2449 | unsigned int bimodal, avg_vblocks; |
2450 | int util_free, util_valid, util_invalid; | |
2451 | int rsvd_segs, overp_segs; | |
2452 | int dirty_count, node_pages, meta_pages; | |
42190d2a | 2453 | int prefree_count, call_count, cp_count, bg_cp_count; |
39a53e0c | 2454 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
e1235983 | 2455 | int bg_node_segs, bg_data_segs; |
39a53e0c | 2456 | int tot_blks, data_blks, node_blks; |
e1235983 | 2457 | int bg_data_blks, bg_node_blks; |
39a53e0c JK |
2458 | int curseg[NR_CURSEG_TYPE]; |
2459 | int cursec[NR_CURSEG_TYPE]; | |
2460 | int curzone[NR_CURSEG_TYPE]; | |
2461 | ||
2462 | unsigned int segment_count[2]; | |
2463 | unsigned int block_count[2]; | |
b9a2c252 | 2464 | unsigned int inplace_count; |
9edcdabf | 2465 | unsigned long long base_mem, cache_mem, page_mem; |
39a53e0c JK |
2466 | }; |
2467 | ||
963d4f7d GZ |
2468 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
2469 | { | |
6c311ec6 | 2470 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
2471 | } |
2472 | ||
942e0be6 | 2473 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
42190d2a | 2474 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
dcdfff65 JK |
2475 | #define stat_inc_call_count(si) ((si)->call_count++) |
2476 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
33fbd510 CY |
2477 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
2478 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) | |
5b7ee374 CY |
2479 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
2480 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) | |
2481 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) | |
2482 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) | |
d5e8f6c9 CY |
2483 | #define stat_inc_inline_xattr(inode) \ |
2484 | do { \ | |
2485 | if (f2fs_has_inline_xattr(inode)) \ | |
2486 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2487 | } while (0) | |
2488 | #define stat_dec_inline_xattr(inode) \ | |
2489 | do { \ | |
2490 | if (f2fs_has_inline_xattr(inode)) \ | |
2491 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ | |
2492 | } while (0) | |
0dbdc2ae JK |
2493 | #define stat_inc_inline_inode(inode) \ |
2494 | do { \ | |
2495 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2496 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae JK |
2497 | } while (0) |
2498 | #define stat_dec_inline_inode(inode) \ | |
2499 | do { \ | |
2500 | if (f2fs_has_inline_data(inode)) \ | |
03e14d52 | 2501 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
0dbdc2ae | 2502 | } while (0) |
3289c061 JK |
2503 | #define stat_inc_inline_dir(inode) \ |
2504 | do { \ | |
2505 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2506 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 JK |
2507 | } while (0) |
2508 | #define stat_dec_inline_dir(inode) \ | |
2509 | do { \ | |
2510 | if (f2fs_has_inline_dentry(inode)) \ | |
03e14d52 | 2511 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
3289c061 | 2512 | } while (0) |
dcdfff65 JK |
2513 | #define stat_inc_seg_type(sbi, curseg) \ |
2514 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
2515 | #define stat_inc_block_count(sbi, curseg) \ | |
2516 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
b9a2c252 CL |
2517 | #define stat_inc_inplace_blocks(sbi) \ |
2518 | (atomic_inc(&(sbi)->inplace_count)) | |
26a28a0c | 2519 | #define stat_inc_atomic_write(inode) \ |
cac5a3d8 | 2520 | (atomic_inc(&F2FS_I_SB(inode)->aw_cnt)) |
26a28a0c | 2521 | #define stat_dec_atomic_write(inode) \ |
cac5a3d8 | 2522 | (atomic_dec(&F2FS_I_SB(inode)->aw_cnt)) |
26a28a0c JK |
2523 | #define stat_update_max_atomic_write(inode) \ |
2524 | do { \ | |
2525 | int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \ | |
2526 | int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ | |
2527 | if (cur > max) \ | |
2528 | atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ | |
2529 | } while (0) | |
648d50ba CY |
2530 | #define stat_inc_volatile_write(inode) \ |
2531 | (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) | |
2532 | #define stat_dec_volatile_write(inode) \ | |
2533 | (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) | |
2534 | #define stat_update_max_volatile_write(inode) \ | |
2535 | do { \ | |
2536 | int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ | |
2537 | int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ | |
2538 | if (cur > max) \ | |
2539 | atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ | |
2540 | } while (0) | |
e1235983 | 2541 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
39a53e0c | 2542 | do { \ |
963d4f7d | 2543 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
68afcf2d TK |
2544 | si->tot_segs++; \ |
2545 | if ((type) == SUM_TYPE_DATA) { \ | |
39a53e0c | 2546 | si->data_segs++; \ |
e1235983 CL |
2547 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2548 | } else { \ | |
39a53e0c | 2549 | si->node_segs++; \ |
e1235983 CL |
2550 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
2551 | } \ | |
39a53e0c JK |
2552 | } while (0) |
2553 | ||
2554 | #define stat_inc_tot_blk_count(si, blks) \ | |
68afcf2d | 2555 | ((si)->tot_blks += (blks)) |
39a53e0c | 2556 | |
e1235983 | 2557 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2558 | do { \ |
963d4f7d | 2559 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2560 | stat_inc_tot_blk_count(si, blks); \ |
2561 | si->data_blks += (blks); \ | |
68afcf2d | 2562 | si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2563 | } while (0) |
2564 | ||
e1235983 | 2565 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
39a53e0c | 2566 | do { \ |
963d4f7d | 2567 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
2568 | stat_inc_tot_blk_count(si, blks); \ |
2569 | si->node_blks += (blks); \ | |
68afcf2d | 2570 | si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ |
39a53e0c JK |
2571 | } while (0) |
2572 | ||
cac5a3d8 DS |
2573 | int f2fs_build_stats(struct f2fs_sb_info *sbi); |
2574 | void f2fs_destroy_stats(struct f2fs_sb_info *sbi); | |
787c7b8c | 2575 | int __init f2fs_create_root_stats(void); |
4589d25d | 2576 | void f2fs_destroy_root_stats(void); |
39a53e0c | 2577 | #else |
d66450e7 AB |
2578 | #define stat_inc_cp_count(si) do { } while (0) |
2579 | #define stat_inc_bg_cp_count(si) do { } while (0) | |
2580 | #define stat_inc_call_count(si) do { } while (0) | |
2581 | #define stat_inc_bggc_count(si) do { } while (0) | |
2582 | #define stat_inc_dirty_inode(sbi, type) do { } while (0) | |
2583 | #define stat_dec_dirty_inode(sbi, type) do { } while (0) | |
2584 | #define stat_inc_total_hit(sb) do { } while (0) | |
2585 | #define stat_inc_rbtree_node_hit(sb) do { } while (0) | |
2586 | #define stat_inc_largest_node_hit(sbi) do { } while (0) | |
2587 | #define stat_inc_cached_node_hit(sbi) do { } while (0) | |
2588 | #define stat_inc_inline_xattr(inode) do { } while (0) | |
2589 | #define stat_dec_inline_xattr(inode) do { } while (0) | |
2590 | #define stat_inc_inline_inode(inode) do { } while (0) | |
2591 | #define stat_dec_inline_inode(inode) do { } while (0) | |
2592 | #define stat_inc_inline_dir(inode) do { } while (0) | |
2593 | #define stat_dec_inline_dir(inode) do { } while (0) | |
2594 | #define stat_inc_atomic_write(inode) do { } while (0) | |
2595 | #define stat_dec_atomic_write(inode) do { } while (0) | |
2596 | #define stat_update_max_atomic_write(inode) do { } while (0) | |
2597 | #define stat_inc_volatile_write(inode) do { } while (0) | |
2598 | #define stat_dec_volatile_write(inode) do { } while (0) | |
2599 | #define stat_update_max_volatile_write(inode) do { } while (0) | |
2600 | #define stat_inc_seg_type(sbi, curseg) do { } while (0) | |
2601 | #define stat_inc_block_count(sbi, curseg) do { } while (0) | |
2602 | #define stat_inc_inplace_blocks(sbi) do { } while (0) | |
2603 | #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) | |
2604 | #define stat_inc_tot_blk_count(si, blks) do { } while (0) | |
2605 | #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) | |
2606 | #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) | |
39a53e0c JK |
2607 | |
2608 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
2609 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
787c7b8c | 2610 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
4589d25d | 2611 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
2612 | #endif |
2613 | ||
2614 | extern const struct file_operations f2fs_dir_operations; | |
2615 | extern const struct file_operations f2fs_file_operations; | |
2616 | extern const struct inode_operations f2fs_file_inode_operations; | |
2617 | extern const struct address_space_operations f2fs_dblock_aops; | |
2618 | extern const struct address_space_operations f2fs_node_aops; | |
2619 | extern const struct address_space_operations f2fs_meta_aops; | |
2620 | extern const struct inode_operations f2fs_dir_inode_operations; | |
2621 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
cbaf042a | 2622 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
39a53e0c | 2623 | extern const struct inode_operations f2fs_special_inode_operations; |
29e7043f | 2624 | extern struct kmem_cache *inode_entry_slab; |
1001b347 | 2625 | |
e18c65b2 HL |
2626 | /* |
2627 | * inline.c | |
2628 | */ | |
cac5a3d8 DS |
2629 | bool f2fs_may_inline_data(struct inode *inode); |
2630 | bool f2fs_may_inline_dentry(struct inode *inode); | |
2631 | void read_inline_data(struct page *page, struct page *ipage); | |
bd4667cb | 2632 | void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from); |
cac5a3d8 DS |
2633 | int f2fs_read_inline_data(struct inode *inode, struct page *page); |
2634 | int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); | |
2635 | int f2fs_convert_inline_inode(struct inode *inode); | |
2636 | int f2fs_write_inline_data(struct inode *inode, struct page *page); | |
2637 | bool recover_inline_data(struct inode *inode, struct page *npage); | |
2638 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir, | |
2639 | struct fscrypt_name *fname, struct page **res_page); | |
2640 | int make_empty_inline_dir(struct inode *inode, struct inode *parent, | |
2641 | struct page *ipage); | |
2642 | int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, | |
2643 | const struct qstr *orig_name, | |
2644 | struct inode *inode, nid_t ino, umode_t mode); | |
2645 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page, | |
2646 | struct inode *dir, struct inode *inode); | |
2647 | bool f2fs_empty_inline_dir(struct inode *dir); | |
2648 | int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, | |
2649 | struct fscrypt_str *fstr); | |
2650 | int f2fs_inline_data_fiemap(struct inode *inode, | |
2651 | struct fiemap_extent_info *fieinfo, | |
2652 | __u64 start, __u64 len); | |
cde4de12 | 2653 | |
2658e50d JK |
2654 | /* |
2655 | * shrinker.c | |
2656 | */ | |
cac5a3d8 DS |
2657 | unsigned long f2fs_shrink_count(struct shrinker *shrink, |
2658 | struct shrink_control *sc); | |
2659 | unsigned long f2fs_shrink_scan(struct shrinker *shrink, | |
2660 | struct shrink_control *sc); | |
2661 | void f2fs_join_shrinker(struct f2fs_sb_info *sbi); | |
2662 | void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); | |
2658e50d | 2663 | |
a28ef1f5 CY |
2664 | /* |
2665 | * extent_cache.c | |
2666 | */ | |
004b6862 CY |
2667 | struct rb_entry *__lookup_rb_tree(struct rb_root *root, |
2668 | struct rb_entry *cached_re, unsigned int ofs); | |
2669 | struct rb_node **__lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, | |
2670 | struct rb_root *root, struct rb_node **parent, | |
2671 | unsigned int ofs); | |
2672 | struct rb_entry *__lookup_rb_tree_ret(struct rb_root *root, | |
2673 | struct rb_entry *cached_re, unsigned int ofs, | |
2674 | struct rb_entry **prev_entry, struct rb_entry **next_entry, | |
2675 | struct rb_node ***insert_p, struct rb_node **insert_parent, | |
2676 | bool force); | |
df0f6b44 CY |
2677 | bool __check_rb_tree_consistence(struct f2fs_sb_info *sbi, |
2678 | struct rb_root *root); | |
cac5a3d8 DS |
2679 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); |
2680 | bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext); | |
2681 | void f2fs_drop_extent_tree(struct inode *inode); | |
2682 | unsigned int f2fs_destroy_extent_node(struct inode *inode); | |
2683 | void f2fs_destroy_extent_tree(struct inode *inode); | |
2684 | bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, | |
2685 | struct extent_info *ei); | |
2686 | void f2fs_update_extent_cache(struct dnode_of_data *dn); | |
19b2c30d | 2687 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
cac5a3d8 DS |
2688 | pgoff_t fofs, block_t blkaddr, unsigned int len); |
2689 | void init_extent_cache_info(struct f2fs_sb_info *sbi); | |
a28ef1f5 CY |
2690 | int __init create_extent_cache(void); |
2691 | void destroy_extent_cache(void); | |
2692 | ||
8ceffcb2 CY |
2693 | /* |
2694 | * sysfs.c | |
2695 | */ | |
2696 | int __init f2fs_register_sysfs(void); | |
2697 | void f2fs_unregister_sysfs(void); | |
2698 | int f2fs_init_sysfs(struct f2fs_sb_info *sbi); | |
2699 | void f2fs_exit_sysfs(struct f2fs_sb_info *sbi); | |
2700 | ||
cde4de12 JK |
2701 | /* |
2702 | * crypto support | |
2703 | */ | |
0b81d077 | 2704 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
cde4de12 | 2705 | { |
cde4de12 | 2706 | return file_is_encrypt(inode); |
cde4de12 JK |
2707 | } |
2708 | ||
2709 | static inline void f2fs_set_encrypted_inode(struct inode *inode) | |
2710 | { | |
2711 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
2712 | file_set_encrypt(inode); | |
2713 | #endif | |
2714 | } | |
2715 | ||
2716 | static inline bool f2fs_bio_encrypted(struct bio *bio) | |
2717 | { | |
0b81d077 | 2718 | return bio->bi_private != NULL; |
cde4de12 JK |
2719 | } |
2720 | ||
2721 | static inline int f2fs_sb_has_crypto(struct super_block *sb) | |
2722 | { | |
cde4de12 | 2723 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
cde4de12 | 2724 | } |
f424f664 | 2725 | |
0bfd7a09 | 2726 | static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb) |
52763a4b | 2727 | { |
0bfd7a09 | 2728 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED); |
52763a4b JK |
2729 | } |
2730 | ||
178053e2 DLM |
2731 | #ifdef CONFIG_BLK_DEV_ZONED |
2732 | static inline int get_blkz_type(struct f2fs_sb_info *sbi, | |
3c62be17 | 2733 | struct block_device *bdev, block_t blkaddr) |
178053e2 DLM |
2734 | { |
2735 | unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; | |
3c62be17 | 2736 | int i; |
178053e2 | 2737 | |
3c62be17 JK |
2738 | for (i = 0; i < sbi->s_ndevs; i++) |
2739 | if (FDEV(i).bdev == bdev) | |
2740 | return FDEV(i).blkz_type[zno]; | |
2741 | return -EINVAL; | |
178053e2 DLM |
2742 | } |
2743 | #endif | |
2744 | ||
96ba2dec | 2745 | static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi) |
52763a4b | 2746 | { |
96ba2dec DLM |
2747 | struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev); |
2748 | ||
2749 | return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb); | |
52763a4b JK |
2750 | } |
2751 | ||
2752 | static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) | |
2753 | { | |
2754 | clear_opt(sbi, ADAPTIVE); | |
2755 | clear_opt(sbi, LFS); | |
2756 | ||
2757 | switch (mt) { | |
2758 | case F2FS_MOUNT_ADAPTIVE: | |
2759 | set_opt(sbi, ADAPTIVE); | |
2760 | break; | |
2761 | case F2FS_MOUNT_LFS: | |
2762 | set_opt(sbi, LFS); | |
2763 | break; | |
2764 | } | |
2765 | } | |
2766 | ||
fcc85a4d JK |
2767 | static inline bool f2fs_may_encrypt(struct inode *inode) |
2768 | { | |
2769 | #ifdef CONFIG_F2FS_FS_ENCRYPTION | |
886f56f9 | 2770 | umode_t mode = inode->i_mode; |
fcc85a4d JK |
2771 | |
2772 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); | |
2773 | #else | |
2774 | return 0; | |
2775 | #endif | |
2776 | } | |
2777 | ||
39a53e0c | 2778 | #endif |