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Chao Yu7c1a0002018-09-12 09:16:07 +08001// SPDX-License-Identifier: GPL-2.0
Jaegeuk Kim0a8165d2012-11-29 13:28:09 +09002/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003 * fs/f2fs/f2fs.h
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09007 */
8#ifndef _LINUX_F2FS_H
9#define _LINUX_F2FS_H
10
Chao Yuf847c692018-09-27 18:34:52 +080011#include <linux/uio.h>
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090012#include <linux/types.h>
13#include <linux/page-flags.h>
14#include <linux/buffer_head.h>
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090015#include <linux/slab.h>
16#include <linux/crc32.h>
17#include <linux/magic.h>
Jaegeuk Kimc2d715d2013-08-08 15:56:49 +090018#include <linux/kobject.h>
Gu Zheng7bd59382013-10-22 14:52:26 +080019#include <linux/sched.h>
Jaegeuk Kim7c2e5962018-01-04 21:36:09 -080020#include <linux/cred.h>
Jaegeuk Kim39307a82015-09-22 13:50:47 -070021#include <linux/vmalloc.h>
Jaegeuk Kim740432f2015-08-14 11:43:56 -070022#include <linux/bio.h>
Jaegeuk Kimd0239e12016-01-08 16:57:48 -080023#include <linux/blkdev.h>
Chao Yu0abd6752017-07-09 00:13:07 +080024#include <linux/quotaops.h>
Keith Mok43b65732016-03-02 12:04:24 -080025#include <crypto/hash.h>
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090026
Dave Chinner734f0d22017-10-09 12:15:34 -070027#include <linux/fscrypt.h>
Eric Biggers95ae2512019-07-22 09:26:24 -070028#include <linux/fsverity.h>
Dave Chinner734f0d22017-10-09 12:15:34 -070029
Jaegeuk Kim5d56b672013-10-29 15:14:54 +090030#ifdef CONFIG_F2FS_CHECK_FS
Jaegeuk Kim9850cf42014-09-02 15:52:58 -070031#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
Jaegeuk Kim5d56b672013-10-29 15:14:54 +090032#else
Jaegeuk Kim9850cf42014-09-02 15:52:58 -070033#define f2fs_bug_on(sbi, condition) \
34 do { \
35 if (unlikely(condition)) { \
36 WARN_ON(1); \
Chao Yucaf00472015-01-28 17:48:42 +080037 set_sbi_flag(sbi, SBI_NEED_FSCK); \
Jaegeuk Kim9850cf42014-09-02 15:52:58 -070038 } \
39 } while (0)
Jaegeuk Kim5d56b672013-10-29 15:14:54 +090040#endif
41
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070042enum {
43 FAULT_KMALLOC,
Chao Yu628b3d12017-11-30 19:28:18 +080044 FAULT_KVMALLOC,
Jaegeuk Kimc41f3cc32016-04-29 16:17:09 -070045 FAULT_PAGE_ALLOC,
Chao Yu01eccef2017-10-28 16:52:30 +080046 FAULT_PAGE_GET,
Chao Yud62fe972017-10-28 16:52:31 +080047 FAULT_ALLOC_BIO,
Jaegeuk Kimcb789422016-04-29 16:29:22 -070048 FAULT_ALLOC_NID,
49 FAULT_ORPHAN,
50 FAULT_BLOCK,
51 FAULT_DIR_DEPTH,
Jaegeuk Kim53aa6bb2016-05-25 15:24:18 -070052 FAULT_EVICT_INODE,
Jaegeuk Kim14b44d22017-03-09 15:24:24 -080053 FAULT_TRUNCATE,
Chao Yu6f5c2ed2018-09-12 09:22:29 +080054 FAULT_READ_IO,
Chao Yu0f348022016-09-26 19:45:55 +080055 FAULT_CHECKPOINT,
Chao Yub83dcfe2018-08-06 20:30:18 +080056 FAULT_DISCARD,
Chao Yu6f5c2ed2018-09-12 09:22:29 +080057 FAULT_WRITE_IO,
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070058 FAULT_MAX,
59};
60
Arnd Bergmann7fa750a2018-08-13 23:38:06 +020061#ifdef CONFIG_F2FS_FAULT_INJECTION
Chao Yud4945002018-08-08 17:36:41 +080062#define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
63
Sheng Yong08796892016-05-16 12:38:50 +080064struct f2fs_fault_info {
65 atomic_t inject_ops;
66 unsigned int inject_rate;
67 unsigned int inject_type;
68};
69
Alexey Dobriyan19880e62018-11-24 12:06:42 +030070extern const char *f2fs_fault_name[FAULT_MAX];
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +030071#define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -070072#endif
73
Jaegeuk Kim39a53e02012-11-28 13:37:31 +090074/*
75 * For mount options
76 */
77#define F2FS_MOUNT_BG_GC 0x00000001
78#define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
79#define F2FS_MOUNT_DISCARD 0x00000004
80#define F2FS_MOUNT_NOHEAP 0x00000008
81#define F2FS_MOUNT_XATTR_USER 0x00000010
82#define F2FS_MOUNT_POSIX_ACL 0x00000020
83#define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
Jaegeuk Kim444c5802013-08-08 15:16:22 +090084#define F2FS_MOUNT_INLINE_XATTR 0x00000080
Huajun Li1001b342013-11-10 23:13:16 +080085#define F2FS_MOUNT_INLINE_DATA 0x00000100
Chao Yu34d67de2014-09-24 18:15:19 +080086#define F2FS_MOUNT_INLINE_DENTRY 0x00000200
87#define F2FS_MOUNT_FLUSH_MERGE 0x00000400
88#define F2FS_MOUNT_NOBARRIER 0x00000800
Jaegeuk Kimd5053a342014-10-30 22:47:03 -070089#define F2FS_MOUNT_FASTBOOT 0x00001000
Chao Yu89672152015-02-05 17:55:51 +080090#define F2FS_MOUNT_EXTENT_CACHE 0x00002000
Jaegeuk Kim6aefd932015-10-05 11:02:54 -070091#define F2FS_MOUNT_FORCE_FG_GC 0x00004000
Chao Yu343f40f2015-12-16 13:12:16 +080092#define F2FS_MOUNT_DATA_FLUSH 0x00008000
Jaegeuk Kim73faec4d2016-04-29 15:34:32 -070093#define F2FS_MOUNT_FAULT_INJECTION 0x00010000
Jaegeuk Kim36abef42016-06-03 19:29:38 -070094#define F2FS_MOUNT_ADAPTIVE 0x00020000
95#define F2FS_MOUNT_LFS 0x00040000
Chao Yu0abd6752017-07-09 00:13:07 +080096#define F2FS_MOUNT_USRQUOTA 0x00080000
97#define F2FS_MOUNT_GRPQUOTA 0x00100000
Chao Yu5c571322017-07-26 00:01:41 +080098#define F2FS_MOUNT_PRJQUOTA 0x00200000
Chao Yu4b2414d2017-08-08 10:54:31 +080099#define F2FS_MOUNT_QUOTA 0x00400000
Chao Yu6afc6622017-09-06 21:59:50 +0800100#define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
Jaegeuk Kim7e65be42017-12-27 15:05:52 -0800101#define F2FS_MOUNT_RESERVE_ROOT 0x01000000
Daniel Rosenberg43549942018-08-20 19:21:43 -0700102#define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900103
Chao Yu63189b72018-03-08 14:22:56 +0800104#define F2FS_OPTION(sbi) ((sbi)->mount_opt)
105#define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
106#define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
107#define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900108
109#define ver_after(a, b) (typecheck(unsigned long long, a) && \
110 typecheck(unsigned long long, b) && \
111 ((long long)((a) - (b)) > 0))
112
Jaegeuk Kima9841c42013-05-24 12:41:04 +0900113typedef u32 block_t; /*
114 * should not change u32, since it is the on-disk block
115 * address format, __le32.
116 */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900117typedef u32 nid_t;
118
119struct f2fs_mount_info {
Chao Yu63189b72018-03-08 14:22:56 +0800120 unsigned int opt;
121 int write_io_size_bits; /* Write IO size bits */
122 block_t root_reserved_blocks; /* root reserved blocks */
123 kuid_t s_resuid; /* reserved blocks for uid */
124 kgid_t s_resgid; /* reserved blocks for gid */
125 int active_logs; /* # of active logs */
126 int inline_xattr_size; /* inline xattr size */
127#ifdef CONFIG_F2FS_FAULT_INJECTION
128 struct f2fs_fault_info fault_info; /* For fault injection */
129#endif
130#ifdef CONFIG_QUOTA
131 /* Names of quota files with journalled quota */
132 char *s_qf_names[MAXQUOTAS];
133 int s_jquota_fmt; /* Format of quota to use */
134#endif
135 /* For which write hints are passed down to block layer */
136 int whint_mode;
137 int alloc_mode; /* segment allocation policy */
138 int fsync_mode; /* fsync policy */
Sheng Yongff62af22018-03-15 18:51:42 +0800139 bool test_dummy_encryption; /* test dummy encryption */
Daniel Rosenberg4d3aed72019-05-29 17:49:06 -0700140 block_t unusable_cap; /* Amount of space allowed to be
141 * unusable when disabling checkpoint
142 */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900143};
144
Chao Yu7a2af762017-07-19 00:19:06 +0800145#define F2FS_FEATURE_ENCRYPT 0x0001
146#define F2FS_FEATURE_BLKZONED 0x0002
147#define F2FS_FEATURE_ATOMIC_WRITE 0x0004
148#define F2FS_FEATURE_EXTRA_ATTR 0x0008
Chao Yu5c571322017-07-26 00:01:41 +0800149#define F2FS_FEATURE_PRJQUOTA 0x0010
Chao Yu704956e2017-07-31 20:19:09 +0800150#define F2FS_FEATURE_INODE_CHKSUM 0x0020
Chao Yu6afc6622017-09-06 21:59:50 +0800151#define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
Jaegeuk Kim234a9682017-10-05 21:03:06 -0700152#define F2FS_FEATURE_QUOTA_INO 0x0080
Chao Yu1c1d35d2018-01-25 14:54:42 +0800153#define F2FS_FEATURE_INODE_CRTIME 0x0100
Sheng Yongb7c409d2018-03-15 18:51:41 +0800154#define F2FS_FEATURE_LOST_FOUND 0x0200
Eric Biggers95ae2512019-07-22 09:26:24 -0700155#define F2FS_FEATURE_VERITY 0x0400
Junling Zhengd440c522018-09-28 20:25:56 +0800156#define F2FS_FEATURE_SB_CHKSUM 0x0800
Daniel Rosenberg5aba5432019-07-23 16:05:28 -0700157#define F2FS_FEATURE_CASEFOLD 0x1000
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700158
Chao Yu7beb01f2018-10-24 18:34:26 +0800159#define __F2FS_HAS_FEATURE(raw_super, mask) \
160 ((raw_super->feature & cpu_to_le32(mask)) != 0)
161#define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
162#define F2FS_SET_FEATURE(sbi, mask) \
163 (sbi->raw_super->feature |= cpu_to_le32(mask))
164#define F2FS_CLEAR_FEATURE(sbi, mask) \
165 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
Jaegeuk Kim76f105a2015-04-13 15:10:36 -0700166
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900167/*
Jaegeuk Kim7c2e5962018-01-04 21:36:09 -0800168 * Default values for user and/or group using reserved blocks
169 */
170#define F2FS_DEF_RESUID 0
171#define F2FS_DEF_RESGID 0
172
173/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900174 * For checkpoint manager
175 */
176enum {
177 NAT_BITMAP,
178 SIT_BITMAP
179};
180
Chao Yuc473f1a2017-04-27 20:40:39 +0800181#define CP_UMOUNT 0x00000001
182#define CP_FASTBOOT 0x00000002
183#define CP_SYNC 0x00000004
184#define CP_RECOVERY 0x00000008
185#define CP_DISCARD 0x00000010
Chao Yu1f43e2a2017-04-28 13:56:08 +0800186#define CP_TRIMMED 0x00000020
Daniel Rosenberg43549942018-08-20 19:21:43 -0700187#define CP_PAUSE 0x00000040
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700188
Jaegeuk Kim4ddb1a42017-04-07 15:08:17 -0700189#define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
Chao Yuecc9aa02017-10-04 09:08:33 +0800190#define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
Chao Yu969d1b12017-08-07 23:09:56 +0800191#define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
Yunlei Hef9d1dce2018-04-08 15:11:11 +0800192#define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
Chao Yu969d1b12017-08-07 23:09:56 +0800193#define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
Jaegeuk Kim8bb4f252018-05-29 09:58:42 -0700194#define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
Jaegeuk Kim60b99b42015-10-05 14:49:57 -0700195#define DEF_CP_INTERVAL 60 /* 60 secs */
Chao Yudcf25fe2016-07-15 19:25:47 +0800196#define DEF_IDLE_INTERVAL 5 /* 5 secs */
Daniel Rosenberg43549942018-08-20 19:21:43 -0700197#define DEF_DISABLE_INTERVAL 5 /* 5 secs */
Jaegeuk Kimdb610a62019-01-24 17:48:38 -0800198#define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
Jaegeuk Kim03f2c022019-01-14 10:42:11 -0800199#define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800200
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700201struct cp_control {
202 int reason;
Jaegeuk Kim4b2fecc2014-09-20 22:06:39 -0700203 __u64 trim_start;
204 __u64 trim_end;
205 __u64 trim_minlen;
Jaegeuk Kim75ab4cb2014-09-20 21:57:51 -0700206};
207
Chao Yu662befd2014-02-07 16:11:53 +0800208/*
Chao Yue1da7872018-06-05 17:44:11 +0800209 * indicate meta/data type
Chao Yu662befd2014-02-07 16:11:53 +0800210 */
211enum {
212 META_CP,
213 META_NAT,
Chao Yu81c1a0f12014-02-27 19:12:24 +0800214 META_SIT,
Jaegeuk Kim4c521f492014-09-11 13:49:55 -0700215 META_SSA,
Chao Yub63e7be2018-09-29 18:31:27 +0800216 META_MAX,
Jaegeuk Kim4c521f492014-09-11 13:49:55 -0700217 META_POR,
Chao Yu93770ab2019-04-15 15:26:32 +0800218 DATA_GENERIC, /* check range only */
219 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
220 DATA_GENERIC_ENHANCE_READ, /*
221 * strong check on range and segment
222 * bitmap but no warning due to race
223 * condition of read on truncated area
224 * by extent_cache
225 */
Chao Yue1da7872018-06-05 17:44:11 +0800226 META_GENERIC,
Chao Yu662befd2014-02-07 16:11:53 +0800227};
228
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700229/* for the list of ino */
230enum {
231 ORPHAN_INO, /* for orphan ino list */
Jaegeuk Kimfff04f92014-07-25 07:40:59 -0700232 APPEND_INO, /* for append ino list */
233 UPDATE_INO, /* for update ino list */
Jaegeuk Kim0a007b972017-12-28 08:09:44 -0800234 TRANS_DIR_INO, /* for trasactions dir ino list */
Chao Yu39d787b2017-09-29 13:59:38 +0800235 FLUSH_INO, /* for multiple device flushing */
Jaegeuk Kim6451e042014-07-25 15:47:17 -0700236 MAX_INO_ENTRY, /* max. list */
237};
238
239struct ino_entry {
Chao Yu39d787b2017-09-29 13:59:38 +0800240 struct list_head list; /* list head */
241 nid_t ino; /* inode number */
242 unsigned int dirty_device; /* dirty device bitmap */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900243};
244
Chao Yu2710fd72015-12-15 13:30:45 +0800245/* for the list of inodes to be GCed */
Chao Yu06292072014-12-29 15:56:18 +0800246struct inode_entry {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900247 struct list_head list; /* list head */
248 struct inode *inode; /* vfs inode pointer */
249};
250
Chao Yu50fa53e2018-08-02 23:03:19 +0800251struct fsync_node_entry {
252 struct list_head list; /* list head */
253 struct page *page; /* warm node page pointer */
254 unsigned int seq_id; /* sequence id */
255};
256
Chao Yua7eeb8232017-03-28 18:18:50 +0800257/* for the bitmap indicate blocks to be discarded */
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900258struct discard_entry {
259 struct list_head list; /* list head */
Chao Yua7eeb8232017-03-28 18:18:50 +0800260 block_t start_blkaddr; /* start blockaddr of current segment */
261 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900262};
263
Chao Yu969d1b12017-08-07 23:09:56 +0800264/* default discard granularity of inner discard thread, unit: block count */
265#define DEFAULT_DISCARD_GRANULARITY 16
266
Chao Yuba48a332017-04-15 14:09:37 +0800267/* max discard pend list number */
268#define MAX_PLIST_NUM 512
269#define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
Sheng Yong2f84bab2019-01-14 22:05:14 +0800270 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
Chao Yuba48a332017-04-15 14:09:37 +0800271
Jaegeuk Kim15469962017-01-09 20:32:07 -0800272enum {
Chao Yu35ec7d52018-08-06 22:43:50 +0800273 D_PREP, /* initial */
274 D_PARTIAL, /* partially submitted */
275 D_SUBMIT, /* all submitted */
276 D_DONE, /* finished */
Jaegeuk Kim15469962017-01-09 20:32:07 -0800277};
278
Chao Yu004b6862017-04-14 23:24:55 +0800279struct discard_info {
Jaegeuk Kimb01a9202017-01-09 14:13:03 -0800280 block_t lstart; /* logical start address */
281 block_t len; /* length */
Chao Yu004b6862017-04-14 23:24:55 +0800282 block_t start; /* actual start address in dev */
283};
284
Jaegeuk Kimb01a9202017-01-09 14:13:03 -0800285struct discard_cmd {
Chao Yu004b6862017-04-14 23:24:55 +0800286 struct rb_node rb_node; /* rb node located in rb-tree */
287 union {
288 struct {
289 block_t lstart; /* logical start address */
290 block_t len; /* length */
291 block_t start; /* actual start address in dev */
292 };
293 struct discard_info di; /* discard info */
294
295 };
Jaegeuk Kimb01a9202017-01-09 14:13:03 -0800296 struct list_head list; /* command list */
297 struct completion wait; /* compleation */
Jaegeuk Kimc81abe32017-03-07 18:02:02 -0800298 struct block_device *bdev; /* bdev */
Chao Yuec9895a2017-04-26 17:39:54 +0800299 unsigned short ref; /* reference count */
Chao Yu9a744b92017-04-26 17:39:55 +0800300 unsigned char state; /* state */
Jaegeuk Kim72691af2018-12-13 16:53:57 -0800301 unsigned char queued; /* queued discard */
Jaegeuk Kimc81abe32017-03-07 18:02:02 -0800302 int error; /* bio error */
Chao Yu35ec7d52018-08-06 22:43:50 +0800303 spinlock_t lock; /* for state/bio_ref updating */
304 unsigned short bio_ref; /* bio reference count */
Chao Yu275b66b2016-08-29 23:58:34 +0800305};
306
Chao Yu78997b52017-10-04 09:08:34 +0800307enum {
308 DPOLICY_BG,
309 DPOLICY_FORCE,
310 DPOLICY_FSTRIM,
311 DPOLICY_UMOUNT,
312 MAX_DPOLICY,
313};
314
Chao Yuecc9aa02017-10-04 09:08:33 +0800315struct discard_policy {
Chao Yu78997b52017-10-04 09:08:34 +0800316 int type; /* type of discard */
Chao Yuecc9aa02017-10-04 09:08:33 +0800317 unsigned int min_interval; /* used for candidates exist */
Yunlei Hef9d1dce2018-04-08 15:11:11 +0800318 unsigned int mid_interval; /* used for device busy */
Chao Yuecc9aa02017-10-04 09:08:33 +0800319 unsigned int max_interval; /* used for candidates not exist */
320 unsigned int max_requests; /* # of discards issued per round */
321 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
322 bool io_aware; /* issue discard in idle time */
323 bool sync; /* submit discard with REQ_SYNC flag */
Chao Yu20ee4382018-07-08 22:11:01 +0800324 bool ordered; /* issue discard by lba order */
Chao Yu78997b52017-10-04 09:08:34 +0800325 unsigned int granularity; /* discard granularity */
Jaegeuk Kim03f2c022019-01-14 10:42:11 -0800326 int timeout; /* discard timeout for put_super */
Chao Yuecc9aa02017-10-04 09:08:33 +0800327};
328
Jaegeuk Kim0b54fb82017-01-11 14:40:24 -0800329struct discard_cmd_control {
Jaegeuk Kim15469962017-01-09 20:32:07 -0800330 struct task_struct *f2fs_issue_discard; /* discard thread */
Chao Yu46f84c22017-04-15 14:09:36 +0800331 struct list_head entry_list; /* 4KB discard entry list */
Chao Yuba48a332017-04-15 14:09:37 +0800332 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
Chao Yu46f84c22017-04-15 14:09:36 +0800333 struct list_head wait_list; /* store on-flushing entries */
Chao Yu84126632017-10-04 09:08:32 +0800334 struct list_head fstrim_list; /* in-flight discard from fstrim */
Jaegeuk Kim15469962017-01-09 20:32:07 -0800335 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
Chao Yu969d1b12017-08-07 23:09:56 +0800336 unsigned int discard_wake; /* to wake up discard thread */
Jaegeuk Kim15469962017-01-09 20:32:07 -0800337 struct mutex cmd_lock;
Chao Yud618eba2017-04-25 00:21:35 +0800338 unsigned int nr_discards; /* # of discards in the list */
339 unsigned int max_discards; /* max. discards to be issued */
Chao Yu969d1b12017-08-07 23:09:56 +0800340 unsigned int discard_granularity; /* discard granularity */
Chao Yud84d1cb2017-04-18 19:27:39 +0800341 unsigned int undiscard_blks; /* # of undiscard blocks */
Chao Yu20ee4382018-07-08 22:11:01 +0800342 unsigned int next_pos; /* next discard position */
Chao Yu8b8dd652017-03-25 17:19:58 +0800343 atomic_t issued_discard; /* # of issued discard */
Jaegeuk Kim72691af2018-12-13 16:53:57 -0800344 atomic_t queued_discard; /* # of queued discard */
Chao Yu5f323662017-03-25 17:19:59 +0800345 atomic_t discard_cmd_cnt; /* # of cached cmd count */
Chao Yu4dada3f2018-10-04 11:18:30 +0800346 struct rb_root_cached root; /* root of discard rb-tree */
Chao Yu67fce702018-06-22 16:06:59 +0800347 bool rbtree_check; /* config for consistence check */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900348};
349
350/* for the list of fsync inodes, used only during recovery */
351struct fsync_inode_entry {
352 struct list_head list; /* list head */
353 struct inode *inode; /* vfs inode pointer */
Jaegeuk Kimc52e1b12014-09-11 14:29:06 -0700354 block_t blkaddr; /* block address locating the last fsync */
355 block_t last_dentry; /* block address locating the last dentry */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900356};
357
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +0300358#define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
359#define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900360
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +0300361#define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
362#define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
363#define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
364#define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900365
Chao Yudfc08a12016-02-14 18:50:40 +0800366#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
367#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700368
Chao Yudfc08a12016-02-14 18:50:40 +0800369static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900370{
Chao Yudfc08a12016-02-14 18:50:40 +0800371 int before = nats_in_cursum(journal);
DongOh Shincac5a3d2017-01-30 10:55:18 -0800372
Chao Yudfc08a12016-02-14 18:50:40 +0800373 journal->n_nats = cpu_to_le16(before + i);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900374 return before;
375}
376
Chao Yudfc08a12016-02-14 18:50:40 +0800377static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900378{
Chao Yudfc08a12016-02-14 18:50:40 +0800379 int before = sits_in_cursum(journal);
DongOh Shincac5a3d2017-01-30 10:55:18 -0800380
Chao Yudfc08a12016-02-14 18:50:40 +0800381 journal->n_sits = cpu_to_le16(before + i);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900382 return before;
383}
384
Chao Yudfc08a12016-02-14 18:50:40 +0800385static inline bool __has_cursum_space(struct f2fs_journal *journal,
386 int size, int type)
Chao Yu184a5cd2014-09-04 18:13:01 +0800387{
388 if (type == NAT_JOURNAL)
Chao Yudfc08a12016-02-14 18:50:40 +0800389 return size <= MAX_NAT_JENTRIES(journal);
390 return size <= MAX_SIT_JENTRIES(journal);
Chao Yu184a5cd2014-09-04 18:13:01 +0800391}
392
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900393/*
Namjae Jeone9750822013-02-04 23:41:41 +0900394 * ioctl commands
395 */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700396#define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
397#define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
Chao Yud49f3e82015-01-23 20:36:04 +0800398#define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700399
400#define F2FS_IOCTL_MAGIC 0xf5
401#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
402#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
Jaegeuk Kim02a13352014-10-06 16:11:16 -0700403#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
Jaegeuk Kim1e843712014-12-09 06:08:59 -0800404#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
405#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
Jaegeuk Kimd07efb52017-04-18 13:47:25 -0700406#define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
Chao Yu456b88e2015-10-05 22:24:19 +0800407#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
Jaegeuk Kimd07efb52017-04-18 13:47:25 -0700408#define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
409 struct f2fs_defragment)
Jaegeuk Kim4dd6f972016-07-08 15:16:47 -0700410#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
411 struct f2fs_move_range)
Jaegeuk Kime066b832017-04-13 15:17:00 -0700412#define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
413 struct f2fs_flush_device)
Jaegeuk Kim34dc77a2017-06-15 16:44:42 -0700414#define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
415 struct f2fs_gc_range)
Jaegeuk Kime65ef202017-07-21 12:58:59 -0700416#define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -0800417#define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
418#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
Chao Yuc4020b22018-01-11 14:42:30 +0800419#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
Qiuyang Sun04f0b2e2019-06-05 11:33:25 +0800420#define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
Namjae Jeone9750822013-02-04 23:41:41 +0900421
Chao Yu4507847c2019-07-17 17:06:11 +0800422#define F2FS_IOC_GET_VOLUME_NAME FS_IOC_GETFSLABEL
423#define F2FS_IOC_SET_VOLUME_NAME FS_IOC_SETFSLABEL
424
Jaegeuk Kim0b81d072015-05-15 16:26:10 -0700425#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
426#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
427#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
Jaegeuk Kimf424f662015-04-20 15:19:06 -0700428
Jaegeuk Kim1abff932015-01-08 19:15:53 -0800429/*
430 * should be same as XFS_IOC_GOINGDOWN.
431 * Flags for going down operation used by FS_IOC_GOINGDOWN
432 */
433#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
434#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
435#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
436#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
Jaegeuk Kimc912a822015-10-07 09:46:37 -0700437#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
Jaegeuk Kim0cd6d9b2018-11-28 13:26:03 -0800438#define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
Jaegeuk Kim1abff932015-01-08 19:15:53 -0800439
Namjae Jeone9750822013-02-04 23:41:41 +0900440#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
441/*
442 * ioctl commands in 32 bit emulation
443 */
Chao Yu04ef4b62015-11-10 18:44:20 +0800444#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
445#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
446#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
Namjae Jeone9750822013-02-04 23:41:41 +0900447#endif
448
Chao Yu2c1d0302017-07-29 00:32:52 +0800449#define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
450#define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
451
Jaegeuk Kim34dc77a2017-06-15 16:44:42 -0700452struct f2fs_gc_range {
453 u32 sync;
454 u64 start;
455 u64 len;
456};
457
Chao Yud323d002015-10-27 09:53:45 +0800458struct f2fs_defragment {
459 u64 start;
460 u64 len;
461};
462
Jaegeuk Kim4dd6f972016-07-08 15:16:47 -0700463struct f2fs_move_range {
464 u32 dst_fd; /* destination fd */
465 u64 pos_in; /* start position in src_fd */
466 u64 pos_out; /* start position in dst_fd */
467 u64 len; /* size to move */
468};
469
Jaegeuk Kime066b832017-04-13 15:17:00 -0700470struct f2fs_flush_device {
471 u32 dev_num; /* device number to flush */
472 u32 segments; /* # of segments to flush */
473};
474
Chao Yuf2470372017-07-19 00:19:05 +0800475/* for inline stuff */
476#define DEF_INLINE_RESERVED_SIZE 1
Chao Yu7a2af762017-07-19 00:19:06 +0800477static inline int get_extra_isize(struct inode *inode);
Chao Yu6afc6622017-09-06 21:59:50 +0800478static inline int get_inline_xattr_addrs(struct inode *inode);
Chao Yu6afc6622017-09-06 21:59:50 +0800479#define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
480 (CUR_ADDRS_PER_INODE(inode) - \
Chao Yub323fd22018-01-17 16:31:36 +0800481 get_inline_xattr_addrs(inode) - \
Chao Yu6afc6622017-09-06 21:59:50 +0800482 DEF_INLINE_RESERVED_SIZE))
Chao Yuf2470372017-07-19 00:19:05 +0800483
484/* for inline dir */
485#define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
486 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
487 BITS_PER_BYTE + 1))
Geert Uytterhoevenf91108b2019-06-20 16:42:08 +0200488#define INLINE_DENTRY_BITMAP_SIZE(inode) \
489 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
Chao Yuf2470372017-07-19 00:19:05 +0800490#define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
491 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
492 NR_INLINE_DENTRY(inode) + \
493 INLINE_DENTRY_BITMAP_SIZE(inode)))
494
Namjae Jeone9750822013-02-04 23:41:41 +0900495/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900496 * For INODE and NODE manager
497 */
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700498/* for directory operations */
499struct f2fs_dentry_ptr {
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700500 struct inode *inode;
Chao Yu76a9dd82017-07-16 15:08:54 +0800501 void *bitmap;
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700502 struct f2fs_dir_entry *dentry;
503 __u8 (*filename)[F2FS_SLOT_LEN];
504 int max;
Chao Yu76a9dd82017-07-16 15:08:54 +0800505 int nr_bitmap;
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700506};
507
Tomohiro Kusumi64c24ec2017-04-04 13:01:22 +0300508static inline void make_dentry_ptr_block(struct inode *inode,
509 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700510{
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700511 d->inode = inode;
Tomohiro Kusumi64c24ec2017-04-04 13:01:22 +0300512 d->max = NR_DENTRY_IN_BLOCK;
Chao Yu76a9dd82017-07-16 15:08:54 +0800513 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
Yunlong Songc79d1522018-04-02 20:22:20 +0800514 d->bitmap = t->dentry_bitmap;
Tomohiro Kusumi64c24ec2017-04-04 13:01:22 +0300515 d->dentry = t->dentry;
516 d->filename = t->filename;
517}
Jaegeuk Kimd8c68222015-04-27 16:26:24 -0700518
Tomohiro Kusumi64c24ec2017-04-04 13:01:22 +0300519static inline void make_dentry_ptr_inline(struct inode *inode,
Chao Yuf2470372017-07-19 00:19:05 +0800520 struct f2fs_dentry_ptr *d, void *t)
Tomohiro Kusumi64c24ec2017-04-04 13:01:22 +0300521{
Chao Yuf2470372017-07-19 00:19:05 +0800522 int entry_cnt = NR_INLINE_DENTRY(inode);
523 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
524 int reserved_size = INLINE_RESERVED_SIZE(inode);
525
Tomohiro Kusumi64c24ec2017-04-04 13:01:22 +0300526 d->inode = inode;
Chao Yuf2470372017-07-19 00:19:05 +0800527 d->max = entry_cnt;
528 d->nr_bitmap = bitmap_size;
529 d->bitmap = t;
530 d->dentry = t + bitmap_size + reserved_size;
531 d->filename = t + bitmap_size + reserved_size +
532 SIZE_OF_DIR_ENTRY * entry_cnt;
Jaegeuk Kim7b3cd7d2014-10-18 22:52:52 -0700533}
534
Jaegeuk Kimdbe6a5f2013-08-09 08:14:06 +0900535/*
536 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
537 * as its node offset to distinguish from index node blocks.
538 * But some bits are used to mark the node block.
539 */
540#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
541 >> OFFSET_BIT_SHIFT)
Jaegeuk Kim266e97a2013-02-26 13:10:46 +0900542enum {
543 ALLOC_NODE, /* allocate a new node page if needed */
544 LOOKUP_NODE, /* look up a node without readahead */
545 LOOKUP_NODE_RA, /*
546 * look up a node with readahead called
Chao Yu4f4124d2013-12-21 18:02:14 +0800547 * by get_data_block.
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900548 */
Jaegeuk Kim266e97a2013-02-26 13:10:46 +0900549};
550
Chao Yu77357302018-07-17 00:02:17 +0800551#define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
552
Chao Yuaf033b22018-09-20 20:05:00 +0800553/* maximum retry quota flush count */
554#define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
555
Jaegeuk Kima6db67f2015-08-10 15:01:12 -0700556#define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900557
Chao Yu817202d92014-04-28 17:59:43 +0800558#define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
559
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900560/* for in-memory extent cache entry */
Chao Yu13054c52015-02-05 17:52:58 +0800561#define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
562
563/* number of extent info in extent cache we try to shrink */
564#define EXTENT_CACHE_SHRINK_NUMBER 128
Jaegeuk Kimc11abd12013-11-19 10:41:54 +0900565
Chao Yu54c22582017-04-11 09:25:22 +0800566struct rb_entry {
567 struct rb_node rb_node; /* rb node located in rb-tree */
568 unsigned int ofs; /* start offset of the entry */
569 unsigned int len; /* length of the entry */
570};
571
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900572struct extent_info {
Chao Yu13054c52015-02-05 17:52:58 +0800573 unsigned int fofs; /* start offset in a file */
Chao Yu13054c52015-02-05 17:52:58 +0800574 unsigned int len; /* length of the extent */
Chao Yu54c22582017-04-11 09:25:22 +0800575 u32 blk; /* start block address of the extent */
Chao Yu13054c52015-02-05 17:52:58 +0800576};
577
578struct extent_node {
Chao Yuc0362112018-12-18 19:20:16 +0800579 struct rb_node rb_node; /* rb node located in rb-tree */
580 struct extent_info ei; /* extent info */
Chao Yu13054c52015-02-05 17:52:58 +0800581 struct list_head list; /* node in global extent list of sbi */
Hou Pengyang201ef5e2016-01-26 12:56:26 +0000582 struct extent_tree *et; /* extent tree pointer */
Chao Yu13054c52015-02-05 17:52:58 +0800583};
584
585struct extent_tree {
586 nid_t ino; /* inode number */
Chao Yu4dada3f2018-10-04 11:18:30 +0800587 struct rb_root_cached root; /* root of extent info rb-tree */
Chao Yu62c8af62015-02-05 18:01:39 +0800588 struct extent_node *cached_en; /* recently accessed extent node */
Jaegeuk Kim3e72f722015-06-19 17:53:26 -0700589 struct extent_info largest; /* largested extent info */
Jaegeuk Kim137d09f2015-12-31 15:02:16 -0800590 struct list_head list; /* to be used by sbi->zombie_list */
Chao Yu13054c52015-02-05 17:52:58 +0800591 rwlock_t lock; /* protect extent info rb-tree */
Chao Yu68e35382016-01-08 20:22:52 +0800592 atomic_t node_cnt; /* # of extent node in rb-tree*/
Zhikang Zhangb430f722018-09-10 16:18:25 +0800593 bool largest_updated; /* largest extent updated */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900594};
595
596/*
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700597 * This structure is taken from ext4_map_blocks.
598 *
599 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
600 */
601#define F2FS_MAP_NEW (1 << BH_New)
602#define F2FS_MAP_MAPPED (1 << BH_Mapped)
Jaegeuk Kim7f63eb72015-05-08 19:30:32 -0700603#define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
604#define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
605 F2FS_MAP_UNWRITTEN)
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700606
607struct f2fs_map_blocks {
608 block_t m_pblk;
609 block_t m_lblk;
610 unsigned int m_len;
611 unsigned int m_flags;
Chao Yuda859852016-01-26 15:42:58 +0800612 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
Chao Yuc4020b22018-01-11 14:42:30 +0800613 pgoff_t *m_next_extent; /* point to next possible extent */
Hyunchul Leed5097be2017-11-28 09:23:00 +0900614 int m_seg_type;
Chao Yuf9d6d052018-11-13 14:33:45 +0800615 bool m_may_create; /* indicate it is from write path */
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700616};
617
Chao Yue2b4e2b2015-08-19 19:11:19 +0800618/* for flag in get_data_block */
Qiuyang Sunf2220c72017-08-09 17:27:30 +0800619enum {
620 F2FS_GET_BLOCK_DEFAULT,
621 F2FS_GET_BLOCK_FIEMAP,
622 F2FS_GET_BLOCK_BMAP,
Jaegeuk Kim0a4daae2018-09-19 15:28:40 -0700623 F2FS_GET_BLOCK_DIO,
Qiuyang Sunf2220c72017-08-09 17:27:30 +0800624 F2FS_GET_BLOCK_PRE_DIO,
625 F2FS_GET_BLOCK_PRE_AIO,
Chao Yuc4020b22018-01-11 14:42:30 +0800626 F2FS_GET_BLOCK_PRECACHE,
Qiuyang Sunf2220c72017-08-09 17:27:30 +0800627};
Chao Yue2b4e2b2015-08-19 19:11:19 +0800628
Jaegeuk Kim003a3e12015-04-06 19:55:34 -0700629/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900630 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
631 */
632#define FADVISE_COLD_BIT 0x01
Jaegeuk Kim354a3392013-06-14 08:52:35 +0900633#define FADVISE_LOST_PINO_BIT 0x02
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700634#define FADVISE_ENCRYPT_BIT 0x04
Jaegeuk Kime7d55452015-04-29 17:02:18 -0700635#define FADVISE_ENC_NAME_BIT 0x08
Jaegeuk Kim26787232016-11-28 15:33:38 -0800636#define FADVISE_KEEP_SIZE_BIT 0x10
Chao Yub6a06cb2018-02-28 17:07:27 +0800637#define FADVISE_HOT_BIT 0x20
Eric Biggers95ae2512019-07-22 09:26:24 -0700638#define FADVISE_VERITY_BIT 0x40
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900639
Chao Yu797c1cb2018-07-19 23:57:54 +0800640#define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
641
Jaegeuk Kimb5492af2015-04-20 13:44:41 -0700642#define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
643#define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
644#define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
645#define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
646#define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
647#define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700648#define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
649#define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
650#define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
Jaegeuk Kime7d55452015-04-29 17:02:18 -0700651#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
652#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
Jaegeuk Kim26787232016-11-28 15:33:38 -0800653#define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
654#define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
Chao Yub6a06cb2018-02-28 17:07:27 +0800655#define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
656#define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
657#define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
Eric Biggers95ae2512019-07-22 09:26:24 -0700658#define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
659#define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -0700660
Jaegeuk Kimab9fa662014-02-27 20:09:05 +0900661#define DEF_DIR_LEVEL 0
662
Chao Yu2ef79ec2018-05-07 20:28:54 +0800663enum {
664 GC_FAILURE_PIN,
665 GC_FAILURE_ATOMIC,
666 MAX_GC_FAILURE
667};
668
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900669struct f2fs_inode_info {
670 struct inode vfs_inode; /* serve a vfs inode */
671 unsigned long i_flags; /* keep an inode flags for ioctl */
672 unsigned char i_advise; /* use to give file attribute hints */
Jaegeuk Kim38431542014-02-27 18:20:00 +0900673 unsigned char i_dir_level; /* use for dentry level for large dir */
Chao Yu2ef79ec2018-05-07 20:28:54 +0800674 unsigned int i_current_depth; /* only for directory depth */
675 /* for gc failure statistic */
676 unsigned int i_gc_failures[MAX_GC_FAILURE];
Jaegeuk Kim6666e6a2012-12-10 17:52:48 +0900677 unsigned int i_pino; /* parent inode number */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900678 umode_t i_acl_mode; /* keep file acl mode temporarily */
679
680 /* Use below internally in f2fs*/
681 unsigned long flags; /* use to pass per-file flags */
Jaegeuk Kimd928bfb2014-03-20 19:10:08 +0900682 struct rw_semaphore i_sem; /* protect fi info */
Jaegeuk Kim204706c2016-12-02 15:11:32 -0800683 atomic_t dirty_pages; /* # of dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900684 f2fs_hash_t chash; /* hash value of given file name */
685 unsigned int clevel; /* maximum level of given file name */
Jaegeuk Kim88c5c132017-02-14 09:54:37 -0800686 struct task_struct *task; /* lookup and create consistency */
Chao Yub0af6d42017-08-02 23:21:48 +0800687 struct task_struct *cp_task; /* separate cp/wb IO stats*/
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900688 nid_t i_xattr_nid; /* node id that contains xattrs */
Jaegeuk Kim26de9b12016-05-20 20:42:37 -0700689 loff_t last_disk_size; /* lastly written file size */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700690
Chao Yu0abd6752017-07-09 00:13:07 +0800691#ifdef CONFIG_QUOTA
692 struct dquot *i_dquot[MAXQUOTAS];
693
694 /* quota space reservation, managed internally by quota code */
695 qsize_t i_reserved_quota;
696#endif
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700697 struct list_head dirty_list; /* dirty list for dirs and files */
698 struct list_head gdirty_list; /* linked in global dirty list */
Jaegeuk Kim57864ae2017-10-18 19:05:57 -0700699 struct list_head inmem_ilist; /* list for inmem inodes */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700700 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
Jaegeuk Kim7a10f012017-07-24 19:46:29 -0700701 struct task_struct *inmem_task; /* store inmemory task */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -0700702 struct mutex inmem_lock; /* lock for inmemory pages */
Jaegeuk Kim3e72f722015-06-19 17:53:26 -0700703 struct extent_tree *extent_tree; /* cached extent_tree entry */
Chao Yub2532c62018-04-24 10:55:28 +0800704
705 /* avoid racing between foreground op and gc */
706 struct rw_semaphore i_gc_rwsem[2];
Qiuyang Sun5a3a2d82017-05-18 11:06:45 +0800707 struct rw_semaphore i_mmap_sem;
Yunlei He27161f12017-09-07 10:40:54 +0800708 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
Chao Yuf2470372017-07-19 00:19:05 +0800709
Chao Yu7a2af762017-07-19 00:19:06 +0800710 int i_extra_isize; /* size of extra space located in i_addr */
Chao Yu5c571322017-07-26 00:01:41 +0800711 kprojid_t i_projid; /* id for project quota */
Chao Yu6afc6622017-09-06 21:59:50 +0800712 int i_inline_xattr_size; /* inline xattr size */
Arnd Bergmann24b81df2018-06-20 10:02:19 +0200713 struct timespec64 i_crtime; /* inode creation time */
714 struct timespec64 i_disk_time[4];/* inode disk times */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900715};
716
717static inline void get_extent_info(struct extent_info *ext,
Chao Yubd933d42016-05-04 23:19:47 +0800718 struct f2fs_extent *i_ext)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900719{
Chao Yubd933d42016-05-04 23:19:47 +0800720 ext->fofs = le32_to_cpu(i_ext->fofs);
721 ext->blk = le32_to_cpu(i_ext->blk);
722 ext->len = le32_to_cpu(i_ext->len);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900723}
724
725static inline void set_raw_extent(struct extent_info *ext,
726 struct f2fs_extent *i_ext)
727{
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900728 i_ext->fofs = cpu_to_le32(ext->fofs);
Chao Yu4d0b0bd2015-02-05 17:47:25 +0800729 i_ext->blk = cpu_to_le32(ext->blk);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900730 i_ext->len = cpu_to_le32(ext->len);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900731}
732
Chao Yu429511c2015-02-05 17:54:31 +0800733static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
734 u32 blk, unsigned int len)
735{
736 ei->fofs = fofs;
737 ei->blk = blk;
738 ei->len = len;
739}
740
Chao Yu004b6862017-04-14 23:24:55 +0800741static inline bool __is_discard_mergeable(struct discard_info *back,
Chao Yu35ec7d52018-08-06 22:43:50 +0800742 struct discard_info *front, unsigned int max_len)
Chao Yu004b6862017-04-14 23:24:55 +0800743{
Jaegeuk Kim9a997182018-05-24 13:57:26 -0700744 return (back->lstart + back->len == front->lstart) &&
Chao Yu35ec7d52018-08-06 22:43:50 +0800745 (back->len + front->len <= max_len);
Chao Yu004b6862017-04-14 23:24:55 +0800746}
747
748static inline bool __is_discard_back_mergeable(struct discard_info *cur,
Chao Yu35ec7d52018-08-06 22:43:50 +0800749 struct discard_info *back, unsigned int max_len)
Chao Yu004b6862017-04-14 23:24:55 +0800750{
Chao Yu35ec7d52018-08-06 22:43:50 +0800751 return __is_discard_mergeable(back, cur, max_len);
Chao Yu004b6862017-04-14 23:24:55 +0800752}
753
754static inline bool __is_discard_front_mergeable(struct discard_info *cur,
Chao Yu35ec7d52018-08-06 22:43:50 +0800755 struct discard_info *front, unsigned int max_len)
Chao Yu004b6862017-04-14 23:24:55 +0800756{
Chao Yu35ec7d52018-08-06 22:43:50 +0800757 return __is_discard_mergeable(cur, front, max_len);
Chao Yu004b6862017-04-14 23:24:55 +0800758}
759
Chao Yu429511c2015-02-05 17:54:31 +0800760static inline bool __is_extent_mergeable(struct extent_info *back,
761 struct extent_info *front)
762{
763 return (back->fofs + back->len == front->fofs &&
764 back->blk + back->len == front->blk);
765}
766
767static inline bool __is_back_mergeable(struct extent_info *cur,
768 struct extent_info *back)
769{
770 return __is_extent_mergeable(back, cur);
771}
772
773static inline bool __is_front_mergeable(struct extent_info *cur,
774 struct extent_info *front)
775{
776 return __is_extent_mergeable(cur, front);
777}
778
DongOh Shincac5a3d2017-01-30 10:55:18 -0800779extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
Zhikang Zhangb430f722018-09-10 16:18:25 +0800780static inline void __try_update_largest_extent(struct extent_tree *et,
781 struct extent_node *en)
Chao Yu4abd3f52015-09-22 21:07:47 +0800782{
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700783 if (en->ei.len > et->largest.len) {
Chao Yu4abd3f52015-09-22 21:07:47 +0800784 et->largest = en->ei;
Zhikang Zhangb430f722018-09-10 16:18:25 +0800785 et->largest_updated = true;
Jaegeuk Kim205b9822016-05-20 09:52:20 -0700786 }
Chao Yu4abd3f52015-09-22 21:07:47 +0800787}
788
Chao Yu9a4ffdf2017-09-29 13:59:35 +0800789/*
790 * For free nid management
791 */
792enum nid_state {
793 FREE_NID, /* newly added to free nid list */
794 PREALLOC_NID, /* it is preallocated */
795 MAX_NID_STATE,
Chao Yub8559dc2016-10-12 19:28:29 +0800796};
797
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900798struct f2fs_nm_info {
799 block_t nat_blkaddr; /* base disk address of NAT */
800 nid_t max_nid; /* maximum possible node ids */
Chao Yu04d47e62016-11-17 20:53:11 +0800801 nid_t available_nids; /* # of available node ids */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900802 nid_t next_scan_nid; /* the next nid to be scanned */
Jaegeuk Kimcdfc41c2014-03-19 13:31:37 +0900803 unsigned int ram_thresh; /* control the memory footprint */
Chao Yuea1a29a02015-10-12 17:08:48 +0800804 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
Chao Yu2304cb02016-01-18 18:32:58 +0800805 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900806
807 /* NAT cache management */
808 struct radix_tree_root nat_root;/* root of the nat entry cache */
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700809 struct radix_tree_root nat_set_root;/* root of the nat set cache */
Jaegeuk Kimb873b792016-08-04 11:38:25 -0700810 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900811 struct list_head nat_entries; /* cached nat entry list (clean) */
Chao Yu22969152018-08-05 23:08:59 +0800812 spinlock_t nat_list_lock; /* protect clean nat entry list */
Jaegeuk Kim309cc2b2014-09-22 11:40:48 -0700813 unsigned int nat_cnt; /* the # of cached nat entries */
Chao Yuaec71382014-06-24 09:18:20 +0800814 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
Jaegeuk Kim22ad0b62017-02-09 10:38:09 -0800815 unsigned int nat_blocks; /* # of nat blocks */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900816
817 /* free node ids management */
Jaegeuk Kim8a7ed662014-02-21 14:29:35 +0900818 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
Chao Yu9a4ffdf2017-09-29 13:59:35 +0800819 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
820 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
Chao Yub8559dc2016-10-12 19:28:29 +0800821 spinlock_t nid_list_lock; /* protect nid lists ops */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900822 struct mutex build_lock; /* lock for build free nids */
Jaegeuk Kimbb1105e2018-03-09 17:42:28 -0800823 unsigned char **free_nid_bitmap;
Chao Yu4ac91242017-02-23 10:53:49 +0800824 unsigned char *nat_block_bitmap;
Chao Yu586d1492017-03-01 17:09:07 +0800825 unsigned short *free_nid_count; /* free nid count of NAT block */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900826
827 /* for checkpoint */
828 char *nat_bitmap; /* NAT bitmap pointer */
Jaegeuk Kim22ad0b62017-02-09 10:38:09 -0800829
830 unsigned int nat_bits_blocks; /* # of nat bits blocks */
831 unsigned char *nat_bits; /* NAT bits blocks */
832 unsigned char *full_nat_bits; /* full NAT pages */
833 unsigned char *empty_nat_bits; /* empty NAT pages */
Chao Yu599a09b2017-01-07 18:52:01 +0800834#ifdef CONFIG_F2FS_CHECK_FS
835 char *nat_bitmap_mir; /* NAT bitmap mirror */
836#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900837 int bitmap_size; /* bitmap size */
838};
839
840/*
841 * this structure is used as one of function parameters.
842 * all the information are dedicated to a given direct node block determined
843 * by the data offset in a file.
844 */
845struct dnode_of_data {
846 struct inode *inode; /* vfs inode pointer */
847 struct page *inode_page; /* its inode page, NULL is possible */
848 struct page *node_page; /* cached direct node page */
849 nid_t nid; /* node id of the direct node block */
850 unsigned int ofs_in_node; /* data offset in the node page */
851 bool inode_page_locked; /* inode page is locked or not */
Jaegeuk Kim93bae092015-12-22 12:59:54 -0800852 bool node_changed; /* is node block changed */
Chao Yu3cf45742016-01-26 15:40:44 +0800853 char cur_level; /* level of hole node page */
854 char max_level; /* level of current page located */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900855 block_t data_blkaddr; /* block address of the node block */
856};
857
858static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
859 struct page *ipage, struct page *npage, nid_t nid)
860{
Jaegeuk Kimd66d1f72013-01-03 08:57:21 +0900861 memset(dn, 0, sizeof(*dn));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900862 dn->inode = inode;
863 dn->inode_page = ipage;
864 dn->node_page = npage;
865 dn->nid = nid;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900866}
867
868/*
869 * For SIT manager
870 *
871 * By default, there are 6 active log areas across the whole main area.
872 * When considering hot and cold data separation to reduce cleaning overhead,
873 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
874 * respectively.
875 * In the current design, you should not change the numbers intentionally.
876 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
877 * logs individually according to the underlying devices. (default: 6)
878 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
879 * data and 8 for node logs.
880 */
881#define NR_CURSEG_DATA_TYPE (3)
882#define NR_CURSEG_NODE_TYPE (3)
883#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
884
885enum {
886 CURSEG_HOT_DATA = 0, /* directory entry blocks */
887 CURSEG_WARM_DATA, /* data blocks */
888 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
889 CURSEG_HOT_NODE, /* direct node blocks of directory files */
890 CURSEG_WARM_NODE, /* direct node blocks of normal files */
891 CURSEG_COLD_NODE, /* indirect node blocks */
Jaegeuk Kim38aa0882015-01-05 16:02:20 -0800892 NO_CHECK_TYPE,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900893};
894
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900895struct flush_cmd {
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900896 struct completion wait;
Gu Zheng721bd4d2014-09-05 18:31:00 +0800897 struct llist_node llnode;
Chao Yu39d787b2017-09-29 13:59:38 +0800898 nid_t ino;
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900899 int ret;
900};
901
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800902struct flush_cmd_control {
903 struct task_struct *f2fs_issue_flush; /* flush thread */
904 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
Chao Yu8b8dd652017-03-25 17:19:58 +0800905 atomic_t issued_flush; /* # of issued flushes */
Jaegeuk Kim72691af2018-12-13 16:53:57 -0800906 atomic_t queued_flush; /* # of queued flushes */
Gu Zheng721bd4d2014-09-05 18:31:00 +0800907 struct llist_head issue_list; /* list for command issue */
908 struct llist_node *dispatch_list; /* list for command dispatch */
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800909};
910
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900911struct f2fs_sm_info {
912 struct sit_info *sit_info; /* whole segment information */
913 struct free_segmap_info *free_info; /* free segment information */
914 struct dirty_seglist_info *dirty_info; /* dirty segment information */
915 struct curseg_info *curseg_array; /* active segment information */
916
Chao Yu2b603112017-11-02 20:41:03 +0800917 struct rw_semaphore curseg_lock; /* for preventing curseg change */
918
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900919 block_t seg0_blkaddr; /* block address of 0'th segment */
920 block_t main_blkaddr; /* start block address of main area */
921 block_t ssa_blkaddr; /* start block address of SSA area */
922
923 unsigned int segment_count; /* total # of segments */
924 unsigned int main_segments; /* # of segments in main area */
925 unsigned int reserved_segments; /* # of reserved segments */
926 unsigned int ovp_segments; /* # of overprovision segments */
Jaegeuk Kim81eb8d62013-10-24 13:31:34 +0900927
928 /* a threshold to reclaim prefree segments */
929 unsigned int rec_prefree_segments;
Jaegeuk Kim7fd9e542013-11-15 13:55:58 +0900930
Jaegeuk Kimbba681c2015-01-26 17:41:23 -0800931 /* for batched trimming */
932 unsigned int trim_sections; /* # of sections to trim */
933
Chao Yu184a5cd2014-09-04 18:13:01 +0800934 struct list_head sit_entry_set; /* sit entry set list */
935
Jaegeuk Kim216fbd62013-11-07 13:13:42 +0900936 unsigned int ipu_policy; /* in-place-update policy */
937 unsigned int min_ipu_util; /* in-place-update threshold */
Jaegeuk Kimc1ce1b02014-09-10 16:53:02 -0700938 unsigned int min_fsync_blocks; /* threshold for fsync */
Jaegeuk Kim853137c2018-08-09 17:53:34 -0700939 unsigned int min_seq_blocks; /* threshold for sequential blocks */
Jaegeuk Kimef095d12017-03-24 20:05:13 -0400940 unsigned int min_hot_blocks; /* threshold for hot block allocation */
Chao Yua2a12b62017-10-28 16:52:33 +0800941 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
Jaegeuk Kim6b4afdd2014-04-02 15:34:36 +0900942
943 /* for flush command control */
Jaegeuk Kimb01a9202017-01-09 14:13:03 -0800944 struct flush_cmd_control *fcc_info;
Gu Zhenga688b9d9e2014-04-27 14:21:21 +0800945
Jaegeuk Kim0b54fb82017-01-11 14:40:24 -0800946 /* for discard command control */
947 struct discard_cmd_control *dcc_info;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900948};
949
950/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900951 * For superblock
952 */
953/*
954 * COUNT_TYPE for monitoring
955 *
956 * f2fs monitors the number of several block types such as on-writeback,
957 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
958 */
Chao Yu36951b32016-11-16 10:41:20 +0800959#define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900960enum count_type {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900961 F2FS_DIRTY_DENTS,
Chao Yuc227f912015-12-16 13:09:20 +0800962 F2FS_DIRTY_DATA,
Jaegeuk Kim2c8a4a22017-11-13 17:46:38 -0800963 F2FS_DIRTY_QDATA,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900964 F2FS_DIRTY_NODES,
965 F2FS_DIRTY_META,
Jaegeuk Kim8dcf2ff72014-12-05 17:18:15 -0800966 F2FS_INMEM_PAGES,
Jaegeuk Kim0f18b462016-05-20 11:10:10 -0700967 F2FS_DIRTY_IMETA,
Chao Yu36951b32016-11-16 10:41:20 +0800968 F2FS_WB_CP_DATA,
969 F2FS_WB_DATA,
Jaegeuk Kim5f9abab2018-10-16 10:20:53 -0700970 F2FS_RD_DATA,
971 F2FS_RD_NODE,
972 F2FS_RD_META,
Chao Yu02b16d02018-11-12 00:46:46 +0800973 F2FS_DIO_WRITE,
974 F2FS_DIO_READ,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900975 NR_COUNT_TYPE,
976};
977
978/*
arter97e1c42042014-08-06 23:22:50 +0900979 * The below are the page types of bios used in submit_bio().
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900980 * The available types are:
981 * DATA User data pages. It operates as async mode.
982 * NODE Node pages. It operates as async mode.
983 * META FS metadata pages such as SIT, NAT, CP.
984 * NR_PAGE_TYPE The number of page types.
985 * META_FLUSH Make sure the previous pages are written
986 * with waiting the bio's completion
987 * ... Only can be used with META.
988 */
Jaegeuk Kim7d5e5102013-11-18 17:13:35 +0900989#define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
Jaegeuk Kim39a53e02012-11-28 13:37:31 +0900990enum page_type {
991 DATA,
992 NODE,
993 META,
994 NR_PAGE_TYPE,
995 META_FLUSH,
Jaegeuk Kim8ce67cb2015-03-17 17:58:08 -0700996 INMEM, /* the below types are used by tracepoints only. */
997 INMEM_DROP,
Jaegeuk Kim8c242db2017-03-17 09:55:52 +0800998 INMEM_INVALIDATE,
Chao Yu28bc1062016-02-06 14:40:34 +0800999 INMEM_REVOKE,
Jaegeuk Kim8ce67cb2015-03-17 17:58:08 -07001000 IPU,
1001 OPU,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001002};
1003
Jaegeuk Kima912b542017-05-10 11:18:25 -07001004enum temp_type {
1005 HOT = 0, /* must be zero for meta bio */
1006 WARM,
1007 COLD,
1008 NR_TEMP_TYPE,
1009};
1010
Jaegeuk Kimcc156202017-05-12 13:51:34 -07001011enum need_lock_type {
1012 LOCK_REQ = 0,
1013 LOCK_DONE,
1014 LOCK_RETRY,
1015};
1016
Chao Yua5fd5052017-11-06 22:51:45 +08001017enum cp_reason_type {
1018 CP_NO_NEEDED,
1019 CP_NON_REGULAR,
1020 CP_HARDLINK,
1021 CP_SB_NEED_CP,
1022 CP_WRONG_PINO,
1023 CP_NO_SPC_ROLL,
1024 CP_NODE_NEED_CP,
1025 CP_FASTBOOT_MODE,
1026 CP_SPEC_LOG_NUM,
Jaegeuk Kim0a007b972017-12-28 08:09:44 -08001027 CP_RECOVER_DIR,
Chao Yua5fd5052017-11-06 22:51:45 +08001028};
1029
Chao Yub0af6d42017-08-02 23:21:48 +08001030enum iostat_type {
1031 APP_DIRECT_IO, /* app direct IOs */
1032 APP_BUFFERED_IO, /* app buffered IOs */
1033 APP_WRITE_IO, /* app write IOs */
1034 APP_MAPPED_IO, /* app mapped IOs */
1035 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1036 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1037 FS_META_IO, /* meta IOs from kworker/reclaimer */
1038 FS_GC_DATA_IO, /* data IOs from forground gc */
1039 FS_GC_NODE_IO, /* node IOs from forground gc */
1040 FS_CP_DATA_IO, /* data IOs from checkpoint */
1041 FS_CP_NODE_IO, /* node IOs from checkpoint */
1042 FS_CP_META_IO, /* meta IOs from checkpoint */
1043 FS_DISCARD, /* discard */
1044 NR_IO_TYPE,
1045};
1046
Jaegeuk Kim458e6192013-12-11 13:54:01 +09001047struct f2fs_io_info {
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07001048 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
Chao Yu39d787b2017-09-29 13:59:38 +08001049 nid_t ino; /* inode number */
Gu Zheng7e8f2302013-12-20 18:17:49 +08001050 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
Jaegeuk Kima912b542017-05-10 11:18:25 -07001051 enum temp_type temp; /* contains HOT/WARM/COLD */
Mike Christie04d328d2016-06-05 14:31:55 -05001052 int op; /* contains REQ_OP_ */
Christoph Hellwigef295ec2016-10-28 08:48:16 -06001053 int op_flags; /* req_flag_bits */
Chao Yu7a9d7542016-02-22 18:36:38 +08001054 block_t new_blkaddr; /* new block address to be written */
Chao Yu28bc1062016-02-06 14:40:34 +08001055 block_t old_blkaddr; /* old block address before Cow */
Jaegeuk Kim05ca3632015-04-23 14:38:15 -07001056 struct page *page; /* page to be written */
Jaegeuk Kim4375a332015-04-23 12:04:33 -07001057 struct page *encrypted_page; /* encrypted page */
Chao Yufb830fc2017-05-19 23:37:01 +08001058 struct list_head list; /* serialize IOs */
Jaegeuk Kimd68f7352017-02-03 17:44:04 -08001059 bool submitted; /* indicate IO submission */
Jaegeuk Kimcc156202017-05-12 13:51:34 -07001060 int need_lock; /* indicate we need to lock cp_rwsem */
Chao Yufb830fc2017-05-19 23:37:01 +08001061 bool in_list; /* indicate fio is in io_list */
Chao Yu6dc3a122019-04-15 15:26:31 +08001062 bool is_por; /* indicate IO is from recovery or not */
Chao Yufe16efe2018-05-28 23:47:18 +08001063 bool retry; /* need to reallocate block address */
Chao Yub0af6d42017-08-02 23:21:48 +08001064 enum iostat_type io_type; /* io type */
Yufen Yu578c6472018-01-09 19:33:39 +08001065 struct writeback_control *io_wbc; /* writeback control */
Chao Yu8648de22019-02-19 16:15:29 +08001066 struct bio **bio; /* bio for ipu */
1067 sector_t *last_block; /* last block number in bio */
Chao Yu77357302018-07-17 00:02:17 +08001068 unsigned char version; /* version of the node */
Jaegeuk Kim458e6192013-12-11 13:54:01 +09001069};
1070
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +03001071#define is_read_io(rw) ((rw) == READ)
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +09001072struct f2fs_bio_info {
Jaegeuk Kim458e6192013-12-11 13:54:01 +09001073 struct f2fs_sb_info *sbi; /* f2fs superblock */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +09001074 struct bio *bio; /* bios to merge */
1075 sector_t last_block_in_bio; /* last block number */
Jaegeuk Kim458e6192013-12-11 13:54:01 +09001076 struct f2fs_io_info fio; /* store buffered io info. */
Chao Yudf0f8dc2014-03-22 14:57:23 +08001077 struct rw_semaphore io_rwsem; /* blocking op for bio */
Chao Yufb830fc2017-05-19 23:37:01 +08001078 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1079 struct list_head io_list; /* track fios */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +09001080};
1081
Jaegeuk Kim3c62be12016-10-06 19:02:05 -07001082#define FDEV(i) (sbi->devs[i])
1083#define RDEV(i) (raw_super->devs[i])
1084struct f2fs_dev_info {
1085 struct block_device *bdev;
1086 char path[MAX_PATH_LEN];
1087 unsigned int total_segments;
1088 block_t start_blk;
1089 block_t end_blk;
1090#ifdef CONFIG_BLK_DEV_ZONED
Damien Le Moal95175da2019-03-16 09:13:07 +09001091 unsigned int nr_blkz; /* Total number of zones */
1092 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
Jaegeuk Kim3c62be12016-10-06 19:02:05 -07001093#endif
1094};
1095
Chao Yuc227f912015-12-16 13:09:20 +08001096enum inode_type {
1097 DIR_INODE, /* for dirty dir inode */
1098 FILE_INODE, /* for dirty regular/symlink inode */
Jaegeuk Kim0f18b462016-05-20 11:10:10 -07001099 DIRTY_META, /* for all dirtied inode metadata */
Jaegeuk Kim57864ae2017-10-18 19:05:57 -07001100 ATOMIC_FILE, /* for all atomic files */
Chao Yuc227f912015-12-16 13:09:20 +08001101 NR_INODE_TYPE,
1102};
1103
Chao Yu67298802014-11-18 11:18:36 +08001104/* for inner inode cache management */
1105struct inode_management {
1106 struct radix_tree_root ino_root; /* ino entry array */
1107 spinlock_t ino_lock; /* for ino entry lock */
1108 struct list_head ino_list; /* inode list head */
1109 unsigned long ino_num; /* number of entries */
1110};
1111
Chao Yucaf00472015-01-28 17:48:42 +08001112/* For s_flag in struct f2fs_sb_info */
1113enum {
1114 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1115 SBI_IS_CLOSE, /* specify unmounting */
1116 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1117 SBI_POR_DOING, /* recovery is doing or not */
Jaegeuk Kimdf728b02016-03-23 17:05:27 -07001118 SBI_NEED_SB_WRITE, /* need to recover superblock */
Jaegeuk Kimbbf156f2016-08-29 18:23:45 -07001119 SBI_NEED_CP, /* need to checkpoint */
Jaegeuk Kim83a3bfd2018-06-21 13:46:23 -07001120 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
Chao Yu13787522018-08-22 17:11:05 +08001121 SBI_IS_RECOVERED, /* recovered orphan/data */
Daniel Rosenberg43549942018-08-20 19:21:43 -07001122 SBI_CP_DISABLED, /* CP was disabled last mount */
Jaegeuk Kimdb610a62019-01-24 17:48:38 -08001123 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
Chao Yuaf033b22018-09-20 20:05:00 +08001124 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1125 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1126 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
Qiuyang Sun04f0b2e2019-06-05 11:33:25 +08001127 SBI_IS_RESIZEFS, /* resizefs is in process */
Chao Yucaf00472015-01-28 17:48:42 +08001128};
1129
Jaegeuk Kim6beceb52016-01-08 15:51:50 -08001130enum {
1131 CP_TIME,
Jaegeuk Kimd0239e12016-01-08 16:57:48 -08001132 REQ_TIME,
Sahitya Tummalaa7d10cf2018-09-19 14:18:47 +05301133 DISCARD_TIME,
1134 GC_TIME,
Daniel Rosenberg43549942018-08-20 19:21:43 -07001135 DISABLE_TIME,
Jaegeuk Kim03f2c022019-01-14 10:42:11 -08001136 UMOUNT_DISCARD_TIMEOUT,
Jaegeuk Kim6beceb52016-01-08 15:51:50 -08001137 MAX_TIME,
1138};
1139
Hyunchul Lee0cdd3192018-01-31 11:36:57 +09001140enum {
Jaegeuk Kim5b0e9532018-05-07 14:22:40 -07001141 GC_NORMAL,
1142 GC_IDLE_CB,
1143 GC_IDLE_GREEDY,
1144 GC_URGENT,
1145};
1146
1147enum {
Hyunchul Lee0cdd3192018-01-31 11:36:57 +09001148 WHINT_MODE_OFF, /* not pass down write hints */
1149 WHINT_MODE_USER, /* try to pass down hints given by users */
Hyunchul Leef2e703f2018-01-31 11:36:58 +09001150 WHINT_MODE_FS, /* pass down hints with F2FS policy */
Hyunchul Lee0cdd3192018-01-31 11:36:57 +09001151};
1152
Jaegeuk Kim07939622018-02-18 08:50:49 -08001153enum {
1154 ALLOC_MODE_DEFAULT, /* stay default */
1155 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1156};
1157
Junling Zheng93cf93f2018-03-07 12:07:49 +08001158enum fsync_mode {
1159 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1160 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
Jaegeuk Kimd6290812018-05-25 18:02:58 -07001161 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
Junling Zheng93cf93f2018-03-07 12:07:49 +08001162};
1163
Chandan Rajendra643fa962018-12-12 15:20:12 +05301164#ifdef CONFIG_FS_ENCRYPTION
Sheng Yongff62af22018-03-15 18:51:42 +08001165#define DUMMY_ENCRYPTION_ENABLED(sbi) \
1166 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1167#else
1168#define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1169#endif
1170
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001171struct f2fs_sb_info {
1172 struct super_block *sb; /* pointer to VFS super block */
Jaegeuk Kim5e176d52013-06-28 12:47:01 +09001173 struct proc_dir_entry *s_proc; /* proc entry */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001174 struct f2fs_super_block *raw_super; /* raw super block pointer */
Chao Yu846ae672018-02-26 22:04:13 +08001175 struct rw_semaphore sb_lock; /* lock for raw super block */
Chao Yue8240f62015-12-15 17:19:26 +08001176 int valid_super_block; /* valid super block no */
Chao Yufadb2fb2016-09-20 10:29:47 +08001177 unsigned long s_flag; /* flags for sbi */
Jaegeuk Kim853137c2018-08-09 17:53:34 -07001178 struct mutex writepages; /* mutex for writepages() */
Daniel Rosenberg5aba5432019-07-23 16:05:28 -07001179#ifdef CONFIG_UNICODE
1180 struct unicode_map *s_encoding;
1181 __u16 s_encoding_flags;
1182#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001183
Damien Le Moal178053e2016-10-28 17:45:05 +09001184#ifdef CONFIG_BLK_DEV_ZONED
Damien Le Moal178053e2016-10-28 17:45:05 +09001185 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1186 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
Damien Le Moal178053e2016-10-28 17:45:05 +09001187#endif
1188
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001189 /* for node-related operations */
1190 struct f2fs_nm_info *nm_info; /* node manager */
1191 struct inode *node_inode; /* cache node blocks */
1192
1193 /* for segment-related operations */
1194 struct f2fs_sm_info *sm_info; /* segment manager */
Jaegeuk Kim1ff7bd32013-11-19 12:47:22 +09001195
1196 /* for bio operations */
Jaegeuk Kima912b542017-05-10 11:18:25 -07001197 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
Chao Yu107a8052018-05-26 09:00:13 +08001198 /* keep migration IO order for LFS mode */
1199 struct rw_semaphore io_order_lock;
Jaegeuk Kim0a595eb2016-12-14 10:12:56 -08001200 mempool_t *write_io_dummy; /* Dummy pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001201
1202 /* for checkpoint */
1203 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
Jaegeuk Kim8508e442016-11-24 12:45:15 -08001204 int cur_cp_pack; /* remain current cp pack */
Chao Yuaaec2b12016-09-20 11:04:18 +08001205 spinlock_t cp_lock; /* for flag in ckpt */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001206 struct inode *meta_inode; /* cache meta blocks */
Jaegeuk Kim39936832012-11-22 16:21:29 +09001207 struct mutex cp_mutex; /* checkpoint procedure lock */
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001208 struct rw_semaphore cp_rwsem; /* blocking FS operations */
Chao Yub3582c62014-07-03 18:58:39 +08001209 struct rw_semaphore node_write; /* locking node writes */
Yunlei He59c90812017-03-13 20:22:18 +08001210 struct rw_semaphore node_change; /* locking node change */
Changman Leefb51b5e2013-11-07 12:48:25 +09001211 wait_queue_head_t cp_wait;
Jaegeuk Kim6beceb52016-01-08 15:51:50 -08001212 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1213 long interval_time[MAX_TIME]; /* to store thresholds */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001214
Chao Yu67298802014-11-18 11:18:36 +08001215 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
Jaegeuk Kim6451e042014-07-25 15:47:17 -07001216
Chao Yu50fa53e2018-08-02 23:03:19 +08001217 spinlock_t fsync_node_lock; /* for node entry lock */
1218 struct list_head fsync_node_list; /* node list head */
1219 unsigned int fsync_seg_id; /* sequence id */
1220 unsigned int fsync_node_num; /* number of node entries */
1221
Jaegeuk Kim6451e042014-07-25 15:47:17 -07001222 /* for orphan inode, use 0'th array */
Gu Zheng0d47c1a2013-12-26 18:24:19 +08001223 unsigned int max_orphans; /* max orphan inodes */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001224
Chao Yuc227f912015-12-16 13:09:20 +08001225 /* for inode management */
1226 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1227 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
Chao Yu040d2bb2019-05-20 17:36:59 +08001228 struct mutex flush_lock; /* for flush exclusion */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001229
Chao Yu13054c52015-02-05 17:52:58 +08001230 /* for extent tree cache */
1231 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
Yunlei He5e8256a2017-02-23 19:39:59 +08001232 struct mutex extent_tree_lock; /* locking extent radix tree */
Chao Yu13054c52015-02-05 17:52:58 +08001233 struct list_head extent_list; /* lru list for shrinker */
1234 spinlock_t extent_lock; /* locking extent lru list */
Jaegeuk Kim7441cce2015-12-21 19:20:15 -08001235 atomic_t total_ext_tree; /* extent tree count */
Jaegeuk Kim137d09f2015-12-31 15:02:16 -08001236 struct list_head zombie_list; /* extent zombie tree list */
Jaegeuk Kim74fd8d92015-12-21 19:25:50 -08001237 atomic_t total_zombie_tree; /* extent zombie tree count */
Chao Yu13054c52015-02-05 17:52:58 +08001238 atomic_t total_ext_node; /* extent info count */
1239
arter97e1c42042014-08-06 23:22:50 +09001240 /* basic filesystem units */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001241 unsigned int log_sectors_per_block; /* log2 sectors per block */
1242 unsigned int log_blocksize; /* log2 block size */
1243 unsigned int blocksize; /* block size */
1244 unsigned int root_ino_num; /* root inode number*/
1245 unsigned int node_ino_num; /* node inode number*/
1246 unsigned int meta_ino_num; /* meta inode number*/
1247 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1248 unsigned int blocks_per_seg; /* blocks per segment */
1249 unsigned int segs_per_sec; /* segments per section */
1250 unsigned int secs_per_zone; /* sections per zone */
1251 unsigned int total_sections; /* total section count */
Qiuyang Sun04f0b2e2019-06-05 11:33:25 +08001252 struct mutex resize_mutex; /* for resize exclusion */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001253 unsigned int total_node_count; /* total node block count */
1254 unsigned int total_valid_node_count; /* valid node block count */
Chao Yue0afc4d2015-12-31 14:35:37 +08001255 loff_t max_file_blocks; /* max block index of file */
Jaegeuk Kimab9fa662014-02-27 20:09:05 +09001256 int dir_level; /* directory level */
Sheng Yongf6df8f22017-11-22 18:23:38 +08001257 int readdir_ra; /* readahead inode in readdir */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001258
1259 block_t user_block_count; /* # of user blocks */
1260 block_t total_valid_block_count; /* # of valid blocks */
Jaegeuk Kima66cdd92015-04-30 22:37:50 -07001261 block_t discard_blks; /* discard command candidats */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001262 block_t last_valid_block_count; /* for recovery */
Chao Yudaeb4332017-06-26 16:24:41 +08001263 block_t reserved_blocks; /* configurable reserved blocks */
Yunlong Song80d42142017-10-27 20:45:05 +08001264 block_t current_reserved_blocks; /* current reserved blocks */
Chao Yudaeb4332017-06-26 16:24:41 +08001265
Daniel Rosenberg43549942018-08-20 19:21:43 -07001266 /* Additional tracking for no checkpoint mode */
1267 block_t unusable_block_count; /* # of blocks saved by last cp */
1268
Chao Yu292c196a2017-11-16 16:59:14 +08001269 unsigned int nquota_files; /* # of quota sysfile */
Jaegeuk Kimdb6ec532019-05-29 10:58:45 -07001270 struct rw_semaphore quota_sem; /* blocking cp for flags */
Chao Yu292c196a2017-11-16 16:59:14 +08001271
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001272 /* # of pages, see count_type */
Jaegeuk Kim35782b22016-10-20 19:09:57 -07001273 atomic_t nr_pages[NR_COUNT_TYPE];
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07001274 /* # of allocated blocks */
1275 struct percpu_counter alloc_valid_block_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001276
Jaegeuk Kim687de7f2017-03-28 18:07:38 -07001277 /* writeback control */
Chao Yuc29fd0c2018-06-04 23:20:36 +08001278 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
Jaegeuk Kim687de7f2017-03-28 18:07:38 -07001279
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07001280 /* valid inode count */
1281 struct percpu_counter total_valid_inode_count;
1282
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001283 struct f2fs_mount_info mount_opt; /* mount options */
1284
1285 /* for cleaning operations */
1286 struct mutex gc_mutex; /* mutex for GC */
1287 struct f2fs_gc_kthread *gc_thread; /* GC thread */
Jaegeuk Kim5ec4e492013-03-31 13:26:03 +09001288 unsigned int cur_victim_sec; /* current victim section num */
Jaegeuk Kim5b0e9532018-05-07 14:22:40 -07001289 unsigned int gc_mode; /* current GC state */
Chao Yue3080b02018-10-24 18:37:27 +08001290 unsigned int next_victim_seg[2]; /* next segment in victim section */
Chao Yu2ef79ec2018-05-07 20:28:54 +08001291 /* for skip statistic */
1292 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
Jaegeuk Kim6f8d4452018-07-25 12:11:56 +09001293 unsigned long long skipped_gc_rwsem; /* FG_GC only */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001294
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08001295 /* threshold for gc trials on pinned files */
1296 u64 gc_pin_file_threshold;
1297
Jaegeuk Kimb1c57c12014-01-08 13:45:08 +09001298 /* maximum # of trials to find a victim segment for SSR and GC */
1299 unsigned int max_victim_search;
Chao Yue3080b02018-10-24 18:37:27 +08001300 /* migration granularity of garbage collection, unit: segment */
1301 unsigned int migration_granularity;
Jaegeuk Kimb1c57c12014-01-08 13:45:08 +09001302
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001303 /*
1304 * for stat information.
1305 * one is for the LFS mode, and the other is for the SSR mode.
1306 */
Namjae Jeon35b09d82013-05-23 22:57:53 +09001307#ifdef CONFIG_F2FS_STAT_FS
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001308 struct f2fs_stat_info *stat_info; /* FS status information */
Chao Yub63e7be2018-09-29 18:31:27 +08001309 atomic_t meta_count[META_MAX]; /* # of meta blocks */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001310 unsigned int segment_count[2]; /* # of allocated segments */
1311 unsigned int block_count[2]; /* # of allocated blocks */
Changman Leeb9a2c252014-12-24 02:16:54 +09001312 atomic_t inplace_count; /* # of inplace update */
Chao Yu5b7ee372015-09-30 17:38:48 +08001313 atomic64_t total_hit_ext; /* # of lookup extent cache */
1314 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1315 atomic64_t read_hit_largest; /* # of hit largest extent node */
1316 atomic64_t read_hit_cached; /* # of hit cached extent node */
Chao Yud5e8f6c2015-07-15 17:28:53 +08001317 atomic_t inline_xattr; /* # of inline_xattr inodes */
Chao Yu03e14d52014-12-08 19:08:20 +08001318 atomic_t inline_inode; /* # of inline_data inodes */
1319 atomic_t inline_dir; /* # of inline_dentry inodes */
Jaegeuk Kim26a28a02016-12-28 13:55:09 -08001320 atomic_t aw_cnt; /* # of atomic writes */
Chao Yu648d50b2017-03-22 17:23:45 +08001321 atomic_t vw_cnt; /* # of volatile writes */
Jaegeuk Kim26a28a02016-12-28 13:55:09 -08001322 atomic_t max_aw_cnt; /* max # of atomic writes */
Chao Yu648d50b2017-03-22 17:23:45 +08001323 atomic_t max_vw_cnt; /* max # of volatile writes */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001324 int bg_gc; /* background gc calls */
Chao Yu274bd9b2018-09-29 18:31:28 +08001325 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1326 unsigned int other_skip_bggc; /* skip background gc for other reasons */
Chao Yu33fbd512015-12-17 17:14:44 +08001327 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
Namjae Jeon35b09d82013-05-23 22:57:53 +09001328#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001329 spinlock_t stat_lock; /* lock for stat operations */
Namjae Jeonb59d0ba2013-08-04 23:09:40 +09001330
Chao Yub0af6d42017-08-02 23:21:48 +08001331 /* For app/fs IO statistics */
1332 spinlock_t iostat_lock;
1333 unsigned long long write_iostat[NR_IO_TYPE];
1334 bool iostat_enable;
1335
Namjae Jeonb59d0ba2013-08-04 23:09:40 +09001336 /* For sysfs suppport */
1337 struct kobject s_kobj;
1338 struct completion s_kobj_unregister;
Jaegeuk Kim2658e502015-06-19 12:01:21 -07001339
1340 /* For shrinker support */
1341 struct list_head s_list;
Jaegeuk Kim3c62be12016-10-06 19:02:05 -07001342 int s_ndevs; /* number of devices */
1343 struct f2fs_dev_info *devs; /* for device list */
Chao Yu1228b482017-09-29 13:59:39 +08001344 unsigned int dirty_device; /* for checkpoint data flush */
1345 spinlock_t dev_lock; /* protect dirty_device */
Jaegeuk Kim2658e502015-06-19 12:01:21 -07001346 struct mutex umount_mutex;
1347 unsigned int shrinker_run_no;
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +08001348
1349 /* For write statistics */
1350 u64 sectors_written_start;
1351 u64 kbytes_written;
Keith Mok43b65732016-03-02 12:04:24 -08001352
1353 /* Reference to checksum algorithm driver via cryptoapi */
1354 struct crypto_shash *s_chksum_driver;
Chao Yu1ecc0c52016-09-23 21:30:09 +08001355
Chao Yu704956e2017-07-31 20:19:09 +08001356 /* Precomputed FS UUID checksum for seeding other checksums */
1357 __u32 s_chksum_seed;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001358};
1359
Chao Yu02b16d02018-11-12 00:46:46 +08001360struct f2fs_private_dio {
1361 struct inode *inode;
1362 void *orig_private;
1363 bio_end_io_t *orig_end_io;
1364 bool write;
1365};
1366
Chao Yu1ecc0c52016-09-23 21:30:09 +08001367#ifdef CONFIG_F2FS_FAULT_INJECTION
Chao Yu22d7ea12018-08-22 17:17:47 +08001368#define f2fs_show_injection_info(type) \
Sakari Ailusd75f7732019-03-25 21:32:28 +02001369 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pS\n", \
Chao Yu22d7ea12018-08-22 17:17:47 +08001370 KERN_INFO, f2fs_fault_name[type], \
Chao Yu55523512017-02-25 11:08:28 +08001371 __func__, __builtin_return_address(0))
Chao Yu1ecc0c52016-09-23 21:30:09 +08001372static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1373{
Chao Yu63189b72018-03-08 14:22:56 +08001374 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
Chao Yu1ecc0c52016-09-23 21:30:09 +08001375
1376 if (!ffi->inject_rate)
1377 return false;
1378
1379 if (!IS_FAULT_SET(ffi, type))
1380 return false;
1381
1382 atomic_inc(&ffi->inject_ops);
1383 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1384 atomic_set(&ffi->inject_ops, 0);
Chao Yu1ecc0c52016-09-23 21:30:09 +08001385 return true;
1386 }
1387 return false;
1388}
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02001389#else
1390#define f2fs_show_injection_info(type) do { } while (0)
1391static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1392{
1393 return false;
1394}
Chao Yu1ecc0c52016-09-23 21:30:09 +08001395#endif
1396
Damien Le Moal09168782019-03-16 09:13:06 +09001397/*
1398 * Test if the mounted volume is a multi-device volume.
1399 * - For a single regular disk volume, sbi->s_ndevs is 0.
1400 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1401 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1402 */
1403static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1404{
1405 return sbi->s_ndevs > 1;
1406}
1407
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +08001408/* For write statistics. Suppose sector size is 512 bytes,
1409 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1410 */
1411#define BD_PART_WRITTEN(s) \
Michael Callahandbae2c52018-07-18 04:47:38 -07001412(((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +03001413 (s)->sectors_written_start) >> 1)
Shuoran Liu8f1dbbb2016-01-27 09:57:30 +08001414
Jaegeuk Kim6beceb52016-01-08 15:51:50 -08001415static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1416{
Sahitya Tummalaa7d10cf2018-09-19 14:18:47 +05301417 unsigned long now = jiffies;
1418
1419 sbi->last_time[type] = now;
1420
1421 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1422 if (type == REQ_TIME) {
1423 sbi->last_time[DISCARD_TIME] = now;
1424 sbi->last_time[GC_TIME] = now;
1425 }
Jaegeuk Kim6beceb52016-01-08 15:51:50 -08001426}
1427
1428static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1429{
Arnd Bergmann6bccfa12017-10-19 11:52:47 +02001430 unsigned long interval = sbi->interval_time[type] * HZ;
Jaegeuk Kim6beceb52016-01-08 15:51:50 -08001431
1432 return time_after(jiffies, sbi->last_time[type] + interval);
1433}
1434
Sahitya Tummalaa7d10cf2018-09-19 14:18:47 +05301435static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1436 int type)
1437{
1438 unsigned long interval = sbi->interval_time[type] * HZ;
1439 unsigned int wait_ms = 0;
1440 long delta;
1441
1442 delta = (sbi->last_time[type] + interval) - jiffies;
1443 if (delta > 0)
1444 wait_ms = jiffies_to_msecs(delta);
1445
1446 return wait_ms;
1447}
1448
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001449/*
1450 * Inline functions
1451 */
Chao Yu416d2db2017-11-30 19:28:21 +08001452static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
Chao Yu704956e2017-07-31 20:19:09 +08001453 const void *address, unsigned int length)
1454{
1455 struct {
1456 struct shash_desc shash;
1457 char ctx[4];
1458 } desc;
1459 int err;
1460
1461 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1462
1463 desc.shash.tfm = sbi->s_chksum_driver;
Chao Yu704956e2017-07-31 20:19:09 +08001464 *(u32 *)desc.ctx = crc;
1465
1466 err = crypto_shash_update(&desc.shash, address, length);
1467 BUG_ON(err);
1468
1469 return *(u32 *)desc.ctx;
1470}
1471
Chao Yu416d2db2017-11-30 19:28:21 +08001472static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1473 unsigned int length)
1474{
1475 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1476}
1477
1478static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1479 void *buf, size_t buf_size)
1480{
1481 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1482}
1483
1484static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1485 const void *address, unsigned int length)
1486{
1487 return __f2fs_crc32(sbi, crc, address, length);
1488}
1489
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001490static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1491{
1492 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1493}
1494
1495static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1496{
1497 return sb->s_fs_info;
1498}
1499
Jaegeuk Kim40813632014-09-02 15:31:18 -07001500static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1501{
1502 return F2FS_SB(inode->i_sb);
1503}
1504
1505static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1506{
1507 return F2FS_I_SB(mapping->host);
1508}
1509
1510static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1511{
Jaegeuk Kim4969c062019-07-01 19:15:29 -07001512 return F2FS_M_SB(page_file_mapping(page));
Jaegeuk Kim40813632014-09-02 15:31:18 -07001513}
1514
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001515static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1516{
1517 return (struct f2fs_super_block *)(sbi->raw_super);
1518}
1519
1520static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1521{
1522 return (struct f2fs_checkpoint *)(sbi->ckpt);
1523}
1524
Gu Zheng45590712013-07-15 17:57:38 +08001525static inline struct f2fs_node *F2FS_NODE(struct page *page)
1526{
1527 return (struct f2fs_node *)page_address(page);
1528}
1529
Jaegeuk Kim58bfaf42013-12-26 16:30:41 +09001530static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1531{
1532 return &((struct f2fs_node *)page_address(page))->i;
1533}
1534
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001535static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1536{
1537 return (struct f2fs_nm_info *)(sbi->nm_info);
1538}
1539
1540static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1541{
1542 return (struct f2fs_sm_info *)(sbi->sm_info);
1543}
1544
1545static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1546{
1547 return (struct sit_info *)(SM_I(sbi)->sit_info);
1548}
1549
1550static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1551{
1552 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1553}
1554
1555static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1556{
1557 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1558}
1559
Gu Zheng9df27d92014-01-20 18:37:04 +08001560static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1561{
1562 return sbi->meta_inode->i_mapping;
1563}
1564
Jaegeuk Kim4ef51a82014-01-21 18:51:16 +09001565static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1566{
1567 return sbi->node_inode->i_mapping;
1568}
1569
Chao Yucaf00472015-01-28 17:48:42 +08001570static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001571{
Chao Yufadb2fb2016-09-20 10:29:47 +08001572 return test_bit(type, &sbi->s_flag);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001573}
1574
Chao Yucaf00472015-01-28 17:48:42 +08001575static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001576{
Chao Yufadb2fb2016-09-20 10:29:47 +08001577 set_bit(type, &sbi->s_flag);
Chao Yucaf00472015-01-28 17:48:42 +08001578}
1579
1580static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1581{
Chao Yufadb2fb2016-09-20 10:29:47 +08001582 clear_bit(type, &sbi->s_flag);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001583}
1584
Jaegeuk Kimd71b5562013-08-09 15:03:21 +09001585static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1586{
1587 return le64_to_cpu(cp->checkpoint_ver);
1588}
1589
Jaegeuk Kimea676732017-10-06 09:14:28 -07001590static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1591{
1592 if (type < F2FS_MAX_QUOTAS)
1593 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1594 return 0;
1595}
1596
Kinglong Meeced2c7e2017-02-25 19:53:39 +08001597static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1598{
1599 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1600 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1601}
1602
Chao Yuaaec2b12016-09-20 11:04:18 +08001603static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001604{
1605 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Chao Yuaaec2b12016-09-20 11:04:18 +08001606
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001607 return ckpt_flags & f;
1608}
1609
Chao Yuaaec2b12016-09-20 11:04:18 +08001610static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001611{
Chao Yuaaec2b12016-09-20 11:04:18 +08001612 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1613}
1614
1615static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1616{
1617 unsigned int ckpt_flags;
1618
1619 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001620 ckpt_flags |= f;
1621 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1622}
1623
Chao Yuaaec2b12016-09-20 11:04:18 +08001624static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001625{
Chao Yud1aa2452017-07-07 14:10:15 +08001626 unsigned long flags;
1627
1628 spin_lock_irqsave(&sbi->cp_lock, flags);
Chao Yuaaec2b12016-09-20 11:04:18 +08001629 __set_ckpt_flags(F2FS_CKPT(sbi), f);
Chao Yud1aa2452017-07-07 14:10:15 +08001630 spin_unlock_irqrestore(&sbi->cp_lock, flags);
Chao Yuaaec2b12016-09-20 11:04:18 +08001631}
1632
1633static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1634{
1635 unsigned int ckpt_flags;
1636
1637 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001638 ckpt_flags &= (~f);
1639 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1640}
1641
Chao Yuaaec2b12016-09-20 11:04:18 +08001642static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1643{
Chao Yud1aa2452017-07-07 14:10:15 +08001644 unsigned long flags;
1645
1646 spin_lock_irqsave(&sbi->cp_lock, flags);
Chao Yuaaec2b12016-09-20 11:04:18 +08001647 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
Chao Yud1aa2452017-07-07 14:10:15 +08001648 spin_unlock_irqrestore(&sbi->cp_lock, flags);
Chao Yuaaec2b12016-09-20 11:04:18 +08001649}
1650
Jaegeuk Kim22ad0b62017-02-09 10:38:09 -08001651static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1652{
Chao Yud1aa2452017-07-07 14:10:15 +08001653 unsigned long flags;
Chao Yu09218352019-07-26 15:43:17 +08001654 unsigned char *nat_bits;
Chao Yud1aa2452017-07-07 14:10:15 +08001655
Jaegeuk Kima742fd42018-11-27 23:28:37 -08001656 /*
1657 * In order to re-enable nat_bits we need to call fsck.f2fs by
1658 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
1659 * so let's rely on regular fsck or unclean shutdown.
1660 */
Jaegeuk Kim22ad0b62017-02-09 10:38:09 -08001661
1662 if (lock)
Chao Yud1aa2452017-07-07 14:10:15 +08001663 spin_lock_irqsave(&sbi->cp_lock, flags);
Jaegeuk Kim22ad0b62017-02-09 10:38:09 -08001664 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
Chao Yu09218352019-07-26 15:43:17 +08001665 nat_bits = NM_I(sbi)->nat_bits;
Jaegeuk Kim22ad0b62017-02-09 10:38:09 -08001666 NM_I(sbi)->nat_bits = NULL;
1667 if (lock)
Chao Yud1aa2452017-07-07 14:10:15 +08001668 spin_unlock_irqrestore(&sbi->cp_lock, flags);
Chao Yu09218352019-07-26 15:43:17 +08001669
1670 kvfree(nat_bits);
Jaegeuk Kim22ad0b62017-02-09 10:38:09 -08001671}
1672
1673static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1674 struct cp_control *cpc)
1675{
1676 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1677
Chao Yuc473f1a2017-04-27 20:40:39 +08001678 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
Jaegeuk Kim22ad0b62017-02-09 10:38:09 -08001679}
1680
Gu Zhenge4795562013-09-27 18:08:30 +08001681static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001682{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001683 down_read(&sbi->cp_rwsem);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001684}
1685
Jaegeuk Kimcc156202017-05-12 13:51:34 -07001686static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1687{
1688 return down_read_trylock(&sbi->cp_rwsem);
1689}
1690
Gu Zhenge4795562013-09-27 18:08:30 +08001691static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001692{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001693 up_read(&sbi->cp_rwsem);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001694}
1695
Gu Zhenge4795562013-09-27 18:08:30 +08001696static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
Jaegeuk Kim39936832012-11-22 16:21:29 +09001697{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001698 down_write(&sbi->cp_rwsem);
Jaegeuk Kim39936832012-11-22 16:21:29 +09001699}
1700
Gu Zhenge4795562013-09-27 18:08:30 +08001701static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
Jaegeuk Kim39936832012-11-22 16:21:29 +09001702{
Jaegeuk Kimb873b792016-08-04 11:38:25 -07001703 up_write(&sbi->cp_rwsem);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001704}
1705
Jaegeuk Kim119ee912015-01-29 11:45:33 -08001706static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1707{
1708 int reason = CP_SYNC;
1709
1710 if (test_opt(sbi, FASTBOOT))
1711 reason = CP_FASTBOOT;
1712 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1713 reason = CP_UMOUNT;
1714 return reason;
1715}
1716
1717static inline bool __remain_node_summaries(int reason)
1718{
Chao Yuc473f1a2017-04-27 20:40:39 +08001719 return (reason & (CP_UMOUNT | CP_FASTBOOT));
Jaegeuk Kim119ee912015-01-29 11:45:33 -08001720}
1721
1722static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1723{
Chao Yuaaec2b12016-09-20 11:04:18 +08001724 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1725 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
Jaegeuk Kim119ee912015-01-29 11:45:33 -08001726}
1727
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001728/*
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001729 * Check whether the inode has blocks or not
1730 */
1731static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1732{
Chao Yu0eb0ada2017-06-14 23:00:56 +08001733 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1734
Chao Yu000519f2017-07-06 01:11:31 +08001735 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001736}
1737
Chao Yu4bc8e9b2014-03-17 16:35:06 +08001738static inline bool f2fs_has_xattr_block(unsigned int ofs)
1739{
1740 return ofs == XATTR_NODE_OFFSET;
1741}
1742
Jaegeuk Kimd8a9a222018-01-05 16:02:36 -08001743static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
Jaegeuk Kima90a08842018-04-20 23:44:59 -07001744 struct inode *inode, bool cap)
Jaegeuk Kim7c2e5962018-01-04 21:36:09 -08001745{
Jaegeuk Kimd8a9a222018-01-05 16:02:36 -08001746 if (!inode)
1747 return true;
Jaegeuk Kim7c2e5962018-01-04 21:36:09 -08001748 if (!test_opt(sbi, RESERVE_ROOT))
1749 return false;
Jaegeuk Kimd8a9a222018-01-05 16:02:36 -08001750 if (IS_NOQUOTA(inode))
1751 return true;
Chao Yu63189b72018-03-08 14:22:56 +08001752 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
Jaegeuk Kim7c2e5962018-01-04 21:36:09 -08001753 return true;
Chao Yu63189b72018-03-08 14:22:56 +08001754 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1755 in_group_p(F2FS_OPTION(sbi).s_resgid))
Jaegeuk Kim7c2e5962018-01-04 21:36:09 -08001756 return true;
Jaegeuk Kima90a08842018-04-20 23:44:59 -07001757 if (cap && capable(CAP_SYS_RESOURCE))
Jaegeuk Kim162b27a2018-03-08 20:47:33 -08001758 return true;
Jaegeuk Kim7c2e5962018-01-04 21:36:09 -08001759 return false;
1760}
1761
Chao Yu0abd6752017-07-09 00:13:07 +08001762static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1763static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
Chao Yu46008c62016-05-09 19:56:30 +08001764 struct inode *inode, blkcnt_t *count)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001765{
Chao Yu0abd6752017-07-09 00:13:07 +08001766 blkcnt_t diff = 0, release = 0;
Chao Yudaeb4332017-06-26 16:24:41 +08001767 block_t avail_user_block_count;
Chao Yu0abd6752017-07-09 00:13:07 +08001768 int ret;
1769
1770 ret = dquot_reserve_block(inode, *count);
1771 if (ret)
1772 return ret;
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001773
Chao Yu55523512017-02-25 11:08:28 +08001774 if (time_to_inject(sbi, FAULT_BLOCK)) {
1775 f2fs_show_injection_info(FAULT_BLOCK);
Chao Yu0abd6752017-07-09 00:13:07 +08001776 release = *count;
Chao Yu9ea2f0b2019-08-23 17:58:34 +08001777 goto release_quota;
Chao Yu55523512017-02-25 11:08:28 +08001778 }
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02001779
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001780 /*
1781 * let's increase this in prior to actual block count change in order
1782 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1783 */
1784 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001785
1786 spin_lock(&sbi->stat_lock);
Jaegeuk Kim2555a2d2016-06-30 19:02:06 -07001787 sbi->total_valid_block_count += (block_t)(*count);
Yunlong Song80d42142017-10-27 20:45:05 +08001788 avail_user_block_count = sbi->user_block_count -
1789 sbi->current_reserved_blocks;
Jaegeuk Kim7e65be42017-12-27 15:05:52 -08001790
Jaegeuk Kima90a08842018-04-20 23:44:59 -07001791 if (!__allow_reserved_blocks(sbi, inode, true))
Chao Yu63189b72018-03-08 14:22:56 +08001792 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
Daniel Rosenberga4c3eca2019-05-29 17:49:05 -07001793 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1794 if (avail_user_block_count > sbi->unusable_block_count)
1795 avail_user_block_count -= sbi->unusable_block_count;
1796 else
1797 avail_user_block_count = 0;
1798 }
Chao Yudaeb4332017-06-26 16:24:41 +08001799 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1800 diff = sbi->total_valid_block_count - avail_user_block_count;
Jaegeuk Kim7e65be42017-12-27 15:05:52 -08001801 if (diff > *count)
1802 diff = *count;
Jaegeuk Kimdd11a5d2016-07-19 19:20:11 -07001803 *count -= diff;
Chao Yu0abd6752017-07-09 00:13:07 +08001804 release = diff;
Jaegeuk Kim7e65be42017-12-27 15:05:52 -08001805 sbi->total_valid_block_count -= diff;
Chao Yu46008c62016-05-09 19:56:30 +08001806 if (!*count) {
1807 spin_unlock(&sbi->stat_lock);
Chao Yu0abd6752017-07-09 00:13:07 +08001808 goto enospc;
Chao Yu46008c62016-05-09 19:56:30 +08001809 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001810 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001811 spin_unlock(&sbi->stat_lock);
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07001812
Daniel Rosenberg36b877a2018-07-09 20:32:42 -07001813 if (unlikely(release)) {
1814 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
Chao Yu0abd6752017-07-09 00:13:07 +08001815 dquot_release_reservation_block(inode, release);
Daniel Rosenberg36b877a2018-07-09 20:32:42 -07001816 }
Chao Yu0abd6752017-07-09 00:13:07 +08001817 f2fs_i_blocks_write(inode, *count, true, true);
1818 return 0;
1819
1820enospc:
Daniel Rosenberg36b877a2018-07-09 20:32:42 -07001821 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
Chao Yu9ea2f0b2019-08-23 17:58:34 +08001822release_quota:
Chao Yu0abd6752017-07-09 00:13:07 +08001823 dquot_release_reservation_block(inode, release);
1824 return -ENOSPC;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001825}
1826
Joe Perchesdcbb4c12019-06-18 17:48:42 +08001827__printf(2, 3)
1828void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
1829
1830#define f2fs_err(sbi, fmt, ...) \
1831 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
1832#define f2fs_warn(sbi, fmt, ...) \
1833 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
1834#define f2fs_notice(sbi, fmt, ...) \
1835 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
1836#define f2fs_info(sbi, fmt, ...) \
1837 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
1838#define f2fs_debug(sbi, fmt, ...) \
1839 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
1840
Gu Zhengda19b0d2013-11-19 18:03:27 +08001841static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001842 struct inode *inode,
Chao Yu0eb0ada2017-06-14 23:00:56 +08001843 block_t count)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001844{
Chao Yu0eb0ada2017-06-14 23:00:56 +08001845 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1846
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001847 spin_lock(&sbi->stat_lock);
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07001848 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001849 sbi->total_valid_block_count -= (block_t)count;
Yunlong Song80d42142017-10-27 20:45:05 +08001850 if (sbi->reserved_blocks &&
1851 sbi->current_reserved_blocks < sbi->reserved_blocks)
1852 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1853 sbi->current_reserved_blocks + count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001854 spin_unlock(&sbi->stat_lock);
Chao Yu5e159cd2019-04-15 15:28:30 +08001855 if (unlikely(inode->i_blocks < sectors)) {
Joe Perchesdcbb4c12019-06-18 17:48:42 +08001856 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
1857 inode->i_ino,
1858 (unsigned long long)inode->i_blocks,
1859 (unsigned long long)sectors);
Chao Yu5e159cd2019-04-15 15:28:30 +08001860 set_sbi_flag(sbi, SBI_NEED_FSCK);
1861 return;
1862 }
Chao Yu0abd6752017-07-09 00:13:07 +08001863 f2fs_i_blocks_write(inode, count, false, true);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001864}
1865
1866static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1867{
Jaegeuk Kim35782b22016-10-20 19:09:57 -07001868 atomic_inc(&sbi->nr_pages[count_type]);
Chao Yu7c4abcb2016-08-18 17:46:14 +08001869
Chao Yu20109872019-01-10 16:40:12 +08001870 if (count_type == F2FS_DIRTY_DENTS ||
1871 count_type == F2FS_DIRTY_NODES ||
1872 count_type == F2FS_DIRTY_META ||
1873 count_type == F2FS_DIRTY_QDATA ||
1874 count_type == F2FS_DIRTY_IMETA)
1875 set_sbi_flag(sbi, SBI_IS_DIRTY);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001876}
1877
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07001878static inline void inode_inc_dirty_pages(struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001879{
Jaegeuk Kim204706c2016-12-02 15:11:32 -08001880 atomic_inc(&F2FS_I(inode)->dirty_pages);
Chao Yuc227f912015-12-16 13:09:20 +08001881 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1882 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
Jaegeuk Kim2c8a4a22017-11-13 17:46:38 -08001883 if (IS_NOQUOTA(inode))
1884 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001885}
1886
1887static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1888{
Jaegeuk Kim35782b22016-10-20 19:09:57 -07001889 atomic_dec(&sbi->nr_pages[count_type]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001890}
1891
Jaegeuk Kima7ffdbe2014-09-12 15:53:45 -07001892static inline void inode_dec_dirty_pages(struct inode *inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001893{
Chao Yu5ac9f362015-06-29 18:14:10 +08001894 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1895 !S_ISLNK(inode->i_mode))
Jaegeuk Kim1fe54f92014-02-07 10:00:06 +09001896 return;
1897
Jaegeuk Kim204706c2016-12-02 15:11:32 -08001898 atomic_dec(&F2FS_I(inode)->dirty_pages);
Chao Yuc227f912015-12-16 13:09:20 +08001899 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1900 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
Jaegeuk Kim2c8a4a22017-11-13 17:46:38 -08001901 if (IS_NOQUOTA(inode))
1902 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001903}
1904
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001905static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001906{
Jaegeuk Kim35782b22016-10-20 19:09:57 -07001907 return atomic_read(&sbi->nr_pages[count_type]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001908}
1909
Jaegeuk Kim204706c2016-12-02 15:11:32 -08001910static inline int get_dirty_pages(struct inode *inode)
Jaegeuk Kimf8b2c1f2014-03-18 12:33:06 +09001911{
Jaegeuk Kim204706c2016-12-02 15:11:32 -08001912 return atomic_read(&F2FS_I(inode)->dirty_pages);
Jaegeuk Kimf8b2c1f2014-03-18 12:33:06 +09001913}
1914
Namjae Jeon5ac206c2013-02-02 23:52:59 +09001915static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1916{
Chao Yu3519e3f2015-12-01 11:56:52 +08001917 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
Jaegeuk Kim523be8a2016-05-13 12:36:58 -07001918 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1919 sbi->log_blocks_per_seg;
1920
1921 return segs / sbi->segs_per_sec;
Namjae Jeon5ac206c2013-02-02 23:52:59 +09001922}
1923
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001924static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1925{
Jaegeuk Kim8b8343f2014-02-24 13:00:13 +09001926 return sbi->total_valid_block_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001927}
1928
Yunlei Hef83a2582016-08-18 21:01:18 +08001929static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1930{
1931 return sbi->discard_blks;
1932}
1933
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001934static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1935{
1936 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1937
1938 /* return NAT or SIT bitmap */
1939 if (flag == NAT_BITMAP)
1940 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1941 else if (flag == SIT_BITMAP)
1942 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1943
1944 return 0;
1945}
1946
Wanpeng Li55141482015-02-26 07:57:20 +08001947static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1948{
1949 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1950}
1951
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001952static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1953{
1954 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
Changman Lee1dbe4152014-05-12 12:27:43 +09001955 int offset;
1956
Chao Yu199bc3f2018-01-25 19:40:08 +08001957 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
1958 offset = (flag == SIT_BITMAP) ?
1959 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
Chao Yub471eb92019-04-22 17:33:53 +08001960 /*
1961 * if large_nat_bitmap feature is enabled, leave checksum
1962 * protection for all nat/sit bitmaps.
1963 */
1964 return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32);
Chao Yu199bc3f2018-01-25 19:40:08 +08001965 }
1966
Wanpeng Li55141482015-02-26 07:57:20 +08001967 if (__cp_payload(sbi) > 0) {
Changman Lee1dbe4152014-05-12 12:27:43 +09001968 if (flag == NAT_BITMAP)
1969 return &ckpt->sit_nat_version_bitmap;
1970 else
Jaegeuk Kim65b85cc2014-07-30 17:25:54 -07001971 return (unsigned char *)ckpt + F2FS_BLKSIZE;
Changman Lee1dbe4152014-05-12 12:27:43 +09001972 } else {
1973 offset = (flag == NAT_BITMAP) ?
Jaegeuk Kim25ca9232012-11-28 16:12:41 +09001974 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
Changman Lee1dbe4152014-05-12 12:27:43 +09001975 return &ckpt->sit_nat_version_bitmap + offset;
1976 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001977}
1978
1979static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1980{
Jaegeuk Kim8508e442016-11-24 12:45:15 -08001981 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001982
Jaegeuk Kim8508e442016-11-24 12:45:15 -08001983 if (sbi->cur_cp_pack == 2)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001984 start_addr += sbi->blocks_per_seg;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09001985 return start_addr;
1986}
1987
Jaegeuk Kim8508e442016-11-24 12:45:15 -08001988static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1989{
1990 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1991
1992 if (sbi->cur_cp_pack == 1)
1993 start_addr += sbi->blocks_per_seg;
1994 return start_addr;
1995}
1996
1997static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1998{
1999 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2000}
2001
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002002static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2003{
2004 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2005}
2006
Chao Yu0abd6752017-07-09 00:13:07 +08002007static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
Chao Yu000519f2017-07-06 01:11:31 +08002008 struct inode *inode, bool is_inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002009{
2010 block_t valid_block_count;
Daniel Rosenberga4c3eca2019-05-29 17:49:05 -07002011 unsigned int valid_node_count, user_block_count;
Chao Yuaf033b22018-09-20 20:05:00 +08002012 int err;
Chao Yu0abd6752017-07-09 00:13:07 +08002013
Chao Yuaf033b22018-09-20 20:05:00 +08002014 if (is_inode) {
2015 if (inode) {
2016 err = dquot_alloc_inode(inode);
2017 if (err)
2018 return err;
2019 }
2020 } else {
2021 err = dquot_reserve_block(inode, 1);
2022 if (err)
2023 return err;
Chao Yu0abd6752017-07-09 00:13:07 +08002024 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002025
Chao Yu812c6052017-11-13 17:32:40 +08002026 if (time_to_inject(sbi, FAULT_BLOCK)) {
2027 f2fs_show_injection_info(FAULT_BLOCK);
2028 goto enospc;
2029 }
Chao Yu812c6052017-11-13 17:32:40 +08002030
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002031 spin_lock(&sbi->stat_lock);
2032
Jaegeuk Kim7e65be42017-12-27 15:05:52 -08002033 valid_block_count = sbi->total_valid_block_count +
2034 sbi->current_reserved_blocks + 1;
2035
Jaegeuk Kima90a08842018-04-20 23:44:59 -07002036 if (!__allow_reserved_blocks(sbi, inode, false))
Chao Yu63189b72018-03-08 14:22:56 +08002037 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
Daniel Rosenberga4c3eca2019-05-29 17:49:05 -07002038 user_block_count = sbi->user_block_count;
Daniel Rosenberg43549942018-08-20 19:21:43 -07002039 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
Daniel Rosenberga4c3eca2019-05-29 17:49:05 -07002040 user_block_count -= sbi->unusable_block_count;
Jaegeuk Kim7e65be42017-12-27 15:05:52 -08002041
Daniel Rosenberga4c3eca2019-05-29 17:49:05 -07002042 if (unlikely(valid_block_count > user_block_count)) {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002043 spin_unlock(&sbi->stat_lock);
Chao Yu0abd6752017-07-09 00:13:07 +08002044 goto enospc;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002045 }
2046
Gu Zhengef86d702013-11-19 18:03:38 +08002047 valid_node_count = sbi->total_valid_node_count + 1;
Chao Yucfb271d2013-12-05 17:15:22 +08002048 if (unlikely(valid_node_count > sbi->total_node_count)) {
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002049 spin_unlock(&sbi->stat_lock);
Chao Yu0abd6752017-07-09 00:13:07 +08002050 goto enospc;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002051 }
2052
Gu Zhengef86d702013-11-19 18:03:38 +08002053 sbi->total_valid_node_count++;
2054 sbi->total_valid_block_count++;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002055 spin_unlock(&sbi->stat_lock);
2056
Chao Yu0abd6752017-07-09 00:13:07 +08002057 if (inode) {
2058 if (is_inode)
2059 f2fs_mark_inode_dirty_sync(inode, true);
2060 else
2061 f2fs_i_blocks_write(inode, 1, true, true);
2062 }
2063
Jaegeuk Kim41382ec2016-05-16 11:06:50 -07002064 percpu_counter_inc(&sbi->alloc_valid_block_count);
Chao Yu0abd6752017-07-09 00:13:07 +08002065 return 0;
2066
2067enospc:
Chao Yuaf033b22018-09-20 20:05:00 +08002068 if (is_inode) {
2069 if (inode)
2070 dquot_free_inode(inode);
2071 } else {
Chao Yu0abd6752017-07-09 00:13:07 +08002072 dquot_release_reservation_block(inode, 1);
Chao Yuaf033b22018-09-20 20:05:00 +08002073 }
Chao Yu0abd6752017-07-09 00:13:07 +08002074 return -ENOSPC;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002075}
2076
2077static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
Chao Yu000519f2017-07-06 01:11:31 +08002078 struct inode *inode, bool is_inode)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002079{
2080 spin_lock(&sbi->stat_lock);
2081
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07002082 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2083 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002084
Gu Zhengef86d702013-11-19 18:03:38 +08002085 sbi->total_valid_node_count--;
2086 sbi->total_valid_block_count--;
Yunlong Song80d42142017-10-27 20:45:05 +08002087 if (sbi->reserved_blocks &&
2088 sbi->current_reserved_blocks < sbi->reserved_blocks)
2089 sbi->current_reserved_blocks++;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002090
2091 spin_unlock(&sbi->stat_lock);
Chao Yu0abd6752017-07-09 00:13:07 +08002092
Chao Yuea6d7e72019-04-15 15:28:31 +08002093 if (is_inode) {
Chao Yuaf033b22018-09-20 20:05:00 +08002094 dquot_free_inode(inode);
Chao Yuea6d7e72019-04-15 15:28:31 +08002095 } else {
2096 if (unlikely(inode->i_blocks == 0)) {
Joe Perchesdcbb4c12019-06-18 17:48:42 +08002097 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu",
2098 inode->i_ino,
2099 (unsigned long long)inode->i_blocks);
Chao Yuea6d7e72019-04-15 15:28:31 +08002100 set_sbi_flag(sbi, SBI_NEED_FSCK);
2101 return;
2102 }
Chao Yu0abd6752017-07-09 00:13:07 +08002103 f2fs_i_blocks_write(inode, 1, false, true);
Chao Yuea6d7e72019-04-15 15:28:31 +08002104 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002105}
2106
2107static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2108{
Jaegeuk Kim8b8343f2014-02-24 13:00:13 +09002109 return sbi->total_valid_node_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002110}
2111
2112static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2113{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07002114 percpu_counter_inc(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002115}
2116
Jaegeuk Kim0e802202013-11-26 16:36:20 +09002117static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002118{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07002119 percpu_counter_dec(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002120}
2121
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07002122static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002123{
Jaegeuk Kim513c5f32016-05-16 11:42:32 -07002124 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002125}
2126
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07002127static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2128 pgoff_t index, bool for_write)
2129{
Chao Yu82cf4f12018-07-27 18:15:14 +08002130 struct page *page;
DongOh Shincac5a3d2017-01-30 10:55:18 -08002131
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02002132 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2133 if (!for_write)
2134 page = find_get_page_flags(mapping, index,
2135 FGP_LOCK | FGP_ACCESSED);
2136 else
2137 page = find_lock_page(mapping, index);
2138 if (page)
2139 return page;
Jaegeuk Kimc41f3cc32016-04-29 16:17:09 -07002140
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02002141 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2142 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
2143 return NULL;
2144 }
Chao Yu55523512017-02-25 11:08:28 +08002145 }
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02002146
Jaegeuk Kima56c7c62015-10-09 15:11:38 -07002147 if (!for_write)
2148 return grab_cache_page(mapping, index);
2149 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2150}
2151
Chao Yu01eccef2017-10-28 16:52:30 +08002152static inline struct page *f2fs_pagecache_get_page(
2153 struct address_space *mapping, pgoff_t index,
2154 int fgp_flags, gfp_t gfp_mask)
2155{
Chao Yu01eccef2017-10-28 16:52:30 +08002156 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2157 f2fs_show_injection_info(FAULT_PAGE_GET);
2158 return NULL;
2159 }
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02002160
Chao Yu01eccef2017-10-28 16:52:30 +08002161 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2162}
2163
Jaegeuk Kim6e2c64a2015-10-07 12:28:41 -07002164static inline void f2fs_copy_page(struct page *src, struct page *dst)
2165{
2166 char *src_kaddr = kmap(src);
2167 char *dst_kaddr = kmap(dst);
2168
2169 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2170 kunmap(dst);
2171 kunmap(src);
2172}
2173
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002174static inline void f2fs_put_page(struct page *page, int unlock)
2175{
Jaegeuk Kim031fa8c2013-11-28 12:55:13 +09002176 if (!page)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002177 return;
2178
2179 if (unlock) {
Jaegeuk Kim9850cf42014-09-02 15:52:58 -07002180 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002181 unlock_page(page);
2182 }
Kirill A. Shutemov09cbfea2016-04-01 15:29:47 +03002183 put_page(page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002184}
2185
2186static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2187{
2188 if (dn->node_page)
2189 f2fs_put_page(dn->node_page, 1);
2190 if (dn->inode_page && dn->node_page != dn->inode_page)
2191 f2fs_put_page(dn->inode_page, 0);
2192 dn->node_page = NULL;
2193 dn->inode_page = NULL;
2194}
2195
2196static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
Gu Zhenge8512d22014-03-07 18:43:28 +08002197 size_t size)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002198{
Gu Zhenge8512d22014-03-07 18:43:28 +08002199 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002200}
2201
Gu Zheng7bd59382013-10-22 14:52:26 +08002202static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2203 gfp_t flags)
2204{
2205 void *entry;
Gu Zheng7bd59382013-10-22 14:52:26 +08002206
Jaegeuk Kim80c54502015-08-20 08:51:56 -07002207 entry = kmem_cache_alloc(cachep, flags);
2208 if (!entry)
2209 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
Gu Zheng7bd59382013-10-22 14:52:26 +08002210 return entry;
2211}
2212
Chao Yud62fe972017-10-28 16:52:31 +08002213static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
2214 int npages, bool no_fail)
Jaegeuk Kim740432f2015-08-14 11:43:56 -07002215{
2216 struct bio *bio;
2217
Chao Yud62fe972017-10-28 16:52:31 +08002218 if (no_fail) {
2219 /* No failure on bio allocation */
2220 bio = bio_alloc(GFP_NOIO, npages);
2221 if (!bio)
2222 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
2223 return bio;
2224 }
Chao Yud62fe972017-10-28 16:52:31 +08002225 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
2226 f2fs_show_injection_info(FAULT_ALLOC_BIO);
2227 return NULL;
2228 }
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02002229
Chao Yud62fe972017-10-28 16:52:31 +08002230 return bio_alloc(GFP_KERNEL, npages);
Jaegeuk Kim740432f2015-08-14 11:43:56 -07002231}
2232
Jaegeuk Kim5f9abab2018-10-16 10:20:53 -07002233static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2234{
Park Ju Hyungf7dfd9f2019-05-14 15:36:23 +09002235 if (sbi->gc_mode == GC_URGENT)
2236 return true;
2237
Jaegeuk Kim5f9abab2018-10-16 10:20:53 -07002238 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2239 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
Chao Yufef41292018-11-12 00:55:44 +08002240 get_pages(sbi, F2FS_WB_CP_DATA) ||
2241 get_pages(sbi, F2FS_DIO_READ) ||
Jaegeuk Kim11ac8ef2019-01-25 12:05:25 -08002242 get_pages(sbi, F2FS_DIO_WRITE))
Jaegeuk Kim5f9abab2018-10-16 10:20:53 -07002243 return false;
Jaegeuk Kim11ac8ef2019-01-25 12:05:25 -08002244
Sahitya Tummala56659ce2019-06-06 15:08:13 +05302245 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
Jaegeuk Kim11ac8ef2019-01-25 12:05:25 -08002246 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2247 return false;
2248
2249 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2250 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2251 return false;
2252
Jaegeuk Kim5f9abab2018-10-16 10:20:53 -07002253 return f2fs_time_over(sbi, type);
2254}
2255
Jaegeuk Kim9be32d72014-12-05 10:39:49 -08002256static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2257 unsigned long index, void *item)
2258{
2259 while (radix_tree_insert(root, index, item))
2260 cond_resched();
2261}
2262
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002263#define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2264
2265static inline bool IS_INODE(struct page *page)
2266{
Gu Zheng45590712013-07-15 17:57:38 +08002267 struct f2fs_node *p = F2FS_NODE(page);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002268
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002269 return RAW_IS_INODE(p);
2270}
2271
Chao Yu7a2af762017-07-19 00:19:06 +08002272static inline int offset_in_addr(struct f2fs_inode *i)
2273{
2274 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2275 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2276}
2277
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002278static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2279{
2280 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2281}
2282
Chao Yu7a2af762017-07-19 00:19:06 +08002283static inline int f2fs_has_extra_attr(struct inode *inode);
2284static inline block_t datablock_addr(struct inode *inode,
2285 struct page *node_page, unsigned int offset)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002286{
2287 struct f2fs_node *raw_node;
2288 __le32 *addr_array;
Chao Yu7a2af762017-07-19 00:19:06 +08002289 int base = 0;
2290 bool is_inode = IS_INODE(node_page);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002291
Gu Zheng45590712013-07-15 17:57:38 +08002292 raw_node = F2FS_NODE(node_page);
Chao Yu7a2af762017-07-19 00:19:06 +08002293
2294 /* from GC path only */
LiFan979f4922017-11-28 20:17:41 +08002295 if (is_inode) {
2296 if (!inode)
Chao Yu7a2af762017-07-19 00:19:06 +08002297 base = offset_in_addr(&raw_node->i);
LiFan979f4922017-11-28 20:17:41 +08002298 else if (f2fs_has_extra_attr(inode))
2299 base = get_extra_isize(inode);
Chao Yu7a2af762017-07-19 00:19:06 +08002300 }
2301
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002302 addr_array = blkaddr_in_node(raw_node);
Chao Yu7a2af762017-07-19 00:19:06 +08002303 return le32_to_cpu(addr_array[base + offset]);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002304}
2305
2306static inline int f2fs_test_bit(unsigned int nr, char *addr)
2307{
2308 int mask;
2309
2310 addr += (nr >> 3);
2311 mask = 1 << (7 - (nr & 0x07));
2312 return mask & *addr;
2313}
2314
Jaegeuk Kima66cdd92015-04-30 22:37:50 -07002315static inline void f2fs_set_bit(unsigned int nr, char *addr)
2316{
2317 int mask;
2318
2319 addr += (nr >> 3);
2320 mask = 1 << (7 - (nr & 0x07));
2321 *addr |= mask;
2322}
2323
2324static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2325{
2326 int mask;
2327
2328 addr += (nr >> 3);
2329 mask = 1 << (7 - (nr & 0x07));
2330 *addr &= ~mask;
2331}
2332
Gu Zheng52aca072014-10-20 17:45:51 +08002333static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002334{
2335 int mask;
2336 int ret;
2337
2338 addr += (nr >> 3);
2339 mask = 1 << (7 - (nr & 0x07));
2340 ret = mask & *addr;
2341 *addr |= mask;
2342 return ret;
2343}
2344
Gu Zheng52aca072014-10-20 17:45:51 +08002345static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002346{
2347 int mask;
2348 int ret;
2349
2350 addr += (nr >> 3);
2351 mask = 1 << (7 - (nr & 0x07));
2352 ret = mask & *addr;
2353 *addr &= ~mask;
2354 return ret;
2355}
2356
Gu Zhengc6ac4c02014-10-20 17:45:50 +08002357static inline void f2fs_change_bit(unsigned int nr, char *addr)
2358{
2359 int mask;
2360
2361 addr += (nr >> 3);
2362 mask = 1 << (7 - (nr & 0x07));
2363 *addr ^= mask;
2364}
2365
Chao Yu59c84402018-04-03 15:08:17 +08002366/*
Eric Biggers36098552019-06-04 22:59:04 -07002367 * On-disk inode flags (f2fs_inode::i_flags)
Chao Yu59c84402018-04-03 15:08:17 +08002368 */
Chao Yu59c84402018-04-03 15:08:17 +08002369#define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2370#define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2371#define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2372#define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2373#define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
Chao Yu59c84402018-04-03 15:08:17 +08002374#define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
Chao Yu59c84402018-04-03 15:08:17 +08002375#define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
Chao Yu59c84402018-04-03 15:08:17 +08002376#define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
Daniel Rosenberg2c2eb7a2019-07-23 16:05:29 -07002377#define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
Chao Yu59c84402018-04-03 15:08:17 +08002378
2379/* Flags that should be inherited by new inodes from their parent. */
Eric Biggers36098552019-06-04 22:59:04 -07002380#define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
Daniel Rosenberg2c2eb7a2019-07-23 16:05:29 -07002381 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2382 F2FS_CASEFOLD_FL)
Chao Yu59c84402018-04-03 15:08:17 +08002383
2384/* Flags that are appropriate for regular files (all but dir-specific ones). */
Daniel Rosenberg2c2eb7a2019-07-23 16:05:29 -07002385#define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2386 F2FS_CASEFOLD_FL))
Chao Yu59c84402018-04-03 15:08:17 +08002387
2388/* Flags that are appropriate for non-directories/regular files. */
2389#define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
Chao Yu5c571322017-07-26 00:01:41 +08002390
2391static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2392{
2393 if (S_ISDIR(mode))
2394 return flags;
2395 else if (S_ISREG(mode))
2396 return flags & F2FS_REG_FLMASK;
2397 else
2398 return flags & F2FS_OTHER_FLMASK;
2399}
2400
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002401/* used for f2fs_inode_info->flags */
2402enum {
2403 FI_NEW_INODE, /* indicate newly allocated inode */
Jaegeuk Kimb3783872013-06-10 09:17:01 +09002404 FI_DIRTY_INODE, /* indicate inode is dirty or not */
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07002405 FI_AUTO_RECOVER, /* indicate inode is recoverable */
Jaegeuk Kimed57c272014-04-15 11:19:28 +09002406 FI_DIRTY_DIR, /* indicate directory has dirty pages */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002407 FI_INC_LINK, /* need to increment i_nlink */
2408 FI_ACL_MODE, /* indicate acl mode */
2409 FI_NO_ALLOC, /* should not allocate any blocks */
Jaegeuk Kimc9b63bd2015-06-23 10:36:08 -07002410 FI_FREE_NID, /* free allocated nide */
Jaegeuk Kimc11abd12013-11-19 10:41:54 +09002411 FI_NO_EXTENT, /* not to use the extent cache */
Jaegeuk Kim444c5802013-08-08 15:16:22 +09002412 FI_INLINE_XATTR, /* used for inline xattr */
Huajun Li1001b342013-11-10 23:13:16 +08002413 FI_INLINE_DATA, /* used for inline data*/
Chao Yu34d67de2014-09-24 18:15:19 +08002414 FI_INLINE_DENTRY, /* used for inline dentry */
Jaegeuk Kimfff04f92014-07-25 07:40:59 -07002415 FI_APPEND_WRITE, /* inode has appended data */
2416 FI_UPDATE_WRITE, /* inode has in-place-update data */
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07002417 FI_NEED_IPU, /* used for ipu per file */
2418 FI_ATOMIC_FILE, /* indicate atomic file */
Chao Yu5fe45742017-01-07 18:50:26 +08002419 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
Jaegeuk Kim02a13352014-10-06 16:11:16 -07002420 FI_VOLATILE_FILE, /* indicate volatile file */
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07002421 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
Jaegeuk Kim1e843712014-12-09 06:08:59 -08002422 FI_DROP_CACHE, /* drop dirty page cache */
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002423 FI_DATA_EXIST, /* indicate data exists */
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002424 FI_INLINE_DOTS, /* indicate inline dot dentries */
Chao Yud323d002015-10-27 09:53:45 +08002425 FI_DO_DEFRAG, /* indicate defragment is running */
Chao Yuc227f912015-12-16 13:09:20 +08002426 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
Jaegeuk Kimdc91de72017-01-13 13:12:29 -08002427 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
Jaegeuk Kimef095d12017-03-24 20:05:13 -04002428 FI_HOT_DATA, /* indicate file is hot */
Chao Yu7a2af762017-07-19 00:19:06 +08002429 FI_EXTRA_ATTR, /* indicate file has extra attribute */
Chao Yu5c571322017-07-26 00:01:41 +08002430 FI_PROJ_INHERIT, /* indicate file inherits projectid */
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08002431 FI_PIN_FILE, /* indicate file should not be gced */
Chao Yu2ef79ec2018-05-07 20:28:54 +08002432 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
Eric Biggers95ae2512019-07-22 09:26:24 -07002433 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002434};
2435
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002436static inline void __mark_inode_dirty_flag(struct inode *inode,
2437 int flag, bool set)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002438{
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002439 switch (flag) {
2440 case FI_INLINE_XATTR:
2441 case FI_INLINE_DATA:
2442 case FI_INLINE_DENTRY:
Daeho Jeong9ac1e2d2018-01-11 11:26:19 +09002443 case FI_NEW_INODE:
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002444 if (set)
2445 return;
Jaegeuk Kimf5d55102018-11-26 14:20:32 -08002446 /* fall through */
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002447 case FI_DATA_EXIST:
2448 case FI_INLINE_DOTS:
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08002449 case FI_PIN_FILE:
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002450 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002451 }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002452}
2453
Jaegeuk Kim91942322016-05-20 10:13:22 -07002454static inline void set_inode_flag(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002455{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002456 if (!test_bit(flag, &F2FS_I(inode)->flags))
2457 set_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002458 __mark_inode_dirty_flag(inode, flag, true);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002459}
2460
Jaegeuk Kim91942322016-05-20 10:13:22 -07002461static inline int is_inode_flag_set(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002462{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002463 return test_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002464}
2465
Jaegeuk Kim91942322016-05-20 10:13:22 -07002466static inline void clear_inode_flag(struct inode *inode, int flag)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002467{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002468 if (test_bit(flag, &F2FS_I(inode)->flags))
2469 clear_bit(flag, &F2FS_I(inode)->flags);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002470 __mark_inode_dirty_flag(inode, flag, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002471}
2472
Eric Biggers95ae2512019-07-22 09:26:24 -07002473static inline bool f2fs_verity_in_progress(struct inode *inode)
2474{
2475 return IS_ENABLED(CONFIG_FS_VERITY) &&
2476 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2477}
2478
Jaegeuk Kim91942322016-05-20 10:13:22 -07002479static inline void set_acl_inode(struct inode *inode, umode_t mode)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09002480{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002481 F2FS_I(inode)->i_acl_mode = mode;
2482 set_inode_flag(inode, FI_ACL_MODE);
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002483 f2fs_mark_inode_dirty_sync(inode, false);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002484}
2485
Jaegeuk Kima1961242016-05-20 09:43:20 -07002486static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2487{
2488 if (inc)
2489 inc_nlink(inode);
2490 else
2491 drop_nlink(inode);
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002492 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kima1961242016-05-20 09:43:20 -07002493}
2494
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07002495static inline void f2fs_i_blocks_write(struct inode *inode,
Chao Yu0abd6752017-07-09 00:13:07 +08002496 block_t diff, bool add, bool claim)
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07002497{
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07002498 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2499 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2500
Chao Yu0abd6752017-07-09 00:13:07 +08002501 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2502 if (add) {
2503 if (claim)
2504 dquot_claim_block(inode, diff);
2505 else
2506 dquot_alloc_block_nofail(inode, diff);
2507 } else {
2508 dquot_free_block(inode, diff);
2509 }
2510
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002511 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07002512 if (clean || recover)
2513 set_inode_flag(inode, FI_AUTO_RECOVER);
Jaegeuk Kim8edd03c2016-05-20 09:26:06 -07002514}
2515
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07002516static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2517{
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07002518 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2519 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2520
Jaegeuk Kimfc9581c2016-05-20 09:22:03 -07002521 if (i_size_read(inode) == i_size)
2522 return;
2523
2524 i_size_write(inode, i_size);
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002525 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim26de9b12016-05-20 20:42:37 -07002526 if (clean || recover)
2527 set_inode_flag(inode, FI_AUTO_RECOVER);
2528}
2529
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002530static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2531{
2532 F2FS_I(inode)->i_current_depth = depth;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002533 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002534}
2535
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08002536static inline void f2fs_i_gc_failures_write(struct inode *inode,
2537 unsigned int count)
2538{
Chao Yu2ef79ec2018-05-07 20:28:54 +08002539 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08002540 f2fs_mark_inode_dirty_sync(inode, true);
2541}
2542
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002543static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2544{
2545 F2FS_I(inode)->i_xattr_nid = xnid;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002546 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002547}
2548
2549static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2550{
2551 F2FS_I(inode)->i_pino = pino;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002552 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002553}
2554
Jaegeuk Kim91942322016-05-20 10:13:22 -07002555static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09002556{
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002557 struct f2fs_inode_info *fi = F2FS_I(inode);
2558
Jaegeuk Kim444c5802013-08-08 15:16:22 +09002559 if (ri->i_inline & F2FS_INLINE_XATTR)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002560 set_bit(FI_INLINE_XATTR, &fi->flags);
Huajun Li1001b342013-11-10 23:13:16 +08002561 if (ri->i_inline & F2FS_INLINE_DATA)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002562 set_bit(FI_INLINE_DATA, &fi->flags);
Chao Yu34d67de2014-09-24 18:15:19 +08002563 if (ri->i_inline & F2FS_INLINE_DENTRY)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002564 set_bit(FI_INLINE_DENTRY, &fi->flags);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002565 if (ri->i_inline & F2FS_DATA_EXIST)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002566 set_bit(FI_DATA_EXIST, &fi->flags);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002567 if (ri->i_inline & F2FS_INLINE_DOTS)
Jaegeuk Kim205b9822016-05-20 09:52:20 -07002568 set_bit(FI_INLINE_DOTS, &fi->flags);
Chao Yu7a2af762017-07-19 00:19:06 +08002569 if (ri->i_inline & F2FS_EXTRA_ATTR)
2570 set_bit(FI_EXTRA_ATTR, &fi->flags);
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08002571 if (ri->i_inline & F2FS_PIN_FILE)
2572 set_bit(FI_PIN_FILE, &fi->flags);
Jaegeuk Kim444c5802013-08-08 15:16:22 +09002573}
2574
Jaegeuk Kim91942322016-05-20 10:13:22 -07002575static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
Jaegeuk Kim444c5802013-08-08 15:16:22 +09002576{
2577 ri->i_inline = 0;
2578
Jaegeuk Kim91942322016-05-20 10:13:22 -07002579 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
Jaegeuk Kim444c5802013-08-08 15:16:22 +09002580 ri->i_inline |= F2FS_INLINE_XATTR;
Jaegeuk Kim91942322016-05-20 10:13:22 -07002581 if (is_inode_flag_set(inode, FI_INLINE_DATA))
Huajun Li1001b342013-11-10 23:13:16 +08002582 ri->i_inline |= F2FS_INLINE_DATA;
Jaegeuk Kim91942322016-05-20 10:13:22 -07002583 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
Chao Yu34d67de2014-09-24 18:15:19 +08002584 ri->i_inline |= F2FS_INLINE_DENTRY;
Jaegeuk Kim91942322016-05-20 10:13:22 -07002585 if (is_inode_flag_set(inode, FI_DATA_EXIST))
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002586 ri->i_inline |= F2FS_DATA_EXIST;
Jaegeuk Kim91942322016-05-20 10:13:22 -07002587 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002588 ri->i_inline |= F2FS_INLINE_DOTS;
Chao Yu7a2af762017-07-19 00:19:06 +08002589 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2590 ri->i_inline |= F2FS_EXTRA_ATTR;
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08002591 if (is_inode_flag_set(inode, FI_PIN_FILE))
2592 ri->i_inline |= F2FS_PIN_FILE;
Chao Yu7a2af762017-07-19 00:19:06 +08002593}
2594
2595static inline int f2fs_has_extra_attr(struct inode *inode)
2596{
2597 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
Jaegeuk Kim444c5802013-08-08 15:16:22 +09002598}
2599
Chao Yu987c7c32014-03-12 15:59:03 +08002600static inline int f2fs_has_inline_xattr(struct inode *inode)
2601{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002602 return is_inode_flag_set(inode, FI_INLINE_XATTR);
Chao Yu987c7c32014-03-12 15:59:03 +08002603}
2604
Chao Yu81ca7352016-01-26 15:39:35 +08002605static inline unsigned int addrs_per_inode(struct inode *inode)
Jaegeuk Kimde936532013-08-12 21:08:03 +09002606{
Chao Yud02a6e62019-03-25 21:08:19 +08002607 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
2608 get_inline_xattr_addrs(inode);
2609 return ALIGN_DOWN(addrs, 1);
2610}
2611
2612static inline unsigned int addrs_per_block(struct inode *inode)
2613{
2614 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, 1);
Jaegeuk Kimde936532013-08-12 21:08:03 +09002615}
2616
Chao Yu6afc6622017-09-06 21:59:50 +08002617static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
Jaegeuk Kim65985d92013-08-14 21:57:27 +09002618{
Chao Yu695fd1e2014-02-27 19:52:21 +08002619 struct f2fs_inode *ri = F2FS_INODE(page);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002620
Jaegeuk Kim65985d92013-08-14 21:57:27 +09002621 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
Chao Yub323fd22018-01-17 16:31:36 +08002622 get_inline_xattr_addrs(inode)]);
Jaegeuk Kim65985d92013-08-14 21:57:27 +09002623}
2624
2625static inline int inline_xattr_size(struct inode *inode)
2626{
Chao Yu622927f2019-04-11 11:48:10 +08002627 if (f2fs_has_inline_xattr(inode))
2628 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2629 return 0;
Jaegeuk Kim65985d92013-08-14 21:57:27 +09002630}
2631
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002632static inline int f2fs_has_inline_data(struct inode *inode)
2633{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002634 return is_inode_flag_set(inode, FI_INLINE_DATA);
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09002635}
2636
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002637static inline int f2fs_exist_data(struct inode *inode)
2638{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002639 return is_inode_flag_set(inode, FI_DATA_EXIST);
Jaegeuk Kimb3d208f2014-10-23 19:48:09 -07002640}
2641
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002642static inline int f2fs_has_inline_dots(struct inode *inode)
2643{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002644 return is_inode_flag_set(inode, FI_INLINE_DOTS);
Jaegeuk Kim510022a2015-03-30 15:07:16 -07002645}
2646
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08002647static inline bool f2fs_is_pinned_file(struct inode *inode)
2648{
2649 return is_inode_flag_set(inode, FI_PIN_FILE);
2650}
2651
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07002652static inline bool f2fs_is_atomic_file(struct inode *inode)
2653{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002654 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
Jaegeuk Kim88b88a62014-10-06 17:39:50 -07002655}
2656
Chao Yu5fe45742017-01-07 18:50:26 +08002657static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2658{
2659 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2660}
2661
Jaegeuk Kim02a13352014-10-06 16:11:16 -07002662static inline bool f2fs_is_volatile_file(struct inode *inode)
2663{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002664 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
Jaegeuk Kim02a13352014-10-06 16:11:16 -07002665}
2666
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07002667static inline bool f2fs_is_first_block_written(struct inode *inode)
2668{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002669 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
Jaegeuk Kim3c6c2be2015-03-17 17:16:35 -07002670}
2671
Jaegeuk Kim1e843712014-12-09 06:08:59 -08002672static inline bool f2fs_is_drop_cache(struct inode *inode)
2673{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002674 return is_inode_flag_set(inode, FI_DROP_CACHE);
Jaegeuk Kim1e843712014-12-09 06:08:59 -08002675}
2676
Chao Yuf2470372017-07-19 00:19:05 +08002677static inline void *inline_data_addr(struct inode *inode, struct page *page)
Huajun Li1001b342013-11-10 23:13:16 +08002678{
Chao Yu695fd1e2014-02-27 19:52:21 +08002679 struct f2fs_inode *ri = F2FS_INODE(page);
Chao Yu7a2af762017-07-19 00:19:06 +08002680 int extra_size = get_extra_isize(inode);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002681
Chao Yu7a2af762017-07-19 00:19:06 +08002682 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
Huajun Li1001b342013-11-10 23:13:16 +08002683}
2684
Chao Yu34d67de2014-09-24 18:15:19 +08002685static inline int f2fs_has_inline_dentry(struct inode *inode)
2686{
Jaegeuk Kim91942322016-05-20 10:13:22 -07002687 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
Chao Yu34d67de2014-09-24 18:15:19 +08002688}
2689
Jaegeuk Kimb5492af2015-04-20 13:44:41 -07002690static inline int is_file(struct inode *inode, int type)
2691{
2692 return F2FS_I(inode)->i_advise & type;
2693}
2694
2695static inline void set_file(struct inode *inode, int type)
2696{
2697 F2FS_I(inode)->i_advise |= type;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002698 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kimb5492af2015-04-20 13:44:41 -07002699}
2700
2701static inline void clear_file(struct inode *inode, int type)
2702{
2703 F2FS_I(inode)->i_advise &= ~type;
Jaegeuk Kim7c457292016-10-14 11:51:23 -07002704 f2fs_mark_inode_dirty_sync(inode, true);
Jaegeuk Kimb5492af2015-04-20 13:44:41 -07002705}
2706
Chao Yufe1897e2019-09-27 18:01:35 +08002707static inline bool f2fs_is_time_consistent(struct inode *inode)
2708{
2709 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2710 return false;
2711 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2712 return false;
2713 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2714 return false;
2715 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
2716 &F2FS_I(inode)->i_crtime))
2717 return false;
2718 return true;
2719}
2720
Jaegeuk Kim26787232016-11-28 15:33:38 -08002721static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2722{
Chao Yua0d00fa2017-10-09 17:55:19 +08002723 bool ret;
2724
Jaegeuk Kim26787232016-11-28 15:33:38 -08002725 if (dsync) {
2726 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
Jaegeuk Kim26787232016-11-28 15:33:38 -08002727
2728 spin_lock(&sbi->inode_lock[DIRTY_META]);
2729 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2730 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2731 return ret;
2732 }
2733 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2734 file_keep_isize(inode) ||
Junling Zheng235831d2018-03-29 19:27:12 +08002735 i_size_read(inode) & ~PAGE_MASK)
Jaegeuk Kim26787232016-11-28 15:33:38 -08002736 return false;
Chao Yua0d00fa2017-10-09 17:55:19 +08002737
Chao Yufe1897e2019-09-27 18:01:35 +08002738 if (!f2fs_is_time_consistent(inode))
Jaegeuk Kim214c2462018-03-29 22:50:41 -07002739 return false;
2740
Chao Yua0d00fa2017-10-09 17:55:19 +08002741 down_read(&F2FS_I(inode)->i_sem);
2742 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2743 up_read(&F2FS_I(inode)->i_sem);
2744
2745 return ret;
Chao Yu267378d2014-04-23 14:10:24 +08002746}
2747
Chao Yudeeedd72018-03-01 23:40:31 +08002748static inline bool f2fs_readonly(struct super_block *sb)
Jaegeuk Kim77888c12013-05-20 20:28:47 +09002749{
Chao Yudeeedd72018-03-01 23:40:31 +08002750 return sb_rdonly(sb);
Jaegeuk Kim77888c12013-05-20 20:28:47 +09002751}
2752
Jaegeuk Kim744602c2014-01-24 09:42:16 +09002753static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2754{
Chao Yuaaec2b12016-09-20 11:04:18 +08002755 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
Jaegeuk Kim744602c2014-01-24 09:42:16 +09002756}
2757
Jaegeuk Kimeaa693f2015-04-26 00:15:29 -07002758static inline bool is_dot_dotdot(const struct qstr *str)
2759{
2760 if (str->len == 1 && str->name[0] == '.')
2761 return true;
2762
2763 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2764 return true;
2765
2766 return false;
2767}
2768
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07002769static inline bool f2fs_may_extent_tree(struct inode *inode)
2770{
Sahitya Tummalae4589fa2018-12-18 16:39:24 +05302771 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2772
2773 if (!test_opt(sbi, EXTENT_CACHE) ||
Jaegeuk Kim91942322016-05-20 10:13:22 -07002774 is_inode_flag_set(inode, FI_NO_EXTENT))
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07002775 return false;
2776
Sahitya Tummalae4589fa2018-12-18 16:39:24 +05302777 /*
2778 * for recovered files during mount do not create extents
2779 * if shrinker is not registered.
2780 */
2781 if (list_empty(&sbi->s_list))
2782 return false;
2783
Al Viro886f56f2015-12-05 03:56:06 -05002784 return S_ISREG(inode->i_mode);
Jaegeuk Kim3e72f722015-06-19 17:53:26 -07002785}
2786
Chao Yu1ecc0c52016-09-23 21:30:09 +08002787static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2788 size_t size, gfp_t flags)
Jaegeuk Kim0414b002016-04-29 15:16:42 -07002789{
Jaegeuk Kim52225952018-12-13 18:38:33 -08002790 void *ret;
2791
Chao Yu55523512017-02-25 11:08:28 +08002792 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2793 f2fs_show_injection_info(FAULT_KMALLOC);
Jaegeuk Kim2c63fea2016-04-29 15:49:56 -07002794 return NULL;
Chao Yu55523512017-02-25 11:08:28 +08002795 }
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02002796
Jaegeuk Kim52225952018-12-13 18:38:33 -08002797 ret = kmalloc(size, flags);
2798 if (ret)
2799 return ret;
2800
2801 return kvmalloc(size, flags);
Jaegeuk Kim0414b002016-04-29 15:16:42 -07002802}
2803
Chao Yuacbf0542017-11-30 19:28:17 +08002804static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2805 size_t size, gfp_t flags)
2806{
2807 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2808}
2809
Chao Yu628b3d12017-11-30 19:28:18 +08002810static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2811 size_t size, gfp_t flags)
2812{
Chao Yu628b3d12017-11-30 19:28:18 +08002813 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2814 f2fs_show_injection_info(FAULT_KVMALLOC);
2815 return NULL;
2816 }
Arnd Bergmann7fa750a2018-08-13 23:38:06 +02002817
Chao Yu628b3d12017-11-30 19:28:18 +08002818 return kvmalloc(size, flags);
2819}
2820
2821static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2822 size_t size, gfp_t flags)
2823{
2824 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2825}
2826
Chao Yu7a2af762017-07-19 00:19:06 +08002827static inline int get_extra_isize(struct inode *inode)
Chao Yuf2470372017-07-19 00:19:05 +08002828{
Chao Yu7a2af762017-07-19 00:19:06 +08002829 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
Chao Yuf2470372017-07-19 00:19:05 +08002830}
2831
Chao Yu6afc6622017-09-06 21:59:50 +08002832static inline int get_inline_xattr_addrs(struct inode *inode)
2833{
2834 return F2FS_I(inode)->i_inline_xattr_size;
2835}
2836
Chao Yu4d57b862018-05-30 00:20:41 +08002837#define f2fs_get_inode_mode(i) \
Jaegeuk Kim91942322016-05-20 10:13:22 -07002838 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
Christoph Hellwiga6dda0e2013-12-20 05:16:45 -08002839 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2840
Chao Yu7a2af762017-07-19 00:19:06 +08002841#define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2842 (offsetof(struct f2fs_inode, i_extra_end) - \
2843 offsetof(struct f2fs_inode, i_extra_isize)) \
2844
Chao Yu5c571322017-07-26 00:01:41 +08002845#define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2846#define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
Sheng Yong2f84bab2019-01-14 22:05:14 +08002847 ((offsetof(typeof(*(f2fs_inode)), field) + \
Chao Yu5c571322017-07-26 00:01:41 +08002848 sizeof((f2fs_inode)->field)) \
Sheng Yong2f84bab2019-01-14 22:05:14 +08002849 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
Chao Yu5c571322017-07-26 00:01:41 +08002850
Chao Yub0af6d42017-08-02 23:21:48 +08002851static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2852{
2853 int i;
2854
2855 spin_lock(&sbi->iostat_lock);
2856 for (i = 0; i < NR_IO_TYPE; i++)
2857 sbi->write_iostat[i] = 0;
2858 spin_unlock(&sbi->iostat_lock);
2859}
2860
2861static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2862 enum iostat_type type, unsigned long long io_bytes)
2863{
2864 if (!sbi->iostat_enable)
2865 return;
2866 spin_lock(&sbi->iostat_lock);
2867 sbi->write_iostat[type] += io_bytes;
2868
2869 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2870 sbi->write_iostat[APP_BUFFERED_IO] =
2871 sbi->write_iostat[APP_WRITE_IO] -
2872 sbi->write_iostat[APP_DIRECT_IO];
2873 spin_unlock(&sbi->iostat_lock);
2874}
2875
Chao Yu2c70c5e2018-10-24 18:37:26 +08002876#define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
2877
Chao Yu6dc3a122019-04-15 15:26:31 +08002878#define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
Chao Yuc9b60782018-08-01 19:13:44 +08002879
Chao Yue1da7872018-06-05 17:44:11 +08002880bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2881 block_t blkaddr, int type);
Chao Yue1da7872018-06-05 17:44:11 +08002882static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
2883 block_t blkaddr, int type)
2884{
2885 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
Joe Perchesdcbb4c12019-06-18 17:48:42 +08002886 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
2887 blkaddr, type);
Chao Yue1da7872018-06-05 17:44:11 +08002888 f2fs_bug_on(sbi, 1);
2889 }
2890}
2891
2892static inline bool __is_valid_data_blkaddr(block_t blkaddr)
Chao Yu7b525dd2018-05-23 22:25:08 +08002893{
2894 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
2895 return false;
2896 return true;
2897}
2898
Chao Yu240a5912019-03-06 17:30:59 +08002899static inline void f2fs_set_page_private(struct page *page,
2900 unsigned long data)
2901{
2902 if (PagePrivate(page))
2903 return;
2904
2905 get_page(page);
2906 SetPagePrivate(page);
2907 set_page_private(page, data);
2908}
2909
2910static inline void f2fs_clear_page_private(struct page *page)
2911{
2912 if (!PagePrivate(page))
2913 return;
2914
2915 set_page_private(page, 0);
2916 ClearPagePrivate(page);
2917 f2fs_put_page(page, 0);
2918}
2919
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002920/*
2921 * file.c
2922 */
DongOh Shincac5a3d2017-01-30 10:55:18 -08002923int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
Chao Yu4d57b862018-05-30 00:20:41 +08002924void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
Chao Yuc42d28c2019-02-02 17:33:01 +08002925int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002926int f2fs_truncate(struct inode *inode);
David Howellsa528d352017-01-31 16:46:22 +00002927int f2fs_getattr(const struct path *path, struct kstat *stat,
2928 u32 request_mask, unsigned int flags);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002929int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
Chao Yu4d57b862018-05-30 00:20:41 +08002930int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2931void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
Chao Yuc4020b22018-01-11 14:42:30 +08002932int f2fs_precache_extents(struct inode *inode);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002933long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2934long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
Chao Yu78130812018-09-25 15:36:02 +08002935int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
Jaegeuk Kim1ad71a22017-12-07 16:25:39 -08002936int f2fs_pin_file_control(struct inode *inode, bool inc);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002937
2938/*
2939 * inode.c
2940 */
DongOh Shincac5a3d2017-01-30 10:55:18 -08002941void f2fs_set_inode_flags(struct inode *inode);
Chao Yu704956e2017-07-31 20:19:09 +08002942bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2943void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002944struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2945struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
Chao Yu4d57b862018-05-30 00:20:41 +08002946int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2947void f2fs_update_inode(struct inode *inode, struct page *node_page);
2948void f2fs_update_inode_page(struct inode *inode);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002949int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2950void f2fs_evict_inode(struct inode *inode);
Chao Yu4d57b862018-05-30 00:20:41 +08002951void f2fs_handle_failed_inode(struct inode *inode);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002952
2953/*
2954 * namei.c
2955 */
Chao Yu4d57b862018-05-30 00:20:41 +08002956int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
Chao Yub6a06cb2018-02-28 17:07:27 +08002957 bool hot, bool set);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002958struct dentry *f2fs_get_parent(struct dentry *child);
2959
Daniel Rosenberg2c2eb7a2019-07-23 16:05:29 -07002960extern int f2fs_ci_compare(const struct inode *parent,
2961 const struct qstr *name,
Chao Yu950d47f2019-08-21 23:13:35 +08002962 const struct qstr *entry,
2963 bool quick);
Daniel Rosenberg2c2eb7a2019-07-23 16:05:29 -07002964
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09002965/*
2966 * dir.c
2967 */
Chao Yu4d57b862018-05-30 00:20:41 +08002968unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
2969struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
DongOh Shincac5a3d2017-01-30 10:55:18 -08002970 f2fs_hash_t namehash, int *max_slots,
2971 struct f2fs_dentry_ptr *d);
2972int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2973 unsigned int start_pos, struct fscrypt_str *fstr);
Chao Yu4d57b862018-05-30 00:20:41 +08002974void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
DongOh Shincac5a3d2017-01-30 10:55:18 -08002975 struct f2fs_dentry_ptr *d);
Chao Yu4d57b862018-05-30 00:20:41 +08002976struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
DongOh Shincac5a3d2017-01-30 10:55:18 -08002977 const struct qstr *new_name,
2978 const struct qstr *orig_name, struct page *dpage);
Chao Yu4d57b862018-05-30 00:20:41 +08002979void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
DongOh Shincac5a3d2017-01-30 10:55:18 -08002980 unsigned int current_depth);
Chao Yu4d57b862018-05-30 00:20:41 +08002981int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002982void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2983struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2984 struct fscrypt_name *fname, struct page **res_page);
2985struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2986 const struct qstr *child, struct page **res_page);
2987struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2988ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2989 struct page **page);
2990void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2991 struct page *page, struct inode *inode);
DongOh Shincac5a3d2017-01-30 10:55:18 -08002992void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2993 const struct qstr *name, f2fs_hash_t name_hash,
2994 unsigned int bit_pos);
2995int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2996 const struct qstr *orig_name,
2997 struct inode *inode, nid_t ino, umode_t mode);
Chao Yu4d57b862018-05-30 00:20:41 +08002998int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
DongOh Shincac5a3d2017-01-30 10:55:18 -08002999 struct inode *inode, nid_t ino, umode_t mode);
Chao Yu4d57b862018-05-30 00:20:41 +08003000int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003001 struct inode *inode, nid_t ino, umode_t mode);
3002void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3003 struct inode *dir, struct inode *inode);
3004int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3005bool f2fs_empty_dir(struct inode *dir);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003006
Al Virob7f7a5e2013-01-25 16:15:43 -05003007static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3008{
Chao Yu4d57b862018-05-30 00:20:41 +08003009 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
Jaegeuk Kim510022a2015-03-30 15:07:16 -07003010 inode, inode->i_ino, inode->i_mode);
Al Virob7f7a5e2013-01-25 16:15:43 -05003011}
3012
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003013/*
3014 * super.c
3015 */
DongOh Shincac5a3d2017-01-30 10:55:18 -08003016int f2fs_inode_dirtied(struct inode *inode, bool sync);
3017void f2fs_inode_synced(struct inode *inode);
Jaegeuk Kimea676732017-10-06 09:14:28 -07003018int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
Chao Yuaf033b22018-09-20 20:05:00 +08003019int f2fs_quota_sync(struct super_block *sb, int type);
Chao Yu4b2414d2017-08-08 10:54:31 +08003020void f2fs_quota_off_umount(struct super_block *sb);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003021int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3022int f2fs_sync_fs(struct super_block *sb, int sync);
Chao Yu4d57b862018-05-30 00:20:41 +08003023int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003024
3025/*
3026 * hash.c
3027 */
Daniel Rosenberg2c2eb7a2019-07-23 16:05:29 -07003028f2fs_hash_t f2fs_dentry_hash(const struct inode *dir,
3029 const struct qstr *name_info, struct fscrypt_name *fname);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003030
3031/*
3032 * node.c
3033 */
3034struct dnode_of_data;
3035struct node_info;
3036
Chao Yu4d57b862018-05-30 00:20:41 +08003037int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3038bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
Chao Yu50fa53e2018-08-02 23:03:19 +08003039bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3040void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3041void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3042void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
Chao Yu4d57b862018-05-30 00:20:41 +08003043int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3044bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3045bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
Chao Yu77357302018-07-17 00:02:17 +08003046int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
Chao Yu4d57b862018-05-30 00:20:41 +08003047 struct node_info *ni);
3048pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3049int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3050int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3051int f2fs_truncate_xattr_node(struct inode *inode);
Chao Yu50fa53e2018-08-02 23:03:19 +08003052int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3053 unsigned int seq_id);
Chao Yu4d57b862018-05-30 00:20:41 +08003054int f2fs_remove_inode_page(struct inode *inode);
3055struct page *f2fs_new_inode_page(struct inode *inode);
3056struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3057void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3058struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3059struct page *f2fs_get_node_page_ra(struct page *parent, int start);
Chao Yu48018b42018-09-13 07:40:53 +08003060int f2fs_move_node_page(struct page *node_page, int gc_type);
Chao Yu4d57b862018-05-30 00:20:41 +08003061int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
Chao Yu50fa53e2018-08-02 23:03:19 +08003062 struct writeback_control *wbc, bool atomic,
3063 unsigned int *seq_id);
Chao Yu4d57b862018-05-30 00:20:41 +08003064int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3065 struct writeback_control *wbc,
Chao Yub0af6d42017-08-02 23:21:48 +08003066 bool do_balance, enum iostat_type io_type);
Chao Yue2374012018-06-15 14:45:57 +08003067int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
Chao Yu4d57b862018-05-30 00:20:41 +08003068bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3069void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3070void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3071int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3072void f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3073int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3074int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
Chao Yu77357302018-07-17 00:02:17 +08003075int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003076 unsigned int segno, struct f2fs_summary_block *sum);
Jaegeuk Kimedc55aa2018-09-17 17:36:06 -07003077int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
Chao Yu4d57b862018-05-30 00:20:41 +08003078int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3079void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3080int __init f2fs_create_node_manager_caches(void);
3081void f2fs_destroy_node_manager_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003082
3083/*
3084 * segment.c
3085 */
Chao Yu4d57b862018-05-30 00:20:41 +08003086bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3087void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3088void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3089void f2fs_drop_inmem_pages(struct inode *inode);
3090void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3091int f2fs_commit_inmem_pages(struct inode *inode);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003092void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3093void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
Chao Yu39d787b2017-09-29 13:59:38 +08003094int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
Chao Yu4d57b862018-05-30 00:20:41 +08003095int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
Chao Yu1228b482017-09-29 13:59:39 +08003096int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
Chao Yu4d57b862018-05-30 00:20:41 +08003097void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3098void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3099bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3100void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3101void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
Jaegeuk Kim03f2c022019-01-14 10:42:11 -08003102bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
Chao Yu4d57b862018-05-30 00:20:41 +08003103void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3104 struct cp_control *cpc);
Daniel Rosenberg43549942018-08-20 19:21:43 -07003105void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
Daniel Rosenberg4d3aed72019-05-29 17:49:06 -07003106block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3107int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
Chao Yu4d57b862018-05-30 00:20:41 +08003108void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3109int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
Qiuyang Sun04f0b2e2019-06-05 11:33:25 +08003110void allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3111 unsigned int start, unsigned int end);
Chao Yu4d57b862018-05-30 00:20:41 +08003112void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003113int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
Chao Yu4d57b862018-05-30 00:20:41 +08003114bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3115 struct cp_control *cpc);
3116struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3117void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3118 block_t blk_addr);
3119void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
Chao Yub0af6d42017-08-02 23:21:48 +08003120 enum iostat_type io_type);
Chao Yu4d57b862018-05-30 00:20:41 +08003121void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3122void f2fs_outplace_write_data(struct dnode_of_data *dn,
3123 struct f2fs_io_info *fio);
3124int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3125void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003126 block_t old_blkaddr, block_t new_blkaddr,
3127 bool recover_curseg, bool recover_newaddr);
3128void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3129 block_t old_addr, block_t new_addr,
3130 unsigned char version, bool recover_curseg,
3131 bool recover_newaddr);
Chao Yu4d57b862018-05-30 00:20:41 +08003132void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003133 block_t old_blkaddr, block_t *new_blkaddr,
Chao Yufb830fc2017-05-19 23:37:01 +08003134 struct f2fs_summary *sum, int type,
3135 struct f2fs_io_info *fio, bool add_list);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003136void f2fs_wait_on_page_writeback(struct page *page,
Chao Yubae0ee72018-12-25 17:43:42 +08003137 enum page_type type, bool ordered, bool locked);
Jaegeuk Kim0ded69f2018-08-22 21:18:00 -07003138void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
Sahitya Tummala1e78e8b2018-10-10 10:56:22 +05303139void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3140 block_t len);
Chao Yu4d57b862018-05-30 00:20:41 +08003141void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3142void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3143int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003144 unsigned int val, int alloc);
Chao Yu4d57b862018-05-30 00:20:41 +08003145void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3146int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3147void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3148int __init f2fs_create_segment_manager_caches(void);
3149void f2fs_destroy_segment_manager_caches(void);
3150int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3151enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3152 enum page_type type, enum temp_type temp);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003153
3154/*
3155 * checkpoint.c
3156 */
DongOh Shincac5a3d2017-01-30 10:55:18 -08003157void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
Chao Yu4d57b862018-05-30 00:20:41 +08003158struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3159struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
Chao Yu77357302018-07-17 00:02:17 +08003160struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index);
Chao Yu4d57b862018-05-30 00:20:41 +08003161struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
Chao Yue1da7872018-06-05 17:44:11 +08003162bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3163 block_t blkaddr, int type);
Chao Yu4d57b862018-05-30 00:20:41 +08003164int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003165 int type, bool sync);
Chao Yu4d57b862018-05-30 00:20:41 +08003166void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3167long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
Chao Yub0af6d42017-08-02 23:21:48 +08003168 long nr_to_write, enum iostat_type io_type);
Chao Yu4d57b862018-05-30 00:20:41 +08003169void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3170void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3171void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3172bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3173void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
Chao Yu39d787b2017-09-29 13:59:38 +08003174 unsigned int devidx, int type);
Chao Yu4d57b862018-05-30 00:20:41 +08003175bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
Chao Yu39d787b2017-09-29 13:59:38 +08003176 unsigned int devidx, int type);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003177int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
Chao Yu4d57b862018-05-30 00:20:41 +08003178int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3179void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3180void f2fs_add_orphan_inode(struct inode *inode);
3181void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3182int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3183int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3184void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3185void f2fs_remove_dirty_inode(struct inode *inode);
3186int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
Chao Yu50fa53e2018-08-02 23:03:19 +08003187void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi);
Chao Yu4d57b862018-05-30 00:20:41 +08003188int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3189void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3190int __init f2fs_create_checkpoint_caches(void);
3191void f2fs_destroy_checkpoint_caches(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003192
3193/*
3194 * data.c
3195 */
Eric Biggers6dbb1792018-04-18 11:09:48 -07003196int f2fs_init_post_read_processing(void);
3197void f2fs_destroy_post_read_processing(void);
Jaegeuk Kimb9109b02017-05-10 11:28:38 -07003198void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3199void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
Chao Yubab475c2018-09-27 23:41:16 +08003200 struct inode *inode, struct page *page,
3201 nid_t ino, enum page_type type);
Jaegeuk Kimb9109b02017-05-10 11:28:38 -07003202void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003203int f2fs_submit_page_bio(struct f2fs_io_info *fio);
Chao Yu8648de22019-02-19 16:15:29 +08003204int f2fs_merge_page_bio(struct f2fs_io_info *fio);
Chao Yufe16efe2018-05-28 23:47:18 +08003205void f2fs_submit_page_write(struct f2fs_io_info *fio);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003206struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3207 block_t blk_addr, struct bio *bio);
3208int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
Chao Yu4d57b862018-05-30 00:20:41 +08003209void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003210void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
Chao Yu4d57b862018-05-30 00:20:41 +08003211int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3212int f2fs_reserve_new_block(struct dnode_of_data *dn);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003213int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3214int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3215int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
Chao Yu4d57b862018-05-30 00:20:41 +08003216struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003217 int op_flags, bool for_write);
Chao Yu4d57b862018-05-30 00:20:41 +08003218struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3219struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003220 bool for_write);
Chao Yu4d57b862018-05-30 00:20:41 +08003221struct page *f2fs_get_new_data_page(struct inode *inode,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003222 struct page *ipage, pgoff_t index, bool new_i_size);
Chao Yu4d57b862018-05-30 00:20:41 +08003223int f2fs_do_write_data_page(struct f2fs_io_info *fio);
Chao Yu39a86952018-09-27 18:33:18 +08003224void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003225int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3226 int create, int flag);
3227int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3228 u64 start, u64 len);
Chao Yu4d57b862018-05-30 00:20:41 +08003229bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3230bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003231void f2fs_invalidate_page(struct page *page, unsigned int offset,
3232 unsigned int length);
3233int f2fs_release_page(struct page *page, gfp_t wait);
Weichao Guo5b7a4872016-09-20 05:03:27 +08003234#ifdef CONFIG_MIGRATION
DongOh Shincac5a3d2017-01-30 10:55:18 -08003235int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3236 struct page *page, enum migrate_mode mode);
Weichao Guo5b7a4872016-09-20 05:03:27 +08003237#endif
Hyunchul Leeb91050a2018-03-08 19:34:38 +09003238bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
Matthew Wilcox5ec2d992017-12-04 20:25:25 -05003239void f2fs_clear_page_cache_dirty_tag(struct page *page);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003240
3241/*
3242 * gc.c
3243 */
Chao Yu4d57b862018-05-30 00:20:41 +08003244int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3245void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3246block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
Jaegeuk Kime066b832017-04-13 15:17:00 -07003247int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3248 unsigned int segno);
Chao Yu4d57b862018-05-30 00:20:41 +08003249void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
Qiuyang Sun04f0b2e2019-06-05 11:33:25 +08003250int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003251
3252/*
3253 * recovery.c
3254 */
Chao Yu4d57b862018-05-30 00:20:41 +08003255int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3256bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003257
3258/*
3259 * debug.c
3260 */
3261#ifdef CONFIG_F2FS_STAT_FS
3262struct f2fs_stat_info {
3263 struct list_head stat_list;
3264 struct f2fs_sb_info *sbi;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003265 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3266 int main_area_segs, main_area_sections, main_area_zones;
Chao Yu5b7ee372015-09-30 17:38:48 +08003267 unsigned long long hit_largest, hit_cached, hit_rbtree;
3268 unsigned long long hit_total, total_ext;
Jaegeuk Kimc00ba552015-12-31 15:24:14 -08003269 int ext_tree, zombie_tree, ext_node;
Jaegeuk Kim2c8a4a22017-11-13 17:46:38 -08003270 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3271 int ndirty_data, ndirty_qdata;
Jaegeuk Kim35782b22016-10-20 19:09:57 -07003272 int inmem_pages;
Jaegeuk Kim2c8a4a22017-11-13 17:46:38 -08003273 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
Jaegeuk Kim5b0ef732017-05-01 18:13:03 -07003274 int nats, dirty_nats, sits, dirty_sits;
3275 int free_nids, avail_nids, alloc_nids;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003276 int total_count, utilization;
Chao Yu8b8dd652017-03-25 17:19:58 +08003277 int bg_gc, nr_wb_cp_data, nr_wb_data;
Jaegeuk Kim5f9abab2018-10-16 10:20:53 -07003278 int nr_rd_data, nr_rd_node, nr_rd_meta;
Chao Yu02b16d02018-11-12 00:46:46 +08003279 int nr_dio_read, nr_dio_write;
Chao Yu274bd9b2018-09-29 18:31:28 +08003280 unsigned int io_skip_bggc, other_skip_bggc;
Chao Yu14d8d5f2017-09-14 10:18:01 +08003281 int nr_flushing, nr_flushed, flush_list_empty;
3282 int nr_discarding, nr_discarded;
Chao Yu5f323662017-03-25 17:19:59 +08003283 int nr_discard_cmd;
Chao Yud84d1cb2017-04-18 19:27:39 +08003284 unsigned int undiscard_blks;
Jaegeuk Kima00861d2017-02-01 15:40:11 -08003285 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
Chao Yu648d50b2017-03-22 17:23:45 +08003286 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
Yunlei Hef83a2582016-08-18 21:01:18 +08003287 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003288 unsigned int bimodal, avg_vblocks;
3289 int util_free, util_valid, util_invalid;
3290 int rsvd_segs, overp_segs;
3291 int dirty_count, node_pages, meta_pages;
Jaegeuk Kim42190d22016-01-09 13:45:17 -08003292 int prefree_count, call_count, cp_count, bg_cp_count;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003293 int tot_segs, node_segs, data_segs, free_segs, free_secs;
Changman Leee1235982014-12-23 08:37:39 +09003294 int bg_node_segs, bg_data_segs;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003295 int tot_blks, data_blks, node_blks;
Changman Leee1235982014-12-23 08:37:39 +09003296 int bg_data_blks, bg_node_blks;
Chao Yu2ef79ec2018-05-07 20:28:54 +08003297 unsigned long long skipped_atomic_files[2];
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003298 int curseg[NR_CURSEG_TYPE];
3299 int cursec[NR_CURSEG_TYPE];
3300 int curzone[NR_CURSEG_TYPE];
3301
Chao Yub63e7be2018-09-29 18:31:27 +08003302 unsigned int meta_count[META_MAX];
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003303 unsigned int segment_count[2];
3304 unsigned int block_count[2];
Changman Leeb9a2c252014-12-24 02:16:54 +09003305 unsigned int inplace_count;
Chao Yu9edcdab2015-09-11 14:43:52 +08003306 unsigned long long base_mem, cache_mem, page_mem;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003307};
3308
Gu Zheng963d4f72013-07-12 14:47:11 +08003309static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3310{
Chris Fries6c311ec2014-01-17 14:44:39 -06003311 return (struct f2fs_stat_info *)sbi->stat_info;
Gu Zheng963d4f72013-07-12 14:47:11 +08003312}
3313
Changman Lee942e0be2014-02-13 15:12:29 +09003314#define stat_inc_cp_count(si) ((si)->cp_count++)
Jaegeuk Kim42190d22016-01-09 13:45:17 -08003315#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09003316#define stat_inc_call_count(si) ((si)->call_count++)
3317#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
Chao Yu274bd9b2018-09-29 18:31:28 +08003318#define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3319#define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
Chao Yu33fbd512015-12-17 17:14:44 +08003320#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3321#define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
Chao Yu5b7ee372015-09-30 17:38:48 +08003322#define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3323#define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3324#define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3325#define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
Chao Yud5e8f6c2015-07-15 17:28:53 +08003326#define stat_inc_inline_xattr(inode) \
3327 do { \
3328 if (f2fs_has_inline_xattr(inode)) \
3329 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3330 } while (0)
3331#define stat_dec_inline_xattr(inode) \
3332 do { \
3333 if (f2fs_has_inline_xattr(inode)) \
3334 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3335 } while (0)
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09003336#define stat_inc_inline_inode(inode) \
3337 do { \
3338 if (f2fs_has_inline_data(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08003339 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09003340 } while (0)
3341#define stat_dec_inline_inode(inode) \
3342 do { \
3343 if (f2fs_has_inline_data(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08003344 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
Jaegeuk Kim0dbdc2a2013-11-26 11:08:57 +09003345 } while (0)
Jaegeuk Kim3289c062014-10-13 20:00:16 -07003346#define stat_inc_inline_dir(inode) \
3347 do { \
3348 if (f2fs_has_inline_dentry(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08003349 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
Jaegeuk Kim3289c062014-10-13 20:00:16 -07003350 } while (0)
3351#define stat_dec_inline_dir(inode) \
3352 do { \
3353 if (f2fs_has_inline_dentry(inode)) \
Chao Yu03e14d52014-12-08 19:08:20 +08003354 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
Jaegeuk Kim3289c062014-10-13 20:00:16 -07003355 } while (0)
Chao Yub63e7be2018-09-29 18:31:27 +08003356#define stat_inc_meta_count(sbi, blkaddr) \
3357 do { \
3358 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3359 atomic_inc(&(sbi)->meta_count[META_CP]); \
3360 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3361 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3362 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3363 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3364 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3365 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3366 } while (0)
Jaegeuk Kimdcdfff62013-10-22 20:56:10 +09003367#define stat_inc_seg_type(sbi, curseg) \
3368 ((sbi)->segment_count[(curseg)->alloc_type]++)
3369#define stat_inc_block_count(sbi, curseg) \
3370 ((sbi)->block_count[(curseg)->alloc_type]++)
Changman Leeb9a2c252014-12-24 02:16:54 +09003371#define stat_inc_inplace_blocks(sbi) \
3372 (atomic_inc(&(sbi)->inplace_count))
Jaegeuk Kim26a28a02016-12-28 13:55:09 -08003373#define stat_inc_atomic_write(inode) \
DongOh Shincac5a3d2017-01-30 10:55:18 -08003374 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
Jaegeuk Kim26a28a02016-12-28 13:55:09 -08003375#define stat_dec_atomic_write(inode) \
DongOh Shincac5a3d2017-01-30 10:55:18 -08003376 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
Jaegeuk Kim26a28a02016-12-28 13:55:09 -08003377#define stat_update_max_atomic_write(inode) \
3378 do { \
3379 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3380 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3381 if (cur > max) \
3382 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3383 } while (0)
Chao Yu648d50b2017-03-22 17:23:45 +08003384#define stat_inc_volatile_write(inode) \
3385 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3386#define stat_dec_volatile_write(inode) \
3387 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3388#define stat_update_max_volatile_write(inode) \
3389 do { \
3390 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3391 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3392 if (cur > max) \
3393 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3394 } while (0)
Changman Leee1235982014-12-23 08:37:39 +09003395#define stat_inc_seg_count(sbi, type, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003396 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08003397 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +03003398 si->tot_segs++; \
3399 if ((type) == SUM_TYPE_DATA) { \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003400 si->data_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09003401 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3402 } else { \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003403 si->node_segs++; \
Changman Leee1235982014-12-23 08:37:39 +09003404 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3405 } \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003406 } while (0)
3407
3408#define stat_inc_tot_blk_count(si, blks) \
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +03003409 ((si)->tot_blks += (blks))
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003410
Changman Leee1235982014-12-23 08:37:39 +09003411#define stat_inc_data_blk_count(sbi, blks, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003412 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08003413 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003414 stat_inc_tot_blk_count(si, blks); \
3415 si->data_blks += (blks); \
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +03003416 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003417 } while (0)
3418
Changman Leee1235982014-12-23 08:37:39 +09003419#define stat_inc_node_blk_count(sbi, blks, gc_type) \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003420 do { \
Gu Zheng963d4f72013-07-12 14:47:11 +08003421 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003422 stat_inc_tot_blk_count(si, blks); \
3423 si->node_blks += (blks); \
Tomohiro Kusumi68afcf22017-04-09 02:11:36 +03003424 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003425 } while (0)
3426
DongOh Shincac5a3d2017-01-30 10:55:18 -08003427int f2fs_build_stats(struct f2fs_sb_info *sbi);
3428void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
Greg Kroah-Hartman21acc072019-01-04 14:26:18 +01003429void __init f2fs_create_root_stats(void);
Namjae Jeon4589d252013-01-15 19:58:47 +09003430void f2fs_destroy_root_stats(void);
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003431#else
Arnd Bergmannd66450e2017-04-19 19:38:33 +02003432#define stat_inc_cp_count(si) do { } while (0)
3433#define stat_inc_bg_cp_count(si) do { } while (0)
3434#define stat_inc_call_count(si) do { } while (0)
3435#define stat_inc_bggc_count(si) do { } while (0)
Chao Yu274bd9b2018-09-29 18:31:28 +08003436#define stat_io_skip_bggc_count(sbi) do { } while (0)
3437#define stat_other_skip_bggc_count(sbi) do { } while (0)
Arnd Bergmannd66450e2017-04-19 19:38:33 +02003438#define stat_inc_dirty_inode(sbi, type) do { } while (0)
3439#define stat_dec_dirty_inode(sbi, type) do { } while (0)
3440#define stat_inc_total_hit(sb) do { } while (0)
3441#define stat_inc_rbtree_node_hit(sb) do { } while (0)
3442#define stat_inc_largest_node_hit(sbi) do { } while (0)
3443#define stat_inc_cached_node_hit(sbi) do { } while (0)
3444#define stat_inc_inline_xattr(inode) do { } while (0)
3445#define stat_dec_inline_xattr(inode) do { } while (0)
3446#define stat_inc_inline_inode(inode) do { } while (0)
3447#define stat_dec_inline_inode(inode) do { } while (0)
3448#define stat_inc_inline_dir(inode) do { } while (0)
3449#define stat_dec_inline_dir(inode) do { } while (0)
3450#define stat_inc_atomic_write(inode) do { } while (0)
3451#define stat_dec_atomic_write(inode) do { } while (0)
3452#define stat_update_max_atomic_write(inode) do { } while (0)
3453#define stat_inc_volatile_write(inode) do { } while (0)
3454#define stat_dec_volatile_write(inode) do { } while (0)
3455#define stat_update_max_volatile_write(inode) do { } while (0)
Chao Yub63e7be2018-09-29 18:31:27 +08003456#define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
Arnd Bergmannd66450e2017-04-19 19:38:33 +02003457#define stat_inc_seg_type(sbi, curseg) do { } while (0)
3458#define stat_inc_block_count(sbi, curseg) do { } while (0)
3459#define stat_inc_inplace_blocks(sbi) do { } while (0)
3460#define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3461#define stat_inc_tot_blk_count(si, blks) do { } while (0)
3462#define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3463#define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003464
3465static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3466static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
Greg Kroah-Hartman21acc072019-01-04 14:26:18 +01003467static inline void __init f2fs_create_root_stats(void) { }
Namjae Jeon4589d252013-01-15 19:58:47 +09003468static inline void f2fs_destroy_root_stats(void) { }
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003469#endif
3470
3471extern const struct file_operations f2fs_dir_operations;
Daniel Rosenberg2c2eb7a2019-07-23 16:05:29 -07003472#ifdef CONFIG_UNICODE
3473extern const struct dentry_operations f2fs_dentry_ops;
3474#endif
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003475extern const struct file_operations f2fs_file_operations;
3476extern const struct inode_operations f2fs_file_inode_operations;
3477extern const struct address_space_operations f2fs_dblock_aops;
3478extern const struct address_space_operations f2fs_node_aops;
3479extern const struct address_space_operations f2fs_meta_aops;
3480extern const struct inode_operations f2fs_dir_inode_operations;
3481extern const struct inode_operations f2fs_symlink_inode_operations;
Jaegeuk Kimcbaf0422015-04-29 15:10:53 -07003482extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
Jaegeuk Kim39a53e02012-11-28 13:37:31 +09003483extern const struct inode_operations f2fs_special_inode_operations;
Chao Yu4d57b862018-05-30 00:20:41 +08003484extern struct kmem_cache *f2fs_inode_entry_slab;
Huajun Li1001b342013-11-10 23:13:16 +08003485
Huajun Lie18c65b2013-11-10 23:13:19 +08003486/*
3487 * inline.c
3488 */
DongOh Shincac5a3d2017-01-30 10:55:18 -08003489bool f2fs_may_inline_data(struct inode *inode);
3490bool f2fs_may_inline_dentry(struct inode *inode);
Chao Yu4d57b862018-05-30 00:20:41 +08003491void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3492void f2fs_truncate_inline_inode(struct inode *inode,
3493 struct page *ipage, u64 from);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003494int f2fs_read_inline_data(struct inode *inode, struct page *page);
3495int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3496int f2fs_convert_inline_inode(struct inode *inode);
3497int f2fs_write_inline_data(struct inode *inode, struct page *page);
Chao Yu4d57b862018-05-30 00:20:41 +08003498bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3499struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003500 struct fscrypt_name *fname, struct page **res_page);
Chao Yu4d57b862018-05-30 00:20:41 +08003501int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003502 struct page *ipage);
3503int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3504 const struct qstr *orig_name,
3505 struct inode *inode, nid_t ino, umode_t mode);
Chao Yu4d57b862018-05-30 00:20:41 +08003506void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3507 struct page *page, struct inode *dir,
3508 struct inode *inode);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003509bool f2fs_empty_inline_dir(struct inode *dir);
3510int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3511 struct fscrypt_str *fstr);
3512int f2fs_inline_data_fiemap(struct inode *inode,
3513 struct fiemap_extent_info *fieinfo,
3514 __u64 start, __u64 len);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07003515
3516/*
Jaegeuk Kim2658e502015-06-19 12:01:21 -07003517 * shrinker.c
3518 */
DongOh Shincac5a3d2017-01-30 10:55:18 -08003519unsigned long f2fs_shrink_count(struct shrinker *shrink,
3520 struct shrink_control *sc);
3521unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3522 struct shrink_control *sc);
3523void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3524void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
Jaegeuk Kim2658e502015-06-19 12:01:21 -07003525
3526/*
Chao Yua28ef1f2015-07-08 17:59:36 +08003527 * extent_cache.c
3528 */
Chao Yu4dada3f2018-10-04 11:18:30 +08003529struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
Chao Yu004b6862017-04-14 23:24:55 +08003530 struct rb_entry *cached_re, unsigned int ofs);
Chao Yu4d57b862018-05-30 00:20:41 +08003531struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
Chao Yu4dada3f2018-10-04 11:18:30 +08003532 struct rb_root_cached *root,
3533 struct rb_node **parent,
3534 unsigned int ofs, bool *leftmost);
3535struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
Chao Yu004b6862017-04-14 23:24:55 +08003536 struct rb_entry *cached_re, unsigned int ofs,
3537 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3538 struct rb_node ***insert_p, struct rb_node **insert_parent,
Chao Yu4dada3f2018-10-04 11:18:30 +08003539 bool force, bool *leftmost);
Chao Yu4d57b862018-05-30 00:20:41 +08003540bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
Chao Yu4dada3f2018-10-04 11:18:30 +08003541 struct rb_root_cached *root);
DongOh Shincac5a3d2017-01-30 10:55:18 -08003542unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3543bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3544void f2fs_drop_extent_tree(struct inode *inode);
3545unsigned int f2fs_destroy_extent_node(struct inode *inode);
3546void f2fs_destroy_extent_tree(struct inode *inode);
3547bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3548 struct extent_info *ei);
3549void f2fs_update_extent_cache(struct dnode_of_data *dn);
Chao Yu19b2c302015-08-26 20:34:48 +08003550void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
DongOh Shincac5a3d2017-01-30 10:55:18 -08003551 pgoff_t fofs, block_t blkaddr, unsigned int len);
Chao Yu4d57b862018-05-30 00:20:41 +08003552void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3553int __init f2fs_create_extent_cache(void);
3554void f2fs_destroy_extent_cache(void);
Chao Yua28ef1f2015-07-08 17:59:36 +08003555
3556/*
Chao Yu8ceffcb2017-06-14 17:39:47 +08003557 * sysfs.c
3558 */
Jaegeuk Kimdc6b2052017-07-26 11:24:13 -07003559int __init f2fs_init_sysfs(void);
3560void f2fs_exit_sysfs(void);
3561int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3562void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
Chao Yu8ceffcb2017-06-14 17:39:47 +08003563
Eric Biggers95ae2512019-07-22 09:26:24 -07003564/* verity.c */
3565extern const struct fsverity_operations f2fs_verityops;
3566
Chao Yu8ceffcb2017-06-14 17:39:47 +08003567/*
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07003568 * crypto support
3569 */
Jaegeuk Kim19585932017-09-05 16:54:24 -07003570static inline bool f2fs_encrypted_file(struct inode *inode)
3571{
Chandan Rajendra62230e0d2018-12-12 15:20:11 +05303572 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
Jaegeuk Kim19585932017-09-05 16:54:24 -07003573}
3574
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07003575static inline void f2fs_set_encrypted_inode(struct inode *inode)
3576{
Chandan Rajendra643fa962018-12-12 15:20:12 +05303577#ifdef CONFIG_FS_ENCRYPTION
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07003578 file_set_encrypt(inode);
Chao Yu9149a5e2018-10-07 19:06:15 +08003579 f2fs_set_inode_flags(inode);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07003580#endif
3581}
3582
Eric Biggers6dbb1792018-04-18 11:09:48 -07003583/*
3584 * Returns true if the reads of the inode's data need to undergo some
3585 * postprocessing step, like decryption or authenticity verification.
3586 */
3587static inline bool f2fs_post_read_required(struct inode *inode)
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07003588{
Eric Biggers95ae2512019-07-22 09:26:24 -07003589 return f2fs_encrypted_file(inode) || fsverity_active(inode);
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07003590}
3591
Sheng Yongccd31cb2018-02-06 12:31:17 +08003592#define F2FS_FEATURE_FUNCS(name, flagname) \
Chao Yu7beb01f2018-10-24 18:34:26 +08003593static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
Sheng Yongccd31cb2018-02-06 12:31:17 +08003594{ \
Chao Yu7beb01f2018-10-24 18:34:26 +08003595 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
Jaegeuk Kimcde4de12015-04-20 13:57:51 -07003596}
Jaegeuk Kimf424f662015-04-20 15:19:06 -07003597
Sheng Yongccd31cb2018-02-06 12:31:17 +08003598F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3599F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3600F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3601F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3602F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3603F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3604F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3605F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
Sheng Yongb7c409d2018-03-15 18:51:41 +08003606F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
Eric Biggers95ae2512019-07-22 09:26:24 -07003607F2FS_FEATURE_FUNCS(verity, VERITY);
Junling Zhengd440c522018-09-28 20:25:56 +08003608F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
Daniel Rosenberg5aba5432019-07-23 16:05:28 -07003609F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
Chao Yu1c1d35d2018-01-25 14:54:42 +08003610
Damien Le Moal178053e2016-10-28 17:45:05 +09003611#ifdef CONFIG_BLK_DEV_ZONED
Damien Le Moal95175da2019-03-16 09:13:07 +09003612static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
3613 block_t blkaddr)
Damien Le Moal178053e2016-10-28 17:45:05 +09003614{
3615 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3616
Damien Le Moal95175da2019-03-16 09:13:07 +09003617 return test_bit(zno, FDEV(devi).blkz_seq);
Damien Le Moal178053e2016-10-28 17:45:05 +09003618}
3619#endif
3620
Chao Yu7d20c8a2018-09-04 03:52:17 +08003621static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
Damien Le Moal96ba2de2016-10-28 17:45:03 +09003622{
Chao Yu7beb01f2018-10-24 18:34:26 +08003623 return f2fs_sb_has_blkzoned(sbi);
Chao Yu7d20c8a2018-09-04 03:52:17 +08003624}
Damien Le Moal96ba2de2016-10-28 17:45:03 +09003625
Damien Le Moal7f3d7712019-03-16 09:13:08 +09003626static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
3627{
3628 return blk_queue_discard(bdev_get_queue(bdev)) ||
3629 bdev_is_zoned(bdev);
3630}
3631
Chao Yu7d20c8a2018-09-04 03:52:17 +08003632static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
3633{
Damien Le Moal7f3d7712019-03-16 09:13:08 +09003634 int i;
3635
3636 if (!f2fs_is_multi_device(sbi))
3637 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
3638
3639 for (i = 0; i < sbi->s_ndevs; i++)
3640 if (f2fs_bdev_support_discard(FDEV(i).bdev))
3641 return true;
3642 return false;
Chao Yu7d20c8a2018-09-04 03:52:17 +08003643}
3644
3645static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
3646{
3647 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
3648 f2fs_hw_should_discard(sbi);
Jaegeuk Kim52763a42016-06-13 09:47:48 -07003649}
3650
Chao Yuf824deb2019-04-22 20:22:36 +08003651static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
3652{
3653 int i;
3654
3655 if (!f2fs_is_multi_device(sbi))
3656 return bdev_read_only(sbi->sb->s_bdev);
3657
3658 for (i = 0; i < sbi->s_ndevs; i++)
3659 if (bdev_read_only(FDEV(i).bdev))
3660 return true;
3661 return false;
3662}
3663
3664
Jaegeuk Kim52763a42016-06-13 09:47:48 -07003665static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3666{
3667 clear_opt(sbi, ADAPTIVE);
3668 clear_opt(sbi, LFS);
3669
3670 switch (mt) {
3671 case F2FS_MOUNT_ADAPTIVE:
3672 set_opt(sbi, ADAPTIVE);
3673 break;
3674 case F2FS_MOUNT_LFS:
3675 set_opt(sbi, LFS);
3676 break;
3677 }
3678}
3679
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07003680static inline bool f2fs_may_encrypt(struct inode *inode)
3681{
Chandan Rajendra643fa962018-12-12 15:20:12 +05303682#ifdef CONFIG_FS_ENCRYPTION
Al Viro886f56f2015-12-05 03:56:06 -05003683 umode_t mode = inode->i_mode;
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07003684
3685 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3686#else
Gustavo A. R. Silva6e45f2a2018-08-01 19:51:38 -05003687 return false;
Jaegeuk Kimfcc85a42015-04-21 20:39:58 -07003688#endif
3689}
3690
Chao Yuf847c692018-09-27 18:34:52 +08003691static inline int block_unaligned_IO(struct inode *inode,
3692 struct kiocb *iocb, struct iov_iter *iter)
Hyunchul Leeb91050a2018-03-08 19:34:38 +09003693{
Chao Yuf847c692018-09-27 18:34:52 +08003694 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
3695 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
3696 loff_t offset = iocb->ki_pos;
3697 unsigned long align = offset | iov_iter_alignment(iter);
3698
3699 return align & blocksize_mask;
3700}
3701
3702static inline int allow_outplace_dio(struct inode *inode,
3703 struct kiocb *iocb, struct iov_iter *iter)
3704{
3705 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3706 int rw = iov_iter_rw(iter);
3707
3708 return (test_opt(sbi, LFS) && (rw == WRITE) &&
3709 !block_unaligned_IO(inode, iocb, iter));
3710}
3711
3712static inline bool f2fs_force_buffered_io(struct inode *inode,
3713 struct kiocb *iocb, struct iov_iter *iter)
3714{
3715 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3716 int rw = iov_iter_rw(iter);
3717
3718 if (f2fs_post_read_required(inode))
3719 return true;
Damien Le Moal09168782019-03-16 09:13:06 +09003720 if (f2fs_is_multi_device(sbi))
Chao Yuf847c692018-09-27 18:34:52 +08003721 return true;
3722 /*
3723 * for blkzoned device, fallback direct IO to buffered IO, so
3724 * all IOs can be serialized by log-structured write.
3725 */
Chao Yu7beb01f2018-10-24 18:34:26 +08003726 if (f2fs_sb_has_blkzoned(sbi))
Chao Yuf847c692018-09-27 18:34:52 +08003727 return true;
Chao Yu9720ee82019-08-28 17:33:37 +08003728 if (test_opt(sbi, LFS) && (rw == WRITE)) {
3729 if (block_unaligned_IO(inode, iocb, iter))
3730 return true;
3731 if (F2FS_IO_ALIGNED(sbi))
3732 return true;
3733 }
Jaegeuk Kim4969c062019-07-01 19:15:29 -07003734 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) &&
Chao Yu3ee0c5d2019-08-15 19:45:34 +08003735 !IS_SWAPFILE(inode))
Daniel Rosenberg43549942018-08-20 19:21:43 -07003736 return true;
3737
Chao Yuf847c692018-09-27 18:34:52 +08003738 return false;
Hyunchul Leeb91050a2018-03-08 19:34:38 +09003739}
3740
Jaegeuk Kim83a3bfd2018-06-21 13:46:23 -07003741#ifdef CONFIG_F2FS_FAULT_INJECTION
Chao Yud4945002018-08-08 17:36:41 +08003742extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
3743 unsigned int type);
Jaegeuk Kim83a3bfd2018-06-21 13:46:23 -07003744#else
Chao Yud4945002018-08-08 17:36:41 +08003745#define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
Jaegeuk Kim83a3bfd2018-06-21 13:46:23 -07003746#endif
3747
Chao Yuaf033b22018-09-20 20:05:00 +08003748static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
3749{
3750#ifdef CONFIG_QUOTA
Chao Yu7beb01f2018-10-24 18:34:26 +08003751 if (f2fs_sb_has_quota_ino(sbi))
Chao Yuaf033b22018-09-20 20:05:00 +08003752 return true;
3753 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
3754 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
3755 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
3756 return true;
3757#endif
3758 return false;
3759}
Jaegeuk Kim0af725f2019-02-15 19:04:38 -08003760
Chao Yu10f966b2019-06-20 11:36:14 +08003761#define EFSBADCRC EBADMSG /* Bad CRC detected */
3762#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
3763
Chao Yue1074d42019-04-02 18:52:20 +08003764#endif /* _LINUX_F2FS_H */