blob: 04e96181e928d79ab7958d75c8b43732cdb2090e [file] [log] [blame]
Jaegeuk Kim0a8165d2012-11-29 13:28:09 +09001/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002 * 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>
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090017#include <linux/slab.h>
18#include <linux/crc32.h>
19#include <linux/magic.h>
Jaegeuk Kimc2d715d2013-08-08 15:56:49 +090020#include <linux/kobject.h>
Gu Zheng7bd59382013-10-22 14:52:26 +080021#include <linux/sched.h>
Jaegeuk Kim39307a82015-09-22 13:50:47 -070022#include <linux/vmalloc.h>
Jaegeuk Kim740432f2015-08-14 11:43:56 -070023#include <linux/bio.h>
Jaegeuk Kimd0239e12016-01-08 16:57:48 -080024#include <linux/blkdev.h>
Jaegeuk Kim0b81d072015-05-15 16:26:10 -070025#include <linux/fscrypto.h>
Keith Mok43b65732016-03-02 12:04:24 -080026#include <crypto/hash.h>
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090027
Jaegeuk Kim5d56b672013-10-29 15:14:54 +090028#ifdef CONFIG_F2FS_CHECK_FS
Jaegeuk Kim9850cf42014-09-02 15:52:58 -070029#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
Jaegeuk Kim5d56b672013-10-29 15:14:54 +090030#else
Jaegeuk Kim9850cf42014-09-02 15:52:58 -070031#define f2fs_bug_on(sbi, condition) \
32 do { \
33 if (unlikely(condition)) { \
34 WARN_ON(1); \
Chao Yucaf00472015-01-28 17:48:42 +080035 set_sbi_flag(sbi, SBI_NEED_FSCK); \
Jaegeuk Kim9850cf42014-09-02 15:52:58 -070036 } \
37 } while (0)
Jaegeuk Kim5d56b672013-10-29 15:14:54 +090038#endif
39
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070040#ifdef CONFIG_F2FS_FAULT_INJECTION
41enum {
42 FAULT_KMALLOC,
Jaegeuk Kimc41f3cc32016-04-29 16:17:09 -070043 FAULT_PAGE_ALLOC,
Jaegeuk Kimcb789422016-04-29 16:29:22 -070044 FAULT_ALLOC_NID,
45 FAULT_ORPHAN,
46 FAULT_BLOCK,
47 FAULT_DIR_DEPTH,
Jaegeuk Kim53aa6bb2016-05-25 15:24:18 -070048 FAULT_EVICT_INODE,
Chao Yu8b038c72016-09-18 23:30:07 +080049 FAULT_IO,
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070050 FAULT_MAX,
51};
52
Sheng Yong08796892016-05-16 12:38:50 +080053struct f2fs_fault_info {
54 atomic_t inject_ops;
55 unsigned int inject_rate;
56 unsigned int inject_type;
57};
58
59extern struct f2fs_fault_info f2fs_fault;
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070060extern char *fault_name[FAULT_MAX];
Sheng Yong08796892016-05-16 12:38:50 +080061#define IS_FAULT_SET(type) (f2fs_fault.inject_type & (1 << (type)))
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070062
63static inline bool time_to_inject(int type)
64{
Sheng Yong08796892016-05-16 12:38:50 +080065 if (!f2fs_fault.inject_rate)
66 return false;
67 if (type == FAULT_KMALLOC && !IS_FAULT_SET(type))
68 return false;
69 else if (type == FAULT_PAGE_ALLOC && !IS_FAULT_SET(type))
70 return false;
71 else if (type == FAULT_ALLOC_NID && !IS_FAULT_SET(type))
72 return false;
73 else if (type == FAULT_ORPHAN && !IS_FAULT_SET(type))
74 return false;
75 else if (type == FAULT_BLOCK && !IS_FAULT_SET(type))
76 return false;
77 else if (type == FAULT_DIR_DEPTH && !IS_FAULT_SET(type))
78 return false;
Jaegeuk Kim53aa6bb2016-05-25 15:24:18 -070079 else if (type == FAULT_EVICT_INODE && !IS_FAULT_SET(type))
80 return false;
Chao Yu8b038c72016-09-18 23:30:07 +080081 else if (type == FAULT_IO && !IS_FAULT_SET(type))
82 return false;
Sheng Yong08796892016-05-16 12:38:50 +080083
84 atomic_inc(&f2fs_fault.inject_ops);
85 if (atomic_read(&f2fs_fault.inject_ops) >= f2fs_fault.inject_rate) {
86 atomic_set(&f2fs_fault.inject_ops, 0);
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070087 printk("%sF2FS-fs : inject %s in %pF\n",
88 KERN_INFO,
89 fault_name[type],
90 __builtin_return_address(0));
91 return true;
92 }
93 return false;
94}
95#endif
96
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090097/*
98 * For mount options
99 */
100#define F2FS_MOUNT_BG_GC 0x00000001
101#define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
102#define F2FS_MOUNT_DISCARD 0x00000004
103#define F2FS_MOUNT_NOHEAP 0x00000008
104#define F2FS_MOUNT_XATTR_USER 0x00000010
105#define F2FS_MOUNT_POSIX_ACL 0x00000020
106#define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
Jaegeuk Kim444c5802013-08-08 15:16:22 +0900107#define F2FS_MOUNT_INLINE_XATTR 0x00000080
Huajun Li1001b342013-11-10 23:13:16 +0800108#define F2FS_MOUNT_INLINE_DATA 0x00000100
Chao Yu34d67de2014-09-24 18:15:19 +0800109#define F2FS_MOUNT_INLINE_DENTRY 0x00000200
110#define F2FS_MOUNT_FLUSH_MERGE 0x00000400
111#define F2FS_MOUNT_NOBARRIER 0x00000800
Jaegeuk Kimd5053a342014-10-30 22:47:03 -0700112#define F2FS_MOUNT_FASTBOOT 0x00001000
Chao Yu89672152015-02-05 17:55:51 +0800113#define F2FS_MOUNT_EXTENT_CACHE 0x00002000
Jaegeuk Kim6aefd932015-10-05 11:02:54 -0700114#define F2FS_MOUNT_FORCE_FG_GC 0x00004000
Chao Yu343f40f2015-12-16 13:12:16 +0800115#define F2FS_MOUNT_DATA_FLUSH 0x00008000
Jaegeuk Kim73faec42016-04-29 15:34:32 -0700116#define F2FS_MOUNT_FAULT_INJECTION 0x00010000
Jaegeuk Kim36abef42016-06-03 19:29:38 -0700117#define F2FS_MOUNT_ADAPTIVE 0x00020000
118#define F2FS_MOUNT_LFS 0x00040000
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900119
120#define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
121#define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
122#define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option)
123
124#define ver_after(a, b) (typecheck(unsigned long long, a) && \
125 typecheck(unsigned long long, b) && \
126 ((long long)((a) - (b)) > 0))
127
Jaegeuk Kima9841c42013-05-24 12:41:04 +0900128typedef u32 block_t; /*
129 * should not change u32, since it is the on-disk block
130 * address format, __le32.
131 */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900132typedef u32 nid_t;
133
134struct f2fs_mount_info {
135 unsigned int opt;
136};
137
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700138#define F2FS_FEATURE_ENCRYPT 0x0001
Jaegeuk Kim52763a42016-06-13 09:47:48 -0700139#define F2FS_FEATURE_HMSMR 0x0002
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700140
Jaegeuk Kim76f105a2015-04-13 15:10:36 -0700141#define F2FS_HAS_FEATURE(sb, mask) \
142 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
143#define F2FS_SET_FEATURE(sb, mask) \
144 F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask)
145#define F2FS_CLEAR_FEATURE(sb, mask) \
146 F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask)
147
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900148/*
149 * For checkpoint manager
150 */
151enum {
152 NAT_BITMAP,
153 SIT_BITMAP
154};
155
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700156enum {
157 CP_UMOUNT,
Jaegeuk Kim119ee912015-01-29 11:45:33 -0800158 CP_FASTBOOT,
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700159 CP_SYNC,
Jaegeuk Kim10027552015-04-09 17:03:53 -0700160 CP_RECOVERY,
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -0700161 CP_DISCARD,
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700162};
163
Jaegeuk Kim2d9e9c32016-08-11 10:18:38 +0800164#define DEF_BATCHED_TRIM_SECTIONS 2
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800165#define BATCHED_TRIM_SEGMENTS(sbi) \
166 (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
Jaegeuk Kima66cdd92015-04-30 22:37:50 -0700167#define BATCHED_TRIM_BLOCKS(sbi) \
168 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
Jaegeuk Kim60b99b42015-10-05 14:49:57 -0700169#define DEF_CP_INTERVAL 60 /* 60 secs */
Chao Yudcf25fe2016-07-15 19:25:47 +0800170#define DEF_IDLE_INTERVAL 5 /* 5 secs */
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800171
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700172struct cp_control {
173 int reason;
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -0700174 __u64 trim_start;
175 __u64 trim_end;
176 __u64 trim_minlen;
177 __u64 trimmed;
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700178};
179
Chao Yu662befd2014-02-07 16:11:53 +0800180/*
Chao Yu81c1a0f12014-02-27 19:12:24 +0800181 * For CP/NAT/SIT/SSA readahead
Chao Yu662befd2014-02-07 16:11:53 +0800182 */
183enum {
184 META_CP,
185 META_NAT,
Chao Yu81c1a0f12014-02-27 19:12:24 +0800186 META_SIT,
Jaegeuk Kim4c521f492014-09-11 13:49:55 -0700187 META_SSA,
188 META_POR,
Chao Yu662befd2014-02-07 16:11:53 +0800189};
190
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700191/* for the list of ino */
192enum {
193 ORPHAN_INO, /* for orphan ino list */
Jaegeuk Kimfff04f92014-07-25 07:40:59 -0700194 APPEND_INO, /* for append ino list */
195 UPDATE_INO, /* for update ino list */
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700196 MAX_INO_ENTRY, /* max. list */
197};
198
199struct ino_entry {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900200 struct list_head list; /* list head */
201 nid_t ino; /* inode number */
202};
203
Chao Yu2710fd72015-12-15 13:30:45 +0800204/* for the list of inodes to be GCed */
Chao Yu06292072014-12-29 15:56:18 +0800205struct inode_entry {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900206 struct list_head list; /* list head */
207 struct inode *inode; /* vfs inode pointer */
208};
209
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900210/* for the list of blockaddresses to be discarded */
211struct discard_entry {
212 struct list_head list; /* list head */
213 block_t blkaddr; /* block address to be discarded */
214 int len; /* # of consecutive blocks of the discard */
215};
216
Chao Yu275b66b2016-08-29 23:58:34 +0800217struct bio_entry {
218 struct list_head list;
219 struct bio *bio;
220 struct completion event;
221 int error;
222};
223
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900224/* for the list of fsync inodes, used only during recovery */
225struct fsync_inode_entry {
226 struct list_head list; /* list head */
227 struct inode *inode; /* vfs inode pointer */
Jaegeuk Kimc52e1b12014-09-11 14:29:06 -0700228 block_t blkaddr; /* block address locating the last fsync */
229 block_t last_dentry; /* block address locating the last dentry */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900230};
231
Chao Yudfc08a12016-02-14 18:50:40 +0800232#define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
233#define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900234
Chao Yudfc08a12016-02-14 18:50:40 +0800235#define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
236#define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
237#define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
238#define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900239
Chao Yudfc08a12016-02-14 18:50:40 +0800240#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
241#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700242
Chao Yudfc08a12016-02-14 18:50:40 +0800243static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900244{
Chao Yudfc08a12016-02-14 18:50:40 +0800245 int before = nats_in_cursum(journal);
246 journal->n_nats = cpu_to_le16(before + i);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900247 return before;
248}
249
Chao Yudfc08a12016-02-14 18:50:40 +0800250static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900251{
Chao Yudfc08a12016-02-14 18:50:40 +0800252 int before = sits_in_cursum(journal);
253 journal->n_sits = cpu_to_le16(before + i);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900254 return before;
255}
256
Chao Yudfc08a12016-02-14 18:50:40 +0800257static inline bool __has_cursum_space(struct f2fs_journal *journal,
258 int size, int type)
Chao Yu184a5cd2014-09-04 18:13:01 +0800259{
260 if (type == NAT_JOURNAL)
Chao Yudfc08a12016-02-14 18:50:40 +0800261 return size <= MAX_NAT_JENTRIES(journal);
262 return size <= MAX_SIT_JENTRIES(journal);
Chao Yu184a5cd2014-09-04 18:13:01 +0800263}
264
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900265/*
Namjae Jeone9750822013-02-04 23:41:41 +0900266 * ioctl commands
267 */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700268#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
269#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
Chao Yud49f3e82015-01-23 20:36:04 +0800270#define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700271
272#define F2FS_IOCTL_MAGIC 0xf5
273#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
274#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
Jaegeuk Kim02a13352014-10-06 16:11:16 -0700275#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
Jaegeuk Kim1e843712014-12-09 06:08:59 -0800276#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
277#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
Chao Yuc1c1b582015-07-10 18:08:10 +0800278#define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6)
Chao Yu456b88e2015-10-05 22:24:19 +0800279#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
Chao Yud323d002015-10-27 09:53:45 +0800280#define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
Jaegeuk Kim4dd6f972016-07-08 15:16:47 -0700281#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
282 struct f2fs_move_range)
Namjae Jeone9750822013-02-04 23:41:41 +0900283
Jaegeuk Kim0b81d072015-05-15 16:26:10 -0700284#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
285#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
286#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
Jaegeuk Kimf424f662015-04-20 15:19:06 -0700287
Jaegeuk Kim1abff932015-01-08 19:15:53 -0800288/*
289 * should be same as XFS_IOC_GOINGDOWN.
290 * Flags for going down operation used by FS_IOC_GOINGDOWN
291 */
292#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
293#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
294#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
295#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
Jaegeuk Kimc912a822015-10-07 09:46:37 -0700296#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
Jaegeuk Kim1abff932015-01-08 19:15:53 -0800297
Namjae Jeone9750822013-02-04 23:41:41 +0900298#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
299/*
300 * ioctl commands in 32 bit emulation
301 */
Chao Yu04ef4b62015-11-10 18:44:20 +0800302#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
303#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
304#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
Namjae Jeone9750822013-02-04 23:41:41 +0900305#endif
306
Chao Yud323d002015-10-27 09:53:45 +0800307struct f2fs_defragment {
308 u64 start;
309 u64 len;
310};
311
Jaegeuk Kim4dd6f972016-07-08 15:16:47 -0700312struct f2fs_move_range {
313 u32 dst_fd; /* destination fd */
314 u64 pos_in; /* start position in src_fd */
315 u64 pos_out; /* start position in dst_fd */
316 u64 len; /* size to move */
317};
318
Namjae Jeone9750822013-02-04 23:41:41 +0900319/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900320 * For INODE and NODE manager
321 */
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700322/* for directory operations */
323struct f2fs_dentry_ptr {
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700324 struct inode *inode;
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700325 const void *bitmap;
326 struct f2fs_dir_entry *dentry;
327 __u8 (*filename)[F2FS_SLOT_LEN];
328 int max;
329};
330
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700331static inline void make_dentry_ptr(struct inode *inode,
332 struct f2fs_dentry_ptr *d, void *src, int type)
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700333{
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700334 d->inode = inode;
335
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700336 if (type == 1) {
337 struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src;
338 d->max = NR_DENTRY_IN_BLOCK;
339 d->bitmap = &t->dentry_bitmap;
340 d->dentry = t->dentry;
341 d->filename = t->filename;
342 } else {
343 struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src;
344 d->max = NR_INLINE_DENTRY;
345 d->bitmap = &t->dentry_bitmap;
346 d->dentry = t->dentry;
347 d->filename = t->filename;
348 }
349}
350
Jaegeuk Kimdbe6a5f2013-08-09 08:14:06 +0900351/*
352 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
353 * as its node offset to distinguish from index node blocks.
354 * But some bits are used to mark the node block.
355 */
356#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
357 >> OFFSET_BIT_SHIFT)
Jaegeuk Kim266e97a2013-02-26 13:10:46 +0900358enum {
359 ALLOC_NODE, /* allocate a new node page if needed */
360 LOOKUP_NODE, /* look up a node without readahead */
361 LOOKUP_NODE_RA, /*
362 * look up a node with readahead called
Chao Yu4f4124d2013-12-21 18:02:14 +0800363 * by get_data_block.
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900364 */
Jaegeuk Kim266e97a2013-02-26 13:10:46 +0900365};
366
Jaegeuk Kima6db67f2015-08-10 15:01:12 -0700367#define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900368
Chao Yu817202d92014-04-28 17:59:43 +0800369#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
370
Chao Yu13054c52015-02-05 17:52:58 +0800371/* vector size for gang look-up from extent cache that consists of radix tree */
372#define EXT_TREE_VEC_SIZE 64
373
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900374/* for in-memory extent cache entry */
Chao Yu13054c52015-02-05 17:52:58 +0800375#define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
376
377/* number of extent info in extent cache we try to shrink */
378#define EXTENT_CACHE_SHRINK_NUMBER 128
Jaegeuk Kimc11abd12013-11-19 10:41:54 +0900379
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900380struct extent_info {
Chao Yu13054c52015-02-05 17:52:58 +0800381 unsigned int fofs; /* start offset in a file */
382 u32 blk; /* start block address of the extent */
383 unsigned int len; /* length of the extent */
384};
385
386struct extent_node {
387 struct rb_node rb_node; /* rb node located in rb-tree */
388 struct list_head list; /* node in global extent list of sbi */
389 struct extent_info ei; /* extent info */
Hou Pengyang201ef5e2016-01-26 12:56:26 +0000390 struct extent_tree *et; /* extent tree pointer */
Chao Yu13054c52015-02-05 17:52:58 +0800391};
392
393struct extent_tree {
394 nid_t ino; /* inode number */
395 struct rb_root root; /* root of extent info rb-tree */
Chao Yu62c8af62015-02-05 18:01:39 +0800396 struct extent_node *cached_en; /* recently accessed extent node */
Jaegeuk Kim3e72f722015-06-19 17:53:26 -0700397 struct extent_info largest; /* largested extent info */
Jaegeuk Kim137d09f2015-12-31 15:02:16 -0800398 struct list_head list; /* to be used by sbi->zombie_list */
Chao Yu13054c52015-02-05 17:52:58 +0800399 rwlock_t lock; /* protect extent info rb-tree */
Chao Yu68e35382016-01-08 20:22:52 +0800400 atomic_t node_cnt; /* # of extent node in rb-tree*/
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900401};
402
403/*
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700404 * This structure is taken from ext4_map_blocks.
405 *
406 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
407 */
408#define F2FS_MAP_NEW (1 << BH_New)
409#define F2FS_MAP_MAPPED (1 << BH_Mapped)
Jaegeuk Kim7f63eb72015-05-08 19:30:32 -0700410#define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
411#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
412 F2FS_MAP_UNWRITTEN)
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700413
414struct f2fs_map_blocks {
415 block_t m_pblk;
416 block_t m_lblk;
417 unsigned int m_len;
418 unsigned int m_flags;
Chao Yuda859852016-01-26 15:42:58 +0800419 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700420};
421
Chao Yue2b4e2b2015-08-19 19:11:19 +0800422/* for flag in get_data_block */
423#define F2FS_GET_BLOCK_READ 0
424#define F2FS_GET_BLOCK_DIO 1
425#define F2FS_GET_BLOCK_FIEMAP 2
426#define F2FS_GET_BLOCK_BMAP 3
Jaegeuk Kimb439b102016-02-03 13:09:09 -0800427#define F2FS_GET_BLOCK_PRE_DIO 4
Jaegeuk Kim24b84912016-02-03 13:49:44 -0800428#define F2FS_GET_BLOCK_PRE_AIO 5
Chao Yue2b4e2b2015-08-19 19:11:19 +0800429
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700430/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900431 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
432 */
433#define FADVISE_COLD_BIT 0x01
Jaegeuk Kim354a3392013-06-14 08:52:35 +0900434#define FADVISE_LOST_PINO_BIT 0x02
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700435#define FADVISE_ENCRYPT_BIT 0x04
Jaegeuk Kime7d55452015-04-29 17:02:18 -0700436#define FADVISE_ENC_NAME_BIT 0x08
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900437
Jaegeuk Kimb5492af72015-04-20 13:44:41 -0700438#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
439#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
440#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
441#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
442#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
443#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700444#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
445#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
446#define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
Jaegeuk Kime7d55452015-04-29 17:02:18 -0700447#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
448#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700449
Jaegeuk Kimab9fa662014-02-27 20:09:05 +0900450#define DEF_DIR_LEVEL 0
451
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900452struct f2fs_inode_info {
453 struct inode vfs_inode; /* serve a vfs inode */
454 unsigned long i_flags; /* keep an inode flags for ioctl */
455 unsigned char i_advise; /* use to give file attribute hints */
Jaegeuk Kim38431542014-02-27 18:20:00 +0900456 unsigned char i_dir_level; /* use for dentry level for large dir */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900457 unsigned int i_current_depth; /* use only in directory structure */
Jaegeuk Kim6666e6a2012-12-10 17:52:48 +0900458 unsigned int i_pino; /* parent inode number */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900459 umode_t i_acl_mode; /* keep file acl mode temporarily */
460
461 /* Use below internally in f2fs*/
462 unsigned long flags; /* use to pass per-file flags */
Jaegeuk Kimd928bfb2014-03-20 19:10:08 +0900463 struct rw_semaphore i_sem; /* protect fi info */
Jaegeuk Kim1beba1b2016-05-13 12:47:11 -0700464 struct percpu_counter dirty_pages; /* # of dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900465 f2fs_hash_t chash; /* hash value of given file name */
466 unsigned int clevel; /* maximum level of given file name */
467 nid_t i_xattr_nid; /* node id that contains xattrs */
Jaegeuk Kime518ff82013-08-09 14:46:15 +0900468 unsigned long long xattr_ver; /* cp version of xattr modification */
Jaegeuk Kim26de9b12016-05-20 20:42:37 -0700469 loff_t last_disk_size; /* lastly written file size */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700470
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700471 struct list_head dirty_list; /* dirty list for dirs and files */
472 struct list_head gdirty_list; /* linked in global dirty list */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700473 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
474 struct mutex inmem_lock; /* lock for inmemory pages */
Jaegeuk Kim3e72f722015-06-19 17:53:26 -0700475 struct extent_tree *extent_tree; /* cached extent_tree entry */
Chao Yu82e0a5a2016-07-13 09:18:29 +0800476 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900477};
478
479static inline void get_extent_info(struct extent_info *ext,
Chao Yubd933d42016-05-04 23:19:47 +0800480 struct f2fs_extent *i_ext)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900481{
Chao Yubd933d42016-05-04 23:19:47 +0800482 ext->fofs = le32_to_cpu(i_ext->fofs);
483 ext->blk = le32_to_cpu(i_ext->blk);
484 ext->len = le32_to_cpu(i_ext->len);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900485}
486
487static inline void set_raw_extent(struct extent_info *ext,
488 struct f2fs_extent *i_ext)
489{
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900490 i_ext->fofs = cpu_to_le32(ext->fofs);
Chao Yu4d0b0bd2015-02-05 17:47:25 +0800491 i_ext->blk = cpu_to_le32(ext->blk);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900492 i_ext->len = cpu_to_le32(ext->len);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900493}
494
Chao Yu429511c2015-02-05 17:54:31 +0800495static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
496 u32 blk, unsigned int len)
497{
498 ei->fofs = fofs;
499 ei->blk = blk;
500 ei->len = len;
501}
502
Chao Yu0bdee482015-03-19 19:27:51 +0800503static inline bool __is_extent_same(struct extent_info *ei1,
504 struct extent_info *ei2)
505{
506 return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk &&
507 ei1->len == ei2->len);
508}
509
Chao Yu429511c2015-02-05 17:54:31 +0800510static inline bool __is_extent_mergeable(struct extent_info *back,
511 struct extent_info *front)
512{
513 return (back->fofs + back->len == front->fofs &&
514 back->blk + back->len == front->blk);
515}
516
517static inline bool __is_back_mergeable(struct extent_info *cur,
518 struct extent_info *back)
519{
520 return __is_extent_mergeable(back, cur);
521}
522
523static inline bool __is_front_mergeable(struct extent_info *cur,
524 struct extent_info *front)
525{
526 return __is_extent_mergeable(cur, front);
527}
528
Jaegeuk Kimb56ab832016-06-30 19:09:37 -0700529extern void f2fs_mark_inode_dirty_sync(struct inode *);
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700530static inline void __try_update_largest_extent(struct inode *inode,
531 struct extent_tree *et, struct extent_node *en)
Chao Yu4abd3f52015-09-22 21:07:47 +0800532{
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700533 if (en->ei.len > et->largest.len) {
Chao Yu4abd3f52015-09-22 21:07:47 +0800534 et->largest = en->ei;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -0700535 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700536 }
Chao Yu4abd3f52015-09-22 21:07:47 +0800537}
538
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900539struct f2fs_nm_info {
540 block_t nat_blkaddr; /* base disk address of NAT */
541 nid_t max_nid; /* maximum possible node ids */
Jaegeuk Kim7ee0eea2014-04-18 11:14:37 +0900542 nid_t available_nids; /* maximum available node ids */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900543 nid_t next_scan_nid; /* the next nid to be scanned */
Jaegeuk Kimcdfc41c2014-03-19 13:31:37 +0900544 unsigned int ram_thresh; /* control the memory footprint */
Chao Yuea1a29a02015-10-12 17:08:48 +0800545 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
Chao Yu2304cb02016-01-18 18:32:58 +0800546 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900547
548 /* NAT cache management */
549 struct radix_tree_root nat_root;/* root of the nat entry cache */
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700550 struct radix_tree_root nat_set_root;/* root of the nat set cache */
Jaegeuk Kimb873b792016-08-04 11:38:25 -0700551 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900552 struct list_head nat_entries; /* cached nat entry list (clean) */
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700553 unsigned int nat_cnt; /* the # of cached nat entries */
Chao Yuaec71382014-06-24 09:18:20 +0800554 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900555
556 /* free node ids management */
Jaegeuk Kim8a7ed662014-02-21 14:29:35 +0900557 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900558 struct list_head free_nid_list; /* a list for free nids */
559 spinlock_t free_nid_list_lock; /* protect free nid list */
560 unsigned int fcnt; /* the number of free node id */
561 struct mutex build_lock; /* lock for build free nids */
562
563 /* for checkpoint */
564 char *nat_bitmap; /* NAT bitmap pointer */
565 int bitmap_size; /* bitmap size */
566};
567
568/*
569 * this structure is used as one of function parameters.
570 * all the information are dedicated to a given direct node block determined
571 * by the data offset in a file.
572 */
573struct dnode_of_data {
574 struct inode *inode; /* vfs inode pointer */
575 struct page *inode_page; /* its inode page, NULL is possible */
576 struct page *node_page; /* cached direct node page */
577 nid_t nid; /* node id of the direct node block */
578 unsigned int ofs_in_node; /* data offset in the node page */
579 bool inode_page_locked; /* inode page is locked or not */
Jaegeuk Kim93bae092015-12-22 12:59:54 -0800580 bool node_changed; /* is node block changed */
Chao Yu3cf45742016-01-26 15:40:44 +0800581 char cur_level; /* level of hole node page */
582 char max_level; /* level of current page located */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900583 block_t data_blkaddr; /* block address of the node block */
584};
585
586static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
587 struct page *ipage, struct page *npage, nid_t nid)
588{
Jaegeuk Kimd66d1f72013-01-03 08:57:21 +0900589 memset(dn, 0, sizeof(*dn));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900590 dn->inode = inode;
591 dn->inode_page = ipage;
592 dn->node_page = npage;
593 dn->nid = nid;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900594}
595
596/*
597 * For SIT manager
598 *
599 * By default, there are 6 active log areas across the whole main area.
600 * When considering hot and cold data separation to reduce cleaning overhead,
601 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
602 * respectively.
603 * In the current design, you should not change the numbers intentionally.
604 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
605 * logs individually according to the underlying devices. (default: 6)
606 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
607 * data and 8 for node logs.
608 */
609#define NR_CURSEG_DATA_TYPE (3)
610#define NR_CURSEG_NODE_TYPE (3)
611#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
612
613enum {
614 CURSEG_HOT_DATA = 0, /* directory entry blocks */
615 CURSEG_WARM_DATA, /* data blocks */
616 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
617 CURSEG_HOT_NODE, /* direct node blocks of directory files */
618 CURSEG_WARM_NODE, /* direct node blocks of normal files */
619 CURSEG_COLD_NODE, /* indirect node blocks */
Jaegeuk Kim38aa0882015-01-05 16:02:20 -0800620 NO_CHECK_TYPE,
621 CURSEG_DIRECT_IO, /* to use for the direct IO path */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900622};
623
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900624struct flush_cmd {
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900625 struct completion wait;
Gu Zheng721bd4d2014-09-05 18:31:00 +0800626 struct llist_node llnode;
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900627 int ret;
628};
629
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800630struct flush_cmd_control {
631 struct task_struct *f2fs_issue_flush; /* flush thread */
632 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
Jaegeuk Kim0a87f662016-05-23 12:04:56 -0700633 atomic_t submit_flush; /* # of issued flushes */
Gu Zheng721bd4d2014-09-05 18:31:00 +0800634 struct llist_head issue_list; /* list for command issue */
635 struct llist_node *dispatch_list; /* list for command dispatch */
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800636};
637
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900638struct f2fs_sm_info {
639 struct sit_info *sit_info; /* whole segment information */
640 struct free_segmap_info *free_info; /* free segment information */
641 struct dirty_seglist_info *dirty_info; /* dirty segment information */
642 struct curseg_info *curseg_array; /* active segment information */
643
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900644 block_t seg0_blkaddr; /* block address of 0'th segment */
645 block_t main_blkaddr; /* start block address of main area */
646 block_t ssa_blkaddr; /* start block address of SSA area */
647
648 unsigned int segment_count; /* total # of segments */
649 unsigned int main_segments; /* # of segments in main area */
650 unsigned int reserved_segments; /* # of reserved segments */
651 unsigned int ovp_segments; /* # of overprovision segments */
Jaegeuk Kim81eb8d62013-10-24 13:31:34 +0900652
653 /* a threshold to reclaim prefree segments */
654 unsigned int rec_prefree_segments;
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900655
656 /* for small discard management */
657 struct list_head discard_list; /* 4KB discard list */
Chao Yu275b66b2016-08-29 23:58:34 +0800658 struct list_head wait_list; /* linked with issued discard bio */
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900659 int nr_discards; /* # of discards in the list */
660 int max_discards; /* max. discards to be issued */
Jaegeuk Kim216fbd62013-11-07 13:13:42 +0900661
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800662 /* for batched trimming */
663 unsigned int trim_sections; /* # of sections to trim */
664
Chao Yu184a5cd2014-09-04 18:13:01 +0800665 struct list_head sit_entry_set; /* sit entry set list */
666
Jaegeuk Kim216fbd62013-11-07 13:13:42 +0900667 unsigned int ipu_policy; /* in-place-update policy */
668 unsigned int min_ipu_util; /* in-place-update threshold */
Jaegeuk Kimc1ce1b02014-09-10 16:53:02 -0700669 unsigned int min_fsync_blocks; /* threshold for fsync */
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900670
671 /* for flush command control */
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800672 struct flush_cmd_control *cmd_control_info;
673
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900674};
675
676/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900677 * For superblock
678 */
679/*
680 * COUNT_TYPE for monitoring
681 *
682 * f2fs monitors the number of several block types such as on-writeback,
683 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
684 */
685enum count_type {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900686 F2FS_DIRTY_DENTS,
Chao Yuc227f912015-12-16 13:09:20 +0800687 F2FS_DIRTY_DATA,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900688 F2FS_DIRTY_NODES,
689 F2FS_DIRTY_META,
Jaegeuk Kim8dcf2ff72014-12-05 17:18:15 -0800690 F2FS_INMEM_PAGES,
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700691 F2FS_DIRTY_IMETA,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900692 NR_COUNT_TYPE,
693};
694
695/*
arter97e1c42042014-08-06 23:22:50 +0900696 * The below are the page types of bios used in submit_bio().
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900697 * The available types are:
698 * DATA User data pages. It operates as async mode.
699 * NODE Node pages. It operates as async mode.
700 * META FS metadata pages such as SIT, NAT, CP.
701 * NR_PAGE_TYPE The number of page types.
702 * META_FLUSH Make sure the previous pages are written
703 * with waiting the bio's completion
704 * ... Only can be used with META.
705 */
Jaegeuk Kim7d5e5102013-11-18 17:13:35 +0900706#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900707enum page_type {
708 DATA,
709 NODE,
710 META,
711 NR_PAGE_TYPE,
712 META_FLUSH,
Jaegeuk Kim8ce67cb2015-03-17 17:58:08 -0700713 INMEM, /* the below types are used by tracepoints only. */
714 INMEM_DROP,
Chao Yu28bc1062016-02-06 14:40:34 +0800715 INMEM_REVOKE,
Jaegeuk Kim8ce67cb2015-03-17 17:58:08 -0700716 IPU,
717 OPU,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900718};
719
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900720struct f2fs_io_info {
Jaegeuk Kim05ca3632015-04-23 14:38:15 -0700721 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
Gu Zheng7e8f2302013-12-20 18:17:49 +0800722 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
Mike Christie04d328d2016-06-05 14:31:55 -0500723 int op; /* contains REQ_OP_ */
724 int op_flags; /* rq_flag_bits */
Chao Yu7a9d7542016-02-22 18:36:38 +0800725 block_t new_blkaddr; /* new block address to be written */
Chao Yu28bc1062016-02-06 14:40:34 +0800726 block_t old_blkaddr; /* old block address before Cow */
Jaegeuk Kim05ca3632015-04-23 14:38:15 -0700727 struct page *page; /* page to be written */
Jaegeuk Kim4375a332015-04-23 12:04:33 -0700728 struct page *encrypted_page; /* encrypted page */
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900729};
730
Mike Christie04d328d2016-06-05 14:31:55 -0500731#define is_read_io(rw) (rw == READ)
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900732struct f2fs_bio_info {
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900733 struct f2fs_sb_info *sbi; /* f2fs superblock */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900734 struct bio *bio; /* bios to merge */
735 sector_t last_block_in_bio; /* last block number */
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900736 struct f2fs_io_info fio; /* store buffered io info. */
Chao Yudf0f8dc2014-03-22 14:57:23 +0800737 struct rw_semaphore io_rwsem; /* blocking op for bio */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900738};
739
Chao Yuc227f912015-12-16 13:09:20 +0800740enum inode_type {
741 DIR_INODE, /* for dirty dir inode */
742 FILE_INODE, /* for dirty regular/symlink inode */
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700743 DIRTY_META, /* for all dirtied inode metadata */
Chao Yuc227f912015-12-16 13:09:20 +0800744 NR_INODE_TYPE,
745};
746
Chao Yu67298802014-11-18 11:18:36 +0800747/* for inner inode cache management */
748struct inode_management {
749 struct radix_tree_root ino_root; /* ino entry array */
750 spinlock_t ino_lock; /* for ino entry lock */
751 struct list_head ino_list; /* inode list head */
752 unsigned long ino_num; /* number of entries */
753};
754
Chao Yucaf00472015-01-28 17:48:42 +0800755/* For s_flag in struct f2fs_sb_info */
756enum {
757 SBI_IS_DIRTY, /* dirty flag for checkpoint */
758 SBI_IS_CLOSE, /* specify unmounting */
759 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
760 SBI_POR_DOING, /* recovery is doing or not */
Jaegeuk Kimdf728b02016-03-23 17:05:27 -0700761 SBI_NEED_SB_WRITE, /* need to recover superblock */
Jaegeuk Kimbbf156f2016-08-29 18:23:45 -0700762 SBI_NEED_CP, /* need to checkpoint */
Chao Yucaf00472015-01-28 17:48:42 +0800763};
764
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800765enum {
766 CP_TIME,
Jaegeuk Kimd0239e12016-01-08 16:57:48 -0800767 REQ_TIME,
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800768 MAX_TIME,
769};
770
Jaegeuk Kimb5a7aef2016-05-04 22:05:01 -0700771#ifdef CONFIG_F2FS_FS_ENCRYPTION
772#define F2FS_KEY_DESC_PREFIX "f2fs:"
773#define F2FS_KEY_DESC_PREFIX_SIZE 5
774#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900775struct f2fs_sb_info {
776 struct super_block *sb; /* pointer to VFS super block */
Jaegeuk Kim5e176d52013-06-28 12:47:01 +0900777 struct proc_dir_entry *s_proc; /* proc entry */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900778 struct f2fs_super_block *raw_super; /* raw super block pointer */
Chao Yue8240f62015-12-15 17:19:26 +0800779 int valid_super_block; /* valid super block no */
Chao Yufadb2fb2016-09-20 10:29:47 +0800780 unsigned long s_flag; /* flags for sbi */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900781
Jaegeuk Kimb5a7aef2016-05-04 22:05:01 -0700782#ifdef CONFIG_F2FS_FS_ENCRYPTION
783 u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE];
784 u8 key_prefix_size;
785#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900786 /* for node-related operations */
787 struct f2fs_nm_info *nm_info; /* node manager */
788 struct inode *node_inode; /* cache node blocks */
789
790 /* for segment-related operations */
791 struct f2fs_sm_info *sm_info; /* segment manager */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900792
793 /* for bio operations */
Chao Yu924b7202013-11-20 14:46:39 +0800794 struct f2fs_bio_info read_io; /* for read bios */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900795 struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
Jaegeuk Kim7dfeaa32016-06-04 14:21:28 -0700796 struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900797
798 /* for checkpoint */
799 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
800 struct inode *meta_inode; /* cache meta blocks */
Jaegeuk Kim39936832012-11-22 16:21:29 +0900801 struct mutex cp_mutex; /* checkpoint procedure lock */
Jaegeuk Kimb873b792016-08-04 11:38:25 -0700802 struct rw_semaphore cp_rwsem; /* blocking FS operations */
Chao Yub3582c62014-07-03 18:58:39 +0800803 struct rw_semaphore node_write; /* locking node writes */
Changman Leefb51b5e2013-11-07 12:48:25 +0900804 wait_queue_head_t cp_wait;
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800805 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
806 long interval_time[MAX_TIME]; /* to store thresholds */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900807
Chao Yu67298802014-11-18 11:18:36 +0800808 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700809
810 /* for orphan inode, use 0'th array */
Gu Zheng0d47c1a2013-12-26 18:24:19 +0800811 unsigned int max_orphans; /* max orphan inodes */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900812
Chao Yuc227f912015-12-16 13:09:20 +0800813 /* for inode management */
814 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
815 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900816
Chao Yu13054c52015-02-05 17:52:58 +0800817 /* for extent tree cache */
818 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
819 struct rw_semaphore extent_tree_lock; /* locking extent radix tree */
820 struct list_head extent_list; /* lru list for shrinker */
821 spinlock_t extent_lock; /* locking extent lru list */
Jaegeuk Kim7441cce2015-12-21 19:20:15 -0800822 atomic_t total_ext_tree; /* extent tree count */
Jaegeuk Kim137d09f2015-12-31 15:02:16 -0800823 struct list_head zombie_list; /* extent zombie tree list */
Jaegeuk Kim74fd8d92015-12-21 19:25:50 -0800824 atomic_t total_zombie_tree; /* extent zombie tree count */
Chao Yu13054c52015-02-05 17:52:58 +0800825 atomic_t total_ext_node; /* extent info count */
826
arter97e1c42042014-08-06 23:22:50 +0900827 /* basic filesystem units */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900828 unsigned int log_sectors_per_block; /* log2 sectors per block */
829 unsigned int log_blocksize; /* log2 block size */
830 unsigned int blocksize; /* block size */
831 unsigned int root_ino_num; /* root inode number*/
832 unsigned int node_ino_num; /* node inode number*/
833 unsigned int meta_ino_num; /* meta inode number*/
834 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
835 unsigned int blocks_per_seg; /* blocks per segment */
836 unsigned int segs_per_sec; /* segments per section */
837 unsigned int secs_per_zone; /* sections per zone */
838 unsigned int total_sections; /* total section count */
839 unsigned int total_node_count; /* total node block count */
840 unsigned int total_valid_node_count; /* valid node block count */
Chao Yue0afc4d2015-12-31 14:35:37 +0800841 loff_t max_file_blocks; /* max block index of file */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900842 int active_logs; /* # of active logs */
Jaegeuk Kimab9fa662014-02-27 20:09:05 +0900843 int dir_level; /* directory level */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900844
845 block_t user_block_count; /* # of user blocks */
846 block_t total_valid_block_count; /* # of valid blocks */
Jaegeuk Kima66cdd92015-04-30 22:37:50 -0700847 block_t discard_blks; /* discard command candidats */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900848 block_t last_valid_block_count; /* for recovery */
849 u32 s_next_generation; /* for NFS support */
Jaegeuk Kimf5730182016-05-17 16:23:36 -0700850 atomic_t nr_wb_bios; /* # of writeback bios */
Jaegeuk Kim523be8a2016-05-13 12:36:58 -0700851
852 /* # of pages, see count_type */
853 struct percpu_counter nr_pages[NR_COUNT_TYPE];
Jaegeuk Kim41382ec2016-05-16 11:06:50 -0700854 /* # of allocated blocks */
855 struct percpu_counter alloc_valid_block_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900856
Jaegeuk Kim513c5f32016-05-16 11:42:32 -0700857 /* valid inode count */
858 struct percpu_counter total_valid_inode_count;
859
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900860 struct f2fs_mount_info mount_opt; /* mount options */
861
862 /* for cleaning operations */
863 struct mutex gc_mutex; /* mutex for GC */
864 struct f2fs_gc_kthread *gc_thread; /* GC thread */
Jaegeuk Kim5ec4e492013-03-31 13:26:03 +0900865 unsigned int cur_victim_sec; /* current victim section num */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900866
Jaegeuk Kimb1c57c12014-01-08 13:45:08 +0900867 /* maximum # of trials to find a victim segment for SSR and GC */
868 unsigned int max_victim_search;
869
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900870 /*
871 * for stat information.
872 * one is for the LFS mode, and the other is for the SSR mode.
873 */
Namjae Jeon35b09d82013-05-23 22:57:53 +0900874#ifdef CONFIG_F2FS_STAT_FS
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900875 struct f2fs_stat_info *stat_info; /* FS status information */
876 unsigned int segment_count[2]; /* # of allocated segments */
877 unsigned int block_count[2]; /* # of allocated blocks */
Changman Leeb9a2c252014-12-24 02:16:54 +0900878 atomic_t inplace_count; /* # of inplace update */
Chao Yu5b7ee372015-09-30 17:38:48 +0800879 atomic64_t total_hit_ext; /* # of lookup extent cache */
880 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
881 atomic64_t read_hit_largest; /* # of hit largest extent node */
882 atomic64_t read_hit_cached; /* # of hit cached extent node */
Chao Yud5e8f6c2015-07-15 17:28:53 +0800883 atomic_t inline_xattr; /* # of inline_xattr inodes */
Chao Yu03e14d52014-12-08 19:08:20 +0800884 atomic_t inline_inode; /* # of inline_data inodes */
885 atomic_t inline_dir; /* # of inline_dentry inodes */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900886 int bg_gc; /* background gc calls */
Chao Yu33fbd512015-12-17 17:14:44 +0800887 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
Namjae Jeon35b09d82013-05-23 22:57:53 +0900888#endif
889 unsigned int last_victim[2]; /* last victim segment # */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900890 spinlock_t stat_lock; /* lock for stat operations */
Namjae Jeonb59d0ba2013-08-04 23:09:40 +0900891
892 /* For sysfs suppport */
893 struct kobject s_kobj;
894 struct completion s_kobj_unregister;
Jaegeuk Kim2658e502015-06-19 12:01:21 -0700895
896 /* For shrinker support */
897 struct list_head s_list;
898 struct mutex umount_mutex;
899 unsigned int shrinker_run_no;
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +0800900
901 /* For write statistics */
902 u64 sectors_written_start;
903 u64 kbytes_written;
Keith Mok43b65732016-03-02 12:04:24 -0800904
905 /* Reference to checksum algorithm driver via cryptoapi */
906 struct crypto_shash *s_chksum_driver;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900907};
908
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +0800909/* For write statistics. Suppose sector size is 512 bytes,
910 * and the return value is in kbytes. s is of struct f2fs_sb_info.
911 */
912#define BD_PART_WRITTEN(s) \
913(((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
914 s->sectors_written_start) >> 1)
915
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800916static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
917{
918 sbi->last_time[type] = jiffies;
919}
920
921static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
922{
923 struct timespec ts = {sbi->interval_time[type], 0};
924 unsigned long interval = timespec_to_jiffies(&ts);
925
926 return time_after(jiffies, sbi->last_time[type] + interval);
927}
928
Jaegeuk Kimd0239e12016-01-08 16:57:48 -0800929static inline bool is_idle(struct f2fs_sb_info *sbi)
930{
931 struct block_device *bdev = sbi->sb->s_bdev;
932 struct request_queue *q = bdev_get_queue(bdev);
933 struct request_list *rl = &q->root_rl;
934
935 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
936 return 0;
937
938 return f2fs_time_over(sbi, REQ_TIME);
939}
940
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900941/*
942 * Inline functions
943 */
Keith Mok43b65732016-03-02 12:04:24 -0800944static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
945 unsigned int length)
946{
947 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
948 u32 *ctx = (u32 *)shash_desc_ctx(shash);
949 int err;
950
951 shash->tfm = sbi->s_chksum_driver;
952 shash->flags = 0;
953 *ctx = F2FS_SUPER_MAGIC;
954
955 err = crypto_shash_update(shash, address, length);
956 BUG_ON(err);
957
958 return *ctx;
959}
960
961static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
962 void *buf, size_t buf_size)
963{
964 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
965}
966
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900967static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
968{
969 return container_of(inode, struct f2fs_inode_info, vfs_inode);
970}
971
972static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
973{
974 return sb->s_fs_info;
975}
976
Jaegeuk Kim40813632014-09-02 15:31:18 -0700977static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
978{
979 return F2FS_SB(inode->i_sb);
980}
981
982static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
983{
984 return F2FS_I_SB(mapping->host);
985}
986
987static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
988{
989 return F2FS_M_SB(page->mapping);
990}
991
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900992static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
993{
994 return (struct f2fs_super_block *)(sbi->raw_super);
995}
996
997static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
998{
999 return (struct f2fs_checkpoint *)(sbi->ckpt);
1000}
1001
Gu Zheng45590712013-07-15 17:57:38 +08001002static inline struct f2fs_node *F2FS_NODE(struct page *page)
1003{
1004 return (struct f2fs_node *)page_address(page);
1005}
1006
Jaegeuk Kim58bfaf42013-12-26 16:30:41 +09001007static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1008{
1009 return &((struct f2fs_node *)page_address(page))->i;
1010}
1011
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001012static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1013{
1014 return (struct f2fs_nm_info *)(sbi->nm_info);
1015}
1016
1017static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1018{
1019 return (struct f2fs_sm_info *)(sbi->sm_info);
1020}
1021
1022static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1023{
1024 return (struct sit_info *)(SM_I(sbi)->sit_info);
1025}
1026
1027static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1028{
1029 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1030}
1031
1032static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1033{
1034 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1035}
1036
Gu Zheng9df27d92014-01-20 18:37:04 +08001037static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1038{
1039 return sbi->meta_inode->i_mapping;
1040}
1041
Jaegeuk Kim4ef51a82014-01-21 18:51:16 +09001042static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1043{
1044 return sbi->node_inode->i_mapping;
1045}
1046
Chao Yucaf00472015-01-28 17:48:42 +08001047static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001048{
Chao Yufadb2fb2016-09-20 10:29:47 +08001049 return test_bit(type, &sbi->s_flag);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001050}
1051
Chao Yucaf00472015-01-28 17:48:42 +08001052static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001053{
Chao Yufadb2fb2016-09-20 10:29:47 +08001054 set_bit(type, &sbi->s_flag);
Chao Yucaf00472015-01-28 17:48:42 +08001055}
1056
1057static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1058{
Chao Yufadb2fb2016-09-20 10:29:47 +08001059 clear_bit(type, &sbi->s_flag);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001060}
1061
Jaegeuk Kimd71b5562013-08-09 15:03:21 +09001062static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1063{
1064 return le64_to_cpu(cp->checkpoint_ver);
1065}
1066
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001067static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1068{
1069 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1070 return ckpt_flags & f;
1071}
1072
1073static inline void set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1074{
1075 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1076 ckpt_flags |= f;
1077 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1078}
1079
1080static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1081{
1082 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1083 ckpt_flags &= (~f);
1084 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1085}
1086
Jaegeuk Kim3e025742016-08-02 10:56:40 -07001087static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
1088{
1089 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
1090
1091 return blk_queue_discard(q);
1092}
1093
Gu Zhenge4795562013-09-27 18:08:30 +08001094static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001095{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001096 down_read(&sbi->cp_rwsem);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001097}
1098
Gu Zhenge4795562013-09-27 18:08:30 +08001099static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001100{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001101 up_read(&sbi->cp_rwsem);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001102}
1103
Gu Zhenge4795562013-09-27 18:08:30 +08001104static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
Jaegeuk Kim39936832012-11-22 16:21:29 +09001105{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001106 down_write(&sbi->cp_rwsem);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001107}
1108
Gu Zhenge4795562013-09-27 18:08:30 +08001109static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
Jaegeuk Kim39936832012-11-22 16:21:29 +09001110{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001111 up_write(&sbi->cp_rwsem);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001112}
1113
Jaegeuk Kim119ee912015-01-29 11:45:33 -08001114static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1115{
1116 int reason = CP_SYNC;
1117
1118 if (test_opt(sbi, FASTBOOT))
1119 reason = CP_FASTBOOT;
1120 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1121 reason = CP_UMOUNT;
1122 return reason;
1123}
1124
1125static inline bool __remain_node_summaries(int reason)
1126{
1127 return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
1128}
1129
1130static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1131{
1132 return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) ||
1133 is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG));
1134}
1135
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001136/*
1137 * Check whether the given nid is within node id range.
1138 */
Namjae Jeon064e0822013-03-17 17:27:20 +09001139static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001140{
Chao Yud6b7d4b2014-06-12 13:23:41 +08001141 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1142 return -EINVAL;
Chao Yucfb271d2013-12-05 17:15:22 +08001143 if (unlikely(nid >= NM_I(sbi)->max_nid))
Namjae Jeon064e0822013-03-17 17:27:20 +09001144 return -EINVAL;
1145 return 0;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001146}
1147
1148#define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1149
1150/*
1151 * Check whether the inode has blocks or not
1152 */
1153static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1154{
1155 if (F2FS_I(inode)->i_xattr_nid)
Chris Fries6c311ec2014-01-17 14:44:39 -06001156 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001157 else
Chris Fries6c311ec2014-01-17 14:44:39 -06001158 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001159}
1160
Chao Yu4bc8e9b2014-03-17 16:35:06 +08001161static inline bool f2fs_has_xattr_block(unsigned int ofs)
1162{
1163 return ofs == XATTR_NODE_OFFSET;
1164}
1165
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001166static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001167static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
Chao Yu46008c62016-05-09 19:56:30 +08001168 struct inode *inode, blkcnt_t *count)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001169{
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001170 blkcnt_t diff;
1171
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001172#ifdef CONFIG_F2FS_FAULT_INJECTION
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001173 if (time_to_inject(FAULT_BLOCK))
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001174 return false;
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001175#endif
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001176 /*
1177 * let's increase this in prior to actual block count change in order
1178 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1179 */
1180 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
Chao Yucfb271d2013-12-05 17:15:22 +08001181
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001182 spin_lock(&sbi->stat_lock);
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001183 sbi->total_valid_block_count += (block_t)(*count);
1184 if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) {
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001185 diff = sbi->total_valid_block_count - sbi->user_block_count;
1186 *count -= diff;
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001187 sbi->total_valid_block_count = sbi->user_block_count;
Chao Yu46008c62016-05-09 19:56:30 +08001188 if (!*count) {
1189 spin_unlock(&sbi->stat_lock);
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001190 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
Chao Yu46008c62016-05-09 19:56:30 +08001191 return false;
1192 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001193 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001194 spin_unlock(&sbi->stat_lock);
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07001195
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001196 f2fs_i_blocks_write(inode, *count, true);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001197 return true;
1198}
1199
Gu Zhengda19b0d2013-11-19 18:03:27 +08001200static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001201 struct inode *inode,
1202 blkcnt_t count)
1203{
1204 spin_lock(&sbi->stat_lock);
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001205 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1206 f2fs_bug_on(sbi, inode->i_blocks < count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001207 sbi->total_valid_block_count -= (block_t)count;
1208 spin_unlock(&sbi->stat_lock);
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001209 f2fs_i_blocks_write(inode, count, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001210}
1211
1212static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1213{
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001214 percpu_counter_inc(&sbi->nr_pages[count_type]);
Chao Yu7c4abcb2016-08-18 17:46:14 +08001215
1216 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES)
1217 return;
1218
Chao Yucaf00472015-01-28 17:48:42 +08001219 set_sbi_flag(sbi, SBI_IS_DIRTY);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001220}
1221
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07001222static inline void inode_inc_dirty_pages(struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001223{
Jaegeuk Kim1beba1b2016-05-13 12:47:11 -07001224 percpu_counter_inc(&F2FS_I(inode)->dirty_pages);
Chao Yuc227f912015-12-16 13:09:20 +08001225 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1226 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001227}
1228
1229static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1230{
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001231 percpu_counter_dec(&sbi->nr_pages[count_type]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001232}
1233
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07001234static inline void inode_dec_dirty_pages(struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001235{
Chao Yu5ac9f362015-06-29 18:14:10 +08001236 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1237 !S_ISLNK(inode->i_mode))
Jaegeuk Kim1fe54f92014-02-07 10:00:06 +09001238 return;
1239
Jaegeuk Kim1beba1b2016-05-13 12:47:11 -07001240 percpu_counter_dec(&F2FS_I(inode)->dirty_pages);
Chao Yuc227f912015-12-16 13:09:20 +08001241 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1242 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001243}
1244
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001245static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001246{
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001247 return percpu_counter_sum_positive(&sbi->nr_pages[count_type]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001248}
1249
Jaegeuk Kim1beba1b2016-05-13 12:47:11 -07001250static inline s64 get_dirty_pages(struct inode *inode)
Jaegeuk Kimf8b2c1f2014-03-18 12:33:06 +09001251{
Jaegeuk Kim1beba1b2016-05-13 12:47:11 -07001252 return percpu_counter_sum_positive(&F2FS_I(inode)->dirty_pages);
Jaegeuk Kimf8b2c1f2014-03-18 12:33:06 +09001253}
1254
Namjae Jeon5ac206c2013-02-02 23:52:59 +09001255static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1256{
Chao Yu3519e3f2015-12-01 11:56:52 +08001257 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001258 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1259 sbi->log_blocks_per_seg;
1260
1261 return segs / sbi->segs_per_sec;
Namjae Jeon5ac206c2013-02-02 23:52:59 +09001262}
1263
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001264static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1265{
Jaegeuk Kim8b8343f2014-02-24 13:00:13 +09001266 return sbi->total_valid_block_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001267}
1268
Yunlei Hef83a2582016-08-18 21:01:18 +08001269static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1270{
1271 return sbi->discard_blks;
1272}
1273
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001274static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1275{
1276 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1277
1278 /* return NAT or SIT bitmap */
1279 if (flag == NAT_BITMAP)
1280 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1281 else if (flag == SIT_BITMAP)
1282 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1283
1284 return 0;
1285}
1286
Wanpeng Li55141482015-02-26 07:57:20 +08001287static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1288{
1289 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1290}
1291
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001292static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1293{
1294 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
Changman Lee1dbe4152014-05-12 12:27:43 +09001295 int offset;
1296
Wanpeng Li55141482015-02-26 07:57:20 +08001297 if (__cp_payload(sbi) > 0) {
Changman Lee1dbe4152014-05-12 12:27:43 +09001298 if (flag == NAT_BITMAP)
1299 return &ckpt->sit_nat_version_bitmap;
1300 else
Jaegeuk Kim65b85cc2014-07-30 17:25:54 -07001301 return (unsigned char *)ckpt + F2FS_BLKSIZE;
Changman Lee1dbe4152014-05-12 12:27:43 +09001302 } else {
1303 offset = (flag == NAT_BITMAP) ?
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001304 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
Changman Lee1dbe4152014-05-12 12:27:43 +09001305 return &ckpt->sit_nat_version_bitmap + offset;
1306 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001307}
1308
1309static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1310{
1311 block_t start_addr;
1312 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
Jaegeuk Kimd71b5562013-08-09 15:03:21 +09001313 unsigned long long ckpt_version = cur_cp_version(ckpt);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001314
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001315 start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001316
1317 /*
1318 * odd numbered checkpoint should at cp segment 0
arter97e1c42042014-08-06 23:22:50 +09001319 * and even segment must be at cp segment 1
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001320 */
1321 if (!(ckpt_version & 1))
1322 start_addr += sbi->blocks_per_seg;
1323
1324 return start_addr;
1325}
1326
1327static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1328{
1329 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1330}
1331
1332static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi,
Gu Zhengef86d702013-11-19 18:03:38 +08001333 struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001334{
1335 block_t valid_block_count;
1336 unsigned int valid_node_count;
1337
1338 spin_lock(&sbi->stat_lock);
1339
Gu Zhengef86d702013-11-19 18:03:38 +08001340 valid_block_count = sbi->total_valid_block_count + 1;
Chao Yucfb271d2013-12-05 17:15:22 +08001341 if (unlikely(valid_block_count > sbi->user_block_count)) {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001342 spin_unlock(&sbi->stat_lock);
1343 return false;
1344 }
1345
Gu Zhengef86d702013-11-19 18:03:38 +08001346 valid_node_count = sbi->total_valid_node_count + 1;
Chao Yucfb271d2013-12-05 17:15:22 +08001347 if (unlikely(valid_node_count > sbi->total_node_count)) {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001348 spin_unlock(&sbi->stat_lock);
1349 return false;
1350 }
1351
1352 if (inode)
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001353 f2fs_i_blocks_write(inode, 1, true);
Gu Zhengef86d702013-11-19 18:03:38 +08001354
Gu Zhengef86d702013-11-19 18:03:38 +08001355 sbi->total_valid_node_count++;
1356 sbi->total_valid_block_count++;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001357 spin_unlock(&sbi->stat_lock);
1358
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07001359 percpu_counter_inc(&sbi->alloc_valid_block_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001360 return true;
1361}
1362
1363static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
Gu Zhengef86d702013-11-19 18:03:38 +08001364 struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001365{
1366 spin_lock(&sbi->stat_lock);
1367
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001368 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1369 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1370 f2fs_bug_on(sbi, !inode->i_blocks);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001371
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001372 f2fs_i_blocks_write(inode, 1, false);
Gu Zhengef86d702013-11-19 18:03:38 +08001373 sbi->total_valid_node_count--;
1374 sbi->total_valid_block_count--;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001375
1376 spin_unlock(&sbi->stat_lock);
1377}
1378
1379static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1380{
Jaegeuk Kim8b8343f2014-02-24 13:00:13 +09001381 return sbi->total_valid_node_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001382}
1383
1384static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1385{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001386 percpu_counter_inc(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001387}
1388
Jaegeuk Kim0e802202013-11-26 16:36:20 +09001389static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001390{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001391 percpu_counter_dec(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001392}
1393
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001394static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001395{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001396 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001397}
1398
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07001399static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1400 pgoff_t index, bool for_write)
1401{
Jaegeuk Kimc41f3cc32016-04-29 16:17:09 -07001402#ifdef CONFIG_F2FS_FAULT_INJECTION
1403 struct page *page = find_lock_page(mapping, index);
1404 if (page)
1405 return page;
1406
1407 if (time_to_inject(FAULT_PAGE_ALLOC))
1408 return NULL;
1409#endif
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07001410 if (!for_write)
1411 return grab_cache_page(mapping, index);
1412 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1413}
1414
Jaegeuk Kim6e2c64a2015-10-07 12:28:41 -07001415static inline void f2fs_copy_page(struct page *src, struct page *dst)
1416{
1417 char *src_kaddr = kmap(src);
1418 char *dst_kaddr = kmap(dst);
1419
1420 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1421 kunmap(dst);
1422 kunmap(src);
1423}
1424
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001425static inline void f2fs_put_page(struct page *page, int unlock)
1426{
Jaegeuk Kim031fa8c2013-11-28 12:55:13 +09001427 if (!page)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001428 return;
1429
1430 if (unlock) {
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001431 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001432 unlock_page(page);
1433 }
Kirill A. Shutemov09cbfea2016-04-01 15:29:47 +03001434 put_page(page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001435}
1436
1437static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1438{
1439 if (dn->node_page)
1440 f2fs_put_page(dn->node_page, 1);
1441 if (dn->inode_page && dn->node_page != dn->inode_page)
1442 f2fs_put_page(dn->inode_page, 0);
1443 dn->node_page = NULL;
1444 dn->inode_page = NULL;
1445}
1446
1447static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
Gu Zhenge8512d22014-03-07 18:43:28 +08001448 size_t size)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001449{
Gu Zhenge8512d22014-03-07 18:43:28 +08001450 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001451}
1452
Gu Zheng7bd59382013-10-22 14:52:26 +08001453static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1454 gfp_t flags)
1455{
1456 void *entry;
Gu Zheng7bd59382013-10-22 14:52:26 +08001457
Jaegeuk Kim80c54502015-08-20 08:51:56 -07001458 entry = kmem_cache_alloc(cachep, flags);
1459 if (!entry)
1460 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
Gu Zheng7bd59382013-10-22 14:52:26 +08001461 return entry;
1462}
1463
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001464static inline struct bio *f2fs_bio_alloc(int npages)
1465{
1466 struct bio *bio;
1467
1468 /* No failure on bio allocation */
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001469 bio = bio_alloc(GFP_NOIO, npages);
Jaegeuk Kim80c54502015-08-20 08:51:56 -07001470 if (!bio)
1471 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001472 return bio;
1473}
1474
Jaegeuk Kim9be32d72014-12-05 10:39:49 -08001475static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1476 unsigned long index, void *item)
1477{
1478 while (radix_tree_insert(root, index, item))
1479 cond_resched();
1480}
1481
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001482#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1483
1484static inline bool IS_INODE(struct page *page)
1485{
Gu Zheng45590712013-07-15 17:57:38 +08001486 struct f2fs_node *p = F2FS_NODE(page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001487 return RAW_IS_INODE(p);
1488}
1489
1490static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1491{
1492 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1493}
1494
1495static inline block_t datablock_addr(struct page *node_page,
1496 unsigned int offset)
1497{
1498 struct f2fs_node *raw_node;
1499 __le32 *addr_array;
Gu Zheng45590712013-07-15 17:57:38 +08001500 raw_node = F2FS_NODE(node_page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001501 addr_array = blkaddr_in_node(raw_node);
1502 return le32_to_cpu(addr_array[offset]);
1503}
1504
1505static inline int f2fs_test_bit(unsigned int nr, char *addr)
1506{
1507 int mask;
1508
1509 addr += (nr >> 3);
1510 mask = 1 << (7 - (nr & 0x07));
1511 return mask & *addr;
1512}
1513
Jaegeuk Kima66cdd92015-04-30 22:37:50 -07001514static inline void f2fs_set_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
1523static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1524{
1525 int mask;
1526
1527 addr += (nr >> 3);
1528 mask = 1 << (7 - (nr & 0x07));
1529 *addr &= ~mask;
1530}
1531
Gu Zheng52aca072014-10-20 17:45:51 +08001532static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001533{
1534 int mask;
1535 int ret;
1536
1537 addr += (nr >> 3);
1538 mask = 1 << (7 - (nr & 0x07));
1539 ret = mask & *addr;
1540 *addr |= mask;
1541 return ret;
1542}
1543
Gu Zheng52aca072014-10-20 17:45:51 +08001544static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001545{
1546 int mask;
1547 int ret;
1548
1549 addr += (nr >> 3);
1550 mask = 1 << (7 - (nr & 0x07));
1551 ret = mask & *addr;
1552 *addr &= ~mask;
1553 return ret;
1554}
1555
Gu Zhengc6ac4c02014-10-20 17:45:50 +08001556static inline void f2fs_change_bit(unsigned int nr, char *addr)
1557{
1558 int mask;
1559
1560 addr += (nr >> 3);
1561 mask = 1 << (7 - (nr & 0x07));
1562 *addr ^= mask;
1563}
1564
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001565/* used for f2fs_inode_info->flags */
1566enum {
1567 FI_NEW_INODE, /* indicate newly allocated inode */
Jaegeuk Kimb3783872013-06-10 09:17:01 +09001568 FI_DIRTY_INODE, /* indicate inode is dirty or not */
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001569 FI_AUTO_RECOVER, /* indicate inode is recoverable */
Jaegeuk Kimed57c272014-04-15 11:19:28 +09001570 FI_DIRTY_DIR, /* indicate directory has dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001571 FI_INC_LINK, /* need to increment i_nlink */
1572 FI_ACL_MODE, /* indicate acl mode */
1573 FI_NO_ALLOC, /* should not allocate any blocks */
Jaegeuk Kimc9b63bd2015-06-23 10:36:08 -07001574 FI_FREE_NID, /* free allocated nide */
Jaegeuk Kimc11abd12013-11-19 10:41:54 +09001575 FI_NO_EXTENT, /* not to use the extent cache */
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001576 FI_INLINE_XATTR, /* used for inline xattr */
Huajun Li1001b342013-11-10 23:13:16 +08001577 FI_INLINE_DATA, /* used for inline data*/
Chao Yu34d67de2014-09-24 18:15:19 +08001578 FI_INLINE_DENTRY, /* used for inline dentry */
Jaegeuk Kimfff04f92014-07-25 07:40:59 -07001579 FI_APPEND_WRITE, /* inode has appended data */
1580 FI_UPDATE_WRITE, /* inode has in-place-update data */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001581 FI_NEED_IPU, /* used for ipu per file */
1582 FI_ATOMIC_FILE, /* indicate atomic file */
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001583 FI_VOLATILE_FILE, /* indicate volatile file */
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001584 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001585 FI_DROP_CACHE, /* drop dirty page cache */
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001586 FI_DATA_EXIST, /* indicate data exists */
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001587 FI_INLINE_DOTS, /* indicate inline dot dentries */
Chao Yud323d002015-10-27 09:53:45 +08001588 FI_DO_DEFRAG, /* indicate defragment is running */
Chao Yuc227f912015-12-16 13:09:20 +08001589 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001590};
1591
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001592static inline void __mark_inode_dirty_flag(struct inode *inode,
1593 int flag, bool set)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001594{
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001595 switch (flag) {
1596 case FI_INLINE_XATTR:
1597 case FI_INLINE_DATA:
1598 case FI_INLINE_DENTRY:
1599 if (set)
1600 return;
1601 case FI_DATA_EXIST:
1602 case FI_INLINE_DOTS:
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001603 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001604 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001605}
1606
Jaegeuk Kim91942322016-05-20 10:13:22 -07001607static inline void set_inode_flag(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001608{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001609 if (!test_bit(flag, &F2FS_I(inode)->flags))
1610 set_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001611 __mark_inode_dirty_flag(inode, flag, true);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001612}
1613
Jaegeuk Kim91942322016-05-20 10:13:22 -07001614static inline int is_inode_flag_set(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001615{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001616 return test_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001617}
1618
Jaegeuk Kim91942322016-05-20 10:13:22 -07001619static inline void clear_inode_flag(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001620{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001621 if (test_bit(flag, &F2FS_I(inode)->flags))
1622 clear_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001623 __mark_inode_dirty_flag(inode, flag, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001624}
1625
Jaegeuk Kim91942322016-05-20 10:13:22 -07001626static inline void set_acl_inode(struct inode *inode, umode_t mode)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001627{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001628 F2FS_I(inode)->i_acl_mode = mode;
1629 set_inode_flag(inode, FI_ACL_MODE);
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001630 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001631}
1632
Jaegeuk Kima1961242016-05-20 09:43:20 -07001633static inline void f2fs_i_links_write(struct inode *inode, bool inc)
1634{
1635 if (inc)
1636 inc_nlink(inode);
1637 else
1638 drop_nlink(inode);
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001639 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kima1961242016-05-20 09:43:20 -07001640}
1641
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001642static inline void f2fs_i_blocks_write(struct inode *inode,
1643 blkcnt_t diff, bool add)
1644{
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001645 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1646 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1647
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001648 inode->i_blocks = add ? inode->i_blocks + diff :
1649 inode->i_blocks - diff;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001650 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001651 if (clean || recover)
1652 set_inode_flag(inode, FI_AUTO_RECOVER);
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001653}
1654
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07001655static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
1656{
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001657 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1658 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1659
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07001660 if (i_size_read(inode) == i_size)
1661 return;
1662
1663 i_size_write(inode, i_size);
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001664 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001665 if (clean || recover)
1666 set_inode_flag(inode, FI_AUTO_RECOVER);
1667}
1668
1669static inline bool f2fs_skip_inode_update(struct inode *inode)
1670{
1671 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER))
1672 return false;
1673 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07001674}
1675
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001676static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
1677{
1678 F2FS_I(inode)->i_current_depth = depth;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001679 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001680}
1681
1682static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
1683{
1684 F2FS_I(inode)->i_xattr_nid = xnid;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001685 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001686}
1687
1688static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
1689{
1690 F2FS_I(inode)->i_pino = pino;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001691 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001692}
1693
Jaegeuk Kim91942322016-05-20 10:13:22 -07001694static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001695{
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001696 struct f2fs_inode_info *fi = F2FS_I(inode);
1697
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001698 if (ri->i_inline & F2FS_INLINE_XATTR)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001699 set_bit(FI_INLINE_XATTR, &fi->flags);
Huajun Li1001b342013-11-10 23:13:16 +08001700 if (ri->i_inline & F2FS_INLINE_DATA)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001701 set_bit(FI_INLINE_DATA, &fi->flags);
Chao Yu34d67de2014-09-24 18:15:19 +08001702 if (ri->i_inline & F2FS_INLINE_DENTRY)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001703 set_bit(FI_INLINE_DENTRY, &fi->flags);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001704 if (ri->i_inline & F2FS_DATA_EXIST)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001705 set_bit(FI_DATA_EXIST, &fi->flags);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001706 if (ri->i_inline & F2FS_INLINE_DOTS)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001707 set_bit(FI_INLINE_DOTS, &fi->flags);
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001708}
1709
Jaegeuk Kim91942322016-05-20 10:13:22 -07001710static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001711{
1712 ri->i_inline = 0;
1713
Jaegeuk Kim91942322016-05-20 10:13:22 -07001714 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001715 ri->i_inline |= F2FS_INLINE_XATTR;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001716 if (is_inode_flag_set(inode, FI_INLINE_DATA))
Huajun Li1001b342013-11-10 23:13:16 +08001717 ri->i_inline |= F2FS_INLINE_DATA;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001718 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
Chao Yu34d67de2014-09-24 18:15:19 +08001719 ri->i_inline |= F2FS_INLINE_DENTRY;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001720 if (is_inode_flag_set(inode, FI_DATA_EXIST))
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001721 ri->i_inline |= F2FS_DATA_EXIST;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001722 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001723 ri->i_inline |= F2FS_INLINE_DOTS;
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001724}
1725
Chao Yu987c7c32014-03-12 15:59:03 +08001726static inline int f2fs_has_inline_xattr(struct inode *inode)
1727{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001728 return is_inode_flag_set(inode, FI_INLINE_XATTR);
Chao Yu987c7c32014-03-12 15:59:03 +08001729}
1730
Chao Yu81ca7352016-01-26 15:39:35 +08001731static inline unsigned int addrs_per_inode(struct inode *inode)
Jaegeuk Kimde936532013-08-12 21:08:03 +09001732{
Chao Yu81ca7352016-01-26 15:39:35 +08001733 if (f2fs_has_inline_xattr(inode))
Jaegeuk Kimde936532013-08-12 21:08:03 +09001734 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1735 return DEF_ADDRS_PER_INODE;
1736}
1737
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001738static inline void *inline_xattr_addr(struct page *page)
1739{
Chao Yu695fd1e2014-02-27 19:52:21 +08001740 struct f2fs_inode *ri = F2FS_INODE(page);
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001741 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
1742 F2FS_INLINE_XATTR_ADDRS]);
1743}
1744
1745static inline int inline_xattr_size(struct inode *inode)
1746{
Chao Yu987c7c32014-03-12 15:59:03 +08001747 if (f2fs_has_inline_xattr(inode))
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001748 return F2FS_INLINE_XATTR_ADDRS << 2;
1749 else
1750 return 0;
1751}
1752
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09001753static inline int f2fs_has_inline_data(struct inode *inode)
1754{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001755 return is_inode_flag_set(inode, FI_INLINE_DATA);
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09001756}
1757
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001758static inline void f2fs_clear_inline_inode(struct inode *inode)
1759{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001760 clear_inode_flag(inode, FI_INLINE_DATA);
1761 clear_inode_flag(inode, FI_DATA_EXIST);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001762}
1763
1764static inline int f2fs_exist_data(struct inode *inode)
1765{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001766 return is_inode_flag_set(inode, FI_DATA_EXIST);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001767}
1768
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001769static inline int f2fs_has_inline_dots(struct inode *inode)
1770{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001771 return is_inode_flag_set(inode, FI_INLINE_DOTS);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001772}
1773
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001774static inline bool f2fs_is_atomic_file(struct inode *inode)
1775{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001776 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001777}
1778
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001779static inline bool f2fs_is_volatile_file(struct inode *inode)
1780{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001781 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001782}
1783
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001784static inline bool f2fs_is_first_block_written(struct inode *inode)
1785{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001786 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001787}
1788
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001789static inline bool f2fs_is_drop_cache(struct inode *inode)
1790{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001791 return is_inode_flag_set(inode, FI_DROP_CACHE);
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001792}
1793
Huajun Li1001b342013-11-10 23:13:16 +08001794static inline void *inline_data_addr(struct page *page)
1795{
Chao Yu695fd1e2014-02-27 19:52:21 +08001796 struct f2fs_inode *ri = F2FS_INODE(page);
Huajun Li1001b342013-11-10 23:13:16 +08001797 return (void *)&(ri->i_addr[1]);
1798}
1799
Chao Yu34d67de2014-09-24 18:15:19 +08001800static inline int f2fs_has_inline_dentry(struct inode *inode)
1801{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001802 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
Chao Yu34d67de2014-09-24 18:15:19 +08001803}
1804
Jaegeuk Kim9486ba4422014-11-21 16:36:28 -08001805static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
1806{
1807 if (!f2fs_has_inline_dentry(dir))
1808 kunmap(page);
1809}
1810
Jaegeuk Kimb5492af72015-04-20 13:44:41 -07001811static inline int is_file(struct inode *inode, int type)
1812{
1813 return F2FS_I(inode)->i_advise & type;
1814}
1815
1816static inline void set_file(struct inode *inode, int type)
1817{
1818 F2FS_I(inode)->i_advise |= type;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001819 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kimb5492af72015-04-20 13:44:41 -07001820}
1821
1822static inline void clear_file(struct inode *inode, int type)
1823{
1824 F2FS_I(inode)->i_advise &= ~type;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001825 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kimb5492af72015-04-20 13:44:41 -07001826}
1827
Jaegeuk Kim77888c12013-05-20 20:28:47 +09001828static inline int f2fs_readonly(struct super_block *sb)
1829{
1830 return sb->s_flags & MS_RDONLY;
1831}
1832
Jaegeuk Kim1e968fd2014-08-11 16:49:25 -07001833static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
1834{
1835 return is_set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG);
1836}
1837
Jaegeuk Kimeaa693f2015-04-26 00:15:29 -07001838static inline bool is_dot_dotdot(const struct qstr *str)
1839{
1840 if (str->len == 1 && str->name[0] == '.')
1841 return true;
1842
1843 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
1844 return true;
1845
1846 return false;
1847}
1848
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001849static inline bool f2fs_may_extent_tree(struct inode *inode)
1850{
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001851 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
Jaegeuk Kim91942322016-05-20 10:13:22 -07001852 is_inode_flag_set(inode, FI_NO_EXTENT))
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001853 return false;
1854
Al Viro886f56f2015-12-05 03:56:06 -05001855 return S_ISREG(inode->i_mode);
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001856}
1857
Jaegeuk Kim0414b002016-04-29 15:16:42 -07001858static inline void *f2fs_kmalloc(size_t size, gfp_t flags)
1859{
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -07001860#ifdef CONFIG_F2FS_FAULT_INJECTION
1861 if (time_to_inject(FAULT_KMALLOC))
1862 return NULL;
1863#endif
Jaegeuk Kim0414b002016-04-29 15:16:42 -07001864 return kmalloc(size, flags);
1865}
1866
Jaegeuk Kim39307a82015-09-22 13:50:47 -07001867static inline void *f2fs_kvmalloc(size_t size, gfp_t flags)
1868{
1869 void *ret;
1870
1871 ret = kmalloc(size, flags | __GFP_NOWARN);
1872 if (!ret)
1873 ret = __vmalloc(size, flags, PAGE_KERNEL);
1874 return ret;
1875}
1876
1877static inline void *f2fs_kvzalloc(size_t size, gfp_t flags)
1878{
1879 void *ret;
1880
1881 ret = kzalloc(size, flags | __GFP_NOWARN);
1882 if (!ret)
1883 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
1884 return ret;
1885}
1886
Christoph Hellwiga6dda0e2013-12-20 05:16:45 -08001887#define get_inode_mode(i) \
Jaegeuk Kim91942322016-05-20 10:13:22 -07001888 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
Christoph Hellwiga6dda0e2013-12-20 05:16:45 -08001889 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
1890
Chao Yu267378d2014-04-23 14:10:24 +08001891/* get offset of first page in next direct node */
Chao Yu81ca7352016-01-26 15:39:35 +08001892#define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
1893 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
1894 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
1895 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
Chao Yu267378d2014-04-23 14:10:24 +08001896
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001897/*
1898 * file.c
1899 */
1900int f2fs_sync_file(struct file *, loff_t, loff_t, int);
1901void truncate_data_blocks(struct dnode_of_data *);
Jaegeuk Kim764aa3e2014-08-14 16:32:54 -07001902int truncate_blocks(struct inode *, u64, bool);
Jaegeuk Kim9a449e92016-06-02 13:49:38 -07001903int f2fs_truncate(struct inode *);
Jaegeuk Kim2d4d9fb52013-06-07 16:33:07 +09001904int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001905int f2fs_setattr(struct dentry *, struct iattr *);
1906int truncate_hole(struct inode *, pgoff_t, pgoff_t);
Jaegeuk Kimb292dcab2013-05-22 08:02:02 +09001907int truncate_data_blocks_range(struct dnode_of_data *, int);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001908long f2fs_ioctl(struct file *, unsigned int, unsigned long);
Namjae Jeone9750822013-02-04 23:41:41 +09001909long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001910
1911/*
1912 * inode.c
1913 */
1914void f2fs_set_inode_flags(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001915struct inode *f2fs_iget(struct super_block *, unsigned long);
Jaegeuk Kime8ea9b32016-09-09 16:59:39 -07001916struct inode *f2fs_iget_retry(struct super_block *, unsigned long);
Jaegeuk Kim4660f9c2013-10-24 14:19:18 +09001917int try_to_free_nats(struct f2fs_sb_info *, int);
Jaegeuk Kim12719ae2016-01-07 13:23:12 -08001918int update_inode(struct inode *, struct page *);
1919int update_inode_page(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001920int f2fs_write_inode(struct inode *, struct writeback_control *);
1921void f2fs_evict_inode(struct inode *);
Jaegeuk Kim44c16152014-09-25 11:55:53 -07001922void handle_failed_inode(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001923
1924/*
1925 * namei.c
1926 */
1927struct dentry *f2fs_get_parent(struct dentry *child);
1928
1929/*
1930 * dir.c
1931 */
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001932void set_de_type(struct f2fs_dir_entry *, umode_t);
Chao Yu675f10b2016-02-22 18:29:18 +08001933unsigned char get_de_type(struct f2fs_dir_entry *);
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07001934struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *,
Jaegeuk Kim6e22c692015-04-27 17:12:39 -07001935 f2fs_hash_t, int *, struct f2fs_dentry_ptr *);
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -07001936bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07001937 unsigned int, struct fscrypt_str *);
Jaegeuk Kim062a3e72014-10-18 23:06:41 -07001938void do_make_empty_dir(struct inode *, struct inode *,
1939 struct f2fs_dentry_ptr *);
Chao Yudbeacf02014-09-24 18:17:04 +08001940struct page *init_inode_metadata(struct inode *, struct inode *,
Chao Yu9421d572016-08-28 18:57:55 +08001941 const struct qstr *, const struct qstr *, struct page *);
Chao Yudbeacf02014-09-24 18:17:04 +08001942void update_parent_metadata(struct inode *, struct inode *, unsigned int);
Jaegeuk Kima82afa22014-10-13 16:28:13 -07001943int room_for_filename(const void *, int, int);
Jaegeuk Kim9f7c45c2016-06-01 21:18:25 -07001944void f2fs_drop_nlink(struct inode *, struct inode *);
Shuoran Liue7ba1082016-08-29 11:27:56 +08001945struct f2fs_dir_entry *__f2fs_find_entry(struct inode *, struct fscrypt_name *,
1946 struct page **);
Al Viro185de682016-07-20 23:07:13 -04001947struct f2fs_dir_entry *f2fs_find_entry(struct inode *, const struct qstr *,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001948 struct page **);
1949struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **);
Linus Torvalds835c92d2016-08-06 09:49:02 -04001950ino_t f2fs_inode_by_name(struct inode *, const struct qstr *, struct page **);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001951void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
1952 struct page *, struct inode *);
Jaegeuk Kime7d55452015-04-29 17:02:18 -07001953int update_dent_inode(struct inode *, struct inode *, const struct qstr *);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001954void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *,
Chao Yu3b4d7322015-02-16 16:17:20 +08001955 const struct qstr *, f2fs_hash_t , unsigned int);
Chao Yu675f10b2016-02-22 18:29:18 +08001956int f2fs_add_regular_entry(struct inode *, const struct qstr *,
Chao Yu9421d572016-08-28 18:57:55 +08001957 const struct qstr *, struct inode *, nid_t, umode_t);
Shuoran Liue7ba1082016-08-29 11:27:56 +08001958int __f2fs_do_add_link(struct inode *, struct fscrypt_name*, struct inode *,
1959 nid_t, umode_t);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001960int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t,
1961 umode_t);
Chao Yudbeacf02014-09-24 18:17:04 +08001962void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *,
1963 struct inode *);
Jaegeuk Kimb97a9b52014-06-20 21:37:02 -07001964int f2fs_do_tmpfile(struct inode *, struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001965bool f2fs_empty_dir(struct inode *);
1966
Al Virob7f7a5e2013-01-25 16:15:43 -05001967static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
1968{
David Howells2b0143b2015-03-17 22:25:59 +00001969 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001970 inode, inode->i_ino, inode->i_mode);
Al Virob7f7a5e2013-01-25 16:15:43 -05001971}
1972
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001973/*
1974 * super.c
1975 */
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001976int f2fs_inode_dirtied(struct inode *);
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07001977void f2fs_inode_synced(struct inode *);
Chao Yuc5bda1c2015-06-08 13:28:03 +08001978int f2fs_commit_super(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001979int f2fs_sync_fs(struct super_block *, int);
Namjae Jeona07ef782012-12-30 14:52:05 +09001980extern __printf(3, 4)
1981void f2fs_msg(struct super_block *, const char *, const char *, ...);
Shawn Lin984ec632016-02-17 11:26:32 +08001982int sanity_check_ckpt(struct f2fs_sb_info *sbi);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001983
1984/*
1985 * hash.c
1986 */
Gu Zhengeee61602014-06-24 18:21:23 +08001987f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001988
1989/*
1990 * node.c
1991 */
1992struct dnode_of_data;
1993struct node_info;
1994
Jaegeuk Kim6fb03f32014-04-16 10:47:06 +09001995bool available_free_memory(struct f2fs_sb_info *, int);
Jaegeuk Kim2dcf51a2015-04-29 18:31:19 -07001996int need_dentry_mark(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim88bd02c2014-09-15 14:50:48 -07001997bool is_checkpointed_node(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim88bd02c2014-09-15 14:50:48 -07001998bool need_inode_block_update(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001999void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
Chao Yu3cf45742016-01-26 15:40:44 +08002000pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002001int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
2002int truncate_inode_blocks(struct inode *, pgoff_t);
Jaegeuk Kim4f16fb02013-08-14 20:40:06 +09002003int truncate_xattr_node(struct inode *, struct page *);
Jaegeuk Kimcfe58f92013-10-31 14:57:01 +09002004int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
Chao Yu13ec7292015-08-24 17:40:45 +08002005int remove_inode_page(struct inode *);
Jaegeuk Kima014e032014-06-20 21:44:02 -07002006struct page *new_inode_page(struct inode *);
Jaegeuk Kim8ae8f162013-06-03 19:46:19 +09002007struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002008void ra_node_page(struct f2fs_sb_info *, nid_t);
2009struct page *get_node_page(struct f2fs_sb_info *, pgoff_t);
2010struct page *get_node_page_ra(struct page *, int);
Chao Yuda011cc2016-04-27 21:40:15 +08002011void move_node_page(struct page *, int);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07002012int fsync_node_pages(struct f2fs_sb_info *, struct inode *,
2013 struct writeback_control *, bool);
Jaegeuk Kim52681372016-04-13 16:24:44 -07002014int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *);
Jaegeuk Kimad4edb82016-06-16 16:41:49 -07002015void build_free_nids(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002016bool alloc_nid(struct f2fs_sb_info *, nid_t *);
2017void alloc_nid_done(struct f2fs_sb_info *, nid_t);
2018void alloc_nid_failed(struct f2fs_sb_info *, nid_t);
Chao Yu31696582015-07-28 18:33:46 +08002019int try_to_free_nids(struct f2fs_sb_info *, int);
Chao Yu70cfed82014-08-02 15:26:04 +08002020void recover_inline_xattr(struct inode *, struct page *);
Jaegeuk Kim1c35a902014-08-07 23:49:17 -07002021void recover_xattr_data(struct inode *, struct page *, block_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002022int recover_inode_page(struct f2fs_sb_info *, struct page *);
2023int restore_node_summary(struct f2fs_sb_info *, unsigned int,
2024 struct f2fs_summary_block *);
2025void flush_nat_entries(struct f2fs_sb_info *);
2026int build_node_manager(struct f2fs_sb_info *);
2027void destroy_node_manager(struct f2fs_sb_info *);
Namjae Jeon6e6093a2013-01-17 00:08:30 +09002028int __init create_node_manager_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002029void destroy_node_manager_caches(void);
2030
2031/*
2032 * segment.c
2033 */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07002034void register_inmem_page(struct inode *, struct page *);
Chao Yu29b96b52016-02-06 14:38:29 +08002035void drop_inmem_pages(struct inode *);
2036int commit_inmem_pages(struct inode *);
Jaegeuk Kim2c4db1a2016-01-07 14:15:04 -08002037void f2fs_balance_fs(struct f2fs_sb_info *, bool);
Jaegeuk Kim4660f9c2013-10-24 14:19:18 +09002038void f2fs_balance_fs_bg(struct f2fs_sb_info *);
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +09002039int f2fs_issue_flush(struct f2fs_sb_info *);
Gu Zheng2163d192014-04-27 14:21:33 +08002040int create_flush_cmd_control(struct f2fs_sb_info *);
2041void destroy_flush_cmd_control(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002042void invalidate_blocks(struct f2fs_sb_info *, block_t);
Jaegeuk Kim6e2c64a2015-10-07 12:28:41 -07002043bool is_checkpointed_data(struct f2fs_sb_info *, block_t);
Jaegeuk Kim5e443812014-01-28 12:22:14 +09002044void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);
Chao Yu275b66b2016-08-29 23:58:34 +08002045void f2fs_wait_all_discard_bio(struct f2fs_sb_info *);
Jaegeuk Kim836b5a62015-04-30 22:50:06 -07002046void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002047void release_discard_addrs(struct f2fs_sb_info *);
Chao Yu3fa06d72014-12-09 14:21:46 +08002048int npages_for_summary_flush(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002049void allocate_new_segments(struct f2fs_sb_info *);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002050int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002051struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
Chao Yu381722d2015-05-19 17:40:04 +08002052void update_meta_page(struct f2fs_sb_info *, void *, block_t);
Jaegeuk Kim577e3492013-01-24 19:56:11 +09002053void write_meta_page(struct f2fs_sb_info *, struct page *);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002054void write_node_page(unsigned int, struct f2fs_io_info *);
2055void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
2056void rewrite_data_page(struct f2fs_io_info *);
Chao Yu4356e482016-02-23 17:52:43 +08002057void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *,
2058 block_t, block_t, bool, bool);
Chao Yu528e3452015-05-28 19:15:35 +08002059void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *,
Chao Yu28bc1062016-02-06 14:40:34 +08002060 block_t, block_t, unsigned char, bool, bool);
Jaegeuk Kimbfad7c22013-12-16 19:04:05 +09002061void allocate_data_block(struct f2fs_sb_info *, struct page *,
2062 block_t, block_t *, struct f2fs_summary *, int);
Jaegeuk Kimfec1d652016-01-20 23:43:51 +08002063void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool);
Chao Yu08b39fb2015-10-08 13:27:34 +08002064void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002065void write_data_summaries(struct f2fs_sb_info *, block_t);
2066void write_node_summaries(struct f2fs_sb_info *, block_t);
Chao Yudfc08a12016-02-14 18:50:40 +08002067int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002068void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002069int build_segment_manager(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002070void destroy_segment_manager(struct f2fs_sb_info *);
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +09002071int __init create_segment_manager_caches(void);
2072void destroy_segment_manager_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002073
2074/*
2075 * checkpoint.c
2076 */
Jaegeuk Kim38f91ca2016-05-18 14:07:56 -07002077void f2fs_stop_checkpoint(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002078struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t);
2079struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t);
Chao Yu2b947002015-10-12 17:04:21 +08002080struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t);
Chao Yuf0c9cad2015-04-18 18:05:36 +08002081bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int);
Chao Yu26879fb2015-10-12 17:05:59 +08002082int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool);
Chao Yu635aee12014-12-08 15:02:52 +08002083void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002084long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long);
Chao Yua49324f2015-12-15 13:29:47 +08002085void add_ino_entry(struct f2fs_sb_info *, nid_t, int type);
2086void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type);
Jaegeuk Kim74ef9242016-05-02 22:09:56 -07002087void release_ino_entry(struct f2fs_sb_info *, bool);
Jaegeuk Kimfff04f92014-07-25 07:40:59 -07002088bool exist_written_data(struct f2fs_sb_info *, nid_t, int);
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07002089int f2fs_sync_inode_meta(struct f2fs_sb_info *);
Jaegeuk Kimcbd56e72013-07-30 11:36:53 +09002090int acquire_orphan_inode(struct f2fs_sb_info *);
2091void release_orphan_inode(struct f2fs_sb_info *);
Jaegeuk Kim67c37582016-06-13 18:27:02 -07002092void add_orphan_inode(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002093void remove_orphan_inode(struct f2fs_sb_info *, nid_t);
Chao Yu8c14bfa2015-08-07 17:58:43 +08002094int recover_orphan_inodes(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002095int get_valid_checkpoint(struct f2fs_sb_info *);
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07002096void update_dirty_page(struct inode *, struct page *);
Chao Yuc227f912015-12-16 13:09:20 +08002097void remove_dirty_inode(struct inode *);
Chao Yu6d5a1492015-12-24 18:04:56 +08002098int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type);
Chao Yuc34f42e2015-12-23 17:50:30 +08002099int write_checkpoint(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim6451e042014-07-25 15:47:17 -07002100void init_ino_entry_info(struct f2fs_sb_info *);
Namjae Jeon6e6093a2013-01-17 00:08:30 +09002101int __init create_checkpoint_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002102void destroy_checkpoint_caches(void);
2103
2104/*
2105 * data.c
2106 */
Jaegeuk Kim458e6192013-12-11 13:54:01 +09002107void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
Chao Yu0c3a5792016-01-18 18:28:11 +08002108void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *,
2109 struct page *, nid_t, enum page_type, int);
Chao Yu406657d2016-02-24 17:17:55 +08002110void f2fs_flush_merged_bios(struct f2fs_sb_info *);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002111int f2fs_submit_page_bio(struct f2fs_io_info *);
2112void f2fs_submit_page_mbio(struct f2fs_io_info *);
Chao Yu216a6202015-03-19 19:23:32 +08002113void set_data_blkaddr(struct dnode_of_data *);
Chao Yuf28b3432016-02-24 17:16:47 +08002114void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t);
Chao Yu46008c62016-05-09 19:56:30 +08002115int reserve_new_blocks(struct dnode_of_data *, blkcnt_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002116int reserve_new_block(struct dnode_of_data *);
Fan Li759af1c2015-08-05 15:52:16 +08002117int f2fs_get_block(struct dnode_of_data *, pgoff_t);
Jaegeuk Kimb439b102016-02-03 13:09:09 -08002118ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *);
Huajun Lib6009652013-11-10 23:13:18 +08002119int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07002120struct page *get_read_data_page(struct inode *, pgoff_t, int, bool);
Jaegeuk Kim43f3eae2015-04-30 17:00:33 -07002121struct page *find_data_page(struct inode *, pgoff_t);
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07002122struct page *get_lock_data_page(struct inode *, pgoff_t, bool);
Jaegeuk Kim64aa7ed2013-05-20 09:55:50 +09002123struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002124int do_write_data_page(struct f2fs_io_info *);
Chao Yud323d002015-10-27 09:53:45 +08002125int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int);
Jaegeuk Kim9ab70132014-06-08 04:30:14 +09002126int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
Jaegeuk Kimfe76b792016-06-30 18:40:10 -07002127void f2fs_set_page_dirty_nobuffers(struct page *);
Chao Yu487261f2015-02-05 17:44:29 +08002128void f2fs_invalidate_page(struct page *, unsigned int, unsigned int);
2129int f2fs_release_page(struct page *, gfp_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002130
2131/*
2132 * gc.c
2133 */
2134int start_gc_thread(struct f2fs_sb_info *);
2135void stop_gc_thread(struct f2fs_sb_info *);
Chao Yu81ca7352016-01-26 15:39:35 +08002136block_t start_bidx_of_node(unsigned int, struct inode *);
Chao Yud530d4d2015-10-05 22:22:44 +08002137int f2fs_gc(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002138void build_gc_manager(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002139
2140/*
2141 * recovery.c
2142 */
Jaegeuk Kim6781eab2016-03-23 16:12:58 -07002143int recover_fsync_data(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002144bool space_for_roll_forward(struct f2fs_sb_info *);
2145
2146/*
2147 * debug.c
2148 */
2149#ifdef CONFIG_F2FS_STAT_FS
2150struct f2fs_stat_info {
2151 struct list_head stat_list;
2152 struct f2fs_sb_info *sbi;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002153 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2154 int main_area_segs, main_area_sections, main_area_zones;
Chao Yu5b7ee372015-09-30 17:38:48 +08002155 unsigned long long hit_largest, hit_cached, hit_rbtree;
2156 unsigned long long hit_total, total_ext;
Jaegeuk Kimc00ba552015-12-31 15:24:14 -08002157 int ext_tree, zombie_tree, ext_node;
Chao Yu5bc994a2016-09-18 23:30:08 +08002158 s64 ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2159 s64 inmem_pages;
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07002160 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
Jaegeuk Kimdd4e4b52015-01-07 11:09:37 -08002161 int nats, dirty_nats, sits, dirty_sits, fnids;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002162 int total_count, utilization;
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07002163 int bg_gc, wb_bios;
Jaegeuk Kim652be552016-05-10 19:13:50 -07002164 int inline_xattr, inline_inode, inline_dir, orphans;
Yunlei Hef83a2582016-08-18 21:01:18 +08002165 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002166 unsigned int bimodal, avg_vblocks;
2167 int util_free, util_valid, util_invalid;
2168 int rsvd_segs, overp_segs;
2169 int dirty_count, node_pages, meta_pages;
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002170 int prefree_count, call_count, cp_count, bg_cp_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002171 int tot_segs, node_segs, data_segs, free_segs, free_secs;
Changman Leee1235982014-12-23 08:37:39 +09002172 int bg_node_segs, bg_data_segs;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002173 int tot_blks, data_blks, node_blks;
Changman Leee1235982014-12-23 08:37:39 +09002174 int bg_data_blks, bg_node_blks;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002175 int curseg[NR_CURSEG_TYPE];
2176 int cursec[NR_CURSEG_TYPE];
2177 int curzone[NR_CURSEG_TYPE];
2178
2179 unsigned int segment_count[2];
2180 unsigned int block_count[2];
Changman Leeb9a2c252014-12-24 02:16:54 +09002181 unsigned int inplace_count;
Chao Yu9edcdab2015-09-11 14:43:52 +08002182 unsigned long long base_mem, cache_mem, page_mem;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002183};
2184
Gu Zheng963d4f72013-07-12 14:47:11 +08002185static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2186{
Chris Fries6c311ec2014-01-17 14:44:39 -06002187 return (struct f2fs_stat_info *)sbi->stat_info;
Gu Zheng963d4f72013-07-12 14:47:11 +08002188}
2189
Changman Lee942e0be2014-02-13 15:12:29 +09002190#define stat_inc_cp_count(si) ((si)->cp_count++)
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002191#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002192#define stat_inc_call_count(si) ((si)->call_count++)
2193#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
Chao Yu33fbd512015-12-17 17:14:44 +08002194#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2195#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
Chao Yu5b7ee372015-09-30 17:38:48 +08002196#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2197#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2198#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2199#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
Chao Yud5e8f6c2015-07-15 17:28:53 +08002200#define stat_inc_inline_xattr(inode) \
2201 do { \
2202 if (f2fs_has_inline_xattr(inode)) \
2203 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2204 } while (0)
2205#define stat_dec_inline_xattr(inode) \
2206 do { \
2207 if (f2fs_has_inline_xattr(inode)) \
2208 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2209 } while (0)
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002210#define stat_inc_inline_inode(inode) \
2211 do { \
2212 if (f2fs_has_inline_data(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002213 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002214 } while (0)
2215#define stat_dec_inline_inode(inode) \
2216 do { \
2217 if (f2fs_has_inline_data(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002218 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002219 } while (0)
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002220#define stat_inc_inline_dir(inode) \
2221 do { \
2222 if (f2fs_has_inline_dentry(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002223 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002224 } while (0)
2225#define stat_dec_inline_dir(inode) \
2226 do { \
2227 if (f2fs_has_inline_dentry(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002228 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002229 } while (0)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002230#define stat_inc_seg_type(sbi, curseg) \
2231 ((sbi)->segment_count[(curseg)->alloc_type]++)
2232#define stat_inc_block_count(sbi, curseg) \
2233 ((sbi)->block_count[(curseg)->alloc_type]++)
Changman Leeb9a2c252014-12-24 02:16:54 +09002234#define stat_inc_inplace_blocks(sbi) \
2235 (atomic_inc(&(sbi)->inplace_count))
Changman Leee1235982014-12-23 08:37:39 +09002236#define stat_inc_seg_count(sbi, type, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002237 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002238 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002239 (si)->tot_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002240 if (type == SUM_TYPE_DATA) { \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002241 si->data_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002242 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2243 } else { \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002244 si->node_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002245 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2246 } \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002247 } while (0)
2248
2249#define stat_inc_tot_blk_count(si, blks) \
2250 (si->tot_blks += (blks))
2251
Changman Leee1235982014-12-23 08:37:39 +09002252#define stat_inc_data_blk_count(sbi, blks, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002253 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002254 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002255 stat_inc_tot_blk_count(si, blks); \
2256 si->data_blks += (blks); \
Changman Leee1235982014-12-23 08:37:39 +09002257 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002258 } while (0)
2259
Changman Leee1235982014-12-23 08:37:39 +09002260#define stat_inc_node_blk_count(sbi, blks, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002261 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002262 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002263 stat_inc_tot_blk_count(si, blks); \
2264 si->node_blks += (blks); \
Changman Leee1235982014-12-23 08:37:39 +09002265 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002266 } while (0)
2267
2268int f2fs_build_stats(struct f2fs_sb_info *);
2269void f2fs_destroy_stats(struct f2fs_sb_info *);
Chao Yu787c7b8c2015-10-29 09:13:04 +08002270int __init f2fs_create_root_stats(void);
Namjae Jeon4589d252013-01-15 19:58:47 +09002271void f2fs_destroy_root_stats(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002272#else
Changman Lee942e0be2014-02-13 15:12:29 +09002273#define stat_inc_cp_count(si)
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002274#define stat_inc_bg_cp_count(si)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002275#define stat_inc_call_count(si)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002276#define stat_inc_bggc_count(si)
Chao Yu33fbd512015-12-17 17:14:44 +08002277#define stat_inc_dirty_inode(sbi, type)
2278#define stat_dec_dirty_inode(sbi, type)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002279#define stat_inc_total_hit(sb)
Chao Yu029e13c2015-08-19 19:13:25 +08002280#define stat_inc_rbtree_node_hit(sb)
Chao Yu91c481f2015-08-19 19:12:20 +08002281#define stat_inc_largest_node_hit(sbi)
2282#define stat_inc_cached_node_hit(sbi)
Chao Yud5e8f6c2015-07-15 17:28:53 +08002283#define stat_inc_inline_xattr(inode)
2284#define stat_dec_inline_xattr(inode)
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002285#define stat_inc_inline_inode(inode)
2286#define stat_dec_inline_inode(inode)
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002287#define stat_inc_inline_dir(inode)
2288#define stat_dec_inline_dir(inode)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002289#define stat_inc_seg_type(sbi, curseg)
2290#define stat_inc_block_count(sbi, curseg)
Changman Leeb9a2c252014-12-24 02:16:54 +09002291#define stat_inc_inplace_blocks(sbi)
Changman Leee1235982014-12-23 08:37:39 +09002292#define stat_inc_seg_count(sbi, type, gc_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002293#define stat_inc_tot_blk_count(si, blks)
Changman Leee1235982014-12-23 08:37:39 +09002294#define stat_inc_data_blk_count(sbi, blks, gc_type)
2295#define stat_inc_node_blk_count(sbi, blks, gc_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002296
2297static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2298static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
Chao Yu787c7b8c2015-10-29 09:13:04 +08002299static inline int __init f2fs_create_root_stats(void) { return 0; }
Namjae Jeon4589d252013-01-15 19:58:47 +09002300static inline void f2fs_destroy_root_stats(void) { }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002301#endif
2302
2303extern const struct file_operations f2fs_dir_operations;
2304extern const struct file_operations f2fs_file_operations;
2305extern const struct inode_operations f2fs_file_inode_operations;
2306extern const struct address_space_operations f2fs_dblock_aops;
2307extern const struct address_space_operations f2fs_node_aops;
2308extern const struct address_space_operations f2fs_meta_aops;
2309extern const struct inode_operations f2fs_dir_inode_operations;
2310extern const struct inode_operations f2fs_symlink_inode_operations;
Jaegeuk Kimcbaf0422015-04-29 15:10:53 -07002311extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002312extern const struct inode_operations f2fs_special_inode_operations;
Jaegeuk Kim29e70432015-02-10 16:23:12 -08002313extern struct kmem_cache *inode_entry_slab;
Huajun Li1001b342013-11-10 23:13:16 +08002314
Huajun Lie18c65b2013-11-10 23:13:19 +08002315/*
2316 * inline.c
2317 */
Jaegeuk Kim01b960e2015-04-23 10:27:21 -07002318bool f2fs_may_inline_data(struct inode *);
2319bool f2fs_may_inline_dentry(struct inode *);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002320void read_inline_data(struct page *, struct page *);
Chao Yu0bfcfcc2015-03-10 13:16:25 +08002321bool truncate_inline_inode(struct page *, u64);
Huajun Lie18c65b2013-11-10 23:13:19 +08002322int f2fs_read_inline_data(struct inode *, struct page *);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002323int f2fs_convert_inline_page(struct dnode_of_data *, struct page *);
2324int f2fs_convert_inline_inode(struct inode *);
2325int f2fs_write_inline_data(struct inode *, struct page *);
Jaegeuk Kim0342fd32014-08-07 16:57:17 -07002326bool recover_inline_data(struct inode *, struct page *);
Jaegeuk Kim6e22c692015-04-27 17:12:39 -07002327struct f2fs_dir_entry *find_in_inline_dir(struct inode *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002328 struct fscrypt_name *, struct page **);
Chao Yu201a05b2014-09-24 18:17:53 +08002329int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *);
Chao Yu9421d572016-08-28 18:57:55 +08002330int f2fs_add_inline_entry(struct inode *, const struct qstr *,
2331 const struct qstr *, struct inode *, nid_t, umode_t);
Chao Yu201a05b2014-09-24 18:17:53 +08002332void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *,
2333 struct inode *, struct inode *);
2334bool f2fs_empty_inline_dir(struct inode *);
Jaegeuk Kimd8c68222015-04-27 16:26:24 -07002335int f2fs_read_inline_dir(struct file *, struct dir_context *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002336 struct fscrypt_str *);
Jaegeuk Kim67f8cf3c2015-10-15 11:34:49 -07002337int f2fs_inline_data_fiemap(struct inode *,
2338 struct fiemap_extent_info *, __u64, __u64);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002339
2340/*
Jaegeuk Kim2658e502015-06-19 12:01:21 -07002341 * shrinker.c
2342 */
2343unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *);
2344unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *);
2345void f2fs_join_shrinker(struct f2fs_sb_info *);
2346void f2fs_leave_shrinker(struct f2fs_sb_info *);
2347
2348/*
Chao Yua28ef1f2015-07-08 17:59:36 +08002349 * extent_cache.c
2350 */
2351unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int);
Jaegeuk Kimed3d1252015-12-28 11:39:06 -08002352bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *);
Jaegeuk Kim5f281fa2016-07-12 11:07:52 -07002353void f2fs_drop_extent_tree(struct inode *);
Chao Yua28ef1f2015-07-08 17:59:36 +08002354unsigned int f2fs_destroy_extent_node(struct inode *);
2355void f2fs_destroy_extent_tree(struct inode *);
2356bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *);
2357void f2fs_update_extent_cache(struct dnode_of_data *);
Chao Yu19b2c302015-08-26 20:34:48 +08002358void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2359 pgoff_t, block_t, unsigned int);
Chao Yua28ef1f2015-07-08 17:59:36 +08002360void init_extent_cache_info(struct f2fs_sb_info *);
2361int __init create_extent_cache(void);
2362void destroy_extent_cache(void);
2363
2364/*
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002365 * crypto support
2366 */
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002367static inline bool f2fs_encrypted_inode(struct inode *inode)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002368{
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002369 return file_is_encrypt(inode);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002370}
2371
2372static inline void f2fs_set_encrypted_inode(struct inode *inode)
2373{
2374#ifdef CONFIG_F2FS_FS_ENCRYPTION
2375 file_set_encrypt(inode);
2376#endif
2377}
2378
2379static inline bool f2fs_bio_encrypted(struct bio *bio)
2380{
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002381 return bio->bi_private != NULL;
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002382}
2383
2384static inline int f2fs_sb_has_crypto(struct super_block *sb)
2385{
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002386 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002387}
Jaegeuk Kimf424f662015-04-20 15:19:06 -07002388
Jaegeuk Kim52763a42016-06-13 09:47:48 -07002389static inline int f2fs_sb_mounted_hmsmr(struct super_block *sb)
2390{
2391 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_HMSMR);
2392}
2393
2394static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2395{
2396 clear_opt(sbi, ADAPTIVE);
2397 clear_opt(sbi, LFS);
2398
2399 switch (mt) {
2400 case F2FS_MOUNT_ADAPTIVE:
2401 set_opt(sbi, ADAPTIVE);
2402 break;
2403 case F2FS_MOUNT_LFS:
2404 set_opt(sbi, LFS);
2405 break;
2406 }
2407}
2408
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07002409static inline bool f2fs_may_encrypt(struct inode *inode)
2410{
2411#ifdef CONFIG_F2FS_FS_ENCRYPTION
Al Viro886f56f2015-12-05 03:56:06 -05002412 umode_t mode = inode->i_mode;
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07002413
2414 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
2415#else
2416 return 0;
2417#endif
2418}
2419
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002420#ifndef CONFIG_F2FS_FS_ENCRYPTION
2421#define fscrypt_set_d_op(i)
2422#define fscrypt_get_ctx fscrypt_notsupp_get_ctx
2423#define fscrypt_release_ctx fscrypt_notsupp_release_ctx
2424#define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page
2425#define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page
2426#define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages
2427#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
2428#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
2429#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
2430#define fscrypt_process_policy fscrypt_notsupp_process_policy
2431#define fscrypt_get_policy fscrypt_notsupp_get_policy
2432#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
2433#define fscrypt_inherit_context fscrypt_notsupp_inherit_context
2434#define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info
2435#define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info
2436#define fscrypt_setup_filename fscrypt_notsupp_setup_filename
2437#define fscrypt_free_filename fscrypt_notsupp_free_filename
2438#define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size
2439#define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer
2440#define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer
2441#define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr
2442#define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk
Jaegeuk Kim57e50552015-04-20 19:52:47 -07002443#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002444#endif