blob: 0d7eaddef4a0b265a769c8fadb648dfa9d65ff7e [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,
Chao Yu0f348022016-09-26 19:45:55 +080050 FAULT_CHECKPOINT,
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070051 FAULT_MAX,
52};
53
Sheng Yong08796892016-05-16 12:38:50 +080054struct f2fs_fault_info {
55 atomic_t inject_ops;
56 unsigned int inject_rate;
57 unsigned int inject_type;
58};
59
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070060extern char *fault_name[FAULT_MAX];
Chao Yu1ecc0c52016-09-23 21:30:09 +080061#define IS_FAULT_SET(fi, type) (fi->inject_type & (1 << (type)))
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070062#endif
63
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090064/*
65 * For mount options
66 */
67#define F2FS_MOUNT_BG_GC 0x00000001
68#define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
69#define F2FS_MOUNT_DISCARD 0x00000004
70#define F2FS_MOUNT_NOHEAP 0x00000008
71#define F2FS_MOUNT_XATTR_USER 0x00000010
72#define F2FS_MOUNT_POSIX_ACL 0x00000020
73#define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
Jaegeuk Kim444c5802013-08-08 15:16:22 +090074#define F2FS_MOUNT_INLINE_XATTR 0x00000080
Huajun Li1001b342013-11-10 23:13:16 +080075#define F2FS_MOUNT_INLINE_DATA 0x00000100
Chao Yu34d67de2014-09-24 18:15:19 +080076#define F2FS_MOUNT_INLINE_DENTRY 0x00000200
77#define F2FS_MOUNT_FLUSH_MERGE 0x00000400
78#define F2FS_MOUNT_NOBARRIER 0x00000800
Jaegeuk Kimd5053a342014-10-30 22:47:03 -070079#define F2FS_MOUNT_FASTBOOT 0x00001000
Chao Yu89672152015-02-05 17:55:51 +080080#define F2FS_MOUNT_EXTENT_CACHE 0x00002000
Jaegeuk Kim6aefd932015-10-05 11:02:54 -070081#define F2FS_MOUNT_FORCE_FG_GC 0x00004000
Chao Yu343f40f2015-12-16 13:12:16 +080082#define F2FS_MOUNT_DATA_FLUSH 0x00008000
Jaegeuk Kim73faec42016-04-29 15:34:32 -070083#define F2FS_MOUNT_FAULT_INJECTION 0x00010000
Jaegeuk Kim36abef42016-06-03 19:29:38 -070084#define F2FS_MOUNT_ADAPTIVE 0x00020000
85#define F2FS_MOUNT_LFS 0x00040000
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090086
87#define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
88#define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
89#define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option)
90
91#define ver_after(a, b) (typecheck(unsigned long long, a) && \
92 typecheck(unsigned long long, b) && \
93 ((long long)((a) - (b)) > 0))
94
Jaegeuk Kima9841c42013-05-24 12:41:04 +090095typedef u32 block_t; /*
96 * should not change u32, since it is the on-disk block
97 * address format, __le32.
98 */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090099typedef u32 nid_t;
100
101struct f2fs_mount_info {
102 unsigned int opt;
103};
104
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700105#define F2FS_FEATURE_ENCRYPT 0x0001
Damien Le Moal0bfd7a02016-10-28 17:45:00 +0900106#define F2FS_FEATURE_BLKZONED 0x0002
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700107
Jaegeuk Kim76f105a2015-04-13 15:10:36 -0700108#define F2FS_HAS_FEATURE(sb, mask) \
109 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
110#define F2FS_SET_FEATURE(sb, mask) \
111 F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask)
112#define F2FS_CLEAR_FEATURE(sb, mask) \
113 F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask)
114
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900115/*
116 * For checkpoint manager
117 */
118enum {
119 NAT_BITMAP,
120 SIT_BITMAP
121};
122
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700123enum {
124 CP_UMOUNT,
Jaegeuk Kim119ee912015-01-29 11:45:33 -0800125 CP_FASTBOOT,
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700126 CP_SYNC,
Jaegeuk Kim10027552015-04-09 17:03:53 -0700127 CP_RECOVERY,
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -0700128 CP_DISCARD,
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700129};
130
Jaegeuk Kim2d9e9c32016-08-11 10:18:38 +0800131#define DEF_BATCHED_TRIM_SECTIONS 2
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800132#define BATCHED_TRIM_SEGMENTS(sbi) \
133 (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
Jaegeuk Kima66cdd92015-04-30 22:37:50 -0700134#define BATCHED_TRIM_BLOCKS(sbi) \
135 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
Jaegeuk Kim60b99b42015-10-05 14:49:57 -0700136#define DEF_CP_INTERVAL 60 /* 60 secs */
Chao Yudcf25fe2016-07-15 19:25:47 +0800137#define DEF_IDLE_INTERVAL 5 /* 5 secs */
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800138
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700139struct cp_control {
140 int reason;
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -0700141 __u64 trim_start;
142 __u64 trim_end;
143 __u64 trim_minlen;
144 __u64 trimmed;
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700145};
146
Chao Yu662befd2014-02-07 16:11:53 +0800147/*
Chao Yu81c1a0f12014-02-27 19:12:24 +0800148 * For CP/NAT/SIT/SSA readahead
Chao Yu662befd2014-02-07 16:11:53 +0800149 */
150enum {
151 META_CP,
152 META_NAT,
Chao Yu81c1a0f12014-02-27 19:12:24 +0800153 META_SIT,
Jaegeuk Kim4c521f492014-09-11 13:49:55 -0700154 META_SSA,
155 META_POR,
Chao Yu662befd2014-02-07 16:11:53 +0800156};
157
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700158/* for the list of ino */
159enum {
160 ORPHAN_INO, /* for orphan ino list */
Jaegeuk Kimfff04f92014-07-25 07:40:59 -0700161 APPEND_INO, /* for append ino list */
162 UPDATE_INO, /* for update ino list */
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700163 MAX_INO_ENTRY, /* max. list */
164};
165
166struct ino_entry {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900167 struct list_head list; /* list head */
168 nid_t ino; /* inode number */
169};
170
Chao Yu2710fd72015-12-15 13:30:45 +0800171/* for the list of inodes to be GCed */
Chao Yu06292072014-12-29 15:56:18 +0800172struct inode_entry {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900173 struct list_head list; /* list head */
174 struct inode *inode; /* vfs inode pointer */
175};
176
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900177/* for the list of blockaddresses to be discarded */
178struct discard_entry {
179 struct list_head list; /* list head */
180 block_t blkaddr; /* block address to be discarded */
181 int len; /* # of consecutive blocks of the discard */
182};
183
Chao Yu275b66b2016-08-29 23:58:34 +0800184struct bio_entry {
185 struct list_head list;
186 struct bio *bio;
187 struct completion event;
188 int error;
189};
190
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900191/* for the list of fsync inodes, used only during recovery */
192struct fsync_inode_entry {
193 struct list_head list; /* list head */
194 struct inode *inode; /* vfs inode pointer */
Jaegeuk Kimc52e1b12014-09-11 14:29:06 -0700195 block_t blkaddr; /* block address locating the last fsync */
196 block_t last_dentry; /* block address locating the last dentry */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900197};
198
Chao Yudfc08a12016-02-14 18:50:40 +0800199#define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
200#define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900201
Chao Yudfc08a12016-02-14 18:50:40 +0800202#define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
203#define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
204#define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
205#define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900206
Chao Yudfc08a12016-02-14 18:50:40 +0800207#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
208#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700209
Chao Yudfc08a12016-02-14 18:50:40 +0800210static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900211{
Chao Yudfc08a12016-02-14 18:50:40 +0800212 int before = nats_in_cursum(journal);
213 journal->n_nats = cpu_to_le16(before + i);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900214 return before;
215}
216
Chao Yudfc08a12016-02-14 18:50:40 +0800217static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900218{
Chao Yudfc08a12016-02-14 18:50:40 +0800219 int before = sits_in_cursum(journal);
220 journal->n_sits = cpu_to_le16(before + i);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900221 return before;
222}
223
Chao Yudfc08a12016-02-14 18:50:40 +0800224static inline bool __has_cursum_space(struct f2fs_journal *journal,
225 int size, int type)
Chao Yu184a5cd2014-09-04 18:13:01 +0800226{
227 if (type == NAT_JOURNAL)
Chao Yudfc08a12016-02-14 18:50:40 +0800228 return size <= MAX_NAT_JENTRIES(journal);
229 return size <= MAX_SIT_JENTRIES(journal);
Chao Yu184a5cd2014-09-04 18:13:01 +0800230}
231
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900232/*
Namjae Jeone9750822013-02-04 23:41:41 +0900233 * ioctl commands
234 */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700235#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
236#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
Chao Yud49f3e82015-01-23 20:36:04 +0800237#define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700238
239#define F2FS_IOCTL_MAGIC 0xf5
240#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
241#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
Jaegeuk Kim02a13352014-10-06 16:11:16 -0700242#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
Jaegeuk Kim1e843712014-12-09 06:08:59 -0800243#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
244#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
Chao Yuc1c1b582015-07-10 18:08:10 +0800245#define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6)
Chao Yu456b88e2015-10-05 22:24:19 +0800246#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
Chao Yud323d002015-10-27 09:53:45 +0800247#define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
Jaegeuk Kim4dd6f972016-07-08 15:16:47 -0700248#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
249 struct f2fs_move_range)
Namjae Jeone9750822013-02-04 23:41:41 +0900250
Jaegeuk Kim0b81d072015-05-15 16:26:10 -0700251#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
252#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
253#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
Jaegeuk Kimf424f662015-04-20 15:19:06 -0700254
Jaegeuk Kim1abff932015-01-08 19:15:53 -0800255/*
256 * should be same as XFS_IOC_GOINGDOWN.
257 * Flags for going down operation used by FS_IOC_GOINGDOWN
258 */
259#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
260#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
261#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
262#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
Jaegeuk Kimc912a822015-10-07 09:46:37 -0700263#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
Jaegeuk Kim1abff932015-01-08 19:15:53 -0800264
Namjae Jeone9750822013-02-04 23:41:41 +0900265#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
266/*
267 * ioctl commands in 32 bit emulation
268 */
Chao Yu04ef4b62015-11-10 18:44:20 +0800269#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
270#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
271#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
Namjae Jeone9750822013-02-04 23:41:41 +0900272#endif
273
Chao Yud323d002015-10-27 09:53:45 +0800274struct f2fs_defragment {
275 u64 start;
276 u64 len;
277};
278
Jaegeuk Kim4dd6f972016-07-08 15:16:47 -0700279struct f2fs_move_range {
280 u32 dst_fd; /* destination fd */
281 u64 pos_in; /* start position in src_fd */
282 u64 pos_out; /* start position in dst_fd */
283 u64 len; /* size to move */
284};
285
Namjae Jeone9750822013-02-04 23:41:41 +0900286/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900287 * For INODE and NODE manager
288 */
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700289/* for directory operations */
290struct f2fs_dentry_ptr {
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700291 struct inode *inode;
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700292 const void *bitmap;
293 struct f2fs_dir_entry *dentry;
294 __u8 (*filename)[F2FS_SLOT_LEN];
295 int max;
296};
297
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700298static inline void make_dentry_ptr(struct inode *inode,
299 struct f2fs_dentry_ptr *d, void *src, int type)
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700300{
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700301 d->inode = inode;
302
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700303 if (type == 1) {
304 struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src;
305 d->max = NR_DENTRY_IN_BLOCK;
306 d->bitmap = &t->dentry_bitmap;
307 d->dentry = t->dentry;
308 d->filename = t->filename;
309 } else {
310 struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src;
311 d->max = NR_INLINE_DENTRY;
312 d->bitmap = &t->dentry_bitmap;
313 d->dentry = t->dentry;
314 d->filename = t->filename;
315 }
316}
317
Jaegeuk Kimdbe6a5f2013-08-09 08:14:06 +0900318/*
319 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
320 * as its node offset to distinguish from index node blocks.
321 * But some bits are used to mark the node block.
322 */
323#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
324 >> OFFSET_BIT_SHIFT)
Jaegeuk Kim266e97a2013-02-26 13:10:46 +0900325enum {
326 ALLOC_NODE, /* allocate a new node page if needed */
327 LOOKUP_NODE, /* look up a node without readahead */
328 LOOKUP_NODE_RA, /*
329 * look up a node with readahead called
Chao Yu4f4124d2013-12-21 18:02:14 +0800330 * by get_data_block.
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900331 */
Jaegeuk Kim266e97a2013-02-26 13:10:46 +0900332};
333
Jaegeuk Kima6db67f2015-08-10 15:01:12 -0700334#define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900335
Chao Yu817202d92014-04-28 17:59:43 +0800336#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
337
Chao Yu13054c52015-02-05 17:52:58 +0800338/* vector size for gang look-up from extent cache that consists of radix tree */
339#define EXT_TREE_VEC_SIZE 64
340
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900341/* for in-memory extent cache entry */
Chao Yu13054c52015-02-05 17:52:58 +0800342#define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
343
344/* number of extent info in extent cache we try to shrink */
345#define EXTENT_CACHE_SHRINK_NUMBER 128
Jaegeuk Kimc11abd12013-11-19 10:41:54 +0900346
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900347struct extent_info {
Chao Yu13054c52015-02-05 17:52:58 +0800348 unsigned int fofs; /* start offset in a file */
349 u32 blk; /* start block address of the extent */
350 unsigned int len; /* length of the extent */
351};
352
353struct extent_node {
354 struct rb_node rb_node; /* rb node located in rb-tree */
355 struct list_head list; /* node in global extent list of sbi */
356 struct extent_info ei; /* extent info */
Hou Pengyang201ef5e2016-01-26 12:56:26 +0000357 struct extent_tree *et; /* extent tree pointer */
Chao Yu13054c52015-02-05 17:52:58 +0800358};
359
360struct extent_tree {
361 nid_t ino; /* inode number */
362 struct rb_root root; /* root of extent info rb-tree */
Chao Yu62c8af62015-02-05 18:01:39 +0800363 struct extent_node *cached_en; /* recently accessed extent node */
Jaegeuk Kim3e72f722015-06-19 17:53:26 -0700364 struct extent_info largest; /* largested extent info */
Jaegeuk Kim137d09f2015-12-31 15:02:16 -0800365 struct list_head list; /* to be used by sbi->zombie_list */
Chao Yu13054c52015-02-05 17:52:58 +0800366 rwlock_t lock; /* protect extent info rb-tree */
Chao Yu68e35382016-01-08 20:22:52 +0800367 atomic_t node_cnt; /* # of extent node in rb-tree*/
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900368};
369
370/*
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700371 * This structure is taken from ext4_map_blocks.
372 *
373 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
374 */
375#define F2FS_MAP_NEW (1 << BH_New)
376#define F2FS_MAP_MAPPED (1 << BH_Mapped)
Jaegeuk Kim7f63eb72015-05-08 19:30:32 -0700377#define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
378#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
379 F2FS_MAP_UNWRITTEN)
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700380
381struct f2fs_map_blocks {
382 block_t m_pblk;
383 block_t m_lblk;
384 unsigned int m_len;
385 unsigned int m_flags;
Chao Yuda859852016-01-26 15:42:58 +0800386 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700387};
388
Chao Yue2b4e2b2015-08-19 19:11:19 +0800389/* for flag in get_data_block */
390#define F2FS_GET_BLOCK_READ 0
391#define F2FS_GET_BLOCK_DIO 1
392#define F2FS_GET_BLOCK_FIEMAP 2
393#define F2FS_GET_BLOCK_BMAP 3
Jaegeuk Kimb439b102016-02-03 13:09:09 -0800394#define F2FS_GET_BLOCK_PRE_DIO 4
Jaegeuk Kim24b84912016-02-03 13:49:44 -0800395#define F2FS_GET_BLOCK_PRE_AIO 5
Chao Yue2b4e2b2015-08-19 19:11:19 +0800396
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700397/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900398 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
399 */
400#define FADVISE_COLD_BIT 0x01
Jaegeuk Kim354a3392013-06-14 08:52:35 +0900401#define FADVISE_LOST_PINO_BIT 0x02
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700402#define FADVISE_ENCRYPT_BIT 0x04
Jaegeuk Kime7d55452015-04-29 17:02:18 -0700403#define FADVISE_ENC_NAME_BIT 0x08
Jaegeuk Kim26787232016-11-28 15:33:38 -0800404#define FADVISE_KEEP_SIZE_BIT 0x10
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900405
Jaegeuk Kimb5492af2015-04-20 13:44:41 -0700406#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
407#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
408#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
409#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
410#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
411#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700412#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
413#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
414#define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
Jaegeuk Kime7d55452015-04-29 17:02:18 -0700415#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
416#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
Jaegeuk Kim26787232016-11-28 15:33:38 -0800417#define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
418#define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700419
Jaegeuk Kimab9fa662014-02-27 20:09:05 +0900420#define DEF_DIR_LEVEL 0
421
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900422struct f2fs_inode_info {
423 struct inode vfs_inode; /* serve a vfs inode */
424 unsigned long i_flags; /* keep an inode flags for ioctl */
425 unsigned char i_advise; /* use to give file attribute hints */
Jaegeuk Kim38431542014-02-27 18:20:00 +0900426 unsigned char i_dir_level; /* use for dentry level for large dir */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900427 unsigned int i_current_depth; /* use only in directory structure */
Jaegeuk Kim6666e6a2012-12-10 17:52:48 +0900428 unsigned int i_pino; /* parent inode number */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900429 umode_t i_acl_mode; /* keep file acl mode temporarily */
430
431 /* Use below internally in f2fs*/
432 unsigned long flags; /* use to pass per-file flags */
Jaegeuk Kimd928bfb2014-03-20 19:10:08 +0900433 struct rw_semaphore i_sem; /* protect fi info */
Jaegeuk Kim204706c2016-12-02 15:11:32 -0800434 atomic_t dirty_pages; /* # of dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900435 f2fs_hash_t chash; /* hash value of given file name */
436 unsigned int clevel; /* maximum level of given file name */
437 nid_t i_xattr_nid; /* node id that contains xattrs */
Jaegeuk Kime518ff82013-08-09 14:46:15 +0900438 unsigned long long xattr_ver; /* cp version of xattr modification */
Jaegeuk Kim26de9b12016-05-20 20:42:37 -0700439 loff_t last_disk_size; /* lastly written file size */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700440
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700441 struct list_head dirty_list; /* dirty list for dirs and files */
442 struct list_head gdirty_list; /* linked in global dirty list */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700443 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
444 struct mutex inmem_lock; /* lock for inmemory pages */
Jaegeuk Kim3e72f722015-06-19 17:53:26 -0700445 struct extent_tree *extent_tree; /* cached extent_tree entry */
Chao Yu82e0a5a2016-07-13 09:18:29 +0800446 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900447};
448
449static inline void get_extent_info(struct extent_info *ext,
Chao Yubd933d42016-05-04 23:19:47 +0800450 struct f2fs_extent *i_ext)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900451{
Chao Yubd933d42016-05-04 23:19:47 +0800452 ext->fofs = le32_to_cpu(i_ext->fofs);
453 ext->blk = le32_to_cpu(i_ext->blk);
454 ext->len = le32_to_cpu(i_ext->len);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900455}
456
457static inline void set_raw_extent(struct extent_info *ext,
458 struct f2fs_extent *i_ext)
459{
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900460 i_ext->fofs = cpu_to_le32(ext->fofs);
Chao Yu4d0b0bd2015-02-05 17:47:25 +0800461 i_ext->blk = cpu_to_le32(ext->blk);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900462 i_ext->len = cpu_to_le32(ext->len);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900463}
464
Chao Yu429511c2015-02-05 17:54:31 +0800465static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
466 u32 blk, unsigned int len)
467{
468 ei->fofs = fofs;
469 ei->blk = blk;
470 ei->len = len;
471}
472
Chao Yu0bdee482015-03-19 19:27:51 +0800473static inline bool __is_extent_same(struct extent_info *ei1,
474 struct extent_info *ei2)
475{
476 return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk &&
477 ei1->len == ei2->len);
478}
479
Chao Yu429511c2015-02-05 17:54:31 +0800480static inline bool __is_extent_mergeable(struct extent_info *back,
481 struct extent_info *front)
482{
483 return (back->fofs + back->len == front->fofs &&
484 back->blk + back->len == front->blk);
485}
486
487static inline bool __is_back_mergeable(struct extent_info *cur,
488 struct extent_info *back)
489{
490 return __is_extent_mergeable(back, cur);
491}
492
493static inline bool __is_front_mergeable(struct extent_info *cur,
494 struct extent_info *front)
495{
496 return __is_extent_mergeable(cur, front);
497}
498
Jaegeuk Kim7c457292016-10-14 11:51:23 -0700499extern void f2fs_mark_inode_dirty_sync(struct inode *, bool);
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700500static inline void __try_update_largest_extent(struct inode *inode,
501 struct extent_tree *et, struct extent_node *en)
Chao Yu4abd3f52015-09-22 21:07:47 +0800502{
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700503 if (en->ei.len > et->largest.len) {
Chao Yu4abd3f52015-09-22 21:07:47 +0800504 et->largest = en->ei;
Jaegeuk Kim7c457292016-10-14 11:51:23 -0700505 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700506 }
Chao Yu4abd3f52015-09-22 21:07:47 +0800507}
508
Chao Yub8559dc2016-10-12 19:28:29 +0800509enum nid_list {
510 FREE_NID_LIST,
511 ALLOC_NID_LIST,
512 MAX_NID_LIST,
513};
514
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900515struct f2fs_nm_info {
516 block_t nat_blkaddr; /* base disk address of NAT */
517 nid_t max_nid; /* maximum possible node ids */
Chao Yu04d47e62016-11-17 20:53:11 +0800518 nid_t available_nids; /* # of available node ids */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900519 nid_t next_scan_nid; /* the next nid to be scanned */
Jaegeuk Kimcdfc41c2014-03-19 13:31:37 +0900520 unsigned int ram_thresh; /* control the memory footprint */
Chao Yuea1a29a02015-10-12 17:08:48 +0800521 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
Chao Yu2304cb02016-01-18 18:32:58 +0800522 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900523
524 /* NAT cache management */
525 struct radix_tree_root nat_root;/* root of the nat entry cache */
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700526 struct radix_tree_root nat_set_root;/* root of the nat set cache */
Jaegeuk Kimb873b792016-08-04 11:38:25 -0700527 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900528 struct list_head nat_entries; /* cached nat entry list (clean) */
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700529 unsigned int nat_cnt; /* the # of cached nat entries */
Chao Yuaec71382014-06-24 09:18:20 +0800530 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900531
532 /* free node ids management */
Jaegeuk Kim8a7ed662014-02-21 14:29:35 +0900533 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
Chao Yub8559dc2016-10-12 19:28:29 +0800534 struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */
535 unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */
536 spinlock_t nid_list_lock; /* protect nid lists ops */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900537 struct mutex build_lock; /* lock for build free nids */
538
539 /* for checkpoint */
540 char *nat_bitmap; /* NAT bitmap pointer */
541 int bitmap_size; /* bitmap size */
542};
543
544/*
545 * this structure is used as one of function parameters.
546 * all the information are dedicated to a given direct node block determined
547 * by the data offset in a file.
548 */
549struct dnode_of_data {
550 struct inode *inode; /* vfs inode pointer */
551 struct page *inode_page; /* its inode page, NULL is possible */
552 struct page *node_page; /* cached direct node page */
553 nid_t nid; /* node id of the direct node block */
554 unsigned int ofs_in_node; /* data offset in the node page */
555 bool inode_page_locked; /* inode page is locked or not */
Jaegeuk Kim93bae092015-12-22 12:59:54 -0800556 bool node_changed; /* is node block changed */
Chao Yu3cf45742016-01-26 15:40:44 +0800557 char cur_level; /* level of hole node page */
558 char max_level; /* level of current page located */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900559 block_t data_blkaddr; /* block address of the node block */
560};
561
562static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
563 struct page *ipage, struct page *npage, nid_t nid)
564{
Jaegeuk Kimd66d1f72013-01-03 08:57:21 +0900565 memset(dn, 0, sizeof(*dn));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900566 dn->inode = inode;
567 dn->inode_page = ipage;
568 dn->node_page = npage;
569 dn->nid = nid;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900570}
571
572/*
573 * For SIT manager
574 *
575 * By default, there are 6 active log areas across the whole main area.
576 * When considering hot and cold data separation to reduce cleaning overhead,
577 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
578 * respectively.
579 * In the current design, you should not change the numbers intentionally.
580 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
581 * logs individually according to the underlying devices. (default: 6)
582 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
583 * data and 8 for node logs.
584 */
585#define NR_CURSEG_DATA_TYPE (3)
586#define NR_CURSEG_NODE_TYPE (3)
587#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
588
589enum {
590 CURSEG_HOT_DATA = 0, /* directory entry blocks */
591 CURSEG_WARM_DATA, /* data blocks */
592 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
593 CURSEG_HOT_NODE, /* direct node blocks of directory files */
594 CURSEG_WARM_NODE, /* direct node blocks of normal files */
595 CURSEG_COLD_NODE, /* indirect node blocks */
Jaegeuk Kim38aa0882015-01-05 16:02:20 -0800596 NO_CHECK_TYPE,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900597};
598
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900599struct flush_cmd {
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900600 struct completion wait;
Gu Zheng721bd4d2014-09-05 18:31:00 +0800601 struct llist_node llnode;
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900602 int ret;
603};
604
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800605struct flush_cmd_control {
606 struct task_struct *f2fs_issue_flush; /* flush thread */
607 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
Jaegeuk Kim0a87f662016-05-23 12:04:56 -0700608 atomic_t submit_flush; /* # of issued flushes */
Gu Zheng721bd4d2014-09-05 18:31:00 +0800609 struct llist_head issue_list; /* list for command issue */
610 struct llist_node *dispatch_list; /* list for command dispatch */
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800611};
612
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900613struct f2fs_sm_info {
614 struct sit_info *sit_info; /* whole segment information */
615 struct free_segmap_info *free_info; /* free segment information */
616 struct dirty_seglist_info *dirty_info; /* dirty segment information */
617 struct curseg_info *curseg_array; /* active segment information */
618
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900619 block_t seg0_blkaddr; /* block address of 0'th segment */
620 block_t main_blkaddr; /* start block address of main area */
621 block_t ssa_blkaddr; /* start block address of SSA area */
622
623 unsigned int segment_count; /* total # of segments */
624 unsigned int main_segments; /* # of segments in main area */
625 unsigned int reserved_segments; /* # of reserved segments */
626 unsigned int ovp_segments; /* # of overprovision segments */
Jaegeuk Kim81eb8d62013-10-24 13:31:34 +0900627
628 /* a threshold to reclaim prefree segments */
629 unsigned int rec_prefree_segments;
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900630
631 /* for small discard management */
632 struct list_head discard_list; /* 4KB discard list */
Chao Yu275b66b2016-08-29 23:58:34 +0800633 struct list_head wait_list; /* linked with issued discard bio */
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900634 int nr_discards; /* # of discards in the list */
635 int max_discards; /* max. discards to be issued */
Jaegeuk Kim216fbd62013-11-07 13:13:42 +0900636
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800637 /* for batched trimming */
638 unsigned int trim_sections; /* # of sections to trim */
639
Chao Yu184a5cd2014-09-04 18:13:01 +0800640 struct list_head sit_entry_set; /* sit entry set list */
641
Jaegeuk Kim216fbd62013-11-07 13:13:42 +0900642 unsigned int ipu_policy; /* in-place-update policy */
643 unsigned int min_ipu_util; /* in-place-update threshold */
Jaegeuk Kimc1ce1b02014-09-10 16:53:02 -0700644 unsigned int min_fsync_blocks; /* threshold for fsync */
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900645
646 /* for flush command control */
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800647 struct flush_cmd_control *cmd_control_info;
648
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900649};
650
651/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900652 * For superblock
653 */
654/*
655 * COUNT_TYPE for monitoring
656 *
657 * f2fs monitors the number of several block types such as on-writeback,
658 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
659 */
Chao Yu36951b32016-11-16 10:41:20 +0800660#define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900661enum count_type {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900662 F2FS_DIRTY_DENTS,
Chao Yuc227f912015-12-16 13:09:20 +0800663 F2FS_DIRTY_DATA,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900664 F2FS_DIRTY_NODES,
665 F2FS_DIRTY_META,
Jaegeuk Kim8dcf2ff72014-12-05 17:18:15 -0800666 F2FS_INMEM_PAGES,
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700667 F2FS_DIRTY_IMETA,
Chao Yu36951b32016-11-16 10:41:20 +0800668 F2FS_WB_CP_DATA,
669 F2FS_WB_DATA,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900670 NR_COUNT_TYPE,
671};
672
673/*
arter97e1c42042014-08-06 23:22:50 +0900674 * The below are the page types of bios used in submit_bio().
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900675 * The available types are:
676 * DATA User data pages. It operates as async mode.
677 * NODE Node pages. It operates as async mode.
678 * META FS metadata pages such as SIT, NAT, CP.
679 * NR_PAGE_TYPE The number of page types.
680 * META_FLUSH Make sure the previous pages are written
681 * with waiting the bio's completion
682 * ... Only can be used with META.
683 */
Jaegeuk Kim7d5e5102013-11-18 17:13:35 +0900684#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900685enum page_type {
686 DATA,
687 NODE,
688 META,
689 NR_PAGE_TYPE,
690 META_FLUSH,
Jaegeuk Kim8ce67cb2015-03-17 17:58:08 -0700691 INMEM, /* the below types are used by tracepoints only. */
692 INMEM_DROP,
Chao Yu28bc1062016-02-06 14:40:34 +0800693 INMEM_REVOKE,
Jaegeuk Kim8ce67cb2015-03-17 17:58:08 -0700694 IPU,
695 OPU,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900696};
697
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900698struct f2fs_io_info {
Jaegeuk Kim05ca3632015-04-23 14:38:15 -0700699 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
Gu Zheng7e8f2302013-12-20 18:17:49 +0800700 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
Mike Christie04d328d2016-06-05 14:31:55 -0500701 int op; /* contains REQ_OP_ */
Christoph Hellwigef295ec2016-10-28 08:48:16 -0600702 int op_flags; /* req_flag_bits */
Chao Yu7a9d7542016-02-22 18:36:38 +0800703 block_t new_blkaddr; /* new block address to be written */
Chao Yu28bc1062016-02-06 14:40:34 +0800704 block_t old_blkaddr; /* old block address before Cow */
Jaegeuk Kim05ca3632015-04-23 14:38:15 -0700705 struct page *page; /* page to be written */
Jaegeuk Kim4375a332015-04-23 12:04:33 -0700706 struct page *encrypted_page; /* encrypted page */
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900707};
708
Mike Christie04d328d2016-06-05 14:31:55 -0500709#define is_read_io(rw) (rw == READ)
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900710struct f2fs_bio_info {
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900711 struct f2fs_sb_info *sbi; /* f2fs superblock */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900712 struct bio *bio; /* bios to merge */
713 sector_t last_block_in_bio; /* last block number */
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900714 struct f2fs_io_info fio; /* store buffered io info. */
Chao Yudf0f8dc2014-03-22 14:57:23 +0800715 struct rw_semaphore io_rwsem; /* blocking op for bio */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900716};
717
Jaegeuk Kim3c62be12016-10-06 19:02:05 -0700718#define FDEV(i) (sbi->devs[i])
719#define RDEV(i) (raw_super->devs[i])
720struct f2fs_dev_info {
721 struct block_device *bdev;
722 char path[MAX_PATH_LEN];
723 unsigned int total_segments;
724 block_t start_blk;
725 block_t end_blk;
726#ifdef CONFIG_BLK_DEV_ZONED
727 unsigned int nr_blkz; /* Total number of zones */
728 u8 *blkz_type; /* Array of zones type */
729#endif
730};
731
Chao Yuc227f912015-12-16 13:09:20 +0800732enum inode_type {
733 DIR_INODE, /* for dirty dir inode */
734 FILE_INODE, /* for dirty regular/symlink inode */
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700735 DIRTY_META, /* for all dirtied inode metadata */
Chao Yuc227f912015-12-16 13:09:20 +0800736 NR_INODE_TYPE,
737};
738
Chao Yu67298802014-11-18 11:18:36 +0800739/* for inner inode cache management */
740struct inode_management {
741 struct radix_tree_root ino_root; /* ino entry array */
742 spinlock_t ino_lock; /* for ino entry lock */
743 struct list_head ino_list; /* inode list head */
744 unsigned long ino_num; /* number of entries */
745};
746
Chao Yucaf00472015-01-28 17:48:42 +0800747/* For s_flag in struct f2fs_sb_info */
748enum {
749 SBI_IS_DIRTY, /* dirty flag for checkpoint */
750 SBI_IS_CLOSE, /* specify unmounting */
751 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
752 SBI_POR_DOING, /* recovery is doing or not */
Jaegeuk Kimdf728b02016-03-23 17:05:27 -0700753 SBI_NEED_SB_WRITE, /* need to recover superblock */
Jaegeuk Kimbbf156f2016-08-29 18:23:45 -0700754 SBI_NEED_CP, /* need to checkpoint */
Chao Yucaf00472015-01-28 17:48:42 +0800755};
756
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800757enum {
758 CP_TIME,
Jaegeuk Kimd0239e12016-01-08 16:57:48 -0800759 REQ_TIME,
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800760 MAX_TIME,
761};
762
Jaegeuk Kimb5a7aef2016-05-04 22:05:01 -0700763#ifdef CONFIG_F2FS_FS_ENCRYPTION
764#define F2FS_KEY_DESC_PREFIX "f2fs:"
765#define F2FS_KEY_DESC_PREFIX_SIZE 5
766#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900767struct f2fs_sb_info {
768 struct super_block *sb; /* pointer to VFS super block */
Jaegeuk Kim5e176d52013-06-28 12:47:01 +0900769 struct proc_dir_entry *s_proc; /* proc entry */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900770 struct f2fs_super_block *raw_super; /* raw super block pointer */
Chao Yue8240f62015-12-15 17:19:26 +0800771 int valid_super_block; /* valid super block no */
Chao Yufadb2fb2016-09-20 10:29:47 +0800772 unsigned long s_flag; /* flags for sbi */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900773
Jaegeuk Kimb5a7aef2016-05-04 22:05:01 -0700774#ifdef CONFIG_F2FS_FS_ENCRYPTION
775 u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE];
776 u8 key_prefix_size;
777#endif
Damien Le Moal178053e2016-10-28 17:45:05 +0900778
779#ifdef CONFIG_BLK_DEV_ZONED
Damien Le Moal178053e2016-10-28 17:45:05 +0900780 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
781 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
Damien Le Moal178053e2016-10-28 17:45:05 +0900782#endif
783
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900784 /* for node-related operations */
785 struct f2fs_nm_info *nm_info; /* node manager */
786 struct inode *node_inode; /* cache node blocks */
787
788 /* for segment-related operations */
789 struct f2fs_sm_info *sm_info; /* segment manager */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900790
791 /* for bio operations */
Chao Yu924b7202013-11-20 14:46:39 +0800792 struct f2fs_bio_info read_io; /* for read bios */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900793 struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
Jaegeuk Kim7dfeaa32016-06-04 14:21:28 -0700794 struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */
Jaegeuk Kim0a595eb2016-12-14 10:12:56 -0800795 int write_io_size_bits; /* Write IO size bits */
796 mempool_t *write_io_dummy; /* Dummy pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900797
798 /* for checkpoint */
799 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
Jaegeuk Kim8508e442016-11-24 12:45:15 -0800800 int cur_cp_pack; /* remain current cp pack */
Chao Yuaaec2b12016-09-20 11:04:18 +0800801 spinlock_t cp_lock; /* for flag in ckpt */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900802 struct inode *meta_inode; /* cache meta blocks */
Jaegeuk Kim39936832012-11-22 16:21:29 +0900803 struct mutex cp_mutex; /* checkpoint procedure lock */
Jaegeuk Kimb873b792016-08-04 11:38:25 -0700804 struct rw_semaphore cp_rwsem; /* blocking FS operations */
Chao Yub3582c62014-07-03 18:58:39 +0800805 struct rw_semaphore node_write; /* locking node writes */
Changman Leefb51b5e2013-11-07 12:48:25 +0900806 wait_queue_head_t cp_wait;
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800807 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
808 long interval_time[MAX_TIME]; /* to store thresholds */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900809
Chao Yu67298802014-11-18 11:18:36 +0800810 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700811
812 /* for orphan inode, use 0'th array */
Gu Zheng0d47c1a2013-12-26 18:24:19 +0800813 unsigned int max_orphans; /* max orphan inodes */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900814
Chao Yuc227f912015-12-16 13:09:20 +0800815 /* for inode management */
816 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
817 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900818
Chao Yu13054c52015-02-05 17:52:58 +0800819 /* for extent tree cache */
820 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
821 struct rw_semaphore extent_tree_lock; /* locking extent radix tree */
822 struct list_head extent_list; /* lru list for shrinker */
823 spinlock_t extent_lock; /* locking extent lru list */
Jaegeuk Kim7441cce2015-12-21 19:20:15 -0800824 atomic_t total_ext_tree; /* extent tree count */
Jaegeuk Kim137d09f2015-12-31 15:02:16 -0800825 struct list_head zombie_list; /* extent zombie tree list */
Jaegeuk Kim74fd8d92015-12-21 19:25:50 -0800826 atomic_t total_zombie_tree; /* extent zombie tree count */
Chao Yu13054c52015-02-05 17:52:58 +0800827 atomic_t total_ext_node; /* extent info count */
828
arter97e1c42042014-08-06 23:22:50 +0900829 /* basic filesystem units */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900830 unsigned int log_sectors_per_block; /* log2 sectors per block */
831 unsigned int log_blocksize; /* log2 block size */
832 unsigned int blocksize; /* block size */
833 unsigned int root_ino_num; /* root inode number*/
834 unsigned int node_ino_num; /* node inode number*/
835 unsigned int meta_ino_num; /* meta inode number*/
836 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
837 unsigned int blocks_per_seg; /* blocks per segment */
838 unsigned int segs_per_sec; /* segments per section */
839 unsigned int secs_per_zone; /* sections per zone */
840 unsigned int total_sections; /* total section count */
841 unsigned int total_node_count; /* total node block count */
842 unsigned int total_valid_node_count; /* valid node block count */
Chao Yue0afc4d2015-12-31 14:35:37 +0800843 loff_t max_file_blocks; /* max block index of file */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900844 int active_logs; /* # of active logs */
Jaegeuk Kimab9fa662014-02-27 20:09:05 +0900845 int dir_level; /* directory level */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900846
847 block_t user_block_count; /* # of user blocks */
848 block_t total_valid_block_count; /* # of valid blocks */
Jaegeuk Kima66cdd92015-04-30 22:37:50 -0700849 block_t discard_blks; /* discard command candidats */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900850 block_t last_valid_block_count; /* for recovery */
851 u32 s_next_generation; /* for NFS support */
Jaegeuk Kim523be8a2016-05-13 12:36:58 -0700852
853 /* # of pages, see count_type */
Jaegeuk Kim35782b22016-10-20 19:09:57 -0700854 atomic_t nr_pages[NR_COUNT_TYPE];
Jaegeuk Kim41382ec2016-05-16 11:06:50 -0700855 /* # of allocated blocks */
856 struct percpu_counter alloc_valid_block_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900857
Jaegeuk Kim513c5f32016-05-16 11:42:32 -0700858 /* valid inode count */
859 struct percpu_counter total_valid_inode_count;
860
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900861 struct f2fs_mount_info mount_opt; /* mount options */
862
863 /* for cleaning operations */
864 struct mutex gc_mutex; /* mutex for GC */
865 struct f2fs_gc_kthread *gc_thread; /* GC thread */
Jaegeuk Kim5ec4e492013-03-31 13:26:03 +0900866 unsigned int cur_victim_sec; /* current victim section num */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900867
Jaegeuk Kimb1c57c12014-01-08 13:45:08 +0900868 /* maximum # of trials to find a victim segment for SSR and GC */
869 unsigned int max_victim_search;
870
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900871 /*
872 * for stat information.
873 * one is for the LFS mode, and the other is for the SSR mode.
874 */
Namjae Jeon35b09d82013-05-23 22:57:53 +0900875#ifdef CONFIG_F2FS_STAT_FS
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900876 struct f2fs_stat_info *stat_info; /* FS status information */
877 unsigned int segment_count[2]; /* # of allocated segments */
878 unsigned int block_count[2]; /* # of allocated blocks */
Changman Leeb9a2c252014-12-24 02:16:54 +0900879 atomic_t inplace_count; /* # of inplace update */
Chao Yu5b7ee372015-09-30 17:38:48 +0800880 atomic64_t total_hit_ext; /* # of lookup extent cache */
881 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
882 atomic64_t read_hit_largest; /* # of hit largest extent node */
883 atomic64_t read_hit_cached; /* # of hit cached extent node */
Chao Yud5e8f6c2015-07-15 17:28:53 +0800884 atomic_t inline_xattr; /* # of inline_xattr inodes */
Chao Yu03e14d52014-12-08 19:08:20 +0800885 atomic_t inline_inode; /* # of inline_data inodes */
886 atomic_t inline_dir; /* # of inline_dentry inodes */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900887 int bg_gc; /* background gc calls */
Chao Yu33fbd512015-12-17 17:14:44 +0800888 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
Namjae Jeon35b09d82013-05-23 22:57:53 +0900889#endif
890 unsigned int last_victim[2]; /* last victim segment # */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900891 spinlock_t stat_lock; /* lock for stat operations */
Namjae Jeonb59d0ba2013-08-04 23:09:40 +0900892
893 /* For sysfs suppport */
894 struct kobject s_kobj;
895 struct completion s_kobj_unregister;
Jaegeuk Kim2658e502015-06-19 12:01:21 -0700896
897 /* For shrinker support */
898 struct list_head s_list;
Jaegeuk Kim3c62be12016-10-06 19:02:05 -0700899 int s_ndevs; /* number of devices */
900 struct f2fs_dev_info *devs; /* for device list */
Jaegeuk Kim2658e502015-06-19 12:01:21 -0700901 struct mutex umount_mutex;
902 unsigned int shrinker_run_no;
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +0800903
904 /* For write statistics */
905 u64 sectors_written_start;
906 u64 kbytes_written;
Keith Mok43b65732016-03-02 12:04:24 -0800907
908 /* Reference to checksum algorithm driver via cryptoapi */
909 struct crypto_shash *s_chksum_driver;
Chao Yu1ecc0c52016-09-23 21:30:09 +0800910
911 /* For fault injection */
912#ifdef CONFIG_F2FS_FAULT_INJECTION
913 struct f2fs_fault_info fault_info;
914#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900915};
916
Chao Yu1ecc0c52016-09-23 21:30:09 +0800917#ifdef CONFIG_F2FS_FAULT_INJECTION
918static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
919{
920 struct f2fs_fault_info *ffi = &sbi->fault_info;
921
922 if (!ffi->inject_rate)
923 return false;
924
925 if (!IS_FAULT_SET(ffi, type))
926 return false;
927
928 atomic_inc(&ffi->inject_ops);
929 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
930 atomic_set(&ffi->inject_ops, 0);
931 printk("%sF2FS-fs : inject %s in %pF\n",
932 KERN_INFO,
933 fault_name[type],
934 __builtin_return_address(0));
935 return true;
936 }
937 return false;
938}
939#endif
940
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +0800941/* For write statistics. Suppose sector size is 512 bytes,
942 * and the return value is in kbytes. s is of struct f2fs_sb_info.
943 */
944#define BD_PART_WRITTEN(s) \
945(((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
946 s->sectors_written_start) >> 1)
947
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800948static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
949{
950 sbi->last_time[type] = jiffies;
951}
952
953static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
954{
955 struct timespec ts = {sbi->interval_time[type], 0};
956 unsigned long interval = timespec_to_jiffies(&ts);
957
958 return time_after(jiffies, sbi->last_time[type] + interval);
959}
960
Jaegeuk Kimd0239e12016-01-08 16:57:48 -0800961static inline bool is_idle(struct f2fs_sb_info *sbi)
962{
963 struct block_device *bdev = sbi->sb->s_bdev;
964 struct request_queue *q = bdev_get_queue(bdev);
965 struct request_list *rl = &q->root_rl;
966
967 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
968 return 0;
969
970 return f2fs_time_over(sbi, REQ_TIME);
971}
972
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900973/*
974 * Inline functions
975 */
Keith Mok43b65732016-03-02 12:04:24 -0800976static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
977 unsigned int length)
978{
979 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
980 u32 *ctx = (u32 *)shash_desc_ctx(shash);
981 int err;
982
983 shash->tfm = sbi->s_chksum_driver;
984 shash->flags = 0;
985 *ctx = F2FS_SUPER_MAGIC;
986
987 err = crypto_shash_update(shash, address, length);
988 BUG_ON(err);
989
990 return *ctx;
991}
992
993static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
994 void *buf, size_t buf_size)
995{
996 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
997}
998
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900999static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1000{
1001 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1002}
1003
1004static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1005{
1006 return sb->s_fs_info;
1007}
1008
Jaegeuk Kim40813632014-09-02 15:31:18 -07001009static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1010{
1011 return F2FS_SB(inode->i_sb);
1012}
1013
1014static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1015{
1016 return F2FS_I_SB(mapping->host);
1017}
1018
1019static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1020{
1021 return F2FS_M_SB(page->mapping);
1022}
1023
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001024static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1025{
1026 return (struct f2fs_super_block *)(sbi->raw_super);
1027}
1028
1029static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1030{
1031 return (struct f2fs_checkpoint *)(sbi->ckpt);
1032}
1033
Gu Zheng45590712013-07-15 17:57:38 +08001034static inline struct f2fs_node *F2FS_NODE(struct page *page)
1035{
1036 return (struct f2fs_node *)page_address(page);
1037}
1038
Jaegeuk Kim58bfaf42013-12-26 16:30:41 +09001039static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1040{
1041 return &((struct f2fs_node *)page_address(page))->i;
1042}
1043
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001044static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1045{
1046 return (struct f2fs_nm_info *)(sbi->nm_info);
1047}
1048
1049static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1050{
1051 return (struct f2fs_sm_info *)(sbi->sm_info);
1052}
1053
1054static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1055{
1056 return (struct sit_info *)(SM_I(sbi)->sit_info);
1057}
1058
1059static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1060{
1061 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1062}
1063
1064static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1065{
1066 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1067}
1068
Gu Zheng9df27d92014-01-20 18:37:04 +08001069static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1070{
1071 return sbi->meta_inode->i_mapping;
1072}
1073
Jaegeuk Kim4ef51a82014-01-21 18:51:16 +09001074static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1075{
1076 return sbi->node_inode->i_mapping;
1077}
1078
Chao Yucaf00472015-01-28 17:48:42 +08001079static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001080{
Chao Yufadb2fb2016-09-20 10:29:47 +08001081 return test_bit(type, &sbi->s_flag);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001082}
1083
Chao Yucaf00472015-01-28 17:48:42 +08001084static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001085{
Chao Yufadb2fb2016-09-20 10:29:47 +08001086 set_bit(type, &sbi->s_flag);
Chao Yucaf00472015-01-28 17:48:42 +08001087}
1088
1089static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1090{
Chao Yufadb2fb2016-09-20 10:29:47 +08001091 clear_bit(type, &sbi->s_flag);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001092}
1093
Jaegeuk Kimd71b5562013-08-09 15:03:21 +09001094static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1095{
1096 return le64_to_cpu(cp->checkpoint_ver);
1097}
1098
Chao Yuaaec2b12016-09-20 11:04:18 +08001099static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001100{
1101 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Chao Yuaaec2b12016-09-20 11:04:18 +08001102
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001103 return ckpt_flags & f;
1104}
1105
Chao Yuaaec2b12016-09-20 11:04:18 +08001106static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001107{
Chao Yuaaec2b12016-09-20 11:04:18 +08001108 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1109}
1110
1111static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1112{
1113 unsigned int ckpt_flags;
1114
1115 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001116 ckpt_flags |= f;
1117 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1118}
1119
Chao Yuaaec2b12016-09-20 11:04:18 +08001120static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001121{
Chao Yuaaec2b12016-09-20 11:04:18 +08001122 spin_lock(&sbi->cp_lock);
1123 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1124 spin_unlock(&sbi->cp_lock);
1125}
1126
1127static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1128{
1129 unsigned int ckpt_flags;
1130
1131 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001132 ckpt_flags &= (~f);
1133 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1134}
1135
Chao Yuaaec2b12016-09-20 11:04:18 +08001136static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1137{
1138 spin_lock(&sbi->cp_lock);
1139 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1140 spin_unlock(&sbi->cp_lock);
1141}
1142
Gu Zhenge4795562013-09-27 18:08:30 +08001143static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001144{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001145 down_read(&sbi->cp_rwsem);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001146}
1147
Gu Zhenge4795562013-09-27 18:08:30 +08001148static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001149{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001150 up_read(&sbi->cp_rwsem);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001151}
1152
Gu Zhenge4795562013-09-27 18:08:30 +08001153static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
Jaegeuk Kim39936832012-11-22 16:21:29 +09001154{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001155 down_write(&sbi->cp_rwsem);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001156}
1157
Gu Zhenge4795562013-09-27 18:08:30 +08001158static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
Jaegeuk Kim39936832012-11-22 16:21:29 +09001159{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001160 up_write(&sbi->cp_rwsem);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001161}
1162
Jaegeuk Kim119ee912015-01-29 11:45:33 -08001163static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1164{
1165 int reason = CP_SYNC;
1166
1167 if (test_opt(sbi, FASTBOOT))
1168 reason = CP_FASTBOOT;
1169 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1170 reason = CP_UMOUNT;
1171 return reason;
1172}
1173
1174static inline bool __remain_node_summaries(int reason)
1175{
1176 return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
1177}
1178
1179static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1180{
Chao Yuaaec2b12016-09-20 11:04:18 +08001181 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1182 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
Jaegeuk Kim119ee912015-01-29 11:45:33 -08001183}
1184
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001185/*
1186 * Check whether the given nid is within node id range.
1187 */
Namjae Jeon064e0822013-03-17 17:27:20 +09001188static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001189{
Chao Yud6b7d4b2014-06-12 13:23:41 +08001190 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1191 return -EINVAL;
Chao Yucfb271d2013-12-05 17:15:22 +08001192 if (unlikely(nid >= NM_I(sbi)->max_nid))
Namjae Jeon064e0822013-03-17 17:27:20 +09001193 return -EINVAL;
1194 return 0;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001195}
1196
1197#define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1198
1199/*
1200 * Check whether the inode has blocks or not
1201 */
1202static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1203{
1204 if (F2FS_I(inode)->i_xattr_nid)
Chris Fries6c311ec2014-01-17 14:44:39 -06001205 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001206 else
Chris Fries6c311ec2014-01-17 14:44:39 -06001207 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001208}
1209
Chao Yu4bc8e9b2014-03-17 16:35:06 +08001210static inline bool f2fs_has_xattr_block(unsigned int ofs)
1211{
1212 return ofs == XATTR_NODE_OFFSET;
1213}
1214
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001215static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001216static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
Chao Yu46008c62016-05-09 19:56:30 +08001217 struct inode *inode, blkcnt_t *count)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001218{
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001219 blkcnt_t diff;
1220
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001221#ifdef CONFIG_F2FS_FAULT_INJECTION
Chao Yu1ecc0c52016-09-23 21:30:09 +08001222 if (time_to_inject(sbi, FAULT_BLOCK))
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001223 return false;
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001224#endif
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001225 /*
1226 * let's increase this in prior to actual block count change in order
1227 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1228 */
1229 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
Chao Yucfb271d2013-12-05 17:15:22 +08001230
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001231 spin_lock(&sbi->stat_lock);
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001232 sbi->total_valid_block_count += (block_t)(*count);
1233 if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) {
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001234 diff = sbi->total_valid_block_count - sbi->user_block_count;
1235 *count -= diff;
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001236 sbi->total_valid_block_count = sbi->user_block_count;
Chao Yu46008c62016-05-09 19:56:30 +08001237 if (!*count) {
1238 spin_unlock(&sbi->stat_lock);
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001239 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
Chao Yu46008c62016-05-09 19:56:30 +08001240 return false;
1241 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001242 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001243 spin_unlock(&sbi->stat_lock);
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07001244
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001245 f2fs_i_blocks_write(inode, *count, true);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001246 return true;
1247}
1248
Gu Zhengda19b0d2013-11-19 18:03:27 +08001249static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001250 struct inode *inode,
1251 blkcnt_t count)
1252{
1253 spin_lock(&sbi->stat_lock);
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001254 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1255 f2fs_bug_on(sbi, inode->i_blocks < count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001256 sbi->total_valid_block_count -= (block_t)count;
1257 spin_unlock(&sbi->stat_lock);
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001258 f2fs_i_blocks_write(inode, count, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001259}
1260
1261static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1262{
Jaegeuk Kim35782b22016-10-20 19:09:57 -07001263 atomic_inc(&sbi->nr_pages[count_type]);
Chao Yu7c4abcb2016-08-18 17:46:14 +08001264
Chao Yu36951b32016-11-16 10:41:20 +08001265 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1266 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
Chao Yu7c4abcb2016-08-18 17:46:14 +08001267 return;
1268
Chao Yucaf00472015-01-28 17:48:42 +08001269 set_sbi_flag(sbi, SBI_IS_DIRTY);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001270}
1271
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07001272static inline void inode_inc_dirty_pages(struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001273{
Jaegeuk Kim204706c2016-12-02 15:11:32 -08001274 atomic_inc(&F2FS_I(inode)->dirty_pages);
Chao Yuc227f912015-12-16 13:09:20 +08001275 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1276 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001277}
1278
1279static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1280{
Jaegeuk Kim35782b22016-10-20 19:09:57 -07001281 atomic_dec(&sbi->nr_pages[count_type]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001282}
1283
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07001284static inline void inode_dec_dirty_pages(struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001285{
Chao Yu5ac9f362015-06-29 18:14:10 +08001286 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1287 !S_ISLNK(inode->i_mode))
Jaegeuk Kim1fe54f92014-02-07 10:00:06 +09001288 return;
1289
Jaegeuk Kim204706c2016-12-02 15:11:32 -08001290 atomic_dec(&F2FS_I(inode)->dirty_pages);
Chao Yuc227f912015-12-16 13:09:20 +08001291 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1292 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001293}
1294
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001295static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001296{
Jaegeuk Kim35782b22016-10-20 19:09:57 -07001297 return atomic_read(&sbi->nr_pages[count_type]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001298}
1299
Jaegeuk Kim204706c2016-12-02 15:11:32 -08001300static inline int get_dirty_pages(struct inode *inode)
Jaegeuk Kimf8b2c1f2014-03-18 12:33:06 +09001301{
Jaegeuk Kim204706c2016-12-02 15:11:32 -08001302 return atomic_read(&F2FS_I(inode)->dirty_pages);
Jaegeuk Kimf8b2c1f2014-03-18 12:33:06 +09001303}
1304
Namjae Jeon5ac206c2013-02-02 23:52:59 +09001305static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1306{
Chao Yu3519e3f2015-12-01 11:56:52 +08001307 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001308 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1309 sbi->log_blocks_per_seg;
1310
1311 return segs / sbi->segs_per_sec;
Namjae Jeon5ac206c2013-02-02 23:52:59 +09001312}
1313
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001314static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1315{
Jaegeuk Kim8b8343f2014-02-24 13:00:13 +09001316 return sbi->total_valid_block_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001317}
1318
Yunlei Hef83a2582016-08-18 21:01:18 +08001319static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1320{
1321 return sbi->discard_blks;
1322}
1323
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001324static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1325{
1326 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1327
1328 /* return NAT or SIT bitmap */
1329 if (flag == NAT_BITMAP)
1330 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1331 else if (flag == SIT_BITMAP)
1332 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1333
1334 return 0;
1335}
1336
Wanpeng Li55141482015-02-26 07:57:20 +08001337static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1338{
1339 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1340}
1341
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001342static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1343{
1344 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
Changman Lee1dbe4152014-05-12 12:27:43 +09001345 int offset;
1346
Wanpeng Li55141482015-02-26 07:57:20 +08001347 if (__cp_payload(sbi) > 0) {
Changman Lee1dbe4152014-05-12 12:27:43 +09001348 if (flag == NAT_BITMAP)
1349 return &ckpt->sit_nat_version_bitmap;
1350 else
Jaegeuk Kim65b85cc2014-07-30 17:25:54 -07001351 return (unsigned char *)ckpt + F2FS_BLKSIZE;
Changman Lee1dbe4152014-05-12 12:27:43 +09001352 } else {
1353 offset = (flag == NAT_BITMAP) ?
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001354 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
Changman Lee1dbe4152014-05-12 12:27:43 +09001355 return &ckpt->sit_nat_version_bitmap + offset;
1356 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001357}
1358
1359static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1360{
Jaegeuk Kim8508e442016-11-24 12:45:15 -08001361 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001362
Jaegeuk Kim8508e442016-11-24 12:45:15 -08001363 if (sbi->cur_cp_pack == 2)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001364 start_addr += sbi->blocks_per_seg;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001365 return start_addr;
1366}
1367
Jaegeuk Kim8508e442016-11-24 12:45:15 -08001368static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1369{
1370 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1371
1372 if (sbi->cur_cp_pack == 1)
1373 start_addr += sbi->blocks_per_seg;
1374 return start_addr;
1375}
1376
1377static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1378{
1379 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1380}
1381
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001382static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1383{
1384 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1385}
1386
1387static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi,
Gu Zhengef86d702013-11-19 18:03:38 +08001388 struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001389{
1390 block_t valid_block_count;
1391 unsigned int valid_node_count;
1392
1393 spin_lock(&sbi->stat_lock);
1394
Gu Zhengef86d702013-11-19 18:03:38 +08001395 valid_block_count = sbi->total_valid_block_count + 1;
Chao Yucfb271d2013-12-05 17:15:22 +08001396 if (unlikely(valid_block_count > sbi->user_block_count)) {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001397 spin_unlock(&sbi->stat_lock);
1398 return false;
1399 }
1400
Gu Zhengef86d702013-11-19 18:03:38 +08001401 valid_node_count = sbi->total_valid_node_count + 1;
Chao Yucfb271d2013-12-05 17:15:22 +08001402 if (unlikely(valid_node_count > sbi->total_node_count)) {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001403 spin_unlock(&sbi->stat_lock);
1404 return false;
1405 }
1406
1407 if (inode)
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001408 f2fs_i_blocks_write(inode, 1, true);
Gu Zhengef86d702013-11-19 18:03:38 +08001409
Gu Zhengef86d702013-11-19 18:03:38 +08001410 sbi->total_valid_node_count++;
1411 sbi->total_valid_block_count++;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001412 spin_unlock(&sbi->stat_lock);
1413
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07001414 percpu_counter_inc(&sbi->alloc_valid_block_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001415 return true;
1416}
1417
1418static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
Gu Zhengef86d702013-11-19 18:03:38 +08001419 struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001420{
1421 spin_lock(&sbi->stat_lock);
1422
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001423 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1424 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1425 f2fs_bug_on(sbi, !inode->i_blocks);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001426
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001427 f2fs_i_blocks_write(inode, 1, false);
Gu Zhengef86d702013-11-19 18:03:38 +08001428 sbi->total_valid_node_count--;
1429 sbi->total_valid_block_count--;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001430
1431 spin_unlock(&sbi->stat_lock);
1432}
1433
1434static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1435{
Jaegeuk Kim8b8343f2014-02-24 13:00:13 +09001436 return sbi->total_valid_node_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001437}
1438
1439static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1440{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001441 percpu_counter_inc(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001442}
1443
Jaegeuk Kim0e802202013-11-26 16:36:20 +09001444static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001445{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001446 percpu_counter_dec(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001447}
1448
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001449static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001450{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001451 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001452}
1453
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07001454static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1455 pgoff_t index, bool for_write)
1456{
Jaegeuk Kimc41f3cc32016-04-29 16:17:09 -07001457#ifdef CONFIG_F2FS_FAULT_INJECTION
1458 struct page *page = find_lock_page(mapping, index);
1459 if (page)
1460 return page;
1461
Chao Yu1ecc0c52016-09-23 21:30:09 +08001462 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC))
Jaegeuk Kimc41f3cc32016-04-29 16:17:09 -07001463 return NULL;
1464#endif
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07001465 if (!for_write)
1466 return grab_cache_page(mapping, index);
1467 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1468}
1469
Jaegeuk Kim6e2c64a2015-10-07 12:28:41 -07001470static inline void f2fs_copy_page(struct page *src, struct page *dst)
1471{
1472 char *src_kaddr = kmap(src);
1473 char *dst_kaddr = kmap(dst);
1474
1475 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1476 kunmap(dst);
1477 kunmap(src);
1478}
1479
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001480static inline void f2fs_put_page(struct page *page, int unlock)
1481{
Jaegeuk Kim031fa8c2013-11-28 12:55:13 +09001482 if (!page)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001483 return;
1484
1485 if (unlock) {
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001486 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001487 unlock_page(page);
1488 }
Kirill A. Shutemov09cbfea2016-04-01 15:29:47 +03001489 put_page(page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001490}
1491
1492static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1493{
1494 if (dn->node_page)
1495 f2fs_put_page(dn->node_page, 1);
1496 if (dn->inode_page && dn->node_page != dn->inode_page)
1497 f2fs_put_page(dn->inode_page, 0);
1498 dn->node_page = NULL;
1499 dn->inode_page = NULL;
1500}
1501
1502static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
Gu Zhenge8512d22014-03-07 18:43:28 +08001503 size_t size)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001504{
Gu Zhenge8512d22014-03-07 18:43:28 +08001505 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001506}
1507
Gu Zheng7bd59382013-10-22 14:52:26 +08001508static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1509 gfp_t flags)
1510{
1511 void *entry;
Gu Zheng7bd59382013-10-22 14:52:26 +08001512
Jaegeuk Kim80c54502015-08-20 08:51:56 -07001513 entry = kmem_cache_alloc(cachep, flags);
1514 if (!entry)
1515 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
Gu Zheng7bd59382013-10-22 14:52:26 +08001516 return entry;
1517}
1518
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001519static inline struct bio *f2fs_bio_alloc(int npages)
1520{
1521 struct bio *bio;
1522
1523 /* No failure on bio allocation */
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001524 bio = bio_alloc(GFP_NOIO, npages);
Jaegeuk Kim80c54502015-08-20 08:51:56 -07001525 if (!bio)
1526 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001527 return bio;
1528}
1529
Jaegeuk Kim9be32d72014-12-05 10:39:49 -08001530static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1531 unsigned long index, void *item)
1532{
1533 while (radix_tree_insert(root, index, item))
1534 cond_resched();
1535}
1536
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001537#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1538
1539static inline bool IS_INODE(struct page *page)
1540{
Gu Zheng45590712013-07-15 17:57:38 +08001541 struct f2fs_node *p = F2FS_NODE(page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001542 return RAW_IS_INODE(p);
1543}
1544
1545static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1546{
1547 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1548}
1549
1550static inline block_t datablock_addr(struct page *node_page,
1551 unsigned int offset)
1552{
1553 struct f2fs_node *raw_node;
1554 __le32 *addr_array;
Gu Zheng45590712013-07-15 17:57:38 +08001555 raw_node = F2FS_NODE(node_page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001556 addr_array = blkaddr_in_node(raw_node);
1557 return le32_to_cpu(addr_array[offset]);
1558}
1559
1560static inline int f2fs_test_bit(unsigned int nr, char *addr)
1561{
1562 int mask;
1563
1564 addr += (nr >> 3);
1565 mask = 1 << (7 - (nr & 0x07));
1566 return mask & *addr;
1567}
1568
Jaegeuk Kima66cdd92015-04-30 22:37:50 -07001569static inline void f2fs_set_bit(unsigned int nr, char *addr)
1570{
1571 int mask;
1572
1573 addr += (nr >> 3);
1574 mask = 1 << (7 - (nr & 0x07));
1575 *addr |= mask;
1576}
1577
1578static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1579{
1580 int mask;
1581
1582 addr += (nr >> 3);
1583 mask = 1 << (7 - (nr & 0x07));
1584 *addr &= ~mask;
1585}
1586
Gu Zheng52aca072014-10-20 17:45:51 +08001587static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001588{
1589 int mask;
1590 int ret;
1591
1592 addr += (nr >> 3);
1593 mask = 1 << (7 - (nr & 0x07));
1594 ret = mask & *addr;
1595 *addr |= mask;
1596 return ret;
1597}
1598
Gu Zheng52aca072014-10-20 17:45:51 +08001599static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001600{
1601 int mask;
1602 int ret;
1603
1604 addr += (nr >> 3);
1605 mask = 1 << (7 - (nr & 0x07));
1606 ret = mask & *addr;
1607 *addr &= ~mask;
1608 return ret;
1609}
1610
Gu Zhengc6ac4c02014-10-20 17:45:50 +08001611static inline void f2fs_change_bit(unsigned int nr, char *addr)
1612{
1613 int mask;
1614
1615 addr += (nr >> 3);
1616 mask = 1 << (7 - (nr & 0x07));
1617 *addr ^= mask;
1618}
1619
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001620/* used for f2fs_inode_info->flags */
1621enum {
1622 FI_NEW_INODE, /* indicate newly allocated inode */
Jaegeuk Kimb3783872013-06-10 09:17:01 +09001623 FI_DIRTY_INODE, /* indicate inode is dirty or not */
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001624 FI_AUTO_RECOVER, /* indicate inode is recoverable */
Jaegeuk Kimed57c272014-04-15 11:19:28 +09001625 FI_DIRTY_DIR, /* indicate directory has dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001626 FI_INC_LINK, /* need to increment i_nlink */
1627 FI_ACL_MODE, /* indicate acl mode */
1628 FI_NO_ALLOC, /* should not allocate any blocks */
Jaegeuk Kimc9b63bd2015-06-23 10:36:08 -07001629 FI_FREE_NID, /* free allocated nide */
Jaegeuk Kimc11abd12013-11-19 10:41:54 +09001630 FI_NO_EXTENT, /* not to use the extent cache */
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001631 FI_INLINE_XATTR, /* used for inline xattr */
Huajun Li1001b342013-11-10 23:13:16 +08001632 FI_INLINE_DATA, /* used for inline data*/
Chao Yu34d67de2014-09-24 18:15:19 +08001633 FI_INLINE_DENTRY, /* used for inline dentry */
Jaegeuk Kimfff04f92014-07-25 07:40:59 -07001634 FI_APPEND_WRITE, /* inode has appended data */
1635 FI_UPDATE_WRITE, /* inode has in-place-update data */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001636 FI_NEED_IPU, /* used for ipu per file */
1637 FI_ATOMIC_FILE, /* indicate atomic file */
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001638 FI_VOLATILE_FILE, /* indicate volatile file */
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001639 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001640 FI_DROP_CACHE, /* drop dirty page cache */
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001641 FI_DATA_EXIST, /* indicate data exists */
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001642 FI_INLINE_DOTS, /* indicate inline dot dentries */
Chao Yud323d002015-10-27 09:53:45 +08001643 FI_DO_DEFRAG, /* indicate defragment is running */
Chao Yuc227f912015-12-16 13:09:20 +08001644 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001645};
1646
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001647static inline void __mark_inode_dirty_flag(struct inode *inode,
1648 int flag, bool set)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001649{
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001650 switch (flag) {
1651 case FI_INLINE_XATTR:
1652 case FI_INLINE_DATA:
1653 case FI_INLINE_DENTRY:
1654 if (set)
1655 return;
1656 case FI_DATA_EXIST:
1657 case FI_INLINE_DOTS:
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001658 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001659 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001660}
1661
Jaegeuk Kim91942322016-05-20 10:13:22 -07001662static inline void set_inode_flag(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001663{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001664 if (!test_bit(flag, &F2FS_I(inode)->flags))
1665 set_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001666 __mark_inode_dirty_flag(inode, flag, true);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001667}
1668
Jaegeuk Kim91942322016-05-20 10:13:22 -07001669static inline int is_inode_flag_set(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001670{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001671 return test_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001672}
1673
Jaegeuk Kim91942322016-05-20 10:13:22 -07001674static inline void clear_inode_flag(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001675{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001676 if (test_bit(flag, &F2FS_I(inode)->flags))
1677 clear_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001678 __mark_inode_dirty_flag(inode, flag, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001679}
1680
Jaegeuk Kim91942322016-05-20 10:13:22 -07001681static inline void set_acl_inode(struct inode *inode, umode_t mode)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001682{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001683 F2FS_I(inode)->i_acl_mode = mode;
1684 set_inode_flag(inode, FI_ACL_MODE);
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001685 f2fs_mark_inode_dirty_sync(inode, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001686}
1687
Jaegeuk Kima1961242016-05-20 09:43:20 -07001688static inline void f2fs_i_links_write(struct inode *inode, bool inc)
1689{
1690 if (inc)
1691 inc_nlink(inode);
1692 else
1693 drop_nlink(inode);
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001694 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kima1961242016-05-20 09:43:20 -07001695}
1696
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001697static inline void f2fs_i_blocks_write(struct inode *inode,
1698 blkcnt_t diff, bool add)
1699{
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001700 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1701 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1702
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001703 inode->i_blocks = add ? inode->i_blocks + diff :
1704 inode->i_blocks - diff;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001705 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001706 if (clean || recover)
1707 set_inode_flag(inode, FI_AUTO_RECOVER);
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001708}
1709
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07001710static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
1711{
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001712 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1713 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1714
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07001715 if (i_size_read(inode) == i_size)
1716 return;
1717
1718 i_size_write(inode, i_size);
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001719 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001720 if (clean || recover)
1721 set_inode_flag(inode, FI_AUTO_RECOVER);
1722}
1723
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001724static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
1725{
1726 F2FS_I(inode)->i_current_depth = depth;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001727 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001728}
1729
1730static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
1731{
1732 F2FS_I(inode)->i_xattr_nid = xnid;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001733 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001734}
1735
1736static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
1737{
1738 F2FS_I(inode)->i_pino = pino;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001739 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001740}
1741
Jaegeuk Kim91942322016-05-20 10:13:22 -07001742static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001743{
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001744 struct f2fs_inode_info *fi = F2FS_I(inode);
1745
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001746 if (ri->i_inline & F2FS_INLINE_XATTR)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001747 set_bit(FI_INLINE_XATTR, &fi->flags);
Huajun Li1001b342013-11-10 23:13:16 +08001748 if (ri->i_inline & F2FS_INLINE_DATA)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001749 set_bit(FI_INLINE_DATA, &fi->flags);
Chao Yu34d67de2014-09-24 18:15:19 +08001750 if (ri->i_inline & F2FS_INLINE_DENTRY)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001751 set_bit(FI_INLINE_DENTRY, &fi->flags);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001752 if (ri->i_inline & F2FS_DATA_EXIST)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001753 set_bit(FI_DATA_EXIST, &fi->flags);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001754 if (ri->i_inline & F2FS_INLINE_DOTS)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001755 set_bit(FI_INLINE_DOTS, &fi->flags);
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001756}
1757
Jaegeuk Kim91942322016-05-20 10:13:22 -07001758static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001759{
1760 ri->i_inline = 0;
1761
Jaegeuk Kim91942322016-05-20 10:13:22 -07001762 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001763 ri->i_inline |= F2FS_INLINE_XATTR;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001764 if (is_inode_flag_set(inode, FI_INLINE_DATA))
Huajun Li1001b342013-11-10 23:13:16 +08001765 ri->i_inline |= F2FS_INLINE_DATA;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001766 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
Chao Yu34d67de2014-09-24 18:15:19 +08001767 ri->i_inline |= F2FS_INLINE_DENTRY;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001768 if (is_inode_flag_set(inode, FI_DATA_EXIST))
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001769 ri->i_inline |= F2FS_DATA_EXIST;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001770 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001771 ri->i_inline |= F2FS_INLINE_DOTS;
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001772}
1773
Chao Yu987c7c32014-03-12 15:59:03 +08001774static inline int f2fs_has_inline_xattr(struct inode *inode)
1775{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001776 return is_inode_flag_set(inode, FI_INLINE_XATTR);
Chao Yu987c7c32014-03-12 15:59:03 +08001777}
1778
Chao Yu81ca7352016-01-26 15:39:35 +08001779static inline unsigned int addrs_per_inode(struct inode *inode)
Jaegeuk Kimde936532013-08-12 21:08:03 +09001780{
Chao Yu81ca7352016-01-26 15:39:35 +08001781 if (f2fs_has_inline_xattr(inode))
Jaegeuk Kimde936532013-08-12 21:08:03 +09001782 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1783 return DEF_ADDRS_PER_INODE;
1784}
1785
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001786static inline void *inline_xattr_addr(struct page *page)
1787{
Chao Yu695fd1e2014-02-27 19:52:21 +08001788 struct f2fs_inode *ri = F2FS_INODE(page);
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001789 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
1790 F2FS_INLINE_XATTR_ADDRS]);
1791}
1792
1793static inline int inline_xattr_size(struct inode *inode)
1794{
Chao Yu987c7c32014-03-12 15:59:03 +08001795 if (f2fs_has_inline_xattr(inode))
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001796 return F2FS_INLINE_XATTR_ADDRS << 2;
1797 else
1798 return 0;
1799}
1800
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09001801static inline int f2fs_has_inline_data(struct inode *inode)
1802{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001803 return is_inode_flag_set(inode, FI_INLINE_DATA);
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09001804}
1805
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001806static inline void f2fs_clear_inline_inode(struct inode *inode)
1807{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001808 clear_inode_flag(inode, FI_INLINE_DATA);
1809 clear_inode_flag(inode, FI_DATA_EXIST);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001810}
1811
1812static inline int f2fs_exist_data(struct inode *inode)
1813{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001814 return is_inode_flag_set(inode, FI_DATA_EXIST);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001815}
1816
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001817static inline int f2fs_has_inline_dots(struct inode *inode)
1818{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001819 return is_inode_flag_set(inode, FI_INLINE_DOTS);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001820}
1821
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001822static inline bool f2fs_is_atomic_file(struct inode *inode)
1823{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001824 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001825}
1826
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001827static inline bool f2fs_is_volatile_file(struct inode *inode)
1828{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001829 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001830}
1831
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001832static inline bool f2fs_is_first_block_written(struct inode *inode)
1833{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001834 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001835}
1836
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001837static inline bool f2fs_is_drop_cache(struct inode *inode)
1838{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001839 return is_inode_flag_set(inode, FI_DROP_CACHE);
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001840}
1841
Huajun Li1001b342013-11-10 23:13:16 +08001842static inline void *inline_data_addr(struct page *page)
1843{
Chao Yu695fd1e2014-02-27 19:52:21 +08001844 struct f2fs_inode *ri = F2FS_INODE(page);
Huajun Li1001b342013-11-10 23:13:16 +08001845 return (void *)&(ri->i_addr[1]);
1846}
1847
Chao Yu34d67de2014-09-24 18:15:19 +08001848static inline int f2fs_has_inline_dentry(struct inode *inode)
1849{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001850 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
Chao Yu34d67de2014-09-24 18:15:19 +08001851}
1852
Jaegeuk Kim9486ba42014-11-21 16:36:28 -08001853static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
1854{
1855 if (!f2fs_has_inline_dentry(dir))
1856 kunmap(page);
1857}
1858
Jaegeuk Kimb5492af2015-04-20 13:44:41 -07001859static inline int is_file(struct inode *inode, int type)
1860{
1861 return F2FS_I(inode)->i_advise & type;
1862}
1863
1864static inline void set_file(struct inode *inode, int type)
1865{
1866 F2FS_I(inode)->i_advise |= type;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001867 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kimb5492af2015-04-20 13:44:41 -07001868}
1869
1870static inline void clear_file(struct inode *inode, int type)
1871{
1872 F2FS_I(inode)->i_advise &= ~type;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07001873 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kimb5492af2015-04-20 13:44:41 -07001874}
1875
Jaegeuk Kim26787232016-11-28 15:33:38 -08001876static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
1877{
1878 if (dsync) {
1879 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1880 bool ret;
1881
1882 spin_lock(&sbi->inode_lock[DIRTY_META]);
1883 ret = list_empty(&F2FS_I(inode)->gdirty_list);
1884 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1885 return ret;
1886 }
1887 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
1888 file_keep_isize(inode) ||
1889 i_size_read(inode) & PAGE_MASK)
1890 return false;
1891 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
Chao Yu267378d2014-04-23 14:10:24 +08001892}
1893
1894static inline int f2fs_readonly(struct super_block *sb)
1895{
1896 return sb->s_flags & MS_RDONLY;
1897}
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001898
1899static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
1900{
Chao Yuaaec2b12016-09-20 11:04:18 +08001901 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001902}
1903
Jaegeuk Kimeaa693f2015-04-26 00:15:29 -07001904static inline bool is_dot_dotdot(const struct qstr *str)
1905{
1906 if (str->len == 1 && str->name[0] == '.')
1907 return true;
1908
1909 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
1910 return true;
1911
1912 return false;
1913}
1914
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001915static inline bool f2fs_may_extent_tree(struct inode *inode)
1916{
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001917 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
Jaegeuk Kim91942322016-05-20 10:13:22 -07001918 is_inode_flag_set(inode, FI_NO_EXTENT))
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001919 return false;
1920
Al Viro886f56f2015-12-05 03:56:06 -05001921 return S_ISREG(inode->i_mode);
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001922}
1923
Chao Yu1ecc0c52016-09-23 21:30:09 +08001924static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
1925 size_t size, gfp_t flags)
Jaegeuk Kim0414b002016-04-29 15:16:42 -07001926{
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -07001927#ifdef CONFIG_F2FS_FAULT_INJECTION
Chao Yu1ecc0c52016-09-23 21:30:09 +08001928 if (time_to_inject(sbi, FAULT_KMALLOC))
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -07001929 return NULL;
1930#endif
Jaegeuk Kim0414b002016-04-29 15:16:42 -07001931 return kmalloc(size, flags);
1932}
1933
Jaegeuk Kim39307a82015-09-22 13:50:47 -07001934static inline void *f2fs_kvmalloc(size_t size, gfp_t flags)
1935{
1936 void *ret;
1937
1938 ret = kmalloc(size, flags | __GFP_NOWARN);
1939 if (!ret)
1940 ret = __vmalloc(size, flags, PAGE_KERNEL);
1941 return ret;
1942}
1943
1944static inline void *f2fs_kvzalloc(size_t size, gfp_t flags)
1945{
1946 void *ret;
1947
1948 ret = kzalloc(size, flags | __GFP_NOWARN);
1949 if (!ret)
1950 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
1951 return ret;
1952}
1953
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001954#define get_inode_mode(i) \
Jaegeuk Kim91942322016-05-20 10:13:22 -07001955 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001956 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
1957
1958/* get offset of first page in next direct node */
Chao Yu81ca7352016-01-26 15:39:35 +08001959#define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
1960 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
1961 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
1962 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
Jaegeuk Kim1e1bb4b2013-12-26 12:49:48 +09001963
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001964/*
Jaegeuk Kim2d4d9fb52013-06-07 16:33:07 +09001965 * file.c
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001966 */
1967int f2fs_sync_file(struct file *, loff_t, loff_t, int);
Jaegeuk Kimb292dcab2013-05-22 08:02:02 +09001968void truncate_data_blocks(struct dnode_of_data *);
Jaegeuk Kim764aa3e2014-08-14 16:32:54 -07001969int truncate_blocks(struct inode *, u64, bool);
Jaegeuk Kim9a449e92016-06-02 13:49:38 -07001970int f2fs_truncate(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001971int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
1972int f2fs_setattr(struct dentry *, struct iattr *);
1973int truncate_hole(struct inode *, pgoff_t, pgoff_t);
Namjae Jeone9750822013-02-04 23:41:41 +09001974int truncate_data_blocks_range(struct dnode_of_data *, int);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001975long f2fs_ioctl(struct file *, unsigned int, unsigned long);
1976long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long);
1977
1978/*
1979 * inode.c
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001980 */
1981void f2fs_set_inode_flags(struct inode *);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001982struct inode *f2fs_iget(struct super_block *, unsigned long);
Jaegeuk Kime8ea9b32016-09-09 16:59:39 -07001983struct inode *f2fs_iget_retry(struct super_block *, unsigned long);
Jaegeuk Kim4660f9c2013-10-24 14:19:18 +09001984int try_to_free_nats(struct f2fs_sb_info *, int);
Jaegeuk Kim12719ae2016-01-07 13:23:12 -08001985int update_inode(struct inode *, struct page *);
1986int update_inode_page(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001987int f2fs_write_inode(struct inode *, struct writeback_control *);
1988void f2fs_evict_inode(struct inode *);
Jaegeuk Kim44c16152014-09-25 11:55:53 -07001989void handle_failed_inode(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001990
1991/*
1992 * namei.c
1993 */
1994struct dentry *f2fs_get_parent(struct dentry *child);
1995
1996/*
1997 * dir.c
1998 */
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001999void set_de_type(struct f2fs_dir_entry *, umode_t);
Chao Yu675f10b2016-02-22 18:29:18 +08002000unsigned char get_de_type(struct f2fs_dir_entry *);
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002001struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *,
Jaegeuk Kim6e22c692015-04-27 17:12:39 -07002002 f2fs_hash_t, int *, struct f2fs_dentry_ptr *);
Chao Yued6bd4b2016-10-29 18:46:34 +08002003int f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002004 unsigned int, struct fscrypt_str *);
Jaegeuk Kim062a3e72014-10-18 23:06:41 -07002005void do_make_empty_dir(struct inode *, struct inode *,
2006 struct f2fs_dentry_ptr *);
Chao Yudbeacf02014-09-24 18:17:04 +08002007struct page *init_inode_metadata(struct inode *, struct inode *,
Chao Yu9421d572016-08-28 18:57:55 +08002008 const struct qstr *, const struct qstr *, struct page *);
Chao Yudbeacf02014-09-24 18:17:04 +08002009void update_parent_metadata(struct inode *, struct inode *, unsigned int);
Jaegeuk Kima82afa22014-10-13 16:28:13 -07002010int room_for_filename(const void *, int, int);
Jaegeuk Kim9f7c45c2016-06-01 21:18:25 -07002011void f2fs_drop_nlink(struct inode *, struct inode *);
Shuoran Liue7ba1082016-08-29 11:27:56 +08002012struct f2fs_dir_entry *__f2fs_find_entry(struct inode *, struct fscrypt_name *,
2013 struct page **);
Al Viro185de682016-07-20 23:07:13 -04002014struct f2fs_dir_entry *f2fs_find_entry(struct inode *, const struct qstr *,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002015 struct page **);
2016struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **);
Linus Torvalds835c92d2016-08-06 09:49:02 -04002017ino_t f2fs_inode_by_name(struct inode *, const struct qstr *, struct page **);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002018void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
2019 struct page *, struct inode *);
Jaegeuk Kime7d55452015-04-29 17:02:18 -07002020int update_dent_inode(struct inode *, struct inode *, const struct qstr *);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002021void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *,
Chao Yu3b4d7322015-02-16 16:17:20 +08002022 const struct qstr *, f2fs_hash_t , unsigned int);
Chao Yu675f10b2016-02-22 18:29:18 +08002023int f2fs_add_regular_entry(struct inode *, const struct qstr *,
Chao Yu9421d572016-08-28 18:57:55 +08002024 const struct qstr *, struct inode *, nid_t, umode_t);
Shuoran Liue7ba1082016-08-29 11:27:56 +08002025int __f2fs_do_add_link(struct inode *, struct fscrypt_name*, struct inode *,
2026 nid_t, umode_t);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002027int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t,
2028 umode_t);
Chao Yudbeacf02014-09-24 18:17:04 +08002029void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *,
2030 struct inode *);
Jaegeuk Kimb97a9b52014-06-20 21:37:02 -07002031int f2fs_do_tmpfile(struct inode *, struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002032bool f2fs_empty_dir(struct inode *);
2033
Al Virob7f7a5e2013-01-25 16:15:43 -05002034static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2035{
David Howells2b0143b2015-03-17 22:25:59 +00002036 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002037 inode, inode->i_ino, inode->i_mode);
Al Virob7f7a5e2013-01-25 16:15:43 -05002038}
2039
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002040/*
2041 * super.c
2042 */
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002043int f2fs_inode_dirtied(struct inode *, bool);
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07002044void f2fs_inode_synced(struct inode *);
Chao Yuc5bda1c2015-06-08 13:28:03 +08002045int f2fs_commit_super(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002046int f2fs_sync_fs(struct super_block *, int);
Namjae Jeona07ef782012-12-30 14:52:05 +09002047extern __printf(3, 4)
2048void f2fs_msg(struct super_block *, const char *, const char *, ...);
Shawn Lin984ec632016-02-17 11:26:32 +08002049int sanity_check_ckpt(struct f2fs_sb_info *sbi);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002050
2051/*
2052 * hash.c
2053 */
Gu Zhengeee61602014-06-24 18:21:23 +08002054f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002055
2056/*
2057 * node.c
2058 */
2059struct dnode_of_data;
2060struct node_info;
2061
Jaegeuk Kim6fb03f32014-04-16 10:47:06 +09002062bool available_free_memory(struct f2fs_sb_info *, int);
Jaegeuk Kim2dcf51a2015-04-29 18:31:19 -07002063int need_dentry_mark(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim88bd02c2014-09-15 14:50:48 -07002064bool is_checkpointed_node(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim88bd02c2014-09-15 14:50:48 -07002065bool need_inode_block_update(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002066void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
Chao Yu3cf45742016-01-26 15:40:44 +08002067pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002068int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
2069int truncate_inode_blocks(struct inode *, pgoff_t);
Jaegeuk Kim4f16fb02013-08-14 20:40:06 +09002070int truncate_xattr_node(struct inode *, struct page *);
Jaegeuk Kimcfe58f92013-10-31 14:57:01 +09002071int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
Chao Yu13ec7292015-08-24 17:40:45 +08002072int remove_inode_page(struct inode *);
Jaegeuk Kima014e032014-06-20 21:44:02 -07002073struct page *new_inode_page(struct inode *);
Jaegeuk Kim8ae8f162013-06-03 19:46:19 +09002074struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002075void ra_node_page(struct f2fs_sb_info *, nid_t);
2076struct page *get_node_page(struct f2fs_sb_info *, pgoff_t);
2077struct page *get_node_page_ra(struct page *, int);
Chao Yuda011cc2016-04-27 21:40:15 +08002078void move_node_page(struct page *, int);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07002079int fsync_node_pages(struct f2fs_sb_info *, struct inode *,
2080 struct writeback_control *, bool);
Jaegeuk Kim52681372016-04-13 16:24:44 -07002081int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *);
Chao Yu3a2ad562016-10-11 22:31:35 +08002082void build_free_nids(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002083bool alloc_nid(struct f2fs_sb_info *, nid_t *);
2084void alloc_nid_done(struct f2fs_sb_info *, nid_t);
2085void alloc_nid_failed(struct f2fs_sb_info *, nid_t);
Chao Yu31696582015-07-28 18:33:46 +08002086int try_to_free_nids(struct f2fs_sb_info *, int);
Chao Yu70cfed82014-08-02 15:26:04 +08002087void recover_inline_xattr(struct inode *, struct page *);
Jaegeuk Kim1c35a902014-08-07 23:49:17 -07002088void recover_xattr_data(struct inode *, struct page *, block_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002089int recover_inode_page(struct f2fs_sb_info *, struct page *);
2090int restore_node_summary(struct f2fs_sb_info *, unsigned int,
2091 struct f2fs_summary_block *);
2092void flush_nat_entries(struct f2fs_sb_info *);
2093int build_node_manager(struct f2fs_sb_info *);
2094void destroy_node_manager(struct f2fs_sb_info *);
Namjae Jeon6e6093a2013-01-17 00:08:30 +09002095int __init create_node_manager_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002096void destroy_node_manager_caches(void);
2097
2098/*
2099 * segment.c
2100 */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07002101void register_inmem_page(struct inode *, struct page *);
Chao Yu29b96b52016-02-06 14:38:29 +08002102void drop_inmem_pages(struct inode *);
2103int commit_inmem_pages(struct inode *);
Jaegeuk Kim2c4db1a2016-01-07 14:15:04 -08002104void f2fs_balance_fs(struct f2fs_sb_info *, bool);
Jaegeuk Kim4660f9c2013-10-24 14:19:18 +09002105void f2fs_balance_fs_bg(struct f2fs_sb_info *);
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +09002106int f2fs_issue_flush(struct f2fs_sb_info *);
Gu Zheng2163d192014-04-27 14:21:33 +08002107int create_flush_cmd_control(struct f2fs_sb_info *);
Jaegeuk Kim5eba8c52016-12-07 16:23:32 -08002108void destroy_flush_cmd_control(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002109void invalidate_blocks(struct f2fs_sb_info *, block_t);
Jaegeuk Kim6e2c64a2015-10-07 12:28:41 -07002110bool is_checkpointed_data(struct f2fs_sb_info *, block_t);
Jaegeuk Kim5e443812014-01-28 12:22:14 +09002111void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);
Chao Yu275b66b2016-08-29 23:58:34 +08002112void f2fs_wait_all_discard_bio(struct f2fs_sb_info *);
Jaegeuk Kim836b5a62015-04-30 22:50:06 -07002113void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002114void release_discard_addrs(struct f2fs_sb_info *);
Chao Yu3fa06d72014-12-09 14:21:46 +08002115int npages_for_summary_flush(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002116void allocate_new_segments(struct f2fs_sb_info *);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002117int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002118struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
Chao Yu381722d2015-05-19 17:40:04 +08002119void update_meta_page(struct f2fs_sb_info *, void *, block_t);
Jaegeuk Kim577e3492013-01-24 19:56:11 +09002120void write_meta_page(struct f2fs_sb_info *, struct page *);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002121void write_node_page(unsigned int, struct f2fs_io_info *);
2122void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
2123void rewrite_data_page(struct f2fs_io_info *);
Chao Yu4356e482016-02-23 17:52:43 +08002124void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *,
2125 block_t, block_t, bool, bool);
Chao Yu528e3452015-05-28 19:15:35 +08002126void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *,
Chao Yu28bc1062016-02-06 14:40:34 +08002127 block_t, block_t, unsigned char, bool, bool);
Jaegeuk Kimbfad7c22013-12-16 19:04:05 +09002128void allocate_data_block(struct f2fs_sb_info *, struct page *,
2129 block_t, block_t *, struct f2fs_summary *, int);
Jaegeuk Kimfec1d652016-01-20 23:43:51 +08002130void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool);
Chao Yu08b39fb2015-10-08 13:27:34 +08002131void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002132void write_data_summaries(struct f2fs_sb_info *, block_t);
2133void write_node_summaries(struct f2fs_sb_info *, block_t);
Chao Yudfc08a12016-02-14 18:50:40 +08002134int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002135void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002136int build_segment_manager(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002137void destroy_segment_manager(struct f2fs_sb_info *);
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +09002138int __init create_segment_manager_caches(void);
2139void destroy_segment_manager_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002140
2141/*
2142 * checkpoint.c
2143 */
Jaegeuk Kim38f91ca2016-05-18 14:07:56 -07002144void f2fs_stop_checkpoint(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002145struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t);
2146struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t);
Chao Yu2b947002015-10-12 17:04:21 +08002147struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t);
Chao Yuf0c9cad2015-04-18 18:05:36 +08002148bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int);
Chao Yu26879fb2015-10-12 17:05:59 +08002149int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool);
Chao Yu635aee12014-12-08 15:02:52 +08002150void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002151long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long);
Chao Yua49324f2015-12-15 13:29:47 +08002152void add_ino_entry(struct f2fs_sb_info *, nid_t, int type);
2153void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type);
Jaegeuk Kim74ef9242016-05-02 22:09:56 -07002154void release_ino_entry(struct f2fs_sb_info *, bool);
Jaegeuk Kimfff04f92014-07-25 07:40:59 -07002155bool exist_written_data(struct f2fs_sb_info *, nid_t, int);
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07002156int f2fs_sync_inode_meta(struct f2fs_sb_info *);
Jaegeuk Kimcbd56e72013-07-30 11:36:53 +09002157int acquire_orphan_inode(struct f2fs_sb_info *);
2158void release_orphan_inode(struct f2fs_sb_info *);
Jaegeuk Kim67c37582016-06-13 18:27:02 -07002159void add_orphan_inode(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002160void remove_orphan_inode(struct f2fs_sb_info *, nid_t);
Chao Yu8c14bfa2015-08-07 17:58:43 +08002161int recover_orphan_inodes(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002162int get_valid_checkpoint(struct f2fs_sb_info *);
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07002163void update_dirty_page(struct inode *, struct page *);
Chao Yuc227f912015-12-16 13:09:20 +08002164void remove_dirty_inode(struct inode *);
Chao Yu6d5a1492015-12-24 18:04:56 +08002165int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type);
Chao Yuc34f42e2015-12-23 17:50:30 +08002166int write_checkpoint(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim6451e042014-07-25 15:47:17 -07002167void init_ino_entry_info(struct f2fs_sb_info *);
Namjae Jeon6e6093a2013-01-17 00:08:30 +09002168int __init create_checkpoint_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002169void destroy_checkpoint_caches(void);
2170
2171/*
2172 * data.c
2173 */
Jaegeuk Kim458e6192013-12-11 13:54:01 +09002174void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
Chao Yu0c3a5792016-01-18 18:28:11 +08002175void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *,
2176 struct page *, nid_t, enum page_type, int);
Chao Yu406657d2016-02-24 17:17:55 +08002177void f2fs_flush_merged_bios(struct f2fs_sb_info *);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002178int f2fs_submit_page_bio(struct f2fs_io_info *);
Jaegeuk Kim0a595eb2016-12-14 10:12:56 -08002179int f2fs_submit_page_mbio(struct f2fs_io_info *);
Jaegeuk Kim3c62be12016-10-06 19:02:05 -07002180struct block_device *f2fs_target_device(struct f2fs_sb_info *,
2181 block_t, struct bio *);
2182int f2fs_target_device_index(struct f2fs_sb_info *, block_t);
Chao Yu216a6202015-03-19 19:23:32 +08002183void set_data_blkaddr(struct dnode_of_data *);
Chao Yuf28b3432016-02-24 17:16:47 +08002184void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t);
Chao Yu46008c62016-05-09 19:56:30 +08002185int reserve_new_blocks(struct dnode_of_data *, blkcnt_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002186int reserve_new_block(struct dnode_of_data *);
Fan Li759af1c2015-08-05 15:52:16 +08002187int f2fs_get_block(struct dnode_of_data *, pgoff_t);
Jaegeuk Kima7de6082016-11-11 16:31:56 -08002188int f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *);
Huajun Lib6009652013-11-10 23:13:18 +08002189int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07002190struct page *get_read_data_page(struct inode *, pgoff_t, int, bool);
Jaegeuk Kim43f3eae2015-04-30 17:00:33 -07002191struct page *find_data_page(struct inode *, pgoff_t);
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07002192struct page *get_lock_data_page(struct inode *, pgoff_t, bool);
Jaegeuk Kim64aa7ed2013-05-20 09:55:50 +09002193struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002194int do_write_data_page(struct f2fs_io_info *);
Chao Yud323d002015-10-27 09:53:45 +08002195int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int);
Jaegeuk Kim9ab70132014-06-08 04:30:14 +09002196int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
Jaegeuk Kimfe76b792016-06-30 18:40:10 -07002197void f2fs_set_page_dirty_nobuffers(struct page *);
Chao Yu487261f2015-02-05 17:44:29 +08002198void f2fs_invalidate_page(struct page *, unsigned int, unsigned int);
2199int f2fs_release_page(struct page *, gfp_t);
Weichao Guo5b7a4872016-09-20 05:03:27 +08002200#ifdef CONFIG_MIGRATION
2201int f2fs_migrate_page(struct address_space *, struct page *, struct page *,
2202 enum migrate_mode);
2203#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002204
2205/*
2206 * gc.c
2207 */
2208int start_gc_thread(struct f2fs_sb_info *);
2209void stop_gc_thread(struct f2fs_sb_info *);
Chao Yu81ca7352016-01-26 15:39:35 +08002210block_t start_bidx_of_node(unsigned int, struct inode *);
Jaegeuk Kim7702bdb2016-11-14 17:38:35 -08002211int f2fs_gc(struct f2fs_sb_info *, bool, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002212void build_gc_manager(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002213
2214/*
2215 * recovery.c
2216 */
Jaegeuk Kim6781eab2016-03-23 16:12:58 -07002217int recover_fsync_data(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002218bool space_for_roll_forward(struct f2fs_sb_info *);
2219
2220/*
2221 * debug.c
2222 */
2223#ifdef CONFIG_F2FS_STAT_FS
2224struct f2fs_stat_info {
2225 struct list_head stat_list;
2226 struct f2fs_sb_info *sbi;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002227 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2228 int main_area_segs, main_area_sections, main_area_zones;
Chao Yu5b7ee372015-09-30 17:38:48 +08002229 unsigned long long hit_largest, hit_cached, hit_rbtree;
2230 unsigned long long hit_total, total_ext;
Jaegeuk Kimc00ba552015-12-31 15:24:14 -08002231 int ext_tree, zombie_tree, ext_node;
Jaegeuk Kim35782b22016-10-20 19:09:57 -07002232 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2233 int inmem_pages;
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07002234 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
Chao Yub8559dc2016-10-12 19:28:29 +08002235 int nats, dirty_nats, sits, dirty_sits, free_nids, alloc_nids;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002236 int total_count, utilization;
Chao Yu36951b32016-11-16 10:41:20 +08002237 int bg_gc, nr_wb_cp_data, nr_wb_data;
Jaegeuk Kim652be552016-05-10 19:13:50 -07002238 int inline_xattr, inline_inode, inline_dir, orphans;
Yunlei Hef83a2582016-08-18 21:01:18 +08002239 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002240 unsigned int bimodal, avg_vblocks;
2241 int util_free, util_valid, util_invalid;
2242 int rsvd_segs, overp_segs;
2243 int dirty_count, node_pages, meta_pages;
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002244 int prefree_count, call_count, cp_count, bg_cp_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002245 int tot_segs, node_segs, data_segs, free_segs, free_secs;
Changman Leee1235982014-12-23 08:37:39 +09002246 int bg_node_segs, bg_data_segs;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002247 int tot_blks, data_blks, node_blks;
Changman Leee1235982014-12-23 08:37:39 +09002248 int bg_data_blks, bg_node_blks;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002249 int curseg[NR_CURSEG_TYPE];
2250 int cursec[NR_CURSEG_TYPE];
2251 int curzone[NR_CURSEG_TYPE];
2252
2253 unsigned int segment_count[2];
2254 unsigned int block_count[2];
Changman Leeb9a2c252014-12-24 02:16:54 +09002255 unsigned int inplace_count;
Chao Yu9edcdab2015-09-11 14:43:52 +08002256 unsigned long long base_mem, cache_mem, page_mem;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002257};
2258
Gu Zheng963d4f72013-07-12 14:47:11 +08002259static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2260{
Chris Fries6c311ec2014-01-17 14:44:39 -06002261 return (struct f2fs_stat_info *)sbi->stat_info;
Gu Zheng963d4f72013-07-12 14:47:11 +08002262}
2263
Changman Lee942e0be2014-02-13 15:12:29 +09002264#define stat_inc_cp_count(si) ((si)->cp_count++)
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002265#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002266#define stat_inc_call_count(si) ((si)->call_count++)
2267#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
Chao Yu33fbd512015-12-17 17:14:44 +08002268#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2269#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
Chao Yu5b7ee372015-09-30 17:38:48 +08002270#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2271#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2272#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2273#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
Chao Yud5e8f6c2015-07-15 17:28:53 +08002274#define stat_inc_inline_xattr(inode) \
2275 do { \
2276 if (f2fs_has_inline_xattr(inode)) \
2277 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2278 } while (0)
2279#define stat_dec_inline_xattr(inode) \
2280 do { \
2281 if (f2fs_has_inline_xattr(inode)) \
2282 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2283 } while (0)
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002284#define stat_inc_inline_inode(inode) \
2285 do { \
2286 if (f2fs_has_inline_data(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002287 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002288 } while (0)
2289#define stat_dec_inline_inode(inode) \
2290 do { \
2291 if (f2fs_has_inline_data(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002292 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002293 } while (0)
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002294#define stat_inc_inline_dir(inode) \
2295 do { \
2296 if (f2fs_has_inline_dentry(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002297 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002298 } while (0)
2299#define stat_dec_inline_dir(inode) \
2300 do { \
2301 if (f2fs_has_inline_dentry(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002302 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002303 } while (0)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002304#define stat_inc_seg_type(sbi, curseg) \
2305 ((sbi)->segment_count[(curseg)->alloc_type]++)
2306#define stat_inc_block_count(sbi, curseg) \
2307 ((sbi)->block_count[(curseg)->alloc_type]++)
Changman Leeb9a2c252014-12-24 02:16:54 +09002308#define stat_inc_inplace_blocks(sbi) \
2309 (atomic_inc(&(sbi)->inplace_count))
Changman Leee1235982014-12-23 08:37:39 +09002310#define stat_inc_seg_count(sbi, type, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002311 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002312 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002313 (si)->tot_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002314 if (type == SUM_TYPE_DATA) { \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002315 si->data_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002316 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2317 } else { \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002318 si->node_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002319 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2320 } \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002321 } while (0)
2322
2323#define stat_inc_tot_blk_count(si, blks) \
2324 (si->tot_blks += (blks))
2325
Changman Leee1235982014-12-23 08:37:39 +09002326#define stat_inc_data_blk_count(sbi, blks, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002327 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002328 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002329 stat_inc_tot_blk_count(si, blks); \
2330 si->data_blks += (blks); \
Changman Leee1235982014-12-23 08:37:39 +09002331 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002332 } while (0)
2333
Changman Leee1235982014-12-23 08:37:39 +09002334#define stat_inc_node_blk_count(sbi, blks, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002335 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002336 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002337 stat_inc_tot_blk_count(si, blks); \
2338 si->node_blks += (blks); \
Changman Leee1235982014-12-23 08:37:39 +09002339 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002340 } while (0)
2341
2342int f2fs_build_stats(struct f2fs_sb_info *);
2343void f2fs_destroy_stats(struct f2fs_sb_info *);
Chao Yu787c7b8c2015-10-29 09:13:04 +08002344int __init f2fs_create_root_stats(void);
Namjae Jeon4589d252013-01-15 19:58:47 +09002345void f2fs_destroy_root_stats(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002346#else
Changman Lee942e0be2014-02-13 15:12:29 +09002347#define stat_inc_cp_count(si)
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002348#define stat_inc_bg_cp_count(si)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002349#define stat_inc_call_count(si)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002350#define stat_inc_bggc_count(si)
Chao Yu33fbd512015-12-17 17:14:44 +08002351#define stat_inc_dirty_inode(sbi, type)
2352#define stat_dec_dirty_inode(sbi, type)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002353#define stat_inc_total_hit(sb)
Chao Yu029e13c2015-08-19 19:13:25 +08002354#define stat_inc_rbtree_node_hit(sb)
Chao Yu91c481f2015-08-19 19:12:20 +08002355#define stat_inc_largest_node_hit(sbi)
2356#define stat_inc_cached_node_hit(sbi)
Chao Yud5e8f6c2015-07-15 17:28:53 +08002357#define stat_inc_inline_xattr(inode)
2358#define stat_dec_inline_xattr(inode)
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002359#define stat_inc_inline_inode(inode)
2360#define stat_dec_inline_inode(inode)
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002361#define stat_inc_inline_dir(inode)
2362#define stat_dec_inline_dir(inode)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002363#define stat_inc_seg_type(sbi, curseg)
2364#define stat_inc_block_count(sbi, curseg)
Changman Leeb9a2c252014-12-24 02:16:54 +09002365#define stat_inc_inplace_blocks(sbi)
Changman Leee1235982014-12-23 08:37:39 +09002366#define stat_inc_seg_count(sbi, type, gc_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002367#define stat_inc_tot_blk_count(si, blks)
Changman Leee1235982014-12-23 08:37:39 +09002368#define stat_inc_data_blk_count(sbi, blks, gc_type)
2369#define stat_inc_node_blk_count(sbi, blks, gc_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002370
2371static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2372static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
Chao Yu787c7b8c2015-10-29 09:13:04 +08002373static inline int __init f2fs_create_root_stats(void) { return 0; }
Namjae Jeon4589d252013-01-15 19:58:47 +09002374static inline void f2fs_destroy_root_stats(void) { }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002375#endif
2376
2377extern const struct file_operations f2fs_dir_operations;
2378extern const struct file_operations f2fs_file_operations;
2379extern const struct inode_operations f2fs_file_inode_operations;
2380extern const struct address_space_operations f2fs_dblock_aops;
2381extern const struct address_space_operations f2fs_node_aops;
2382extern const struct address_space_operations f2fs_meta_aops;
2383extern const struct inode_operations f2fs_dir_inode_operations;
2384extern const struct inode_operations f2fs_symlink_inode_operations;
Jaegeuk Kimcbaf0422015-04-29 15:10:53 -07002385extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002386extern const struct inode_operations f2fs_special_inode_operations;
Jaegeuk Kim29e70432015-02-10 16:23:12 -08002387extern struct kmem_cache *inode_entry_slab;
Huajun Li1001b342013-11-10 23:13:16 +08002388
Huajun Lie18c65b2013-11-10 23:13:19 +08002389/*
2390 * inline.c
2391 */
Jaegeuk Kim01b960e2015-04-23 10:27:21 -07002392bool f2fs_may_inline_data(struct inode *);
2393bool f2fs_may_inline_dentry(struct inode *);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002394void read_inline_data(struct page *, struct page *);
Chao Yu0bfcfcc2015-03-10 13:16:25 +08002395bool truncate_inline_inode(struct page *, u64);
Huajun Lie18c65b2013-11-10 23:13:19 +08002396int f2fs_read_inline_data(struct inode *, struct page *);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002397int f2fs_convert_inline_page(struct dnode_of_data *, struct page *);
2398int f2fs_convert_inline_inode(struct inode *);
2399int f2fs_write_inline_data(struct inode *, struct page *);
Jaegeuk Kim0342fd32014-08-07 16:57:17 -07002400bool recover_inline_data(struct inode *, struct page *);
Jaegeuk Kim6e22c692015-04-27 17:12:39 -07002401struct f2fs_dir_entry *find_in_inline_dir(struct inode *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002402 struct fscrypt_name *, struct page **);
Chao Yu201a05b2014-09-24 18:17:53 +08002403int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *);
Chao Yu9421d572016-08-28 18:57:55 +08002404int f2fs_add_inline_entry(struct inode *, const struct qstr *,
2405 const struct qstr *, struct inode *, nid_t, umode_t);
Chao Yu201a05b2014-09-24 18:17:53 +08002406void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *,
2407 struct inode *, struct inode *);
2408bool f2fs_empty_inline_dir(struct inode *);
Jaegeuk Kimd8c68222015-04-27 16:26:24 -07002409int f2fs_read_inline_dir(struct file *, struct dir_context *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002410 struct fscrypt_str *);
Jaegeuk Kim67f8cf32015-10-15 11:34:49 -07002411int f2fs_inline_data_fiemap(struct inode *,
2412 struct fiemap_extent_info *, __u64, __u64);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002413
2414/*
Jaegeuk Kim2658e502015-06-19 12:01:21 -07002415 * shrinker.c
2416 */
2417unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *);
2418unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *);
2419void f2fs_join_shrinker(struct f2fs_sb_info *);
2420void f2fs_leave_shrinker(struct f2fs_sb_info *);
2421
2422/*
Chao Yua28ef1f2015-07-08 17:59:36 +08002423 * extent_cache.c
2424 */
2425unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int);
Jaegeuk Kimed3d1252015-12-28 11:39:06 -08002426bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *);
Jaegeuk Kim5f281fa2016-07-12 11:07:52 -07002427void f2fs_drop_extent_tree(struct inode *);
Chao Yua28ef1f2015-07-08 17:59:36 +08002428unsigned int f2fs_destroy_extent_node(struct inode *);
2429void f2fs_destroy_extent_tree(struct inode *);
2430bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *);
2431void f2fs_update_extent_cache(struct dnode_of_data *);
Chao Yu19b2c302015-08-26 20:34:48 +08002432void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2433 pgoff_t, block_t, unsigned int);
Chao Yua28ef1f2015-07-08 17:59:36 +08002434void init_extent_cache_info(struct f2fs_sb_info *);
2435int __init create_extent_cache(void);
2436void destroy_extent_cache(void);
2437
2438/*
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002439 * crypto support
2440 */
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002441static inline bool f2fs_encrypted_inode(struct inode *inode)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002442{
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002443 return file_is_encrypt(inode);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002444}
2445
2446static inline void f2fs_set_encrypted_inode(struct inode *inode)
2447{
2448#ifdef CONFIG_F2FS_FS_ENCRYPTION
2449 file_set_encrypt(inode);
2450#endif
2451}
2452
2453static inline bool f2fs_bio_encrypted(struct bio *bio)
2454{
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002455 return bio->bi_private != NULL;
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002456}
2457
2458static inline int f2fs_sb_has_crypto(struct super_block *sb)
2459{
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002460 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002461}
Jaegeuk Kimf424f662015-04-20 15:19:06 -07002462
Damien Le Moal0bfd7a02016-10-28 17:45:00 +09002463static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb)
Jaegeuk Kim52763a42016-06-13 09:47:48 -07002464{
Damien Le Moal0bfd7a02016-10-28 17:45:00 +09002465 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED);
Jaegeuk Kim52763a42016-06-13 09:47:48 -07002466}
2467
Damien Le Moal178053e2016-10-28 17:45:05 +09002468#ifdef CONFIG_BLK_DEV_ZONED
2469static inline int get_blkz_type(struct f2fs_sb_info *sbi,
Jaegeuk Kim3c62be12016-10-06 19:02:05 -07002470 struct block_device *bdev, block_t blkaddr)
Damien Le Moal178053e2016-10-28 17:45:05 +09002471{
2472 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
Jaegeuk Kim3c62be12016-10-06 19:02:05 -07002473 int i;
Damien Le Moal178053e2016-10-28 17:45:05 +09002474
Jaegeuk Kim3c62be12016-10-06 19:02:05 -07002475 for (i = 0; i < sbi->s_ndevs; i++)
2476 if (FDEV(i).bdev == bdev)
2477 return FDEV(i).blkz_type[zno];
2478 return -EINVAL;
Damien Le Moal178053e2016-10-28 17:45:05 +09002479}
2480#endif
2481
Damien Le Moal96ba2de2016-10-28 17:45:03 +09002482static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
2483{
2484 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
2485
2486 return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb);
Jaegeuk Kim52763a42016-06-13 09:47:48 -07002487}
2488
2489static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2490{
2491 clear_opt(sbi, ADAPTIVE);
2492 clear_opt(sbi, LFS);
2493
2494 switch (mt) {
2495 case F2FS_MOUNT_ADAPTIVE:
2496 set_opt(sbi, ADAPTIVE);
2497 break;
2498 case F2FS_MOUNT_LFS:
2499 set_opt(sbi, LFS);
2500 break;
2501 }
2502}
2503
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07002504static inline bool f2fs_may_encrypt(struct inode *inode)
2505{
2506#ifdef CONFIG_F2FS_FS_ENCRYPTION
Al Viro886f56f2015-12-05 03:56:06 -05002507 umode_t mode = inode->i_mode;
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07002508
2509 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
2510#else
2511 return 0;
2512#endif
2513}
2514
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002515#ifndef CONFIG_F2FS_FS_ENCRYPTION
2516#define fscrypt_set_d_op(i)
2517#define fscrypt_get_ctx fscrypt_notsupp_get_ctx
2518#define fscrypt_release_ctx fscrypt_notsupp_release_ctx
2519#define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page
2520#define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page
2521#define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages
2522#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
2523#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
2524#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
Eric Biggersdb717d82016-11-26 19:07:49 -05002525#define fscrypt_ioctl_set_policy fscrypt_notsupp_ioctl_set_policy
2526#define fscrypt_ioctl_get_policy fscrypt_notsupp_ioctl_get_policy
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002527#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
2528#define fscrypt_inherit_context fscrypt_notsupp_inherit_context
2529#define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info
2530#define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info
2531#define fscrypt_setup_filename fscrypt_notsupp_setup_filename
2532#define fscrypt_free_filename fscrypt_notsupp_free_filename
2533#define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size
2534#define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer
2535#define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer
2536#define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr
2537#define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk
Jaegeuk Kim57e50552015-04-20 19:52:47 -07002538#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002539#endif