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f2fs: remove unnecessary goto statement
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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>
0b81d077 25#include <linux/fscrypto.h>
43b6573b 26#include <crypto/hash.h>
39a53e0c 27
5d56b671 28#ifdef CONFIG_F2FS_CHECK_FS
9850cf4a 29#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
5d56b671 30#else
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31#define f2fs_bug_on(sbi, condition) \
32 do { \
33 if (unlikely(condition)) { \
34 WARN_ON(1); \
caf0047e 35 set_sbi_flag(sbi, SBI_NEED_FSCK); \
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36 } \
37 } while (0)
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38#endif
39
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40#ifdef CONFIG_F2FS_FAULT_INJECTION
41enum {
42 FAULT_KMALLOC,
c41f3cc3 43 FAULT_PAGE_ALLOC,
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44 FAULT_ALLOC_NID,
45 FAULT_ORPHAN,
46 FAULT_BLOCK,
47 FAULT_DIR_DEPTH,
53aa6bbf 48 FAULT_EVICT_INODE,
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49 FAULT_MAX,
50};
51
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52struct f2fs_fault_info {
53 atomic_t inject_ops;
54 unsigned int inject_rate;
55 unsigned int inject_type;
56};
57
58extern struct f2fs_fault_info f2fs_fault;
2c63fead 59extern char *fault_name[FAULT_MAX];
08796897 60#define IS_FAULT_SET(type) (f2fs_fault.inject_type & (1 << (type)))
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61
62static inline bool time_to_inject(int type)
63{
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64 if (!f2fs_fault.inject_rate)
65 return false;
66 if (type == FAULT_KMALLOC && !IS_FAULT_SET(type))
67 return false;
68 else if (type == FAULT_PAGE_ALLOC && !IS_FAULT_SET(type))
69 return false;
70 else if (type == FAULT_ALLOC_NID && !IS_FAULT_SET(type))
71 return false;
72 else if (type == FAULT_ORPHAN && !IS_FAULT_SET(type))
73 return false;
74 else if (type == FAULT_BLOCK && !IS_FAULT_SET(type))
75 return false;
76 else if (type == FAULT_DIR_DEPTH && !IS_FAULT_SET(type))
77 return false;
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78 else if (type == FAULT_EVICT_INODE && !IS_FAULT_SET(type))
79 return false;
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80
81 atomic_inc(&f2fs_fault.inject_ops);
82 if (atomic_read(&f2fs_fault.inject_ops) >= f2fs_fault.inject_rate) {
83 atomic_set(&f2fs_fault.inject_ops, 0);
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84 printk("%sF2FS-fs : inject %s in %pF\n",
85 KERN_INFO,
86 fault_name[type],
87 __builtin_return_address(0));
88 return true;
89 }
90 return false;
91}
92#endif
93
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94/*
95 * For mount options
96 */
97#define F2FS_MOUNT_BG_GC 0x00000001
98#define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
99#define F2FS_MOUNT_DISCARD 0x00000004
100#define F2FS_MOUNT_NOHEAP 0x00000008
101#define F2FS_MOUNT_XATTR_USER 0x00000010
102#define F2FS_MOUNT_POSIX_ACL 0x00000020
103#define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
444c580f 104#define F2FS_MOUNT_INLINE_XATTR 0x00000080
1001b347 105#define F2FS_MOUNT_INLINE_DATA 0x00000100
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106#define F2FS_MOUNT_INLINE_DENTRY 0x00000200
107#define F2FS_MOUNT_FLUSH_MERGE 0x00000400
108#define F2FS_MOUNT_NOBARRIER 0x00000800
d5053a34 109#define F2FS_MOUNT_FASTBOOT 0x00001000
89672159 110#define F2FS_MOUNT_EXTENT_CACHE 0x00002000
6aefd93b 111#define F2FS_MOUNT_FORCE_FG_GC 0x00004000
343f40f0 112#define F2FS_MOUNT_DATA_FLUSH 0x00008000
73faec4d 113#define F2FS_MOUNT_FAULT_INJECTION 0x00010000
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114#define F2FS_MOUNT_ADAPTIVE 0x00020000
115#define F2FS_MOUNT_LFS 0x00040000
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116
117#define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
118#define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
119#define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option)
120
121#define ver_after(a, b) (typecheck(unsigned long long, a) && \
122 typecheck(unsigned long long, b) && \
123 ((long long)((a) - (b)) > 0))
124
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125typedef u32 block_t; /*
126 * should not change u32, since it is the on-disk block
127 * address format, __le32.
128 */
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129typedef u32 nid_t;
130
131struct f2fs_mount_info {
132 unsigned int opt;
133};
134
cde4de12 135#define F2FS_FEATURE_ENCRYPT 0x0001
52763a4b 136#define F2FS_FEATURE_HMSMR 0x0002
cde4de12 137
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138#define F2FS_HAS_FEATURE(sb, mask) \
139 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
140#define F2FS_SET_FEATURE(sb, mask) \
141 F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask)
142#define F2FS_CLEAR_FEATURE(sb, mask) \
143 F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask)
144
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145/*
146 * For checkpoint manager
147 */
148enum {
149 NAT_BITMAP,
150 SIT_BITMAP
151};
152
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153enum {
154 CP_UMOUNT,
119ee914 155 CP_FASTBOOT,
75ab4cb8 156 CP_SYNC,
10027551 157 CP_RECOVERY,
4b2fecc8 158 CP_DISCARD,
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159};
160
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161#define DEF_BATCHED_TRIM_SECTIONS 32
162#define BATCHED_TRIM_SEGMENTS(sbi) \
163 (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
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164#define BATCHED_TRIM_BLOCKS(sbi) \
165 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
60b99b48 166#define DEF_CP_INTERVAL 60 /* 60 secs */
d0239e1b 167#define DEF_IDLE_INTERVAL 120 /* 2 mins */
bba681cb 168
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169struct cp_control {
170 int reason;
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171 __u64 trim_start;
172 __u64 trim_end;
173 __u64 trim_minlen;
174 __u64 trimmed;
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175};
176
662befda 177/*
81c1a0f1 178 * For CP/NAT/SIT/SSA readahead
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179 */
180enum {
181 META_CP,
182 META_NAT,
81c1a0f1 183 META_SIT,
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184 META_SSA,
185 META_POR,
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186};
187
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188/* for the list of ino */
189enum {
190 ORPHAN_INO, /* for orphan ino list */
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191 APPEND_INO, /* for append ino list */
192 UPDATE_INO, /* for update ino list */
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193 MAX_INO_ENTRY, /* max. list */
194};
195
196struct ino_entry {
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197 struct list_head list; /* list head */
198 nid_t ino; /* inode number */
199};
200
2710fd7e 201/* for the list of inodes to be GCed */
06292073 202struct inode_entry {
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203 struct list_head list; /* list head */
204 struct inode *inode; /* vfs inode pointer */
205};
206
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207/* for the list of blockaddresses to be discarded */
208struct discard_entry {
209 struct list_head list; /* list head */
210 block_t blkaddr; /* block address to be discarded */
211 int len; /* # of consecutive blocks of the discard */
212};
213
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214/* for the list of fsync inodes, used only during recovery */
215struct fsync_inode_entry {
216 struct list_head list; /* list head */
217 struct inode *inode; /* vfs inode pointer */
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218 block_t blkaddr; /* block address locating the last fsync */
219 block_t last_dentry; /* block address locating the last dentry */
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220};
221
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222#define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
223#define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
39a53e0c 224
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225#define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
226#define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
227#define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
228#define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
39a53e0c 229
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230#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
231#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
309cc2b6 232
dfc08a12 233static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
39a53e0c 234{
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235 int before = nats_in_cursum(journal);
236 journal->n_nats = cpu_to_le16(before + i);
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237 return before;
238}
239
dfc08a12 240static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
39a53e0c 241{
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242 int before = sits_in_cursum(journal);
243 journal->n_sits = cpu_to_le16(before + i);
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244 return before;
245}
246
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247static inline bool __has_cursum_space(struct f2fs_journal *journal,
248 int size, int type)
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249{
250 if (type == NAT_JOURNAL)
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251 return size <= MAX_NAT_JENTRIES(journal);
252 return size <= MAX_SIT_JENTRIES(journal);
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253}
254
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255/*
256 * ioctl commands
257 */
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258#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
259#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
d49f3e89 260#define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
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261
262#define F2FS_IOCTL_MAGIC 0xf5
263#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
264#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
02a1335f 265#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
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266#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
267#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
c1c1b583 268#define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6)
456b88e4 269#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
d323d005 270#define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
e9750824 271
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272#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
273#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
274#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
f424f664 275
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276/*
277 * should be same as XFS_IOC_GOINGDOWN.
278 * Flags for going down operation used by FS_IOC_GOINGDOWN
279 */
280#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
281#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
282#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
283#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
c912a829 284#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
1abff93d 285
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286#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
287/*
288 * ioctl commands in 32 bit emulation
289 */
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290#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
291#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
292#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
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293#endif
294
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295struct f2fs_defragment {
296 u64 start;
297 u64 len;
298};
299
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300/*
301 * For INODE and NODE manager
302 */
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303/* for directory operations */
304struct f2fs_dentry_ptr {
d8c6822a 305 struct inode *inode;
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306 const void *bitmap;
307 struct f2fs_dir_entry *dentry;
308 __u8 (*filename)[F2FS_SLOT_LEN];
309 int max;
310};
311
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312static inline void make_dentry_ptr(struct inode *inode,
313 struct f2fs_dentry_ptr *d, void *src, int type)
7b3cd7d6 314{
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315 d->inode = inode;
316
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317 if (type == 1) {
318 struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src;
319 d->max = NR_DENTRY_IN_BLOCK;
320 d->bitmap = &t->dentry_bitmap;
321 d->dentry = t->dentry;
322 d->filename = t->filename;
323 } else {
324 struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src;
325 d->max = NR_INLINE_DENTRY;
326 d->bitmap = &t->dentry_bitmap;
327 d->dentry = t->dentry;
328 d->filename = t->filename;
329 }
330}
331
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332/*
333 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
334 * as its node offset to distinguish from index node blocks.
335 * But some bits are used to mark the node block.
336 */
337#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
338 >> OFFSET_BIT_SHIFT)
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339enum {
340 ALLOC_NODE, /* allocate a new node page if needed */
341 LOOKUP_NODE, /* look up a node without readahead */
342 LOOKUP_NODE_RA, /*
343 * look up a node with readahead called
4f4124d0 344 * by get_data_block.
39a53e0c 345 */
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346};
347
a6db67f0 348#define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
39a53e0c 349
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350#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
351
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352/* vector size for gang look-up from extent cache that consists of radix tree */
353#define EXT_TREE_VEC_SIZE 64
354
39a53e0c 355/* for in-memory extent cache entry */
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356#define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
357
358/* number of extent info in extent cache we try to shrink */
359#define EXTENT_CACHE_SHRINK_NUMBER 128
c11abd1a 360
39a53e0c 361struct extent_info {
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362 unsigned int fofs; /* start offset in a file */
363 u32 blk; /* start block address of the extent */
364 unsigned int len; /* length of the extent */
365};
366
367struct extent_node {
368 struct rb_node rb_node; /* rb node located in rb-tree */
369 struct list_head list; /* node in global extent list of sbi */
370 struct extent_info ei; /* extent info */
201ef5e0 371 struct extent_tree *et; /* extent tree pointer */
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372};
373
374struct extent_tree {
375 nid_t ino; /* inode number */
376 struct rb_root root; /* root of extent info rb-tree */
62c8af65 377 struct extent_node *cached_en; /* recently accessed extent node */
3e72f721 378 struct extent_info largest; /* largested extent info */
137d09f0 379 struct list_head list; /* to be used by sbi->zombie_list */
13054c54 380 rwlock_t lock; /* protect extent info rb-tree */
68e35385 381 atomic_t node_cnt; /* # of extent node in rb-tree*/
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382};
383
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384/*
385 * This structure is taken from ext4_map_blocks.
386 *
387 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
388 */
389#define F2FS_MAP_NEW (1 << BH_New)
390#define F2FS_MAP_MAPPED (1 << BH_Mapped)
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391#define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
392#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
393 F2FS_MAP_UNWRITTEN)
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394
395struct f2fs_map_blocks {
396 block_t m_pblk;
397 block_t m_lblk;
398 unsigned int m_len;
399 unsigned int m_flags;
da85985c 400 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
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401};
402
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403/* for flag in get_data_block */
404#define F2FS_GET_BLOCK_READ 0
405#define F2FS_GET_BLOCK_DIO 1
406#define F2FS_GET_BLOCK_FIEMAP 2
407#define F2FS_GET_BLOCK_BMAP 3
b439b103 408#define F2FS_GET_BLOCK_PRE_DIO 4
24b84912 409#define F2FS_GET_BLOCK_PRE_AIO 5
e2b4e2bc 410
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411/*
412 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
413 */
414#define FADVISE_COLD_BIT 0x01
354a3399 415#define FADVISE_LOST_PINO_BIT 0x02
cde4de12 416#define FADVISE_ENCRYPT_BIT 0x04
e7d55452 417#define FADVISE_ENC_NAME_BIT 0x08
39a53e0c 418
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419#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
420#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
421#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
422#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
423#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
424#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
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425#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
426#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
427#define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
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428#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
429#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
cde4de12 430
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431#define DEF_DIR_LEVEL 0
432
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433struct f2fs_inode_info {
434 struct inode vfs_inode; /* serve a vfs inode */
435 unsigned long i_flags; /* keep an inode flags for ioctl */
436 unsigned char i_advise; /* use to give file attribute hints */
38431545 437 unsigned char i_dir_level; /* use for dentry level for large dir */
39a53e0c 438 unsigned int i_current_depth; /* use only in directory structure */
6666e6aa 439 unsigned int i_pino; /* parent inode number */
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440 umode_t i_acl_mode; /* keep file acl mode temporarily */
441
442 /* Use below internally in f2fs*/
443 unsigned long flags; /* use to pass per-file flags */
d928bfbf 444 struct rw_semaphore i_sem; /* protect fi info */
1beba1b3 445 struct percpu_counter dirty_pages; /* # of dirty pages */
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446 f2fs_hash_t chash; /* hash value of given file name */
447 unsigned int clevel; /* maximum level of given file name */
448 nid_t i_xattr_nid; /* node id that contains xattrs */
e518ff81 449 unsigned long long xattr_ver; /* cp version of xattr modification */
26de9b11 450 loff_t last_disk_size; /* lastly written file size */
88b88a66 451
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452 struct list_head dirty_list; /* dirty list for dirs and files */
453 struct list_head gdirty_list; /* linked in global dirty list */
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454 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
455 struct mutex inmem_lock; /* lock for inmemory pages */
3e72f721 456 struct extent_tree *extent_tree; /* cached extent_tree entry */
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457};
458
459static inline void get_extent_info(struct extent_info *ext,
bd933d4f 460 struct f2fs_extent *i_ext)
39a53e0c 461{
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462 ext->fofs = le32_to_cpu(i_ext->fofs);
463 ext->blk = le32_to_cpu(i_ext->blk);
464 ext->len = le32_to_cpu(i_ext->len);
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465}
466
467static inline void set_raw_extent(struct extent_info *ext,
468 struct f2fs_extent *i_ext)
469{
39a53e0c 470 i_ext->fofs = cpu_to_le32(ext->fofs);
4d0b0bd4 471 i_ext->blk = cpu_to_le32(ext->blk);
39a53e0c 472 i_ext->len = cpu_to_le32(ext->len);
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473}
474
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475static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
476 u32 blk, unsigned int len)
477{
478 ei->fofs = fofs;
479 ei->blk = blk;
480 ei->len = len;
481}
482
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483static inline bool __is_extent_same(struct extent_info *ei1,
484 struct extent_info *ei2)
485{
486 return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk &&
487 ei1->len == ei2->len);
488}
489
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490static inline bool __is_extent_mergeable(struct extent_info *back,
491 struct extent_info *front)
492{
493 return (back->fofs + back->len == front->fofs &&
494 back->blk + back->len == front->blk);
495}
496
497static inline bool __is_back_mergeable(struct extent_info *cur,
498 struct extent_info *back)
499{
500 return __is_extent_mergeable(back, cur);
501}
502
503static inline bool __is_front_mergeable(struct extent_info *cur,
504 struct extent_info *front)
505{
506 return __is_extent_mergeable(cur, front);
507}
508
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509static inline void __try_update_largest_extent(struct inode *inode,
510 struct extent_tree *et, struct extent_node *en)
4abd3f5a 511{
205b9822 512 if (en->ei.len > et->largest.len) {
4abd3f5a 513 et->largest = en->ei;
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514 mark_inode_dirty_sync(inode);
515 }
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CY
516}
517
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518struct f2fs_nm_info {
519 block_t nat_blkaddr; /* base disk address of NAT */
520 nid_t max_nid; /* maximum possible node ids */
7ee0eeab 521 nid_t available_nids; /* maximum available node ids */
39a53e0c 522 nid_t next_scan_nid; /* the next nid to be scanned */
cdfc41c1 523 unsigned int ram_thresh; /* control the memory footprint */
ea1a29a0 524 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
2304cb0c 525 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
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526
527 /* NAT cache management */
528 struct radix_tree_root nat_root;/* root of the nat entry cache */
309cc2b6 529 struct radix_tree_root nat_set_root;/* root of the nat set cache */
8b26ef98 530 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
39a53e0c 531 struct list_head nat_entries; /* cached nat entry list (clean) */
309cc2b6 532 unsigned int nat_cnt; /* the # of cached nat entries */
aec71382 533 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
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534
535 /* free node ids management */
8a7ed66a 536 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
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537 struct list_head free_nid_list; /* a list for free nids */
538 spinlock_t free_nid_list_lock; /* protect free nid list */
539 unsigned int fcnt; /* the number of free node id */
540 struct mutex build_lock; /* lock for build free nids */
541
542 /* for checkpoint */
543 char *nat_bitmap; /* NAT bitmap pointer */
544 int bitmap_size; /* bitmap size */
545};
546
547/*
548 * this structure is used as one of function parameters.
549 * all the information are dedicated to a given direct node block determined
550 * by the data offset in a file.
551 */
552struct dnode_of_data {
553 struct inode *inode; /* vfs inode pointer */
554 struct page *inode_page; /* its inode page, NULL is possible */
555 struct page *node_page; /* cached direct node page */
556 nid_t nid; /* node id of the direct node block */
557 unsigned int ofs_in_node; /* data offset in the node page */
558 bool inode_page_locked; /* inode page is locked or not */
93bae099 559 bool node_changed; /* is node block changed */
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560 char cur_level; /* level of hole node page */
561 char max_level; /* level of current page located */
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562 block_t data_blkaddr; /* block address of the node block */
563};
564
565static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
566 struct page *ipage, struct page *npage, nid_t nid)
567{
d66d1f76 568 memset(dn, 0, sizeof(*dn));
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569 dn->inode = inode;
570 dn->inode_page = ipage;
571 dn->node_page = npage;
572 dn->nid = nid;
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573}
574
575/*
576 * For SIT manager
577 *
578 * By default, there are 6 active log areas across the whole main area.
579 * When considering hot and cold data separation to reduce cleaning overhead,
580 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
581 * respectively.
582 * In the current design, you should not change the numbers intentionally.
583 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
584 * logs individually according to the underlying devices. (default: 6)
585 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
586 * data and 8 for node logs.
587 */
588#define NR_CURSEG_DATA_TYPE (3)
589#define NR_CURSEG_NODE_TYPE (3)
590#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
591
592enum {
593 CURSEG_HOT_DATA = 0, /* directory entry blocks */
594 CURSEG_WARM_DATA, /* data blocks */
595 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
596 CURSEG_HOT_NODE, /* direct node blocks of directory files */
597 CURSEG_WARM_NODE, /* direct node blocks of normal files */
598 CURSEG_COLD_NODE, /* indirect node blocks */
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599 NO_CHECK_TYPE,
600 CURSEG_DIRECT_IO, /* to use for the direct IO path */
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601};
602
6b4afdd7 603struct flush_cmd {
6b4afdd7 604 struct completion wait;
721bd4d5 605 struct llist_node llnode;
6b4afdd7
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606 int ret;
607};
608
a688b9d9
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609struct flush_cmd_control {
610 struct task_struct *f2fs_issue_flush; /* flush thread */
611 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
0a87f664 612 atomic_t submit_flush; /* # of issued flushes */
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613 struct llist_head issue_list; /* list for command issue */
614 struct llist_node *dispatch_list; /* list for command dispatch */
a688b9d9
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615};
616
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617struct f2fs_sm_info {
618 struct sit_info *sit_info; /* whole segment information */
619 struct free_segmap_info *free_info; /* free segment information */
620 struct dirty_seglist_info *dirty_info; /* dirty segment information */
621 struct curseg_info *curseg_array; /* active segment information */
622
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623 block_t seg0_blkaddr; /* block address of 0'th segment */
624 block_t main_blkaddr; /* start block address of main area */
625 block_t ssa_blkaddr; /* start block address of SSA area */
626
627 unsigned int segment_count; /* total # of segments */
628 unsigned int main_segments; /* # of segments in main area */
629 unsigned int reserved_segments; /* # of reserved segments */
630 unsigned int ovp_segments; /* # of overprovision segments */
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631
632 /* a threshold to reclaim prefree segments */
633 unsigned int rec_prefree_segments;
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634
635 /* for small discard management */
636 struct list_head discard_list; /* 4KB discard list */
637 int nr_discards; /* # of discards in the list */
638 int max_discards; /* max. discards to be issued */
216fbd64 639
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640 /* for batched trimming */
641 unsigned int trim_sections; /* # of sections to trim */
642
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643 struct list_head sit_entry_set; /* sit entry set list */
644
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645 unsigned int ipu_policy; /* in-place-update policy */
646 unsigned int min_ipu_util; /* in-place-update threshold */
c1ce1b02 647 unsigned int min_fsync_blocks; /* threshold for fsync */
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648
649 /* for flush command control */
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650 struct flush_cmd_control *cmd_control_info;
651
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652};
653
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654/*
655 * For superblock
656 */
657/*
658 * COUNT_TYPE for monitoring
659 *
660 * f2fs monitors the number of several block types such as on-writeback,
661 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
662 */
663enum count_type {
39a53e0c 664 F2FS_DIRTY_DENTS,
c227f912 665 F2FS_DIRTY_DATA,
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666 F2FS_DIRTY_NODES,
667 F2FS_DIRTY_META,
8dcf2ff7 668 F2FS_INMEM_PAGES,
0f18b462 669 F2FS_DIRTY_IMETA,
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670 NR_COUNT_TYPE,
671};
672
39a53e0c 673/*
e1c42045 674 * The below are the page types of bios used in submit_bio().
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675 * The available types are:
676 * DATA User data pages. It operates as async mode.
677 * NODE Node pages. It operates as async mode.
678 * META FS metadata pages such as SIT, NAT, CP.
679 * NR_PAGE_TYPE The number of page types.
680 * META_FLUSH Make sure the previous pages are written
681 * with waiting the bio's completion
682 * ... Only can be used with META.
683 */
7d5e5109 684#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
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685enum page_type {
686 DATA,
687 NODE,
688 META,
689 NR_PAGE_TYPE,
690 META_FLUSH,
8ce67cb0
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691 INMEM, /* the below types are used by tracepoints only. */
692 INMEM_DROP,
28bc106b 693 INMEM_REVOKE,
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694 IPU,
695 OPU,
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696};
697
458e6197 698struct f2fs_io_info {
05ca3632 699 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
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700 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
701 int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */
7a9d7548 702 block_t new_blkaddr; /* new block address to be written */
28bc106b 703 block_t old_blkaddr; /* old block address before Cow */
05ca3632 704 struct page *page; /* page to be written */
4375a336 705 struct page *encrypted_page; /* encrypted page */
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JK
706};
707
93dfe2ac 708#define is_read_io(rw) (((rw) & 1) == READ)
1ff7bd3b 709struct f2fs_bio_info {
458e6197 710 struct f2fs_sb_info *sbi; /* f2fs superblock */
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711 struct bio *bio; /* bios to merge */
712 sector_t last_block_in_bio; /* last block number */
458e6197 713 struct f2fs_io_info fio; /* store buffered io info. */
df0f8dc0 714 struct rw_semaphore io_rwsem; /* blocking op for bio */
1ff7bd3b
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715};
716
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717enum inode_type {
718 DIR_INODE, /* for dirty dir inode */
719 FILE_INODE, /* for dirty regular/symlink inode */
0f18b462 720 DIRTY_META, /* for all dirtied inode metadata */
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721 NR_INODE_TYPE,
722};
723
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724/* for inner inode cache management */
725struct inode_management {
726 struct radix_tree_root ino_root; /* ino entry array */
727 spinlock_t ino_lock; /* for ino entry lock */
728 struct list_head ino_list; /* inode list head */
729 unsigned long ino_num; /* number of entries */
730};
731
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732/* For s_flag in struct f2fs_sb_info */
733enum {
734 SBI_IS_DIRTY, /* dirty flag for checkpoint */
735 SBI_IS_CLOSE, /* specify unmounting */
736 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
737 SBI_POR_DOING, /* recovery is doing or not */
df728b0f 738 SBI_NEED_SB_WRITE, /* need to recover superblock */
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739};
740
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741enum {
742 CP_TIME,
d0239e1b 743 REQ_TIME,
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744 MAX_TIME,
745};
746
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747#ifdef CONFIG_F2FS_FS_ENCRYPTION
748#define F2FS_KEY_DESC_PREFIX "f2fs:"
749#define F2FS_KEY_DESC_PREFIX_SIZE 5
750#endif
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751struct f2fs_sb_info {
752 struct super_block *sb; /* pointer to VFS super block */
5e176d54 753 struct proc_dir_entry *s_proc; /* proc entry */
39a53e0c 754 struct f2fs_super_block *raw_super; /* raw super block pointer */
e8240f65 755 int valid_super_block; /* valid super block no */
caf0047e 756 int s_flag; /* flags for sbi */
39a53e0c 757
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758#ifdef CONFIG_F2FS_FS_ENCRYPTION
759 u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE];
760 u8 key_prefix_size;
761#endif
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762 /* for node-related operations */
763 struct f2fs_nm_info *nm_info; /* node manager */
764 struct inode *node_inode; /* cache node blocks */
765
766 /* for segment-related operations */
767 struct f2fs_sm_info *sm_info; /* segment manager */
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768
769 /* for bio operations */
924b720b 770 struct f2fs_bio_info read_io; /* for read bios */
1ff7bd3b 771 struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
7dfeaa32 772 struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */
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773
774 /* for checkpoint */
775 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
776 struct inode *meta_inode; /* cache meta blocks */
39936837 777 struct mutex cp_mutex; /* checkpoint procedure lock */
e479556b 778 struct rw_semaphore cp_rwsem; /* blocking FS operations */
b3582c68 779 struct rw_semaphore node_write; /* locking node writes */
fb51b5ef 780 wait_queue_head_t cp_wait;
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781 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
782 long interval_time[MAX_TIME]; /* to store thresholds */
39a53e0c 783
67298804 784 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
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785
786 /* for orphan inode, use 0'th array */
0d47c1ad 787 unsigned int max_orphans; /* max orphan inodes */
39a53e0c 788
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789 /* for inode management */
790 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
791 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
39a53e0c 792
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793 /* for extent tree cache */
794 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
795 struct rw_semaphore extent_tree_lock; /* locking extent radix tree */
796 struct list_head extent_list; /* lru list for shrinker */
797 spinlock_t extent_lock; /* locking extent lru list */
7441ccef 798 atomic_t total_ext_tree; /* extent tree count */
137d09f0 799 struct list_head zombie_list; /* extent zombie tree list */
74fd8d99 800 atomic_t total_zombie_tree; /* extent zombie tree count */
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801 atomic_t total_ext_node; /* extent info count */
802
e1c42045 803 /* basic filesystem units */
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804 unsigned int log_sectors_per_block; /* log2 sectors per block */
805 unsigned int log_blocksize; /* log2 block size */
806 unsigned int blocksize; /* block size */
807 unsigned int root_ino_num; /* root inode number*/
808 unsigned int node_ino_num; /* node inode number*/
809 unsigned int meta_ino_num; /* meta inode number*/
810 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
811 unsigned int blocks_per_seg; /* blocks per segment */
812 unsigned int segs_per_sec; /* segments per section */
813 unsigned int secs_per_zone; /* sections per zone */
814 unsigned int total_sections; /* total section count */
815 unsigned int total_node_count; /* total node block count */
816 unsigned int total_valid_node_count; /* valid node block count */
e0afc4d6 817 loff_t max_file_blocks; /* max block index of file */
39a53e0c 818 int active_logs; /* # of active logs */
ab9fa662 819 int dir_level; /* directory level */
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JK
820
821 block_t user_block_count; /* # of user blocks */
822 block_t total_valid_block_count; /* # of valid blocks */
a66cdd98 823 block_t discard_blks; /* discard command candidats */
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824 block_t last_valid_block_count; /* for recovery */
825 u32 s_next_generation; /* for NFS support */
f5730184 826 atomic_t nr_wb_bios; /* # of writeback bios */
523be8a6
JK
827
828 /* # of pages, see count_type */
829 struct percpu_counter nr_pages[NR_COUNT_TYPE];
41382ec4
JK
830 /* # of allocated blocks */
831 struct percpu_counter alloc_valid_block_count;
39a53e0c 832
513c5f37
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833 /* valid inode count */
834 struct percpu_counter total_valid_inode_count;
835
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836 struct f2fs_mount_info mount_opt; /* mount options */
837
838 /* for cleaning operations */
839 struct mutex gc_mutex; /* mutex for GC */
840 struct f2fs_gc_kthread *gc_thread; /* GC thread */
5ec4e49f 841 unsigned int cur_victim_sec; /* current victim section num */
39a53e0c 842
b1c57c1c
JK
843 /* maximum # of trials to find a victim segment for SSR and GC */
844 unsigned int max_victim_search;
845
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846 /*
847 * for stat information.
848 * one is for the LFS mode, and the other is for the SSR mode.
849 */
35b09d82 850#ifdef CONFIG_F2FS_STAT_FS
39a53e0c
JK
851 struct f2fs_stat_info *stat_info; /* FS status information */
852 unsigned int segment_count[2]; /* # of allocated segments */
853 unsigned int block_count[2]; /* # of allocated blocks */
b9a2c252 854 atomic_t inplace_count; /* # of inplace update */
5b7ee374
CY
855 atomic64_t total_hit_ext; /* # of lookup extent cache */
856 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
857 atomic64_t read_hit_largest; /* # of hit largest extent node */
858 atomic64_t read_hit_cached; /* # of hit cached extent node */
d5e8f6c9 859 atomic_t inline_xattr; /* # of inline_xattr inodes */
03e14d52
CY
860 atomic_t inline_inode; /* # of inline_data inodes */
861 atomic_t inline_dir; /* # of inline_dentry inodes */
39a53e0c 862 int bg_gc; /* background gc calls */
33fbd510 863 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
35b09d82
NJ
864#endif
865 unsigned int last_victim[2]; /* last victim segment # */
39a53e0c 866 spinlock_t stat_lock; /* lock for stat operations */
b59d0bae
NJ
867
868 /* For sysfs suppport */
869 struct kobject s_kobj;
870 struct completion s_kobj_unregister;
2658e50d
JK
871
872 /* For shrinker support */
873 struct list_head s_list;
874 struct mutex umount_mutex;
875 unsigned int shrinker_run_no;
8f1dbbbb
SL
876
877 /* For write statistics */
878 u64 sectors_written_start;
879 u64 kbytes_written;
43b6573b
KM
880
881 /* Reference to checksum algorithm driver via cryptoapi */
882 struct crypto_shash *s_chksum_driver;
39a53e0c
JK
883};
884
8f1dbbbb
SL
885/* For write statistics. Suppose sector size is 512 bytes,
886 * and the return value is in kbytes. s is of struct f2fs_sb_info.
887 */
888#define BD_PART_WRITTEN(s) \
889(((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
890 s->sectors_written_start) >> 1)
891
6beceb54
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892static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
893{
894 sbi->last_time[type] = jiffies;
895}
896
897static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
898{
899 struct timespec ts = {sbi->interval_time[type], 0};
900 unsigned long interval = timespec_to_jiffies(&ts);
901
902 return time_after(jiffies, sbi->last_time[type] + interval);
903}
904
d0239e1b
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905static inline bool is_idle(struct f2fs_sb_info *sbi)
906{
907 struct block_device *bdev = sbi->sb->s_bdev;
908 struct request_queue *q = bdev_get_queue(bdev);
909 struct request_list *rl = &q->root_rl;
910
911 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
912 return 0;
913
914 return f2fs_time_over(sbi, REQ_TIME);
915}
916
39a53e0c
JK
917/*
918 * Inline functions
919 */
43b6573b
KM
920static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
921 unsigned int length)
922{
923 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
924 u32 *ctx = (u32 *)shash_desc_ctx(shash);
925 int err;
926
927 shash->tfm = sbi->s_chksum_driver;
928 shash->flags = 0;
929 *ctx = F2FS_SUPER_MAGIC;
930
931 err = crypto_shash_update(shash, address, length);
932 BUG_ON(err);
933
934 return *ctx;
935}
936
937static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
938 void *buf, size_t buf_size)
939{
940 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
941}
942
39a53e0c
JK
943static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
944{
945 return container_of(inode, struct f2fs_inode_info, vfs_inode);
946}
947
948static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
949{
950 return sb->s_fs_info;
951}
952
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953static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
954{
955 return F2FS_SB(inode->i_sb);
956}
957
958static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
959{
960 return F2FS_I_SB(mapping->host);
961}
962
963static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
964{
965 return F2FS_M_SB(page->mapping);
966}
967
39a53e0c
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968static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
969{
970 return (struct f2fs_super_block *)(sbi->raw_super);
971}
972
973static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
974{
975 return (struct f2fs_checkpoint *)(sbi->ckpt);
976}
977
45590710
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978static inline struct f2fs_node *F2FS_NODE(struct page *page)
979{
980 return (struct f2fs_node *)page_address(page);
981}
982
58bfaf44
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983static inline struct f2fs_inode *F2FS_INODE(struct page *page)
984{
985 return &((struct f2fs_node *)page_address(page))->i;
986}
987
39a53e0c
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988static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
989{
990 return (struct f2fs_nm_info *)(sbi->nm_info);
991}
992
993static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
994{
995 return (struct f2fs_sm_info *)(sbi->sm_info);
996}
997
998static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
999{
1000 return (struct sit_info *)(SM_I(sbi)->sit_info);
1001}
1002
1003static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1004{
1005 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1006}
1007
1008static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1009{
1010 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1011}
1012
9df27d98
GZ
1013static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1014{
1015 return sbi->meta_inode->i_mapping;
1016}
1017
4ef51a8f
JK
1018static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1019{
1020 return sbi->node_inode->i_mapping;
1021}
1022
caf0047e
CY
1023static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1024{
1025 return sbi->s_flag & (0x01 << type);
1026}
1027
1028static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
39a53e0c 1029{
caf0047e 1030 sbi->s_flag |= (0x01 << type);
39a53e0c
JK
1031}
1032
caf0047e 1033static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
39a53e0c 1034{
caf0047e 1035 sbi->s_flag &= ~(0x01 << type);
39a53e0c
JK
1036}
1037
d71b5564
JK
1038static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1039{
1040 return le64_to_cpu(cp->checkpoint_ver);
1041}
1042
25ca923b
JK
1043static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1044{
1045 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1046 return ckpt_flags & f;
1047}
1048
1049static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1050{
1051 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1052 ckpt_flags |= f;
1053 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1054}
1055
1056static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1057{
1058 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1059 ckpt_flags &= (~f);
1060 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1061}
1062
e479556b 1063static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
39936837 1064{
e479556b 1065 down_read(&sbi->cp_rwsem);
39936837
JK
1066}
1067
e479556b 1068static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
39a53e0c 1069{
e479556b 1070 up_read(&sbi->cp_rwsem);
39a53e0c
JK
1071}
1072
e479556b 1073static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
39a53e0c 1074{
59692b7c 1075 down_write(&sbi->cp_rwsem);
39936837
JK
1076}
1077
e479556b 1078static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
39936837 1079{
e479556b 1080 up_write(&sbi->cp_rwsem);
39a53e0c
JK
1081}
1082
119ee914
JK
1083static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1084{
1085 int reason = CP_SYNC;
1086
1087 if (test_opt(sbi, FASTBOOT))
1088 reason = CP_FASTBOOT;
1089 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1090 reason = CP_UMOUNT;
1091 return reason;
1092}
1093
1094static inline bool __remain_node_summaries(int reason)
1095{
1096 return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
1097}
1098
1099static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1100{
1101 return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) ||
1102 is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG));
1103}
1104
39a53e0c
JK
1105/*
1106 * Check whether the given nid is within node id range.
1107 */
064e0823 1108static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
39a53e0c 1109{
d6b7d4b3
CY
1110 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1111 return -EINVAL;
cfb271d4 1112 if (unlikely(nid >= NM_I(sbi)->max_nid))
064e0823
NJ
1113 return -EINVAL;
1114 return 0;
39a53e0c
JK
1115}
1116
1117#define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1118
1119/*
1120 * Check whether the inode has blocks or not
1121 */
1122static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1123{
1124 if (F2FS_I(inode)->i_xattr_nid)
6c311ec6 1125 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1;
39a53e0c 1126 else
6c311ec6 1127 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
39a53e0c
JK
1128}
1129
4bc8e9bc
CY
1130static inline bool f2fs_has_xattr_block(unsigned int ofs)
1131{
1132 return ofs == XATTR_NODE_OFFSET;
1133}
1134
8edd03c8 1135static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
39a53e0c 1136static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
46008c6d 1137 struct inode *inode, blkcnt_t *count)
39a53e0c
JK
1138{
1139 block_t valid_block_count;
1140
1141 spin_lock(&sbi->stat_lock);
cb78942b
JK
1142#ifdef CONFIG_F2FS_FAULT_INJECTION
1143 if (time_to_inject(FAULT_BLOCK)) {
1144 spin_unlock(&sbi->stat_lock);
1145 return false;
1146 }
1147#endif
39a53e0c 1148 valid_block_count =
46008c6d 1149 sbi->total_valid_block_count + (block_t)(*count);
cfb271d4 1150 if (unlikely(valid_block_count > sbi->user_block_count)) {
46008c6d
CY
1151 *count = sbi->user_block_count - sbi->total_valid_block_count;
1152 if (!*count) {
1153 spin_unlock(&sbi->stat_lock);
1154 return false;
1155 }
39a53e0c 1156 }
46008c6d 1157 /* *count can be recalculated */
8edd03c8 1158 f2fs_i_blocks_write(inode, *count, true);
46008c6d
CY
1159 sbi->total_valid_block_count =
1160 sbi->total_valid_block_count + (block_t)(*count);
39a53e0c 1161 spin_unlock(&sbi->stat_lock);
41382ec4
JK
1162
1163 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
39a53e0c
JK
1164 return true;
1165}
1166
da19b0dc 1167static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
39a53e0c
JK
1168 struct inode *inode,
1169 blkcnt_t count)
1170{
1171 spin_lock(&sbi->stat_lock);
9850cf4a
JK
1172 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1173 f2fs_bug_on(sbi, inode->i_blocks < count);
8edd03c8 1174 f2fs_i_blocks_write(inode, count, false);
39a53e0c
JK
1175 sbi->total_valid_block_count -= (block_t)count;
1176 spin_unlock(&sbi->stat_lock);
39a53e0c
JK
1177}
1178
1179static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1180{
523be8a6 1181 percpu_counter_inc(&sbi->nr_pages[count_type]);
caf0047e 1182 set_sbi_flag(sbi, SBI_IS_DIRTY);
39a53e0c
JK
1183}
1184
a7ffdbe2 1185static inline void inode_inc_dirty_pages(struct inode *inode)
39a53e0c 1186{
1beba1b3 1187 percpu_counter_inc(&F2FS_I(inode)->dirty_pages);
c227f912
CY
1188 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1189 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
39a53e0c
JK
1190}
1191
1192static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1193{
523be8a6 1194 percpu_counter_dec(&sbi->nr_pages[count_type]);
39a53e0c
JK
1195}
1196
a7ffdbe2 1197static inline void inode_dec_dirty_pages(struct inode *inode)
39a53e0c 1198{
5ac9f36f
CY
1199 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1200 !S_ISLNK(inode->i_mode))
1fe54f9d
JK
1201 return;
1202
1beba1b3 1203 percpu_counter_dec(&F2FS_I(inode)->dirty_pages);
c227f912
CY
1204 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1205 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
39a53e0c
JK
1206}
1207
523be8a6 1208static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
39a53e0c 1209{
523be8a6 1210 return percpu_counter_sum_positive(&sbi->nr_pages[count_type]);
39a53e0c
JK
1211}
1212
1beba1b3 1213static inline s64 get_dirty_pages(struct inode *inode)
f8b2c1f9 1214{
1beba1b3 1215 return percpu_counter_sum_positive(&F2FS_I(inode)->dirty_pages);
f8b2c1f9
JK
1216}
1217
5ac206cf
NJ
1218static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1219{
3519e3f9 1220 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
523be8a6
JK
1221 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1222 sbi->log_blocks_per_seg;
1223
1224 return segs / sbi->segs_per_sec;
5ac206cf
NJ
1225}
1226
39a53e0c
JK
1227static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1228{
8b8343fa 1229 return sbi->total_valid_block_count;
39a53e0c
JK
1230}
1231
1232static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1233{
1234 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1235
1236 /* return NAT or SIT bitmap */
1237 if (flag == NAT_BITMAP)
1238 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1239 else if (flag == SIT_BITMAP)
1240 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1241
1242 return 0;
1243}
1244
55141486
WL
1245static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1246{
1247 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1248}
1249
39a53e0c
JK
1250static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1251{
1252 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1dbe4152
CL
1253 int offset;
1254
55141486 1255 if (__cp_payload(sbi) > 0) {
1dbe4152
CL
1256 if (flag == NAT_BITMAP)
1257 return &ckpt->sit_nat_version_bitmap;
1258 else
65b85ccc 1259 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1dbe4152
CL
1260 } else {
1261 offset = (flag == NAT_BITMAP) ?
25ca923b 1262 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1dbe4152
CL
1263 return &ckpt->sit_nat_version_bitmap + offset;
1264 }
39a53e0c
JK
1265}
1266
1267static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1268{
1269 block_t start_addr;
1270 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
d71b5564 1271 unsigned long long ckpt_version = cur_cp_version(ckpt);
39a53e0c 1272
25ca923b 1273 start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
39a53e0c
JK
1274
1275 /*
1276 * odd numbered checkpoint should at cp segment 0
e1c42045 1277 * and even segment must be at cp segment 1
39a53e0c
JK
1278 */
1279 if (!(ckpt_version & 1))
1280 start_addr += sbi->blocks_per_seg;
1281
1282 return start_addr;
1283}
1284
1285static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1286{
1287 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1288}
1289
1290static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi,
ef86d709 1291 struct inode *inode)
39a53e0c
JK
1292{
1293 block_t valid_block_count;
1294 unsigned int valid_node_count;
1295
1296 spin_lock(&sbi->stat_lock);
1297
ef86d709 1298 valid_block_count = sbi->total_valid_block_count + 1;
cfb271d4 1299 if (unlikely(valid_block_count > sbi->user_block_count)) {
39a53e0c
JK
1300 spin_unlock(&sbi->stat_lock);
1301 return false;
1302 }
1303
ef86d709 1304 valid_node_count = sbi->total_valid_node_count + 1;
cfb271d4 1305 if (unlikely(valid_node_count > sbi->total_node_count)) {
39a53e0c
JK
1306 spin_unlock(&sbi->stat_lock);
1307 return false;
1308 }
1309
1310 if (inode)
8edd03c8 1311 f2fs_i_blocks_write(inode, 1, true);
ef86d709 1312
ef86d709
GZ
1313 sbi->total_valid_node_count++;
1314 sbi->total_valid_block_count++;
39a53e0c
JK
1315 spin_unlock(&sbi->stat_lock);
1316
41382ec4 1317 percpu_counter_inc(&sbi->alloc_valid_block_count);
39a53e0c
JK
1318 return true;
1319}
1320
1321static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
ef86d709 1322 struct inode *inode)
39a53e0c
JK
1323{
1324 spin_lock(&sbi->stat_lock);
1325
9850cf4a
JK
1326 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1327 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1328 f2fs_bug_on(sbi, !inode->i_blocks);
39a53e0c 1329
8edd03c8 1330 f2fs_i_blocks_write(inode, 1, false);
ef86d709
GZ
1331 sbi->total_valid_node_count--;
1332 sbi->total_valid_block_count--;
39a53e0c
JK
1333
1334 spin_unlock(&sbi->stat_lock);
1335}
1336
1337static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1338{
8b8343fa 1339 return sbi->total_valid_node_count;
39a53e0c
JK
1340}
1341
1342static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1343{
513c5f37 1344 percpu_counter_inc(&sbi->total_valid_inode_count);
39a53e0c
JK
1345}
1346
0e80220a 1347static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
39a53e0c 1348{
513c5f37 1349 percpu_counter_dec(&sbi->total_valid_inode_count);
39a53e0c
JK
1350}
1351
513c5f37 1352static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
39a53e0c 1353{
513c5f37 1354 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
39a53e0c
JK
1355}
1356
a56c7c6f
JK
1357static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1358 pgoff_t index, bool for_write)
1359{
c41f3cc3
JK
1360#ifdef CONFIG_F2FS_FAULT_INJECTION
1361 struct page *page = find_lock_page(mapping, index);
1362 if (page)
1363 return page;
1364
1365 if (time_to_inject(FAULT_PAGE_ALLOC))
1366 return NULL;
1367#endif
a56c7c6f
JK
1368 if (!for_write)
1369 return grab_cache_page(mapping, index);
1370 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1371}
1372
6e2c64ad
JK
1373static inline void f2fs_copy_page(struct page *src, struct page *dst)
1374{
1375 char *src_kaddr = kmap(src);
1376 char *dst_kaddr = kmap(dst);
1377
1378 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1379 kunmap(dst);
1380 kunmap(src);
1381}
1382
39a53e0c
JK
1383static inline void f2fs_put_page(struct page *page, int unlock)
1384{
031fa8cc 1385 if (!page)
39a53e0c
JK
1386 return;
1387
1388 if (unlock) {
9850cf4a 1389 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
39a53e0c
JK
1390 unlock_page(page);
1391 }
09cbfeaf 1392 put_page(page);
39a53e0c
JK
1393}
1394
1395static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1396{
1397 if (dn->node_page)
1398 f2fs_put_page(dn->node_page, 1);
1399 if (dn->inode_page && dn->node_page != dn->inode_page)
1400 f2fs_put_page(dn->inode_page, 0);
1401 dn->node_page = NULL;
1402 dn->inode_page = NULL;
1403}
1404
1405static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
e8512d2e 1406 size_t size)
39a53e0c 1407{
e8512d2e 1408 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
39a53e0c
JK
1409}
1410
7bd59381
GZ
1411static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1412 gfp_t flags)
1413{
1414 void *entry;
7bd59381 1415
80c54505
JK
1416 entry = kmem_cache_alloc(cachep, flags);
1417 if (!entry)
1418 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
7bd59381
GZ
1419 return entry;
1420}
1421
740432f8
JK
1422static inline struct bio *f2fs_bio_alloc(int npages)
1423{
1424 struct bio *bio;
1425
1426 /* No failure on bio allocation */
740432f8 1427 bio = bio_alloc(GFP_NOIO, npages);
80c54505
JK
1428 if (!bio)
1429 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
740432f8
JK
1430 return bio;
1431}
1432
9be32d72
JK
1433static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1434 unsigned long index, void *item)
1435{
1436 while (radix_tree_insert(root, index, item))
1437 cond_resched();
1438}
1439
39a53e0c
JK
1440#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1441
1442static inline bool IS_INODE(struct page *page)
1443{
45590710 1444 struct f2fs_node *p = F2FS_NODE(page);
39a53e0c
JK
1445 return RAW_IS_INODE(p);
1446}
1447
1448static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1449{
1450 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1451}
1452
1453static inline block_t datablock_addr(struct page *node_page,
1454 unsigned int offset)
1455{
1456 struct f2fs_node *raw_node;
1457 __le32 *addr_array;
45590710 1458 raw_node = F2FS_NODE(node_page);
39a53e0c
JK
1459 addr_array = blkaddr_in_node(raw_node);
1460 return le32_to_cpu(addr_array[offset]);
1461}
1462
1463static inline int f2fs_test_bit(unsigned int nr, char *addr)
1464{
1465 int mask;
1466
1467 addr += (nr >> 3);
1468 mask = 1 << (7 - (nr & 0x07));
1469 return mask & *addr;
1470}
1471
a66cdd98
JK
1472static inline void f2fs_set_bit(unsigned int nr, char *addr)
1473{
1474 int mask;
1475
1476 addr += (nr >> 3);
1477 mask = 1 << (7 - (nr & 0x07));
1478 *addr |= mask;
1479}
1480
1481static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1482{
1483 int mask;
1484
1485 addr += (nr >> 3);
1486 mask = 1 << (7 - (nr & 0x07));
1487 *addr &= ~mask;
1488}
1489
52aca074 1490static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
39a53e0c
JK
1491{
1492 int mask;
1493 int ret;
1494
1495 addr += (nr >> 3);
1496 mask = 1 << (7 - (nr & 0x07));
1497 ret = mask & *addr;
1498 *addr |= mask;
1499 return ret;
1500}
1501
52aca074 1502static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
39a53e0c
JK
1503{
1504 int mask;
1505 int ret;
1506
1507 addr += (nr >> 3);
1508 mask = 1 << (7 - (nr & 0x07));
1509 ret = mask & *addr;
1510 *addr &= ~mask;
1511 return ret;
1512}
1513
c6ac4c0e
GZ
1514static inline void f2fs_change_bit(unsigned int nr, char *addr)
1515{
1516 int mask;
1517
1518 addr += (nr >> 3);
1519 mask = 1 << (7 - (nr & 0x07));
1520 *addr ^= mask;
1521}
1522
39a53e0c
JK
1523/* used for f2fs_inode_info->flags */
1524enum {
1525 FI_NEW_INODE, /* indicate newly allocated inode */
b3783873 1526 FI_DIRTY_INODE, /* indicate inode is dirty or not */
26de9b11 1527 FI_AUTO_RECOVER, /* indicate inode is recoverable */
ed57c27f 1528 FI_DIRTY_DIR, /* indicate directory has dirty pages */
39a53e0c
JK
1529 FI_INC_LINK, /* need to increment i_nlink */
1530 FI_ACL_MODE, /* indicate acl mode */
1531 FI_NO_ALLOC, /* should not allocate any blocks */
c9b63bd0 1532 FI_FREE_NID, /* free allocated nide */
c11abd1a 1533 FI_NO_EXTENT, /* not to use the extent cache */
444c580f 1534 FI_INLINE_XATTR, /* used for inline xattr */
1001b347 1535 FI_INLINE_DATA, /* used for inline data*/
34d67deb 1536 FI_INLINE_DENTRY, /* used for inline dentry */
fff04f90
JK
1537 FI_APPEND_WRITE, /* inode has appended data */
1538 FI_UPDATE_WRITE, /* inode has in-place-update data */
88b88a66
JK
1539 FI_NEED_IPU, /* used for ipu per file */
1540 FI_ATOMIC_FILE, /* indicate atomic file */
02a1335f 1541 FI_VOLATILE_FILE, /* indicate volatile file */
3c6c2beb 1542 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1e84371f 1543 FI_DROP_CACHE, /* drop dirty page cache */
b3d208f9 1544 FI_DATA_EXIST, /* indicate data exists */
510022a8 1545 FI_INLINE_DOTS, /* indicate inline dot dentries */
d323d005 1546 FI_DO_DEFRAG, /* indicate defragment is running */
c227f912 1547 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
39a53e0c
JK
1548};
1549
205b9822
JK
1550static inline void __mark_inode_dirty_flag(struct inode *inode,
1551 int flag, bool set)
1552{
1553 switch (flag) {
1554 case FI_INLINE_XATTR:
1555 case FI_INLINE_DATA:
1556 case FI_INLINE_DENTRY:
1557 if (set)
1558 return;
1559 case FI_DATA_EXIST:
1560 case FI_INLINE_DOTS:
1561 mark_inode_dirty_sync(inode);
1562 }
1563}
1564
91942321 1565static inline void set_inode_flag(struct inode *inode, int flag)
39a53e0c 1566{
91942321
JK
1567 if (!test_bit(flag, &F2FS_I(inode)->flags))
1568 set_bit(flag, &F2FS_I(inode)->flags);
205b9822 1569 __mark_inode_dirty_flag(inode, flag, true);
39a53e0c
JK
1570}
1571
91942321 1572static inline int is_inode_flag_set(struct inode *inode, int flag)
39a53e0c 1573{
91942321 1574 return test_bit(flag, &F2FS_I(inode)->flags);
39a53e0c
JK
1575}
1576
91942321 1577static inline void clear_inode_flag(struct inode *inode, int flag)
39a53e0c 1578{
91942321
JK
1579 if (test_bit(flag, &F2FS_I(inode)->flags))
1580 clear_bit(flag, &F2FS_I(inode)->flags);
205b9822 1581 __mark_inode_dirty_flag(inode, flag, false);
39a53e0c
JK
1582}
1583
91942321 1584static inline void set_acl_inode(struct inode *inode, umode_t mode)
39a53e0c 1585{
91942321
JK
1586 F2FS_I(inode)->i_acl_mode = mode;
1587 set_inode_flag(inode, FI_ACL_MODE);
205b9822 1588 mark_inode_dirty_sync(inode);
39a53e0c
JK
1589}
1590
a1961246
JK
1591static inline void f2fs_i_links_write(struct inode *inode, bool inc)
1592{
1593 if (inc)
1594 inc_nlink(inode);
1595 else
1596 drop_nlink(inode);
1597 mark_inode_dirty_sync(inode);
1598}
1599
8edd03c8
JK
1600static inline void f2fs_i_blocks_write(struct inode *inode,
1601 blkcnt_t diff, bool add)
1602{
26de9b11
JK
1603 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1604 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1605
8edd03c8
JK
1606 inode->i_blocks = add ? inode->i_blocks + diff :
1607 inode->i_blocks - diff;
1608 mark_inode_dirty_sync(inode);
26de9b11
JK
1609 if (clean || recover)
1610 set_inode_flag(inode, FI_AUTO_RECOVER);
8edd03c8
JK
1611}
1612
fc9581c8
JK
1613static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
1614{
26de9b11
JK
1615 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1616 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1617
fc9581c8
JK
1618 if (i_size_read(inode) == i_size)
1619 return;
1620
1621 i_size_write(inode, i_size);
1622 mark_inode_dirty_sync(inode);
26de9b11
JK
1623 if (clean || recover)
1624 set_inode_flag(inode, FI_AUTO_RECOVER);
1625}
1626
1627static inline bool f2fs_skip_inode_update(struct inode *inode)
1628{
1629 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER))
1630 return false;
1631 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
fc9581c8
JK
1632}
1633
205b9822
JK
1634static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
1635{
1636 F2FS_I(inode)->i_current_depth = depth;
1637 mark_inode_dirty_sync(inode);
1638}
1639
1640static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
1641{
1642 F2FS_I(inode)->i_xattr_nid = xnid;
1643 mark_inode_dirty_sync(inode);
1644}
1645
1646static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
1647{
1648 F2FS_I(inode)->i_pino = pino;
1649 mark_inode_dirty_sync(inode);
1650}
1651
91942321 1652static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
444c580f 1653{
205b9822
JK
1654 struct f2fs_inode_info *fi = F2FS_I(inode);
1655
444c580f 1656 if (ri->i_inline & F2FS_INLINE_XATTR)
205b9822 1657 set_bit(FI_INLINE_XATTR, &fi->flags);
1001b347 1658 if (ri->i_inline & F2FS_INLINE_DATA)
205b9822 1659 set_bit(FI_INLINE_DATA, &fi->flags);
34d67deb 1660 if (ri->i_inline & F2FS_INLINE_DENTRY)
205b9822 1661 set_bit(FI_INLINE_DENTRY, &fi->flags);
b3d208f9 1662 if (ri->i_inline & F2FS_DATA_EXIST)
205b9822 1663 set_bit(FI_DATA_EXIST, &fi->flags);
510022a8 1664 if (ri->i_inline & F2FS_INLINE_DOTS)
205b9822 1665 set_bit(FI_INLINE_DOTS, &fi->flags);
444c580f
JK
1666}
1667
91942321 1668static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
444c580f
JK
1669{
1670 ri->i_inline = 0;
1671
91942321 1672 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
444c580f 1673 ri->i_inline |= F2FS_INLINE_XATTR;
91942321 1674 if (is_inode_flag_set(inode, FI_INLINE_DATA))
1001b347 1675 ri->i_inline |= F2FS_INLINE_DATA;
91942321 1676 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
34d67deb 1677 ri->i_inline |= F2FS_INLINE_DENTRY;
91942321 1678 if (is_inode_flag_set(inode, FI_DATA_EXIST))
b3d208f9 1679 ri->i_inline |= F2FS_DATA_EXIST;
91942321 1680 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
510022a8 1681 ri->i_inline |= F2FS_INLINE_DOTS;
444c580f
JK
1682}
1683
987c7c31
CY
1684static inline int f2fs_has_inline_xattr(struct inode *inode)
1685{
91942321 1686 return is_inode_flag_set(inode, FI_INLINE_XATTR);
987c7c31
CY
1687}
1688
81ca7350 1689static inline unsigned int addrs_per_inode(struct inode *inode)
de93653f 1690{
81ca7350 1691 if (f2fs_has_inline_xattr(inode))
de93653f
JK
1692 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1693 return DEF_ADDRS_PER_INODE;
1694}
1695
65985d93
JK
1696static inline void *inline_xattr_addr(struct page *page)
1697{
695fd1ed 1698 struct f2fs_inode *ri = F2FS_INODE(page);
65985d93
JK
1699 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
1700 F2FS_INLINE_XATTR_ADDRS]);
1701}
1702
1703static inline int inline_xattr_size(struct inode *inode)
1704{
987c7c31 1705 if (f2fs_has_inline_xattr(inode))
65985d93
JK
1706 return F2FS_INLINE_XATTR_ADDRS << 2;
1707 else
1708 return 0;
1709}
1710
0dbdc2ae
JK
1711static inline int f2fs_has_inline_data(struct inode *inode)
1712{
91942321 1713 return is_inode_flag_set(inode, FI_INLINE_DATA);
0dbdc2ae
JK
1714}
1715
b3d208f9
JK
1716static inline void f2fs_clear_inline_inode(struct inode *inode)
1717{
91942321
JK
1718 clear_inode_flag(inode, FI_INLINE_DATA);
1719 clear_inode_flag(inode, FI_DATA_EXIST);
b3d208f9
JK
1720}
1721
1722static inline int f2fs_exist_data(struct inode *inode)
1723{
91942321 1724 return is_inode_flag_set(inode, FI_DATA_EXIST);
b3d208f9
JK
1725}
1726
510022a8
JK
1727static inline int f2fs_has_inline_dots(struct inode *inode)
1728{
91942321 1729 return is_inode_flag_set(inode, FI_INLINE_DOTS);
510022a8
JK
1730}
1731
88b88a66
JK
1732static inline bool f2fs_is_atomic_file(struct inode *inode)
1733{
91942321 1734 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
88b88a66
JK
1735}
1736
02a1335f
JK
1737static inline bool f2fs_is_volatile_file(struct inode *inode)
1738{
91942321 1739 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
02a1335f
JK
1740}
1741
3c6c2beb
JK
1742static inline bool f2fs_is_first_block_written(struct inode *inode)
1743{
91942321 1744 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3c6c2beb
JK
1745}
1746
1e84371f
JK
1747static inline bool f2fs_is_drop_cache(struct inode *inode)
1748{
91942321 1749 return is_inode_flag_set(inode, FI_DROP_CACHE);
1e84371f
JK
1750}
1751
1001b347
HL
1752static inline void *inline_data_addr(struct page *page)
1753{
695fd1ed 1754 struct f2fs_inode *ri = F2FS_INODE(page);
1001b347
HL
1755 return (void *)&(ri->i_addr[1]);
1756}
1757
34d67deb
CY
1758static inline int f2fs_has_inline_dentry(struct inode *inode)
1759{
91942321 1760 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
34d67deb
CY
1761}
1762
9486ba44
JK
1763static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
1764{
1765 if (!f2fs_has_inline_dentry(dir))
1766 kunmap(page);
1767}
1768
b5492af7
JK
1769static inline int is_file(struct inode *inode, int type)
1770{
1771 return F2FS_I(inode)->i_advise & type;
1772}
1773
1774static inline void set_file(struct inode *inode, int type)
1775{
1776 F2FS_I(inode)->i_advise |= type;
205b9822 1777 mark_inode_dirty_sync(inode);
b5492af7
JK
1778}
1779
1780static inline void clear_file(struct inode *inode, int type)
1781{
1782 F2FS_I(inode)->i_advise &= ~type;
205b9822 1783 mark_inode_dirty_sync(inode);
b5492af7
JK
1784}
1785
77888c1e
JK
1786static inline int f2fs_readonly(struct super_block *sb)
1787{
1788 return sb->s_flags & MS_RDONLY;
1789}
1790
1e968fdf
JK
1791static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
1792{
1793 return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG);
1794}
1795
eaa693f4
JK
1796static inline bool is_dot_dotdot(const struct qstr *str)
1797{
1798 if (str->len == 1 && str->name[0] == '.')
1799 return true;
1800
1801 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
1802 return true;
1803
1804 return false;
1805}
1806
3e72f721
JK
1807static inline bool f2fs_may_extent_tree(struct inode *inode)
1808{
3e72f721 1809 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
91942321 1810 is_inode_flag_set(inode, FI_NO_EXTENT))
3e72f721
JK
1811 return false;
1812
886f56f9 1813 return S_ISREG(inode->i_mode);
3e72f721
JK
1814}
1815
0414b004
JK
1816static inline void *f2fs_kmalloc(size_t size, gfp_t flags)
1817{
2c63fead
JK
1818#ifdef CONFIG_F2FS_FAULT_INJECTION
1819 if (time_to_inject(FAULT_KMALLOC))
1820 return NULL;
1821#endif
0414b004
JK
1822 return kmalloc(size, flags);
1823}
1824
39307a8e
JK
1825static inline void *f2fs_kvmalloc(size_t size, gfp_t flags)
1826{
1827 void *ret;
1828
1829 ret = kmalloc(size, flags | __GFP_NOWARN);
1830 if (!ret)
1831 ret = __vmalloc(size, flags, PAGE_KERNEL);
1832 return ret;
1833}
1834
1835static inline void *f2fs_kvzalloc(size_t size, gfp_t flags)
1836{
1837 void *ret;
1838
1839 ret = kzalloc(size, flags | __GFP_NOWARN);
1840 if (!ret)
1841 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
1842 return ret;
1843}
1844
a6dda0e6 1845#define get_inode_mode(i) \
91942321 1846 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
a6dda0e6
CH
1847 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
1848
267378d4 1849/* get offset of first page in next direct node */
81ca7350
CY
1850#define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
1851 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
1852 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
1853 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
267378d4 1854
39a53e0c
JK
1855/*
1856 * file.c
1857 */
1858int f2fs_sync_file(struct file *, loff_t, loff_t, int);
1859void truncate_data_blocks(struct dnode_of_data *);
764aa3e9 1860int truncate_blocks(struct inode *, u64, bool);
9a449e9c 1861int f2fs_truncate(struct inode *);
2d4d9fb5 1862int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
39a53e0c
JK
1863int f2fs_setattr(struct dentry *, struct iattr *);
1864int truncate_hole(struct inode *, pgoff_t, pgoff_t);
b292dcab 1865int truncate_data_blocks_range(struct dnode_of_data *, int);
39a53e0c 1866long f2fs_ioctl(struct file *, unsigned int, unsigned long);
e9750824 1867long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long);
39a53e0c
JK
1868
1869/*
1870 * inode.c
1871 */
1872void f2fs_set_inode_flags(struct inode *);
39a53e0c 1873struct inode *f2fs_iget(struct super_block *, unsigned long);
4660f9c0 1874int try_to_free_nats(struct f2fs_sb_info *, int);
12719ae1
JK
1875int update_inode(struct inode *, struct page *);
1876int update_inode_page(struct inode *);
39a53e0c
JK
1877int f2fs_write_inode(struct inode *, struct writeback_control *);
1878void f2fs_evict_inode(struct inode *);
44c16156 1879void handle_failed_inode(struct inode *);
39a53e0c
JK
1880
1881/*
1882 * namei.c
1883 */
1884struct dentry *f2fs_get_parent(struct dentry *child);
1885
1886/*
1887 * dir.c
1888 */
dbeacf02 1889extern unsigned char f2fs_filetype_table[F2FS_FT_MAX];
510022a8 1890void set_de_type(struct f2fs_dir_entry *, umode_t);
675f10bd 1891unsigned char get_de_type(struct f2fs_dir_entry *);
0b81d077 1892struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *,
6e22c691 1893 f2fs_hash_t, int *, struct f2fs_dentry_ptr *);
7b3cd7d6 1894bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *,
0b81d077 1895 unsigned int, struct fscrypt_str *);
062a3e7b
JK
1896void do_make_empty_dir(struct inode *, struct inode *,
1897 struct f2fs_dentry_ptr *);
dbeacf02 1898struct page *init_inode_metadata(struct inode *, struct inode *,
bce8d112 1899 const struct qstr *, struct page *);
dbeacf02 1900void update_parent_metadata(struct inode *, struct inode *, unsigned int);
a82afa20 1901int room_for_filename(const void *, int, int);
9f7c45cc 1902void f2fs_drop_nlink(struct inode *, struct inode *);
39a53e0c
JK
1903struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *,
1904 struct page **);
1905struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **);
1906ino_t f2fs_inode_by_name(struct inode *, struct qstr *);
1907void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
1908 struct page *, struct inode *);
e7d55452 1909int update_dent_inode(struct inode *, struct inode *, const struct qstr *);
510022a8 1910void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *,
3b4d732a 1911 const struct qstr *, f2fs_hash_t , unsigned int);
675f10bd
CY
1912int f2fs_add_regular_entry(struct inode *, const struct qstr *,
1913 struct inode *, nid_t, umode_t);
510022a8
JK
1914int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t,
1915 umode_t);
dbeacf02
CY
1916void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *,
1917 struct inode *);
b97a9b5d 1918int f2fs_do_tmpfile(struct inode *, struct inode *);
39a53e0c
JK
1919bool f2fs_empty_dir(struct inode *);
1920
b7f7a5e0
AV
1921static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
1922{
2b0143b5 1923 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
510022a8 1924 inode, inode->i_ino, inode->i_mode);
b7f7a5e0
AV
1925}
1926
39a53e0c
JK
1927/*
1928 * super.c
1929 */
0f18b462 1930void f2fs_inode_synced(struct inode *);
c5bda1c8 1931int f2fs_commit_super(struct f2fs_sb_info *, bool);
39a53e0c 1932int f2fs_sync_fs(struct super_block *, int);
a07ef784
NJ
1933extern __printf(3, 4)
1934void f2fs_msg(struct super_block *, const char *, const char *, ...);
984ec63c 1935int sanity_check_ckpt(struct f2fs_sb_info *sbi);
39a53e0c
JK
1936
1937/*
1938 * hash.c
1939 */
eee6160f 1940f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
39a53e0c
JK
1941
1942/*
1943 * node.c
1944 */
1945struct dnode_of_data;
1946struct node_info;
1947
6fb03f3a 1948bool available_free_memory(struct f2fs_sb_info *, int);
2dcf51ab 1949int need_dentry_mark(struct f2fs_sb_info *, nid_t);
88bd02c9 1950bool is_checkpointed_node(struct f2fs_sb_info *, nid_t);
88bd02c9 1951bool need_inode_block_update(struct f2fs_sb_info *, nid_t);
39a53e0c 1952void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
3cf45747 1953pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t);
39a53e0c
JK
1954int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
1955int truncate_inode_blocks(struct inode *, pgoff_t);
4f16fb0f 1956int truncate_xattr_node(struct inode *, struct page *);
cfe58f9d 1957int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
13ec7297 1958int remove_inode_page(struct inode *);
a014e037 1959struct page *new_inode_page(struct inode *);
8ae8f162 1960struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
39a53e0c
JK
1961void ra_node_page(struct f2fs_sb_info *, nid_t);
1962struct page *get_node_page(struct f2fs_sb_info *, pgoff_t);
1963struct page *get_node_page_ra(struct page *, int);
da011cc0 1964void move_node_page(struct page *, int);
26de9b11
JK
1965int fsync_node_pages(struct f2fs_sb_info *, struct inode *,
1966 struct writeback_control *, bool);
52681375 1967int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *);
ad4edb83 1968void build_free_nids(struct f2fs_sb_info *);
39a53e0c
JK
1969bool alloc_nid(struct f2fs_sb_info *, nid_t *);
1970void alloc_nid_done(struct f2fs_sb_info *, nid_t);
1971void alloc_nid_failed(struct f2fs_sb_info *, nid_t);
31696580 1972int try_to_free_nids(struct f2fs_sb_info *, int);
70cfed88 1973void recover_inline_xattr(struct inode *, struct page *);
1c35a90e 1974void recover_xattr_data(struct inode *, struct page *, block_t);
39a53e0c
JK
1975int recover_inode_page(struct f2fs_sb_info *, struct page *);
1976int restore_node_summary(struct f2fs_sb_info *, unsigned int,
1977 struct f2fs_summary_block *);
1978void flush_nat_entries(struct f2fs_sb_info *);
1979int build_node_manager(struct f2fs_sb_info *);
1980void destroy_node_manager(struct f2fs_sb_info *);
6e6093a8 1981int __init create_node_manager_caches(void);
39a53e0c
JK
1982void destroy_node_manager_caches(void);
1983
1984/*
1985 * segment.c
1986 */
88b88a66 1987void register_inmem_page(struct inode *, struct page *);
29b96b54
CY
1988void drop_inmem_pages(struct inode *);
1989int commit_inmem_pages(struct inode *);
2c4db1a6 1990void f2fs_balance_fs(struct f2fs_sb_info *, bool);
4660f9c0 1991void f2fs_balance_fs_bg(struct f2fs_sb_info *);
6b4afdd7 1992int f2fs_issue_flush(struct f2fs_sb_info *);
2163d198
GZ
1993int create_flush_cmd_control(struct f2fs_sb_info *);
1994void destroy_flush_cmd_control(struct f2fs_sb_info *);
39a53e0c 1995void invalidate_blocks(struct f2fs_sb_info *, block_t);
6e2c64ad 1996bool is_checkpointed_data(struct f2fs_sb_info *, block_t);
5e443818 1997void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);
836b5a63 1998void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *);
4b2fecc8 1999void release_discard_addrs(struct f2fs_sb_info *);
e90c2d28 2000bool discard_next_dnode(struct f2fs_sb_info *, block_t);
3fa06d7b 2001int npages_for_summary_flush(struct f2fs_sb_info *, bool);
39a53e0c 2002void allocate_new_segments(struct f2fs_sb_info *);
4b2fecc8 2003int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *);
39a53e0c 2004struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
381722d2 2005void update_meta_page(struct f2fs_sb_info *, void *, block_t);
577e3495 2006void write_meta_page(struct f2fs_sb_info *, struct page *);
05ca3632
JK
2007void write_node_page(unsigned int, struct f2fs_io_info *);
2008void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
2009void rewrite_data_page(struct f2fs_io_info *);
4356e48e
CY
2010void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *,
2011 block_t, block_t, bool, bool);
528e3459 2012void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *,
28bc106b 2013 block_t, block_t, unsigned char, bool, bool);
bfad7c2d
JK
2014void allocate_data_block(struct f2fs_sb_info *, struct page *,
2015 block_t, block_t *, struct f2fs_summary *, int);
fec1d657 2016void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool);
08b39fbd 2017void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t);
39a53e0c
JK
2018void write_data_summaries(struct f2fs_sb_info *, block_t);
2019void write_node_summaries(struct f2fs_sb_info *, block_t);
dfc08a12 2020int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int);
4b2fecc8 2021void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *);
39a53e0c 2022int build_segment_manager(struct f2fs_sb_info *);
39a53e0c 2023void destroy_segment_manager(struct f2fs_sb_info *);
7fd9e544
JK
2024int __init create_segment_manager_caches(void);
2025void destroy_segment_manager_caches(void);
39a53e0c
JK
2026
2027/*
2028 * checkpoint.c
2029 */
38f91ca8 2030void f2fs_stop_checkpoint(struct f2fs_sb_info *, bool);
39a53e0c
JK
2031struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t);
2032struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t);
2b947003 2033struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t);
f0c9cada 2034bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int);
26879fb1 2035int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool);
635aee1f 2036void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t);
39a53e0c 2037long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long);
a49324f1
CY
2038void add_ino_entry(struct f2fs_sb_info *, nid_t, int type);
2039void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type);
74ef9241 2040void release_ino_entry(struct f2fs_sb_info *, bool);
fff04f90 2041bool exist_written_data(struct f2fs_sb_info *, nid_t, int);
0f18b462 2042int f2fs_sync_inode_meta(struct f2fs_sb_info *);
cbd56e7d
JK
2043int acquire_orphan_inode(struct f2fs_sb_info *);
2044void release_orphan_inode(struct f2fs_sb_info *);
67c3758d 2045void add_orphan_inode(struct inode *);
39a53e0c 2046void remove_orphan_inode(struct f2fs_sb_info *, nid_t);
8c14bfad 2047int recover_orphan_inodes(struct f2fs_sb_info *);
39a53e0c 2048int get_valid_checkpoint(struct f2fs_sb_info *);
a7ffdbe2 2049void update_dirty_page(struct inode *, struct page *);
c227f912 2050void remove_dirty_inode(struct inode *);
6d5a1495 2051int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type);
c34f42e2 2052int write_checkpoint(struct f2fs_sb_info *, struct cp_control *);
6451e041 2053void init_ino_entry_info(struct f2fs_sb_info *);
6e6093a8 2054int __init create_checkpoint_caches(void);
39a53e0c
JK
2055void destroy_checkpoint_caches(void);
2056
2057/*
2058 * data.c
2059 */
458e6197 2060void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
0c3a5797
CY
2061void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *,
2062 struct page *, nid_t, enum page_type, int);
406657dd 2063void f2fs_flush_merged_bios(struct f2fs_sb_info *);
05ca3632
JK
2064int f2fs_submit_page_bio(struct f2fs_io_info *);
2065void f2fs_submit_page_mbio(struct f2fs_io_info *);
216a620a 2066void set_data_blkaddr(struct dnode_of_data *);
f28b3434 2067void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t);
46008c6d 2068int reserve_new_blocks(struct dnode_of_data *, blkcnt_t);
39a53e0c 2069int reserve_new_block(struct dnode_of_data *);
759af1c9 2070int f2fs_get_block(struct dnode_of_data *, pgoff_t);
b439b103 2071ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *);
b600965c 2072int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
a56c7c6f 2073struct page *get_read_data_page(struct inode *, pgoff_t, int, bool);
43f3eae1 2074struct page *find_data_page(struct inode *, pgoff_t);
a56c7c6f 2075struct page *get_lock_data_page(struct inode *, pgoff_t, bool);
64aa7ed9 2076struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
05ca3632 2077int do_write_data_page(struct f2fs_io_info *);
d323d005 2078int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int);
9ab70134 2079int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
487261f3
CY
2080void f2fs_invalidate_page(struct page *, unsigned int, unsigned int);
2081int f2fs_release_page(struct page *, gfp_t);
39a53e0c
JK
2082
2083/*
2084 * gc.c
2085 */
2086int start_gc_thread(struct f2fs_sb_info *);
2087void stop_gc_thread(struct f2fs_sb_info *);
81ca7350 2088block_t start_bidx_of_node(unsigned int, struct inode *);
d530d4d8 2089int f2fs_gc(struct f2fs_sb_info *, bool);
39a53e0c 2090void build_gc_manager(struct f2fs_sb_info *);
39a53e0c
JK
2091
2092/*
2093 * recovery.c
2094 */
6781eabb 2095int recover_fsync_data(struct f2fs_sb_info *, bool);
39a53e0c
JK
2096bool space_for_roll_forward(struct f2fs_sb_info *);
2097
2098/*
2099 * debug.c
2100 */
2101#ifdef CONFIG_F2FS_STAT_FS
2102struct f2fs_stat_info {
2103 struct list_head stat_list;
2104 struct f2fs_sb_info *sbi;
39a53e0c
JK
2105 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2106 int main_area_segs, main_area_sections, main_area_zones;
5b7ee374
CY
2107 unsigned long long hit_largest, hit_cached, hit_rbtree;
2108 unsigned long long hit_total, total_ext;
c00ba554 2109 int ext_tree, zombie_tree, ext_node;
523be8a6 2110 s64 ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, inmem_pages;
0f18b462 2111 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
dd4e4b59 2112 int nats, dirty_nats, sits, dirty_sits, fnids;
39a53e0c 2113 int total_count, utilization;
523be8a6 2114 int bg_gc, wb_bios;
652be551 2115 int inline_xattr, inline_inode, inline_dir, orphans;
39a53e0c
JK
2116 unsigned int valid_count, valid_node_count, valid_inode_count;
2117 unsigned int bimodal, avg_vblocks;
2118 int util_free, util_valid, util_invalid;
2119 int rsvd_segs, overp_segs;
2120 int dirty_count, node_pages, meta_pages;
42190d2a 2121 int prefree_count, call_count, cp_count, bg_cp_count;
39a53e0c 2122 int tot_segs, node_segs, data_segs, free_segs, free_secs;
e1235983 2123 int bg_node_segs, bg_data_segs;
39a53e0c 2124 int tot_blks, data_blks, node_blks;
e1235983 2125 int bg_data_blks, bg_node_blks;
39a53e0c
JK
2126 int curseg[NR_CURSEG_TYPE];
2127 int cursec[NR_CURSEG_TYPE];
2128 int curzone[NR_CURSEG_TYPE];
2129
2130 unsigned int segment_count[2];
2131 unsigned int block_count[2];
b9a2c252 2132 unsigned int inplace_count;
9edcdabf 2133 unsigned long long base_mem, cache_mem, page_mem;
39a53e0c
JK
2134};
2135
963d4f7d
GZ
2136static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2137{
6c311ec6 2138 return (struct f2fs_stat_info *)sbi->stat_info;
963d4f7d
GZ
2139}
2140
942e0be6 2141#define stat_inc_cp_count(si) ((si)->cp_count++)
42190d2a 2142#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
dcdfff65
JK
2143#define stat_inc_call_count(si) ((si)->call_count++)
2144#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
33fbd510
CY
2145#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2146#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
5b7ee374
CY
2147#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2148#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2149#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2150#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
d5e8f6c9
CY
2151#define stat_inc_inline_xattr(inode) \
2152 do { \
2153 if (f2fs_has_inline_xattr(inode)) \
2154 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2155 } while (0)
2156#define stat_dec_inline_xattr(inode) \
2157 do { \
2158 if (f2fs_has_inline_xattr(inode)) \
2159 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2160 } while (0)
0dbdc2ae
JK
2161#define stat_inc_inline_inode(inode) \
2162 do { \
2163 if (f2fs_has_inline_data(inode)) \
03e14d52 2164 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
0dbdc2ae
JK
2165 } while (0)
2166#define stat_dec_inline_inode(inode) \
2167 do { \
2168 if (f2fs_has_inline_data(inode)) \
03e14d52 2169 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
0dbdc2ae 2170 } while (0)
3289c061
JK
2171#define stat_inc_inline_dir(inode) \
2172 do { \
2173 if (f2fs_has_inline_dentry(inode)) \
03e14d52 2174 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3289c061
JK
2175 } while (0)
2176#define stat_dec_inline_dir(inode) \
2177 do { \
2178 if (f2fs_has_inline_dentry(inode)) \
03e14d52 2179 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3289c061 2180 } while (0)
dcdfff65
JK
2181#define stat_inc_seg_type(sbi, curseg) \
2182 ((sbi)->segment_count[(curseg)->alloc_type]++)
2183#define stat_inc_block_count(sbi, curseg) \
2184 ((sbi)->block_count[(curseg)->alloc_type]++)
b9a2c252
CL
2185#define stat_inc_inplace_blocks(sbi) \
2186 (atomic_inc(&(sbi)->inplace_count))
e1235983 2187#define stat_inc_seg_count(sbi, type, gc_type) \
39a53e0c 2188 do { \
963d4f7d 2189 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
39a53e0c 2190 (si)->tot_segs++; \
e1235983 2191 if (type == SUM_TYPE_DATA) { \
39a53e0c 2192 si->data_segs++; \
e1235983
CL
2193 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2194 } else { \
39a53e0c 2195 si->node_segs++; \
e1235983
CL
2196 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2197 } \
39a53e0c
JK
2198 } while (0)
2199
2200#define stat_inc_tot_blk_count(si, blks) \
2201 (si->tot_blks += (blks))
2202
e1235983 2203#define stat_inc_data_blk_count(sbi, blks, gc_type) \
39a53e0c 2204 do { \
963d4f7d 2205 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
39a53e0c
JK
2206 stat_inc_tot_blk_count(si, blks); \
2207 si->data_blks += (blks); \
e1235983 2208 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
39a53e0c
JK
2209 } while (0)
2210
e1235983 2211#define stat_inc_node_blk_count(sbi, blks, gc_type) \
39a53e0c 2212 do { \
963d4f7d 2213 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
39a53e0c
JK
2214 stat_inc_tot_blk_count(si, blks); \
2215 si->node_blks += (blks); \
e1235983 2216 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
39a53e0c
JK
2217 } while (0)
2218
2219int f2fs_build_stats(struct f2fs_sb_info *);
2220void f2fs_destroy_stats(struct f2fs_sb_info *);
787c7b8c 2221int __init f2fs_create_root_stats(void);
4589d25d 2222void f2fs_destroy_root_stats(void);
39a53e0c 2223#else
942e0be6 2224#define stat_inc_cp_count(si)
42190d2a 2225#define stat_inc_bg_cp_count(si)
39a53e0c 2226#define stat_inc_call_count(si)
dcdfff65 2227#define stat_inc_bggc_count(si)
33fbd510
CY
2228#define stat_inc_dirty_inode(sbi, type)
2229#define stat_dec_dirty_inode(sbi, type)
dcdfff65 2230#define stat_inc_total_hit(sb)
029e13cc 2231#define stat_inc_rbtree_node_hit(sb)
91c481ff
CY
2232#define stat_inc_largest_node_hit(sbi)
2233#define stat_inc_cached_node_hit(sbi)
d5e8f6c9
CY
2234#define stat_inc_inline_xattr(inode)
2235#define stat_dec_inline_xattr(inode)
0dbdc2ae
JK
2236#define stat_inc_inline_inode(inode)
2237#define stat_dec_inline_inode(inode)
3289c061
JK
2238#define stat_inc_inline_dir(inode)
2239#define stat_dec_inline_dir(inode)
dcdfff65
JK
2240#define stat_inc_seg_type(sbi, curseg)
2241#define stat_inc_block_count(sbi, curseg)
b9a2c252 2242#define stat_inc_inplace_blocks(sbi)
e1235983 2243#define stat_inc_seg_count(sbi, type, gc_type)
39a53e0c 2244#define stat_inc_tot_blk_count(si, blks)
e1235983
CL
2245#define stat_inc_data_blk_count(sbi, blks, gc_type)
2246#define stat_inc_node_blk_count(sbi, blks, gc_type)
39a53e0c
JK
2247
2248static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2249static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
787c7b8c 2250static inline int __init f2fs_create_root_stats(void) { return 0; }
4589d25d 2251static inline void f2fs_destroy_root_stats(void) { }
39a53e0c
JK
2252#endif
2253
2254extern const struct file_operations f2fs_dir_operations;
2255extern const struct file_operations f2fs_file_operations;
2256extern const struct inode_operations f2fs_file_inode_operations;
2257extern const struct address_space_operations f2fs_dblock_aops;
2258extern const struct address_space_operations f2fs_node_aops;
2259extern const struct address_space_operations f2fs_meta_aops;
2260extern const struct inode_operations f2fs_dir_inode_operations;
2261extern const struct inode_operations f2fs_symlink_inode_operations;
cbaf042a 2262extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
39a53e0c 2263extern const struct inode_operations f2fs_special_inode_operations;
29e7043f 2264extern struct kmem_cache *inode_entry_slab;
1001b347 2265
e18c65b2
HL
2266/*
2267 * inline.c
2268 */
01b960e9
JK
2269bool f2fs_may_inline_data(struct inode *);
2270bool f2fs_may_inline_dentry(struct inode *);
b3d208f9 2271void read_inline_data(struct page *, struct page *);
0bfcfcca 2272bool truncate_inline_inode(struct page *, u64);
e18c65b2 2273int f2fs_read_inline_data(struct inode *, struct page *);
b3d208f9
JK
2274int f2fs_convert_inline_page(struct dnode_of_data *, struct page *);
2275int f2fs_convert_inline_inode(struct inode *);
2276int f2fs_write_inline_data(struct inode *, struct page *);
0342fd30 2277bool recover_inline_data(struct inode *, struct page *);
6e22c691 2278struct f2fs_dir_entry *find_in_inline_dir(struct inode *,
0b81d077 2279 struct fscrypt_name *, struct page **);
201a05be 2280int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *);
510022a8
JK
2281int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *,
2282 nid_t, umode_t);
201a05be
CY
2283void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *,
2284 struct inode *, struct inode *);
2285bool f2fs_empty_inline_dir(struct inode *);
d8c6822a 2286int f2fs_read_inline_dir(struct file *, struct dir_context *,
0b81d077 2287 struct fscrypt_str *);
67f8cf3c
JK
2288int f2fs_inline_data_fiemap(struct inode *,
2289 struct fiemap_extent_info *, __u64, __u64);
cde4de12 2290
2658e50d
JK
2291/*
2292 * shrinker.c
2293 */
2294unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *);
2295unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *);
2296void f2fs_join_shrinker(struct f2fs_sb_info *);
2297void f2fs_leave_shrinker(struct f2fs_sb_info *);
2298
a28ef1f5
CY
2299/*
2300 * extent_cache.c
2301 */
2302unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int);
ed3d1256 2303bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *);
a28ef1f5
CY
2304unsigned int f2fs_destroy_extent_node(struct inode *);
2305void f2fs_destroy_extent_tree(struct inode *);
2306bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *);
2307void f2fs_update_extent_cache(struct dnode_of_data *);
19b2c30d
CY
2308void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2309 pgoff_t, block_t, unsigned int);
a28ef1f5
CY
2310void init_extent_cache_info(struct f2fs_sb_info *);
2311int __init create_extent_cache(void);
2312void destroy_extent_cache(void);
2313
cde4de12
JK
2314/*
2315 * crypto support
2316 */
0b81d077 2317static inline bool f2fs_encrypted_inode(struct inode *inode)
cde4de12 2318{
cde4de12 2319 return file_is_encrypt(inode);
cde4de12
JK
2320}
2321
2322static inline void f2fs_set_encrypted_inode(struct inode *inode)
2323{
2324#ifdef CONFIG_F2FS_FS_ENCRYPTION
2325 file_set_encrypt(inode);
2326#endif
2327}
2328
2329static inline bool f2fs_bio_encrypted(struct bio *bio)
2330{
0b81d077 2331 return bio->bi_private != NULL;
cde4de12
JK
2332}
2333
2334static inline int f2fs_sb_has_crypto(struct super_block *sb)
2335{
cde4de12 2336 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
cde4de12 2337}
f424f664 2338
52763a4b
JK
2339static inline int f2fs_sb_mounted_hmsmr(struct super_block *sb)
2340{
2341 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_HMSMR);
2342}
2343
2344static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2345{
2346 clear_opt(sbi, ADAPTIVE);
2347 clear_opt(sbi, LFS);
2348
2349 switch (mt) {
2350 case F2FS_MOUNT_ADAPTIVE:
2351 set_opt(sbi, ADAPTIVE);
2352 break;
2353 case F2FS_MOUNT_LFS:
2354 set_opt(sbi, LFS);
2355 break;
2356 }
2357}
2358
fcc85a4d
JK
2359static inline bool f2fs_may_encrypt(struct inode *inode)
2360{
2361#ifdef CONFIG_F2FS_FS_ENCRYPTION
886f56f9 2362 umode_t mode = inode->i_mode;
fcc85a4d
JK
2363
2364 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
2365#else
2366 return 0;
2367#endif
2368}
2369
0b81d077
JK
2370#ifndef CONFIG_F2FS_FS_ENCRYPTION
2371#define fscrypt_set_d_op(i)
2372#define fscrypt_get_ctx fscrypt_notsupp_get_ctx
2373#define fscrypt_release_ctx fscrypt_notsupp_release_ctx
2374#define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page
2375#define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page
2376#define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages
2377#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
2378#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
2379#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
2380#define fscrypt_process_policy fscrypt_notsupp_process_policy
2381#define fscrypt_get_policy fscrypt_notsupp_get_policy
2382#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
2383#define fscrypt_inherit_context fscrypt_notsupp_inherit_context
2384#define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info
2385#define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info
2386#define fscrypt_setup_filename fscrypt_notsupp_setup_filename
2387#define fscrypt_free_filename fscrypt_notsupp_free_filename
2388#define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size
2389#define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer
2390#define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer
2391#define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr
2392#define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk
57e5055b 2393#endif
39a53e0c 2394#endif