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0a8165d7 1/*
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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>
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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>
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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
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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); \
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40 } \
41 } while (0)
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42#endif
43
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44#ifdef CONFIG_F2FS_FAULT_INJECTION
45enum {
46 FAULT_KMALLOC,
c41f3cc3 47 FAULT_PAGE_ALLOC,
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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,
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56 FAULT_MAX,
57};
58
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59struct f2fs_fault_info {
60 atomic_t inject_ops;
61 unsigned int inject_rate;
62 unsigned int inject_type;
63};
64
2c63fead 65extern char *fault_name[FAULT_MAX];
68afcf2d 66#define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
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67#endif
68
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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
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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
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89#define F2FS_MOUNT_ADAPTIVE 0x00020000
90#define F2FS_MOUNT_LFS 0x00040000
39a53e0c 91
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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)
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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
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100typedef u32 block_t; /*
101 * should not change u32, since it is the on-disk block
102 * address format, __le32.
103 */
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104typedef u32 nid_t;
105
106struct 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
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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
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120/*
121 * For checkpoint manager
122 */
123enum {
124 NAT_BITMAP,
125 SIT_BITMAP
126};
127
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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))
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138#define BATCHED_TRIM_BLOCKS(sbi) \
139 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
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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
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145struct cp_control {
146 int reason;
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147 __u64 trim_start;
148 __u64 trim_end;
149 __u64 trim_minlen;
150 __u64 trimmed;
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151};
152
662befda 153/*
81c1a0f1 154 * For CP/NAT/SIT/SSA readahead
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155 */
156enum {
157 META_CP,
158 META_NAT,
81c1a0f1 159 META_SIT,
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160 META_SSA,
161 META_POR,
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162};
163
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164/* for the list of ino */
165enum {
166 ORPHAN_INO, /* for orphan ino list */
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167 APPEND_INO, /* for append ino list */
168 UPDATE_INO, /* for update ino list */
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169 MAX_INO_ENTRY, /* max. list */
170};
171
172struct ino_entry {
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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 178struct inode_entry {
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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 */
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184struct discard_entry {
185 struct list_head list; /* list head */
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186 block_t start_blkaddr; /* start blockaddr of current segment */
187 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
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188};
189
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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
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195enum {
196 D_PREP,
197 D_SUBMIT,
198 D_DONE,
199};
200
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201struct 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 207struct discard_cmd {
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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 };
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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 */
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224};
225
0b54fb84 226struct 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 */
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231 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
232 struct mutex cmd_lock;
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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 */
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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 */
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240};
241
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242/* for the list of fsync inodes, used only during recovery */
243struct fsync_inode_entry {
244 struct list_head list; /* list head */
245 struct inode *inode; /* vfs inode pointer */
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246 block_t blkaddr; /* block address locating the last fsync */
247 block_t last_dentry; /* block address locating the last dentry */
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248};
249
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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
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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
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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 261static 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);
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266 return before;
267}
268
dfc08a12 269static 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);
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274 return before;
275}
276
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277static inline bool __has_cursum_space(struct f2fs_journal *journal,
278 int size, int type)
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279{
280 if (type == NAT_JOURNAL)
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281 return size <= MAX_NAT_JENTRIES(journal);
282 return size <= MAX_SIT_JENTRIES(journal);
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283}
284
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285/*
286 * ioctl commands
287 */
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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
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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)
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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)
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300#define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
301 struct f2fs_defragment)
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302#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
303 struct f2fs_move_range)
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304#define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
305 struct f2fs_flush_device)
e9750824 306
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307#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
308#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
309#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
f424f664 310
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311/*
312 * should be same as XFS_IOC_GOINGDOWN.
313 * Flags for going down operation used by FS_IOC_GOINGDOWN
314 */
315#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
316#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
317#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
318#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
c912a829 319#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
1abff93d 320
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321#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
322/*
323 * ioctl commands in 32 bit emulation
324 */
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325#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
326#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
327#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
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328#endif
329
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330struct f2fs_defragment {
331 u64 start;
332 u64 len;
333};
334
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335struct f2fs_move_range {
336 u32 dst_fd; /* destination fd */
337 u64 pos_in; /* start position in src_fd */
338 u64 pos_out; /* start position in dst_fd */
339 u64 len; /* size to move */
340};
341
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342struct f2fs_flush_device {
343 u32 dev_num; /* device number to flush */
344 u32 segments; /* # of segments to flush */
345};
346
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347/*
348 * For INODE and NODE manager
349 */
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350/* for directory operations */
351struct f2fs_dentry_ptr {
d8c6822a 352 struct inode *inode;
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353 const void *bitmap;
354 struct f2fs_dir_entry *dentry;
355 __u8 (*filename)[F2FS_SLOT_LEN];
356 int max;
357};
358
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359static inline void make_dentry_ptr_block(struct inode *inode,
360 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
7b3cd7d6 361{
d8c6822a 362 d->inode = inode;
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363 d->max = NR_DENTRY_IN_BLOCK;
364 d->bitmap = &t->dentry_bitmap;
365 d->dentry = t->dentry;
366 d->filename = t->filename;
367}
d8c6822a 368
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369static inline void make_dentry_ptr_inline(struct inode *inode,
370 struct f2fs_dentry_ptr *d, struct f2fs_inline_dentry *t)
371{
372 d->inode = inode;
373 d->max = NR_INLINE_DENTRY;
374 d->bitmap = &t->dentry_bitmap;
375 d->dentry = t->dentry;
376 d->filename = t->filename;
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377}
378
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379/*
380 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
381 * as its node offset to distinguish from index node blocks.
382 * But some bits are used to mark the node block.
383 */
384#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
385 >> OFFSET_BIT_SHIFT)
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386enum {
387 ALLOC_NODE, /* allocate a new node page if needed */
388 LOOKUP_NODE, /* look up a node without readahead */
389 LOOKUP_NODE_RA, /*
390 * look up a node with readahead called
4f4124d0 391 * by get_data_block.
39a53e0c 392 */
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393};
394
a6db67f0 395#define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
39a53e0c 396
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397#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
398
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399/* vector size for gang look-up from extent cache that consists of radix tree */
400#define EXT_TREE_VEC_SIZE 64
401
39a53e0c 402/* for in-memory extent cache entry */
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403#define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
404
405/* number of extent info in extent cache we try to shrink */
406#define EXTENT_CACHE_SHRINK_NUMBER 128
c11abd1a 407
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408struct rb_entry {
409 struct rb_node rb_node; /* rb node located in rb-tree */
410 unsigned int ofs; /* start offset of the entry */
411 unsigned int len; /* length of the entry */
412};
413
39a53e0c 414struct extent_info {
13054c54 415 unsigned int fofs; /* start offset in a file */
13054c54 416 unsigned int len; /* length of the extent */
54c2258c 417 u32 blk; /* start block address of the extent */
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418};
419
420struct extent_node {
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421 struct rb_node rb_node;
422 union {
423 struct {
424 unsigned int fofs;
425 unsigned int len;
426 u32 blk;
427 };
428 struct extent_info ei; /* extent info */
429
430 };
13054c54 431 struct list_head list; /* node in global extent list of sbi */
201ef5e0 432 struct extent_tree *et; /* extent tree pointer */
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433};
434
435struct extent_tree {
436 nid_t ino; /* inode number */
437 struct rb_root root; /* root of extent info rb-tree */
62c8af65 438 struct extent_node *cached_en; /* recently accessed extent node */
3e72f721 439 struct extent_info largest; /* largested extent info */
137d09f0 440 struct list_head list; /* to be used by sbi->zombie_list */
13054c54 441 rwlock_t lock; /* protect extent info rb-tree */
68e35385 442 atomic_t node_cnt; /* # of extent node in rb-tree*/
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443};
444
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445/*
446 * This structure is taken from ext4_map_blocks.
447 *
448 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
449 */
450#define F2FS_MAP_NEW (1 << BH_New)
451#define F2FS_MAP_MAPPED (1 << BH_Mapped)
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452#define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
453#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
454 F2FS_MAP_UNWRITTEN)
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455
456struct f2fs_map_blocks {
457 block_t m_pblk;
458 block_t m_lblk;
459 unsigned int m_len;
460 unsigned int m_flags;
da85985c 461 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
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462};
463
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464/* for flag in get_data_block */
465#define F2FS_GET_BLOCK_READ 0
466#define F2FS_GET_BLOCK_DIO 1
467#define F2FS_GET_BLOCK_FIEMAP 2
468#define F2FS_GET_BLOCK_BMAP 3
b439b103 469#define F2FS_GET_BLOCK_PRE_DIO 4
24b84912 470#define F2FS_GET_BLOCK_PRE_AIO 5
e2b4e2bc 471
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472/*
473 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
474 */
475#define FADVISE_COLD_BIT 0x01
354a3399 476#define FADVISE_LOST_PINO_BIT 0x02
cde4de12 477#define FADVISE_ENCRYPT_BIT 0x04
e7d55452 478#define FADVISE_ENC_NAME_BIT 0x08
26787236 479#define FADVISE_KEEP_SIZE_BIT 0x10
39a53e0c 480
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481#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
482#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
483#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
484#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
485#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
486#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
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487#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
488#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
489#define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
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490#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
491#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
26787236
JK
492#define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
493#define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
cde4de12 494
ab9fa662
JK
495#define DEF_DIR_LEVEL 0
496
39a53e0c
JK
497struct f2fs_inode_info {
498 struct inode vfs_inode; /* serve a vfs inode */
499 unsigned long i_flags; /* keep an inode flags for ioctl */
500 unsigned char i_advise; /* use to give file attribute hints */
38431545 501 unsigned char i_dir_level; /* use for dentry level for large dir */
39a53e0c 502 unsigned int i_current_depth; /* use only in directory structure */
6666e6aa 503 unsigned int i_pino; /* parent inode number */
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JK
504 umode_t i_acl_mode; /* keep file acl mode temporarily */
505
506 /* Use below internally in f2fs*/
507 unsigned long flags; /* use to pass per-file flags */
d928bfbf 508 struct rw_semaphore i_sem; /* protect fi info */
204706c7 509 atomic_t dirty_pages; /* # of dirty pages */
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JK
510 f2fs_hash_t chash; /* hash value of given file name */
511 unsigned int clevel; /* maximum level of given file name */
88c5c13a 512 struct task_struct *task; /* lookup and create consistency */
39a53e0c 513 nid_t i_xattr_nid; /* node id that contains xattrs */
26de9b11 514 loff_t last_disk_size; /* lastly written file size */
88b88a66 515
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516 struct list_head dirty_list; /* dirty list for dirs and files */
517 struct list_head gdirty_list; /* linked in global dirty list */
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518 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
519 struct mutex inmem_lock; /* lock for inmemory pages */
3e72f721 520 struct extent_tree *extent_tree; /* cached extent_tree entry */
82e0a5aa 521 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
39a53e0c
JK
522};
523
524static inline void get_extent_info(struct extent_info *ext,
bd933d4f 525 struct f2fs_extent *i_ext)
39a53e0c 526{
bd933d4f
CY
527 ext->fofs = le32_to_cpu(i_ext->fofs);
528 ext->blk = le32_to_cpu(i_ext->blk);
529 ext->len = le32_to_cpu(i_ext->len);
39a53e0c
JK
530}
531
532static inline void set_raw_extent(struct extent_info *ext,
533 struct f2fs_extent *i_ext)
534{
39a53e0c 535 i_ext->fofs = cpu_to_le32(ext->fofs);
4d0b0bd4 536 i_ext->blk = cpu_to_le32(ext->blk);
39a53e0c 537 i_ext->len = cpu_to_le32(ext->len);
39a53e0c
JK
538}
539
429511cd
CY
540static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
541 u32 blk, unsigned int len)
542{
543 ei->fofs = fofs;
544 ei->blk = blk;
545 ei->len = len;
546}
547
004b6862
CY
548static inline bool __is_discard_mergeable(struct discard_info *back,
549 struct discard_info *front)
550{
551 return back->lstart + back->len == front->lstart;
552}
553
554static inline bool __is_discard_back_mergeable(struct discard_info *cur,
555 struct discard_info *back)
556{
557 return __is_discard_mergeable(back, cur);
558}
559
560static inline bool __is_discard_front_mergeable(struct discard_info *cur,
561 struct discard_info *front)
562{
563 return __is_discard_mergeable(cur, front);
564}
565
429511cd
CY
566static inline bool __is_extent_mergeable(struct extent_info *back,
567 struct extent_info *front)
568{
569 return (back->fofs + back->len == front->fofs &&
570 back->blk + back->len == front->blk);
571}
572
573static inline bool __is_back_mergeable(struct extent_info *cur,
574 struct extent_info *back)
575{
576 return __is_extent_mergeable(back, cur);
577}
578
579static inline bool __is_front_mergeable(struct extent_info *cur,
580 struct extent_info *front)
581{
582 return __is_extent_mergeable(cur, front);
583}
584
cac5a3d8 585extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
205b9822
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586static inline void __try_update_largest_extent(struct inode *inode,
587 struct extent_tree *et, struct extent_node *en)
4abd3f5a 588{
205b9822 589 if (en->ei.len > et->largest.len) {
4abd3f5a 590 et->largest = en->ei;
7c45729a 591 f2fs_mark_inode_dirty_sync(inode, true);
205b9822 592 }
4abd3f5a
CY
593}
594
b8559dc2
CY
595enum nid_list {
596 FREE_NID_LIST,
597 ALLOC_NID_LIST,
598 MAX_NID_LIST,
599};
600
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601struct f2fs_nm_info {
602 block_t nat_blkaddr; /* base disk address of NAT */
603 nid_t max_nid; /* maximum possible node ids */
04d47e67 604 nid_t available_nids; /* # of available node ids */
39a53e0c 605 nid_t next_scan_nid; /* the next nid to be scanned */
cdfc41c1 606 unsigned int ram_thresh; /* control the memory footprint */
ea1a29a0 607 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
2304cb0c 608 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
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609
610 /* NAT cache management */
611 struct radix_tree_root nat_root;/* root of the nat entry cache */
309cc2b6 612 struct radix_tree_root nat_set_root;/* root of the nat set cache */
b873b798 613 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
39a53e0c 614 struct list_head nat_entries; /* cached nat entry list (clean) */
309cc2b6 615 unsigned int nat_cnt; /* the # of cached nat entries */
aec71382 616 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
22ad0b6a 617 unsigned int nat_blocks; /* # of nat blocks */
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618
619 /* free node ids management */
8a7ed66a 620 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
b8559dc2
CY
621 struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */
622 unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */
623 spinlock_t nid_list_lock; /* protect nid lists ops */
39a53e0c 624 struct mutex build_lock; /* lock for build free nids */
4ac91242
CY
625 unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE];
626 unsigned char *nat_block_bitmap;
586d1492 627 unsigned short *free_nid_count; /* free nid count of NAT block */
39a53e0c
JK
628
629 /* for checkpoint */
630 char *nat_bitmap; /* NAT bitmap pointer */
22ad0b6a
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631
632 unsigned int nat_bits_blocks; /* # of nat bits blocks */
633 unsigned char *nat_bits; /* NAT bits blocks */
634 unsigned char *full_nat_bits; /* full NAT pages */
635 unsigned char *empty_nat_bits; /* empty NAT pages */
599a09b2
CY
636#ifdef CONFIG_F2FS_CHECK_FS
637 char *nat_bitmap_mir; /* NAT bitmap mirror */
638#endif
39a53e0c
JK
639 int bitmap_size; /* bitmap size */
640};
641
642/*
643 * this structure is used as one of function parameters.
644 * all the information are dedicated to a given direct node block determined
645 * by the data offset in a file.
646 */
647struct dnode_of_data {
648 struct inode *inode; /* vfs inode pointer */
649 struct page *inode_page; /* its inode page, NULL is possible */
650 struct page *node_page; /* cached direct node page */
651 nid_t nid; /* node id of the direct node block */
652 unsigned int ofs_in_node; /* data offset in the node page */
653 bool inode_page_locked; /* inode page is locked or not */
93bae099 654 bool node_changed; /* is node block changed */
3cf45747
CY
655 char cur_level; /* level of hole node page */
656 char max_level; /* level of current page located */
39a53e0c
JK
657 block_t data_blkaddr; /* block address of the node block */
658};
659
660static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
661 struct page *ipage, struct page *npage, nid_t nid)
662{
d66d1f76 663 memset(dn, 0, sizeof(*dn));
39a53e0c
JK
664 dn->inode = inode;
665 dn->inode_page = ipage;
666 dn->node_page = npage;
667 dn->nid = nid;
39a53e0c
JK
668}
669
670/*
671 * For SIT manager
672 *
673 * By default, there are 6 active log areas across the whole main area.
674 * When considering hot and cold data separation to reduce cleaning overhead,
675 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
676 * respectively.
677 * In the current design, you should not change the numbers intentionally.
678 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
679 * logs individually according to the underlying devices. (default: 6)
680 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
681 * data and 8 for node logs.
682 */
683#define NR_CURSEG_DATA_TYPE (3)
684#define NR_CURSEG_NODE_TYPE (3)
685#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
686
687enum {
688 CURSEG_HOT_DATA = 0, /* directory entry blocks */
689 CURSEG_WARM_DATA, /* data blocks */
690 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
691 CURSEG_HOT_NODE, /* direct node blocks of directory files */
692 CURSEG_WARM_NODE, /* direct node blocks of normal files */
693 CURSEG_COLD_NODE, /* indirect node blocks */
38aa0889 694 NO_CHECK_TYPE,
39a53e0c
JK
695};
696
6b4afdd7 697struct flush_cmd {
6b4afdd7 698 struct completion wait;
721bd4d5 699 struct llist_node llnode;
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JK
700 int ret;
701};
702
a688b9d9
GZ
703struct flush_cmd_control {
704 struct task_struct *f2fs_issue_flush; /* flush thread */
705 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
8b8dd65f
CY
706 atomic_t issued_flush; /* # of issued flushes */
707 atomic_t issing_flush; /* # of issing flushes */
721bd4d5
GZ
708 struct llist_head issue_list; /* list for command issue */
709 struct llist_node *dispatch_list; /* list for command dispatch */
a688b9d9
GZ
710};
711
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712struct f2fs_sm_info {
713 struct sit_info *sit_info; /* whole segment information */
714 struct free_segmap_info *free_info; /* free segment information */
715 struct dirty_seglist_info *dirty_info; /* dirty segment information */
716 struct curseg_info *curseg_array; /* active segment information */
717
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718 block_t seg0_blkaddr; /* block address of 0'th segment */
719 block_t main_blkaddr; /* start block address of main area */
720 block_t ssa_blkaddr; /* start block address of SSA area */
721
722 unsigned int segment_count; /* total # of segments */
723 unsigned int main_segments; /* # of segments in main area */
724 unsigned int reserved_segments; /* # of reserved segments */
725 unsigned int ovp_segments; /* # of overprovision segments */
81eb8d6e
JK
726
727 /* a threshold to reclaim prefree segments */
728 unsigned int rec_prefree_segments;
7fd9e544 729
bba681cb
JK
730 /* for batched trimming */
731 unsigned int trim_sections; /* # of sections to trim */
732
184a5cd2
CY
733 struct list_head sit_entry_set; /* sit entry set list */
734
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JK
735 unsigned int ipu_policy; /* in-place-update policy */
736 unsigned int min_ipu_util; /* in-place-update threshold */
c1ce1b02 737 unsigned int min_fsync_blocks; /* threshold for fsync */
ef095d19 738 unsigned int min_hot_blocks; /* threshold for hot block allocation */
6b4afdd7
JK
739
740 /* for flush command control */
b01a9201 741 struct flush_cmd_control *fcc_info;
a688b9d9 742
0b54fb84
JK
743 /* for discard command control */
744 struct discard_cmd_control *dcc_info;
39a53e0c
JK
745};
746
39a53e0c
JK
747/*
748 * For superblock
749 */
750/*
751 * COUNT_TYPE for monitoring
752 *
753 * f2fs monitors the number of several block types such as on-writeback,
754 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
755 */
36951b38 756#define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
39a53e0c 757enum count_type {
39a53e0c 758 F2FS_DIRTY_DENTS,
c227f912 759 F2FS_DIRTY_DATA,
39a53e0c
JK
760 F2FS_DIRTY_NODES,
761 F2FS_DIRTY_META,
8dcf2ff7 762 F2FS_INMEM_PAGES,
0f18b462 763 F2FS_DIRTY_IMETA,
36951b38
CY
764 F2FS_WB_CP_DATA,
765 F2FS_WB_DATA,
39a53e0c
JK
766 NR_COUNT_TYPE,
767};
768
39a53e0c 769/*
e1c42045 770 * The below are the page types of bios used in submit_bio().
39a53e0c
JK
771 * The available types are:
772 * DATA User data pages. It operates as async mode.
773 * NODE Node pages. It operates as async mode.
774 * META FS metadata pages such as SIT, NAT, CP.
775 * NR_PAGE_TYPE The number of page types.
776 * META_FLUSH Make sure the previous pages are written
777 * with waiting the bio's completion
778 * ... Only can be used with META.
779 */
7d5e5109 780#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
39a53e0c
JK
781enum page_type {
782 DATA,
783 NODE,
784 META,
785 NR_PAGE_TYPE,
786 META_FLUSH,
8ce67cb0
JK
787 INMEM, /* the below types are used by tracepoints only. */
788 INMEM_DROP,
8c242db9 789 INMEM_INVALIDATE,
28bc106b 790 INMEM_REVOKE,
8ce67cb0
JK
791 IPU,
792 OPU,
39a53e0c
JK
793};
794
458e6197 795struct f2fs_io_info {
05ca3632 796 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
7e8f2308 797 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
04d328de 798 int op; /* contains REQ_OP_ */
ef295ecf 799 int op_flags; /* req_flag_bits */
7a9d7548 800 block_t new_blkaddr; /* new block address to be written */
28bc106b 801 block_t old_blkaddr; /* old block address before Cow */
05ca3632 802 struct page *page; /* page to be written */
4375a336 803 struct page *encrypted_page; /* encrypted page */
d68f735b 804 bool submitted; /* indicate IO submission */
279d6df2 805 bool need_lock; /* indicate we need to lock cp_rwsem */
458e6197
JK
806};
807
68afcf2d 808#define is_read_io(rw) ((rw) == READ)
1ff7bd3b 809struct f2fs_bio_info {
458e6197 810 struct f2fs_sb_info *sbi; /* f2fs superblock */
1ff7bd3b
JK
811 struct bio *bio; /* bios to merge */
812 sector_t last_block_in_bio; /* last block number */
458e6197 813 struct f2fs_io_info fio; /* store buffered io info. */
df0f8dc0 814 struct rw_semaphore io_rwsem; /* blocking op for bio */
1ff7bd3b
JK
815};
816
3c62be17
JK
817#define FDEV(i) (sbi->devs[i])
818#define RDEV(i) (raw_super->devs[i])
819struct f2fs_dev_info {
820 struct block_device *bdev;
821 char path[MAX_PATH_LEN];
822 unsigned int total_segments;
823 block_t start_blk;
824 block_t end_blk;
825#ifdef CONFIG_BLK_DEV_ZONED
826 unsigned int nr_blkz; /* Total number of zones */
827 u8 *blkz_type; /* Array of zones type */
828#endif
829};
830
c227f912
CY
831enum inode_type {
832 DIR_INODE, /* for dirty dir inode */
833 FILE_INODE, /* for dirty regular/symlink inode */
0f18b462 834 DIRTY_META, /* for all dirtied inode metadata */
c227f912
CY
835 NR_INODE_TYPE,
836};
837
67298804
CY
838/* for inner inode cache management */
839struct inode_management {
840 struct radix_tree_root ino_root; /* ino entry array */
841 spinlock_t ino_lock; /* for ino entry lock */
842 struct list_head ino_list; /* inode list head */
843 unsigned long ino_num; /* number of entries */
844};
845
caf0047e
CY
846/* For s_flag in struct f2fs_sb_info */
847enum {
848 SBI_IS_DIRTY, /* dirty flag for checkpoint */
849 SBI_IS_CLOSE, /* specify unmounting */
850 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
851 SBI_POR_DOING, /* recovery is doing or not */
df728b0f 852 SBI_NEED_SB_WRITE, /* need to recover superblock */
bbf156f7 853 SBI_NEED_CP, /* need to checkpoint */
caf0047e
CY
854};
855
6beceb54
JK
856enum {
857 CP_TIME,
d0239e1b 858 REQ_TIME,
6beceb54
JK
859 MAX_TIME,
860};
861
39a53e0c
JK
862struct f2fs_sb_info {
863 struct super_block *sb; /* pointer to VFS super block */
5e176d54 864 struct proc_dir_entry *s_proc; /* proc entry */
39a53e0c 865 struct f2fs_super_block *raw_super; /* raw super block pointer */
e8240f65 866 int valid_super_block; /* valid super block no */
fadb2fb8 867 unsigned long s_flag; /* flags for sbi */
39a53e0c 868
178053e2 869#ifdef CONFIG_BLK_DEV_ZONED
178053e2
DLM
870 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
871 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
178053e2
DLM
872#endif
873
39a53e0c
JK
874 /* for node-related operations */
875 struct f2fs_nm_info *nm_info; /* node manager */
876 struct inode *node_inode; /* cache node blocks */
877
878 /* for segment-related operations */
879 struct f2fs_sm_info *sm_info; /* segment manager */
1ff7bd3b
JK
880
881 /* for bio operations */
924b720b 882 struct f2fs_bio_info read_io; /* for read bios */
1ff7bd3b 883 struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
7dfeaa32 884 struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */
0a595eba
JK
885 int write_io_size_bits; /* Write IO size bits */
886 mempool_t *write_io_dummy; /* Dummy pages */
39a53e0c
JK
887
888 /* for checkpoint */
889 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
8508e44a 890 int cur_cp_pack; /* remain current cp pack */
aaec2b1d 891 spinlock_t cp_lock; /* for flag in ckpt */
39a53e0c 892 struct inode *meta_inode; /* cache meta blocks */
39936837 893 struct mutex cp_mutex; /* checkpoint procedure lock */
b873b798 894 struct rw_semaphore cp_rwsem; /* blocking FS operations */
b3582c68 895 struct rw_semaphore node_write; /* locking node writes */
59c9081b 896 struct rw_semaphore node_change; /* locking node change */
fb51b5ef 897 wait_queue_head_t cp_wait;
6beceb54
JK
898 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
899 long interval_time[MAX_TIME]; /* to store thresholds */
39a53e0c 900
67298804 901 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
6451e041
JK
902
903 /* for orphan inode, use 0'th array */
0d47c1ad 904 unsigned int max_orphans; /* max orphan inodes */
39a53e0c 905
c227f912
CY
906 /* for inode management */
907 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
908 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
39a53e0c 909
13054c54
CY
910 /* for extent tree cache */
911 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
5e8256ac 912 struct mutex extent_tree_lock; /* locking extent radix tree */
13054c54
CY
913 struct list_head extent_list; /* lru list for shrinker */
914 spinlock_t extent_lock; /* locking extent lru list */
7441ccef 915 atomic_t total_ext_tree; /* extent tree count */
137d09f0 916 struct list_head zombie_list; /* extent zombie tree list */
74fd8d99 917 atomic_t total_zombie_tree; /* extent zombie tree count */
13054c54
CY
918 atomic_t total_ext_node; /* extent info count */
919
e1c42045 920 /* basic filesystem units */
39a53e0c
JK
921 unsigned int log_sectors_per_block; /* log2 sectors per block */
922 unsigned int log_blocksize; /* log2 block size */
923 unsigned int blocksize; /* block size */
924 unsigned int root_ino_num; /* root inode number*/
925 unsigned int node_ino_num; /* node inode number*/
926 unsigned int meta_ino_num; /* meta inode number*/
927 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
928 unsigned int blocks_per_seg; /* blocks per segment */
929 unsigned int segs_per_sec; /* segments per section */
930 unsigned int secs_per_zone; /* sections per zone */
931 unsigned int total_sections; /* total section count */
932 unsigned int total_node_count; /* total node block count */
933 unsigned int total_valid_node_count; /* valid node block count */
e0afc4d6 934 loff_t max_file_blocks; /* max block index of file */
39a53e0c 935 int active_logs; /* # of active logs */
ab9fa662 936 int dir_level; /* directory level */
39a53e0c
JK
937
938 block_t user_block_count; /* # of user blocks */
939 block_t total_valid_block_count; /* # of valid blocks */
a66cdd98 940 block_t discard_blks; /* discard command candidats */
39a53e0c
JK
941 block_t last_valid_block_count; /* for recovery */
942 u32 s_next_generation; /* for NFS support */
523be8a6
JK
943
944 /* # of pages, see count_type */
35782b23 945 atomic_t nr_pages[NR_COUNT_TYPE];
41382ec4
JK
946 /* # of allocated blocks */
947 struct percpu_counter alloc_valid_block_count;
39a53e0c 948
687de7f1
JK
949 /* writeback control */
950 atomic_t wb_sync_req; /* count # of WB_SYNC threads */
951
513c5f37
JK
952 /* valid inode count */
953 struct percpu_counter total_valid_inode_count;
954
39a53e0c
JK
955 struct f2fs_mount_info mount_opt; /* mount options */
956
957 /* for cleaning operations */
958 struct mutex gc_mutex; /* mutex for GC */
959 struct f2fs_gc_kthread *gc_thread; /* GC thread */
5ec4e49f 960 unsigned int cur_victim_sec; /* current victim section num */
39a53e0c 961
e93b9865
HP
962 /* threshold for converting bg victims for fg */
963 u64 fggc_threshold;
964
b1c57c1c
JK
965 /* maximum # of trials to find a victim segment for SSR and GC */
966 unsigned int max_victim_search;
967
39a53e0c
JK
968 /*
969 * for stat information.
970 * one is for the LFS mode, and the other is for the SSR mode.
971 */
35b09d82 972#ifdef CONFIG_F2FS_STAT_FS
39a53e0c
JK
973 struct f2fs_stat_info *stat_info; /* FS status information */
974 unsigned int segment_count[2]; /* # of allocated segments */
975 unsigned int block_count[2]; /* # of allocated blocks */
b9a2c252 976 atomic_t inplace_count; /* # of inplace update */
5b7ee374
CY
977 atomic64_t total_hit_ext; /* # of lookup extent cache */
978 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
979 atomic64_t read_hit_largest; /* # of hit largest extent node */
980 atomic64_t read_hit_cached; /* # of hit cached extent node */
d5e8f6c9 981 atomic_t inline_xattr; /* # of inline_xattr inodes */
03e14d52
CY
982 atomic_t inline_inode; /* # of inline_data inodes */
983 atomic_t inline_dir; /* # of inline_dentry inodes */
26a28a0c 984 atomic_t aw_cnt; /* # of atomic writes */
648d50ba 985 atomic_t vw_cnt; /* # of volatile writes */
26a28a0c 986 atomic_t max_aw_cnt; /* max # of atomic writes */
648d50ba 987 atomic_t max_vw_cnt; /* max # of volatile writes */
39a53e0c 988 int bg_gc; /* background gc calls */
33fbd510 989 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
35b09d82 990#endif
39a53e0c 991 spinlock_t stat_lock; /* lock for stat operations */
b59d0bae
NJ
992
993 /* For sysfs suppport */
994 struct kobject s_kobj;
995 struct completion s_kobj_unregister;
2658e50d
JK
996
997 /* For shrinker support */
998 struct list_head s_list;
3c62be17
JK
999 int s_ndevs; /* number of devices */
1000 struct f2fs_dev_info *devs; /* for device list */
2658e50d
JK
1001 struct mutex umount_mutex;
1002 unsigned int shrinker_run_no;
8f1dbbbb
SL
1003
1004 /* For write statistics */
1005 u64 sectors_written_start;
1006 u64 kbytes_written;
43b6573b
KM
1007
1008 /* Reference to checksum algorithm driver via cryptoapi */
1009 struct crypto_shash *s_chksum_driver;
1ecc0c5c
CY
1010
1011 /* For fault injection */
1012#ifdef CONFIG_F2FS_FAULT_INJECTION
1013 struct f2fs_fault_info fault_info;
1014#endif
39a53e0c
JK
1015};
1016
1ecc0c5c 1017#ifdef CONFIG_F2FS_FAULT_INJECTION
55523519
CY
1018#define f2fs_show_injection_info(type) \
1019 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1020 KERN_INFO, fault_name[type], \
1021 __func__, __builtin_return_address(0))
1ecc0c5c
CY
1022static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1023{
1024 struct f2fs_fault_info *ffi = &sbi->fault_info;
1025
1026 if (!ffi->inject_rate)
1027 return false;
1028
1029 if (!IS_FAULT_SET(ffi, type))
1030 return false;
1031
1032 atomic_inc(&ffi->inject_ops);
1033 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1034 atomic_set(&ffi->inject_ops, 0);
1ecc0c5c
CY
1035 return true;
1036 }
1037 return false;
1038}
1039#endif
1040
8f1dbbbb
SL
1041/* For write statistics. Suppose sector size is 512 bytes,
1042 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1043 */
1044#define BD_PART_WRITTEN(s) \
68afcf2d
TK
1045(((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1046 (s)->sectors_written_start) >> 1)
8f1dbbbb 1047
6beceb54
JK
1048static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1049{
1050 sbi->last_time[type] = jiffies;
1051}
1052
1053static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1054{
1055 struct timespec ts = {sbi->interval_time[type], 0};
1056 unsigned long interval = timespec_to_jiffies(&ts);
1057
1058 return time_after(jiffies, sbi->last_time[type] + interval);
1059}
1060
d0239e1b
JK
1061static inline bool is_idle(struct f2fs_sb_info *sbi)
1062{
1063 struct block_device *bdev = sbi->sb->s_bdev;
1064 struct request_queue *q = bdev_get_queue(bdev);
1065 struct request_list *rl = &q->root_rl;
1066
1067 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1068 return 0;
1069
1070 return f2fs_time_over(sbi, REQ_TIME);
1071}
1072
39a53e0c
JK
1073/*
1074 * Inline functions
1075 */
43b6573b
KM
1076static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1077 unsigned int length)
1078{
1079 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
1080 u32 *ctx = (u32 *)shash_desc_ctx(shash);
1081 int err;
1082
1083 shash->tfm = sbi->s_chksum_driver;
1084 shash->flags = 0;
1085 *ctx = F2FS_SUPER_MAGIC;
1086
1087 err = crypto_shash_update(shash, address, length);
1088 BUG_ON(err);
1089
1090 return *ctx;
1091}
1092
1093static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1094 void *buf, size_t buf_size)
1095{
1096 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1097}
1098
39a53e0c
JK
1099static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1100{
1101 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1102}
1103
1104static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1105{
1106 return sb->s_fs_info;
1107}
1108
4081363f
JK
1109static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1110{
1111 return F2FS_SB(inode->i_sb);
1112}
1113
1114static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1115{
1116 return F2FS_I_SB(mapping->host);
1117}
1118
1119static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1120{
1121 return F2FS_M_SB(page->mapping);
1122}
1123
39a53e0c
JK
1124static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1125{
1126 return (struct f2fs_super_block *)(sbi->raw_super);
1127}
1128
1129static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1130{
1131 return (struct f2fs_checkpoint *)(sbi->ckpt);
1132}
1133
45590710
GZ
1134static inline struct f2fs_node *F2FS_NODE(struct page *page)
1135{
1136 return (struct f2fs_node *)page_address(page);
1137}
1138
58bfaf44
JK
1139static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1140{
1141 return &((struct f2fs_node *)page_address(page))->i;
1142}
1143
39a53e0c
JK
1144static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1145{
1146 return (struct f2fs_nm_info *)(sbi->nm_info);
1147}
1148
1149static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1150{
1151 return (struct f2fs_sm_info *)(sbi->sm_info);
1152}
1153
1154static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1155{
1156 return (struct sit_info *)(SM_I(sbi)->sit_info);
1157}
1158
1159static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1160{
1161 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1162}
1163
1164static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1165{
1166 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1167}
1168
9df27d98
GZ
1169static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1170{
1171 return sbi->meta_inode->i_mapping;
1172}
1173
4ef51a8f
JK
1174static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1175{
1176 return sbi->node_inode->i_mapping;
1177}
1178
caf0047e
CY
1179static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1180{
fadb2fb8 1181 return test_bit(type, &sbi->s_flag);
caf0047e
CY
1182}
1183
1184static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
39a53e0c 1185{
fadb2fb8 1186 set_bit(type, &sbi->s_flag);
39a53e0c
JK
1187}
1188
caf0047e 1189static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
39a53e0c 1190{
fadb2fb8 1191 clear_bit(type, &sbi->s_flag);
39a53e0c
JK
1192}
1193
d71b5564
JK
1194static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1195{
1196 return le64_to_cpu(cp->checkpoint_ver);
1197}
1198
ced2c7ea
KM
1199static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1200{
1201 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1202 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1203}
1204
aaec2b1d 1205static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
25ca923b
JK
1206{
1207 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
aaec2b1d 1208
25ca923b
JK
1209 return ckpt_flags & f;
1210}
1211
aaec2b1d 1212static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
25ca923b 1213{
aaec2b1d
CY
1214 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1215}
1216
1217static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1218{
1219 unsigned int ckpt_flags;
1220
1221 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
25ca923b
JK
1222 ckpt_flags |= f;
1223 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1224}
1225
aaec2b1d 1226static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
25ca923b 1227{
aaec2b1d
CY
1228 spin_lock(&sbi->cp_lock);
1229 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1230 spin_unlock(&sbi->cp_lock);
1231}
1232
1233static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1234{
1235 unsigned int ckpt_flags;
1236
1237 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
25ca923b
JK
1238 ckpt_flags &= (~f);
1239 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1240}
1241
aaec2b1d
CY
1242static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1243{
1244 spin_lock(&sbi->cp_lock);
1245 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1246 spin_unlock(&sbi->cp_lock);
1247}
1248
22ad0b6a
JK
1249static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1250{
1251 set_sbi_flag(sbi, SBI_NEED_FSCK);
1252
1253 if (lock)
1254 spin_lock(&sbi->cp_lock);
1255 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1256 kfree(NM_I(sbi)->nat_bits);
1257 NM_I(sbi)->nat_bits = NULL;
1258 if (lock)
1259 spin_unlock(&sbi->cp_lock);
1260}
1261
1262static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1263 struct cp_control *cpc)
1264{
1265 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1266
c473f1a9 1267 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
22ad0b6a
JK
1268}
1269
e479556b 1270static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
39936837 1271{
b873b798 1272 down_read(&sbi->cp_rwsem);
39936837
JK
1273}
1274
e479556b 1275static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
39a53e0c 1276{
b873b798 1277 up_read(&sbi->cp_rwsem);
39a53e0c
JK
1278}
1279
e479556b 1280static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
39a53e0c 1281{
b873b798 1282 down_write(&sbi->cp_rwsem);
39936837
JK
1283}
1284
e479556b 1285static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
39936837 1286{
b873b798 1287 up_write(&sbi->cp_rwsem);
39a53e0c
JK
1288}
1289
119ee914
JK
1290static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1291{
1292 int reason = CP_SYNC;
1293
1294 if (test_opt(sbi, FASTBOOT))
1295 reason = CP_FASTBOOT;
1296 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1297 reason = CP_UMOUNT;
1298 return reason;
1299}
1300
1301static inline bool __remain_node_summaries(int reason)
1302{
c473f1a9 1303 return (reason & (CP_UMOUNT | CP_FASTBOOT));
119ee914
JK
1304}
1305
1306static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1307{
aaec2b1d
CY
1308 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1309 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
119ee914
JK
1310}
1311
39a53e0c
JK
1312/*
1313 * Check whether the given nid is within node id range.
1314 */
064e0823 1315static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
39a53e0c 1316{
d6b7d4b3
CY
1317 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1318 return -EINVAL;
cfb271d4 1319 if (unlikely(nid >= NM_I(sbi)->max_nid))
064e0823
NJ
1320 return -EINVAL;
1321 return 0;
39a53e0c
JK
1322}
1323
1324#define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1325
1326/*
1327 * Check whether the inode has blocks or not
1328 */
1329static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1330{
1331 if (F2FS_I(inode)->i_xattr_nid)
6c311ec6 1332 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1;
39a53e0c 1333 else
6c311ec6 1334 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
39a53e0c
JK
1335}
1336
4bc8e9bc
CY
1337static inline bool f2fs_has_xattr_block(unsigned int ofs)
1338{
1339 return ofs == XATTR_NODE_OFFSET;
1340}
1341
8edd03c8 1342static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
39a53e0c 1343static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
46008c6d 1344 struct inode *inode, blkcnt_t *count)
39a53e0c 1345{
dd11a5df 1346 blkcnt_t diff;
39a53e0c 1347
cb78942b 1348#ifdef CONFIG_F2FS_FAULT_INJECTION
55523519
CY
1349 if (time_to_inject(sbi, FAULT_BLOCK)) {
1350 f2fs_show_injection_info(FAULT_BLOCK);
cb78942b 1351 return false;
55523519 1352 }
cb78942b 1353#endif
dd11a5df
JK
1354 /*
1355 * let's increase this in prior to actual block count change in order
1356 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1357 */
1358 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1359
2555a2d5
JK
1360 spin_lock(&sbi->stat_lock);
1361 sbi->total_valid_block_count += (block_t)(*count);
1362 if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) {
dd11a5df
JK
1363 diff = sbi->total_valid_block_count - sbi->user_block_count;
1364 *count -= diff;
2555a2d5 1365 sbi->total_valid_block_count = sbi->user_block_count;
46008c6d
CY
1366 if (!*count) {
1367 spin_unlock(&sbi->stat_lock);
dd11a5df 1368 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
46008c6d
CY
1369 return false;
1370 }
39a53e0c 1371 }
39a53e0c 1372 spin_unlock(&sbi->stat_lock);
41382ec4 1373
2555a2d5 1374 f2fs_i_blocks_write(inode, *count, true);
39a53e0c
JK
1375 return true;
1376}
1377
da19b0dc 1378static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
39a53e0c
JK
1379 struct inode *inode,
1380 blkcnt_t count)
1381{
1382 spin_lock(&sbi->stat_lock);
9850cf4a
JK
1383 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1384 f2fs_bug_on(sbi, inode->i_blocks < count);
39a53e0c
JK
1385 sbi->total_valid_block_count -= (block_t)count;
1386 spin_unlock(&sbi->stat_lock);
2555a2d5 1387 f2fs_i_blocks_write(inode, count, false);
39a53e0c
JK
1388}
1389
1390static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1391{
35782b23 1392 atomic_inc(&sbi->nr_pages[count_type]);
7c4abcbe 1393
36951b38
CY
1394 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1395 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
7c4abcbe
CY
1396 return;
1397
caf0047e 1398 set_sbi_flag(sbi, SBI_IS_DIRTY);
39a53e0c
JK
1399}
1400
a7ffdbe2 1401static inline void inode_inc_dirty_pages(struct inode *inode)
39a53e0c 1402{
204706c7 1403 atomic_inc(&F2FS_I(inode)->dirty_pages);
c227f912
CY
1404 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1405 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
39a53e0c
JK
1406}
1407
1408static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1409{
35782b23 1410 atomic_dec(&sbi->nr_pages[count_type]);
39a53e0c
JK
1411}
1412
a7ffdbe2 1413static inline void inode_dec_dirty_pages(struct inode *inode)
39a53e0c 1414{
5ac9f36f
CY
1415 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1416 !S_ISLNK(inode->i_mode))
1fe54f9d
JK
1417 return;
1418
204706c7 1419 atomic_dec(&F2FS_I(inode)->dirty_pages);
c227f912
CY
1420 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1421 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
39a53e0c
JK
1422}
1423
523be8a6 1424static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
39a53e0c 1425{
35782b23 1426 return atomic_read(&sbi->nr_pages[count_type]);
39a53e0c
JK
1427}
1428
204706c7 1429static inline int get_dirty_pages(struct inode *inode)
f8b2c1f9 1430{
204706c7 1431 return atomic_read(&F2FS_I(inode)->dirty_pages);
f8b2c1f9
JK
1432}
1433
5ac206cf
NJ
1434static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1435{
3519e3f9 1436 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
523be8a6
JK
1437 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1438 sbi->log_blocks_per_seg;
1439
1440 return segs / sbi->segs_per_sec;
5ac206cf
NJ
1441}
1442
39a53e0c
JK
1443static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1444{
8b8343fa 1445 return sbi->total_valid_block_count;
39a53e0c
JK
1446}
1447
f83a2584
YH
1448static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1449{
1450 return sbi->discard_blks;
1451}
1452
39a53e0c
JK
1453static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1454{
1455 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1456
1457 /* return NAT or SIT bitmap */
1458 if (flag == NAT_BITMAP)
1459 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1460 else if (flag == SIT_BITMAP)
1461 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1462
1463 return 0;
1464}
1465
55141486
WL
1466static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1467{
1468 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1469}
1470
39a53e0c
JK
1471static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1472{
1473 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1dbe4152
CL
1474 int offset;
1475
55141486 1476 if (__cp_payload(sbi) > 0) {
1dbe4152
CL
1477 if (flag == NAT_BITMAP)
1478 return &ckpt->sit_nat_version_bitmap;
1479 else
65b85ccc 1480 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1dbe4152
CL
1481 } else {
1482 offset = (flag == NAT_BITMAP) ?
25ca923b 1483 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1dbe4152
CL
1484 return &ckpt->sit_nat_version_bitmap + offset;
1485 }
39a53e0c
JK
1486}
1487
1488static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1489{
8508e44a 1490 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
39a53e0c 1491
8508e44a 1492 if (sbi->cur_cp_pack == 2)
39a53e0c 1493 start_addr += sbi->blocks_per_seg;
8508e44a
JK
1494 return start_addr;
1495}
39a53e0c 1496
8508e44a
JK
1497static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1498{
1499 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
39a53e0c 1500
8508e44a
JK
1501 if (sbi->cur_cp_pack == 1)
1502 start_addr += sbi->blocks_per_seg;
39a53e0c
JK
1503 return start_addr;
1504}
1505
8508e44a
JK
1506static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1507{
1508 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1509}
1510
39a53e0c
JK
1511static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1512{
1513 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1514}
1515
1516static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi,
ef86d709 1517 struct inode *inode)
39a53e0c
JK
1518{
1519 block_t valid_block_count;
1520 unsigned int valid_node_count;
1521
1522 spin_lock(&sbi->stat_lock);
1523
ef86d709 1524 valid_block_count = sbi->total_valid_block_count + 1;
cfb271d4 1525 if (unlikely(valid_block_count > sbi->user_block_count)) {
39a53e0c
JK
1526 spin_unlock(&sbi->stat_lock);
1527 return false;
1528 }
1529
ef86d709 1530 valid_node_count = sbi->total_valid_node_count + 1;
cfb271d4 1531 if (unlikely(valid_node_count > sbi->total_node_count)) {
39a53e0c
JK
1532 spin_unlock(&sbi->stat_lock);
1533 return false;
1534 }
1535
1536 if (inode)
8edd03c8 1537 f2fs_i_blocks_write(inode, 1, true);
ef86d709 1538
ef86d709
GZ
1539 sbi->total_valid_node_count++;
1540 sbi->total_valid_block_count++;
39a53e0c
JK
1541 spin_unlock(&sbi->stat_lock);
1542
41382ec4 1543 percpu_counter_inc(&sbi->alloc_valid_block_count);
39a53e0c
JK
1544 return true;
1545}
1546
1547static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
ef86d709 1548 struct inode *inode)
39a53e0c
JK
1549{
1550 spin_lock(&sbi->stat_lock);
1551
9850cf4a
JK
1552 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1553 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1554 f2fs_bug_on(sbi, !inode->i_blocks);
39a53e0c 1555
8edd03c8 1556 f2fs_i_blocks_write(inode, 1, false);
ef86d709
GZ
1557 sbi->total_valid_node_count--;
1558 sbi->total_valid_block_count--;
39a53e0c
JK
1559
1560 spin_unlock(&sbi->stat_lock);
1561}
1562
1563static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1564{
8b8343fa 1565 return sbi->total_valid_node_count;
39a53e0c
JK
1566}
1567
1568static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1569{
513c5f37 1570 percpu_counter_inc(&sbi->total_valid_inode_count);
39a53e0c
JK
1571}
1572
0e80220a 1573static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
39a53e0c 1574{
513c5f37 1575 percpu_counter_dec(&sbi->total_valid_inode_count);
39a53e0c
JK
1576}
1577
513c5f37 1578static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
39a53e0c 1579{
513c5f37 1580 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
39a53e0c
JK
1581}
1582
a56c7c6f
JK
1583static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1584 pgoff_t index, bool for_write)
1585{
c41f3cc3
JK
1586#ifdef CONFIG_F2FS_FAULT_INJECTION
1587 struct page *page = find_lock_page(mapping, index);
cac5a3d8 1588
c41f3cc3
JK
1589 if (page)
1590 return page;
1591
55523519
CY
1592 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
1593 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
c41f3cc3 1594 return NULL;
55523519 1595 }
c41f3cc3 1596#endif
a56c7c6f
JK
1597 if (!for_write)
1598 return grab_cache_page(mapping, index);
1599 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1600}
1601
6e2c64ad
JK
1602static inline void f2fs_copy_page(struct page *src, struct page *dst)
1603{
1604 char *src_kaddr = kmap(src);
1605 char *dst_kaddr = kmap(dst);
1606
1607 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1608 kunmap(dst);
1609 kunmap(src);
1610}
1611
39a53e0c
JK
1612static inline void f2fs_put_page(struct page *page, int unlock)
1613{
031fa8cc 1614 if (!page)
39a53e0c
JK
1615 return;
1616
1617 if (unlock) {
9850cf4a 1618 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
39a53e0c
JK
1619 unlock_page(page);
1620 }
09cbfeaf 1621 put_page(page);
39a53e0c
JK
1622}
1623
1624static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1625{
1626 if (dn->node_page)
1627 f2fs_put_page(dn->node_page, 1);
1628 if (dn->inode_page && dn->node_page != dn->inode_page)
1629 f2fs_put_page(dn->inode_page, 0);
1630 dn->node_page = NULL;
1631 dn->inode_page = NULL;
1632}
1633
1634static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
e8512d2e 1635 size_t size)
39a53e0c 1636{
e8512d2e 1637 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
39a53e0c
JK
1638}
1639
7bd59381
GZ
1640static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1641 gfp_t flags)
1642{
1643 void *entry;
7bd59381 1644
80c54505
JK
1645 entry = kmem_cache_alloc(cachep, flags);
1646 if (!entry)
1647 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
7bd59381
GZ
1648 return entry;
1649}
1650
740432f8
JK
1651static inline struct bio *f2fs_bio_alloc(int npages)
1652{
1653 struct bio *bio;
1654
1655 /* No failure on bio allocation */
740432f8 1656 bio = bio_alloc(GFP_NOIO, npages);
80c54505
JK
1657 if (!bio)
1658 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
740432f8
JK
1659 return bio;
1660}
1661
9be32d72
JK
1662static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1663 unsigned long index, void *item)
1664{
1665 while (radix_tree_insert(root, index, item))
1666 cond_resched();
1667}
1668
39a53e0c
JK
1669#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1670
1671static inline bool IS_INODE(struct page *page)
1672{
45590710 1673 struct f2fs_node *p = F2FS_NODE(page);
cac5a3d8 1674
39a53e0c
JK
1675 return RAW_IS_INODE(p);
1676}
1677
1678static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1679{
1680 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1681}
1682
1683static inline block_t datablock_addr(struct page *node_page,
1684 unsigned int offset)
1685{
1686 struct f2fs_node *raw_node;
1687 __le32 *addr_array;
cac5a3d8 1688
45590710 1689 raw_node = F2FS_NODE(node_page);
39a53e0c
JK
1690 addr_array = blkaddr_in_node(raw_node);
1691 return le32_to_cpu(addr_array[offset]);
1692}
1693
1694static inline int f2fs_test_bit(unsigned int nr, char *addr)
1695{
1696 int mask;
1697
1698 addr += (nr >> 3);
1699 mask = 1 << (7 - (nr & 0x07));
1700 return mask & *addr;
1701}
1702
a66cdd98
JK
1703static inline void f2fs_set_bit(unsigned int nr, char *addr)
1704{
1705 int mask;
1706
1707 addr += (nr >> 3);
1708 mask = 1 << (7 - (nr & 0x07));
1709 *addr |= mask;
1710}
1711
1712static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1713{
1714 int mask;
1715
1716 addr += (nr >> 3);
1717 mask = 1 << (7 - (nr & 0x07));
1718 *addr &= ~mask;
1719}
1720
52aca074 1721static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
39a53e0c
JK
1722{
1723 int mask;
1724 int ret;
1725
1726 addr += (nr >> 3);
1727 mask = 1 << (7 - (nr & 0x07));
1728 ret = mask & *addr;
1729 *addr |= mask;
1730 return ret;
1731}
1732
52aca074 1733static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
39a53e0c
JK
1734{
1735 int mask;
1736 int ret;
1737
1738 addr += (nr >> 3);
1739 mask = 1 << (7 - (nr & 0x07));
1740 ret = mask & *addr;
1741 *addr &= ~mask;
1742 return ret;
1743}
1744
c6ac4c0e
GZ
1745static inline void f2fs_change_bit(unsigned int nr, char *addr)
1746{
1747 int mask;
1748
1749 addr += (nr >> 3);
1750 mask = 1 << (7 - (nr & 0x07));
1751 *addr ^= mask;
1752}
1753
39a53e0c
JK
1754/* used for f2fs_inode_info->flags */
1755enum {
1756 FI_NEW_INODE, /* indicate newly allocated inode */
b3783873 1757 FI_DIRTY_INODE, /* indicate inode is dirty or not */
26de9b11 1758 FI_AUTO_RECOVER, /* indicate inode is recoverable */
ed57c27f 1759 FI_DIRTY_DIR, /* indicate directory has dirty pages */
39a53e0c
JK
1760 FI_INC_LINK, /* need to increment i_nlink */
1761 FI_ACL_MODE, /* indicate acl mode */
1762 FI_NO_ALLOC, /* should not allocate any blocks */
c9b63bd0 1763 FI_FREE_NID, /* free allocated nide */
c11abd1a 1764 FI_NO_EXTENT, /* not to use the extent cache */
444c580f 1765 FI_INLINE_XATTR, /* used for inline xattr */
1001b347 1766 FI_INLINE_DATA, /* used for inline data*/
34d67deb 1767 FI_INLINE_DENTRY, /* used for inline dentry */
fff04f90
JK
1768 FI_APPEND_WRITE, /* inode has appended data */
1769 FI_UPDATE_WRITE, /* inode has in-place-update data */
88b88a66
JK
1770 FI_NEED_IPU, /* used for ipu per file */
1771 FI_ATOMIC_FILE, /* indicate atomic file */
5fe45743 1772 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
02a1335f 1773 FI_VOLATILE_FILE, /* indicate volatile file */
3c6c2beb 1774 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1e84371f 1775 FI_DROP_CACHE, /* drop dirty page cache */
b3d208f9 1776 FI_DATA_EXIST, /* indicate data exists */
510022a8 1777 FI_INLINE_DOTS, /* indicate inline dot dentries */
d323d005 1778 FI_DO_DEFRAG, /* indicate defragment is running */
c227f912 1779 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
dc91de78 1780 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
ef095d19 1781 FI_HOT_DATA, /* indicate file is hot */
39a53e0c
JK
1782};
1783
205b9822
JK
1784static inline void __mark_inode_dirty_flag(struct inode *inode,
1785 int flag, bool set)
1786{
1787 switch (flag) {
1788 case FI_INLINE_XATTR:
1789 case FI_INLINE_DATA:
1790 case FI_INLINE_DENTRY:
1791 if (set)
1792 return;
1793 case FI_DATA_EXIST:
1794 case FI_INLINE_DOTS:
7c45729a 1795 f2fs_mark_inode_dirty_sync(inode, true);
205b9822
JK
1796 }
1797}
1798
91942321 1799static inline void set_inode_flag(struct inode *inode, int flag)
39a53e0c 1800{
91942321
JK
1801 if (!test_bit(flag, &F2FS_I(inode)->flags))
1802 set_bit(flag, &F2FS_I(inode)->flags);
205b9822 1803 __mark_inode_dirty_flag(inode, flag, true);
39a53e0c
JK
1804}
1805
91942321 1806static inline int is_inode_flag_set(struct inode *inode, int flag)
39a53e0c 1807{
91942321 1808 return test_bit(flag, &F2FS_I(inode)->flags);
39a53e0c
JK
1809}
1810
91942321 1811static inline void clear_inode_flag(struct inode *inode, int flag)
39a53e0c 1812{
91942321
JK
1813 if (test_bit(flag, &F2FS_I(inode)->flags))
1814 clear_bit(flag, &F2FS_I(inode)->flags);
205b9822 1815 __mark_inode_dirty_flag(inode, flag, false);
39a53e0c
JK
1816}
1817
91942321 1818static inline void set_acl_inode(struct inode *inode, umode_t mode)
39a53e0c 1819{
91942321
JK
1820 F2FS_I(inode)->i_acl_mode = mode;
1821 set_inode_flag(inode, FI_ACL_MODE);
7c45729a 1822 f2fs_mark_inode_dirty_sync(inode, false);
39a53e0c
JK
1823}
1824
a1961246 1825static inline void f2fs_i_links_write(struct inode *inode, bool inc)
39a53e0c 1826{
a1961246
JK
1827 if (inc)
1828 inc_nlink(inode);
1829 else
1830 drop_nlink(inode);
7c45729a 1831 f2fs_mark_inode_dirty_sync(inode, true);
a1961246
JK
1832}
1833
8edd03c8
JK
1834static inline void f2fs_i_blocks_write(struct inode *inode,
1835 blkcnt_t diff, bool add)
1836{
26de9b11
JK
1837 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1838 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1839
8edd03c8
JK
1840 inode->i_blocks = add ? inode->i_blocks + diff :
1841 inode->i_blocks - diff;
7c45729a 1842 f2fs_mark_inode_dirty_sync(inode, true);
26de9b11
JK
1843 if (clean || recover)
1844 set_inode_flag(inode, FI_AUTO_RECOVER);
8edd03c8
JK
1845}
1846
fc9581c8
JK
1847static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
1848{
26de9b11
JK
1849 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1850 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1851
fc9581c8
JK
1852 if (i_size_read(inode) == i_size)
1853 return;
1854
1855 i_size_write(inode, i_size);
7c45729a 1856 f2fs_mark_inode_dirty_sync(inode, true);
26de9b11
JK
1857 if (clean || recover)
1858 set_inode_flag(inode, FI_AUTO_RECOVER);
39a53e0c
JK
1859}
1860
205b9822 1861static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
39a53e0c 1862{
205b9822 1863 F2FS_I(inode)->i_current_depth = depth;
7c45729a 1864 f2fs_mark_inode_dirty_sync(inode, true);
39a53e0c
JK
1865}
1866
205b9822 1867static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
444c580f 1868{
205b9822 1869 F2FS_I(inode)->i_xattr_nid = xnid;
7c45729a 1870 f2fs_mark_inode_dirty_sync(inode, true);
205b9822
JK
1871}
1872
1873static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
1874{
1875 F2FS_I(inode)->i_pino = pino;
7c45729a 1876 f2fs_mark_inode_dirty_sync(inode, true);
205b9822
JK
1877}
1878
91942321 1879static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
444c580f 1880{
205b9822
JK
1881 struct f2fs_inode_info *fi = F2FS_I(inode);
1882
444c580f 1883 if (ri->i_inline & F2FS_INLINE_XATTR)
205b9822 1884 set_bit(FI_INLINE_XATTR, &fi->flags);
1001b347 1885 if (ri->i_inline & F2FS_INLINE_DATA)
205b9822 1886 set_bit(FI_INLINE_DATA, &fi->flags);
34d67deb 1887 if (ri->i_inline & F2FS_INLINE_DENTRY)
205b9822 1888 set_bit(FI_INLINE_DENTRY, &fi->flags);
b3d208f9 1889 if (ri->i_inline & F2FS_DATA_EXIST)
205b9822 1890 set_bit(FI_DATA_EXIST, &fi->flags);
510022a8 1891 if (ri->i_inline & F2FS_INLINE_DOTS)
205b9822 1892 set_bit(FI_INLINE_DOTS, &fi->flags);
444c580f
JK
1893}
1894
91942321 1895static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
444c580f
JK
1896{
1897 ri->i_inline = 0;
1898
91942321 1899 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
444c580f 1900 ri->i_inline |= F2FS_INLINE_XATTR;
91942321 1901 if (is_inode_flag_set(inode, FI_INLINE_DATA))
1001b347 1902 ri->i_inline |= F2FS_INLINE_DATA;
91942321 1903 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
34d67deb 1904 ri->i_inline |= F2FS_INLINE_DENTRY;
91942321 1905 if (is_inode_flag_set(inode, FI_DATA_EXIST))
b3d208f9 1906 ri->i_inline |= F2FS_DATA_EXIST;
91942321 1907 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
510022a8 1908 ri->i_inline |= F2FS_INLINE_DOTS;
444c580f
JK
1909}
1910
987c7c31
CY
1911static inline int f2fs_has_inline_xattr(struct inode *inode)
1912{
91942321 1913 return is_inode_flag_set(inode, FI_INLINE_XATTR);
987c7c31
CY
1914}
1915
81ca7350 1916static inline unsigned int addrs_per_inode(struct inode *inode)
de93653f 1917{
81ca7350 1918 if (f2fs_has_inline_xattr(inode))
de93653f
JK
1919 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1920 return DEF_ADDRS_PER_INODE;
1921}
1922
65985d93
JK
1923static inline void *inline_xattr_addr(struct page *page)
1924{
695fd1ed 1925 struct f2fs_inode *ri = F2FS_INODE(page);
cac5a3d8 1926
65985d93
JK
1927 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
1928 F2FS_INLINE_XATTR_ADDRS]);
1929}
1930
1931static inline int inline_xattr_size(struct inode *inode)
1932{
987c7c31 1933 if (f2fs_has_inline_xattr(inode))
65985d93
JK
1934 return F2FS_INLINE_XATTR_ADDRS << 2;
1935 else
1936 return 0;
1937}
1938
0dbdc2ae
JK
1939static inline int f2fs_has_inline_data(struct inode *inode)
1940{
91942321 1941 return is_inode_flag_set(inode, FI_INLINE_DATA);
0dbdc2ae
JK
1942}
1943
b3d208f9
JK
1944static inline int f2fs_exist_data(struct inode *inode)
1945{
91942321 1946 return is_inode_flag_set(inode, FI_DATA_EXIST);
b3d208f9
JK
1947}
1948
510022a8
JK
1949static inline int f2fs_has_inline_dots(struct inode *inode)
1950{
91942321 1951 return is_inode_flag_set(inode, FI_INLINE_DOTS);
510022a8
JK
1952}
1953
88b88a66
JK
1954static inline bool f2fs_is_atomic_file(struct inode *inode)
1955{
91942321 1956 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
88b88a66
JK
1957}
1958
5fe45743
CY
1959static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
1960{
1961 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
1962}
1963
02a1335f
JK
1964static inline bool f2fs_is_volatile_file(struct inode *inode)
1965{
91942321 1966 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
02a1335f
JK
1967}
1968
3c6c2beb
JK
1969static inline bool f2fs_is_first_block_written(struct inode *inode)
1970{
91942321 1971 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3c6c2beb
JK
1972}
1973
1e84371f
JK
1974static inline bool f2fs_is_drop_cache(struct inode *inode)
1975{
91942321 1976 return is_inode_flag_set(inode, FI_DROP_CACHE);
1e84371f
JK
1977}
1978
1001b347
HL
1979static inline void *inline_data_addr(struct page *page)
1980{
695fd1ed 1981 struct f2fs_inode *ri = F2FS_INODE(page);
cac5a3d8 1982
1001b347
HL
1983 return (void *)&(ri->i_addr[1]);
1984}
1985
34d67deb
CY
1986static inline int f2fs_has_inline_dentry(struct inode *inode)
1987{
91942321 1988 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
34d67deb
CY
1989}
1990
9486ba44
JK
1991static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
1992{
1993 if (!f2fs_has_inline_dentry(dir))
1994 kunmap(page);
1995}
1996
b5492af7
JK
1997static inline int is_file(struct inode *inode, int type)
1998{
1999 return F2FS_I(inode)->i_advise & type;
2000}
2001
2002static inline void set_file(struct inode *inode, int type)
2003{
2004 F2FS_I(inode)->i_advise |= type;
7c45729a 2005 f2fs_mark_inode_dirty_sync(inode, true);
b5492af7
JK
2006}
2007
2008static inline void clear_file(struct inode *inode, int type)
2009{
2010 F2FS_I(inode)->i_advise &= ~type;
7c45729a 2011 f2fs_mark_inode_dirty_sync(inode, true);
b5492af7
JK
2012}
2013
26787236
JK
2014static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2015{
2016 if (dsync) {
2017 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2018 bool ret;
2019
2020 spin_lock(&sbi->inode_lock[DIRTY_META]);
2021 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2022 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2023 return ret;
2024 }
2025 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2026 file_keep_isize(inode) ||
2027 i_size_read(inode) & PAGE_MASK)
2028 return false;
2029 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
b5492af7
JK
2030}
2031
77888c1e
JK
2032static inline int f2fs_readonly(struct super_block *sb)
2033{
2034 return sb->s_flags & MS_RDONLY;
2035}
2036
1e968fdf
JK
2037static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2038{
aaec2b1d 2039 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
1e968fdf
JK
2040}
2041
eaa693f4
JK
2042static inline bool is_dot_dotdot(const struct qstr *str)
2043{
2044 if (str->len == 1 && str->name[0] == '.')
2045 return true;
2046
2047 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2048 return true;
2049
2050 return false;
2051}
2052
3e72f721
JK
2053static inline bool f2fs_may_extent_tree(struct inode *inode)
2054{
3e72f721 2055 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
91942321 2056 is_inode_flag_set(inode, FI_NO_EXTENT))
3e72f721
JK
2057 return false;
2058
886f56f9 2059 return S_ISREG(inode->i_mode);
3e72f721
JK
2060}
2061
1ecc0c5c
CY
2062static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2063 size_t size, gfp_t flags)
0414b004 2064{
2c63fead 2065#ifdef CONFIG_F2FS_FAULT_INJECTION
55523519
CY
2066 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2067 f2fs_show_injection_info(FAULT_KMALLOC);
2c63fead 2068 return NULL;
55523519 2069 }
2c63fead 2070#endif
0414b004
JK
2071 return kmalloc(size, flags);
2072}
2073
a6dda0e6 2074#define get_inode_mode(i) \
91942321 2075 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
a6dda0e6
CH
2076 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2077
39a53e0c
JK
2078/*
2079 * file.c
2080 */
cac5a3d8
DS
2081int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2082void truncate_data_blocks(struct dnode_of_data *dn);
2083int truncate_blocks(struct inode *inode, u64 from, bool lock);
2084int f2fs_truncate(struct inode *inode);
a528d35e
DH
2085int f2fs_getattr(const struct path *path, struct kstat *stat,
2086 u32 request_mask, unsigned int flags);
cac5a3d8
DS
2087int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2088int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2089int truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2090long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2091long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
39a53e0c
JK
2092
2093/*
2094 * inode.c
2095 */
cac5a3d8
DS
2096void f2fs_set_inode_flags(struct inode *inode);
2097struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2098struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2099int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2100int update_inode(struct inode *inode, struct page *node_page);
2101int update_inode_page(struct inode *inode);
2102int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2103void f2fs_evict_inode(struct inode *inode);
2104void handle_failed_inode(struct inode *inode);
39a53e0c
JK
2105
2106/*
2107 * namei.c
2108 */
2109struct dentry *f2fs_get_parent(struct dentry *child);
2110
2111/*
2112 * dir.c
2113 */
cac5a3d8
DS
2114void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
2115unsigned char get_de_type(struct f2fs_dir_entry *de);
2116struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
2117 f2fs_hash_t namehash, int *max_slots,
2118 struct f2fs_dentry_ptr *d);
2119int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2120 unsigned int start_pos, struct fscrypt_str *fstr);
2121void do_make_empty_dir(struct inode *inode, struct inode *parent,
2122 struct f2fs_dentry_ptr *d);
2123struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
2124 const struct qstr *new_name,
2125 const struct qstr *orig_name, struct page *dpage);
2126void update_parent_metadata(struct inode *dir, struct inode *inode,
2127 unsigned int current_depth);
2128int room_for_filename(const void *bitmap, int slots, int max_slots);
2129void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2130struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2131 struct fscrypt_name *fname, struct page **res_page);
2132struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2133 const struct qstr *child, struct page **res_page);
2134struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2135ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2136 struct page **page);
2137void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2138 struct page *page, struct inode *inode);
cac5a3d8
DS
2139void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2140 const struct qstr *name, f2fs_hash_t name_hash,
2141 unsigned int bit_pos);
2142int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2143 const struct qstr *orig_name,
2144 struct inode *inode, nid_t ino, umode_t mode);
2145int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname,
2146 struct inode *inode, nid_t ino, umode_t mode);
2147int __f2fs_add_link(struct inode *dir, const struct qstr *name,
2148 struct inode *inode, nid_t ino, umode_t mode);
2149void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2150 struct inode *dir, struct inode *inode);
2151int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2152bool f2fs_empty_dir(struct inode *dir);
39a53e0c 2153
b7f7a5e0
AV
2154static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2155{
2b0143b5 2156 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
510022a8 2157 inode, inode->i_ino, inode->i_mode);
b7f7a5e0
AV
2158}
2159
39a53e0c
JK
2160/*
2161 * super.c
2162 */
cac5a3d8
DS
2163int f2fs_inode_dirtied(struct inode *inode, bool sync);
2164void f2fs_inode_synced(struct inode *inode);
2165int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2166int f2fs_sync_fs(struct super_block *sb, int sync);
a07ef784 2167extern __printf(3, 4)
cac5a3d8 2168void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
984ec63c 2169int sanity_check_ckpt(struct f2fs_sb_info *sbi);
39a53e0c
JK
2170
2171/*
2172 * hash.c
2173 */
6332cd32
JK
2174f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
2175 struct fscrypt_name *fname);
39a53e0c
JK
2176
2177/*
2178 * node.c
2179 */
2180struct dnode_of_data;
2181struct node_info;
2182
cac5a3d8
DS
2183bool available_free_memory(struct f2fs_sb_info *sbi, int type);
2184int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2185bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2186bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2187void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
2188pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2189int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2190int truncate_inode_blocks(struct inode *inode, pgoff_t from);
2191int truncate_xattr_node(struct inode *inode, struct page *page);
2192int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2193int remove_inode_page(struct inode *inode);
2194struct page *new_inode_page(struct inode *inode);
2195struct page *new_node_page(struct dnode_of_data *dn,
2196 unsigned int ofs, struct page *ipage);
2197void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2198struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2199struct page *get_node_page_ra(struct page *parent, int start);
2200void move_node_page(struct page *node_page, int gc_type);
2201int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2202 struct writeback_control *wbc, bool atomic);
2203int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc);
22ad0b6a 2204void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
cac5a3d8
DS
2205bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2206void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2207void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2208int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2209void recover_inline_xattr(struct inode *inode, struct page *page);
d260081c 2210int recover_xattr_data(struct inode *inode, struct page *page,
cac5a3d8
DS
2211 block_t blkaddr);
2212int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2213int restore_node_summary(struct f2fs_sb_info *sbi,
2214 unsigned int segno, struct f2fs_summary_block *sum);
22ad0b6a 2215void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
cac5a3d8
DS
2216int build_node_manager(struct f2fs_sb_info *sbi);
2217void destroy_node_manager(struct f2fs_sb_info *sbi);
6e6093a8 2218int __init create_node_manager_caches(void);
39a53e0c
JK
2219void destroy_node_manager_caches(void);
2220
2221/*
2222 * segment.c
2223 */
cac5a3d8
DS
2224void register_inmem_page(struct inode *inode, struct page *page);
2225void drop_inmem_pages(struct inode *inode);
8c242db9 2226void drop_inmem_page(struct inode *inode, struct page *page);
cac5a3d8
DS
2227int commit_inmem_pages(struct inode *inode);
2228void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2229void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2230int f2fs_issue_flush(struct f2fs_sb_info *sbi);
2231int create_flush_cmd_control(struct f2fs_sb_info *sbi);
2232void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2233void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2234bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2235void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
d431413f 2236void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
cac5a3d8
DS
2237void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2238void release_discard_addrs(struct f2fs_sb_info *sbi);
2239int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2240void allocate_new_segments(struct f2fs_sb_info *sbi);
2241int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2242bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2243struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2244void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr);
2245void write_meta_page(struct f2fs_sb_info *sbi, struct page *page);
2246void write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2247void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio);
d1b3e72d 2248int rewrite_data_page(struct f2fs_io_info *fio);
cac5a3d8
DS
2249void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2250 block_t old_blkaddr, block_t new_blkaddr,
2251 bool recover_curseg, bool recover_newaddr);
2252void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2253 block_t old_addr, block_t new_addr,
2254 unsigned char version, bool recover_curseg,
2255 bool recover_newaddr);
2256void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2257 block_t old_blkaddr, block_t *new_blkaddr,
2258 struct f2fs_summary *sum, int type);
2259void f2fs_wait_on_page_writeback(struct page *page,
2260 enum page_type type, bool ordered);
2261void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi,
2262 block_t blkaddr);
2263void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2264void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2265int lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2266 unsigned int val, int alloc);
2267void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2268int build_segment_manager(struct f2fs_sb_info *sbi);
2269void destroy_segment_manager(struct f2fs_sb_info *sbi);
7fd9e544
JK
2270int __init create_segment_manager_caches(void);
2271void destroy_segment_manager_caches(void);
39a53e0c
JK
2272
2273/*
2274 * checkpoint.c
2275 */
cac5a3d8
DS
2276void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2277struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2278struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2279struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2280bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
2281int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2282 int type, bool sync);
2283void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2284long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2285 long nr_to_write);
2286void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2287void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2288void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2289bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2290int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2291int acquire_orphan_inode(struct f2fs_sb_info *sbi);
2292void release_orphan_inode(struct f2fs_sb_info *sbi);
2293void add_orphan_inode(struct inode *inode);
2294void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2295int recover_orphan_inodes(struct f2fs_sb_info *sbi);
2296int get_valid_checkpoint(struct f2fs_sb_info *sbi);
2297void update_dirty_page(struct inode *inode, struct page *page);
2298void remove_dirty_inode(struct inode *inode);
2299int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2300int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2301void init_ino_entry_info(struct f2fs_sb_info *sbi);
6e6093a8 2302int __init create_checkpoint_caches(void);
39a53e0c
JK
2303void destroy_checkpoint_caches(void);
2304
2305/*
2306 * data.c
2307 */
cac5a3d8
DS
2308void f2fs_submit_merged_bio(struct f2fs_sb_info *sbi, enum page_type type,
2309 int rw);
2310void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *sbi,
942fd319
JK
2311 struct inode *inode, nid_t ino, pgoff_t idx,
2312 enum page_type type, int rw);
cac5a3d8
DS
2313void f2fs_flush_merged_bios(struct f2fs_sb_info *sbi);
2314int f2fs_submit_page_bio(struct f2fs_io_info *fio);
2315int f2fs_submit_page_mbio(struct f2fs_io_info *fio);
2316struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2317 block_t blk_addr, struct bio *bio);
2318int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2319void set_data_blkaddr(struct dnode_of_data *dn);
2320void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2321int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2322int reserve_new_block(struct dnode_of_data *dn);
2323int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2324int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2325int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2326struct page *get_read_data_page(struct inode *inode, pgoff_t index,
2327 int op_flags, bool for_write);
2328struct page *find_data_page(struct inode *inode, pgoff_t index);
2329struct page *get_lock_data_page(struct inode *inode, pgoff_t index,
2330 bool for_write);
2331struct page *get_new_data_page(struct inode *inode,
2332 struct page *ipage, pgoff_t index, bool new_i_size);
2333int do_write_data_page(struct f2fs_io_info *fio);
2334int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2335 int create, int flag);
2336int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2337 u64 start, u64 len);
2338void f2fs_set_page_dirty_nobuffers(struct page *page);
2339void f2fs_invalidate_page(struct page *page, unsigned int offset,
2340 unsigned int length);
2341int f2fs_release_page(struct page *page, gfp_t wait);
5b7a487c 2342#ifdef CONFIG_MIGRATION
cac5a3d8
DS
2343int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2344 struct page *page, enum migrate_mode mode);
5b7a487c 2345#endif
39a53e0c
JK
2346
2347/*
2348 * gc.c
2349 */
cac5a3d8
DS
2350int start_gc_thread(struct f2fs_sb_info *sbi);
2351void stop_gc_thread(struct f2fs_sb_info *sbi);
2352block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
e066b83c
JK
2353int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
2354 unsigned int segno);
cac5a3d8 2355void build_gc_manager(struct f2fs_sb_info *sbi);
39a53e0c
JK
2356
2357/*
2358 * recovery.c
2359 */
cac5a3d8
DS
2360int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
2361bool space_for_roll_forward(struct f2fs_sb_info *sbi);
39a53e0c
JK
2362
2363/*
2364 * debug.c
2365 */
2366#ifdef CONFIG_F2FS_STAT_FS
2367struct f2fs_stat_info {
2368 struct list_head stat_list;
2369 struct f2fs_sb_info *sbi;
39a53e0c
JK
2370 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2371 int main_area_segs, main_area_sections, main_area_zones;
5b7ee374
CY
2372 unsigned long long hit_largest, hit_cached, hit_rbtree;
2373 unsigned long long hit_total, total_ext;
c00ba554 2374 int ext_tree, zombie_tree, ext_node;
35782b23
JK
2375 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2376 int inmem_pages;
0f18b462 2377 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
5b0ef73c
JK
2378 int nats, dirty_nats, sits, dirty_sits;
2379 int free_nids, avail_nids, alloc_nids;
39a53e0c 2380 int total_count, utilization;
8b8dd65f
CY
2381 int bg_gc, nr_wb_cp_data, nr_wb_data;
2382 int nr_flushing, nr_flushed, nr_discarding, nr_discarded;
5f32366a 2383 int nr_discard_cmd;
d84d1cbd 2384 unsigned int undiscard_blks;
a00861db 2385 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
648d50ba 2386 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
f83a2584 2387 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
39a53e0c
JK
2388 unsigned int bimodal, avg_vblocks;
2389 int util_free, util_valid, util_invalid;
2390 int rsvd_segs, overp_segs;
2391 int dirty_count, node_pages, meta_pages;
42190d2a 2392 int prefree_count, call_count, cp_count, bg_cp_count;
39a53e0c 2393 int tot_segs, node_segs, data_segs, free_segs, free_secs;
e1235983 2394 int bg_node_segs, bg_data_segs;
39a53e0c 2395 int tot_blks, data_blks, node_blks;
e1235983 2396 int bg_data_blks, bg_node_blks;
39a53e0c
JK
2397 int curseg[NR_CURSEG_TYPE];
2398 int cursec[NR_CURSEG_TYPE];
2399 int curzone[NR_CURSEG_TYPE];
2400
2401 unsigned int segment_count[2];
2402 unsigned int block_count[2];
b9a2c252 2403 unsigned int inplace_count;
9edcdabf 2404 unsigned long long base_mem, cache_mem, page_mem;
39a53e0c
JK
2405};
2406
963d4f7d
GZ
2407static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2408{
6c311ec6 2409 return (struct f2fs_stat_info *)sbi->stat_info;
963d4f7d
GZ
2410}
2411
942e0be6 2412#define stat_inc_cp_count(si) ((si)->cp_count++)
42190d2a 2413#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
dcdfff65
JK
2414#define stat_inc_call_count(si) ((si)->call_count++)
2415#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
33fbd510
CY
2416#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2417#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
5b7ee374
CY
2418#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2419#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2420#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2421#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
d5e8f6c9
CY
2422#define stat_inc_inline_xattr(inode) \
2423 do { \
2424 if (f2fs_has_inline_xattr(inode)) \
2425 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2426 } while (0)
2427#define stat_dec_inline_xattr(inode) \
2428 do { \
2429 if (f2fs_has_inline_xattr(inode)) \
2430 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2431 } while (0)
0dbdc2ae
JK
2432#define stat_inc_inline_inode(inode) \
2433 do { \
2434 if (f2fs_has_inline_data(inode)) \
03e14d52 2435 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
0dbdc2ae
JK
2436 } while (0)
2437#define stat_dec_inline_inode(inode) \
2438 do { \
2439 if (f2fs_has_inline_data(inode)) \
03e14d52 2440 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
0dbdc2ae 2441 } while (0)
3289c061
JK
2442#define stat_inc_inline_dir(inode) \
2443 do { \
2444 if (f2fs_has_inline_dentry(inode)) \
03e14d52 2445 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3289c061
JK
2446 } while (0)
2447#define stat_dec_inline_dir(inode) \
2448 do { \
2449 if (f2fs_has_inline_dentry(inode)) \
03e14d52 2450 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3289c061 2451 } while (0)
dcdfff65
JK
2452#define stat_inc_seg_type(sbi, curseg) \
2453 ((sbi)->segment_count[(curseg)->alloc_type]++)
2454#define stat_inc_block_count(sbi, curseg) \
2455 ((sbi)->block_count[(curseg)->alloc_type]++)
b9a2c252
CL
2456#define stat_inc_inplace_blocks(sbi) \
2457 (atomic_inc(&(sbi)->inplace_count))
26a28a0c 2458#define stat_inc_atomic_write(inode) \
cac5a3d8 2459 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
26a28a0c 2460#define stat_dec_atomic_write(inode) \
cac5a3d8 2461 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
26a28a0c
JK
2462#define stat_update_max_atomic_write(inode) \
2463 do { \
2464 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2465 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2466 if (cur > max) \
2467 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2468 } while (0)
648d50ba
CY
2469#define stat_inc_volatile_write(inode) \
2470 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2471#define stat_dec_volatile_write(inode) \
2472 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2473#define stat_update_max_volatile_write(inode) \
2474 do { \
2475 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2476 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2477 if (cur > max) \
2478 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2479 } while (0)
e1235983 2480#define stat_inc_seg_count(sbi, type, gc_type) \
39a53e0c 2481 do { \
963d4f7d 2482 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
68afcf2d
TK
2483 si->tot_segs++; \
2484 if ((type) == SUM_TYPE_DATA) { \
39a53e0c 2485 si->data_segs++; \
e1235983
CL
2486 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2487 } else { \
39a53e0c 2488 si->node_segs++; \
e1235983
CL
2489 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2490 } \
39a53e0c
JK
2491 } while (0)
2492
2493#define stat_inc_tot_blk_count(si, blks) \
68afcf2d 2494 ((si)->tot_blks += (blks))
39a53e0c 2495
e1235983 2496#define stat_inc_data_blk_count(sbi, blks, gc_type) \
39a53e0c 2497 do { \
963d4f7d 2498 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
39a53e0c
JK
2499 stat_inc_tot_blk_count(si, blks); \
2500 si->data_blks += (blks); \
68afcf2d 2501 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
39a53e0c
JK
2502 } while (0)
2503
e1235983 2504#define stat_inc_node_blk_count(sbi, blks, gc_type) \
39a53e0c 2505 do { \
963d4f7d 2506 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
39a53e0c
JK
2507 stat_inc_tot_blk_count(si, blks); \
2508 si->node_blks += (blks); \
68afcf2d 2509 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
39a53e0c
JK
2510 } while (0)
2511
cac5a3d8
DS
2512int f2fs_build_stats(struct f2fs_sb_info *sbi);
2513void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
787c7b8c 2514int __init f2fs_create_root_stats(void);
4589d25d 2515void f2fs_destroy_root_stats(void);
39a53e0c 2516#else
d66450e7
AB
2517#define stat_inc_cp_count(si) do { } while (0)
2518#define stat_inc_bg_cp_count(si) do { } while (0)
2519#define stat_inc_call_count(si) do { } while (0)
2520#define stat_inc_bggc_count(si) do { } while (0)
2521#define stat_inc_dirty_inode(sbi, type) do { } while (0)
2522#define stat_dec_dirty_inode(sbi, type) do { } while (0)
2523#define stat_inc_total_hit(sb) do { } while (0)
2524#define stat_inc_rbtree_node_hit(sb) do { } while (0)
2525#define stat_inc_largest_node_hit(sbi) do { } while (0)
2526#define stat_inc_cached_node_hit(sbi) do { } while (0)
2527#define stat_inc_inline_xattr(inode) do { } while (0)
2528#define stat_dec_inline_xattr(inode) do { } while (0)
2529#define stat_inc_inline_inode(inode) do { } while (0)
2530#define stat_dec_inline_inode(inode) do { } while (0)
2531#define stat_inc_inline_dir(inode) do { } while (0)
2532#define stat_dec_inline_dir(inode) do { } while (0)
2533#define stat_inc_atomic_write(inode) do { } while (0)
2534#define stat_dec_atomic_write(inode) do { } while (0)
2535#define stat_update_max_atomic_write(inode) do { } while (0)
2536#define stat_inc_volatile_write(inode) do { } while (0)
2537#define stat_dec_volatile_write(inode) do { } while (0)
2538#define stat_update_max_volatile_write(inode) do { } while (0)
2539#define stat_inc_seg_type(sbi, curseg) do { } while (0)
2540#define stat_inc_block_count(sbi, curseg) do { } while (0)
2541#define stat_inc_inplace_blocks(sbi) do { } while (0)
2542#define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
2543#define stat_inc_tot_blk_count(si, blks) do { } while (0)
2544#define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
2545#define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
39a53e0c
JK
2546
2547static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2548static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
787c7b8c 2549static inline int __init f2fs_create_root_stats(void) { return 0; }
4589d25d 2550static inline void f2fs_destroy_root_stats(void) { }
39a53e0c
JK
2551#endif
2552
2553extern const struct file_operations f2fs_dir_operations;
2554extern const struct file_operations f2fs_file_operations;
2555extern const struct inode_operations f2fs_file_inode_operations;
2556extern const struct address_space_operations f2fs_dblock_aops;
2557extern const struct address_space_operations f2fs_node_aops;
2558extern const struct address_space_operations f2fs_meta_aops;
2559extern const struct inode_operations f2fs_dir_inode_operations;
2560extern const struct inode_operations f2fs_symlink_inode_operations;
cbaf042a 2561extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
39a53e0c 2562extern const struct inode_operations f2fs_special_inode_operations;
29e7043f 2563extern struct kmem_cache *inode_entry_slab;
1001b347 2564
e18c65b2
HL
2565/*
2566 * inline.c
2567 */
cac5a3d8
DS
2568bool f2fs_may_inline_data(struct inode *inode);
2569bool f2fs_may_inline_dentry(struct inode *inode);
2570void read_inline_data(struct page *page, struct page *ipage);
bd4667cb 2571void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from);
cac5a3d8
DS
2572int f2fs_read_inline_data(struct inode *inode, struct page *page);
2573int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
2574int f2fs_convert_inline_inode(struct inode *inode);
2575int f2fs_write_inline_data(struct inode *inode, struct page *page);
2576bool recover_inline_data(struct inode *inode, struct page *npage);
2577struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
2578 struct fscrypt_name *fname, struct page **res_page);
2579int make_empty_inline_dir(struct inode *inode, struct inode *parent,
2580 struct page *ipage);
2581int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
2582 const struct qstr *orig_name,
2583 struct inode *inode, nid_t ino, umode_t mode);
2584void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
2585 struct inode *dir, struct inode *inode);
2586bool f2fs_empty_inline_dir(struct inode *dir);
2587int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
2588 struct fscrypt_str *fstr);
2589int f2fs_inline_data_fiemap(struct inode *inode,
2590 struct fiemap_extent_info *fieinfo,
2591 __u64 start, __u64 len);
cde4de12 2592
2658e50d
JK
2593/*
2594 * shrinker.c
2595 */
cac5a3d8
DS
2596unsigned long f2fs_shrink_count(struct shrinker *shrink,
2597 struct shrink_control *sc);
2598unsigned long f2fs_shrink_scan(struct shrinker *shrink,
2599 struct shrink_control *sc);
2600void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
2601void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
2658e50d 2602
a28ef1f5
CY
2603/*
2604 * extent_cache.c
2605 */
004b6862
CY
2606struct rb_entry *__lookup_rb_tree(struct rb_root *root,
2607 struct rb_entry *cached_re, unsigned int ofs);
2608struct rb_node **__lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
2609 struct rb_root *root, struct rb_node **parent,
2610 unsigned int ofs);
2611struct rb_entry *__lookup_rb_tree_ret(struct rb_root *root,
2612 struct rb_entry *cached_re, unsigned int ofs,
2613 struct rb_entry **prev_entry, struct rb_entry **next_entry,
2614 struct rb_node ***insert_p, struct rb_node **insert_parent,
2615 bool force);
df0f6b44
CY
2616bool __check_rb_tree_consistence(struct f2fs_sb_info *sbi,
2617 struct rb_root *root);
cac5a3d8
DS
2618unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
2619bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
2620void f2fs_drop_extent_tree(struct inode *inode);
2621unsigned int f2fs_destroy_extent_node(struct inode *inode);
2622void f2fs_destroy_extent_tree(struct inode *inode);
2623bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
2624 struct extent_info *ei);
2625void f2fs_update_extent_cache(struct dnode_of_data *dn);
19b2c30d 2626void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
cac5a3d8
DS
2627 pgoff_t fofs, block_t blkaddr, unsigned int len);
2628void init_extent_cache_info(struct f2fs_sb_info *sbi);
a28ef1f5
CY
2629int __init create_extent_cache(void);
2630void destroy_extent_cache(void);
2631
cde4de12
JK
2632/*
2633 * crypto support
2634 */
0b81d077 2635static inline bool f2fs_encrypted_inode(struct inode *inode)
cde4de12 2636{
cde4de12 2637 return file_is_encrypt(inode);
cde4de12
JK
2638}
2639
2640static inline void f2fs_set_encrypted_inode(struct inode *inode)
2641{
2642#ifdef CONFIG_F2FS_FS_ENCRYPTION
2643 file_set_encrypt(inode);
2644#endif
2645}
2646
2647static inline bool f2fs_bio_encrypted(struct bio *bio)
2648{
0b81d077 2649 return bio->bi_private != NULL;
cde4de12
JK
2650}
2651
2652static inline int f2fs_sb_has_crypto(struct super_block *sb)
2653{
cde4de12 2654 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
cde4de12 2655}
f424f664 2656
0bfd7a09 2657static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb)
52763a4b 2658{
0bfd7a09 2659 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED);
52763a4b
JK
2660}
2661
178053e2
DLM
2662#ifdef CONFIG_BLK_DEV_ZONED
2663static inline int get_blkz_type(struct f2fs_sb_info *sbi,
3c62be17 2664 struct block_device *bdev, block_t blkaddr)
178053e2
DLM
2665{
2666 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3c62be17 2667 int i;
178053e2 2668
3c62be17
JK
2669 for (i = 0; i < sbi->s_ndevs; i++)
2670 if (FDEV(i).bdev == bdev)
2671 return FDEV(i).blkz_type[zno];
2672 return -EINVAL;
178053e2
DLM
2673}
2674#endif
2675
96ba2dec 2676static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
52763a4b 2677{
96ba2dec
DLM
2678 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
2679
2680 return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb);
52763a4b
JK
2681}
2682
2683static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2684{
2685 clear_opt(sbi, ADAPTIVE);
2686 clear_opt(sbi, LFS);
2687
2688 switch (mt) {
2689 case F2FS_MOUNT_ADAPTIVE:
2690 set_opt(sbi, ADAPTIVE);
2691 break;
2692 case F2FS_MOUNT_LFS:
2693 set_opt(sbi, LFS);
2694 break;
2695 }
2696}
2697
fcc85a4d
JK
2698static inline bool f2fs_may_encrypt(struct inode *inode)
2699{
2700#ifdef CONFIG_F2FS_FS_ENCRYPTION
886f56f9 2701 umode_t mode = inode->i_mode;
fcc85a4d
JK
2702
2703 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
2704#else
2705 return 0;
2706#endif
2707}
2708
39a53e0c 2709#endif