blob: 3a1640be7ffc6d7ad6273d35f1169df2688eede9 [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
Jaegeuk Kim52763a42016-06-13 09:47:48 -0700106#define F2FS_FEATURE_HMSMR 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 Kim39a53e02012-11-28 13:37:31 +0900404
Jaegeuk Kimb5492af72015-04-20 13:44:41 -0700405#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
406#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
407#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
408#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
409#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
410#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700411#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
412#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
413#define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
Jaegeuk Kime7d55452015-04-29 17:02:18 -0700414#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
415#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700416
Jaegeuk Kimab9fa662014-02-27 20:09:05 +0900417#define DEF_DIR_LEVEL 0
418
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900419struct f2fs_inode_info {
420 struct inode vfs_inode; /* serve a vfs inode */
421 unsigned long i_flags; /* keep an inode flags for ioctl */
422 unsigned char i_advise; /* use to give file attribute hints */
Jaegeuk Kim38431542014-02-27 18:20:00 +0900423 unsigned char i_dir_level; /* use for dentry level for large dir */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900424 unsigned int i_current_depth; /* use only in directory structure */
Jaegeuk Kim6666e6a2012-12-10 17:52:48 +0900425 unsigned int i_pino; /* parent inode number */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900426 umode_t i_acl_mode; /* keep file acl mode temporarily */
427
428 /* Use below internally in f2fs*/
429 unsigned long flags; /* use to pass per-file flags */
Jaegeuk Kimd928bfb2014-03-20 19:10:08 +0900430 struct rw_semaphore i_sem; /* protect fi info */
Jaegeuk Kima43e1c42016-12-02 15:11:32 -0800431 atomic_t dirty_pages; /* # of dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900432 f2fs_hash_t chash; /* hash value of given file name */
433 unsigned int clevel; /* maximum level of given file name */
Jaegeuk Kimd00d1b72017-02-14 09:54:37 -0800434 struct task_struct *task; /* lookup and create consistency */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900435 nid_t i_xattr_nid; /* node id that contains xattrs */
Jaegeuk Kime518ff82013-08-09 14:46:15 +0900436 unsigned long long xattr_ver; /* cp version of xattr modification */
Jaegeuk Kim26de9b12016-05-20 20:42:37 -0700437 loff_t last_disk_size; /* lastly written file size */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700438
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700439 struct list_head dirty_list; /* dirty list for dirs and files */
440 struct list_head gdirty_list; /* linked in global dirty list */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700441 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
442 struct mutex inmem_lock; /* lock for inmemory pages */
Jaegeuk Kim3e72f722015-06-19 17:53:26 -0700443 struct extent_tree *extent_tree; /* cached extent_tree entry */
Chao Yu82e0a5a2016-07-13 09:18:29 +0800444 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900445};
446
447static inline void get_extent_info(struct extent_info *ext,
Chao Yubd933d42016-05-04 23:19:47 +0800448 struct f2fs_extent *i_ext)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900449{
Chao Yubd933d42016-05-04 23:19:47 +0800450 ext->fofs = le32_to_cpu(i_ext->fofs);
451 ext->blk = le32_to_cpu(i_ext->blk);
452 ext->len = le32_to_cpu(i_ext->len);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900453}
454
455static inline void set_raw_extent(struct extent_info *ext,
456 struct f2fs_extent *i_ext)
457{
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900458 i_ext->fofs = cpu_to_le32(ext->fofs);
Chao Yu4d0b0bd2015-02-05 17:47:25 +0800459 i_ext->blk = cpu_to_le32(ext->blk);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900460 i_ext->len = cpu_to_le32(ext->len);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900461}
462
Chao Yu429511c2015-02-05 17:54:31 +0800463static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
464 u32 blk, unsigned int len)
465{
466 ei->fofs = fofs;
467 ei->blk = blk;
468 ei->len = len;
469}
470
Chao Yu0bdee482015-03-19 19:27:51 +0800471static inline bool __is_extent_same(struct extent_info *ei1,
472 struct extent_info *ei2)
473{
474 return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk &&
475 ei1->len == ei2->len);
476}
477
Chao Yu429511c2015-02-05 17:54:31 +0800478static inline bool __is_extent_mergeable(struct extent_info *back,
479 struct extent_info *front)
480{
481 return (back->fofs + back->len == front->fofs &&
482 back->blk + back->len == front->blk);
483}
484
485static inline bool __is_back_mergeable(struct extent_info *cur,
486 struct extent_info *back)
487{
488 return __is_extent_mergeable(back, cur);
489}
490
491static inline bool __is_front_mergeable(struct extent_info *cur,
492 struct extent_info *front)
493{
494 return __is_extent_mergeable(cur, front);
495}
496
Jaegeuk Kimb56ab832016-06-30 19:09:37 -0700497extern void f2fs_mark_inode_dirty_sync(struct inode *);
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700498static inline void __try_update_largest_extent(struct inode *inode,
499 struct extent_tree *et, struct extent_node *en)
Chao Yu4abd3f52015-09-22 21:07:47 +0800500{
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700501 if (en->ei.len > et->largest.len) {
Chao Yu4abd3f52015-09-22 21:07:47 +0800502 et->largest = en->ei;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -0700503 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700504 }
Chao Yu4abd3f52015-09-22 21:07:47 +0800505}
506
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900507struct f2fs_nm_info {
508 block_t nat_blkaddr; /* base disk address of NAT */
509 nid_t max_nid; /* maximum possible node ids */
Jaegeuk Kim7ee0eea2014-04-18 11:14:37 +0900510 nid_t available_nids; /* maximum available node ids */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900511 nid_t next_scan_nid; /* the next nid to be scanned */
Jaegeuk Kimcdfc41c2014-03-19 13:31:37 +0900512 unsigned int ram_thresh; /* control the memory footprint */
Chao Yuea1a29a02015-10-12 17:08:48 +0800513 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
Chao Yu2304cb02016-01-18 18:32:58 +0800514 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900515
516 /* NAT cache management */
517 struct radix_tree_root nat_root;/* root of the nat entry cache */
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700518 struct radix_tree_root nat_set_root;/* root of the nat set cache */
Jaegeuk Kimb873b792016-08-04 11:38:25 -0700519 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900520 struct list_head nat_entries; /* cached nat entry list (clean) */
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700521 unsigned int nat_cnt; /* the # of cached nat entries */
Chao Yuaec71382014-06-24 09:18:20 +0800522 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900523
524 /* free node ids management */
Jaegeuk Kim8a7ed662014-02-21 14:29:35 +0900525 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900526 struct list_head free_nid_list; /* a list for free nids */
527 spinlock_t free_nid_list_lock; /* protect free nid list */
528 unsigned int fcnt; /* the number of free node id */
529 struct mutex build_lock; /* lock for build free nids */
530
531 /* for checkpoint */
532 char *nat_bitmap; /* NAT bitmap pointer */
533 int bitmap_size; /* bitmap size */
534};
535
536/*
537 * this structure is used as one of function parameters.
538 * all the information are dedicated to a given direct node block determined
539 * by the data offset in a file.
540 */
541struct dnode_of_data {
542 struct inode *inode; /* vfs inode pointer */
543 struct page *inode_page; /* its inode page, NULL is possible */
544 struct page *node_page; /* cached direct node page */
545 nid_t nid; /* node id of the direct node block */
546 unsigned int ofs_in_node; /* data offset in the node page */
547 bool inode_page_locked; /* inode page is locked or not */
Jaegeuk Kim93bae092015-12-22 12:59:54 -0800548 bool node_changed; /* is node block changed */
Chao Yu3cf45742016-01-26 15:40:44 +0800549 char cur_level; /* level of hole node page */
550 char max_level; /* level of current page located */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900551 block_t data_blkaddr; /* block address of the node block */
552};
553
554static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
555 struct page *ipage, struct page *npage, nid_t nid)
556{
Jaegeuk Kimd66d1f72013-01-03 08:57:21 +0900557 memset(dn, 0, sizeof(*dn));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900558 dn->inode = inode;
559 dn->inode_page = ipage;
560 dn->node_page = npage;
561 dn->nid = nid;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900562}
563
564/*
565 * For SIT manager
566 *
567 * By default, there are 6 active log areas across the whole main area.
568 * When considering hot and cold data separation to reduce cleaning overhead,
569 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
570 * respectively.
571 * In the current design, you should not change the numbers intentionally.
572 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
573 * logs individually according to the underlying devices. (default: 6)
574 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
575 * data and 8 for node logs.
576 */
577#define NR_CURSEG_DATA_TYPE (3)
578#define NR_CURSEG_NODE_TYPE (3)
579#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
580
581enum {
582 CURSEG_HOT_DATA = 0, /* directory entry blocks */
583 CURSEG_WARM_DATA, /* data blocks */
584 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
585 CURSEG_HOT_NODE, /* direct node blocks of directory files */
586 CURSEG_WARM_NODE, /* direct node blocks of normal files */
587 CURSEG_COLD_NODE, /* indirect node blocks */
Jaegeuk Kim38aa0882015-01-05 16:02:20 -0800588 NO_CHECK_TYPE,
589 CURSEG_DIRECT_IO, /* to use for the direct IO path */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900590};
591
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900592struct flush_cmd {
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900593 struct completion wait;
Gu Zheng721bd4d2014-09-05 18:31:00 +0800594 struct llist_node llnode;
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900595 int ret;
596};
597
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800598struct flush_cmd_control {
599 struct task_struct *f2fs_issue_flush; /* flush thread */
600 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
Jaegeuk Kim0a87f662016-05-23 12:04:56 -0700601 atomic_t submit_flush; /* # of issued flushes */
Gu Zheng721bd4d2014-09-05 18:31:00 +0800602 struct llist_head issue_list; /* list for command issue */
603 struct llist_node *dispatch_list; /* list for command dispatch */
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800604};
605
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900606struct f2fs_sm_info {
607 struct sit_info *sit_info; /* whole segment information */
608 struct free_segmap_info *free_info; /* free segment information */
609 struct dirty_seglist_info *dirty_info; /* dirty segment information */
610 struct curseg_info *curseg_array; /* active segment information */
611
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900612 block_t seg0_blkaddr; /* block address of 0'th segment */
613 block_t main_blkaddr; /* start block address of main area */
614 block_t ssa_blkaddr; /* start block address of SSA area */
615
616 unsigned int segment_count; /* total # of segments */
617 unsigned int main_segments; /* # of segments in main area */
618 unsigned int reserved_segments; /* # of reserved segments */
619 unsigned int ovp_segments; /* # of overprovision segments */
Jaegeuk Kim81eb8d62013-10-24 13:31:34 +0900620
621 /* a threshold to reclaim prefree segments */
622 unsigned int rec_prefree_segments;
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900623
624 /* for small discard management */
625 struct list_head discard_list; /* 4KB discard list */
Chao Yu275b66b2016-08-29 23:58:34 +0800626 struct list_head wait_list; /* linked with issued discard bio */
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900627 int nr_discards; /* # of discards in the list */
628 int max_discards; /* max. discards to be issued */
Jaegeuk Kim216fbd62013-11-07 13:13:42 +0900629
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800630 /* for batched trimming */
631 unsigned int trim_sections; /* # of sections to trim */
632
Chao Yu184a5cd2014-09-04 18:13:01 +0800633 struct list_head sit_entry_set; /* sit entry set list */
634
Jaegeuk Kim216fbd62013-11-07 13:13:42 +0900635 unsigned int ipu_policy; /* in-place-update policy */
636 unsigned int min_ipu_util; /* in-place-update threshold */
Jaegeuk Kimc1ce1b02014-09-10 16:53:02 -0700637 unsigned int min_fsync_blocks; /* threshold for fsync */
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900638
639 /* for flush command control */
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800640 struct flush_cmd_control *cmd_control_info;
641
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900642};
643
644/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900645 * For superblock
646 */
647/*
648 * COUNT_TYPE for monitoring
649 *
650 * f2fs monitors the number of several block types such as on-writeback,
651 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
652 */
653enum count_type {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900654 F2FS_DIRTY_DENTS,
Chao Yuc227f912015-12-16 13:09:20 +0800655 F2FS_DIRTY_DATA,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900656 F2FS_DIRTY_NODES,
657 F2FS_DIRTY_META,
Jaegeuk Kim8dcf2ff72014-12-05 17:18:15 -0800658 F2FS_INMEM_PAGES,
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700659 F2FS_DIRTY_IMETA,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900660 NR_COUNT_TYPE,
661};
662
663/*
arter97e1c42042014-08-06 23:22:50 +0900664 * The below are the page types of bios used in submit_bio().
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900665 * The available types are:
666 * DATA User data pages. It operates as async mode.
667 * NODE Node pages. It operates as async mode.
668 * META FS metadata pages such as SIT, NAT, CP.
669 * NR_PAGE_TYPE The number of page types.
670 * META_FLUSH Make sure the previous pages are written
671 * with waiting the bio's completion
672 * ... Only can be used with META.
673 */
Jaegeuk Kim7d5e5102013-11-18 17:13:35 +0900674#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900675enum page_type {
676 DATA,
677 NODE,
678 META,
679 NR_PAGE_TYPE,
680 META_FLUSH,
Jaegeuk Kim8ce67cb2015-03-17 17:58:08 -0700681 INMEM, /* the below types are used by tracepoints only. */
682 INMEM_DROP,
Chao Yu28bc1062016-02-06 14:40:34 +0800683 INMEM_REVOKE,
Jaegeuk Kim8ce67cb2015-03-17 17:58:08 -0700684 IPU,
685 OPU,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900686};
687
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900688struct f2fs_io_info {
Jaegeuk Kim05ca3632015-04-23 14:38:15 -0700689 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
Gu Zheng7e8f2302013-12-20 18:17:49 +0800690 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
Mike Christie04d328d2016-06-05 14:31:55 -0500691 int op; /* contains REQ_OP_ */
692 int op_flags; /* rq_flag_bits */
Chao Yu7a9d7542016-02-22 18:36:38 +0800693 block_t new_blkaddr; /* new block address to be written */
Chao Yu28bc1062016-02-06 14:40:34 +0800694 block_t old_blkaddr; /* old block address before Cow */
Jaegeuk Kim05ca3632015-04-23 14:38:15 -0700695 struct page *page; /* page to be written */
Jaegeuk Kim4375a332015-04-23 12:04:33 -0700696 struct page *encrypted_page; /* encrypted page */
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900697};
698
Mike Christie04d328d2016-06-05 14:31:55 -0500699#define is_read_io(rw) (rw == READ)
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900700struct f2fs_bio_info {
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900701 struct f2fs_sb_info *sbi; /* f2fs superblock */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900702 struct bio *bio; /* bios to merge */
703 sector_t last_block_in_bio; /* last block number */
Jaegeuk Kim458e6192013-12-11 13:54:01 +0900704 struct f2fs_io_info fio; /* store buffered io info. */
Chao Yudf0f8dc2014-03-22 14:57:23 +0800705 struct rw_semaphore io_rwsem; /* blocking op for bio */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900706};
707
Chao Yuc227f912015-12-16 13:09:20 +0800708enum inode_type {
709 DIR_INODE, /* for dirty dir inode */
710 FILE_INODE, /* for dirty regular/symlink inode */
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700711 DIRTY_META, /* for all dirtied inode metadata */
Chao Yuc227f912015-12-16 13:09:20 +0800712 NR_INODE_TYPE,
713};
714
Chao Yu67298802014-11-18 11:18:36 +0800715/* for inner inode cache management */
716struct inode_management {
717 struct radix_tree_root ino_root; /* ino entry array */
718 spinlock_t ino_lock; /* for ino entry lock */
719 struct list_head ino_list; /* inode list head */
720 unsigned long ino_num; /* number of entries */
721};
722
Chao Yucaf00472015-01-28 17:48:42 +0800723/* For s_flag in struct f2fs_sb_info */
724enum {
725 SBI_IS_DIRTY, /* dirty flag for checkpoint */
726 SBI_IS_CLOSE, /* specify unmounting */
727 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
728 SBI_POR_DOING, /* recovery is doing or not */
Jaegeuk Kimdf728b02016-03-23 17:05:27 -0700729 SBI_NEED_SB_WRITE, /* need to recover superblock */
Jaegeuk Kimbbf156f2016-08-29 18:23:45 -0700730 SBI_NEED_CP, /* need to checkpoint */
Chao Yucaf00472015-01-28 17:48:42 +0800731};
732
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800733enum {
734 CP_TIME,
Jaegeuk Kimd0239e12016-01-08 16:57:48 -0800735 REQ_TIME,
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800736 MAX_TIME,
737};
738
Jaegeuk Kimb5a7aef2016-05-04 22:05:01 -0700739#ifdef CONFIG_F2FS_FS_ENCRYPTION
740#define F2FS_KEY_DESC_PREFIX "f2fs:"
741#define F2FS_KEY_DESC_PREFIX_SIZE 5
742#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900743struct f2fs_sb_info {
744 struct super_block *sb; /* pointer to VFS super block */
Jaegeuk Kim5e176d52013-06-28 12:47:01 +0900745 struct proc_dir_entry *s_proc; /* proc entry */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900746 struct f2fs_super_block *raw_super; /* raw super block pointer */
Chao Yue8240f62015-12-15 17:19:26 +0800747 int valid_super_block; /* valid super block no */
Chao Yufadb2fb2016-09-20 10:29:47 +0800748 unsigned long s_flag; /* flags for sbi */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900749
Jaegeuk Kimb5a7aef2016-05-04 22:05:01 -0700750#ifdef CONFIG_F2FS_FS_ENCRYPTION
751 u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE];
752 u8 key_prefix_size;
753#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900754 /* for node-related operations */
755 struct f2fs_nm_info *nm_info; /* node manager */
756 struct inode *node_inode; /* cache node blocks */
757
758 /* for segment-related operations */
759 struct f2fs_sm_info *sm_info; /* segment manager */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900760
761 /* for bio operations */
Chao Yu924b7202013-11-20 14:46:39 +0800762 struct f2fs_bio_info read_io; /* for read bios */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +0900763 struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
Jaegeuk Kim7dfeaa32016-06-04 14:21:28 -0700764 struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900765
766 /* for checkpoint */
767 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
Jaegeuk Kim01e15b32016-11-24 12:45:15 -0800768 int cur_cp_pack; /* remain current cp pack */
Chao Yuaaec2b12016-09-20 11:04:18 +0800769 spinlock_t cp_lock; /* for flag in ckpt */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900770 struct inode *meta_inode; /* cache meta blocks */
Jaegeuk Kim39936832012-11-22 16:21:29 +0900771 struct mutex cp_mutex; /* checkpoint procedure lock */
Jaegeuk Kimb873b792016-08-04 11:38:25 -0700772 struct rw_semaphore cp_rwsem; /* blocking FS operations */
Chao Yub3582c62014-07-03 18:58:39 +0800773 struct rw_semaphore node_write; /* locking node writes */
Changman Leefb51b5e2013-11-07 12:48:25 +0900774 wait_queue_head_t cp_wait;
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800775 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
776 long interval_time[MAX_TIME]; /* to store thresholds */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900777
Chao Yu67298802014-11-18 11:18:36 +0800778 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700779
780 /* for orphan inode, use 0'th array */
Gu Zheng0d47c1a2013-12-26 18:24:19 +0800781 unsigned int max_orphans; /* max orphan inodes */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900782
Chao Yuc227f912015-12-16 13:09:20 +0800783 /* for inode management */
784 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
785 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900786
Chao Yu13054c52015-02-05 17:52:58 +0800787 /* for extent tree cache */
788 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
789 struct rw_semaphore extent_tree_lock; /* locking extent radix tree */
790 struct list_head extent_list; /* lru list for shrinker */
791 spinlock_t extent_lock; /* locking extent lru list */
Jaegeuk Kim7441cce2015-12-21 19:20:15 -0800792 atomic_t total_ext_tree; /* extent tree count */
Jaegeuk Kim137d09f2015-12-31 15:02:16 -0800793 struct list_head zombie_list; /* extent zombie tree list */
Jaegeuk Kim74fd8d92015-12-21 19:25:50 -0800794 atomic_t total_zombie_tree; /* extent zombie tree count */
Chao Yu13054c52015-02-05 17:52:58 +0800795 atomic_t total_ext_node; /* extent info count */
796
arter97e1c42042014-08-06 23:22:50 +0900797 /* basic filesystem units */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900798 unsigned int log_sectors_per_block; /* log2 sectors per block */
799 unsigned int log_blocksize; /* log2 block size */
800 unsigned int blocksize; /* block size */
801 unsigned int root_ino_num; /* root inode number*/
802 unsigned int node_ino_num; /* node inode number*/
803 unsigned int meta_ino_num; /* meta inode number*/
804 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
805 unsigned int blocks_per_seg; /* blocks per segment */
806 unsigned int segs_per_sec; /* segments per section */
807 unsigned int secs_per_zone; /* sections per zone */
808 unsigned int total_sections; /* total section count */
809 unsigned int total_node_count; /* total node block count */
810 unsigned int total_valid_node_count; /* valid node block count */
Chao Yue0afc4d2015-12-31 14:35:37 +0800811 loff_t max_file_blocks; /* max block index of file */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900812 int active_logs; /* # of active logs */
Jaegeuk Kimab9fa662014-02-27 20:09:05 +0900813 int dir_level; /* directory level */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900814
815 block_t user_block_count; /* # of user blocks */
816 block_t total_valid_block_count; /* # of valid blocks */
Jaegeuk Kima66cdd92015-04-30 22:37:50 -0700817 block_t discard_blks; /* discard command candidats */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900818 block_t last_valid_block_count; /* for recovery */
819 u32 s_next_generation; /* for NFS support */
Jaegeuk Kimf5730182016-05-17 16:23:36 -0700820 atomic_t nr_wb_bios; /* # of writeback bios */
Jaegeuk Kim523be8a2016-05-13 12:36:58 -0700821
822 /* # of pages, see count_type */
Jaegeuk Kim725ba1a2016-10-20 19:09:57 -0700823 atomic_t nr_pages[NR_COUNT_TYPE];
Jaegeuk Kim41382ec2016-05-16 11:06:50 -0700824 /* # of allocated blocks */
825 struct percpu_counter alloc_valid_block_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900826
Jaegeuk Kim513c5f32016-05-16 11:42:32 -0700827 /* valid inode count */
828 struct percpu_counter total_valid_inode_count;
829
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900830 struct f2fs_mount_info mount_opt; /* mount options */
831
832 /* for cleaning operations */
833 struct mutex gc_mutex; /* mutex for GC */
834 struct f2fs_gc_kthread *gc_thread; /* GC thread */
Jaegeuk Kim5ec4e492013-03-31 13:26:03 +0900835 unsigned int cur_victim_sec; /* current victim section num */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900836
Hou Pengyang4992ba22017-02-16 12:34:31 +0000837 /* threshold for converting bg victims for fg */
838 u64 fggc_threshold;
839
Jaegeuk Kimb1c57c12014-01-08 13:45:08 +0900840 /* maximum # of trials to find a victim segment for SSR and GC */
841 unsigned int max_victim_search;
842
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900843 /*
844 * for stat information.
845 * one is for the LFS mode, and the other is for the SSR mode.
846 */
Namjae Jeon35b09d82013-05-23 22:57:53 +0900847#ifdef CONFIG_F2FS_STAT_FS
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900848 struct f2fs_stat_info *stat_info; /* FS status information */
849 unsigned int segment_count[2]; /* # of allocated segments */
850 unsigned int block_count[2]; /* # of allocated blocks */
Changman Leeb9a2c252014-12-24 02:16:54 +0900851 atomic_t inplace_count; /* # of inplace update */
Chao Yu5b7ee372015-09-30 17:38:48 +0800852 atomic64_t total_hit_ext; /* # of lookup extent cache */
853 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
854 atomic64_t read_hit_largest; /* # of hit largest extent node */
855 atomic64_t read_hit_cached; /* # of hit cached extent node */
Chao Yud5e8f6c2015-07-15 17:28:53 +0800856 atomic_t inline_xattr; /* # of inline_xattr inodes */
Chao Yu03e14d52014-12-08 19:08:20 +0800857 atomic_t inline_inode; /* # of inline_data inodes */
858 atomic_t inline_dir; /* # of inline_dentry inodes */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900859 int bg_gc; /* background gc calls */
Chao Yu33fbd512015-12-17 17:14:44 +0800860 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
Namjae Jeon35b09d82013-05-23 22:57:53 +0900861#endif
862 unsigned int last_victim[2]; /* last victim segment # */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900863 spinlock_t stat_lock; /* lock for stat operations */
Namjae Jeonb59d0ba2013-08-04 23:09:40 +0900864
865 /* For sysfs suppport */
866 struct kobject s_kobj;
867 struct completion s_kobj_unregister;
Jaegeuk Kim2658e502015-06-19 12:01:21 -0700868
869 /* For shrinker support */
870 struct list_head s_list;
871 struct mutex umount_mutex;
872 unsigned int shrinker_run_no;
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +0800873
874 /* For write statistics */
875 u64 sectors_written_start;
876 u64 kbytes_written;
Keith Mok43b65732016-03-02 12:04:24 -0800877
878 /* Reference to checksum algorithm driver via cryptoapi */
879 struct crypto_shash *s_chksum_driver;
Chao Yu1ecc0c52016-09-23 21:30:09 +0800880
881 /* For fault injection */
882#ifdef CONFIG_F2FS_FAULT_INJECTION
883 struct f2fs_fault_info fault_info;
884#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900885};
886
Chao Yu1ecc0c52016-09-23 21:30:09 +0800887#ifdef CONFIG_F2FS_FAULT_INJECTION
888static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
889{
890 struct f2fs_fault_info *ffi = &sbi->fault_info;
891
892 if (!ffi->inject_rate)
893 return false;
894
895 if (!IS_FAULT_SET(ffi, type))
896 return false;
897
898 atomic_inc(&ffi->inject_ops);
899 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
900 atomic_set(&ffi->inject_ops, 0);
901 printk("%sF2FS-fs : inject %s in %pF\n",
902 KERN_INFO,
903 fault_name[type],
904 __builtin_return_address(0));
905 return true;
906 }
907 return false;
908}
909#endif
910
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +0800911/* For write statistics. Suppose sector size is 512 bytes,
912 * and the return value is in kbytes. s is of struct f2fs_sb_info.
913 */
914#define BD_PART_WRITTEN(s) \
915(((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
916 s->sectors_written_start) >> 1)
917
Jaegeuk Kim6beceb52016-01-08 15:51:50 -0800918static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
919{
920 sbi->last_time[type] = jiffies;
921}
922
923static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
924{
925 struct timespec ts = {sbi->interval_time[type], 0};
926 unsigned long interval = timespec_to_jiffies(&ts);
927
928 return time_after(jiffies, sbi->last_time[type] + interval);
929}
930
Jaegeuk Kimd0239e12016-01-08 16:57:48 -0800931static inline bool is_idle(struct f2fs_sb_info *sbi)
932{
933 struct block_device *bdev = sbi->sb->s_bdev;
934 struct request_queue *q = bdev_get_queue(bdev);
935 struct request_list *rl = &q->root_rl;
936
937 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
938 return 0;
939
940 return f2fs_time_over(sbi, REQ_TIME);
941}
942
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900943/*
944 * Inline functions
945 */
Keith Mok43b65732016-03-02 12:04:24 -0800946static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
947 unsigned int length)
948{
949 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
950 u32 *ctx = (u32 *)shash_desc_ctx(shash);
951 int err;
952
953 shash->tfm = sbi->s_chksum_driver;
954 shash->flags = 0;
955 *ctx = F2FS_SUPER_MAGIC;
956
957 err = crypto_shash_update(shash, address, length);
958 BUG_ON(err);
959
960 return *ctx;
961}
962
963static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
964 void *buf, size_t buf_size)
965{
966 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
967}
968
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900969static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
970{
971 return container_of(inode, struct f2fs_inode_info, vfs_inode);
972}
973
974static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
975{
976 return sb->s_fs_info;
977}
978
Jaegeuk Kim40813632014-09-02 15:31:18 -0700979static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
980{
981 return F2FS_SB(inode->i_sb);
982}
983
984static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
985{
986 return F2FS_I_SB(mapping->host);
987}
988
989static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
990{
991 return F2FS_M_SB(page->mapping);
992}
993
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900994static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
995{
996 return (struct f2fs_super_block *)(sbi->raw_super);
997}
998
999static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1000{
1001 return (struct f2fs_checkpoint *)(sbi->ckpt);
1002}
1003
Gu Zheng45590712013-07-15 17:57:38 +08001004static inline struct f2fs_node *F2FS_NODE(struct page *page)
1005{
1006 return (struct f2fs_node *)page_address(page);
1007}
1008
Jaegeuk Kim58bfaf42013-12-26 16:30:41 +09001009static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1010{
1011 return &((struct f2fs_node *)page_address(page))->i;
1012}
1013
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001014static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1015{
1016 return (struct f2fs_nm_info *)(sbi->nm_info);
1017}
1018
1019static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1020{
1021 return (struct f2fs_sm_info *)(sbi->sm_info);
1022}
1023
1024static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1025{
1026 return (struct sit_info *)(SM_I(sbi)->sit_info);
1027}
1028
1029static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1030{
1031 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1032}
1033
1034static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1035{
1036 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1037}
1038
Gu Zheng9df27d92014-01-20 18:37:04 +08001039static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1040{
1041 return sbi->meta_inode->i_mapping;
1042}
1043
Jaegeuk Kim4ef51a82014-01-21 18:51:16 +09001044static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1045{
1046 return sbi->node_inode->i_mapping;
1047}
1048
Chao Yucaf00472015-01-28 17:48:42 +08001049static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001050{
Chao Yufadb2fb2016-09-20 10:29:47 +08001051 return test_bit(type, &sbi->s_flag);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001052}
1053
Chao Yucaf00472015-01-28 17:48:42 +08001054static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001055{
Chao Yufadb2fb2016-09-20 10:29:47 +08001056 set_bit(type, &sbi->s_flag);
Chao Yucaf00472015-01-28 17:48:42 +08001057}
1058
1059static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1060{
Chao Yufadb2fb2016-09-20 10:29:47 +08001061 clear_bit(type, &sbi->s_flag);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001062}
1063
Jaegeuk Kimd71b5562013-08-09 15:03:21 +09001064static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1065{
1066 return le64_to_cpu(cp->checkpoint_ver);
1067}
1068
Chao Yuaaec2b12016-09-20 11:04:18 +08001069static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001070{
1071 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Chao Yuaaec2b12016-09-20 11:04:18 +08001072
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001073 return ckpt_flags & f;
1074}
1075
Chao Yuaaec2b12016-09-20 11:04:18 +08001076static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001077{
Chao Yuaaec2b12016-09-20 11:04:18 +08001078 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1079}
1080
1081static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1082{
1083 unsigned int ckpt_flags;
1084
1085 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001086 ckpt_flags |= f;
1087 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1088}
1089
Chao Yuaaec2b12016-09-20 11:04:18 +08001090static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001091{
Chao Yuaaec2b12016-09-20 11:04:18 +08001092 spin_lock(&sbi->cp_lock);
1093 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1094 spin_unlock(&sbi->cp_lock);
1095}
1096
1097static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1098{
1099 unsigned int ckpt_flags;
1100
1101 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001102 ckpt_flags &= (~f);
1103 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1104}
1105
Chao Yuaaec2b12016-09-20 11:04:18 +08001106static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1107{
1108 spin_lock(&sbi->cp_lock);
1109 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1110 spin_unlock(&sbi->cp_lock);
1111}
1112
Jaegeuk Kim3e025742016-08-02 10:56:40 -07001113static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
1114{
1115 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
1116
1117 return blk_queue_discard(q);
1118}
1119
Gu Zhenge4795562013-09-27 18:08:30 +08001120static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001121{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001122 down_read(&sbi->cp_rwsem);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001123}
1124
Gu Zhenge4795562013-09-27 18:08:30 +08001125static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001126{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001127 up_read(&sbi->cp_rwsem);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001128}
1129
Gu Zhenge4795562013-09-27 18:08:30 +08001130static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
Jaegeuk Kim39936832012-11-22 16:21:29 +09001131{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001132 down_write(&sbi->cp_rwsem);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001133}
1134
Gu Zhenge4795562013-09-27 18:08:30 +08001135static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
Jaegeuk Kim39936832012-11-22 16:21:29 +09001136{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001137 up_write(&sbi->cp_rwsem);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001138}
1139
Jaegeuk Kim119ee912015-01-29 11:45:33 -08001140static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1141{
1142 int reason = CP_SYNC;
1143
1144 if (test_opt(sbi, FASTBOOT))
1145 reason = CP_FASTBOOT;
1146 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1147 reason = CP_UMOUNT;
1148 return reason;
1149}
1150
1151static inline bool __remain_node_summaries(int reason)
1152{
1153 return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
1154}
1155
1156static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1157{
Chao Yuaaec2b12016-09-20 11:04:18 +08001158 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1159 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
Jaegeuk Kim119ee912015-01-29 11:45:33 -08001160}
1161
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001162/*
1163 * Check whether the given nid is within node id range.
1164 */
Namjae Jeon064e0822013-03-17 17:27:20 +09001165static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001166{
Chao Yud6b7d4b2014-06-12 13:23:41 +08001167 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1168 return -EINVAL;
Chao Yucfb271d2013-12-05 17:15:22 +08001169 if (unlikely(nid >= NM_I(sbi)->max_nid))
Namjae Jeon064e0822013-03-17 17:27:20 +09001170 return -EINVAL;
1171 return 0;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001172}
1173
1174#define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1175
1176/*
1177 * Check whether the inode has blocks or not
1178 */
1179static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1180{
1181 if (F2FS_I(inode)->i_xattr_nid)
Chris Fries6c311ec2014-01-17 14:44:39 -06001182 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001183 else
Chris Fries6c311ec2014-01-17 14:44:39 -06001184 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001185}
1186
Chao Yu4bc8e9b2014-03-17 16:35:06 +08001187static inline bool f2fs_has_xattr_block(unsigned int ofs)
1188{
1189 return ofs == XATTR_NODE_OFFSET;
1190}
1191
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001192static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001193static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
Chao Yu46008c62016-05-09 19:56:30 +08001194 struct inode *inode, blkcnt_t *count)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001195{
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001196 blkcnt_t diff;
1197
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001198#ifdef CONFIG_F2FS_FAULT_INJECTION
Chao Yu1ecc0c52016-09-23 21:30:09 +08001199 if (time_to_inject(sbi, FAULT_BLOCK))
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001200 return false;
Jaegeuk Kimcb789422016-04-29 16:29:22 -07001201#endif
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001202 /*
1203 * let's increase this in prior to actual block count change in order
1204 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1205 */
1206 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
Chao Yucfb271d2013-12-05 17:15:22 +08001207
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001208 spin_lock(&sbi->stat_lock);
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001209 sbi->total_valid_block_count += (block_t)(*count);
1210 if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) {
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001211 diff = sbi->total_valid_block_count - sbi->user_block_count;
1212 *count -= diff;
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001213 sbi->total_valid_block_count = sbi->user_block_count;
Chao Yu46008c62016-05-09 19:56:30 +08001214 if (!*count) {
1215 spin_unlock(&sbi->stat_lock);
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001216 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
Chao Yu46008c62016-05-09 19:56:30 +08001217 return false;
1218 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001219 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001220 spin_unlock(&sbi->stat_lock);
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07001221
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001222 f2fs_i_blocks_write(inode, *count, true);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001223 return true;
1224}
1225
Gu Zhengda19b0d2013-11-19 18:03:27 +08001226static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001227 struct inode *inode,
1228 blkcnt_t count)
1229{
1230 spin_lock(&sbi->stat_lock);
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001231 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1232 f2fs_bug_on(sbi, inode->i_blocks < count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001233 sbi->total_valid_block_count -= (block_t)count;
1234 spin_unlock(&sbi->stat_lock);
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001235 f2fs_i_blocks_write(inode, count, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001236}
1237
1238static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1239{
Jaegeuk Kim725ba1a2016-10-20 19:09:57 -07001240 atomic_inc(&sbi->nr_pages[count_type]);
Chao Yu7c4abcb2016-08-18 17:46:14 +08001241
1242 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES)
1243 return;
1244
Chao Yucaf00472015-01-28 17:48:42 +08001245 set_sbi_flag(sbi, SBI_IS_DIRTY);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001246}
1247
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07001248static inline void inode_inc_dirty_pages(struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001249{
Jaegeuk Kima43e1c42016-12-02 15:11:32 -08001250 atomic_inc(&F2FS_I(inode)->dirty_pages);
Chao Yuc227f912015-12-16 13:09:20 +08001251 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1252 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001253}
1254
1255static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1256{
Jaegeuk Kim725ba1a2016-10-20 19:09:57 -07001257 atomic_dec(&sbi->nr_pages[count_type]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001258}
1259
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07001260static inline void inode_dec_dirty_pages(struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001261{
Chao Yu5ac9f362015-06-29 18:14:10 +08001262 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1263 !S_ISLNK(inode->i_mode))
Jaegeuk Kim1fe54f92014-02-07 10:00:06 +09001264 return;
1265
Jaegeuk Kima43e1c42016-12-02 15:11:32 -08001266 atomic_dec(&F2FS_I(inode)->dirty_pages);
Chao Yuc227f912015-12-16 13:09:20 +08001267 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1268 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001269}
1270
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001271static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001272{
Jaegeuk Kim725ba1a2016-10-20 19:09:57 -07001273 return atomic_read(&sbi->nr_pages[count_type]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001274}
1275
Jaegeuk Kima43e1c42016-12-02 15:11:32 -08001276static inline int get_dirty_pages(struct inode *inode)
Jaegeuk Kimf8b2c1f2014-03-18 12:33:06 +09001277{
Jaegeuk Kima43e1c42016-12-02 15:11:32 -08001278 return atomic_read(&F2FS_I(inode)->dirty_pages);
Jaegeuk Kimf8b2c1f2014-03-18 12:33:06 +09001279}
1280
Namjae Jeon5ac206c2013-02-02 23:52:59 +09001281static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1282{
Chao Yu3519e3f2015-12-01 11:56:52 +08001283 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001284 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1285 sbi->log_blocks_per_seg;
1286
1287 return segs / sbi->segs_per_sec;
Namjae Jeon5ac206c2013-02-02 23:52:59 +09001288}
1289
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001290static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1291{
Jaegeuk Kim8b8343f2014-02-24 13:00:13 +09001292 return sbi->total_valid_block_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001293}
1294
Yunlei Hef83a2582016-08-18 21:01:18 +08001295static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1296{
1297 return sbi->discard_blks;
1298}
1299
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001300static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1301{
1302 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1303
1304 /* return NAT or SIT bitmap */
1305 if (flag == NAT_BITMAP)
1306 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1307 else if (flag == SIT_BITMAP)
1308 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1309
1310 return 0;
1311}
1312
Wanpeng Li55141482015-02-26 07:57:20 +08001313static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1314{
1315 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1316}
1317
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001318static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1319{
1320 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
Changman Lee1dbe4152014-05-12 12:27:43 +09001321 int offset;
1322
Wanpeng Li55141482015-02-26 07:57:20 +08001323 if (__cp_payload(sbi) > 0) {
Changman Lee1dbe4152014-05-12 12:27:43 +09001324 if (flag == NAT_BITMAP)
1325 return &ckpt->sit_nat_version_bitmap;
1326 else
Jaegeuk Kim65b85cc2014-07-30 17:25:54 -07001327 return (unsigned char *)ckpt + F2FS_BLKSIZE;
Changman Lee1dbe4152014-05-12 12:27:43 +09001328 } else {
1329 offset = (flag == NAT_BITMAP) ?
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001330 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
Changman Lee1dbe4152014-05-12 12:27:43 +09001331 return &ckpt->sit_nat_version_bitmap + offset;
1332 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001333}
1334
1335static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1336{
Jaegeuk Kim01e15b32016-11-24 12:45:15 -08001337 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001338
Jaegeuk Kim01e15b32016-11-24 12:45:15 -08001339 if (sbi->cur_cp_pack == 2)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001340 start_addr += sbi->blocks_per_seg;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001341 return start_addr;
1342}
1343
Jaegeuk Kim01e15b32016-11-24 12:45:15 -08001344static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1345{
1346 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1347
1348 if (sbi->cur_cp_pack == 1)
1349 start_addr += sbi->blocks_per_seg;
1350 return start_addr;
1351}
1352
1353static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1354{
1355 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1356}
1357
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001358static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1359{
1360 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1361}
1362
1363static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi,
Gu Zhengef86d702013-11-19 18:03:38 +08001364 struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001365{
1366 block_t valid_block_count;
1367 unsigned int valid_node_count;
1368
1369 spin_lock(&sbi->stat_lock);
1370
Gu Zhengef86d702013-11-19 18:03:38 +08001371 valid_block_count = sbi->total_valid_block_count + 1;
Chao Yucfb271d2013-12-05 17:15:22 +08001372 if (unlikely(valid_block_count > sbi->user_block_count)) {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001373 spin_unlock(&sbi->stat_lock);
1374 return false;
1375 }
1376
Gu Zhengef86d702013-11-19 18:03:38 +08001377 valid_node_count = sbi->total_valid_node_count + 1;
Chao Yucfb271d2013-12-05 17:15:22 +08001378 if (unlikely(valid_node_count > sbi->total_node_count)) {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001379 spin_unlock(&sbi->stat_lock);
1380 return false;
1381 }
1382
1383 if (inode)
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001384 f2fs_i_blocks_write(inode, 1, true);
Gu Zhengef86d702013-11-19 18:03:38 +08001385
Gu Zhengef86d702013-11-19 18:03:38 +08001386 sbi->total_valid_node_count++;
1387 sbi->total_valid_block_count++;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001388 spin_unlock(&sbi->stat_lock);
1389
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07001390 percpu_counter_inc(&sbi->alloc_valid_block_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001391 return true;
1392}
1393
1394static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
Gu Zhengef86d702013-11-19 18:03:38 +08001395 struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001396{
1397 spin_lock(&sbi->stat_lock);
1398
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001399 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1400 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1401 f2fs_bug_on(sbi, !inode->i_blocks);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001402
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001403 f2fs_i_blocks_write(inode, 1, false);
Gu Zhengef86d702013-11-19 18:03:38 +08001404 sbi->total_valid_node_count--;
1405 sbi->total_valid_block_count--;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001406
1407 spin_unlock(&sbi->stat_lock);
1408}
1409
1410static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1411{
Jaegeuk Kim8b8343f2014-02-24 13:00:13 +09001412 return sbi->total_valid_node_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001413}
1414
1415static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1416{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001417 percpu_counter_inc(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001418}
1419
Jaegeuk Kim0e802202013-11-26 16:36:20 +09001420static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001421{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001422 percpu_counter_dec(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001423}
1424
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001425static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001426{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001427 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001428}
1429
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07001430static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1431 pgoff_t index, bool for_write)
1432{
Jaegeuk Kimc41f3cc32016-04-29 16:17:09 -07001433#ifdef CONFIG_F2FS_FAULT_INJECTION
1434 struct page *page = find_lock_page(mapping, index);
1435 if (page)
1436 return page;
1437
Chao Yu1ecc0c52016-09-23 21:30:09 +08001438 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC))
Jaegeuk Kimc41f3cc32016-04-29 16:17:09 -07001439 return NULL;
1440#endif
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07001441 if (!for_write)
1442 return grab_cache_page(mapping, index);
1443 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1444}
1445
Jaegeuk Kim6e2c64a2015-10-07 12:28:41 -07001446static inline void f2fs_copy_page(struct page *src, struct page *dst)
1447{
1448 char *src_kaddr = kmap(src);
1449 char *dst_kaddr = kmap(dst);
1450
1451 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1452 kunmap(dst);
1453 kunmap(src);
1454}
1455
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001456static inline void f2fs_put_page(struct page *page, int unlock)
1457{
Jaegeuk Kim031fa8c2013-11-28 12:55:13 +09001458 if (!page)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001459 return;
1460
1461 if (unlock) {
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001462 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001463 unlock_page(page);
1464 }
Kirill A. Shutemov09cbfea2016-04-01 15:29:47 +03001465 put_page(page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001466}
1467
1468static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1469{
1470 if (dn->node_page)
1471 f2fs_put_page(dn->node_page, 1);
1472 if (dn->inode_page && dn->node_page != dn->inode_page)
1473 f2fs_put_page(dn->inode_page, 0);
1474 dn->node_page = NULL;
1475 dn->inode_page = NULL;
1476}
1477
1478static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
Gu Zhenge8512d22014-03-07 18:43:28 +08001479 size_t size)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001480{
Gu Zhenge8512d22014-03-07 18:43:28 +08001481 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001482}
1483
Gu Zheng7bd59382013-10-22 14:52:26 +08001484static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1485 gfp_t flags)
1486{
1487 void *entry;
Gu Zheng7bd59382013-10-22 14:52:26 +08001488
Jaegeuk Kim80c54502015-08-20 08:51:56 -07001489 entry = kmem_cache_alloc(cachep, flags);
1490 if (!entry)
1491 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
Gu Zheng7bd59382013-10-22 14:52:26 +08001492 return entry;
1493}
1494
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001495static inline struct bio *f2fs_bio_alloc(int npages)
1496{
1497 struct bio *bio;
1498
1499 /* No failure on bio allocation */
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001500 bio = bio_alloc(GFP_NOIO, npages);
Jaegeuk Kim80c54502015-08-20 08:51:56 -07001501 if (!bio)
1502 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
Jaegeuk Kim740432f2015-08-14 11:43:56 -07001503 return bio;
1504}
1505
Jaegeuk Kim9be32d72014-12-05 10:39:49 -08001506static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1507 unsigned long index, void *item)
1508{
1509 while (radix_tree_insert(root, index, item))
1510 cond_resched();
1511}
1512
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001513#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1514
1515static inline bool IS_INODE(struct page *page)
1516{
Gu Zheng45590712013-07-15 17:57:38 +08001517 struct f2fs_node *p = F2FS_NODE(page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001518 return RAW_IS_INODE(p);
1519}
1520
1521static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1522{
1523 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1524}
1525
1526static inline block_t datablock_addr(struct page *node_page,
1527 unsigned int offset)
1528{
1529 struct f2fs_node *raw_node;
1530 __le32 *addr_array;
Gu Zheng45590712013-07-15 17:57:38 +08001531 raw_node = F2FS_NODE(node_page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001532 addr_array = blkaddr_in_node(raw_node);
1533 return le32_to_cpu(addr_array[offset]);
1534}
1535
1536static inline int f2fs_test_bit(unsigned int nr, char *addr)
1537{
1538 int mask;
1539
1540 addr += (nr >> 3);
1541 mask = 1 << (7 - (nr & 0x07));
1542 return mask & *addr;
1543}
1544
Jaegeuk Kima66cdd92015-04-30 22:37:50 -07001545static inline void f2fs_set_bit(unsigned int nr, char *addr)
1546{
1547 int mask;
1548
1549 addr += (nr >> 3);
1550 mask = 1 << (7 - (nr & 0x07));
1551 *addr |= mask;
1552}
1553
1554static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1555{
1556 int mask;
1557
1558 addr += (nr >> 3);
1559 mask = 1 << (7 - (nr & 0x07));
1560 *addr &= ~mask;
1561}
1562
Gu Zheng52aca072014-10-20 17:45:51 +08001563static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001564{
1565 int mask;
1566 int ret;
1567
1568 addr += (nr >> 3);
1569 mask = 1 << (7 - (nr & 0x07));
1570 ret = mask & *addr;
1571 *addr |= mask;
1572 return ret;
1573}
1574
Gu Zheng52aca072014-10-20 17:45:51 +08001575static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001576{
1577 int mask;
1578 int ret;
1579
1580 addr += (nr >> 3);
1581 mask = 1 << (7 - (nr & 0x07));
1582 ret = mask & *addr;
1583 *addr &= ~mask;
1584 return ret;
1585}
1586
Gu Zhengc6ac4c02014-10-20 17:45:50 +08001587static inline void f2fs_change_bit(unsigned int nr, char *addr)
1588{
1589 int mask;
1590
1591 addr += (nr >> 3);
1592 mask = 1 << (7 - (nr & 0x07));
1593 *addr ^= mask;
1594}
1595
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001596/* used for f2fs_inode_info->flags */
1597enum {
1598 FI_NEW_INODE, /* indicate newly allocated inode */
Jaegeuk Kimb3783872013-06-10 09:17:01 +09001599 FI_DIRTY_INODE, /* indicate inode is dirty or not */
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001600 FI_AUTO_RECOVER, /* indicate inode is recoverable */
Jaegeuk Kimed57c272014-04-15 11:19:28 +09001601 FI_DIRTY_DIR, /* indicate directory has dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001602 FI_INC_LINK, /* need to increment i_nlink */
1603 FI_ACL_MODE, /* indicate acl mode */
1604 FI_NO_ALLOC, /* should not allocate any blocks */
Jaegeuk Kimc9b63bd2015-06-23 10:36:08 -07001605 FI_FREE_NID, /* free allocated nide */
Jaegeuk Kimc11abd12013-11-19 10:41:54 +09001606 FI_NO_EXTENT, /* not to use the extent cache */
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001607 FI_INLINE_XATTR, /* used for inline xattr */
Huajun Li1001b342013-11-10 23:13:16 +08001608 FI_INLINE_DATA, /* used for inline data*/
Chao Yu34d67de2014-09-24 18:15:19 +08001609 FI_INLINE_DENTRY, /* used for inline dentry */
Jaegeuk Kimfff04f92014-07-25 07:40:59 -07001610 FI_APPEND_WRITE, /* inode has appended data */
1611 FI_UPDATE_WRITE, /* inode has in-place-update data */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001612 FI_NEED_IPU, /* used for ipu per file */
1613 FI_ATOMIC_FILE, /* indicate atomic file */
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001614 FI_VOLATILE_FILE, /* indicate volatile file */
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001615 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001616 FI_DROP_CACHE, /* drop dirty page cache */
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001617 FI_DATA_EXIST, /* indicate data exists */
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001618 FI_INLINE_DOTS, /* indicate inline dot dentries */
Chao Yud323d002015-10-27 09:53:45 +08001619 FI_DO_DEFRAG, /* indicate defragment is running */
Chao Yuc227f912015-12-16 13:09:20 +08001620 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001621};
1622
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001623static inline void __mark_inode_dirty_flag(struct inode *inode,
1624 int flag, bool set)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001625{
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001626 switch (flag) {
1627 case FI_INLINE_XATTR:
1628 case FI_INLINE_DATA:
1629 case FI_INLINE_DENTRY:
1630 if (set)
1631 return;
1632 case FI_DATA_EXIST:
1633 case FI_INLINE_DOTS:
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001634 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001635 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001636}
1637
Jaegeuk Kim91942322016-05-20 10:13:22 -07001638static inline void set_inode_flag(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001639{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001640 if (!test_bit(flag, &F2FS_I(inode)->flags))
1641 set_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001642 __mark_inode_dirty_flag(inode, flag, true);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001643}
1644
Jaegeuk Kim91942322016-05-20 10:13:22 -07001645static inline int is_inode_flag_set(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001646{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001647 return test_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001648}
1649
Jaegeuk Kim91942322016-05-20 10:13:22 -07001650static inline void clear_inode_flag(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001651{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001652 if (test_bit(flag, &F2FS_I(inode)->flags))
1653 clear_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001654 __mark_inode_dirty_flag(inode, flag, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001655}
1656
Jaegeuk Kim91942322016-05-20 10:13:22 -07001657static inline void set_acl_inode(struct inode *inode, umode_t mode)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001658{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001659 F2FS_I(inode)->i_acl_mode = mode;
1660 set_inode_flag(inode, FI_ACL_MODE);
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001661 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001662}
1663
Jaegeuk Kima1961242016-05-20 09:43:20 -07001664static inline void f2fs_i_links_write(struct inode *inode, bool inc)
1665{
1666 if (inc)
1667 inc_nlink(inode);
1668 else
1669 drop_nlink(inode);
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001670 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kima1961242016-05-20 09:43:20 -07001671}
1672
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001673static inline void f2fs_i_blocks_write(struct inode *inode,
1674 blkcnt_t diff, bool add)
1675{
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001676 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1677 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1678
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001679 inode->i_blocks = add ? inode->i_blocks + diff :
1680 inode->i_blocks - diff;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001681 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001682 if (clean || recover)
1683 set_inode_flag(inode, FI_AUTO_RECOVER);
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07001684}
1685
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07001686static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
1687{
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001688 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1689 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1690
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07001691 if (i_size_read(inode) == i_size)
1692 return;
1693
1694 i_size_write(inode, i_size);
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001695 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07001696 if (clean || recover)
1697 set_inode_flag(inode, FI_AUTO_RECOVER);
1698}
1699
1700static inline bool f2fs_skip_inode_update(struct inode *inode)
1701{
1702 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER))
1703 return false;
1704 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07001705}
1706
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001707static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
1708{
1709 F2FS_I(inode)->i_current_depth = depth;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001710 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001711}
1712
1713static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
1714{
1715 F2FS_I(inode)->i_xattr_nid = xnid;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001716 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001717}
1718
1719static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
1720{
1721 F2FS_I(inode)->i_pino = pino;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001722 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001723}
1724
Jaegeuk Kim91942322016-05-20 10:13:22 -07001725static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001726{
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001727 struct f2fs_inode_info *fi = F2FS_I(inode);
1728
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001729 if (ri->i_inline & F2FS_INLINE_XATTR)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001730 set_bit(FI_INLINE_XATTR, &fi->flags);
Huajun Li1001b342013-11-10 23:13:16 +08001731 if (ri->i_inline & F2FS_INLINE_DATA)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001732 set_bit(FI_INLINE_DATA, &fi->flags);
Chao Yu34d67de2014-09-24 18:15:19 +08001733 if (ri->i_inline & F2FS_INLINE_DENTRY)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001734 set_bit(FI_INLINE_DENTRY, &fi->flags);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001735 if (ri->i_inline & F2FS_DATA_EXIST)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001736 set_bit(FI_DATA_EXIST, &fi->flags);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001737 if (ri->i_inline & F2FS_INLINE_DOTS)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07001738 set_bit(FI_INLINE_DOTS, &fi->flags);
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001739}
1740
Jaegeuk Kim91942322016-05-20 10:13:22 -07001741static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001742{
1743 ri->i_inline = 0;
1744
Jaegeuk Kim91942322016-05-20 10:13:22 -07001745 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001746 ri->i_inline |= F2FS_INLINE_XATTR;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001747 if (is_inode_flag_set(inode, FI_INLINE_DATA))
Huajun Li1001b342013-11-10 23:13:16 +08001748 ri->i_inline |= F2FS_INLINE_DATA;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001749 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
Chao Yu34d67de2014-09-24 18:15:19 +08001750 ri->i_inline |= F2FS_INLINE_DENTRY;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001751 if (is_inode_flag_set(inode, FI_DATA_EXIST))
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001752 ri->i_inline |= F2FS_DATA_EXIST;
Jaegeuk Kim91942322016-05-20 10:13:22 -07001753 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001754 ri->i_inline |= F2FS_INLINE_DOTS;
Jaegeuk Kim444c5802013-08-08 15:16:22 +09001755}
1756
Chao Yu987c7c32014-03-12 15:59:03 +08001757static inline int f2fs_has_inline_xattr(struct inode *inode)
1758{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001759 return is_inode_flag_set(inode, FI_INLINE_XATTR);
Chao Yu987c7c32014-03-12 15:59:03 +08001760}
1761
Chao Yu81ca7352016-01-26 15:39:35 +08001762static inline unsigned int addrs_per_inode(struct inode *inode)
Jaegeuk Kimde936532013-08-12 21:08:03 +09001763{
Chao Yu81ca7352016-01-26 15:39:35 +08001764 if (f2fs_has_inline_xattr(inode))
Jaegeuk Kimde936532013-08-12 21:08:03 +09001765 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1766 return DEF_ADDRS_PER_INODE;
1767}
1768
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001769static inline void *inline_xattr_addr(struct page *page)
1770{
Chao Yu695fd1e2014-02-27 19:52:21 +08001771 struct f2fs_inode *ri = F2FS_INODE(page);
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001772 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
1773 F2FS_INLINE_XATTR_ADDRS]);
1774}
1775
1776static inline int inline_xattr_size(struct inode *inode)
1777{
Chao Yu987c7c32014-03-12 15:59:03 +08001778 if (f2fs_has_inline_xattr(inode))
Jaegeuk Kim65985d92013-08-14 21:57:27 +09001779 return F2FS_INLINE_XATTR_ADDRS << 2;
1780 else
1781 return 0;
1782}
1783
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09001784static inline int f2fs_has_inline_data(struct inode *inode)
1785{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001786 return is_inode_flag_set(inode, FI_INLINE_DATA);
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09001787}
1788
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001789static inline void f2fs_clear_inline_inode(struct inode *inode)
1790{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001791 clear_inode_flag(inode, FI_INLINE_DATA);
1792 clear_inode_flag(inode, FI_DATA_EXIST);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001793}
1794
1795static inline int f2fs_exist_data(struct inode *inode)
1796{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001797 return is_inode_flag_set(inode, FI_DATA_EXIST);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07001798}
1799
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001800static inline int f2fs_has_inline_dots(struct inode *inode)
1801{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001802 return is_inode_flag_set(inode, FI_INLINE_DOTS);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001803}
1804
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001805static inline bool f2fs_is_atomic_file(struct inode *inode)
1806{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001807 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07001808}
1809
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001810static inline bool f2fs_is_volatile_file(struct inode *inode)
1811{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001812 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
Jaegeuk Kim02a13352014-10-06 16:11:16 -07001813}
1814
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001815static inline bool f2fs_is_first_block_written(struct inode *inode)
1816{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001817 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07001818}
1819
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001820static inline bool f2fs_is_drop_cache(struct inode *inode)
1821{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001822 return is_inode_flag_set(inode, FI_DROP_CACHE);
Jaegeuk Kim1e843712014-12-09 06:08:59 -08001823}
1824
Huajun Li1001b342013-11-10 23:13:16 +08001825static inline void *inline_data_addr(struct page *page)
1826{
Chao Yu695fd1e2014-02-27 19:52:21 +08001827 struct f2fs_inode *ri = F2FS_INODE(page);
Huajun Li1001b342013-11-10 23:13:16 +08001828 return (void *)&(ri->i_addr[1]);
1829}
1830
Chao Yu34d67de2014-09-24 18:15:19 +08001831static inline int f2fs_has_inline_dentry(struct inode *inode)
1832{
Jaegeuk Kim91942322016-05-20 10:13:22 -07001833 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
Chao Yu34d67de2014-09-24 18:15:19 +08001834}
1835
Jaegeuk Kim9486ba4422014-11-21 16:36:28 -08001836static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
1837{
1838 if (!f2fs_has_inline_dentry(dir))
1839 kunmap(page);
1840}
1841
Jaegeuk Kimb5492af72015-04-20 13:44:41 -07001842static inline int is_file(struct inode *inode, int type)
1843{
1844 return F2FS_I(inode)->i_advise & type;
1845}
1846
1847static inline void set_file(struct inode *inode, int type)
1848{
1849 F2FS_I(inode)->i_advise |= type;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001850 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kimb5492af72015-04-20 13:44:41 -07001851}
1852
1853static inline void clear_file(struct inode *inode, int type)
1854{
1855 F2FS_I(inode)->i_advise &= ~type;
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07001856 f2fs_mark_inode_dirty_sync(inode);
Jaegeuk Kimb5492af72015-04-20 13:44:41 -07001857}
1858
Jaegeuk Kim77888c12013-05-20 20:28:47 +09001859static inline int f2fs_readonly(struct super_block *sb)
1860{
1861 return sb->s_flags & MS_RDONLY;
1862}
1863
Jaegeuk Kim1e968fd2014-08-11 16:49:25 -07001864static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
1865{
Chao Yuaaec2b12016-09-20 11:04:18 +08001866 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
Jaegeuk Kim1e968fd2014-08-11 16:49:25 -07001867}
1868
Jaegeuk Kimeaa693f2015-04-26 00:15:29 -07001869static inline bool is_dot_dotdot(const struct qstr *str)
1870{
1871 if (str->len == 1 && str->name[0] == '.')
1872 return true;
1873
1874 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
1875 return true;
1876
1877 return false;
1878}
1879
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001880static inline bool f2fs_may_extent_tree(struct inode *inode)
1881{
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001882 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
Jaegeuk Kim91942322016-05-20 10:13:22 -07001883 is_inode_flag_set(inode, FI_NO_EXTENT))
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001884 return false;
1885
Al Viro886f56f2015-12-05 03:56:06 -05001886 return S_ISREG(inode->i_mode);
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07001887}
1888
Chao Yu1ecc0c52016-09-23 21:30:09 +08001889static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
1890 size_t size, gfp_t flags)
Jaegeuk Kim0414b002016-04-29 15:16:42 -07001891{
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -07001892#ifdef CONFIG_F2FS_FAULT_INJECTION
Chao Yu1ecc0c52016-09-23 21:30:09 +08001893 if (time_to_inject(sbi, FAULT_KMALLOC))
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -07001894 return NULL;
1895#endif
Jaegeuk Kim0414b002016-04-29 15:16:42 -07001896 return kmalloc(size, flags);
1897}
1898
Jaegeuk Kim39307a82015-09-22 13:50:47 -07001899static inline void *f2fs_kvmalloc(size_t size, gfp_t flags)
1900{
1901 void *ret;
1902
1903 ret = kmalloc(size, flags | __GFP_NOWARN);
1904 if (!ret)
1905 ret = __vmalloc(size, flags, PAGE_KERNEL);
1906 return ret;
1907}
1908
1909static inline void *f2fs_kvzalloc(size_t size, gfp_t flags)
1910{
1911 void *ret;
1912
1913 ret = kzalloc(size, flags | __GFP_NOWARN);
1914 if (!ret)
1915 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
1916 return ret;
1917}
1918
Christoph Hellwiga6dda0e2013-12-20 05:16:45 -08001919#define get_inode_mode(i) \
Jaegeuk Kim91942322016-05-20 10:13:22 -07001920 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
Christoph Hellwiga6dda0e2013-12-20 05:16:45 -08001921 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
1922
Chao Yu267378d2014-04-23 14:10:24 +08001923/* get offset of first page in next direct node */
Chao Yu81ca7352016-01-26 15:39:35 +08001924#define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
1925 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
1926 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
1927 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
Chao Yu267378d2014-04-23 14:10:24 +08001928
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001929/*
1930 * file.c
1931 */
1932int f2fs_sync_file(struct file *, loff_t, loff_t, int);
1933void truncate_data_blocks(struct dnode_of_data *);
Jaegeuk Kim764aa3e2014-08-14 16:32:54 -07001934int truncate_blocks(struct inode *, u64, bool);
Jaegeuk Kim9a449e92016-06-02 13:49:38 -07001935int f2fs_truncate(struct inode *);
Jaegeuk Kim2d4d9fb52013-06-07 16:33:07 +09001936int f2fs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001937int f2fs_setattr(struct dentry *, struct iattr *);
1938int truncate_hole(struct inode *, pgoff_t, pgoff_t);
Jaegeuk Kimb292dcab2013-05-22 08:02:02 +09001939int truncate_data_blocks_range(struct dnode_of_data *, int);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001940long f2fs_ioctl(struct file *, unsigned int, unsigned long);
Namjae Jeone9750822013-02-04 23:41:41 +09001941long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001942
1943/*
1944 * inode.c
1945 */
1946void f2fs_set_inode_flags(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001947struct inode *f2fs_iget(struct super_block *, unsigned long);
Jaegeuk Kime8ea9b32016-09-09 16:59:39 -07001948struct inode *f2fs_iget_retry(struct super_block *, unsigned long);
Jaegeuk Kim4660f9c2013-10-24 14:19:18 +09001949int try_to_free_nats(struct f2fs_sb_info *, int);
Jaegeuk Kim12719ae2016-01-07 13:23:12 -08001950int update_inode(struct inode *, struct page *);
1951int update_inode_page(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001952int f2fs_write_inode(struct inode *, struct writeback_control *);
1953void f2fs_evict_inode(struct inode *);
Jaegeuk Kim44c16152014-09-25 11:55:53 -07001954void handle_failed_inode(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001955
1956/*
1957 * namei.c
1958 */
1959struct dentry *f2fs_get_parent(struct dentry *child);
1960
1961/*
1962 * dir.c
1963 */
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001964void set_de_type(struct f2fs_dir_entry *, umode_t);
Chao Yu675f10b2016-02-22 18:29:18 +08001965unsigned char get_de_type(struct f2fs_dir_entry *);
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07001966struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *,
Jaegeuk Kim6e22c692015-04-27 17:12:39 -07001967 f2fs_hash_t, int *, struct f2fs_dentry_ptr *);
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -07001968bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07001969 unsigned int, struct fscrypt_str *);
Jaegeuk Kim062a3e72014-10-18 23:06:41 -07001970void do_make_empty_dir(struct inode *, struct inode *,
1971 struct f2fs_dentry_ptr *);
Chao Yudbeacf02014-09-24 18:17:04 +08001972struct page *init_inode_metadata(struct inode *, struct inode *,
Chao Yu9421d572016-08-28 18:57:55 +08001973 const struct qstr *, const struct qstr *, struct page *);
Chao Yudbeacf02014-09-24 18:17:04 +08001974void update_parent_metadata(struct inode *, struct inode *, unsigned int);
Jaegeuk Kima82afa22014-10-13 16:28:13 -07001975int room_for_filename(const void *, int, int);
Jaegeuk Kim9f7c45c2016-06-01 21:18:25 -07001976void f2fs_drop_nlink(struct inode *, struct inode *);
Shuoran Liue7ba1082016-08-29 11:27:56 +08001977struct f2fs_dir_entry *__f2fs_find_entry(struct inode *, struct fscrypt_name *,
1978 struct page **);
Al Viro185de682016-07-20 23:07:13 -04001979struct f2fs_dir_entry *f2fs_find_entry(struct inode *, const struct qstr *,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001980 struct page **);
1981struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **);
Linus Torvalds835c92d2016-08-06 09:49:02 -04001982ino_t f2fs_inode_by_name(struct inode *, const struct qstr *, struct page **);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001983void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
1984 struct page *, struct inode *);
Jaegeuk Kime7d55452015-04-29 17:02:18 -07001985int update_dent_inode(struct inode *, struct inode *, const struct qstr *);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001986void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *,
Chao Yu3b4d7322015-02-16 16:17:20 +08001987 const struct qstr *, f2fs_hash_t , unsigned int);
Chao Yu675f10b2016-02-22 18:29:18 +08001988int f2fs_add_regular_entry(struct inode *, const struct qstr *,
Chao Yu9421d572016-08-28 18:57:55 +08001989 const struct qstr *, struct inode *, nid_t, umode_t);
Shuoran Liue7ba1082016-08-29 11:27:56 +08001990int __f2fs_do_add_link(struct inode *, struct fscrypt_name*, struct inode *,
1991 nid_t, umode_t);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07001992int __f2fs_add_link(struct inode *, const struct qstr *, struct inode *, nid_t,
1993 umode_t);
Chao Yudbeacf02014-09-24 18:17:04 +08001994void f2fs_delete_entry(struct f2fs_dir_entry *, struct page *, struct inode *,
1995 struct inode *);
Jaegeuk Kimb97a9b52014-06-20 21:37:02 -07001996int f2fs_do_tmpfile(struct inode *, struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001997bool f2fs_empty_dir(struct inode *);
1998
Al Virob7f7a5e2013-01-25 16:15:43 -05001999static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2000{
David Howells2b0143b2015-03-17 22:25:59 +00002001 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002002 inode, inode->i_ino, inode->i_mode);
Al Virob7f7a5e2013-01-25 16:15:43 -05002003}
2004
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002005/*
2006 * super.c
2007 */
Jaegeuk Kimb56ab832016-06-30 19:09:37 -07002008int f2fs_inode_dirtied(struct inode *);
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07002009void f2fs_inode_synced(struct inode *);
Chao Yuc5bda1c2015-06-08 13:28:03 +08002010int f2fs_commit_super(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002011int f2fs_sync_fs(struct super_block *, int);
Namjae Jeona07ef782012-12-30 14:52:05 +09002012extern __printf(3, 4)
2013void f2fs_msg(struct super_block *, const char *, const char *, ...);
Shawn Lin984ec632016-02-17 11:26:32 +08002014int sanity_check_ckpt(struct f2fs_sb_info *sbi);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002015
2016/*
2017 * hash.c
2018 */
Gu Zhengeee61602014-06-24 18:21:23 +08002019f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002020
2021/*
2022 * node.c
2023 */
2024struct dnode_of_data;
2025struct node_info;
2026
Jaegeuk Kim6fb03f32014-04-16 10:47:06 +09002027bool available_free_memory(struct f2fs_sb_info *, int);
Jaegeuk Kim2dcf51a2015-04-29 18:31:19 -07002028int need_dentry_mark(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim88bd02c2014-09-15 14:50:48 -07002029bool is_checkpointed_node(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim88bd02c2014-09-15 14:50:48 -07002030bool need_inode_block_update(struct f2fs_sb_info *, nid_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002031void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
Chao Yu3cf45742016-01-26 15:40:44 +08002032pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002033int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
2034int truncate_inode_blocks(struct inode *, pgoff_t);
Jaegeuk Kim4f16fb02013-08-14 20:40:06 +09002035int truncate_xattr_node(struct inode *, struct page *);
Jaegeuk Kimcfe58f92013-10-31 14:57:01 +09002036int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
Chao Yu13ec7292015-08-24 17:40:45 +08002037int remove_inode_page(struct inode *);
Jaegeuk Kima014e032014-06-20 21:44:02 -07002038struct page *new_inode_page(struct inode *);
Jaegeuk Kim8ae8f162013-06-03 19:46:19 +09002039struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002040void ra_node_page(struct f2fs_sb_info *, nid_t);
2041struct page *get_node_page(struct f2fs_sb_info *, pgoff_t);
2042struct page *get_node_page_ra(struct page *, int);
Chao Yuda011cc2016-04-27 21:40:15 +08002043void move_node_page(struct page *, int);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07002044int fsync_node_pages(struct f2fs_sb_info *, struct inode *,
2045 struct writeback_control *, bool);
Jaegeuk Kim52681372016-04-13 16:24:44 -07002046int sync_node_pages(struct f2fs_sb_info *, struct writeback_control *);
Jaegeuk Kimad4edb82016-06-16 16:41:49 -07002047void build_free_nids(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002048bool alloc_nid(struct f2fs_sb_info *, nid_t *);
2049void alloc_nid_done(struct f2fs_sb_info *, nid_t);
2050void alloc_nid_failed(struct f2fs_sb_info *, nid_t);
Chao Yu31696582015-07-28 18:33:46 +08002051int try_to_free_nids(struct f2fs_sb_info *, int);
Chao Yu70cfed82014-08-02 15:26:04 +08002052void recover_inline_xattr(struct inode *, struct page *);
Jaegeuk Kim1c35a902014-08-07 23:49:17 -07002053void recover_xattr_data(struct inode *, struct page *, block_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002054int recover_inode_page(struct f2fs_sb_info *, struct page *);
2055int restore_node_summary(struct f2fs_sb_info *, unsigned int,
2056 struct f2fs_summary_block *);
2057void flush_nat_entries(struct f2fs_sb_info *);
2058int build_node_manager(struct f2fs_sb_info *);
2059void destroy_node_manager(struct f2fs_sb_info *);
Namjae Jeon6e6093a2013-01-17 00:08:30 +09002060int __init create_node_manager_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002061void destroy_node_manager_caches(void);
2062
2063/*
2064 * segment.c
2065 */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07002066void register_inmem_page(struct inode *, struct page *);
Chao Yu29b96b52016-02-06 14:38:29 +08002067void drop_inmem_pages(struct inode *);
2068int commit_inmem_pages(struct inode *);
Jaegeuk Kim2c4db1a2016-01-07 14:15:04 -08002069void f2fs_balance_fs(struct f2fs_sb_info *, bool);
Jaegeuk Kim4660f9c2013-10-24 14:19:18 +09002070void f2fs_balance_fs_bg(struct f2fs_sb_info *);
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +09002071int f2fs_issue_flush(struct f2fs_sb_info *);
Gu Zheng2163d192014-04-27 14:21:33 +08002072int create_flush_cmd_control(struct f2fs_sb_info *);
2073void destroy_flush_cmd_control(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002074void invalidate_blocks(struct f2fs_sb_info *, block_t);
Jaegeuk Kim6e2c64a2015-10-07 12:28:41 -07002075bool is_checkpointed_data(struct f2fs_sb_info *, block_t);
Jaegeuk Kim5e443812014-01-28 12:22:14 +09002076void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);
Chao Yu275b66b2016-08-29 23:58:34 +08002077void f2fs_wait_all_discard_bio(struct f2fs_sb_info *);
Jaegeuk Kim836b5a62015-04-30 22:50:06 -07002078void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002079void release_discard_addrs(struct f2fs_sb_info *);
Chao Yu3fa06d72014-12-09 14:21:46 +08002080int npages_for_summary_flush(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002081void allocate_new_segments(struct f2fs_sb_info *);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002082int f2fs_trim_fs(struct f2fs_sb_info *, struct fstrim_range *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002083struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);
Chao Yu381722d2015-05-19 17:40:04 +08002084void update_meta_page(struct f2fs_sb_info *, void *, block_t);
Jaegeuk Kim577e3492013-01-24 19:56:11 +09002085void write_meta_page(struct f2fs_sb_info *, struct page *);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002086void write_node_page(unsigned int, struct f2fs_io_info *);
2087void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
2088void rewrite_data_page(struct f2fs_io_info *);
Chao Yu4356e482016-02-23 17:52:43 +08002089void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *,
2090 block_t, block_t, bool, bool);
Chao Yu528e3452015-05-28 19:15:35 +08002091void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *,
Chao Yu28bc1062016-02-06 14:40:34 +08002092 block_t, block_t, unsigned char, bool, bool);
Jaegeuk Kimbfad7c22013-12-16 19:04:05 +09002093void allocate_data_block(struct f2fs_sb_info *, struct page *,
2094 block_t, block_t *, struct f2fs_summary *, int);
Jaegeuk Kimfec1d652016-01-20 23:43:51 +08002095void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool);
Chao Yu08b39fb2015-10-08 13:27:34 +08002096void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002097void write_data_summaries(struct f2fs_sb_info *, block_t);
2098void write_node_summaries(struct f2fs_sb_info *, block_t);
Chao Yudfc08a12016-02-14 18:50:40 +08002099int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int);
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -07002100void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002101int build_segment_manager(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002102void destroy_segment_manager(struct f2fs_sb_info *);
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +09002103int __init create_segment_manager_caches(void);
2104void destroy_segment_manager_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002105
2106/*
2107 * checkpoint.c
2108 */
Jaegeuk Kim38f91ca2016-05-18 14:07:56 -07002109void f2fs_stop_checkpoint(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002110struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t);
2111struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t);
Chao Yu2b947002015-10-12 17:04:21 +08002112struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t);
Chao Yuf0c9cad2015-04-18 18:05:36 +08002113bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int);
Chao Yu26879fb2015-10-12 17:05:59 +08002114int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool);
Chao Yu635aee12014-12-08 15:02:52 +08002115void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002116long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long);
Chao Yua49324f2015-12-15 13:29:47 +08002117void add_ino_entry(struct f2fs_sb_info *, nid_t, int type);
2118void remove_ino_entry(struct f2fs_sb_info *, nid_t, int type);
Jaegeuk Kim74ef9242016-05-02 22:09:56 -07002119void release_ino_entry(struct f2fs_sb_info *, bool);
Jaegeuk Kimfff04f92014-07-25 07:40:59 -07002120bool exist_written_data(struct f2fs_sb_info *, nid_t, int);
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07002121int f2fs_sync_inode_meta(struct f2fs_sb_info *);
Jaegeuk Kimcbd56e72013-07-30 11:36:53 +09002122int acquire_orphan_inode(struct f2fs_sb_info *);
2123void release_orphan_inode(struct f2fs_sb_info *);
Jaegeuk Kim67c37582016-06-13 18:27:02 -07002124void add_orphan_inode(struct inode *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002125void remove_orphan_inode(struct f2fs_sb_info *, nid_t);
Chao Yu8c14bfa2015-08-07 17:58:43 +08002126int recover_orphan_inodes(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002127int get_valid_checkpoint(struct f2fs_sb_info *);
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07002128void update_dirty_page(struct inode *, struct page *);
Chao Yuc227f912015-12-16 13:09:20 +08002129void remove_dirty_inode(struct inode *);
Chao Yu6d5a1492015-12-24 18:04:56 +08002130int sync_dirty_inodes(struct f2fs_sb_info *, enum inode_type);
Chao Yuc34f42e2015-12-23 17:50:30 +08002131int write_checkpoint(struct f2fs_sb_info *, struct cp_control *);
Jaegeuk Kim6451e042014-07-25 15:47:17 -07002132void init_ino_entry_info(struct f2fs_sb_info *);
Namjae Jeon6e6093a2013-01-17 00:08:30 +09002133int __init create_checkpoint_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002134void destroy_checkpoint_caches(void);
2135
2136/*
2137 * data.c
2138 */
Jaegeuk Kim458e6192013-12-11 13:54:01 +09002139void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
Chao Yu0c3a5792016-01-18 18:28:11 +08002140void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *,
2141 struct page *, nid_t, enum page_type, int);
Chao Yu406657d2016-02-24 17:17:55 +08002142void f2fs_flush_merged_bios(struct f2fs_sb_info *);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002143int f2fs_submit_page_bio(struct f2fs_io_info *);
2144void f2fs_submit_page_mbio(struct f2fs_io_info *);
Chao Yu216a6202015-03-19 19:23:32 +08002145void set_data_blkaddr(struct dnode_of_data *);
Chao Yuf28b3432016-02-24 17:16:47 +08002146void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t);
Chao Yu46008c62016-05-09 19:56:30 +08002147int reserve_new_blocks(struct dnode_of_data *, blkcnt_t);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002148int reserve_new_block(struct dnode_of_data *);
Fan Li759af1c2015-08-05 15:52:16 +08002149int f2fs_get_block(struct dnode_of_data *, pgoff_t);
Jaegeuk Kimb439b102016-02-03 13:09:09 -08002150ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *);
Huajun Lib6009652013-11-10 23:13:18 +08002151int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07002152struct page *get_read_data_page(struct inode *, pgoff_t, int, bool);
Jaegeuk Kim43f3eae2015-04-30 17:00:33 -07002153struct page *find_data_page(struct inode *, pgoff_t);
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07002154struct page *get_lock_data_page(struct inode *, pgoff_t, bool);
Jaegeuk Kim64aa7ed2013-05-20 09:55:50 +09002155struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07002156int do_write_data_page(struct f2fs_io_info *);
Chao Yud323d002015-10-27 09:53:45 +08002157int f2fs_map_blocks(struct inode *, struct f2fs_map_blocks *, int, int);
Jaegeuk Kim9ab70132014-06-08 04:30:14 +09002158int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
Jaegeuk Kimfe76b792016-06-30 18:40:10 -07002159void f2fs_set_page_dirty_nobuffers(struct page *);
Chao Yu487261f2015-02-05 17:44:29 +08002160void f2fs_invalidate_page(struct page *, unsigned int, unsigned int);
2161int f2fs_release_page(struct page *, gfp_t);
Weichao Guo5b7a4872016-09-20 05:03:27 +08002162#ifdef CONFIG_MIGRATION
2163int f2fs_migrate_page(struct address_space *, struct page *, struct page *,
2164 enum migrate_mode);
2165#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002166
2167/*
2168 * gc.c
2169 */
2170int start_gc_thread(struct f2fs_sb_info *);
2171void stop_gc_thread(struct f2fs_sb_info *);
Chao Yu81ca7352016-01-26 15:39:35 +08002172block_t start_bidx_of_node(unsigned int, struct inode *);
Chao Yud530d4d2015-10-05 22:22:44 +08002173int f2fs_gc(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002174void build_gc_manager(struct f2fs_sb_info *);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002175
2176/*
2177 * recovery.c
2178 */
Jaegeuk Kim6781eab2016-03-23 16:12:58 -07002179int recover_fsync_data(struct f2fs_sb_info *, bool);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002180bool space_for_roll_forward(struct f2fs_sb_info *);
2181
2182/*
2183 * debug.c
2184 */
2185#ifdef CONFIG_F2FS_STAT_FS
2186struct f2fs_stat_info {
2187 struct list_head stat_list;
2188 struct f2fs_sb_info *sbi;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002189 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2190 int main_area_segs, main_area_sections, main_area_zones;
Chao Yu5b7ee372015-09-30 17:38:48 +08002191 unsigned long long hit_largest, hit_cached, hit_rbtree;
2192 unsigned long long hit_total, total_ext;
Jaegeuk Kimc00ba552015-12-31 15:24:14 -08002193 int ext_tree, zombie_tree, ext_node;
Jaegeuk Kim725ba1a2016-10-20 19:09:57 -07002194 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2195 int inmem_pages;
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07002196 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
Jaegeuk Kimdd4e4b52015-01-07 11:09:37 -08002197 int nats, dirty_nats, sits, dirty_sits, fnids;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002198 int total_count, utilization;
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07002199 int bg_gc, wb_bios;
Jaegeuk Kim652be552016-05-10 19:13:50 -07002200 int inline_xattr, inline_inode, inline_dir, orphans;
Yunlei Hef83a2582016-08-18 21:01:18 +08002201 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002202 unsigned int bimodal, avg_vblocks;
2203 int util_free, util_valid, util_invalid;
2204 int rsvd_segs, overp_segs;
2205 int dirty_count, node_pages, meta_pages;
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002206 int prefree_count, call_count, cp_count, bg_cp_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002207 int tot_segs, node_segs, data_segs, free_segs, free_secs;
Changman Leee1235982014-12-23 08:37:39 +09002208 int bg_node_segs, bg_data_segs;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002209 int tot_blks, data_blks, node_blks;
Changman Leee1235982014-12-23 08:37:39 +09002210 int bg_data_blks, bg_node_blks;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002211 int curseg[NR_CURSEG_TYPE];
2212 int cursec[NR_CURSEG_TYPE];
2213 int curzone[NR_CURSEG_TYPE];
2214
2215 unsigned int segment_count[2];
2216 unsigned int block_count[2];
Changman Leeb9a2c252014-12-24 02:16:54 +09002217 unsigned int inplace_count;
Chao Yu9edcdab2015-09-11 14:43:52 +08002218 unsigned long long base_mem, cache_mem, page_mem;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002219};
2220
Gu Zheng963d4f72013-07-12 14:47:11 +08002221static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2222{
Chris Fries6c311ec2014-01-17 14:44:39 -06002223 return (struct f2fs_stat_info *)sbi->stat_info;
Gu Zheng963d4f72013-07-12 14:47:11 +08002224}
2225
Changman Lee942e0be2014-02-13 15:12:29 +09002226#define stat_inc_cp_count(si) ((si)->cp_count++)
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002227#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002228#define stat_inc_call_count(si) ((si)->call_count++)
2229#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
Chao Yu33fbd512015-12-17 17:14:44 +08002230#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2231#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
Chao Yu5b7ee372015-09-30 17:38:48 +08002232#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2233#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2234#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2235#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
Chao Yud5e8f6c2015-07-15 17:28:53 +08002236#define stat_inc_inline_xattr(inode) \
2237 do { \
2238 if (f2fs_has_inline_xattr(inode)) \
2239 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2240 } while (0)
2241#define stat_dec_inline_xattr(inode) \
2242 do { \
2243 if (f2fs_has_inline_xattr(inode)) \
2244 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2245 } while (0)
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002246#define stat_inc_inline_inode(inode) \
2247 do { \
2248 if (f2fs_has_inline_data(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002249 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002250 } while (0)
2251#define stat_dec_inline_inode(inode) \
2252 do { \
2253 if (f2fs_has_inline_data(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002254 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002255 } while (0)
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002256#define stat_inc_inline_dir(inode) \
2257 do { \
2258 if (f2fs_has_inline_dentry(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002259 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002260 } while (0)
2261#define stat_dec_inline_dir(inode) \
2262 do { \
2263 if (f2fs_has_inline_dentry(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08002264 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002265 } while (0)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002266#define stat_inc_seg_type(sbi, curseg) \
2267 ((sbi)->segment_count[(curseg)->alloc_type]++)
2268#define stat_inc_block_count(sbi, curseg) \
2269 ((sbi)->block_count[(curseg)->alloc_type]++)
Changman Leeb9a2c252014-12-24 02:16:54 +09002270#define stat_inc_inplace_blocks(sbi) \
2271 (atomic_inc(&(sbi)->inplace_count))
Changman Leee1235982014-12-23 08:37:39 +09002272#define stat_inc_seg_count(sbi, type, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002273 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002274 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002275 (si)->tot_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002276 if (type == SUM_TYPE_DATA) { \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002277 si->data_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002278 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2279 } else { \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002280 si->node_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09002281 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2282 } \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002283 } while (0)
2284
2285#define stat_inc_tot_blk_count(si, blks) \
2286 (si->tot_blks += (blks))
2287
Changman Leee1235982014-12-23 08:37:39 +09002288#define stat_inc_data_blk_count(sbi, blks, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002289 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002290 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002291 stat_inc_tot_blk_count(si, blks); \
2292 si->data_blks += (blks); \
Changman Leee1235982014-12-23 08:37:39 +09002293 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002294 } while (0)
2295
Changman Leee1235982014-12-23 08:37:39 +09002296#define stat_inc_node_blk_count(sbi, blks, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002297 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08002298 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002299 stat_inc_tot_blk_count(si, blks); \
2300 si->node_blks += (blks); \
Changman Leee1235982014-12-23 08:37:39 +09002301 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002302 } while (0)
2303
2304int f2fs_build_stats(struct f2fs_sb_info *);
2305void f2fs_destroy_stats(struct f2fs_sb_info *);
Chao Yu787c7b8c2015-10-29 09:13:04 +08002306int __init f2fs_create_root_stats(void);
Namjae Jeon4589d252013-01-15 19:58:47 +09002307void f2fs_destroy_root_stats(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002308#else
Changman Lee942e0be2014-02-13 15:12:29 +09002309#define stat_inc_cp_count(si)
Jaegeuk Kim42190d22016-01-09 13:45:17 -08002310#define stat_inc_bg_cp_count(si)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002311#define stat_inc_call_count(si)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002312#define stat_inc_bggc_count(si)
Chao Yu33fbd512015-12-17 17:14:44 +08002313#define stat_inc_dirty_inode(sbi, type)
2314#define stat_dec_dirty_inode(sbi, type)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002315#define stat_inc_total_hit(sb)
Chao Yu029e13c2015-08-19 19:13:25 +08002316#define stat_inc_rbtree_node_hit(sb)
Chao Yu91c481f2015-08-19 19:12:20 +08002317#define stat_inc_largest_node_hit(sbi)
2318#define stat_inc_cached_node_hit(sbi)
Chao Yud5e8f6c2015-07-15 17:28:53 +08002319#define stat_inc_inline_xattr(inode)
2320#define stat_dec_inline_xattr(inode)
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002321#define stat_inc_inline_inode(inode)
2322#define stat_dec_inline_inode(inode)
Jaegeuk Kim3289c062014-10-13 20:00:16 -07002323#define stat_inc_inline_dir(inode)
2324#define stat_dec_inline_dir(inode)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09002325#define stat_inc_seg_type(sbi, curseg)
2326#define stat_inc_block_count(sbi, curseg)
Changman Leeb9a2c252014-12-24 02:16:54 +09002327#define stat_inc_inplace_blocks(sbi)
Changman Leee1235982014-12-23 08:37:39 +09002328#define stat_inc_seg_count(sbi, type, gc_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002329#define stat_inc_tot_blk_count(si, blks)
Changman Leee1235982014-12-23 08:37:39 +09002330#define stat_inc_data_blk_count(sbi, blks, gc_type)
2331#define stat_inc_node_blk_count(sbi, blks, gc_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002332
2333static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2334static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
Chao Yu787c7b8c2015-10-29 09:13:04 +08002335static inline int __init f2fs_create_root_stats(void) { return 0; }
Namjae Jeon4589d252013-01-15 19:58:47 +09002336static inline void f2fs_destroy_root_stats(void) { }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002337#endif
2338
2339extern const struct file_operations f2fs_dir_operations;
2340extern const struct file_operations f2fs_file_operations;
2341extern const struct inode_operations f2fs_file_inode_operations;
2342extern const struct address_space_operations f2fs_dblock_aops;
2343extern const struct address_space_operations f2fs_node_aops;
2344extern const struct address_space_operations f2fs_meta_aops;
2345extern const struct inode_operations f2fs_dir_inode_operations;
2346extern const struct inode_operations f2fs_symlink_inode_operations;
Jaegeuk Kimcbaf0422015-04-29 15:10:53 -07002347extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002348extern const struct inode_operations f2fs_special_inode_operations;
Jaegeuk Kim29e70432015-02-10 16:23:12 -08002349extern struct kmem_cache *inode_entry_slab;
Huajun Li1001b342013-11-10 23:13:16 +08002350
Huajun Lie18c65b2013-11-10 23:13:19 +08002351/*
2352 * inline.c
2353 */
Jaegeuk Kim01b960e2015-04-23 10:27:21 -07002354bool f2fs_may_inline_data(struct inode *);
2355bool f2fs_may_inline_dentry(struct inode *);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002356void read_inline_data(struct page *, struct page *);
Chao Yu0bfcfcc2015-03-10 13:16:25 +08002357bool truncate_inline_inode(struct page *, u64);
Huajun Lie18c65b2013-11-10 23:13:19 +08002358int f2fs_read_inline_data(struct inode *, struct page *);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002359int f2fs_convert_inline_page(struct dnode_of_data *, struct page *);
2360int f2fs_convert_inline_inode(struct inode *);
2361int f2fs_write_inline_data(struct inode *, struct page *);
Jaegeuk Kim0342fd32014-08-07 16:57:17 -07002362bool recover_inline_data(struct inode *, struct page *);
Jaegeuk Kim6e22c692015-04-27 17:12:39 -07002363struct f2fs_dir_entry *find_in_inline_dir(struct inode *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002364 struct fscrypt_name *, struct page **);
Chao Yu201a05b2014-09-24 18:17:53 +08002365int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *);
Chao Yu9421d572016-08-28 18:57:55 +08002366int f2fs_add_inline_entry(struct inode *, const struct qstr *,
2367 const struct qstr *, struct inode *, nid_t, umode_t);
Chao Yu201a05b2014-09-24 18:17:53 +08002368void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *,
2369 struct inode *, struct inode *);
2370bool f2fs_empty_inline_dir(struct inode *);
Jaegeuk Kimd8c68222015-04-27 16:26:24 -07002371int f2fs_read_inline_dir(struct file *, struct dir_context *,
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002372 struct fscrypt_str *);
Jaegeuk Kim67f8cf3c2015-10-15 11:34:49 -07002373int f2fs_inline_data_fiemap(struct inode *,
2374 struct fiemap_extent_info *, __u64, __u64);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002375
2376/*
Jaegeuk Kim2658e502015-06-19 12:01:21 -07002377 * shrinker.c
2378 */
2379unsigned long f2fs_shrink_count(struct shrinker *, struct shrink_control *);
2380unsigned long f2fs_shrink_scan(struct shrinker *, struct shrink_control *);
2381void f2fs_join_shrinker(struct f2fs_sb_info *);
2382void f2fs_leave_shrinker(struct f2fs_sb_info *);
2383
2384/*
Chao Yua28ef1f2015-07-08 17:59:36 +08002385 * extent_cache.c
2386 */
2387unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *, int);
Jaegeuk Kimed3d1252015-12-28 11:39:06 -08002388bool f2fs_init_extent_tree(struct inode *, struct f2fs_extent *);
Jaegeuk Kim5f281fa2016-07-12 11:07:52 -07002389void f2fs_drop_extent_tree(struct inode *);
Chao Yua28ef1f2015-07-08 17:59:36 +08002390unsigned int f2fs_destroy_extent_node(struct inode *);
2391void f2fs_destroy_extent_tree(struct inode *);
2392bool f2fs_lookup_extent_cache(struct inode *, pgoff_t, struct extent_info *);
2393void f2fs_update_extent_cache(struct dnode_of_data *);
Chao Yu19b2c302015-08-26 20:34:48 +08002394void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2395 pgoff_t, block_t, unsigned int);
Chao Yua28ef1f2015-07-08 17:59:36 +08002396void init_extent_cache_info(struct f2fs_sb_info *);
2397int __init create_extent_cache(void);
2398void destroy_extent_cache(void);
2399
2400/*
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002401 * crypto support
2402 */
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002403static inline bool f2fs_encrypted_inode(struct inode *inode)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002404{
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002405 return file_is_encrypt(inode);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002406}
2407
2408static inline void f2fs_set_encrypted_inode(struct inode *inode)
2409{
2410#ifdef CONFIG_F2FS_FS_ENCRYPTION
2411 file_set_encrypt(inode);
2412#endif
2413}
2414
2415static inline bool f2fs_bio_encrypted(struct bio *bio)
2416{
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002417 return bio->bi_private != NULL;
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002418}
2419
2420static inline int f2fs_sb_has_crypto(struct super_block *sb)
2421{
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002422 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07002423}
Jaegeuk Kimf424f662015-04-20 15:19:06 -07002424
Jaegeuk Kim52763a42016-06-13 09:47:48 -07002425static inline int f2fs_sb_mounted_hmsmr(struct super_block *sb)
2426{
2427 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_HMSMR);
2428}
2429
2430static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2431{
2432 clear_opt(sbi, ADAPTIVE);
2433 clear_opt(sbi, LFS);
2434
2435 switch (mt) {
2436 case F2FS_MOUNT_ADAPTIVE:
2437 set_opt(sbi, ADAPTIVE);
2438 break;
2439 case F2FS_MOUNT_LFS:
2440 set_opt(sbi, LFS);
2441 break;
2442 }
2443}
2444
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07002445static inline bool f2fs_may_encrypt(struct inode *inode)
2446{
2447#ifdef CONFIG_F2FS_FS_ENCRYPTION
Al Viro886f56f2015-12-05 03:56:06 -05002448 umode_t mode = inode->i_mode;
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07002449
2450 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
2451#else
2452 return 0;
2453#endif
2454}
2455
Jaegeuk Kim0b81d072015-05-15 16:26:10 -07002456#ifndef CONFIG_F2FS_FS_ENCRYPTION
2457#define fscrypt_set_d_op(i)
2458#define fscrypt_get_ctx fscrypt_notsupp_get_ctx
2459#define fscrypt_release_ctx fscrypt_notsupp_release_ctx
2460#define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page
2461#define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page
2462#define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages
2463#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
2464#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
2465#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
2466#define fscrypt_process_policy fscrypt_notsupp_process_policy
2467#define fscrypt_get_policy fscrypt_notsupp_get_policy
2468#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
2469#define fscrypt_inherit_context fscrypt_notsupp_inherit_context
2470#define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info
2471#define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info
2472#define fscrypt_setup_filename fscrypt_notsupp_setup_filename
2473#define fscrypt_free_filename fscrypt_notsupp_free_filename
2474#define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size
2475#define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer
2476#define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer
2477#define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr
2478#define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk
Jaegeuk Kim57e50552015-04-20 19:52:47 -07002479#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002480#endif