Commit | Line | Data |
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0a8165d7 | 1 | /* |
39a53e0c JK |
2 | * fs/f2fs/f2fs.h |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #ifndef _LINUX_F2FS_H | |
12 | #define _LINUX_F2FS_H | |
13 | ||
14 | #include <linux/types.h> | |
15 | #include <linux/page-flags.h> | |
16 | #include <linux/buffer_head.h> | |
39a53e0c JK |
17 | #include <linux/slab.h> |
18 | #include <linux/crc32.h> | |
19 | #include <linux/magic.h> | |
c2d715d1 | 20 | #include <linux/kobject.h> |
7bd59381 | 21 | #include <linux/sched.h> |
39a53e0c | 22 | |
5d56b671 JK |
23 | #ifdef CONFIG_F2FS_CHECK_FS |
24 | #define f2fs_bug_on(condition) BUG_ON(condition) | |
0daaad97 | 25 | #define f2fs_down_write(x, y) down_write_nest_lock(x, y) |
5d56b671 JK |
26 | #else |
27 | #define f2fs_bug_on(condition) | |
0daaad97 | 28 | #define f2fs_down_write(x, y) down_write(x) |
5d56b671 JK |
29 | #endif |
30 | ||
39a53e0c JK |
31 | /* |
32 | * For mount options | |
33 | */ | |
34 | #define F2FS_MOUNT_BG_GC 0x00000001 | |
35 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 | |
36 | #define F2FS_MOUNT_DISCARD 0x00000004 | |
37 | #define F2FS_MOUNT_NOHEAP 0x00000008 | |
38 | #define F2FS_MOUNT_XATTR_USER 0x00000010 | |
39 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 | |
40 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 | |
444c580f | 41 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
1001b347 | 42 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
6b4afdd7 | 43 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000200 |
39a53e0c JK |
44 | |
45 | #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option) | |
46 | #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option) | |
47 | #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option) | |
48 | ||
49 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ | |
50 | typecheck(unsigned long long, b) && \ | |
51 | ((long long)((a) - (b)) > 0)) | |
52 | ||
a9841c4d JK |
53 | typedef u32 block_t; /* |
54 | * should not change u32, since it is the on-disk block | |
55 | * address format, __le32. | |
56 | */ | |
39a53e0c JK |
57 | typedef u32 nid_t; |
58 | ||
59 | struct f2fs_mount_info { | |
60 | unsigned int opt; | |
61 | }; | |
62 | ||
7e586fa0 JK |
63 | #define CRCPOLY_LE 0xedb88320 |
64 | ||
65 | static inline __u32 f2fs_crc32(void *buf, size_t len) | |
39a53e0c | 66 | { |
7e586fa0 JK |
67 | unsigned char *p = (unsigned char *)buf; |
68 | __u32 crc = F2FS_SUPER_MAGIC; | |
69 | int i; | |
70 | ||
71 | while (len--) { | |
72 | crc ^= *p++; | |
73 | for (i = 0; i < 8; i++) | |
74 | crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0); | |
75 | } | |
76 | return crc; | |
39a53e0c JK |
77 | } |
78 | ||
7e586fa0 | 79 | static inline bool f2fs_crc_valid(__u32 blk_crc, void *buf, size_t buf_size) |
39a53e0c | 80 | { |
7e586fa0 | 81 | return f2fs_crc32(buf, buf_size) == blk_crc; |
39a53e0c JK |
82 | } |
83 | ||
84 | /* | |
85 | * For checkpoint manager | |
86 | */ | |
87 | enum { | |
88 | NAT_BITMAP, | |
89 | SIT_BITMAP | |
90 | }; | |
91 | ||
662befda | 92 | /* |
81c1a0f1 | 93 | * For CP/NAT/SIT/SSA readahead |
662befda CY |
94 | */ |
95 | enum { | |
96 | META_CP, | |
97 | META_NAT, | |
81c1a0f1 CY |
98 | META_SIT, |
99 | META_SSA | |
662befda CY |
100 | }; |
101 | ||
39a53e0c JK |
102 | /* for the list of orphan inodes */ |
103 | struct orphan_inode_entry { | |
104 | struct list_head list; /* list head */ | |
105 | nid_t ino; /* inode number */ | |
106 | }; | |
107 | ||
108 | /* for the list of directory inodes */ | |
109 | struct dir_inode_entry { | |
110 | struct list_head list; /* list head */ | |
111 | struct inode *inode; /* vfs inode pointer */ | |
112 | }; | |
113 | ||
7fd9e544 JK |
114 | /* for the list of blockaddresses to be discarded */ |
115 | struct discard_entry { | |
116 | struct list_head list; /* list head */ | |
117 | block_t blkaddr; /* block address to be discarded */ | |
118 | int len; /* # of consecutive blocks of the discard */ | |
119 | }; | |
120 | ||
39a53e0c JK |
121 | /* for the list of fsync inodes, used only during recovery */ |
122 | struct fsync_inode_entry { | |
123 | struct list_head list; /* list head */ | |
124 | struct inode *inode; /* vfs inode pointer */ | |
125 | block_t blkaddr; /* block address locating the last inode */ | |
126 | }; | |
127 | ||
128 | #define nats_in_cursum(sum) (le16_to_cpu(sum->n_nats)) | |
129 | #define sits_in_cursum(sum) (le16_to_cpu(sum->n_sits)) | |
130 | ||
131 | #define nat_in_journal(sum, i) (sum->nat_j.entries[i].ne) | |
132 | #define nid_in_journal(sum, i) (sum->nat_j.entries[i].nid) | |
133 | #define sit_in_journal(sum, i) (sum->sit_j.entries[i].se) | |
134 | #define segno_in_journal(sum, i) (sum->sit_j.entries[i].segno) | |
135 | ||
136 | static inline int update_nats_in_cursum(struct f2fs_summary_block *rs, int i) | |
137 | { | |
138 | int before = nats_in_cursum(rs); | |
139 | rs->n_nats = cpu_to_le16(before + i); | |
140 | return before; | |
141 | } | |
142 | ||
143 | static inline int update_sits_in_cursum(struct f2fs_summary_block *rs, int i) | |
144 | { | |
145 | int before = sits_in_cursum(rs); | |
146 | rs->n_sits = cpu_to_le16(before + i); | |
147 | return before; | |
148 | } | |
149 | ||
e9750824 NJ |
150 | /* |
151 | * ioctl commands | |
152 | */ | |
153 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS | |
154 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS | |
155 | ||
156 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) | |
157 | /* | |
158 | * ioctl commands in 32 bit emulation | |
159 | */ | |
160 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS | |
161 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS | |
162 | #endif | |
163 | ||
39a53e0c JK |
164 | /* |
165 | * For INODE and NODE manager | |
166 | */ | |
dbe6a5ff JK |
167 | /* |
168 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 | |
169 | * as its node offset to distinguish from index node blocks. | |
170 | * But some bits are used to mark the node block. | |
171 | */ | |
172 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ | |
173 | >> OFFSET_BIT_SHIFT) | |
266e97a8 JK |
174 | enum { |
175 | ALLOC_NODE, /* allocate a new node page if needed */ | |
176 | LOOKUP_NODE, /* look up a node without readahead */ | |
177 | LOOKUP_NODE_RA, /* | |
178 | * look up a node with readahead called | |
4f4124d0 | 179 | * by get_data_block. |
39a53e0c | 180 | */ |
266e97a8 JK |
181 | }; |
182 | ||
39a53e0c JK |
183 | #define F2FS_LINK_MAX 32000 /* maximum link count per file */ |
184 | ||
817202d9 CY |
185 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
186 | ||
39a53e0c | 187 | /* for in-memory extent cache entry */ |
c11abd1a JK |
188 | #define F2FS_MIN_EXTENT_LEN 16 /* minimum extent length */ |
189 | ||
39a53e0c JK |
190 | struct extent_info { |
191 | rwlock_t ext_lock; /* rwlock for consistency */ | |
192 | unsigned int fofs; /* start offset in a file */ | |
193 | u32 blk_addr; /* start block address of the extent */ | |
111d2495 | 194 | unsigned int len; /* length of the extent */ |
39a53e0c JK |
195 | }; |
196 | ||
197 | /* | |
198 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. | |
199 | */ | |
200 | #define FADVISE_COLD_BIT 0x01 | |
354a3399 | 201 | #define FADVISE_LOST_PINO_BIT 0x02 |
39a53e0c | 202 | |
ab9fa662 JK |
203 | #define DEF_DIR_LEVEL 0 |
204 | ||
39a53e0c JK |
205 | struct f2fs_inode_info { |
206 | struct inode vfs_inode; /* serve a vfs inode */ | |
207 | unsigned long i_flags; /* keep an inode flags for ioctl */ | |
208 | unsigned char i_advise; /* use to give file attribute hints */ | |
38431545 | 209 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
39a53e0c | 210 | unsigned int i_current_depth; /* use only in directory structure */ |
6666e6aa | 211 | unsigned int i_pino; /* parent inode number */ |
39a53e0c JK |
212 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
213 | ||
214 | /* Use below internally in f2fs*/ | |
215 | unsigned long flags; /* use to pass per-file flags */ | |
d928bfbf | 216 | struct rw_semaphore i_sem; /* protect fi info */ |
39a53e0c JK |
217 | atomic_t dirty_dents; /* # of dirty dentry pages */ |
218 | f2fs_hash_t chash; /* hash value of given file name */ | |
219 | unsigned int clevel; /* maximum level of given file name */ | |
220 | nid_t i_xattr_nid; /* node id that contains xattrs */ | |
e518ff81 | 221 | unsigned long long xattr_ver; /* cp version of xattr modification */ |
39a53e0c | 222 | struct extent_info ext; /* in-memory extent cache entry */ |
ed57c27f | 223 | struct dir_inode_entry *dirty_dir; /* the pointer of dirty dir */ |
39a53e0c JK |
224 | }; |
225 | ||
226 | static inline void get_extent_info(struct extent_info *ext, | |
227 | struct f2fs_extent i_ext) | |
228 | { | |
229 | write_lock(&ext->ext_lock); | |
230 | ext->fofs = le32_to_cpu(i_ext.fofs); | |
231 | ext->blk_addr = le32_to_cpu(i_ext.blk_addr); | |
232 | ext->len = le32_to_cpu(i_ext.len); | |
233 | write_unlock(&ext->ext_lock); | |
234 | } | |
235 | ||
236 | static inline void set_raw_extent(struct extent_info *ext, | |
237 | struct f2fs_extent *i_ext) | |
238 | { | |
239 | read_lock(&ext->ext_lock); | |
240 | i_ext->fofs = cpu_to_le32(ext->fofs); | |
241 | i_ext->blk_addr = cpu_to_le32(ext->blk_addr); | |
242 | i_ext->len = cpu_to_le32(ext->len); | |
243 | read_unlock(&ext->ext_lock); | |
244 | } | |
245 | ||
246 | struct f2fs_nm_info { | |
247 | block_t nat_blkaddr; /* base disk address of NAT */ | |
248 | nid_t max_nid; /* maximum possible node ids */ | |
7ee0eeab | 249 | nid_t available_nids; /* maximum available node ids */ |
39a53e0c | 250 | nid_t next_scan_nid; /* the next nid to be scanned */ |
cdfc41c1 | 251 | unsigned int ram_thresh; /* control the memory footprint */ |
39a53e0c JK |
252 | |
253 | /* NAT cache management */ | |
254 | struct radix_tree_root nat_root;/* root of the nat entry cache */ | |
255 | rwlock_t nat_tree_lock; /* protect nat_tree_lock */ | |
256 | unsigned int nat_cnt; /* the # of cached nat entries */ | |
257 | struct list_head nat_entries; /* cached nat entry list (clean) */ | |
258 | struct list_head dirty_nat_entries; /* cached nat entry list (dirty) */ | |
259 | ||
260 | /* free node ids management */ | |
8a7ed66a | 261 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
39a53e0c JK |
262 | struct list_head free_nid_list; /* a list for free nids */ |
263 | spinlock_t free_nid_list_lock; /* protect free nid list */ | |
264 | unsigned int fcnt; /* the number of free node id */ | |
265 | struct mutex build_lock; /* lock for build free nids */ | |
266 | ||
267 | /* for checkpoint */ | |
268 | char *nat_bitmap; /* NAT bitmap pointer */ | |
269 | int bitmap_size; /* bitmap size */ | |
270 | }; | |
271 | ||
272 | /* | |
273 | * this structure is used as one of function parameters. | |
274 | * all the information are dedicated to a given direct node block determined | |
275 | * by the data offset in a file. | |
276 | */ | |
277 | struct dnode_of_data { | |
278 | struct inode *inode; /* vfs inode pointer */ | |
279 | struct page *inode_page; /* its inode page, NULL is possible */ | |
280 | struct page *node_page; /* cached direct node page */ | |
281 | nid_t nid; /* node id of the direct node block */ | |
282 | unsigned int ofs_in_node; /* data offset in the node page */ | |
283 | bool inode_page_locked; /* inode page is locked or not */ | |
284 | block_t data_blkaddr; /* block address of the node block */ | |
285 | }; | |
286 | ||
287 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, | |
288 | struct page *ipage, struct page *npage, nid_t nid) | |
289 | { | |
d66d1f76 | 290 | memset(dn, 0, sizeof(*dn)); |
39a53e0c JK |
291 | dn->inode = inode; |
292 | dn->inode_page = ipage; | |
293 | dn->node_page = npage; | |
294 | dn->nid = nid; | |
39a53e0c JK |
295 | } |
296 | ||
297 | /* | |
298 | * For SIT manager | |
299 | * | |
300 | * By default, there are 6 active log areas across the whole main area. | |
301 | * When considering hot and cold data separation to reduce cleaning overhead, | |
302 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, | |
303 | * respectively. | |
304 | * In the current design, you should not change the numbers intentionally. | |
305 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 | |
306 | * logs individually according to the underlying devices. (default: 6) | |
307 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for | |
308 | * data and 8 for node logs. | |
309 | */ | |
310 | #define NR_CURSEG_DATA_TYPE (3) | |
311 | #define NR_CURSEG_NODE_TYPE (3) | |
312 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) | |
313 | ||
314 | enum { | |
315 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ | |
316 | CURSEG_WARM_DATA, /* data blocks */ | |
317 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ | |
318 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ | |
319 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ | |
320 | CURSEG_COLD_NODE, /* indirect node blocks */ | |
321 | NO_CHECK_TYPE | |
322 | }; | |
323 | ||
6b4afdd7 JK |
324 | struct flush_cmd { |
325 | struct flush_cmd *next; | |
326 | struct completion wait; | |
327 | int ret; | |
328 | }; | |
329 | ||
a688b9d9 GZ |
330 | struct flush_cmd_control { |
331 | struct task_struct *f2fs_issue_flush; /* flush thread */ | |
332 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ | |
333 | struct flush_cmd *issue_list; /* list for command issue */ | |
334 | struct flush_cmd *dispatch_list; /* list for command dispatch */ | |
335 | spinlock_t issue_lock; /* for issue list lock */ | |
336 | struct flush_cmd *issue_tail; /* list tail of issue list */ | |
337 | }; | |
338 | ||
39a53e0c JK |
339 | struct f2fs_sm_info { |
340 | struct sit_info *sit_info; /* whole segment information */ | |
341 | struct free_segmap_info *free_info; /* free segment information */ | |
342 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ | |
343 | struct curseg_info *curseg_array; /* active segment information */ | |
344 | ||
345 | struct list_head wblist_head; /* list of under-writeback pages */ | |
346 | spinlock_t wblist_lock; /* lock for checkpoint */ | |
347 | ||
348 | block_t seg0_blkaddr; /* block address of 0'th segment */ | |
349 | block_t main_blkaddr; /* start block address of main area */ | |
350 | block_t ssa_blkaddr; /* start block address of SSA area */ | |
351 | ||
352 | unsigned int segment_count; /* total # of segments */ | |
353 | unsigned int main_segments; /* # of segments in main area */ | |
354 | unsigned int reserved_segments; /* # of reserved segments */ | |
355 | unsigned int ovp_segments; /* # of overprovision segments */ | |
81eb8d6e JK |
356 | |
357 | /* a threshold to reclaim prefree segments */ | |
358 | unsigned int rec_prefree_segments; | |
7fd9e544 JK |
359 | |
360 | /* for small discard management */ | |
361 | struct list_head discard_list; /* 4KB discard list */ | |
362 | int nr_discards; /* # of discards in the list */ | |
363 | int max_discards; /* max. discards to be issued */ | |
216fbd64 JK |
364 | |
365 | unsigned int ipu_policy; /* in-place-update policy */ | |
366 | unsigned int min_ipu_util; /* in-place-update threshold */ | |
6b4afdd7 JK |
367 | |
368 | /* for flush command control */ | |
a688b9d9 GZ |
369 | struct flush_cmd_control *cmd_control_info; |
370 | ||
39a53e0c JK |
371 | }; |
372 | ||
39a53e0c JK |
373 | /* |
374 | * For superblock | |
375 | */ | |
376 | /* | |
377 | * COUNT_TYPE for monitoring | |
378 | * | |
379 | * f2fs monitors the number of several block types such as on-writeback, | |
380 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. | |
381 | */ | |
382 | enum count_type { | |
383 | F2FS_WRITEBACK, | |
384 | F2FS_DIRTY_DENTS, | |
385 | F2FS_DIRTY_NODES, | |
386 | F2FS_DIRTY_META, | |
387 | NR_COUNT_TYPE, | |
388 | }; | |
389 | ||
39a53e0c JK |
390 | /* |
391 | * The below are the page types of bios used in submti_bio(). | |
392 | * The available types are: | |
393 | * DATA User data pages. It operates as async mode. | |
394 | * NODE Node pages. It operates as async mode. | |
395 | * META FS metadata pages such as SIT, NAT, CP. | |
396 | * NR_PAGE_TYPE The number of page types. | |
397 | * META_FLUSH Make sure the previous pages are written | |
398 | * with waiting the bio's completion | |
399 | * ... Only can be used with META. | |
400 | */ | |
7d5e5109 | 401 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
39a53e0c JK |
402 | enum page_type { |
403 | DATA, | |
404 | NODE, | |
405 | META, | |
406 | NR_PAGE_TYPE, | |
407 | META_FLUSH, | |
408 | }; | |
409 | ||
458e6197 | 410 | struct f2fs_io_info { |
7e8f2308 GZ |
411 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
412 | int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */ | |
458e6197 JK |
413 | }; |
414 | ||
93dfe2ac | 415 | #define is_read_io(rw) (((rw) & 1) == READ) |
1ff7bd3b | 416 | struct f2fs_bio_info { |
458e6197 | 417 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
1ff7bd3b JK |
418 | struct bio *bio; /* bios to merge */ |
419 | sector_t last_block_in_bio; /* last block number */ | |
458e6197 | 420 | struct f2fs_io_info fio; /* store buffered io info. */ |
df0f8dc0 | 421 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
1ff7bd3b JK |
422 | }; |
423 | ||
39a53e0c JK |
424 | struct f2fs_sb_info { |
425 | struct super_block *sb; /* pointer to VFS super block */ | |
5e176d54 | 426 | struct proc_dir_entry *s_proc; /* proc entry */ |
39a53e0c JK |
427 | struct buffer_head *raw_super_buf; /* buffer head of raw sb */ |
428 | struct f2fs_super_block *raw_super; /* raw super block pointer */ | |
429 | int s_dirty; /* dirty flag for checkpoint */ | |
430 | ||
431 | /* for node-related operations */ | |
432 | struct f2fs_nm_info *nm_info; /* node manager */ | |
433 | struct inode *node_inode; /* cache node blocks */ | |
434 | ||
435 | /* for segment-related operations */ | |
436 | struct f2fs_sm_info *sm_info; /* segment manager */ | |
1ff7bd3b JK |
437 | |
438 | /* for bio operations */ | |
924b720b | 439 | struct f2fs_bio_info read_io; /* for read bios */ |
1ff7bd3b | 440 | struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ |
1b1f559f | 441 | struct completion *wait_io; /* for completion bios */ |
39a53e0c JK |
442 | |
443 | /* for checkpoint */ | |
444 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ | |
445 | struct inode *meta_inode; /* cache meta blocks */ | |
39936837 | 446 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
e479556b | 447 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
39936837 | 448 | struct mutex node_write; /* locking node writes */ |
39a53e0c | 449 | struct mutex writepages; /* mutex for writepages() */ |
aabe5136 | 450 | bool por_doing; /* recovery is doing or not */ |
fb51b5ef | 451 | wait_queue_head_t cp_wait; |
39a53e0c JK |
452 | |
453 | /* for orphan inode management */ | |
454 | struct list_head orphan_inode_list; /* orphan inode list */ | |
17b692f6 | 455 | spinlock_t orphan_inode_lock; /* for orphan inode list */ |
39a53e0c | 456 | unsigned int n_orphans; /* # of orphan inodes */ |
0d47c1ad | 457 | unsigned int max_orphans; /* max orphan inodes */ |
39a53e0c JK |
458 | |
459 | /* for directory inode management */ | |
460 | struct list_head dir_inode_list; /* dir inode list */ | |
461 | spinlock_t dir_inode_lock; /* for dir inode list lock */ | |
39a53e0c JK |
462 | |
463 | /* basic file system units */ | |
464 | unsigned int log_sectors_per_block; /* log2 sectors per block */ | |
465 | unsigned int log_blocksize; /* log2 block size */ | |
466 | unsigned int blocksize; /* block size */ | |
467 | unsigned int root_ino_num; /* root inode number*/ | |
468 | unsigned int node_ino_num; /* node inode number*/ | |
469 | unsigned int meta_ino_num; /* meta inode number*/ | |
470 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ | |
471 | unsigned int blocks_per_seg; /* blocks per segment */ | |
472 | unsigned int segs_per_sec; /* segments per section */ | |
473 | unsigned int secs_per_zone; /* sections per zone */ | |
474 | unsigned int total_sections; /* total section count */ | |
475 | unsigned int total_node_count; /* total node block count */ | |
476 | unsigned int total_valid_node_count; /* valid node block count */ | |
477 | unsigned int total_valid_inode_count; /* valid inode count */ | |
478 | int active_logs; /* # of active logs */ | |
ab9fa662 | 479 | int dir_level; /* directory level */ |
39a53e0c JK |
480 | |
481 | block_t user_block_count; /* # of user blocks */ | |
482 | block_t total_valid_block_count; /* # of valid blocks */ | |
483 | block_t alloc_valid_block_count; /* # of allocated blocks */ | |
484 | block_t last_valid_block_count; /* for recovery */ | |
485 | u32 s_next_generation; /* for NFS support */ | |
486 | atomic_t nr_pages[NR_COUNT_TYPE]; /* # of pages, see count_type */ | |
487 | ||
488 | struct f2fs_mount_info mount_opt; /* mount options */ | |
489 | ||
490 | /* for cleaning operations */ | |
491 | struct mutex gc_mutex; /* mutex for GC */ | |
492 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ | |
5ec4e49f | 493 | unsigned int cur_victim_sec; /* current victim section num */ |
39a53e0c | 494 | |
b1c57c1c JK |
495 | /* maximum # of trials to find a victim segment for SSR and GC */ |
496 | unsigned int max_victim_search; | |
497 | ||
39a53e0c JK |
498 | /* |
499 | * for stat information. | |
500 | * one is for the LFS mode, and the other is for the SSR mode. | |
501 | */ | |
35b09d82 | 502 | #ifdef CONFIG_F2FS_STAT_FS |
39a53e0c JK |
503 | struct f2fs_stat_info *stat_info; /* FS status information */ |
504 | unsigned int segment_count[2]; /* # of allocated segments */ | |
505 | unsigned int block_count[2]; /* # of allocated blocks */ | |
39a53e0c | 506 | int total_hit_ext, read_hit_ext; /* extent cache hit ratio */ |
0dbdc2ae | 507 | int inline_inode; /* # of inline_data inodes */ |
39a53e0c | 508 | int bg_gc; /* background gc calls */ |
35b09d82 NJ |
509 | unsigned int n_dirty_dirs; /* # of dir inodes */ |
510 | #endif | |
511 | unsigned int last_victim[2]; /* last victim segment # */ | |
39a53e0c | 512 | spinlock_t stat_lock; /* lock for stat operations */ |
b59d0bae NJ |
513 | |
514 | /* For sysfs suppport */ | |
515 | struct kobject s_kobj; | |
516 | struct completion s_kobj_unregister; | |
39a53e0c JK |
517 | }; |
518 | ||
519 | /* | |
520 | * Inline functions | |
521 | */ | |
522 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) | |
523 | { | |
524 | return container_of(inode, struct f2fs_inode_info, vfs_inode); | |
525 | } | |
526 | ||
527 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) | |
528 | { | |
529 | return sb->s_fs_info; | |
530 | } | |
531 | ||
532 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) | |
533 | { | |
534 | return (struct f2fs_super_block *)(sbi->raw_super); | |
535 | } | |
536 | ||
537 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) | |
538 | { | |
539 | return (struct f2fs_checkpoint *)(sbi->ckpt); | |
540 | } | |
541 | ||
45590710 GZ |
542 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
543 | { | |
544 | return (struct f2fs_node *)page_address(page); | |
545 | } | |
546 | ||
58bfaf44 JK |
547 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
548 | { | |
549 | return &((struct f2fs_node *)page_address(page))->i; | |
550 | } | |
551 | ||
39a53e0c JK |
552 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
553 | { | |
554 | return (struct f2fs_nm_info *)(sbi->nm_info); | |
555 | } | |
556 | ||
557 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) | |
558 | { | |
559 | return (struct f2fs_sm_info *)(sbi->sm_info); | |
560 | } | |
561 | ||
562 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) | |
563 | { | |
564 | return (struct sit_info *)(SM_I(sbi)->sit_info); | |
565 | } | |
566 | ||
567 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) | |
568 | { | |
569 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); | |
570 | } | |
571 | ||
572 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) | |
573 | { | |
574 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); | |
575 | } | |
576 | ||
9df27d98 GZ |
577 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
578 | { | |
579 | return sbi->meta_inode->i_mapping; | |
580 | } | |
581 | ||
4ef51a8f JK |
582 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
583 | { | |
584 | return sbi->node_inode->i_mapping; | |
585 | } | |
586 | ||
39a53e0c JK |
587 | static inline void F2FS_SET_SB_DIRT(struct f2fs_sb_info *sbi) |
588 | { | |
589 | sbi->s_dirty = 1; | |
590 | } | |
591 | ||
592 | static inline void F2FS_RESET_SB_DIRT(struct f2fs_sb_info *sbi) | |
593 | { | |
594 | sbi->s_dirty = 0; | |
595 | } | |
596 | ||
d71b5564 JK |
597 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
598 | { | |
599 | return le64_to_cpu(cp->checkpoint_ver); | |
600 | } | |
601 | ||
25ca923b JK |
602 | static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
603 | { | |
604 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
605 | return ckpt_flags & f; | |
606 | } | |
607 | ||
608 | static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
609 | { | |
610 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
611 | ckpt_flags |= f; | |
612 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
613 | } | |
614 | ||
615 | static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) | |
616 | { | |
617 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); | |
618 | ckpt_flags &= (~f); | |
619 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); | |
620 | } | |
621 | ||
e479556b | 622 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
39936837 | 623 | { |
e479556b | 624 | down_read(&sbi->cp_rwsem); |
39936837 JK |
625 | } |
626 | ||
e479556b | 627 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
39a53e0c | 628 | { |
e479556b | 629 | up_read(&sbi->cp_rwsem); |
39a53e0c JK |
630 | } |
631 | ||
e479556b | 632 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
39a53e0c | 633 | { |
0daaad97 | 634 | f2fs_down_write(&sbi->cp_rwsem, &sbi->cp_mutex); |
39936837 JK |
635 | } |
636 | ||
e479556b | 637 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
39936837 | 638 | { |
e479556b | 639 | up_write(&sbi->cp_rwsem); |
39a53e0c JK |
640 | } |
641 | ||
642 | /* | |
643 | * Check whether the given nid is within node id range. | |
644 | */ | |
064e0823 | 645 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
39a53e0c | 646 | { |
064e0823 | 647 | WARN_ON((nid >= NM_I(sbi)->max_nid)); |
cfb271d4 | 648 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
064e0823 NJ |
649 | return -EINVAL; |
650 | return 0; | |
39a53e0c JK |
651 | } |
652 | ||
653 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 | |
654 | ||
655 | /* | |
656 | * Check whether the inode has blocks or not | |
657 | */ | |
658 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) | |
659 | { | |
660 | if (F2FS_I(inode)->i_xattr_nid) | |
6c311ec6 | 661 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1; |
39a53e0c | 662 | else |
6c311ec6 | 663 | return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS; |
39a53e0c JK |
664 | } |
665 | ||
4bc8e9bc CY |
666 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
667 | { | |
668 | return ofs == XATTR_NODE_OFFSET; | |
669 | } | |
670 | ||
39a53e0c JK |
671 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
672 | struct inode *inode, blkcnt_t count) | |
673 | { | |
674 | block_t valid_block_count; | |
675 | ||
676 | spin_lock(&sbi->stat_lock); | |
677 | valid_block_count = | |
678 | sbi->total_valid_block_count + (block_t)count; | |
cfb271d4 | 679 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
680 | spin_unlock(&sbi->stat_lock); |
681 | return false; | |
682 | } | |
683 | inode->i_blocks += count; | |
684 | sbi->total_valid_block_count = valid_block_count; | |
685 | sbi->alloc_valid_block_count += (block_t)count; | |
686 | spin_unlock(&sbi->stat_lock); | |
687 | return true; | |
688 | } | |
689 | ||
da19b0dc | 690 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
39a53e0c JK |
691 | struct inode *inode, |
692 | blkcnt_t count) | |
693 | { | |
694 | spin_lock(&sbi->stat_lock); | |
5d56b671 JK |
695 | f2fs_bug_on(sbi->total_valid_block_count < (block_t) count); |
696 | f2fs_bug_on(inode->i_blocks < count); | |
39a53e0c JK |
697 | inode->i_blocks -= count; |
698 | sbi->total_valid_block_count -= (block_t)count; | |
699 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
700 | } |
701 | ||
702 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) | |
703 | { | |
704 | atomic_inc(&sbi->nr_pages[count_type]); | |
705 | F2FS_SET_SB_DIRT(sbi); | |
706 | } | |
707 | ||
708 | static inline void inode_inc_dirty_dents(struct inode *inode) | |
709 | { | |
1fe54f9d | 710 | inc_page_count(F2FS_SB(inode->i_sb), F2FS_DIRTY_DENTS); |
39a53e0c JK |
711 | atomic_inc(&F2FS_I(inode)->dirty_dents); |
712 | } | |
713 | ||
714 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) | |
715 | { | |
716 | atomic_dec(&sbi->nr_pages[count_type]); | |
717 | } | |
718 | ||
719 | static inline void inode_dec_dirty_dents(struct inode *inode) | |
720 | { | |
1fe54f9d JK |
721 | if (!S_ISDIR(inode->i_mode)) |
722 | return; | |
723 | ||
724 | dec_page_count(F2FS_SB(inode->i_sb), F2FS_DIRTY_DENTS); | |
39a53e0c JK |
725 | atomic_dec(&F2FS_I(inode)->dirty_dents); |
726 | } | |
727 | ||
728 | static inline int get_pages(struct f2fs_sb_info *sbi, int count_type) | |
729 | { | |
730 | return atomic_read(&sbi->nr_pages[count_type]); | |
731 | } | |
732 | ||
f8b2c1f9 JK |
733 | static inline int get_dirty_dents(struct inode *inode) |
734 | { | |
735 | return atomic_read(&F2FS_I(inode)->dirty_dents); | |
736 | } | |
737 | ||
5ac206cf NJ |
738 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
739 | { | |
740 | unsigned int pages_per_sec = sbi->segs_per_sec * | |
741 | (1 << sbi->log_blocks_per_seg); | |
742 | return ((get_pages(sbi, block_type) + pages_per_sec - 1) | |
743 | >> sbi->log_blocks_per_seg) / sbi->segs_per_sec; | |
744 | } | |
745 | ||
39a53e0c JK |
746 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
747 | { | |
8b8343fa | 748 | return sbi->total_valid_block_count; |
39a53e0c JK |
749 | } |
750 | ||
751 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) | |
752 | { | |
753 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
754 | ||
755 | /* return NAT or SIT bitmap */ | |
756 | if (flag == NAT_BITMAP) | |
757 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
758 | else if (flag == SIT_BITMAP) | |
759 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); | |
760 | ||
761 | return 0; | |
762 | } | |
763 | ||
764 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) | |
765 | { | |
766 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
1dbe4152 CL |
767 | int offset; |
768 | ||
769 | if (le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload) > 0) { | |
770 | if (flag == NAT_BITMAP) | |
771 | return &ckpt->sit_nat_version_bitmap; | |
772 | else | |
773 | return ((unsigned char *)ckpt + F2FS_BLKSIZE); | |
774 | } else { | |
775 | offset = (flag == NAT_BITMAP) ? | |
25ca923b | 776 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
1dbe4152 CL |
777 | return &ckpt->sit_nat_version_bitmap + offset; |
778 | } | |
39a53e0c JK |
779 | } |
780 | ||
781 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) | |
782 | { | |
783 | block_t start_addr; | |
784 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
d71b5564 | 785 | unsigned long long ckpt_version = cur_cp_version(ckpt); |
39a53e0c | 786 | |
25ca923b | 787 | start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
39a53e0c JK |
788 | |
789 | /* | |
790 | * odd numbered checkpoint should at cp segment 0 | |
791 | * and even segent must be at cp segment 1 | |
792 | */ | |
793 | if (!(ckpt_version & 1)) | |
794 | start_addr += sbi->blocks_per_seg; | |
795 | ||
796 | return start_addr; | |
797 | } | |
798 | ||
799 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) | |
800 | { | |
801 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); | |
802 | } | |
803 | ||
804 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 805 | struct inode *inode) |
39a53e0c JK |
806 | { |
807 | block_t valid_block_count; | |
808 | unsigned int valid_node_count; | |
809 | ||
810 | spin_lock(&sbi->stat_lock); | |
811 | ||
ef86d709 | 812 | valid_block_count = sbi->total_valid_block_count + 1; |
cfb271d4 | 813 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
39a53e0c JK |
814 | spin_unlock(&sbi->stat_lock); |
815 | return false; | |
816 | } | |
817 | ||
ef86d709 | 818 | valid_node_count = sbi->total_valid_node_count + 1; |
cfb271d4 | 819 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
39a53e0c JK |
820 | spin_unlock(&sbi->stat_lock); |
821 | return false; | |
822 | } | |
823 | ||
824 | if (inode) | |
ef86d709 GZ |
825 | inode->i_blocks++; |
826 | ||
827 | sbi->alloc_valid_block_count++; | |
828 | sbi->total_valid_node_count++; | |
829 | sbi->total_valid_block_count++; | |
39a53e0c JK |
830 | spin_unlock(&sbi->stat_lock); |
831 | ||
832 | return true; | |
833 | } | |
834 | ||
835 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, | |
ef86d709 | 836 | struct inode *inode) |
39a53e0c JK |
837 | { |
838 | spin_lock(&sbi->stat_lock); | |
839 | ||
ef86d709 GZ |
840 | f2fs_bug_on(!sbi->total_valid_block_count); |
841 | f2fs_bug_on(!sbi->total_valid_node_count); | |
842 | f2fs_bug_on(!inode->i_blocks); | |
39a53e0c | 843 | |
ef86d709 GZ |
844 | inode->i_blocks--; |
845 | sbi->total_valid_node_count--; | |
846 | sbi->total_valid_block_count--; | |
39a53e0c JK |
847 | |
848 | spin_unlock(&sbi->stat_lock); | |
849 | } | |
850 | ||
851 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) | |
852 | { | |
8b8343fa | 853 | return sbi->total_valid_node_count; |
39a53e0c JK |
854 | } |
855 | ||
856 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) | |
857 | { | |
858 | spin_lock(&sbi->stat_lock); | |
5d56b671 | 859 | f2fs_bug_on(sbi->total_valid_inode_count == sbi->total_node_count); |
39a53e0c JK |
860 | sbi->total_valid_inode_count++; |
861 | spin_unlock(&sbi->stat_lock); | |
862 | } | |
863 | ||
0e80220a | 864 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
39a53e0c JK |
865 | { |
866 | spin_lock(&sbi->stat_lock); | |
5d56b671 | 867 | f2fs_bug_on(!sbi->total_valid_inode_count); |
39a53e0c JK |
868 | sbi->total_valid_inode_count--; |
869 | spin_unlock(&sbi->stat_lock); | |
39a53e0c JK |
870 | } |
871 | ||
872 | static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) | |
873 | { | |
8b8343fa | 874 | return sbi->total_valid_inode_count; |
39a53e0c JK |
875 | } |
876 | ||
877 | static inline void f2fs_put_page(struct page *page, int unlock) | |
878 | { | |
031fa8cc | 879 | if (!page) |
39a53e0c JK |
880 | return; |
881 | ||
882 | if (unlock) { | |
5d56b671 | 883 | f2fs_bug_on(!PageLocked(page)); |
39a53e0c JK |
884 | unlock_page(page); |
885 | } | |
886 | page_cache_release(page); | |
887 | } | |
888 | ||
889 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) | |
890 | { | |
891 | if (dn->node_page) | |
892 | f2fs_put_page(dn->node_page, 1); | |
893 | if (dn->inode_page && dn->node_page != dn->inode_page) | |
894 | f2fs_put_page(dn->inode_page, 0); | |
895 | dn->node_page = NULL; | |
896 | dn->inode_page = NULL; | |
897 | } | |
898 | ||
899 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, | |
e8512d2e | 900 | size_t size) |
39a53e0c | 901 | { |
e8512d2e | 902 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
39a53e0c JK |
903 | } |
904 | ||
7bd59381 GZ |
905 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
906 | gfp_t flags) | |
907 | { | |
908 | void *entry; | |
909 | retry: | |
910 | entry = kmem_cache_alloc(cachep, flags); | |
911 | if (!entry) { | |
912 | cond_resched(); | |
913 | goto retry; | |
914 | } | |
915 | ||
916 | return entry; | |
917 | } | |
918 | ||
39a53e0c JK |
919 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
920 | ||
921 | static inline bool IS_INODE(struct page *page) | |
922 | { | |
45590710 | 923 | struct f2fs_node *p = F2FS_NODE(page); |
39a53e0c JK |
924 | return RAW_IS_INODE(p); |
925 | } | |
926 | ||
927 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) | |
928 | { | |
929 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; | |
930 | } | |
931 | ||
932 | static inline block_t datablock_addr(struct page *node_page, | |
933 | unsigned int offset) | |
934 | { | |
935 | struct f2fs_node *raw_node; | |
936 | __le32 *addr_array; | |
45590710 | 937 | raw_node = F2FS_NODE(node_page); |
39a53e0c JK |
938 | addr_array = blkaddr_in_node(raw_node); |
939 | return le32_to_cpu(addr_array[offset]); | |
940 | } | |
941 | ||
942 | static inline int f2fs_test_bit(unsigned int nr, char *addr) | |
943 | { | |
944 | int mask; | |
945 | ||
946 | addr += (nr >> 3); | |
947 | mask = 1 << (7 - (nr & 0x07)); | |
948 | return mask & *addr; | |
949 | } | |
950 | ||
951 | static inline int f2fs_set_bit(unsigned int nr, char *addr) | |
952 | { | |
953 | int mask; | |
954 | int ret; | |
955 | ||
956 | addr += (nr >> 3); | |
957 | mask = 1 << (7 - (nr & 0x07)); | |
958 | ret = mask & *addr; | |
959 | *addr |= mask; | |
960 | return ret; | |
961 | } | |
962 | ||
963 | static inline int f2fs_clear_bit(unsigned int nr, char *addr) | |
964 | { | |
965 | int mask; | |
966 | int ret; | |
967 | ||
968 | addr += (nr >> 3); | |
969 | mask = 1 << (7 - (nr & 0x07)); | |
970 | ret = mask & *addr; | |
971 | *addr &= ~mask; | |
972 | return ret; | |
973 | } | |
974 | ||
975 | /* used for f2fs_inode_info->flags */ | |
976 | enum { | |
977 | FI_NEW_INODE, /* indicate newly allocated inode */ | |
b3783873 | 978 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
ed57c27f | 979 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
39a53e0c JK |
980 | FI_INC_LINK, /* need to increment i_nlink */ |
981 | FI_ACL_MODE, /* indicate acl mode */ | |
982 | FI_NO_ALLOC, /* should not allocate any blocks */ | |
699489bb | 983 | FI_UPDATE_DIR, /* should update inode block for consistency */ |
74d0b917 | 984 | FI_DELAY_IPUT, /* used for the recovery */ |
c11abd1a | 985 | FI_NO_EXTENT, /* not to use the extent cache */ |
444c580f | 986 | FI_INLINE_XATTR, /* used for inline xattr */ |
1001b347 | 987 | FI_INLINE_DATA, /* used for inline data*/ |
39a53e0c JK |
988 | }; |
989 | ||
990 | static inline void set_inode_flag(struct f2fs_inode_info *fi, int flag) | |
991 | { | |
992 | set_bit(flag, &fi->flags); | |
993 | } | |
994 | ||
995 | static inline int is_inode_flag_set(struct f2fs_inode_info *fi, int flag) | |
996 | { | |
997 | return test_bit(flag, &fi->flags); | |
998 | } | |
999 | ||
1000 | static inline void clear_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1001 | { | |
1002 | clear_bit(flag, &fi->flags); | |
1003 | } | |
1004 | ||
1005 | static inline void set_acl_inode(struct f2fs_inode_info *fi, umode_t mode) | |
1006 | { | |
1007 | fi->i_acl_mode = mode; | |
1008 | set_inode_flag(fi, FI_ACL_MODE); | |
1009 | } | |
1010 | ||
1011 | static inline int cond_clear_inode_flag(struct f2fs_inode_info *fi, int flag) | |
1012 | { | |
1013 | if (is_inode_flag_set(fi, FI_ACL_MODE)) { | |
1014 | clear_inode_flag(fi, FI_ACL_MODE); | |
1015 | return 1; | |
1016 | } | |
1017 | return 0; | |
1018 | } | |
1019 | ||
444c580f JK |
1020 | static inline void get_inline_info(struct f2fs_inode_info *fi, |
1021 | struct f2fs_inode *ri) | |
1022 | { | |
1023 | if (ri->i_inline & F2FS_INLINE_XATTR) | |
1024 | set_inode_flag(fi, FI_INLINE_XATTR); | |
1001b347 HL |
1025 | if (ri->i_inline & F2FS_INLINE_DATA) |
1026 | set_inode_flag(fi, FI_INLINE_DATA); | |
444c580f JK |
1027 | } |
1028 | ||
1029 | static inline void set_raw_inline(struct f2fs_inode_info *fi, | |
1030 | struct f2fs_inode *ri) | |
1031 | { | |
1032 | ri->i_inline = 0; | |
1033 | ||
1034 | if (is_inode_flag_set(fi, FI_INLINE_XATTR)) | |
1035 | ri->i_inline |= F2FS_INLINE_XATTR; | |
1001b347 HL |
1036 | if (is_inode_flag_set(fi, FI_INLINE_DATA)) |
1037 | ri->i_inline |= F2FS_INLINE_DATA; | |
444c580f JK |
1038 | } |
1039 | ||
987c7c31 CY |
1040 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
1041 | { | |
1042 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR); | |
1043 | } | |
1044 | ||
de93653f JK |
1045 | static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi) |
1046 | { | |
987c7c31 | 1047 | if (f2fs_has_inline_xattr(&fi->vfs_inode)) |
de93653f JK |
1048 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
1049 | return DEF_ADDRS_PER_INODE; | |
1050 | } | |
1051 | ||
65985d93 JK |
1052 | static inline void *inline_xattr_addr(struct page *page) |
1053 | { | |
695fd1ed | 1054 | struct f2fs_inode *ri = F2FS_INODE(page); |
65985d93 JK |
1055 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
1056 | F2FS_INLINE_XATTR_ADDRS]); | |
1057 | } | |
1058 | ||
1059 | static inline int inline_xattr_size(struct inode *inode) | |
1060 | { | |
987c7c31 | 1061 | if (f2fs_has_inline_xattr(inode)) |
65985d93 JK |
1062 | return F2FS_INLINE_XATTR_ADDRS << 2; |
1063 | else | |
1064 | return 0; | |
1065 | } | |
1066 | ||
0dbdc2ae JK |
1067 | static inline int f2fs_has_inline_data(struct inode *inode) |
1068 | { | |
1069 | return is_inode_flag_set(F2FS_I(inode), FI_INLINE_DATA); | |
1070 | } | |
1071 | ||
1001b347 HL |
1072 | static inline void *inline_data_addr(struct page *page) |
1073 | { | |
695fd1ed | 1074 | struct f2fs_inode *ri = F2FS_INODE(page); |
1001b347 HL |
1075 | return (void *)&(ri->i_addr[1]); |
1076 | } | |
1077 | ||
77888c1e JK |
1078 | static inline int f2fs_readonly(struct super_block *sb) |
1079 | { | |
1080 | return sb->s_flags & MS_RDONLY; | |
1081 | } | |
1082 | ||
744602cf JK |
1083 | static inline void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi) |
1084 | { | |
1085 | set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG); | |
1086 | sbi->sb->s_flags |= MS_RDONLY; | |
1087 | } | |
1088 | ||
a6dda0e6 CH |
1089 | #define get_inode_mode(i) \ |
1090 | ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \ | |
1091 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) | |
1092 | ||
267378d4 CY |
1093 | /* get offset of first page in next direct node */ |
1094 | #define PGOFS_OF_NEXT_DNODE(pgofs, fi) \ | |
1095 | ((pgofs < ADDRS_PER_INODE(fi)) ? ADDRS_PER_INODE(fi) : \ | |
1096 | (pgofs - ADDRS_PER_INODE(fi) + ADDRS_PER_BLOCK) / \ | |
1097 | ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(fi)) | |
1098 | ||
39a53e0c JK |
1099 | /* |
1100 | * file.c | |
1101 | */ | |
1102 | int f2fs_sync_file(struct file *, loff_t, loff_t, int); | |
1103 | void truncate_data_blocks(struct dnode_of_data *); | |
1e1bb4ba | 1104 | int truncate_blocks(struct inode *, u64); |
39a53e0c | 1105 | void f2fs_truncate(struct inode *); |
2d4d9fb5 | 1106 | int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
39a53e0c JK |
1107 | int f2fs_setattr(struct dentry *, struct iattr *); |
1108 | int truncate_hole(struct inode *, pgoff_t, pgoff_t); | |
b292dcab | 1109 | int truncate_data_blocks_range(struct dnode_of_data *, int); |
39a53e0c | 1110 | long f2fs_ioctl(struct file *, unsigned int, unsigned long); |
e9750824 | 1111 | long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long); |
39a53e0c JK |
1112 | |
1113 | /* | |
1114 | * inode.c | |
1115 | */ | |
1116 | void f2fs_set_inode_flags(struct inode *); | |
39a53e0c | 1117 | struct inode *f2fs_iget(struct super_block *, unsigned long); |
4660f9c0 | 1118 | int try_to_free_nats(struct f2fs_sb_info *, int); |
39a53e0c | 1119 | void update_inode(struct inode *, struct page *); |
744602cf | 1120 | void update_inode_page(struct inode *); |
39a53e0c JK |
1121 | int f2fs_write_inode(struct inode *, struct writeback_control *); |
1122 | void f2fs_evict_inode(struct inode *); | |
1123 | ||
1124 | /* | |
1125 | * namei.c | |
1126 | */ | |
1127 | struct dentry *f2fs_get_parent(struct dentry *child); | |
1128 | ||
1129 | /* | |
1130 | * dir.c | |
1131 | */ | |
1132 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *, | |
1133 | struct page **); | |
1134 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); | |
1135 | ino_t f2fs_inode_by_name(struct inode *, struct qstr *); | |
1136 | void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, | |
1137 | struct page *, struct inode *); | |
1cd14caf | 1138 | int update_dent_inode(struct inode *, const struct qstr *); |
b7f7a5e0 | 1139 | int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *); |
39a53e0c JK |
1140 | void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *); |
1141 | int f2fs_make_empty(struct inode *, struct inode *); | |
1142 | bool f2fs_empty_dir(struct inode *); | |
1143 | ||
b7f7a5e0 AV |
1144 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
1145 | { | |
1146 | return __f2fs_add_link(dentry->d_parent->d_inode, &dentry->d_name, | |
1147 | inode); | |
1148 | } | |
1149 | ||
39a53e0c JK |
1150 | /* |
1151 | * super.c | |
1152 | */ | |
1153 | int f2fs_sync_fs(struct super_block *, int); | |
a07ef784 NJ |
1154 | extern __printf(3, 4) |
1155 | void f2fs_msg(struct super_block *, const char *, const char *, ...); | |
39a53e0c JK |
1156 | |
1157 | /* | |
1158 | * hash.c | |
1159 | */ | |
9836b8b9 | 1160 | f2fs_hash_t f2fs_dentry_hash(const char *, size_t); |
39a53e0c JK |
1161 | |
1162 | /* | |
1163 | * node.c | |
1164 | */ | |
1165 | struct dnode_of_data; | |
1166 | struct node_info; | |
1167 | ||
6fb03f3a | 1168 | bool available_free_memory(struct f2fs_sb_info *, int); |
39a53e0c | 1169 | int is_checkpointed_node(struct f2fs_sb_info *, nid_t); |
479f40c4 | 1170 | bool fsync_mark_done(struct f2fs_sb_info *, nid_t); |
b6fe5873 | 1171 | void fsync_mark_clear(struct f2fs_sb_info *, nid_t); |
39a53e0c JK |
1172 | void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); |
1173 | int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int); | |
1174 | int truncate_inode_blocks(struct inode *, pgoff_t); | |
4f16fb0f | 1175 | int truncate_xattr_node(struct inode *, struct page *); |
cfe58f9d | 1176 | int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t); |
58e674d6 | 1177 | void remove_inode_page(struct inode *); |
44a83ff6 | 1178 | struct page *new_inode_page(struct inode *, const struct qstr *); |
8ae8f162 | 1179 | struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *); |
39a53e0c JK |
1180 | void ra_node_page(struct f2fs_sb_info *, nid_t); |
1181 | struct page *get_node_page(struct f2fs_sb_info *, pgoff_t); | |
1182 | struct page *get_node_page_ra(struct page *, int); | |
1183 | void sync_inode_page(struct dnode_of_data *); | |
1184 | int sync_node_pages(struct f2fs_sb_info *, nid_t, struct writeback_control *); | |
1185 | bool alloc_nid(struct f2fs_sb_info *, nid_t *); | |
1186 | void alloc_nid_done(struct f2fs_sb_info *, nid_t); | |
1187 | void alloc_nid_failed(struct f2fs_sb_info *, nid_t); | |
1188 | void recover_node_page(struct f2fs_sb_info *, struct page *, | |
1189 | struct f2fs_summary *, struct node_info *, block_t); | |
abb2366c | 1190 | bool recover_xattr_data(struct inode *, struct page *, block_t); |
39a53e0c JK |
1191 | int recover_inode_page(struct f2fs_sb_info *, struct page *); |
1192 | int restore_node_summary(struct f2fs_sb_info *, unsigned int, | |
1193 | struct f2fs_summary_block *); | |
1194 | void flush_nat_entries(struct f2fs_sb_info *); | |
1195 | int build_node_manager(struct f2fs_sb_info *); | |
1196 | void destroy_node_manager(struct f2fs_sb_info *); | |
6e6093a8 | 1197 | int __init create_node_manager_caches(void); |
39a53e0c JK |
1198 | void destroy_node_manager_caches(void); |
1199 | ||
1200 | /* | |
1201 | * segment.c | |
1202 | */ | |
1203 | void f2fs_balance_fs(struct f2fs_sb_info *); | |
4660f9c0 | 1204 | void f2fs_balance_fs_bg(struct f2fs_sb_info *); |
6b4afdd7 | 1205 | int f2fs_issue_flush(struct f2fs_sb_info *); |
2163d198 GZ |
1206 | int create_flush_cmd_control(struct f2fs_sb_info *); |
1207 | void destroy_flush_cmd_control(struct f2fs_sb_info *); | |
39a53e0c | 1208 | void invalidate_blocks(struct f2fs_sb_info *, block_t); |
5e443818 | 1209 | void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); |
39a53e0c | 1210 | void clear_prefree_segments(struct f2fs_sb_info *); |
1e87a78d | 1211 | void discard_next_dnode(struct f2fs_sb_info *); |
39a53e0c JK |
1212 | int npages_for_summary_flush(struct f2fs_sb_info *); |
1213 | void allocate_new_segments(struct f2fs_sb_info *); | |
1214 | struct page *get_sum_page(struct f2fs_sb_info *, unsigned int); | |
577e3495 | 1215 | void write_meta_page(struct f2fs_sb_info *, struct page *); |
fb5566da JK |
1216 | void write_node_page(struct f2fs_sb_info *, struct page *, |
1217 | struct f2fs_io_info *, unsigned int, block_t, block_t *); | |
458e6197 JK |
1218 | void write_data_page(struct page *, struct dnode_of_data *, block_t *, |
1219 | struct f2fs_io_info *); | |
1220 | void rewrite_data_page(struct page *, block_t, struct f2fs_io_info *); | |
39a53e0c JK |
1221 | void recover_data_page(struct f2fs_sb_info *, struct page *, |
1222 | struct f2fs_summary *, block_t, block_t); | |
1223 | void rewrite_node_page(struct f2fs_sb_info *, struct page *, | |
1224 | struct f2fs_summary *, block_t, block_t); | |
bfad7c2d JK |
1225 | void allocate_data_block(struct f2fs_sb_info *, struct page *, |
1226 | block_t, block_t *, struct f2fs_summary *, int); | |
5514f0aa | 1227 | void f2fs_wait_on_page_writeback(struct page *, enum page_type); |
39a53e0c JK |
1228 | void write_data_summaries(struct f2fs_sb_info *, block_t); |
1229 | void write_node_summaries(struct f2fs_sb_info *, block_t); | |
1230 | int lookup_journal_in_cursum(struct f2fs_summary_block *, | |
1231 | int, unsigned int, int); | |
1232 | void flush_sit_entries(struct f2fs_sb_info *); | |
1233 | int build_segment_manager(struct f2fs_sb_info *); | |
39a53e0c | 1234 | void destroy_segment_manager(struct f2fs_sb_info *); |
7fd9e544 JK |
1235 | int __init create_segment_manager_caches(void); |
1236 | void destroy_segment_manager_caches(void); | |
39a53e0c JK |
1237 | |
1238 | /* | |
1239 | * checkpoint.c | |
1240 | */ | |
1241 | struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); | |
1242 | struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); | |
662befda | 1243 | int ra_meta_pages(struct f2fs_sb_info *, int, int, int); |
39a53e0c | 1244 | long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); |
cbd56e7d JK |
1245 | int acquire_orphan_inode(struct f2fs_sb_info *); |
1246 | void release_orphan_inode(struct f2fs_sb_info *); | |
39a53e0c JK |
1247 | void add_orphan_inode(struct f2fs_sb_info *, nid_t); |
1248 | void remove_orphan_inode(struct f2fs_sb_info *, nid_t); | |
8f99a946 | 1249 | void recover_orphan_inodes(struct f2fs_sb_info *); |
39a53e0c JK |
1250 | int get_valid_checkpoint(struct f2fs_sb_info *); |
1251 | void set_dirty_dir_page(struct inode *, struct page *); | |
5deb8267 | 1252 | void add_dirty_dir_inode(struct inode *); |
39a53e0c JK |
1253 | void remove_dirty_dir_inode(struct inode *); |
1254 | void sync_dirty_dir_inodes(struct f2fs_sb_info *); | |
43727527 | 1255 | void write_checkpoint(struct f2fs_sb_info *, bool); |
39a53e0c | 1256 | void init_orphan_info(struct f2fs_sb_info *); |
6e6093a8 | 1257 | int __init create_checkpoint_caches(void); |
39a53e0c JK |
1258 | void destroy_checkpoint_caches(void); |
1259 | ||
1260 | /* | |
1261 | * data.c | |
1262 | */ | |
458e6197 | 1263 | void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int); |
93dfe2ac JK |
1264 | int f2fs_submit_page_bio(struct f2fs_sb_info *, struct page *, block_t, int); |
1265 | void f2fs_submit_page_mbio(struct f2fs_sb_info *, struct page *, block_t, | |
458e6197 | 1266 | struct f2fs_io_info *); |
39a53e0c | 1267 | int reserve_new_block(struct dnode_of_data *); |
b600965c | 1268 | int f2fs_reserve_block(struct dnode_of_data *, pgoff_t); |
39a53e0c | 1269 | void update_extent_cache(block_t, struct dnode_of_data *); |
c718379b | 1270 | struct page *find_data_page(struct inode *, pgoff_t, bool); |
39a53e0c | 1271 | struct page *get_lock_data_page(struct inode *, pgoff_t); |
64aa7ed9 | 1272 | struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |
458e6197 | 1273 | int do_write_data_page(struct page *, struct f2fs_io_info *); |
9ab70134 | 1274 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64); |
39a53e0c JK |
1275 | |
1276 | /* | |
1277 | * gc.c | |
1278 | */ | |
1279 | int start_gc_thread(struct f2fs_sb_info *); | |
1280 | void stop_gc_thread(struct f2fs_sb_info *); | |
de93653f | 1281 | block_t start_bidx_of_node(unsigned int, struct f2fs_inode_info *); |
408e9375 | 1282 | int f2fs_gc(struct f2fs_sb_info *); |
39a53e0c | 1283 | void build_gc_manager(struct f2fs_sb_info *); |
6e6093a8 | 1284 | int __init create_gc_caches(void); |
39a53e0c JK |
1285 | void destroy_gc_caches(void); |
1286 | ||
1287 | /* | |
1288 | * recovery.c | |
1289 | */ | |
6ead1142 | 1290 | int recover_fsync_data(struct f2fs_sb_info *); |
39a53e0c JK |
1291 | bool space_for_roll_forward(struct f2fs_sb_info *); |
1292 | ||
1293 | /* | |
1294 | * debug.c | |
1295 | */ | |
1296 | #ifdef CONFIG_F2FS_STAT_FS | |
1297 | struct f2fs_stat_info { | |
1298 | struct list_head stat_list; | |
1299 | struct f2fs_sb_info *sbi; | |
1300 | struct mutex stat_lock; | |
1301 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; | |
1302 | int main_area_segs, main_area_sections, main_area_zones; | |
1303 | int hit_ext, total_ext; | |
1304 | int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta; | |
1305 | int nats, sits, fnids; | |
1306 | int total_count, utilization; | |
0dbdc2ae | 1307 | int bg_gc, inline_inode; |
39a53e0c JK |
1308 | unsigned int valid_count, valid_node_count, valid_inode_count; |
1309 | unsigned int bimodal, avg_vblocks; | |
1310 | int util_free, util_valid, util_invalid; | |
1311 | int rsvd_segs, overp_segs; | |
1312 | int dirty_count, node_pages, meta_pages; | |
942e0be6 | 1313 | int prefree_count, call_count, cp_count; |
39a53e0c JK |
1314 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
1315 | int tot_blks, data_blks, node_blks; | |
1316 | int curseg[NR_CURSEG_TYPE]; | |
1317 | int cursec[NR_CURSEG_TYPE]; | |
1318 | int curzone[NR_CURSEG_TYPE]; | |
1319 | ||
1320 | unsigned int segment_count[2]; | |
1321 | unsigned int block_count[2]; | |
1322 | unsigned base_mem, cache_mem; | |
1323 | }; | |
1324 | ||
963d4f7d GZ |
1325 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
1326 | { | |
6c311ec6 | 1327 | return (struct f2fs_stat_info *)sbi->stat_info; |
963d4f7d GZ |
1328 | } |
1329 | ||
942e0be6 | 1330 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
dcdfff65 JK |
1331 | #define stat_inc_call_count(si) ((si)->call_count++) |
1332 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) | |
1333 | #define stat_inc_dirty_dir(sbi) ((sbi)->n_dirty_dirs++) | |
1334 | #define stat_dec_dirty_dir(sbi) ((sbi)->n_dirty_dirs--) | |
1335 | #define stat_inc_total_hit(sb) ((F2FS_SB(sb))->total_hit_ext++) | |
1336 | #define stat_inc_read_hit(sb) ((F2FS_SB(sb))->read_hit_ext++) | |
0dbdc2ae JK |
1337 | #define stat_inc_inline_inode(inode) \ |
1338 | do { \ | |
1339 | if (f2fs_has_inline_data(inode)) \ | |
1340 | ((F2FS_SB(inode->i_sb))->inline_inode++); \ | |
1341 | } while (0) | |
1342 | #define stat_dec_inline_inode(inode) \ | |
1343 | do { \ | |
1344 | if (f2fs_has_inline_data(inode)) \ | |
1345 | ((F2FS_SB(inode->i_sb))->inline_inode--); \ | |
1346 | } while (0) | |
1347 | ||
dcdfff65 JK |
1348 | #define stat_inc_seg_type(sbi, curseg) \ |
1349 | ((sbi)->segment_count[(curseg)->alloc_type]++) | |
1350 | #define stat_inc_block_count(sbi, curseg) \ | |
1351 | ((sbi)->block_count[(curseg)->alloc_type]++) | |
39a53e0c JK |
1352 | |
1353 | #define stat_inc_seg_count(sbi, type) \ | |
1354 | do { \ | |
963d4f7d | 1355 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
1356 | (si)->tot_segs++; \ |
1357 | if (type == SUM_TYPE_DATA) \ | |
1358 | si->data_segs++; \ | |
1359 | else \ | |
1360 | si->node_segs++; \ | |
1361 | } while (0) | |
1362 | ||
1363 | #define stat_inc_tot_blk_count(si, blks) \ | |
1364 | (si->tot_blks += (blks)) | |
1365 | ||
1366 | #define stat_inc_data_blk_count(sbi, blks) \ | |
1367 | do { \ | |
963d4f7d | 1368 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
1369 | stat_inc_tot_blk_count(si, blks); \ |
1370 | si->data_blks += (blks); \ | |
1371 | } while (0) | |
1372 | ||
1373 | #define stat_inc_node_blk_count(sbi, blks) \ | |
1374 | do { \ | |
963d4f7d | 1375 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
39a53e0c JK |
1376 | stat_inc_tot_blk_count(si, blks); \ |
1377 | si->node_blks += (blks); \ | |
1378 | } while (0) | |
1379 | ||
1380 | int f2fs_build_stats(struct f2fs_sb_info *); | |
1381 | void f2fs_destroy_stats(struct f2fs_sb_info *); | |
6e6093a8 | 1382 | void __init f2fs_create_root_stats(void); |
4589d25d | 1383 | void f2fs_destroy_root_stats(void); |
39a53e0c | 1384 | #else |
942e0be6 | 1385 | #define stat_inc_cp_count(si) |
39a53e0c | 1386 | #define stat_inc_call_count(si) |
dcdfff65 JK |
1387 | #define stat_inc_bggc_count(si) |
1388 | #define stat_inc_dirty_dir(sbi) | |
1389 | #define stat_dec_dirty_dir(sbi) | |
1390 | #define stat_inc_total_hit(sb) | |
1391 | #define stat_inc_read_hit(sb) | |
0dbdc2ae JK |
1392 | #define stat_inc_inline_inode(inode) |
1393 | #define stat_dec_inline_inode(inode) | |
dcdfff65 JK |
1394 | #define stat_inc_seg_type(sbi, curseg) |
1395 | #define stat_inc_block_count(sbi, curseg) | |
39a53e0c JK |
1396 | #define stat_inc_seg_count(si, type) |
1397 | #define stat_inc_tot_blk_count(si, blks) | |
1398 | #define stat_inc_data_blk_count(si, blks) | |
1399 | #define stat_inc_node_blk_count(sbi, blks) | |
1400 | ||
1401 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } | |
1402 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } | |
6e6093a8 | 1403 | static inline void __init f2fs_create_root_stats(void) { } |
4589d25d | 1404 | static inline void f2fs_destroy_root_stats(void) { } |
39a53e0c JK |
1405 | #endif |
1406 | ||
1407 | extern const struct file_operations f2fs_dir_operations; | |
1408 | extern const struct file_operations f2fs_file_operations; | |
1409 | extern const struct inode_operations f2fs_file_inode_operations; | |
1410 | extern const struct address_space_operations f2fs_dblock_aops; | |
1411 | extern const struct address_space_operations f2fs_node_aops; | |
1412 | extern const struct address_space_operations f2fs_meta_aops; | |
1413 | extern const struct inode_operations f2fs_dir_inode_operations; | |
1414 | extern const struct inode_operations f2fs_symlink_inode_operations; | |
1415 | extern const struct inode_operations f2fs_special_inode_operations; | |
1001b347 | 1416 | |
e18c65b2 HL |
1417 | /* |
1418 | * inline.c | |
1419 | */ | |
e18c65b2 HL |
1420 | bool f2fs_may_inline(struct inode *); |
1421 | int f2fs_read_inline_data(struct inode *, struct page *); | |
9e09fc85 | 1422 | int f2fs_convert_inline_data(struct inode *, pgoff_t); |
e18c65b2 | 1423 | int f2fs_write_inline_data(struct inode *, struct page *, unsigned int); |
8aa6f1c5 | 1424 | void truncate_inline_data(struct inode *, u64); |
1e1bb4ba | 1425 | int recover_inline_data(struct inode *, struct page *); |
39a53e0c | 1426 | #endif |