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f2fs: support get_page error injection
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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>
0abd675e 25#include <linux/quotaops.h>
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26#ifdef CONFIG_F2FS_FS_ENCRYPTION
27#include <linux/fscrypt_supp.h>
28#else
29#include <linux/fscrypt_notsupp.h>
30#endif
43b6573b 31#include <crypto/hash.h>
39a53e0c 32
5d56b671 33#ifdef CONFIG_F2FS_CHECK_FS
9850cf4a 34#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
5d56b671 35#else
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36#define f2fs_bug_on(sbi, condition) \
37 do { \
38 if (unlikely(condition)) { \
39 WARN_ON(1); \
caf0047e 40 set_sbi_flag(sbi, SBI_NEED_FSCK); \
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41 } \
42 } while (0)
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43#endif
44
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45#ifdef CONFIG_F2FS_FAULT_INJECTION
46enum {
47 FAULT_KMALLOC,
c41f3cc3 48 FAULT_PAGE_ALLOC,
01eccef7 49 FAULT_PAGE_GET,
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50 FAULT_ALLOC_NID,
51 FAULT_ORPHAN,
52 FAULT_BLOCK,
53 FAULT_DIR_DEPTH,
53aa6bbf 54 FAULT_EVICT_INODE,
14b44d23 55 FAULT_TRUNCATE,
8b038c70 56 FAULT_IO,
0f348028 57 FAULT_CHECKPOINT,
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58 FAULT_MAX,
59};
60
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61struct f2fs_fault_info {
62 atomic_t inject_ops;
63 unsigned int inject_rate;
64 unsigned int inject_type;
65};
66
2c63fead 67extern char *fault_name[FAULT_MAX];
68afcf2d 68#define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
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69#endif
70
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71/*
72 * For mount options
73 */
74#define F2FS_MOUNT_BG_GC 0x00000001
75#define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
76#define F2FS_MOUNT_DISCARD 0x00000004
77#define F2FS_MOUNT_NOHEAP 0x00000008
78#define F2FS_MOUNT_XATTR_USER 0x00000010
79#define F2FS_MOUNT_POSIX_ACL 0x00000020
80#define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
444c580f 81#define F2FS_MOUNT_INLINE_XATTR 0x00000080
1001b347 82#define F2FS_MOUNT_INLINE_DATA 0x00000100
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83#define F2FS_MOUNT_INLINE_DENTRY 0x00000200
84#define F2FS_MOUNT_FLUSH_MERGE 0x00000400
85#define F2FS_MOUNT_NOBARRIER 0x00000800
d5053a34 86#define F2FS_MOUNT_FASTBOOT 0x00001000
89672159 87#define F2FS_MOUNT_EXTENT_CACHE 0x00002000
6aefd93b 88#define F2FS_MOUNT_FORCE_FG_GC 0x00004000
343f40f0 89#define F2FS_MOUNT_DATA_FLUSH 0x00008000
73faec4d 90#define F2FS_MOUNT_FAULT_INJECTION 0x00010000
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91#define F2FS_MOUNT_ADAPTIVE 0x00020000
92#define F2FS_MOUNT_LFS 0x00040000
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93#define F2FS_MOUNT_USRQUOTA 0x00080000
94#define F2FS_MOUNT_GRPQUOTA 0x00100000
5c57132e 95#define F2FS_MOUNT_PRJQUOTA 0x00200000
4b2414d0 96#define F2FS_MOUNT_QUOTA 0x00400000
6afc662e 97#define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
39a53e0c 98
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99#define clear_opt(sbi, option) ((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option)
100#define set_opt(sbi, option) ((sbi)->mount_opt.opt |= F2FS_MOUNT_##option)
101#define test_opt(sbi, option) ((sbi)->mount_opt.opt & F2FS_MOUNT_##option)
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102
103#define ver_after(a, b) (typecheck(unsigned long long, a) && \
104 typecheck(unsigned long long, b) && \
105 ((long long)((a) - (b)) > 0))
106
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107typedef u32 block_t; /*
108 * should not change u32, since it is the on-disk block
109 * address format, __le32.
110 */
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111typedef u32 nid_t;
112
113struct f2fs_mount_info {
114 unsigned int opt;
115};
116
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117#define F2FS_FEATURE_ENCRYPT 0x0001
118#define F2FS_FEATURE_BLKZONED 0x0002
119#define F2FS_FEATURE_ATOMIC_WRITE 0x0004
120#define F2FS_FEATURE_EXTRA_ATTR 0x0008
5c57132e 121#define F2FS_FEATURE_PRJQUOTA 0x0010
704956ec 122#define F2FS_FEATURE_INODE_CHKSUM 0x0020
6afc662e 123#define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
cde4de12 124
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125#define F2FS_HAS_FEATURE(sb, mask) \
126 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
127#define F2FS_SET_FEATURE(sb, mask) \
c64ab12e 128 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
76f105a2 129#define F2FS_CLEAR_FEATURE(sb, mask) \
c64ab12e 130 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
76f105a2 131
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132/*
133 * For checkpoint manager
134 */
135enum {
136 NAT_BITMAP,
137 SIT_BITMAP
138};
139
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140#define CP_UMOUNT 0x00000001
141#define CP_FASTBOOT 0x00000002
142#define CP_SYNC 0x00000004
143#define CP_RECOVERY 0x00000008
144#define CP_DISCARD 0x00000010
1f43e2ad 145#define CP_TRIMMED 0x00000020
75ab4cb8 146
47b89808 147#define DEF_BATCHED_TRIM_SECTIONS 2048
bba681cb 148#define BATCHED_TRIM_SEGMENTS(sbi) \
4ddb1a4d 149 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
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150#define BATCHED_TRIM_BLOCKS(sbi) \
151 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
4ddb1a4d 152#define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
ecc9aa00 153#define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
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154#define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
155#define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
60b99b48 156#define DEF_CP_INTERVAL 60 /* 60 secs */
dcf25fe8 157#define DEF_IDLE_INTERVAL 5 /* 5 secs */
bba681cb 158
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159struct cp_control {
160 int reason;
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161 __u64 trim_start;
162 __u64 trim_end;
163 __u64 trim_minlen;
164 __u64 trimmed;
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165};
166
662befda 167/*
81c1a0f1 168 * For CP/NAT/SIT/SSA readahead
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169 */
170enum {
171 META_CP,
172 META_NAT,
81c1a0f1 173 META_SIT,
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174 META_SSA,
175 META_POR,
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176};
177
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178/* for the list of ino */
179enum {
180 ORPHAN_INO, /* for orphan ino list */
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181 APPEND_INO, /* for append ino list */
182 UPDATE_INO, /* for update ino list */
39d787be 183 FLUSH_INO, /* for multiple device flushing */
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184 MAX_INO_ENTRY, /* max. list */
185};
186
187struct ino_entry {
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188 struct list_head list; /* list head */
189 nid_t ino; /* inode number */
190 unsigned int dirty_device; /* dirty device bitmap */
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191};
192
2710fd7e 193/* for the list of inodes to be GCed */
06292073 194struct inode_entry {
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195 struct list_head list; /* list head */
196 struct inode *inode; /* vfs inode pointer */
197};
198
a7eeb823 199/* for the bitmap indicate blocks to be discarded */
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200struct discard_entry {
201 struct list_head list; /* list head */
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202 block_t start_blkaddr; /* start blockaddr of current segment */
203 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
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204};
205
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206/* default discard granularity of inner discard thread, unit: block count */
207#define DEFAULT_DISCARD_GRANULARITY 16
208
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209/* max discard pend list number */
210#define MAX_PLIST_NUM 512
211#define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
212 (MAX_PLIST_NUM - 1) : (blk_num - 1))
213
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214enum {
215 D_PREP,
216 D_SUBMIT,
217 D_DONE,
218};
219
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220struct discard_info {
221 block_t lstart; /* logical start address */
222 block_t len; /* length */
223 block_t start; /* actual start address in dev */
224};
225
b01a9201 226struct discard_cmd {
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227 struct rb_node rb_node; /* rb node located in rb-tree */
228 union {
229 struct {
230 block_t lstart; /* logical start address */
231 block_t len; /* length */
232 block_t start; /* actual start address in dev */
233 };
234 struct discard_info di; /* discard info */
235
236 };
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237 struct list_head list; /* command list */
238 struct completion wait; /* compleation */
c81abe34 239 struct block_device *bdev; /* bdev */
ec9895ad 240 unsigned short ref; /* reference count */
9a744b92 241 unsigned char state; /* state */
c81abe34 242 int error; /* bio error */
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243};
244
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245enum {
246 DPOLICY_BG,
247 DPOLICY_FORCE,
248 DPOLICY_FSTRIM,
249 DPOLICY_UMOUNT,
250 MAX_DPOLICY,
251};
252
ecc9aa00 253struct discard_policy {
78997b56 254 int type; /* type of discard */
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255 unsigned int min_interval; /* used for candidates exist */
256 unsigned int max_interval; /* used for candidates not exist */
257 unsigned int max_requests; /* # of discards issued per round */
258 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
259 bool io_aware; /* issue discard in idle time */
260 bool sync; /* submit discard with REQ_SYNC flag */
78997b56 261 unsigned int granularity; /* discard granularity */
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262};
263
0b54fb84 264struct discard_cmd_control {
15469963 265 struct task_struct *f2fs_issue_discard; /* discard thread */
46f84c2c 266 struct list_head entry_list; /* 4KB discard entry list */
ba48a33e 267 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
969d1b18 268 unsigned char pend_list_tag[MAX_PLIST_NUM];/* tag for pending entries */
46f84c2c 269 struct list_head wait_list; /* store on-flushing entries */
8412663d 270 struct list_head fstrim_list; /* in-flight discard from fstrim */
15469963 271 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
969d1b18 272 unsigned int discard_wake; /* to wake up discard thread */
15469963 273 struct mutex cmd_lock;
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274 unsigned int nr_discards; /* # of discards in the list */
275 unsigned int max_discards; /* max. discards to be issued */
969d1b18 276 unsigned int discard_granularity; /* discard granularity */
d84d1cbd 277 unsigned int undiscard_blks; /* # of undiscard blocks */
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278 atomic_t issued_discard; /* # of issued discard */
279 atomic_t issing_discard; /* # of issing discard */
5f32366a 280 atomic_t discard_cmd_cnt; /* # of cached cmd count */
004b6862 281 struct rb_root root; /* root of discard rb-tree */
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282};
283
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284/* for the list of fsync inodes, used only during recovery */
285struct fsync_inode_entry {
286 struct list_head list; /* list head */
287 struct inode *inode; /* vfs inode pointer */
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288 block_t blkaddr; /* block address locating the last fsync */
289 block_t last_dentry; /* block address locating the last dentry */
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290};
291
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292#define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
293#define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
39a53e0c 294
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295#define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
296#define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
297#define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
298#define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
39a53e0c 299
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300#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
301#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
309cc2b6 302
dfc08a12 303static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
39a53e0c 304{
dfc08a12 305 int before = nats_in_cursum(journal);
cac5a3d8 306
dfc08a12 307 journal->n_nats = cpu_to_le16(before + i);
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308 return before;
309}
310
dfc08a12 311static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
39a53e0c 312{
dfc08a12 313 int before = sits_in_cursum(journal);
cac5a3d8 314
dfc08a12 315 journal->n_sits = cpu_to_le16(before + i);
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316 return before;
317}
318
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319static inline bool __has_cursum_space(struct f2fs_journal *journal,
320 int size, int type)
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321{
322 if (type == NAT_JOURNAL)
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323 return size <= MAX_NAT_JENTRIES(journal);
324 return size <= MAX_SIT_JENTRIES(journal);
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325}
326
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327/*
328 * ioctl commands
329 */
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330#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
331#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
d49f3e89 332#define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
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333
334#define F2FS_IOCTL_MAGIC 0xf5
335#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
336#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
02a1335f 337#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
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338#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
339#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
d07efb50 340#define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
456b88e4 341#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
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342#define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
343 struct f2fs_defragment)
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344#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
345 struct f2fs_move_range)
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346#define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
347 struct f2fs_flush_device)
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348#define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
349 struct f2fs_gc_range)
e65ef207 350#define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
e9750824 351
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352#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
353#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
354#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
f424f664 355
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356/*
357 * should be same as XFS_IOC_GOINGDOWN.
358 * Flags for going down operation used by FS_IOC_GOINGDOWN
359 */
360#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
361#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
362#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
363#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
c912a829 364#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
1abff93d 365
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366#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
367/*
368 * ioctl commands in 32 bit emulation
369 */
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370#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
371#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
372#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
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373#endif
374
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375#define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
376#define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
377
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378struct f2fs_gc_range {
379 u32 sync;
380 u64 start;
381 u64 len;
382};
383
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384struct f2fs_defragment {
385 u64 start;
386 u64 len;
387};
388
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389struct f2fs_move_range {
390 u32 dst_fd; /* destination fd */
391 u64 pos_in; /* start position in src_fd */
392 u64 pos_out; /* start position in dst_fd */
393 u64 len; /* size to move */
394};
395
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396struct f2fs_flush_device {
397 u32 dev_num; /* device number to flush */
398 u32 segments; /* # of segments to flush */
399};
400
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401/* for inline stuff */
402#define DEF_INLINE_RESERVED_SIZE 1
6afc662e 403#define DEF_MIN_INLINE_SIZE 1
7a2af766 404static inline int get_extra_isize(struct inode *inode);
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405static inline int get_inline_xattr_addrs(struct inode *inode);
406#define F2FS_INLINE_XATTR_ADDRS(inode) get_inline_xattr_addrs(inode)
407#define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
408 (CUR_ADDRS_PER_INODE(inode) - \
409 F2FS_INLINE_XATTR_ADDRS(inode) - \
410 DEF_INLINE_RESERVED_SIZE))
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411
412/* for inline dir */
413#define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
414 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
415 BITS_PER_BYTE + 1))
416#define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
417 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
418#define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
419 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
420 NR_INLINE_DENTRY(inode) + \
421 INLINE_DENTRY_BITMAP_SIZE(inode)))
422
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423/*
424 * For INODE and NODE manager
425 */
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426/* for directory operations */
427struct f2fs_dentry_ptr {
d8c6822a 428 struct inode *inode;
76a9dd85 429 void *bitmap;
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430 struct f2fs_dir_entry *dentry;
431 __u8 (*filename)[F2FS_SLOT_LEN];
432 int max;
76a9dd85 433 int nr_bitmap;
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434};
435
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436static inline void make_dentry_ptr_block(struct inode *inode,
437 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
7b3cd7d6 438{
d8c6822a 439 d->inode = inode;
64c24ecb 440 d->max = NR_DENTRY_IN_BLOCK;
76a9dd85 441 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
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442 d->bitmap = &t->dentry_bitmap;
443 d->dentry = t->dentry;
444 d->filename = t->filename;
445}
d8c6822a 446
64c24ecb 447static inline void make_dentry_ptr_inline(struct inode *inode,
f2470371 448 struct f2fs_dentry_ptr *d, void *t)
64c24ecb 449{
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450 int entry_cnt = NR_INLINE_DENTRY(inode);
451 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
452 int reserved_size = INLINE_RESERVED_SIZE(inode);
453
64c24ecb 454 d->inode = inode;
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455 d->max = entry_cnt;
456 d->nr_bitmap = bitmap_size;
457 d->bitmap = t;
458 d->dentry = t + bitmap_size + reserved_size;
459 d->filename = t + bitmap_size + reserved_size +
460 SIZE_OF_DIR_ENTRY * entry_cnt;
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461}
462
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463/*
464 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
465 * as its node offset to distinguish from index node blocks.
466 * But some bits are used to mark the node block.
467 */
468#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
469 >> OFFSET_BIT_SHIFT)
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470enum {
471 ALLOC_NODE, /* allocate a new node page if needed */
472 LOOKUP_NODE, /* look up a node without readahead */
473 LOOKUP_NODE_RA, /*
474 * look up a node with readahead called
4f4124d0 475 * by get_data_block.
39a53e0c 476 */
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477};
478
a6db67f0 479#define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
39a53e0c 480
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481#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
482
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483/* vector size for gang look-up from extent cache that consists of radix tree */
484#define EXT_TREE_VEC_SIZE 64
485
39a53e0c 486/* for in-memory extent cache entry */
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487#define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
488
489/* number of extent info in extent cache we try to shrink */
490#define EXTENT_CACHE_SHRINK_NUMBER 128
c11abd1a 491
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492struct rb_entry {
493 struct rb_node rb_node; /* rb node located in rb-tree */
494 unsigned int ofs; /* start offset of the entry */
495 unsigned int len; /* length of the entry */
496};
497
39a53e0c 498struct extent_info {
13054c54 499 unsigned int fofs; /* start offset in a file */
13054c54 500 unsigned int len; /* length of the extent */
54c2258c 501 u32 blk; /* start block address of the extent */
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502};
503
504struct extent_node {
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505 struct rb_node rb_node;
506 union {
507 struct {
508 unsigned int fofs;
509 unsigned int len;
510 u32 blk;
511 };
512 struct extent_info ei; /* extent info */
513
514 };
13054c54 515 struct list_head list; /* node in global extent list of sbi */
201ef5e0 516 struct extent_tree *et; /* extent tree pointer */
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517};
518
519struct extent_tree {
520 nid_t ino; /* inode number */
521 struct rb_root root; /* root of extent info rb-tree */
62c8af65 522 struct extent_node *cached_en; /* recently accessed extent node */
3e72f721 523 struct extent_info largest; /* largested extent info */
137d09f0 524 struct list_head list; /* to be used by sbi->zombie_list */
13054c54 525 rwlock_t lock; /* protect extent info rb-tree */
68e35385 526 atomic_t node_cnt; /* # of extent node in rb-tree*/
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527};
528
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529/*
530 * This structure is taken from ext4_map_blocks.
531 *
532 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
533 */
534#define F2FS_MAP_NEW (1 << BH_New)
535#define F2FS_MAP_MAPPED (1 << BH_Mapped)
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536#define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
537#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
538 F2FS_MAP_UNWRITTEN)
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539
540struct f2fs_map_blocks {
541 block_t m_pblk;
542 block_t m_lblk;
543 unsigned int m_len;
544 unsigned int m_flags;
da85985c 545 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
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546};
547
e2b4e2bc 548/* for flag in get_data_block */
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549enum {
550 F2FS_GET_BLOCK_DEFAULT,
551 F2FS_GET_BLOCK_FIEMAP,
552 F2FS_GET_BLOCK_BMAP,
553 F2FS_GET_BLOCK_PRE_DIO,
554 F2FS_GET_BLOCK_PRE_AIO,
555};
e2b4e2bc 556
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557/*
558 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
559 */
560#define FADVISE_COLD_BIT 0x01
354a3399 561#define FADVISE_LOST_PINO_BIT 0x02
cde4de12 562#define FADVISE_ENCRYPT_BIT 0x04
e7d55452 563#define FADVISE_ENC_NAME_BIT 0x08
26787236 564#define FADVISE_KEEP_SIZE_BIT 0x10
39a53e0c 565
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566#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
567#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
568#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
569#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
570#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
571#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
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572#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
573#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
574#define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
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575#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
576#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
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577#define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
578#define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
cde4de12 579
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580#define DEF_DIR_LEVEL 0
581
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582struct f2fs_inode_info {
583 struct inode vfs_inode; /* serve a vfs inode */
584 unsigned long i_flags; /* keep an inode flags for ioctl */
585 unsigned char i_advise; /* use to give file attribute hints */
38431545 586 unsigned char i_dir_level; /* use for dentry level for large dir */
39a53e0c 587 unsigned int i_current_depth; /* use only in directory structure */
6666e6aa 588 unsigned int i_pino; /* parent inode number */
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589 umode_t i_acl_mode; /* keep file acl mode temporarily */
590
591 /* Use below internally in f2fs*/
592 unsigned long flags; /* use to pass per-file flags */
d928bfbf 593 struct rw_semaphore i_sem; /* protect fi info */
204706c7 594 atomic_t dirty_pages; /* # of dirty pages */
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595 f2fs_hash_t chash; /* hash value of given file name */
596 unsigned int clevel; /* maximum level of given file name */
88c5c13a 597 struct task_struct *task; /* lookup and create consistency */
b0af6d49 598 struct task_struct *cp_task; /* separate cp/wb IO stats*/
39a53e0c 599 nid_t i_xattr_nid; /* node id that contains xattrs */
26de9b11 600 loff_t last_disk_size; /* lastly written file size */
88b88a66 601
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602#ifdef CONFIG_QUOTA
603 struct dquot *i_dquot[MAXQUOTAS];
604
605 /* quota space reservation, managed internally by quota code */
606 qsize_t i_reserved_quota;
607#endif
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608 struct list_head dirty_list; /* dirty list for dirs and files */
609 struct list_head gdirty_list; /* linked in global dirty list */
57864ae5 610 struct list_head inmem_ilist; /* list for inmem inodes */
88b88a66 611 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
7a10f017 612 struct task_struct *inmem_task; /* store inmemory task */
88b88a66 613 struct mutex inmem_lock; /* lock for inmemory pages */
3e72f721 614 struct extent_tree *extent_tree; /* cached extent_tree entry */
82e0a5aa 615 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
5a3a2d83 616 struct rw_semaphore i_mmap_sem;
27161f13 617 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
f2470371 618
7a2af766 619 int i_extra_isize; /* size of extra space located in i_addr */
5c57132e 620 kprojid_t i_projid; /* id for project quota */
6afc662e 621 int i_inline_xattr_size; /* inline xattr size */
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622};
623
624static inline void get_extent_info(struct extent_info *ext,
bd933d4f 625 struct f2fs_extent *i_ext)
39a53e0c 626{
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627 ext->fofs = le32_to_cpu(i_ext->fofs);
628 ext->blk = le32_to_cpu(i_ext->blk);
629 ext->len = le32_to_cpu(i_ext->len);
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630}
631
632static inline void set_raw_extent(struct extent_info *ext,
633 struct f2fs_extent *i_ext)
634{
39a53e0c 635 i_ext->fofs = cpu_to_le32(ext->fofs);
4d0b0bd4 636 i_ext->blk = cpu_to_le32(ext->blk);
39a53e0c 637 i_ext->len = cpu_to_le32(ext->len);
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638}
639
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640static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
641 u32 blk, unsigned int len)
642{
643 ei->fofs = fofs;
644 ei->blk = blk;
645 ei->len = len;
646}
647
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648static inline bool __is_discard_mergeable(struct discard_info *back,
649 struct discard_info *front)
650{
651 return back->lstart + back->len == front->lstart;
652}
653
654static inline bool __is_discard_back_mergeable(struct discard_info *cur,
655 struct discard_info *back)
656{
657 return __is_discard_mergeable(back, cur);
658}
659
660static inline bool __is_discard_front_mergeable(struct discard_info *cur,
661 struct discard_info *front)
662{
663 return __is_discard_mergeable(cur, front);
664}
665
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666static inline bool __is_extent_mergeable(struct extent_info *back,
667 struct extent_info *front)
668{
669 return (back->fofs + back->len == front->fofs &&
670 back->blk + back->len == front->blk);
671}
672
673static inline bool __is_back_mergeable(struct extent_info *cur,
674 struct extent_info *back)
675{
676 return __is_extent_mergeable(back, cur);
677}
678
679static inline bool __is_front_mergeable(struct extent_info *cur,
680 struct extent_info *front)
681{
682 return __is_extent_mergeable(cur, front);
683}
684
cac5a3d8 685extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
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686static inline void __try_update_largest_extent(struct inode *inode,
687 struct extent_tree *et, struct extent_node *en)
4abd3f5a 688{
205b9822 689 if (en->ei.len > et->largest.len) {
4abd3f5a 690 et->largest = en->ei;
7c45729a 691 f2fs_mark_inode_dirty_sync(inode, true);
205b9822 692 }
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693}
694
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695/*
696 * For free nid management
697 */
698enum nid_state {
699 FREE_NID, /* newly added to free nid list */
700 PREALLOC_NID, /* it is preallocated */
701 MAX_NID_STATE,
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702};
703
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704struct f2fs_nm_info {
705 block_t nat_blkaddr; /* base disk address of NAT */
706 nid_t max_nid; /* maximum possible node ids */
04d47e67 707 nid_t available_nids; /* # of available node ids */
39a53e0c 708 nid_t next_scan_nid; /* the next nid to be scanned */
cdfc41c1 709 unsigned int ram_thresh; /* control the memory footprint */
ea1a29a0 710 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
2304cb0c 711 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
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712
713 /* NAT cache management */
714 struct radix_tree_root nat_root;/* root of the nat entry cache */
309cc2b6 715 struct radix_tree_root nat_set_root;/* root of the nat set cache */
b873b798 716 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
39a53e0c 717 struct list_head nat_entries; /* cached nat entry list (clean) */
309cc2b6 718 unsigned int nat_cnt; /* the # of cached nat entries */
aec71382 719 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
22ad0b6a 720 unsigned int nat_blocks; /* # of nat blocks */
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721
722 /* free node ids management */
8a7ed66a 723 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
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724 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
725 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
b8559dc2 726 spinlock_t nid_list_lock; /* protect nid lists ops */
39a53e0c 727 struct mutex build_lock; /* lock for build free nids */
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728 unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE];
729 unsigned char *nat_block_bitmap;
586d1492 730 unsigned short *free_nid_count; /* free nid count of NAT block */
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731
732 /* for checkpoint */
733 char *nat_bitmap; /* NAT bitmap pointer */
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734
735 unsigned int nat_bits_blocks; /* # of nat bits blocks */
736 unsigned char *nat_bits; /* NAT bits blocks */
737 unsigned char *full_nat_bits; /* full NAT pages */
738 unsigned char *empty_nat_bits; /* empty NAT pages */
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739#ifdef CONFIG_F2FS_CHECK_FS
740 char *nat_bitmap_mir; /* NAT bitmap mirror */
741#endif
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742 int bitmap_size; /* bitmap size */
743};
744
745/*
746 * this structure is used as one of function parameters.
747 * all the information are dedicated to a given direct node block determined
748 * by the data offset in a file.
749 */
750struct dnode_of_data {
751 struct inode *inode; /* vfs inode pointer */
752 struct page *inode_page; /* its inode page, NULL is possible */
753 struct page *node_page; /* cached direct node page */
754 nid_t nid; /* node id of the direct node block */
755 unsigned int ofs_in_node; /* data offset in the node page */
756 bool inode_page_locked; /* inode page is locked or not */
93bae099 757 bool node_changed; /* is node block changed */
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758 char cur_level; /* level of hole node page */
759 char max_level; /* level of current page located */
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760 block_t data_blkaddr; /* block address of the node block */
761};
762
763static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
764 struct page *ipage, struct page *npage, nid_t nid)
765{
d66d1f76 766 memset(dn, 0, sizeof(*dn));
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767 dn->inode = inode;
768 dn->inode_page = ipage;
769 dn->node_page = npage;
770 dn->nid = nid;
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771}
772
773/*
774 * For SIT manager
775 *
776 * By default, there are 6 active log areas across the whole main area.
777 * When considering hot and cold data separation to reduce cleaning overhead,
778 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
779 * respectively.
780 * In the current design, you should not change the numbers intentionally.
781 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
782 * logs individually according to the underlying devices. (default: 6)
783 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
784 * data and 8 for node logs.
785 */
786#define NR_CURSEG_DATA_TYPE (3)
787#define NR_CURSEG_NODE_TYPE (3)
788#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
789
790enum {
791 CURSEG_HOT_DATA = 0, /* directory entry blocks */
792 CURSEG_WARM_DATA, /* data blocks */
793 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
794 CURSEG_HOT_NODE, /* direct node blocks of directory files */
795 CURSEG_WARM_NODE, /* direct node blocks of normal files */
796 CURSEG_COLD_NODE, /* indirect node blocks */
38aa0889 797 NO_CHECK_TYPE,
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798};
799
6b4afdd7 800struct flush_cmd {
6b4afdd7 801 struct completion wait;
721bd4d5 802 struct llist_node llnode;
39d787be 803 nid_t ino;
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804 int ret;
805};
806
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807struct flush_cmd_control {
808 struct task_struct *f2fs_issue_flush; /* flush thread */
809 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
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810 atomic_t issued_flush; /* # of issued flushes */
811 atomic_t issing_flush; /* # of issing flushes */
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812 struct llist_head issue_list; /* list for command issue */
813 struct llist_node *dispatch_list; /* list for command dispatch */
a688b9d9
GZ
814};
815
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816struct f2fs_sm_info {
817 struct sit_info *sit_info; /* whole segment information */
818 struct free_segmap_info *free_info; /* free segment information */
819 struct dirty_seglist_info *dirty_info; /* dirty segment information */
820 struct curseg_info *curseg_array; /* active segment information */
821
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822 block_t seg0_blkaddr; /* block address of 0'th segment */
823 block_t main_blkaddr; /* start block address of main area */
824 block_t ssa_blkaddr; /* start block address of SSA area */
825
826 unsigned int segment_count; /* total # of segments */
827 unsigned int main_segments; /* # of segments in main area */
828 unsigned int reserved_segments; /* # of reserved segments */
829 unsigned int ovp_segments; /* # of overprovision segments */
81eb8d6e
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830
831 /* a threshold to reclaim prefree segments */
832 unsigned int rec_prefree_segments;
7fd9e544 833
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834 /* for batched trimming */
835 unsigned int trim_sections; /* # of sections to trim */
836
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837 struct list_head sit_entry_set; /* sit entry set list */
838
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839 unsigned int ipu_policy; /* in-place-update policy */
840 unsigned int min_ipu_util; /* in-place-update threshold */
c1ce1b02 841 unsigned int min_fsync_blocks; /* threshold for fsync */
ef095d19 842 unsigned int min_hot_blocks; /* threshold for hot block allocation */
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843
844 /* for flush command control */
b01a9201 845 struct flush_cmd_control *fcc_info;
a688b9d9 846
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847 /* for discard command control */
848 struct discard_cmd_control *dcc_info;
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849};
850
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851/*
852 * For superblock
853 */
854/*
855 * COUNT_TYPE for monitoring
856 *
857 * f2fs monitors the number of several block types such as on-writeback,
858 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
859 */
36951b38 860#define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
39a53e0c 861enum count_type {
39a53e0c 862 F2FS_DIRTY_DENTS,
c227f912 863 F2FS_DIRTY_DATA,
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864 F2FS_DIRTY_NODES,
865 F2FS_DIRTY_META,
8dcf2ff7 866 F2FS_INMEM_PAGES,
0f18b462 867 F2FS_DIRTY_IMETA,
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868 F2FS_WB_CP_DATA,
869 F2FS_WB_DATA,
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870 NR_COUNT_TYPE,
871};
872
39a53e0c 873/*
e1c42045 874 * The below are the page types of bios used in submit_bio().
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875 * The available types are:
876 * DATA User data pages. It operates as async mode.
877 * NODE Node pages. It operates as async mode.
878 * META FS metadata pages such as SIT, NAT, CP.
879 * NR_PAGE_TYPE The number of page types.
880 * META_FLUSH Make sure the previous pages are written
881 * with waiting the bio's completion
882 * ... Only can be used with META.
883 */
7d5e5109 884#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
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885enum page_type {
886 DATA,
887 NODE,
888 META,
889 NR_PAGE_TYPE,
890 META_FLUSH,
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891 INMEM, /* the below types are used by tracepoints only. */
892 INMEM_DROP,
8c242db9 893 INMEM_INVALIDATE,
28bc106b 894 INMEM_REVOKE,
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895 IPU,
896 OPU,
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897};
898
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899enum temp_type {
900 HOT = 0, /* must be zero for meta bio */
901 WARM,
902 COLD,
903 NR_TEMP_TYPE,
904};
905
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906enum need_lock_type {
907 LOCK_REQ = 0,
908 LOCK_DONE,
909 LOCK_RETRY,
910};
911
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912enum iostat_type {
913 APP_DIRECT_IO, /* app direct IOs */
914 APP_BUFFERED_IO, /* app buffered IOs */
915 APP_WRITE_IO, /* app write IOs */
916 APP_MAPPED_IO, /* app mapped IOs */
917 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
918 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
919 FS_META_IO, /* meta IOs from kworker/reclaimer */
920 FS_GC_DATA_IO, /* data IOs from forground gc */
921 FS_GC_NODE_IO, /* node IOs from forground gc */
922 FS_CP_DATA_IO, /* data IOs from checkpoint */
923 FS_CP_NODE_IO, /* node IOs from checkpoint */
924 FS_CP_META_IO, /* meta IOs from checkpoint */
925 FS_DISCARD, /* discard */
926 NR_IO_TYPE,
927};
928
458e6197 929struct f2fs_io_info {
05ca3632 930 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
39d787be 931 nid_t ino; /* inode number */
7e8f2308 932 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
a912b54d 933 enum temp_type temp; /* contains HOT/WARM/COLD */
04d328de 934 int op; /* contains REQ_OP_ */
ef295ecf 935 int op_flags; /* req_flag_bits */
7a9d7548 936 block_t new_blkaddr; /* new block address to be written */
28bc106b 937 block_t old_blkaddr; /* old block address before Cow */
05ca3632 938 struct page *page; /* page to be written */
4375a336 939 struct page *encrypted_page; /* encrypted page */
fb830fc5 940 struct list_head list; /* serialize IOs */
d68f735b 941 bool submitted; /* indicate IO submission */
cc15620b 942 int need_lock; /* indicate we need to lock cp_rwsem */
fb830fc5 943 bool in_list; /* indicate fio is in io_list */
b0af6d49 944 enum iostat_type io_type; /* io type */
458e6197
JK
945};
946
68afcf2d 947#define is_read_io(rw) ((rw) == READ)
1ff7bd3b 948struct f2fs_bio_info {
458e6197 949 struct f2fs_sb_info *sbi; /* f2fs superblock */
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950 struct bio *bio; /* bios to merge */
951 sector_t last_block_in_bio; /* last block number */
458e6197 952 struct f2fs_io_info fio; /* store buffered io info. */
df0f8dc0 953 struct rw_semaphore io_rwsem; /* blocking op for bio */
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954 spinlock_t io_lock; /* serialize DATA/NODE IOs */
955 struct list_head io_list; /* track fios */
1ff7bd3b
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956};
957
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958#define FDEV(i) (sbi->devs[i])
959#define RDEV(i) (raw_super->devs[i])
960struct f2fs_dev_info {
961 struct block_device *bdev;
962 char path[MAX_PATH_LEN];
963 unsigned int total_segments;
964 block_t start_blk;
965 block_t end_blk;
966#ifdef CONFIG_BLK_DEV_ZONED
967 unsigned int nr_blkz; /* Total number of zones */
968 u8 *blkz_type; /* Array of zones type */
969#endif
970};
971
c227f912
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972enum inode_type {
973 DIR_INODE, /* for dirty dir inode */
974 FILE_INODE, /* for dirty regular/symlink inode */
0f18b462 975 DIRTY_META, /* for all dirtied inode metadata */
57864ae5 976 ATOMIC_FILE, /* for all atomic files */
c227f912
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977 NR_INODE_TYPE,
978};
979
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980/* for inner inode cache management */
981struct inode_management {
982 struct radix_tree_root ino_root; /* ino entry array */
983 spinlock_t ino_lock; /* for ino entry lock */
984 struct list_head ino_list; /* inode list head */
985 unsigned long ino_num; /* number of entries */
986};
987
caf0047e
CY
988/* For s_flag in struct f2fs_sb_info */
989enum {
990 SBI_IS_DIRTY, /* dirty flag for checkpoint */
991 SBI_IS_CLOSE, /* specify unmounting */
992 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
993 SBI_POR_DOING, /* recovery is doing or not */
df728b0f 994 SBI_NEED_SB_WRITE, /* need to recover superblock */
bbf156f7 995 SBI_NEED_CP, /* need to checkpoint */
caf0047e
CY
996};
997
6beceb54
JK
998enum {
999 CP_TIME,
d0239e1b 1000 REQ_TIME,
6beceb54
JK
1001 MAX_TIME,
1002};
1003
39a53e0c
JK
1004struct f2fs_sb_info {
1005 struct super_block *sb; /* pointer to VFS super block */
5e176d54 1006 struct proc_dir_entry *s_proc; /* proc entry */
39a53e0c 1007 struct f2fs_super_block *raw_super; /* raw super block pointer */
e8240f65 1008 int valid_super_block; /* valid super block no */
fadb2fb8 1009 unsigned long s_flag; /* flags for sbi */
39a53e0c 1010
178053e2 1011#ifdef CONFIG_BLK_DEV_ZONED
178053e2
DLM
1012 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1013 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
178053e2
DLM
1014#endif
1015
39a53e0c
JK
1016 /* for node-related operations */
1017 struct f2fs_nm_info *nm_info; /* node manager */
1018 struct inode *node_inode; /* cache node blocks */
1019
1020 /* for segment-related operations */
1021 struct f2fs_sm_info *sm_info; /* segment manager */
1ff7bd3b
JK
1022
1023 /* for bio operations */
a912b54d 1024 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
e41e6d75
CY
1025 struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
1026 /* bio ordering for NODE/DATA */
0a595eba
JK
1027 int write_io_size_bits; /* Write IO size bits */
1028 mempool_t *write_io_dummy; /* Dummy pages */
39a53e0c
JK
1029
1030 /* for checkpoint */
1031 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
8508e44a 1032 int cur_cp_pack; /* remain current cp pack */
aaec2b1d 1033 spinlock_t cp_lock; /* for flag in ckpt */
39a53e0c 1034 struct inode *meta_inode; /* cache meta blocks */
39936837 1035 struct mutex cp_mutex; /* checkpoint procedure lock */
b873b798 1036 struct rw_semaphore cp_rwsem; /* blocking FS operations */
b3582c68 1037 struct rw_semaphore node_write; /* locking node writes */
59c9081b 1038 struct rw_semaphore node_change; /* locking node change */
fb51b5ef 1039 wait_queue_head_t cp_wait;
6beceb54
JK
1040 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1041 long interval_time[MAX_TIME]; /* to store thresholds */
39a53e0c 1042
67298804 1043 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
6451e041
JK
1044
1045 /* for orphan inode, use 0'th array */
0d47c1ad 1046 unsigned int max_orphans; /* max orphan inodes */
39a53e0c 1047
c227f912
CY
1048 /* for inode management */
1049 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1050 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
39a53e0c 1051
13054c54
CY
1052 /* for extent tree cache */
1053 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
5e8256ac 1054 struct mutex extent_tree_lock; /* locking extent radix tree */
13054c54
CY
1055 struct list_head extent_list; /* lru list for shrinker */
1056 spinlock_t extent_lock; /* locking extent lru list */
7441ccef 1057 atomic_t total_ext_tree; /* extent tree count */
137d09f0 1058 struct list_head zombie_list; /* extent zombie tree list */
74fd8d99 1059 atomic_t total_zombie_tree; /* extent zombie tree count */
13054c54
CY
1060 atomic_t total_ext_node; /* extent info count */
1061
e1c42045 1062 /* basic filesystem units */
39a53e0c
JK
1063 unsigned int log_sectors_per_block; /* log2 sectors per block */
1064 unsigned int log_blocksize; /* log2 block size */
1065 unsigned int blocksize; /* block size */
1066 unsigned int root_ino_num; /* root inode number*/
1067 unsigned int node_ino_num; /* node inode number*/
1068 unsigned int meta_ino_num; /* meta inode number*/
1069 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1070 unsigned int blocks_per_seg; /* blocks per segment */
1071 unsigned int segs_per_sec; /* segments per section */
1072 unsigned int secs_per_zone; /* sections per zone */
1073 unsigned int total_sections; /* total section count */
1074 unsigned int total_node_count; /* total node block count */
1075 unsigned int total_valid_node_count; /* valid node block count */
e0afc4d6 1076 loff_t max_file_blocks; /* max block index of file */
39a53e0c 1077 int active_logs; /* # of active logs */
ab9fa662 1078 int dir_level; /* directory level */
6afc662e 1079 int inline_xattr_size; /* inline xattr size */
39a53e0c
JK
1080
1081 block_t user_block_count; /* # of user blocks */
1082 block_t total_valid_block_count; /* # of valid blocks */
a66cdd98 1083 block_t discard_blks; /* discard command candidats */
39a53e0c 1084 block_t last_valid_block_count; /* for recovery */
daeb433e 1085 block_t reserved_blocks; /* configurable reserved blocks */
80d42145 1086 block_t current_reserved_blocks; /* current reserved blocks */
daeb433e 1087
39a53e0c 1088 u32 s_next_generation; /* for NFS support */
523be8a6
JK
1089
1090 /* # of pages, see count_type */
35782b23 1091 atomic_t nr_pages[NR_COUNT_TYPE];
41382ec4
JK
1092 /* # of allocated blocks */
1093 struct percpu_counter alloc_valid_block_count;
39a53e0c 1094
687de7f1
JK
1095 /* writeback control */
1096 atomic_t wb_sync_req; /* count # of WB_SYNC threads */
1097
513c5f37
JK
1098 /* valid inode count */
1099 struct percpu_counter total_valid_inode_count;
1100
39a53e0c
JK
1101 struct f2fs_mount_info mount_opt; /* mount options */
1102
1103 /* for cleaning operations */
1104 struct mutex gc_mutex; /* mutex for GC */
1105 struct f2fs_gc_kthread *gc_thread; /* GC thread */
5ec4e49f 1106 unsigned int cur_victim_sec; /* current victim section num */
39a53e0c 1107
e93b9865
HP
1108 /* threshold for converting bg victims for fg */
1109 u64 fggc_threshold;
1110
b1c57c1c
JK
1111 /* maximum # of trials to find a victim segment for SSR and GC */
1112 unsigned int max_victim_search;
1113
39a53e0c
JK
1114 /*
1115 * for stat information.
1116 * one is for the LFS mode, and the other is for the SSR mode.
1117 */
35b09d82 1118#ifdef CONFIG_F2FS_STAT_FS
39a53e0c
JK
1119 struct f2fs_stat_info *stat_info; /* FS status information */
1120 unsigned int segment_count[2]; /* # of allocated segments */
1121 unsigned int block_count[2]; /* # of allocated blocks */
b9a2c252 1122 atomic_t inplace_count; /* # of inplace update */
5b7ee374
CY
1123 atomic64_t total_hit_ext; /* # of lookup extent cache */
1124 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1125 atomic64_t read_hit_largest; /* # of hit largest extent node */
1126 atomic64_t read_hit_cached; /* # of hit cached extent node */
d5e8f6c9 1127 atomic_t inline_xattr; /* # of inline_xattr inodes */
03e14d52
CY
1128 atomic_t inline_inode; /* # of inline_data inodes */
1129 atomic_t inline_dir; /* # of inline_dentry inodes */
26a28a0c 1130 atomic_t aw_cnt; /* # of atomic writes */
648d50ba 1131 atomic_t vw_cnt; /* # of volatile writes */
26a28a0c 1132 atomic_t max_aw_cnt; /* max # of atomic writes */
648d50ba 1133 atomic_t max_vw_cnt; /* max # of volatile writes */
39a53e0c 1134 int bg_gc; /* background gc calls */
33fbd510 1135 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
35b09d82 1136#endif
39a53e0c 1137 spinlock_t stat_lock; /* lock for stat operations */
b59d0bae 1138
b0af6d49
CY
1139 /* For app/fs IO statistics */
1140 spinlock_t iostat_lock;
1141 unsigned long long write_iostat[NR_IO_TYPE];
1142 bool iostat_enable;
1143
b59d0bae
NJ
1144 /* For sysfs suppport */
1145 struct kobject s_kobj;
1146 struct completion s_kobj_unregister;
2658e50d
JK
1147
1148 /* For shrinker support */
1149 struct list_head s_list;
3c62be17
JK
1150 int s_ndevs; /* number of devices */
1151 struct f2fs_dev_info *devs; /* for device list */
1228b482
CY
1152 unsigned int dirty_device; /* for checkpoint data flush */
1153 spinlock_t dev_lock; /* protect dirty_device */
2658e50d
JK
1154 struct mutex umount_mutex;
1155 unsigned int shrinker_run_no;
8f1dbbbb
SL
1156
1157 /* For write statistics */
1158 u64 sectors_written_start;
1159 u64 kbytes_written;
43b6573b
KM
1160
1161 /* Reference to checksum algorithm driver via cryptoapi */
1162 struct crypto_shash *s_chksum_driver;
1ecc0c5c 1163
704956ec
CY
1164 /* Precomputed FS UUID checksum for seeding other checksums */
1165 __u32 s_chksum_seed;
1166
1ecc0c5c
CY
1167 /* For fault injection */
1168#ifdef CONFIG_F2FS_FAULT_INJECTION
1169 struct f2fs_fault_info fault_info;
1170#endif
4b2414d0
CY
1171
1172#ifdef CONFIG_QUOTA
1173 /* Names of quota files with journalled quota */
1174 char *s_qf_names[MAXQUOTAS];
1175 int s_jquota_fmt; /* Format of quota to use */
1176#endif
39a53e0c
JK
1177};
1178
1ecc0c5c 1179#ifdef CONFIG_F2FS_FAULT_INJECTION
55523519
CY
1180#define f2fs_show_injection_info(type) \
1181 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1182 KERN_INFO, fault_name[type], \
1183 __func__, __builtin_return_address(0))
1ecc0c5c
CY
1184static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1185{
1186 struct f2fs_fault_info *ffi = &sbi->fault_info;
1187
1188 if (!ffi->inject_rate)
1189 return false;
1190
1191 if (!IS_FAULT_SET(ffi, type))
1192 return false;
1193
1194 atomic_inc(&ffi->inject_ops);
1195 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1196 atomic_set(&ffi->inject_ops, 0);
1ecc0c5c
CY
1197 return true;
1198 }
1199 return false;
1200}
1201#endif
1202
8f1dbbbb
SL
1203/* For write statistics. Suppose sector size is 512 bytes,
1204 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1205 */
1206#define BD_PART_WRITTEN(s) \
68afcf2d
TK
1207(((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1208 (s)->sectors_written_start) >> 1)
8f1dbbbb 1209
6beceb54
JK
1210static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1211{
1212 sbi->last_time[type] = jiffies;
1213}
1214
1215static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1216{
6bccfa19 1217 unsigned long interval = sbi->interval_time[type] * HZ;
6beceb54
JK
1218
1219 return time_after(jiffies, sbi->last_time[type] + interval);
1220}
1221
d0239e1b
JK
1222static inline bool is_idle(struct f2fs_sb_info *sbi)
1223{
1224 struct block_device *bdev = sbi->sb->s_bdev;
1225 struct request_queue *q = bdev_get_queue(bdev);
1226 struct request_list *rl = &q->root_rl;
1227
1228 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1229 return 0;
1230
1231 return f2fs_time_over(sbi, REQ_TIME);
1232}
1233
39a53e0c
JK
1234/*
1235 * Inline functions
1236 */
43b6573b
KM
1237static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1238 unsigned int length)
1239{
1240 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
1241 u32 *ctx = (u32 *)shash_desc_ctx(shash);
d41519a6 1242 u32 retval;
43b6573b
KM
1243 int err;
1244
1245 shash->tfm = sbi->s_chksum_driver;
1246 shash->flags = 0;
1247 *ctx = F2FS_SUPER_MAGIC;
1248
1249 err = crypto_shash_update(shash, address, length);
1250 BUG_ON(err);
1251
d41519a6
DM
1252 retval = *ctx;
1253 barrier_data(ctx);
1254 return retval;
43b6573b
KM
1255}
1256
1257static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1258 void *buf, size_t buf_size)
1259{
1260 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1261}
1262
704956ec
CY
1263static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1264 const void *address, unsigned int length)
1265{
1266 struct {
1267 struct shash_desc shash;
1268 char ctx[4];
1269 } desc;
1270 int err;
1271
1272 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1273
1274 desc.shash.tfm = sbi->s_chksum_driver;
1275 desc.shash.flags = 0;
1276 *(u32 *)desc.ctx = crc;
1277
1278 err = crypto_shash_update(&desc.shash, address, length);
1279 BUG_ON(err);
1280
1281 return *(u32 *)desc.ctx;
1282}
1283
39a53e0c
JK
1284static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1285{
1286 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1287}
1288
1289static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1290{
1291 return sb->s_fs_info;
1292}
1293
4081363f
JK
1294static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1295{
1296 return F2FS_SB(inode->i_sb);
1297}
1298
1299static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1300{
1301 return F2FS_I_SB(mapping->host);
1302}
1303
1304static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1305{
1306 return F2FS_M_SB(page->mapping);
1307}
1308
39a53e0c
JK
1309static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1310{
1311 return (struct f2fs_super_block *)(sbi->raw_super);
1312}
1313
1314static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1315{
1316 return (struct f2fs_checkpoint *)(sbi->ckpt);
1317}
1318
45590710
GZ
1319static inline struct f2fs_node *F2FS_NODE(struct page *page)
1320{
1321 return (struct f2fs_node *)page_address(page);
1322}
1323
58bfaf44
JK
1324static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1325{
1326 return &((struct f2fs_node *)page_address(page))->i;
1327}
1328
39a53e0c
JK
1329static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1330{
1331 return (struct f2fs_nm_info *)(sbi->nm_info);
1332}
1333
1334static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1335{
1336 return (struct f2fs_sm_info *)(sbi->sm_info);
1337}
1338
1339static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1340{
1341 return (struct sit_info *)(SM_I(sbi)->sit_info);
1342}
1343
1344static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1345{
1346 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1347}
1348
1349static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1350{
1351 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1352}
1353
9df27d98
GZ
1354static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1355{
1356 return sbi->meta_inode->i_mapping;
1357}
1358
4ef51a8f
JK
1359static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1360{
1361 return sbi->node_inode->i_mapping;
1362}
1363
caf0047e
CY
1364static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1365{
fadb2fb8 1366 return test_bit(type, &sbi->s_flag);
caf0047e
CY
1367}
1368
1369static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
39a53e0c 1370{
fadb2fb8 1371 set_bit(type, &sbi->s_flag);
39a53e0c
JK
1372}
1373
caf0047e 1374static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
39a53e0c 1375{
fadb2fb8 1376 clear_bit(type, &sbi->s_flag);
39a53e0c
JK
1377}
1378
d71b5564
JK
1379static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1380{
1381 return le64_to_cpu(cp->checkpoint_ver);
1382}
1383
ced2c7ea
KM
1384static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1385{
1386 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1387 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1388}
1389
aaec2b1d 1390static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
25ca923b
JK
1391{
1392 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
aaec2b1d 1393
25ca923b
JK
1394 return ckpt_flags & f;
1395}
1396
aaec2b1d 1397static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
25ca923b 1398{
aaec2b1d
CY
1399 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1400}
1401
1402static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1403{
1404 unsigned int ckpt_flags;
1405
1406 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
25ca923b
JK
1407 ckpt_flags |= f;
1408 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1409}
1410
aaec2b1d 1411static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
25ca923b 1412{
d1aa2453
CY
1413 unsigned long flags;
1414
1415 spin_lock_irqsave(&sbi->cp_lock, flags);
aaec2b1d 1416 __set_ckpt_flags(F2FS_CKPT(sbi), f);
d1aa2453 1417 spin_unlock_irqrestore(&sbi->cp_lock, flags);
aaec2b1d
CY
1418}
1419
1420static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1421{
1422 unsigned int ckpt_flags;
1423
1424 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
25ca923b
JK
1425 ckpt_flags &= (~f);
1426 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1427}
1428
aaec2b1d
CY
1429static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1430{
d1aa2453
CY
1431 unsigned long flags;
1432
1433 spin_lock_irqsave(&sbi->cp_lock, flags);
aaec2b1d 1434 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
d1aa2453 1435 spin_unlock_irqrestore(&sbi->cp_lock, flags);
aaec2b1d
CY
1436}
1437
22ad0b6a
JK
1438static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1439{
d1aa2453
CY
1440 unsigned long flags;
1441
22ad0b6a
JK
1442 set_sbi_flag(sbi, SBI_NEED_FSCK);
1443
1444 if (lock)
d1aa2453 1445 spin_lock_irqsave(&sbi->cp_lock, flags);
22ad0b6a
JK
1446 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1447 kfree(NM_I(sbi)->nat_bits);
1448 NM_I(sbi)->nat_bits = NULL;
1449 if (lock)
d1aa2453 1450 spin_unlock_irqrestore(&sbi->cp_lock, flags);
22ad0b6a
JK
1451}
1452
1453static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1454 struct cp_control *cpc)
1455{
1456 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1457
c473f1a9 1458 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
22ad0b6a
JK
1459}
1460
e479556b 1461static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
39936837 1462{
b873b798 1463 down_read(&sbi->cp_rwsem);
39936837
JK
1464}
1465
cc15620b
JK
1466static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1467{
1468 return down_read_trylock(&sbi->cp_rwsem);
1469}
1470
e479556b 1471static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
39a53e0c 1472{
b873b798 1473 up_read(&sbi->cp_rwsem);
39a53e0c
JK
1474}
1475
e479556b 1476static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
39a53e0c 1477{
b873b798 1478 down_write(&sbi->cp_rwsem);
39936837
JK
1479}
1480
e479556b 1481static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
39936837 1482{
b873b798 1483 up_write(&sbi->cp_rwsem);
39a53e0c
JK
1484}
1485
119ee914
JK
1486static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1487{
1488 int reason = CP_SYNC;
1489
1490 if (test_opt(sbi, FASTBOOT))
1491 reason = CP_FASTBOOT;
1492 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1493 reason = CP_UMOUNT;
1494 return reason;
1495}
1496
1497static inline bool __remain_node_summaries(int reason)
1498{
c473f1a9 1499 return (reason & (CP_UMOUNT | CP_FASTBOOT));
119ee914
JK
1500}
1501
1502static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1503{
aaec2b1d
CY
1504 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1505 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
119ee914
JK
1506}
1507
39a53e0c
JK
1508/*
1509 * Check whether the given nid is within node id range.
1510 */
064e0823 1511static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
39a53e0c 1512{
d6b7d4b3
CY
1513 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1514 return -EINVAL;
cfb271d4 1515 if (unlikely(nid >= NM_I(sbi)->max_nid))
064e0823
NJ
1516 return -EINVAL;
1517 return 0;
39a53e0c
JK
1518}
1519
39a53e0c
JK
1520/*
1521 * Check whether the inode has blocks or not
1522 */
1523static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1524{
0eb0adad
CY
1525 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1526
000519f2 1527 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
39a53e0c
JK
1528}
1529
4bc8e9bc
CY
1530static inline bool f2fs_has_xattr_block(unsigned int ofs)
1531{
1532 return ofs == XATTR_NODE_OFFSET;
1533}
1534
0abd675e
CY
1535static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1536static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
46008c6d 1537 struct inode *inode, blkcnt_t *count)
39a53e0c 1538{
0abd675e 1539 blkcnt_t diff = 0, release = 0;
daeb433e 1540 block_t avail_user_block_count;
0abd675e
CY
1541 int ret;
1542
1543 ret = dquot_reserve_block(inode, *count);
1544 if (ret)
1545 return ret;
39a53e0c 1546
cb78942b 1547#ifdef CONFIG_F2FS_FAULT_INJECTION
55523519
CY
1548 if (time_to_inject(sbi, FAULT_BLOCK)) {
1549 f2fs_show_injection_info(FAULT_BLOCK);
0abd675e
CY
1550 release = *count;
1551 goto enospc;
55523519 1552 }
cb78942b 1553#endif
dd11a5df
JK
1554 /*
1555 * let's increase this in prior to actual block count change in order
1556 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1557 */
1558 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1559
2555a2d5
JK
1560 spin_lock(&sbi->stat_lock);
1561 sbi->total_valid_block_count += (block_t)(*count);
80d42145
YS
1562 avail_user_block_count = sbi->user_block_count -
1563 sbi->current_reserved_blocks;
daeb433e
CY
1564 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1565 diff = sbi->total_valid_block_count - avail_user_block_count;
dd11a5df 1566 *count -= diff;
0abd675e 1567 release = diff;
daeb433e 1568 sbi->total_valid_block_count = avail_user_block_count;
46008c6d
CY
1569 if (!*count) {
1570 spin_unlock(&sbi->stat_lock);
dd11a5df 1571 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
0abd675e 1572 goto enospc;
46008c6d 1573 }
39a53e0c 1574 }
39a53e0c 1575 spin_unlock(&sbi->stat_lock);
41382ec4 1576
0abd675e
CY
1577 if (release)
1578 dquot_release_reservation_block(inode, release);
1579 f2fs_i_blocks_write(inode, *count, true, true);
1580 return 0;
1581
1582enospc:
1583 dquot_release_reservation_block(inode, release);
1584 return -ENOSPC;
39a53e0c
JK
1585}
1586
da19b0dc 1587static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
39a53e0c 1588 struct inode *inode,
0eb0adad 1589 block_t count)
39a53e0c 1590{
0eb0adad
CY
1591 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1592
39a53e0c 1593 spin_lock(&sbi->stat_lock);
9850cf4a 1594 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
0eb0adad 1595 f2fs_bug_on(sbi, inode->i_blocks < sectors);
39a53e0c 1596 sbi->total_valid_block_count -= (block_t)count;
80d42145
YS
1597 if (sbi->reserved_blocks &&
1598 sbi->current_reserved_blocks < sbi->reserved_blocks)
1599 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1600 sbi->current_reserved_blocks + count);
39a53e0c 1601 spin_unlock(&sbi->stat_lock);
0abd675e 1602 f2fs_i_blocks_write(inode, count, false, true);
39a53e0c
JK
1603}
1604
1605static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1606{
35782b23 1607 atomic_inc(&sbi->nr_pages[count_type]);
7c4abcbe 1608
36951b38
CY
1609 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1610 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
7c4abcbe
CY
1611 return;
1612
caf0047e 1613 set_sbi_flag(sbi, SBI_IS_DIRTY);
39a53e0c
JK
1614}
1615
a7ffdbe2 1616static inline void inode_inc_dirty_pages(struct inode *inode)
39a53e0c 1617{
204706c7 1618 atomic_inc(&F2FS_I(inode)->dirty_pages);
c227f912
CY
1619 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1620 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
39a53e0c
JK
1621}
1622
1623static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1624{
35782b23 1625 atomic_dec(&sbi->nr_pages[count_type]);
39a53e0c
JK
1626}
1627
a7ffdbe2 1628static inline void inode_dec_dirty_pages(struct inode *inode)
39a53e0c 1629{
5ac9f36f
CY
1630 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1631 !S_ISLNK(inode->i_mode))
1fe54f9d
JK
1632 return;
1633
204706c7 1634 atomic_dec(&F2FS_I(inode)->dirty_pages);
c227f912
CY
1635 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1636 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
39a53e0c
JK
1637}
1638
523be8a6 1639static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
39a53e0c 1640{
35782b23 1641 return atomic_read(&sbi->nr_pages[count_type]);
39a53e0c
JK
1642}
1643
204706c7 1644static inline int get_dirty_pages(struct inode *inode)
f8b2c1f9 1645{
204706c7 1646 return atomic_read(&F2FS_I(inode)->dirty_pages);
f8b2c1f9
JK
1647}
1648
5ac206cf
NJ
1649static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1650{
3519e3f9 1651 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
523be8a6
JK
1652 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1653 sbi->log_blocks_per_seg;
1654
1655 return segs / sbi->segs_per_sec;
5ac206cf
NJ
1656}
1657
39a53e0c
JK
1658static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1659{
8b8343fa 1660 return sbi->total_valid_block_count;
39a53e0c
JK
1661}
1662
f83a2584
YH
1663static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1664{
1665 return sbi->discard_blks;
1666}
1667
39a53e0c
JK
1668static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1669{
1670 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1671
1672 /* return NAT or SIT bitmap */
1673 if (flag == NAT_BITMAP)
1674 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1675 else if (flag == SIT_BITMAP)
1676 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1677
1678 return 0;
1679}
1680
55141486
WL
1681static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1682{
1683 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1684}
1685
39a53e0c
JK
1686static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1687{
1688 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1dbe4152
CL
1689 int offset;
1690
55141486 1691 if (__cp_payload(sbi) > 0) {
1dbe4152
CL
1692 if (flag == NAT_BITMAP)
1693 return &ckpt->sit_nat_version_bitmap;
1694 else
65b85ccc 1695 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1dbe4152
CL
1696 } else {
1697 offset = (flag == NAT_BITMAP) ?
25ca923b 1698 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1dbe4152
CL
1699 return &ckpt->sit_nat_version_bitmap + offset;
1700 }
39a53e0c
JK
1701}
1702
1703static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1704{
8508e44a 1705 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
39a53e0c 1706
8508e44a 1707 if (sbi->cur_cp_pack == 2)
39a53e0c 1708 start_addr += sbi->blocks_per_seg;
8508e44a
JK
1709 return start_addr;
1710}
39a53e0c 1711
8508e44a
JK
1712static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1713{
1714 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
39a53e0c 1715
8508e44a
JK
1716 if (sbi->cur_cp_pack == 1)
1717 start_addr += sbi->blocks_per_seg;
39a53e0c
JK
1718 return start_addr;
1719}
1720
8508e44a
JK
1721static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1722{
1723 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1724}
1725
39a53e0c
JK
1726static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1727{
1728 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1729}
1730
0abd675e 1731static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
000519f2 1732 struct inode *inode, bool is_inode)
39a53e0c
JK
1733{
1734 block_t valid_block_count;
1735 unsigned int valid_node_count;
0abd675e
CY
1736 bool quota = inode && !is_inode;
1737
1738 if (quota) {
1739 int ret = dquot_reserve_block(inode, 1);
1740 if (ret)
1741 return ret;
1742 }
39a53e0c
JK
1743
1744 spin_lock(&sbi->stat_lock);
1745
ef86d709 1746 valid_block_count = sbi->total_valid_block_count + 1;
80d42145 1747 if (unlikely(valid_block_count + sbi->current_reserved_blocks >
daeb433e 1748 sbi->user_block_count)) {
39a53e0c 1749 spin_unlock(&sbi->stat_lock);
0abd675e 1750 goto enospc;
39a53e0c
JK
1751 }
1752
ef86d709 1753 valid_node_count = sbi->total_valid_node_count + 1;
cfb271d4 1754 if (unlikely(valid_node_count > sbi->total_node_count)) {
39a53e0c 1755 spin_unlock(&sbi->stat_lock);
0abd675e 1756 goto enospc;
39a53e0c
JK
1757 }
1758
ef86d709
GZ
1759 sbi->total_valid_node_count++;
1760 sbi->total_valid_block_count++;
39a53e0c
JK
1761 spin_unlock(&sbi->stat_lock);
1762
000519f2
CY
1763 if (inode) {
1764 if (is_inode)
1765 f2fs_mark_inode_dirty_sync(inode, true);
1766 else
0abd675e 1767 f2fs_i_blocks_write(inode, 1, true, true);
000519f2 1768 }
ef86d709 1769
41382ec4 1770 percpu_counter_inc(&sbi->alloc_valid_block_count);
0abd675e
CY
1771 return 0;
1772
1773enospc:
1774 if (quota)
1775 dquot_release_reservation_block(inode, 1);
1776 return -ENOSPC;
39a53e0c
JK
1777}
1778
1779static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
000519f2 1780 struct inode *inode, bool is_inode)
39a53e0c
JK
1781{
1782 spin_lock(&sbi->stat_lock);
1783
9850cf4a
JK
1784 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1785 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
000519f2 1786 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
39a53e0c 1787
ef86d709
GZ
1788 sbi->total_valid_node_count--;
1789 sbi->total_valid_block_count--;
80d42145
YS
1790 if (sbi->reserved_blocks &&
1791 sbi->current_reserved_blocks < sbi->reserved_blocks)
1792 sbi->current_reserved_blocks++;
39a53e0c
JK
1793
1794 spin_unlock(&sbi->stat_lock);
0abd675e
CY
1795
1796 if (!is_inode)
1797 f2fs_i_blocks_write(inode, 1, false, true);
39a53e0c
JK
1798}
1799
1800static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1801{
8b8343fa 1802 return sbi->total_valid_node_count;
39a53e0c
JK
1803}
1804
1805static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1806{
513c5f37 1807 percpu_counter_inc(&sbi->total_valid_inode_count);
39a53e0c
JK
1808}
1809
0e80220a 1810static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
39a53e0c 1811{
513c5f37 1812 percpu_counter_dec(&sbi->total_valid_inode_count);
39a53e0c
JK
1813}
1814
513c5f37 1815static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
39a53e0c 1816{
513c5f37 1817 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
39a53e0c
JK
1818}
1819
a56c7c6f
JK
1820static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1821 pgoff_t index, bool for_write)
1822{
c41f3cc3
JK
1823#ifdef CONFIG_F2FS_FAULT_INJECTION
1824 struct page *page = find_lock_page(mapping, index);
cac5a3d8 1825
c41f3cc3
JK
1826 if (page)
1827 return page;
1828
55523519
CY
1829 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
1830 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
c41f3cc3 1831 return NULL;
55523519 1832 }
c41f3cc3 1833#endif
a56c7c6f
JK
1834 if (!for_write)
1835 return grab_cache_page(mapping, index);
1836 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1837}
1838
01eccef7
CY
1839static inline struct page *f2fs_pagecache_get_page(
1840 struct address_space *mapping, pgoff_t index,
1841 int fgp_flags, gfp_t gfp_mask)
1842{
1843#ifdef CONFIG_F2FS_FAULT_INJECTION
1844 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
1845 f2fs_show_injection_info(FAULT_PAGE_GET);
1846 return NULL;
1847 }
1848#endif
1849 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
1850}
1851
6e2c64ad
JK
1852static inline void f2fs_copy_page(struct page *src, struct page *dst)
1853{
1854 char *src_kaddr = kmap(src);
1855 char *dst_kaddr = kmap(dst);
1856
1857 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1858 kunmap(dst);
1859 kunmap(src);
1860}
1861
39a53e0c
JK
1862static inline void f2fs_put_page(struct page *page, int unlock)
1863{
031fa8cc 1864 if (!page)
39a53e0c
JK
1865 return;
1866
1867 if (unlock) {
9850cf4a 1868 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
39a53e0c
JK
1869 unlock_page(page);
1870 }
09cbfeaf 1871 put_page(page);
39a53e0c
JK
1872}
1873
1874static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1875{
1876 if (dn->node_page)
1877 f2fs_put_page(dn->node_page, 1);
1878 if (dn->inode_page && dn->node_page != dn->inode_page)
1879 f2fs_put_page(dn->inode_page, 0);
1880 dn->node_page = NULL;
1881 dn->inode_page = NULL;
1882}
1883
1884static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
e8512d2e 1885 size_t size)
39a53e0c 1886{
e8512d2e 1887 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
39a53e0c
JK
1888}
1889
7bd59381
GZ
1890static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1891 gfp_t flags)
1892{
1893 void *entry;
7bd59381 1894
80c54505
JK
1895 entry = kmem_cache_alloc(cachep, flags);
1896 if (!entry)
1897 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
7bd59381
GZ
1898 return entry;
1899}
1900
740432f8
JK
1901static inline struct bio *f2fs_bio_alloc(int npages)
1902{
1903 struct bio *bio;
1904
1905 /* No failure on bio allocation */
740432f8 1906 bio = bio_alloc(GFP_NOIO, npages);
80c54505
JK
1907 if (!bio)
1908 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
740432f8
JK
1909 return bio;
1910}
1911
9be32d72
JK
1912static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1913 unsigned long index, void *item)
1914{
1915 while (radix_tree_insert(root, index, item))
1916 cond_resched();
1917}
1918
39a53e0c
JK
1919#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1920
1921static inline bool IS_INODE(struct page *page)
1922{
45590710 1923 struct f2fs_node *p = F2FS_NODE(page);
cac5a3d8 1924
39a53e0c
JK
1925 return RAW_IS_INODE(p);
1926}
1927
7a2af766
CY
1928static inline int offset_in_addr(struct f2fs_inode *i)
1929{
1930 return (i->i_inline & F2FS_EXTRA_ATTR) ?
1931 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
1932}
1933
39a53e0c
JK
1934static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1935{
1936 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1937}
1938
7a2af766
CY
1939static inline int f2fs_has_extra_attr(struct inode *inode);
1940static inline block_t datablock_addr(struct inode *inode,
1941 struct page *node_page, unsigned int offset)
39a53e0c
JK
1942{
1943 struct f2fs_node *raw_node;
1944 __le32 *addr_array;
7a2af766
CY
1945 int base = 0;
1946 bool is_inode = IS_INODE(node_page);
cac5a3d8 1947
45590710 1948 raw_node = F2FS_NODE(node_page);
7a2af766
CY
1949
1950 /* from GC path only */
1951 if (!inode) {
1952 if (is_inode)
1953 base = offset_in_addr(&raw_node->i);
1954 } else if (f2fs_has_extra_attr(inode) && is_inode) {
1955 base = get_extra_isize(inode);
1956 }
1957
39a53e0c 1958 addr_array = blkaddr_in_node(raw_node);
7a2af766 1959 return le32_to_cpu(addr_array[base + offset]);
39a53e0c
JK
1960}
1961
1962static inline int f2fs_test_bit(unsigned int nr, char *addr)
1963{
1964 int mask;
1965
1966 addr += (nr >> 3);
1967 mask = 1 << (7 - (nr & 0x07));
1968 return mask & *addr;
1969}
1970
a66cdd98
JK
1971static inline void f2fs_set_bit(unsigned int nr, char *addr)
1972{
1973 int mask;
1974
1975 addr += (nr >> 3);
1976 mask = 1 << (7 - (nr & 0x07));
1977 *addr |= mask;
1978}
1979
1980static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1981{
1982 int mask;
1983
1984 addr += (nr >> 3);
1985 mask = 1 << (7 - (nr & 0x07));
1986 *addr &= ~mask;
1987}
1988
52aca074 1989static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
39a53e0c
JK
1990{
1991 int mask;
1992 int ret;
1993
1994 addr += (nr >> 3);
1995 mask = 1 << (7 - (nr & 0x07));
1996 ret = mask & *addr;
1997 *addr |= mask;
1998 return ret;
1999}
2000
52aca074 2001static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
39a53e0c
JK
2002{
2003 int mask;
2004 int ret;
2005
2006 addr += (nr >> 3);
2007 mask = 1 << (7 - (nr & 0x07));
2008 ret = mask & *addr;
2009 *addr &= ~mask;
2010 return ret;
2011}
2012
c6ac4c0e
GZ
2013static inline void f2fs_change_bit(unsigned int nr, char *addr)
2014{
2015 int mask;
2016
2017 addr += (nr >> 3);
2018 mask = 1 << (7 - (nr & 0x07));
2019 *addr ^= mask;
2020}
2021
5c57132e
CY
2022#define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
2023#define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
2024#define F2FS_FL_INHERITED (FS_PROJINHERIT_FL)
2025
2026static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2027{
2028 if (S_ISDIR(mode))
2029 return flags;
2030 else if (S_ISREG(mode))
2031 return flags & F2FS_REG_FLMASK;
2032 else
2033 return flags & F2FS_OTHER_FLMASK;
2034}
2035
39a53e0c
JK
2036/* used for f2fs_inode_info->flags */
2037enum {
2038 FI_NEW_INODE, /* indicate newly allocated inode */
b3783873 2039 FI_DIRTY_INODE, /* indicate inode is dirty or not */
26de9b11 2040 FI_AUTO_RECOVER, /* indicate inode is recoverable */
ed57c27f 2041 FI_DIRTY_DIR, /* indicate directory has dirty pages */
39a53e0c
JK
2042 FI_INC_LINK, /* need to increment i_nlink */
2043 FI_ACL_MODE, /* indicate acl mode */
2044 FI_NO_ALLOC, /* should not allocate any blocks */
c9b63bd0 2045 FI_FREE_NID, /* free allocated nide */
c11abd1a 2046 FI_NO_EXTENT, /* not to use the extent cache */
444c580f 2047 FI_INLINE_XATTR, /* used for inline xattr */
1001b347 2048 FI_INLINE_DATA, /* used for inline data*/
34d67deb 2049 FI_INLINE_DENTRY, /* used for inline dentry */
fff04f90
JK
2050 FI_APPEND_WRITE, /* inode has appended data */
2051 FI_UPDATE_WRITE, /* inode has in-place-update data */
88b88a66
JK
2052 FI_NEED_IPU, /* used for ipu per file */
2053 FI_ATOMIC_FILE, /* indicate atomic file */
5fe45743 2054 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
02a1335f 2055 FI_VOLATILE_FILE, /* indicate volatile file */
3c6c2beb 2056 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1e84371f 2057 FI_DROP_CACHE, /* drop dirty page cache */
b3d208f9 2058 FI_DATA_EXIST, /* indicate data exists */
510022a8 2059 FI_INLINE_DOTS, /* indicate inline dot dentries */
d323d005 2060 FI_DO_DEFRAG, /* indicate defragment is running */
c227f912 2061 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
dc91de78 2062 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
ef095d19 2063 FI_HOT_DATA, /* indicate file is hot */
7a2af766 2064 FI_EXTRA_ATTR, /* indicate file has extra attribute */
5c57132e 2065 FI_PROJ_INHERIT, /* indicate file inherits projectid */
39a53e0c
JK
2066};
2067
205b9822
JK
2068static inline void __mark_inode_dirty_flag(struct inode *inode,
2069 int flag, bool set)
2070{
2071 switch (flag) {
2072 case FI_INLINE_XATTR:
2073 case FI_INLINE_DATA:
2074 case FI_INLINE_DENTRY:
2075 if (set)
2076 return;
2077 case FI_DATA_EXIST:
2078 case FI_INLINE_DOTS:
7c45729a 2079 f2fs_mark_inode_dirty_sync(inode, true);
205b9822
JK
2080 }
2081}
2082
91942321 2083static inline void set_inode_flag(struct inode *inode, int flag)
39a53e0c 2084{
91942321
JK
2085 if (!test_bit(flag, &F2FS_I(inode)->flags))
2086 set_bit(flag, &F2FS_I(inode)->flags);
205b9822 2087 __mark_inode_dirty_flag(inode, flag, true);
39a53e0c
JK
2088}
2089
91942321 2090static inline int is_inode_flag_set(struct inode *inode, int flag)
39a53e0c 2091{
91942321 2092 return test_bit(flag, &F2FS_I(inode)->flags);
39a53e0c
JK
2093}
2094
91942321 2095static inline void clear_inode_flag(struct inode *inode, int flag)
39a53e0c 2096{
91942321
JK
2097 if (test_bit(flag, &F2FS_I(inode)->flags))
2098 clear_bit(flag, &F2FS_I(inode)->flags);
205b9822 2099 __mark_inode_dirty_flag(inode, flag, false);
39a53e0c
JK
2100}
2101
91942321 2102static inline void set_acl_inode(struct inode *inode, umode_t mode)
39a53e0c 2103{
91942321
JK
2104 F2FS_I(inode)->i_acl_mode = mode;
2105 set_inode_flag(inode, FI_ACL_MODE);
7c45729a 2106 f2fs_mark_inode_dirty_sync(inode, false);
39a53e0c
JK
2107}
2108
a1961246 2109static inline void f2fs_i_links_write(struct inode *inode, bool inc)
39a53e0c 2110{
a1961246
JK
2111 if (inc)
2112 inc_nlink(inode);
2113 else
2114 drop_nlink(inode);
7c45729a 2115 f2fs_mark_inode_dirty_sync(inode, true);
a1961246
JK
2116}
2117
8edd03c8 2118static inline void f2fs_i_blocks_write(struct inode *inode,
0abd675e 2119 block_t diff, bool add, bool claim)
8edd03c8 2120{
26de9b11
JK
2121 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2122 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2123
0abd675e
CY
2124 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2125 if (add) {
2126 if (claim)
2127 dquot_claim_block(inode, diff);
2128 else
2129 dquot_alloc_block_nofail(inode, diff);
2130 } else {
2131 dquot_free_block(inode, diff);
2132 }
2133
7c45729a 2134 f2fs_mark_inode_dirty_sync(inode, true);
26de9b11
JK
2135 if (clean || recover)
2136 set_inode_flag(inode, FI_AUTO_RECOVER);
8edd03c8
JK
2137}
2138
fc9581c8
JK
2139static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2140{
26de9b11
JK
2141 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2142 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2143
fc9581c8
JK
2144 if (i_size_read(inode) == i_size)
2145 return;
2146
2147 i_size_write(inode, i_size);
7c45729a 2148 f2fs_mark_inode_dirty_sync(inode, true);
26de9b11
JK
2149 if (clean || recover)
2150 set_inode_flag(inode, FI_AUTO_RECOVER);
39a53e0c
JK
2151}
2152
205b9822 2153static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
39a53e0c 2154{
205b9822 2155 F2FS_I(inode)->i_current_depth = depth;
7c45729a 2156 f2fs_mark_inode_dirty_sync(inode, true);
39a53e0c
JK
2157}
2158
205b9822 2159static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
444c580f 2160{
205b9822 2161 F2FS_I(inode)->i_xattr_nid = xnid;
7c45729a 2162 f2fs_mark_inode_dirty_sync(inode, true);
205b9822
JK
2163}
2164
2165static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2166{
2167 F2FS_I(inode)->i_pino = pino;
7c45729a 2168 f2fs_mark_inode_dirty_sync(inode, true);
205b9822
JK
2169}
2170
91942321 2171static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
444c580f 2172{
205b9822
JK
2173 struct f2fs_inode_info *fi = F2FS_I(inode);
2174
444c580f 2175 if (ri->i_inline & F2FS_INLINE_XATTR)
205b9822 2176 set_bit(FI_INLINE_XATTR, &fi->flags);
1001b347 2177 if (ri->i_inline & F2FS_INLINE_DATA)
205b9822 2178 set_bit(FI_INLINE_DATA, &fi->flags);
34d67deb 2179 if (ri->i_inline & F2FS_INLINE_DENTRY)
205b9822 2180 set_bit(FI_INLINE_DENTRY, &fi->flags);
b3d208f9 2181 if (ri->i_inline & F2FS_DATA_EXIST)
205b9822 2182 set_bit(FI_DATA_EXIST, &fi->flags);
510022a8 2183 if (ri->i_inline & F2FS_INLINE_DOTS)
205b9822 2184 set_bit(FI_INLINE_DOTS, &fi->flags);
7a2af766
CY
2185 if (ri->i_inline & F2FS_EXTRA_ATTR)
2186 set_bit(FI_EXTRA_ATTR, &fi->flags);
444c580f
JK
2187}
2188
91942321 2189static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
444c580f
JK
2190{
2191 ri->i_inline = 0;
2192
91942321 2193 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
444c580f 2194 ri->i_inline |= F2FS_INLINE_XATTR;
91942321 2195 if (is_inode_flag_set(inode, FI_INLINE_DATA))
1001b347 2196 ri->i_inline |= F2FS_INLINE_DATA;
91942321 2197 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
34d67deb 2198 ri->i_inline |= F2FS_INLINE_DENTRY;
91942321 2199 if (is_inode_flag_set(inode, FI_DATA_EXIST))
b3d208f9 2200 ri->i_inline |= F2FS_DATA_EXIST;
91942321 2201 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
510022a8 2202 ri->i_inline |= F2FS_INLINE_DOTS;
7a2af766
CY
2203 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2204 ri->i_inline |= F2FS_EXTRA_ATTR;
2205}
2206
2207static inline int f2fs_has_extra_attr(struct inode *inode)
2208{
2209 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
444c580f
JK
2210}
2211
987c7c31
CY
2212static inline int f2fs_has_inline_xattr(struct inode *inode)
2213{
91942321 2214 return is_inode_flag_set(inode, FI_INLINE_XATTR);
987c7c31
CY
2215}
2216
81ca7350 2217static inline unsigned int addrs_per_inode(struct inode *inode)
de93653f 2218{
6afc662e 2219 return CUR_ADDRS_PER_INODE(inode) - F2FS_INLINE_XATTR_ADDRS(inode);
de93653f
JK
2220}
2221
6afc662e 2222static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
65985d93 2223{
695fd1ed 2224 struct f2fs_inode *ri = F2FS_INODE(page);
cac5a3d8 2225
65985d93 2226 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
6afc662e 2227 F2FS_INLINE_XATTR_ADDRS(inode)]);
65985d93
JK
2228}
2229
2230static inline int inline_xattr_size(struct inode *inode)
2231{
6afc662e 2232 return get_inline_xattr_addrs(inode) * sizeof(__le32);
65985d93
JK
2233}
2234
0dbdc2ae
JK
2235static inline int f2fs_has_inline_data(struct inode *inode)
2236{
91942321 2237 return is_inode_flag_set(inode, FI_INLINE_DATA);
0dbdc2ae
JK
2238}
2239
b3d208f9
JK
2240static inline int f2fs_exist_data(struct inode *inode)
2241{
91942321 2242 return is_inode_flag_set(inode, FI_DATA_EXIST);
b3d208f9
JK
2243}
2244
510022a8
JK
2245static inline int f2fs_has_inline_dots(struct inode *inode)
2246{
91942321 2247 return is_inode_flag_set(inode, FI_INLINE_DOTS);
510022a8
JK
2248}
2249
88b88a66
JK
2250static inline bool f2fs_is_atomic_file(struct inode *inode)
2251{
91942321 2252 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
88b88a66
JK
2253}
2254
5fe45743
CY
2255static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2256{
2257 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2258}
2259
02a1335f
JK
2260static inline bool f2fs_is_volatile_file(struct inode *inode)
2261{
91942321 2262 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
02a1335f
JK
2263}
2264
3c6c2beb
JK
2265static inline bool f2fs_is_first_block_written(struct inode *inode)
2266{
91942321 2267 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3c6c2beb
JK
2268}
2269
1e84371f
JK
2270static inline bool f2fs_is_drop_cache(struct inode *inode)
2271{
91942321 2272 return is_inode_flag_set(inode, FI_DROP_CACHE);
1e84371f
JK
2273}
2274
f2470371 2275static inline void *inline_data_addr(struct inode *inode, struct page *page)
1001b347 2276{
695fd1ed 2277 struct f2fs_inode *ri = F2FS_INODE(page);
7a2af766 2278 int extra_size = get_extra_isize(inode);
cac5a3d8 2279
7a2af766 2280 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
1001b347
HL
2281}
2282
34d67deb
CY
2283static inline int f2fs_has_inline_dentry(struct inode *inode)
2284{
91942321 2285 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
34d67deb
CY
2286}
2287
9486ba44
JK
2288static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
2289{
2290 if (!f2fs_has_inline_dentry(dir))
2291 kunmap(page);
2292}
2293
b5492af7
JK
2294static inline int is_file(struct inode *inode, int type)
2295{
2296 return F2FS_I(inode)->i_advise & type;
2297}
2298
2299static inline void set_file(struct inode *inode, int type)
2300{
2301 F2FS_I(inode)->i_advise |= type;
7c45729a 2302 f2fs_mark_inode_dirty_sync(inode, true);
b5492af7
JK
2303}
2304
2305static inline void clear_file(struct inode *inode, int type)
2306{
2307 F2FS_I(inode)->i_advise &= ~type;
7c45729a 2308 f2fs_mark_inode_dirty_sync(inode, true);
b5492af7
JK
2309}
2310
26787236
JK
2311static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2312{
a0d00fad
CY
2313 bool ret;
2314
26787236
JK
2315 if (dsync) {
2316 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
26787236
JK
2317
2318 spin_lock(&sbi->inode_lock[DIRTY_META]);
2319 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2320 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2321 return ret;
2322 }
2323 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2324 file_keep_isize(inode) ||
2325 i_size_read(inode) & PAGE_MASK)
2326 return false;
a0d00fad
CY
2327
2328 down_read(&F2FS_I(inode)->i_sem);
2329 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2330 up_read(&F2FS_I(inode)->i_sem);
2331
2332 return ret;
b5492af7
JK
2333}
2334
77888c1e
JK
2335static inline int f2fs_readonly(struct super_block *sb)
2336{
2337 return sb->s_flags & MS_RDONLY;
2338}
2339
1e968fdf
JK
2340static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2341{
aaec2b1d 2342 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
1e968fdf
JK
2343}
2344
eaa693f4
JK
2345static inline bool is_dot_dotdot(const struct qstr *str)
2346{
2347 if (str->len == 1 && str->name[0] == '.')
2348 return true;
2349
2350 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2351 return true;
2352
2353 return false;
2354}
2355
3e72f721
JK
2356static inline bool f2fs_may_extent_tree(struct inode *inode)
2357{
3e72f721 2358 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
91942321 2359 is_inode_flag_set(inode, FI_NO_EXTENT))
3e72f721
JK
2360 return false;
2361
886f56f9 2362 return S_ISREG(inode->i_mode);
3e72f721
JK
2363}
2364
1ecc0c5c
CY
2365static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2366 size_t size, gfp_t flags)
0414b004 2367{
2c63fead 2368#ifdef CONFIG_F2FS_FAULT_INJECTION
55523519
CY
2369 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2370 f2fs_show_injection_info(FAULT_KMALLOC);
2c63fead 2371 return NULL;
55523519 2372 }
2c63fead 2373#endif
0414b004
JK
2374 return kmalloc(size, flags);
2375}
2376
7a2af766 2377static inline int get_extra_isize(struct inode *inode)
f2470371 2378{
7a2af766 2379 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
f2470371
CY
2380}
2381
6afc662e
CY
2382static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block *sb);
2383static inline int get_inline_xattr_addrs(struct inode *inode)
2384{
2385 return F2FS_I(inode)->i_inline_xattr_size;
2386}
2387
a6dda0e6 2388#define get_inode_mode(i) \
91942321 2389 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
a6dda0e6
CH
2390 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2391
7a2af766
CY
2392#define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2393 (offsetof(struct f2fs_inode, i_extra_end) - \
2394 offsetof(struct f2fs_inode, i_extra_isize)) \
2395
5c57132e
CY
2396#define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2397#define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2398 ((offsetof(typeof(*f2fs_inode), field) + \
2399 sizeof((f2fs_inode)->field)) \
2400 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2401
b0af6d49
CY
2402static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2403{
2404 int i;
2405
2406 spin_lock(&sbi->iostat_lock);
2407 for (i = 0; i < NR_IO_TYPE; i++)
2408 sbi->write_iostat[i] = 0;
2409 spin_unlock(&sbi->iostat_lock);
2410}
2411
2412static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2413 enum iostat_type type, unsigned long long io_bytes)
2414{
2415 if (!sbi->iostat_enable)
2416 return;
2417 spin_lock(&sbi->iostat_lock);
2418 sbi->write_iostat[type] += io_bytes;
2419
2420 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2421 sbi->write_iostat[APP_BUFFERED_IO] =
2422 sbi->write_iostat[APP_WRITE_IO] -
2423 sbi->write_iostat[APP_DIRECT_IO];
2424 spin_unlock(&sbi->iostat_lock);
2425}
2426
39a53e0c
JK
2427/*
2428 * file.c
2429 */
cac5a3d8
DS
2430int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2431void truncate_data_blocks(struct dnode_of_data *dn);
2432int truncate_blocks(struct inode *inode, u64 from, bool lock);
2433int f2fs_truncate(struct inode *inode);
a528d35e
DH
2434int f2fs_getattr(const struct path *path, struct kstat *stat,
2435 u32 request_mask, unsigned int flags);
cac5a3d8
DS
2436int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2437int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2438int truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2439long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2440long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
39a53e0c
JK
2441
2442/*
2443 * inode.c
2444 */
cac5a3d8 2445void f2fs_set_inode_flags(struct inode *inode);
704956ec
CY
2446bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2447void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
cac5a3d8
DS
2448struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2449struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2450int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2451int update_inode(struct inode *inode, struct page *node_page);
2452int update_inode_page(struct inode *inode);
2453int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2454void f2fs_evict_inode(struct inode *inode);
2455void handle_failed_inode(struct inode *inode);
39a53e0c
JK
2456
2457/*
2458 * namei.c
2459 */
2460struct dentry *f2fs_get_parent(struct dentry *child);
2461
2462/*
2463 * dir.c
2464 */
cac5a3d8
DS
2465void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
2466unsigned char get_de_type(struct f2fs_dir_entry *de);
2467struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
2468 f2fs_hash_t namehash, int *max_slots,
2469 struct f2fs_dentry_ptr *d);
2470int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2471 unsigned int start_pos, struct fscrypt_str *fstr);
2472void do_make_empty_dir(struct inode *inode, struct inode *parent,
2473 struct f2fs_dentry_ptr *d);
2474struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
2475 const struct qstr *new_name,
2476 const struct qstr *orig_name, struct page *dpage);
2477void update_parent_metadata(struct inode *dir, struct inode *inode,
2478 unsigned int current_depth);
2479int room_for_filename(const void *bitmap, int slots, int max_slots);
2480void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2481struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2482 struct fscrypt_name *fname, struct page **res_page);
2483struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2484 const struct qstr *child, struct page **res_page);
2485struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2486ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2487 struct page **page);
2488void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2489 struct page *page, struct inode *inode);
cac5a3d8
DS
2490void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2491 const struct qstr *name, f2fs_hash_t name_hash,
2492 unsigned int bit_pos);
2493int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2494 const struct qstr *orig_name,
2495 struct inode *inode, nid_t ino, umode_t mode);
2496int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname,
2497 struct inode *inode, nid_t ino, umode_t mode);
2498int __f2fs_add_link(struct inode *dir, const struct qstr *name,
2499 struct inode *inode, nid_t ino, umode_t mode);
2500void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2501 struct inode *dir, struct inode *inode);
2502int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2503bool f2fs_empty_dir(struct inode *dir);
39a53e0c 2504
b7f7a5e0
AV
2505static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2506{
2b0143b5 2507 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
510022a8 2508 inode, inode->i_ino, inode->i_mode);
b7f7a5e0
AV
2509}
2510
39a53e0c
JK
2511/*
2512 * super.c
2513 */
cac5a3d8
DS
2514int f2fs_inode_dirtied(struct inode *inode, bool sync);
2515void f2fs_inode_synced(struct inode *inode);
4b2414d0
CY
2516void f2fs_enable_quota_files(struct f2fs_sb_info *sbi);
2517void f2fs_quota_off_umount(struct super_block *sb);
cac5a3d8
DS
2518int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2519int f2fs_sync_fs(struct super_block *sb, int sync);
a07ef784 2520extern __printf(3, 4)
cac5a3d8 2521void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
984ec63c 2522int sanity_check_ckpt(struct f2fs_sb_info *sbi);
39a53e0c
JK
2523
2524/*
2525 * hash.c
2526 */
6332cd32
JK
2527f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
2528 struct fscrypt_name *fname);
39a53e0c
JK
2529
2530/*
2531 * node.c
2532 */
2533struct dnode_of_data;
2534struct node_info;
2535
cac5a3d8
DS
2536bool available_free_memory(struct f2fs_sb_info *sbi, int type);
2537int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2538bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2539bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2540void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
2541pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2542int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2543int truncate_inode_blocks(struct inode *inode, pgoff_t from);
9c77f754 2544int truncate_xattr_node(struct inode *inode);
cac5a3d8
DS
2545int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2546int remove_inode_page(struct inode *inode);
2547struct page *new_inode_page(struct inode *inode);
5f4ce6ab 2548struct page *new_node_page(struct dnode_of_data *dn, unsigned int ofs);
cac5a3d8
DS
2549void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2550struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2551struct page *get_node_page_ra(struct page *parent, int start);
2552void move_node_page(struct page *node_page, int gc_type);
2553int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2554 struct writeback_control *wbc, bool atomic);
401db79f 2555int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc,
b0af6d49 2556 bool do_balance, enum iostat_type io_type);
22ad0b6a 2557void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
cac5a3d8
DS
2558bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2559void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2560void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2561int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2562void recover_inline_xattr(struct inode *inode, struct page *page);
d260081c 2563int recover_xattr_data(struct inode *inode, struct page *page,
cac5a3d8
DS
2564 block_t blkaddr);
2565int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2566int restore_node_summary(struct f2fs_sb_info *sbi,
2567 unsigned int segno, struct f2fs_summary_block *sum);
22ad0b6a 2568void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
cac5a3d8
DS
2569int build_node_manager(struct f2fs_sb_info *sbi);
2570void destroy_node_manager(struct f2fs_sb_info *sbi);
6e6093a8 2571int __init create_node_manager_caches(void);
39a53e0c
JK
2572void destroy_node_manager_caches(void);
2573
2574/*
2575 * segment.c
2576 */
b3a97a2a 2577bool need_SSR(struct f2fs_sb_info *sbi);
cac5a3d8 2578void register_inmem_page(struct inode *inode, struct page *page);
57864ae5 2579void drop_inmem_pages_all(struct f2fs_sb_info *sbi);
cac5a3d8 2580void drop_inmem_pages(struct inode *inode);
8c242db9 2581void drop_inmem_page(struct inode *inode, struct page *page);
cac5a3d8
DS
2582int commit_inmem_pages(struct inode *inode);
2583void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2584void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
39d787be 2585int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
cac5a3d8 2586int create_flush_cmd_control(struct f2fs_sb_info *sbi);
1228b482 2587int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
cac5a3d8
DS
2588void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2589void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2590bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
78997b56
CY
2591void init_discard_policy(struct discard_policy *dpolicy, int discard_type,
2592 unsigned int granularity);
cac5a3d8 2593void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
cce13252 2594void stop_discard_thread(struct f2fs_sb_info *sbi);
cf5c759f 2595bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
cac5a3d8
DS
2596void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2597void release_discard_addrs(struct f2fs_sb_info *sbi);
2598int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2599void allocate_new_segments(struct f2fs_sb_info *sbi);
2600int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2601bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2602struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2603void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr);
b0af6d49
CY
2604void write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
2605 enum iostat_type io_type);
cac5a3d8
DS
2606void write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2607void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio);
d1b3e72d 2608int rewrite_data_page(struct f2fs_io_info *fio);
cac5a3d8
DS
2609void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2610 block_t old_blkaddr, block_t new_blkaddr,
2611 bool recover_curseg, bool recover_newaddr);
2612void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2613 block_t old_addr, block_t new_addr,
2614 unsigned char version, bool recover_curseg,
2615 bool recover_newaddr);
2616void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2617 block_t old_blkaddr, block_t *new_blkaddr,
fb830fc5
CY
2618 struct f2fs_summary *sum, int type,
2619 struct f2fs_io_info *fio, bool add_list);
cac5a3d8
DS
2620void f2fs_wait_on_page_writeback(struct page *page,
2621 enum page_type type, bool ordered);
d4c759ee 2622void f2fs_wait_on_block_writeback(struct f2fs_sb_info *sbi, block_t blkaddr);
cac5a3d8
DS
2623void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2624void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2625int lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2626 unsigned int val, int alloc);
2627void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2628int build_segment_manager(struct f2fs_sb_info *sbi);
2629void destroy_segment_manager(struct f2fs_sb_info *sbi);
7fd9e544
JK
2630int __init create_segment_manager_caches(void);
2631void destroy_segment_manager_caches(void);
39a53e0c
JK
2632
2633/*
2634 * checkpoint.c
2635 */
cac5a3d8
DS
2636void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2637struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2638struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2639struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2640bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
2641int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2642 int type, bool sync);
2643void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2644long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
b0af6d49 2645 long nr_to_write, enum iostat_type io_type);
cac5a3d8
DS
2646void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2647void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2648void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2649bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
39d787be
CY
2650void set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
2651 unsigned int devidx, int type);
2652bool is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
2653 unsigned int devidx, int type);
cac5a3d8
DS
2654int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2655int acquire_orphan_inode(struct f2fs_sb_info *sbi);
2656void release_orphan_inode(struct f2fs_sb_info *sbi);
2657void add_orphan_inode(struct inode *inode);
2658void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2659int recover_orphan_inodes(struct f2fs_sb_info *sbi);
2660int get_valid_checkpoint(struct f2fs_sb_info *sbi);
2661void update_dirty_page(struct inode *inode, struct page *page);
2662void remove_dirty_inode(struct inode *inode);
2663int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2664int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2665void init_ino_entry_info(struct f2fs_sb_info *sbi);
6e6093a8 2666int __init create_checkpoint_caches(void);
39a53e0c
JK
2667void destroy_checkpoint_caches(void);
2668
2669/*
2670 * data.c
2671 */
b9109b0e
JK
2672void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
2673void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
942fd319 2674 struct inode *inode, nid_t ino, pgoff_t idx,
b9109b0e
JK
2675 enum page_type type);
2676void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
cac5a3d8 2677int f2fs_submit_page_bio(struct f2fs_io_info *fio);
b9109b0e 2678int f2fs_submit_page_write(struct f2fs_io_info *fio);
cac5a3d8
DS
2679struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2680 block_t blk_addr, struct bio *bio);
2681int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2682void set_data_blkaddr(struct dnode_of_data *dn);
2683void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2684int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2685int reserve_new_block(struct dnode_of_data *dn);
2686int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2687int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2688int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2689struct page *get_read_data_page(struct inode *inode, pgoff_t index,
2690 int op_flags, bool for_write);
2691struct page *find_data_page(struct inode *inode, pgoff_t index);
2692struct page *get_lock_data_page(struct inode *inode, pgoff_t index,
2693 bool for_write);
2694struct page *get_new_data_page(struct inode *inode,
2695 struct page *ipage, pgoff_t index, bool new_i_size);
2696int do_write_data_page(struct f2fs_io_info *fio);
2697int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2698 int create, int flag);
2699int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2700 u64 start, u64 len);
2701void f2fs_set_page_dirty_nobuffers(struct page *page);
b0af6d49
CY
2702int __f2fs_write_data_pages(struct address_space *mapping,
2703 struct writeback_control *wbc,
2704 enum iostat_type io_type);
cac5a3d8
DS
2705void f2fs_invalidate_page(struct page *page, unsigned int offset,
2706 unsigned int length);
2707int f2fs_release_page(struct page *page, gfp_t wait);
5b7a487c 2708#ifdef CONFIG_MIGRATION
cac5a3d8
DS
2709int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2710 struct page *page, enum migrate_mode mode);
5b7a487c 2711#endif
39a53e0c
JK
2712
2713/*
2714 * gc.c
2715 */
cac5a3d8
DS
2716int start_gc_thread(struct f2fs_sb_info *sbi);
2717void stop_gc_thread(struct f2fs_sb_info *sbi);
2718block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
e066b83c
JK
2719int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
2720 unsigned int segno);
cac5a3d8 2721void build_gc_manager(struct f2fs_sb_info *sbi);
39a53e0c
JK
2722
2723/*
2724 * recovery.c
2725 */
cac5a3d8
DS
2726int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
2727bool space_for_roll_forward(struct f2fs_sb_info *sbi);
39a53e0c
JK
2728
2729/*
2730 * debug.c
2731 */
2732#ifdef CONFIG_F2FS_STAT_FS
2733struct f2fs_stat_info {
2734 struct list_head stat_list;
2735 struct f2fs_sb_info *sbi;
39a53e0c
JK
2736 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2737 int main_area_segs, main_area_sections, main_area_zones;
5b7ee374
CY
2738 unsigned long long hit_largest, hit_cached, hit_rbtree;
2739 unsigned long long hit_total, total_ext;
c00ba554 2740 int ext_tree, zombie_tree, ext_node;
35782b23
JK
2741 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2742 int inmem_pages;
0f18b462 2743 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
5b0ef73c
JK
2744 int nats, dirty_nats, sits, dirty_sits;
2745 int free_nids, avail_nids, alloc_nids;
39a53e0c 2746 int total_count, utilization;
8b8dd65f 2747 int bg_gc, nr_wb_cp_data, nr_wb_data;
14d8d5f7
CY
2748 int nr_flushing, nr_flushed, flush_list_empty;
2749 int nr_discarding, nr_discarded;
5f32366a 2750 int nr_discard_cmd;
d84d1cbd 2751 unsigned int undiscard_blks;
a00861db 2752 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
648d50ba 2753 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
f83a2584 2754 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
39a53e0c
JK
2755 unsigned int bimodal, avg_vblocks;
2756 int util_free, util_valid, util_invalid;
2757 int rsvd_segs, overp_segs;
2758 int dirty_count, node_pages, meta_pages;
42190d2a 2759 int prefree_count, call_count, cp_count, bg_cp_count;
39a53e0c 2760 int tot_segs, node_segs, data_segs, free_segs, free_secs;
e1235983 2761 int bg_node_segs, bg_data_segs;
39a53e0c 2762 int tot_blks, data_blks, node_blks;
e1235983 2763 int bg_data_blks, bg_node_blks;
39a53e0c
JK
2764 int curseg[NR_CURSEG_TYPE];
2765 int cursec[NR_CURSEG_TYPE];
2766 int curzone[NR_CURSEG_TYPE];
2767
2768 unsigned int segment_count[2];
2769 unsigned int block_count[2];
b9a2c252 2770 unsigned int inplace_count;
9edcdabf 2771 unsigned long long base_mem, cache_mem, page_mem;
39a53e0c
JK
2772};
2773
963d4f7d
GZ
2774static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2775{
6c311ec6 2776 return (struct f2fs_stat_info *)sbi->stat_info;
963d4f7d
GZ
2777}
2778
942e0be6 2779#define stat_inc_cp_count(si) ((si)->cp_count++)
42190d2a 2780#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
dcdfff65
JK
2781#define stat_inc_call_count(si) ((si)->call_count++)
2782#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
33fbd510
CY
2783#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2784#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
5b7ee374
CY
2785#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2786#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2787#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2788#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
d5e8f6c9
CY
2789#define stat_inc_inline_xattr(inode) \
2790 do { \
2791 if (f2fs_has_inline_xattr(inode)) \
2792 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2793 } while (0)
2794#define stat_dec_inline_xattr(inode) \
2795 do { \
2796 if (f2fs_has_inline_xattr(inode)) \
2797 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2798 } while (0)
0dbdc2ae
JK
2799#define stat_inc_inline_inode(inode) \
2800 do { \
2801 if (f2fs_has_inline_data(inode)) \
03e14d52 2802 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
0dbdc2ae
JK
2803 } while (0)
2804#define stat_dec_inline_inode(inode) \
2805 do { \
2806 if (f2fs_has_inline_data(inode)) \
03e14d52 2807 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
0dbdc2ae 2808 } while (0)
3289c061
JK
2809#define stat_inc_inline_dir(inode) \
2810 do { \
2811 if (f2fs_has_inline_dentry(inode)) \
03e14d52 2812 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3289c061
JK
2813 } while (0)
2814#define stat_dec_inline_dir(inode) \
2815 do { \
2816 if (f2fs_has_inline_dentry(inode)) \
03e14d52 2817 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3289c061 2818 } while (0)
dcdfff65
JK
2819#define stat_inc_seg_type(sbi, curseg) \
2820 ((sbi)->segment_count[(curseg)->alloc_type]++)
2821#define stat_inc_block_count(sbi, curseg) \
2822 ((sbi)->block_count[(curseg)->alloc_type]++)
b9a2c252
CL
2823#define stat_inc_inplace_blocks(sbi) \
2824 (atomic_inc(&(sbi)->inplace_count))
26a28a0c 2825#define stat_inc_atomic_write(inode) \
cac5a3d8 2826 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
26a28a0c 2827#define stat_dec_atomic_write(inode) \
cac5a3d8 2828 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
26a28a0c
JK
2829#define stat_update_max_atomic_write(inode) \
2830 do { \
2831 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2832 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2833 if (cur > max) \
2834 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2835 } while (0)
648d50ba
CY
2836#define stat_inc_volatile_write(inode) \
2837 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2838#define stat_dec_volatile_write(inode) \
2839 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2840#define stat_update_max_volatile_write(inode) \
2841 do { \
2842 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2843 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2844 if (cur > max) \
2845 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2846 } while (0)
e1235983 2847#define stat_inc_seg_count(sbi, type, gc_type) \
39a53e0c 2848 do { \
963d4f7d 2849 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
68afcf2d
TK
2850 si->tot_segs++; \
2851 if ((type) == SUM_TYPE_DATA) { \
39a53e0c 2852 si->data_segs++; \
e1235983
CL
2853 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2854 } else { \
39a53e0c 2855 si->node_segs++; \
e1235983
CL
2856 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2857 } \
39a53e0c
JK
2858 } while (0)
2859
2860#define stat_inc_tot_blk_count(si, blks) \
68afcf2d 2861 ((si)->tot_blks += (blks))
39a53e0c 2862
e1235983 2863#define stat_inc_data_blk_count(sbi, blks, gc_type) \
39a53e0c 2864 do { \
963d4f7d 2865 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
39a53e0c
JK
2866 stat_inc_tot_blk_count(si, blks); \
2867 si->data_blks += (blks); \
68afcf2d 2868 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
39a53e0c
JK
2869 } while (0)
2870
e1235983 2871#define stat_inc_node_blk_count(sbi, blks, gc_type) \
39a53e0c 2872 do { \
963d4f7d 2873 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
39a53e0c
JK
2874 stat_inc_tot_blk_count(si, blks); \
2875 si->node_blks += (blks); \
68afcf2d 2876 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
39a53e0c
JK
2877 } while (0)
2878
cac5a3d8
DS
2879int f2fs_build_stats(struct f2fs_sb_info *sbi);
2880void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
787c7b8c 2881int __init f2fs_create_root_stats(void);
4589d25d 2882void f2fs_destroy_root_stats(void);
39a53e0c 2883#else
d66450e7
AB
2884#define stat_inc_cp_count(si) do { } while (0)
2885#define stat_inc_bg_cp_count(si) do { } while (0)
2886#define stat_inc_call_count(si) do { } while (0)
2887#define stat_inc_bggc_count(si) do { } while (0)
2888#define stat_inc_dirty_inode(sbi, type) do { } while (0)
2889#define stat_dec_dirty_inode(sbi, type) do { } while (0)
2890#define stat_inc_total_hit(sb) do { } while (0)
2891#define stat_inc_rbtree_node_hit(sb) do { } while (0)
2892#define stat_inc_largest_node_hit(sbi) do { } while (0)
2893#define stat_inc_cached_node_hit(sbi) do { } while (0)
2894#define stat_inc_inline_xattr(inode) do { } while (0)
2895#define stat_dec_inline_xattr(inode) do { } while (0)
2896#define stat_inc_inline_inode(inode) do { } while (0)
2897#define stat_dec_inline_inode(inode) do { } while (0)
2898#define stat_inc_inline_dir(inode) do { } while (0)
2899#define stat_dec_inline_dir(inode) do { } while (0)
2900#define stat_inc_atomic_write(inode) do { } while (0)
2901#define stat_dec_atomic_write(inode) do { } while (0)
2902#define stat_update_max_atomic_write(inode) do { } while (0)
2903#define stat_inc_volatile_write(inode) do { } while (0)
2904#define stat_dec_volatile_write(inode) do { } while (0)
2905#define stat_update_max_volatile_write(inode) do { } while (0)
2906#define stat_inc_seg_type(sbi, curseg) do { } while (0)
2907#define stat_inc_block_count(sbi, curseg) do { } while (0)
2908#define stat_inc_inplace_blocks(sbi) do { } while (0)
2909#define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
2910#define stat_inc_tot_blk_count(si, blks) do { } while (0)
2911#define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
2912#define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
39a53e0c
JK
2913
2914static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2915static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
787c7b8c 2916static inline int __init f2fs_create_root_stats(void) { return 0; }
4589d25d 2917static inline void f2fs_destroy_root_stats(void) { }
39a53e0c
JK
2918#endif
2919
2920extern const struct file_operations f2fs_dir_operations;
2921extern const struct file_operations f2fs_file_operations;
2922extern const struct inode_operations f2fs_file_inode_operations;
2923extern const struct address_space_operations f2fs_dblock_aops;
2924extern const struct address_space_operations f2fs_node_aops;
2925extern const struct address_space_operations f2fs_meta_aops;
2926extern const struct inode_operations f2fs_dir_inode_operations;
2927extern const struct inode_operations f2fs_symlink_inode_operations;
cbaf042a 2928extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
39a53e0c 2929extern const struct inode_operations f2fs_special_inode_operations;
29e7043f 2930extern struct kmem_cache *inode_entry_slab;
1001b347 2931
e18c65b2
HL
2932/*
2933 * inline.c
2934 */
cac5a3d8
DS
2935bool f2fs_may_inline_data(struct inode *inode);
2936bool f2fs_may_inline_dentry(struct inode *inode);
2937void read_inline_data(struct page *page, struct page *ipage);
bd4667cb 2938void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from);
cac5a3d8
DS
2939int f2fs_read_inline_data(struct inode *inode, struct page *page);
2940int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
2941int f2fs_convert_inline_inode(struct inode *inode);
2942int f2fs_write_inline_data(struct inode *inode, struct page *page);
2943bool recover_inline_data(struct inode *inode, struct page *npage);
2944struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
2945 struct fscrypt_name *fname, struct page **res_page);
2946int make_empty_inline_dir(struct inode *inode, struct inode *parent,
2947 struct page *ipage);
2948int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
2949 const struct qstr *orig_name,
2950 struct inode *inode, nid_t ino, umode_t mode);
2951void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
2952 struct inode *dir, struct inode *inode);
2953bool f2fs_empty_inline_dir(struct inode *dir);
2954int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
2955 struct fscrypt_str *fstr);
2956int f2fs_inline_data_fiemap(struct inode *inode,
2957 struct fiemap_extent_info *fieinfo,
2958 __u64 start, __u64 len);
cde4de12 2959
2658e50d
JK
2960/*
2961 * shrinker.c
2962 */
cac5a3d8
DS
2963unsigned long f2fs_shrink_count(struct shrinker *shrink,
2964 struct shrink_control *sc);
2965unsigned long f2fs_shrink_scan(struct shrinker *shrink,
2966 struct shrink_control *sc);
2967void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
2968void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
2658e50d 2969
a28ef1f5
CY
2970/*
2971 * extent_cache.c
2972 */
004b6862
CY
2973struct rb_entry *__lookup_rb_tree(struct rb_root *root,
2974 struct rb_entry *cached_re, unsigned int ofs);
2975struct rb_node **__lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
2976 struct rb_root *root, struct rb_node **parent,
2977 unsigned int ofs);
2978struct rb_entry *__lookup_rb_tree_ret(struct rb_root *root,
2979 struct rb_entry *cached_re, unsigned int ofs,
2980 struct rb_entry **prev_entry, struct rb_entry **next_entry,
2981 struct rb_node ***insert_p, struct rb_node **insert_parent,
2982 bool force);
df0f6b44
CY
2983bool __check_rb_tree_consistence(struct f2fs_sb_info *sbi,
2984 struct rb_root *root);
cac5a3d8
DS
2985unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
2986bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
2987void f2fs_drop_extent_tree(struct inode *inode);
2988unsigned int f2fs_destroy_extent_node(struct inode *inode);
2989void f2fs_destroy_extent_tree(struct inode *inode);
2990bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
2991 struct extent_info *ei);
2992void f2fs_update_extent_cache(struct dnode_of_data *dn);
19b2c30d 2993void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
cac5a3d8
DS
2994 pgoff_t fofs, block_t blkaddr, unsigned int len);
2995void init_extent_cache_info(struct f2fs_sb_info *sbi);
a28ef1f5
CY
2996int __init create_extent_cache(void);
2997void destroy_extent_cache(void);
2998
8ceffcb2
CY
2999/*
3000 * sysfs.c
3001 */
dc6b2055
JK
3002int __init f2fs_init_sysfs(void);
3003void f2fs_exit_sysfs(void);
3004int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3005void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
8ceffcb2 3006
cde4de12
JK
3007/*
3008 * crypto support
3009 */
0b81d077 3010static inline bool f2fs_encrypted_inode(struct inode *inode)
cde4de12 3011{
cde4de12 3012 return file_is_encrypt(inode);
cde4de12
JK
3013}
3014
1958593e
JK
3015static inline bool f2fs_encrypted_file(struct inode *inode)
3016{
3017 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
3018}
3019
cde4de12
JK
3020static inline void f2fs_set_encrypted_inode(struct inode *inode)
3021{
3022#ifdef CONFIG_F2FS_FS_ENCRYPTION
3023 file_set_encrypt(inode);
3024#endif
3025}
3026
3027static inline bool f2fs_bio_encrypted(struct bio *bio)
3028{
0b81d077 3029 return bio->bi_private != NULL;
cde4de12
JK
3030}
3031
3032static inline int f2fs_sb_has_crypto(struct super_block *sb)
3033{
cde4de12 3034 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
cde4de12 3035}
f424f664 3036
0bfd7a09 3037static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb)
52763a4b 3038{
0bfd7a09 3039 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED);
52763a4b
JK
3040}
3041
7a2af766
CY
3042static inline int f2fs_sb_has_extra_attr(struct super_block *sb)
3043{
3044 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_EXTRA_ATTR);
3045}
3046
5c57132e
CY
3047static inline int f2fs_sb_has_project_quota(struct super_block *sb)
3048{
3049 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_PRJQUOTA);
3050}
3051
704956ec
CY
3052static inline int f2fs_sb_has_inode_chksum(struct super_block *sb)
3053{
3054 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_INODE_CHKSUM);
3055}
3056
6afc662e
CY
3057static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block *sb)
3058{
3059 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR);
3060}
3061
178053e2
DLM
3062#ifdef CONFIG_BLK_DEV_ZONED
3063static inline int get_blkz_type(struct f2fs_sb_info *sbi,
3c62be17 3064 struct block_device *bdev, block_t blkaddr)
178053e2
DLM
3065{
3066 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3c62be17 3067 int i;
178053e2 3068
3c62be17
JK
3069 for (i = 0; i < sbi->s_ndevs; i++)
3070 if (FDEV(i).bdev == bdev)
3071 return FDEV(i).blkz_type[zno];
3072 return -EINVAL;
178053e2
DLM
3073}
3074#endif
3075
96ba2dec 3076static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
52763a4b 3077{
96ba2dec
DLM
3078 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
3079
3080 return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb);
52763a4b
JK
3081}
3082
3083static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3084{
3085 clear_opt(sbi, ADAPTIVE);
3086 clear_opt(sbi, LFS);
3087
3088 switch (mt) {
3089 case F2FS_MOUNT_ADAPTIVE:
3090 set_opt(sbi, ADAPTIVE);
3091 break;
3092 case F2FS_MOUNT_LFS:
3093 set_opt(sbi, LFS);
3094 break;
3095 }
3096}
3097
fcc85a4d
JK
3098static inline bool f2fs_may_encrypt(struct inode *inode)
3099{
3100#ifdef CONFIG_F2FS_FS_ENCRYPTION
886f56f9 3101 umode_t mode = inode->i_mode;
fcc85a4d
JK
3102
3103 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3104#else
3105 return 0;
3106#endif
3107}
3108
39a53e0c 3109#endif