Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 1 | /* |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2 | * fs/f2fs/f2fs.h |
| 3 | * |
| 4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. |
| 5 | * http://www.samsung.com/ |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | #ifndef _LINUX_F2FS_H |
| 12 | #define _LINUX_F2FS_H |
| 13 | |
| 14 | #include <linux/types.h> |
| 15 | #include <linux/page-flags.h> |
| 16 | #include <linux/buffer_head.h> |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 17 | #include <linux/slab.h> |
| 18 | #include <linux/crc32.h> |
| 19 | #include <linux/magic.h> |
Jaegeuk Kim | c2d715d | 2013-08-08 15:56:49 +0900 | [diff] [blame] | 20 | #include <linux/kobject.h> |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 21 | #include <linux/sched.h> |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 22 | #include <linux/writeback.h> |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 23 | #include <linux/vmalloc.h> |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 24 | #include <linux/bio.h> |
Jaegeuk Kim | d0239e1 | 2016-01-08 16:57:48 -0800 | [diff] [blame] | 25 | #include <linux/blkdev.h> |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 26 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
| 27 | #include <linux/fscrypt_supp.h> |
| 28 | #else |
| 29 | #include <linux/fscrypt_notsupp.h> |
| 30 | #endif |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 31 | #include <crypto/hash.h> |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 32 | |
Jaegeuk Kim | 5d56b67 | 2013-10-29 15:14:54 +0900 | [diff] [blame] | 33 | #ifdef CONFIG_F2FS_CHECK_FS |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 34 | #define f2fs_bug_on(sbi, condition) BUG_ON(condition) |
Jaegeuk Kim | 5d56b67 | 2013-10-29 15:14:54 +0900 | [diff] [blame] | 35 | #else |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 36 | #define f2fs_bug_on(sbi, condition) \ |
| 37 | do { \ |
| 38 | if (unlikely(condition)) { \ |
| 39 | WARN_ON(1); \ |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 40 | set_sbi_flag(sbi, SBI_NEED_FSCK); \ |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 41 | } \ |
| 42 | } while (0) |
Jaegeuk Kim | 5d56b67 | 2013-10-29 15:14:54 +0900 | [diff] [blame] | 43 | #endif |
| 44 | |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 45 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
| 46 | enum { |
| 47 | FAULT_KMALLOC, |
Jaegeuk Kim | c41f3cc3 | 2016-04-29 16:17:09 -0700 | [diff] [blame] | 48 | FAULT_PAGE_ALLOC, |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 49 | FAULT_ALLOC_NID, |
| 50 | FAULT_ORPHAN, |
| 51 | FAULT_BLOCK, |
| 52 | FAULT_DIR_DEPTH, |
Jaegeuk Kim | 53aa6bb | 2016-05-25 15:24:18 -0700 | [diff] [blame] | 53 | FAULT_EVICT_INODE, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 54 | FAULT_TRUNCATE, |
Chao Yu | 8b038c7 | 2016-09-18 23:30:07 +0800 | [diff] [blame] | 55 | FAULT_IO, |
Chao Yu | 0f34802 | 2016-09-26 19:45:55 +0800 | [diff] [blame] | 56 | FAULT_CHECKPOINT, |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 57 | FAULT_MAX, |
| 58 | }; |
| 59 | |
Sheng Yong | 0879689 | 2016-05-16 12:38:50 +0800 | [diff] [blame] | 60 | struct f2fs_fault_info { |
| 61 | atomic_t inject_ops; |
| 62 | unsigned int inject_rate; |
| 63 | unsigned int inject_type; |
| 64 | }; |
| 65 | |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 66 | extern char *fault_name[FAULT_MAX]; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 67 | #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type))) |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 68 | #endif |
| 69 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 70 | /* |
| 71 | * For mount options |
| 72 | */ |
| 73 | #define F2FS_MOUNT_BG_GC 0x00000001 |
| 74 | #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 |
| 75 | #define F2FS_MOUNT_DISCARD 0x00000004 |
| 76 | #define F2FS_MOUNT_NOHEAP 0x00000008 |
| 77 | #define F2FS_MOUNT_XATTR_USER 0x00000010 |
| 78 | #define F2FS_MOUNT_POSIX_ACL 0x00000020 |
| 79 | #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 80 | #define F2FS_MOUNT_INLINE_XATTR 0x00000080 |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 81 | #define F2FS_MOUNT_INLINE_DATA 0x00000100 |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 82 | #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 |
| 83 | #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 |
| 84 | #define F2FS_MOUNT_NOBARRIER 0x00000800 |
Jaegeuk Kim | d5053a34 | 2014-10-30 22:47:03 -0700 | [diff] [blame] | 85 | #define F2FS_MOUNT_FASTBOOT 0x00001000 |
Chao Yu | 8967215 | 2015-02-05 17:55:51 +0800 | [diff] [blame] | 86 | #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 |
Jaegeuk Kim | 6aefd93 | 2015-10-05 11:02:54 -0700 | [diff] [blame] | 87 | #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 |
Chao Yu | 343f40f | 2015-12-16 13:12:16 +0800 | [diff] [blame] | 88 | #define F2FS_MOUNT_DATA_FLUSH 0x00008000 |
Jaegeuk Kim | 73faec4 | 2016-04-29 15:34:32 -0700 | [diff] [blame] | 89 | #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 |
Jaegeuk Kim | 36abef4 | 2016-06-03 19:29:38 -0700 | [diff] [blame] | 90 | #define F2FS_MOUNT_ADAPTIVE 0x00020000 |
| 91 | #define F2FS_MOUNT_LFS 0x00040000 |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 92 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 93 | #define clear_opt(sbi, option) ((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option) |
| 94 | #define set_opt(sbi, option) ((sbi)->mount_opt.opt |= F2FS_MOUNT_##option) |
| 95 | #define test_opt(sbi, option) ((sbi)->mount_opt.opt & F2FS_MOUNT_##option) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 96 | |
| 97 | #define ver_after(a, b) (typecheck(unsigned long long, a) && \ |
| 98 | typecheck(unsigned long long, b) && \ |
| 99 | ((long long)((a) - (b)) > 0)) |
| 100 | |
Jaegeuk Kim | a9841c4 | 2013-05-24 12:41:04 +0900 | [diff] [blame] | 101 | typedef u32 block_t; /* |
| 102 | * should not change u32, since it is the on-disk block |
| 103 | * address format, __le32. |
| 104 | */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 105 | typedef u32 nid_t; |
| 106 | |
| 107 | struct f2fs_mount_info { |
| 108 | unsigned int opt; |
| 109 | }; |
| 110 | |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 111 | #define F2FS_FEATURE_ENCRYPT 0x0001 |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 112 | #define F2FS_FEATURE_BLKZONED 0x0002 |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 113 | |
Jaegeuk Kim | 76f105a | 2015-04-13 15:10:36 -0700 | [diff] [blame] | 114 | #define F2FS_HAS_FEATURE(sb, mask) \ |
| 115 | ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0) |
| 116 | #define F2FS_SET_FEATURE(sb, mask) \ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 117 | (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask)) |
Jaegeuk Kim | 76f105a | 2015-04-13 15:10:36 -0700 | [diff] [blame] | 118 | #define F2FS_CLEAR_FEATURE(sb, mask) \ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 119 | (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask)) |
Jaegeuk Kim | 76f105a | 2015-04-13 15:10:36 -0700 | [diff] [blame] | 120 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 121 | /* |
| 122 | * For checkpoint manager |
| 123 | */ |
| 124 | enum { |
| 125 | NAT_BITMAP, |
| 126 | SIT_BITMAP |
| 127 | }; |
| 128 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 129 | #define CP_UMOUNT 0x00000001 |
| 130 | #define CP_FASTBOOT 0x00000002 |
| 131 | #define CP_SYNC 0x00000004 |
| 132 | #define CP_RECOVERY 0x00000008 |
| 133 | #define CP_DISCARD 0x00000010 |
| 134 | #define CP_TRIMMED 0x00000020 |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 135 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 136 | #define DEF_BATCHED_TRIM_SECTIONS 2048 |
Jaegeuk Kim | bba681c | 2015-01-26 17:41:23 -0800 | [diff] [blame] | 137 | #define BATCHED_TRIM_SEGMENTS(sbi) \ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 138 | (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections)) |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 139 | #define BATCHED_TRIM_BLOCKS(sbi) \ |
| 140 | (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 141 | #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) |
| 142 | #define DISCARD_ISSUE_RATE 8 |
Jaegeuk Kim | 60b99b4 | 2015-10-05 14:49:57 -0700 | [diff] [blame] | 143 | #define DEF_CP_INTERVAL 60 /* 60 secs */ |
Chao Yu | dcf25fe | 2016-07-15 19:25:47 +0800 | [diff] [blame] | 144 | #define DEF_IDLE_INTERVAL 5 /* 5 secs */ |
Jaegeuk Kim | bba681c | 2015-01-26 17:41:23 -0800 | [diff] [blame] | 145 | |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 146 | struct cp_control { |
| 147 | int reason; |
Jaegeuk Kim | 4b2fecc | 2014-09-20 22:06:39 -0700 | [diff] [blame] | 148 | __u64 trim_start; |
| 149 | __u64 trim_end; |
| 150 | __u64 trim_minlen; |
| 151 | __u64 trimmed; |
Jaegeuk Kim | 75ab4cb | 2014-09-20 21:57:51 -0700 | [diff] [blame] | 152 | }; |
| 153 | |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 154 | /* |
Chao Yu | 81c1a0f1 | 2014-02-27 19:12:24 +0800 | [diff] [blame] | 155 | * For CP/NAT/SIT/SSA readahead |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 156 | */ |
| 157 | enum { |
| 158 | META_CP, |
| 159 | META_NAT, |
Chao Yu | 81c1a0f1 | 2014-02-27 19:12:24 +0800 | [diff] [blame] | 160 | META_SIT, |
Jaegeuk Kim | 4c521f49 | 2014-09-11 13:49:55 -0700 | [diff] [blame] | 161 | META_SSA, |
| 162 | META_POR, |
Chao Yu | 662befd | 2014-02-07 16:11:53 +0800 | [diff] [blame] | 163 | }; |
| 164 | |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 165 | /* for the list of ino */ |
| 166 | enum { |
| 167 | ORPHAN_INO, /* for orphan ino list */ |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 168 | APPEND_INO, /* for append ino list */ |
| 169 | UPDATE_INO, /* for update ino list */ |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 170 | MAX_INO_ENTRY, /* max. list */ |
| 171 | }; |
| 172 | |
| 173 | struct ino_entry { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 174 | struct list_head list; /* list head */ |
| 175 | nid_t ino; /* inode number */ |
| 176 | }; |
| 177 | |
Chao Yu | 2710fd7 | 2015-12-15 13:30:45 +0800 | [diff] [blame] | 178 | /* for the list of inodes to be GCed */ |
Chao Yu | 0629207 | 2014-12-29 15:56:18 +0800 | [diff] [blame] | 179 | struct inode_entry { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 180 | struct list_head list; /* list head */ |
| 181 | struct inode *inode; /* vfs inode pointer */ |
| 182 | }; |
| 183 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 184 | /* for the bitmap indicate blocks to be discarded */ |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 185 | struct discard_entry { |
| 186 | struct list_head list; /* list head */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 187 | block_t start_blkaddr; /* start blockaddr of current segment */ |
| 188 | unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 189 | }; |
| 190 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 191 | /* max discard pend list number */ |
| 192 | #define MAX_PLIST_NUM 512 |
| 193 | #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ |
| 194 | (MAX_PLIST_NUM - 1) : (blk_num - 1)) |
| 195 | |
| 196 | enum { |
| 197 | D_PREP, |
| 198 | D_SUBMIT, |
| 199 | D_DONE, |
| 200 | }; |
| 201 | |
| 202 | struct discard_info { |
| 203 | block_t lstart; /* logical start address */ |
| 204 | block_t len; /* length */ |
| 205 | block_t start; /* actual start address in dev */ |
| 206 | }; |
| 207 | |
| 208 | struct discard_cmd { |
| 209 | struct rb_node rb_node; /* rb node located in rb-tree */ |
| 210 | union { |
| 211 | struct { |
| 212 | block_t lstart; /* logical start address */ |
| 213 | block_t len; /* length */ |
| 214 | block_t start; /* actual start address in dev */ |
| 215 | }; |
| 216 | struct discard_info di; /* discard info */ |
| 217 | |
| 218 | }; |
| 219 | struct list_head list; /* command list */ |
| 220 | struct completion wait; /* compleation */ |
| 221 | struct block_device *bdev; /* bdev */ |
| 222 | unsigned short ref; /* reference count */ |
| 223 | unsigned char state; /* state */ |
| 224 | int error; /* bio error */ |
| 225 | }; |
| 226 | |
| 227 | struct discard_cmd_control { |
| 228 | struct task_struct *f2fs_issue_discard; /* discard thread */ |
| 229 | struct list_head entry_list; /* 4KB discard entry list */ |
| 230 | struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ |
| 231 | struct list_head wait_list; /* store on-flushing entries */ |
| 232 | wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ |
| 233 | struct mutex cmd_lock; |
| 234 | unsigned int nr_discards; /* # of discards in the list */ |
| 235 | unsigned int max_discards; /* max. discards to be issued */ |
| 236 | unsigned int undiscard_blks; /* # of undiscard blocks */ |
| 237 | atomic_t issued_discard; /* # of issued discard */ |
| 238 | atomic_t issing_discard; /* # of issing discard */ |
| 239 | atomic_t discard_cmd_cnt; /* # of cached cmd count */ |
| 240 | struct rb_root root; /* root of discard rb-tree */ |
Chao Yu | 275b66b | 2016-08-29 23:58:34 +0800 | [diff] [blame] | 241 | }; |
| 242 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 243 | /* for the list of fsync inodes, used only during recovery */ |
| 244 | struct fsync_inode_entry { |
| 245 | struct list_head list; /* list head */ |
| 246 | struct inode *inode; /* vfs inode pointer */ |
Jaegeuk Kim | c52e1b1 | 2014-09-11 14:29:06 -0700 | [diff] [blame] | 247 | block_t blkaddr; /* block address locating the last fsync */ |
| 248 | block_t last_dentry; /* block address locating the last dentry */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 249 | }; |
| 250 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 251 | #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) |
| 252 | #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 253 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 254 | #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) |
| 255 | #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) |
| 256 | #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) |
| 257 | #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 258 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 259 | #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) |
| 260 | #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) |
Jaegeuk Kim | 309cc2b | 2014-09-22 11:40:48 -0700 | [diff] [blame] | 261 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 262 | static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 263 | { |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 264 | int before = nats_in_cursum(journal); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 265 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 266 | journal->n_nats = cpu_to_le16(before + i); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 267 | return before; |
| 268 | } |
| 269 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 270 | static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 271 | { |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 272 | int before = sits_in_cursum(journal); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 273 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 274 | journal->n_sits = cpu_to_le16(before + i); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 275 | return before; |
| 276 | } |
| 277 | |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 278 | static inline bool __has_cursum_space(struct f2fs_journal *journal, |
| 279 | int size, int type) |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 280 | { |
| 281 | if (type == NAT_JOURNAL) |
Chao Yu | dfc08a1 | 2016-02-14 18:50:40 +0800 | [diff] [blame] | 282 | return size <= MAX_NAT_JENTRIES(journal); |
| 283 | return size <= MAX_SIT_JENTRIES(journal); |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 284 | } |
| 285 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 286 | /* |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 287 | * ioctl commands |
| 288 | */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 289 | #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS |
| 290 | #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS |
Chao Yu | d49f3e8 | 2015-01-23 20:36:04 +0800 | [diff] [blame] | 291 | #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 292 | |
| 293 | #define F2FS_IOCTL_MAGIC 0xf5 |
| 294 | #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) |
| 295 | #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 296 | #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) |
Jaegeuk Kim | 1e84371 | 2014-12-09 06:08:59 -0800 | [diff] [blame] | 297 | #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) |
| 298 | #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 299 | #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32) |
Chao Yu | 456b88e | 2015-10-05 22:24:19 +0800 | [diff] [blame] | 300 | #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 301 | #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \ |
| 302 | struct f2fs_defragment) |
Jaegeuk Kim | 4dd6f97 | 2016-07-08 15:16:47 -0700 | [diff] [blame] | 303 | #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ |
| 304 | struct f2fs_move_range) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 305 | #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \ |
| 306 | struct f2fs_flush_device) |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 307 | |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 308 | #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY |
| 309 | #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY |
| 310 | #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT |
Jaegeuk Kim | f424f66 | 2015-04-20 15:19:06 -0700 | [diff] [blame] | 311 | |
Jaegeuk Kim | 1abff93 | 2015-01-08 19:15:53 -0800 | [diff] [blame] | 312 | /* |
| 313 | * should be same as XFS_IOC_GOINGDOWN. |
| 314 | * Flags for going down operation used by FS_IOC_GOINGDOWN |
| 315 | */ |
| 316 | #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ |
| 317 | #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ |
| 318 | #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ |
| 319 | #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ |
Jaegeuk Kim | c912a82 | 2015-10-07 09:46:37 -0700 | [diff] [blame] | 320 | #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ |
Jaegeuk Kim | 1abff93 | 2015-01-08 19:15:53 -0800 | [diff] [blame] | 321 | |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 322 | #if defined(__KERNEL__) && defined(CONFIG_COMPAT) |
| 323 | /* |
| 324 | * ioctl commands in 32 bit emulation |
| 325 | */ |
Chao Yu | 04ef4b6 | 2015-11-10 18:44:20 +0800 | [diff] [blame] | 326 | #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS |
| 327 | #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS |
| 328 | #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 329 | #endif |
| 330 | |
Chao Yu | d323d00 | 2015-10-27 09:53:45 +0800 | [diff] [blame] | 331 | struct f2fs_defragment { |
| 332 | u64 start; |
| 333 | u64 len; |
| 334 | }; |
| 335 | |
Jaegeuk Kim | 4dd6f97 | 2016-07-08 15:16:47 -0700 | [diff] [blame] | 336 | struct f2fs_move_range { |
| 337 | u32 dst_fd; /* destination fd */ |
| 338 | u64 pos_in; /* start position in src_fd */ |
| 339 | u64 pos_out; /* start position in dst_fd */ |
| 340 | u64 len; /* size to move */ |
| 341 | }; |
| 342 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 343 | struct f2fs_flush_device { |
| 344 | u32 dev_num; /* device number to flush */ |
| 345 | u32 segments; /* # of segments to flush */ |
| 346 | }; |
| 347 | |
Namjae Jeon | e975082 | 2013-02-04 23:41:41 +0900 | [diff] [blame] | 348 | /* |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 349 | * For INODE and NODE manager |
| 350 | */ |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 351 | /* for directory operations */ |
| 352 | struct f2fs_dentry_ptr { |
Jaegeuk Kim | d8c6822 | 2015-04-27 16:26:24 -0700 | [diff] [blame] | 353 | struct inode *inode; |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 354 | const void *bitmap; |
| 355 | struct f2fs_dir_entry *dentry; |
| 356 | __u8 (*filename)[F2FS_SLOT_LEN]; |
| 357 | int max; |
| 358 | }; |
| 359 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 360 | static inline void make_dentry_ptr_block(struct inode *inode, |
| 361 | struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 362 | { |
Jaegeuk Kim | d8c6822 | 2015-04-27 16:26:24 -0700 | [diff] [blame] | 363 | d->inode = inode; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 364 | d->max = NR_DENTRY_IN_BLOCK; |
| 365 | d->bitmap = &t->dentry_bitmap; |
| 366 | d->dentry = t->dentry; |
| 367 | d->filename = t->filename; |
| 368 | } |
Jaegeuk Kim | d8c6822 | 2015-04-27 16:26:24 -0700 | [diff] [blame] | 369 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 370 | static inline void make_dentry_ptr_inline(struct inode *inode, |
| 371 | struct f2fs_dentry_ptr *d, struct f2fs_inline_dentry *t) |
| 372 | { |
| 373 | d->inode = inode; |
| 374 | d->max = NR_INLINE_DENTRY; |
| 375 | d->bitmap = &t->dentry_bitmap; |
| 376 | d->dentry = t->dentry; |
| 377 | d->filename = t->filename; |
Jaegeuk Kim | 7b3cd7d | 2014-10-18 22:52:52 -0700 | [diff] [blame] | 378 | } |
| 379 | |
Jaegeuk Kim | dbe6a5f | 2013-08-09 08:14:06 +0900 | [diff] [blame] | 380 | /* |
| 381 | * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 |
| 382 | * as its node offset to distinguish from index node blocks. |
| 383 | * But some bits are used to mark the node block. |
| 384 | */ |
| 385 | #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ |
| 386 | >> OFFSET_BIT_SHIFT) |
Jaegeuk Kim | 266e97a | 2013-02-26 13:10:46 +0900 | [diff] [blame] | 387 | enum { |
| 388 | ALLOC_NODE, /* allocate a new node page if needed */ |
| 389 | LOOKUP_NODE, /* look up a node without readahead */ |
| 390 | LOOKUP_NODE_RA, /* |
| 391 | * look up a node with readahead called |
Chao Yu | 4f4124d | 2013-12-21 18:02:14 +0800 | [diff] [blame] | 392 | * by get_data_block. |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 393 | */ |
Jaegeuk Kim | 266e97a | 2013-02-26 13:10:46 +0900 | [diff] [blame] | 394 | }; |
| 395 | |
Jaegeuk Kim | a6db67f | 2015-08-10 15:01:12 -0700 | [diff] [blame] | 396 | #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 397 | |
Chao Yu | 817202d9 | 2014-04-28 17:59:43 +0800 | [diff] [blame] | 398 | #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ |
| 399 | |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 400 | /* vector size for gang look-up from extent cache that consists of radix tree */ |
| 401 | #define EXT_TREE_VEC_SIZE 64 |
| 402 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 403 | /* for in-memory extent cache entry */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 404 | #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ |
| 405 | |
| 406 | /* number of extent info in extent cache we try to shrink */ |
| 407 | #define EXTENT_CACHE_SHRINK_NUMBER 128 |
Jaegeuk Kim | c11abd1 | 2013-11-19 10:41:54 +0900 | [diff] [blame] | 408 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 409 | struct rb_entry { |
| 410 | struct rb_node rb_node; /* rb node located in rb-tree */ |
| 411 | unsigned int ofs; /* start offset of the entry */ |
| 412 | unsigned int len; /* length of the entry */ |
| 413 | }; |
| 414 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 415 | struct extent_info { |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 416 | unsigned int fofs; /* start offset in a file */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 417 | unsigned int len; /* length of the extent */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 418 | u32 blk; /* start block address of the extent */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 419 | }; |
| 420 | |
| 421 | struct extent_node { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 422 | struct rb_node rb_node; |
| 423 | union { |
| 424 | struct { |
| 425 | unsigned int fofs; |
| 426 | unsigned int len; |
| 427 | u32 blk; |
| 428 | }; |
| 429 | struct extent_info ei; /* extent info */ |
| 430 | |
| 431 | }; |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 432 | struct list_head list; /* node in global extent list of sbi */ |
Hou Pengyang | 201ef5e | 2016-01-26 12:56:26 +0000 | [diff] [blame] | 433 | struct extent_tree *et; /* extent tree pointer */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 434 | }; |
| 435 | |
| 436 | struct extent_tree { |
| 437 | nid_t ino; /* inode number */ |
| 438 | struct rb_root root; /* root of extent info rb-tree */ |
Chao Yu | 62c8af6 | 2015-02-05 18:01:39 +0800 | [diff] [blame] | 439 | struct extent_node *cached_en; /* recently accessed extent node */ |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 440 | struct extent_info largest; /* largested extent info */ |
Jaegeuk Kim | 137d09f | 2015-12-31 15:02:16 -0800 | [diff] [blame] | 441 | struct list_head list; /* to be used by sbi->zombie_list */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 442 | rwlock_t lock; /* protect extent info rb-tree */ |
Chao Yu | 68e3538 | 2016-01-08 20:22:52 +0800 | [diff] [blame] | 443 | atomic_t node_cnt; /* # of extent node in rb-tree*/ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 444 | }; |
| 445 | |
| 446 | /* |
Jaegeuk Kim | 003a3e1 | 2015-04-06 19:55:34 -0700 | [diff] [blame] | 447 | * This structure is taken from ext4_map_blocks. |
| 448 | * |
| 449 | * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). |
| 450 | */ |
| 451 | #define F2FS_MAP_NEW (1 << BH_New) |
| 452 | #define F2FS_MAP_MAPPED (1 << BH_Mapped) |
Jaegeuk Kim | 7f63eb7 | 2015-05-08 19:30:32 -0700 | [diff] [blame] | 453 | #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) |
| 454 | #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ |
| 455 | F2FS_MAP_UNWRITTEN) |
Jaegeuk Kim | 003a3e1 | 2015-04-06 19:55:34 -0700 | [diff] [blame] | 456 | |
| 457 | struct f2fs_map_blocks { |
| 458 | block_t m_pblk; |
| 459 | block_t m_lblk; |
| 460 | unsigned int m_len; |
| 461 | unsigned int m_flags; |
Chao Yu | da85985 | 2016-01-26 15:42:58 +0800 | [diff] [blame] | 462 | pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ |
Jaegeuk Kim | 003a3e1 | 2015-04-06 19:55:34 -0700 | [diff] [blame] | 463 | }; |
| 464 | |
Chao Yu | e2b4e2b | 2015-08-19 19:11:19 +0800 | [diff] [blame] | 465 | /* for flag in get_data_block */ |
| 466 | #define F2FS_GET_BLOCK_READ 0 |
| 467 | #define F2FS_GET_BLOCK_DIO 1 |
| 468 | #define F2FS_GET_BLOCK_FIEMAP 2 |
| 469 | #define F2FS_GET_BLOCK_BMAP 3 |
Jaegeuk Kim | b439b10 | 2016-02-03 13:09:09 -0800 | [diff] [blame] | 470 | #define F2FS_GET_BLOCK_PRE_DIO 4 |
Jaegeuk Kim | 24b8491 | 2016-02-03 13:49:44 -0800 | [diff] [blame] | 471 | #define F2FS_GET_BLOCK_PRE_AIO 5 |
Chao Yu | e2b4e2b | 2015-08-19 19:11:19 +0800 | [diff] [blame] | 472 | |
Jaegeuk Kim | 003a3e1 | 2015-04-06 19:55:34 -0700 | [diff] [blame] | 473 | /* |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 474 | * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. |
| 475 | */ |
| 476 | #define FADVISE_COLD_BIT 0x01 |
Jaegeuk Kim | 354a339 | 2013-06-14 08:52:35 +0900 | [diff] [blame] | 477 | #define FADVISE_LOST_PINO_BIT 0x02 |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 478 | #define FADVISE_ENCRYPT_BIT 0x04 |
Jaegeuk Kim | e7d5545 | 2015-04-29 17:02:18 -0700 | [diff] [blame] | 479 | #define FADVISE_ENC_NAME_BIT 0x08 |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 480 | #define FADVISE_KEEP_SIZE_BIT 0x10 |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 481 | |
Jaegeuk Kim | b5492af7 | 2015-04-20 13:44:41 -0700 | [diff] [blame] | 482 | #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) |
| 483 | #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) |
| 484 | #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) |
| 485 | #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) |
| 486 | #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) |
| 487 | #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 488 | #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) |
| 489 | #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) |
| 490 | #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) |
Jaegeuk Kim | e7d5545 | 2015-04-29 17:02:18 -0700 | [diff] [blame] | 491 | #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) |
| 492 | #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 493 | #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) |
| 494 | #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 495 | |
Jaegeuk Kim | ab9fa66 | 2014-02-27 20:09:05 +0900 | [diff] [blame] | 496 | #define DEF_DIR_LEVEL 0 |
| 497 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 498 | struct f2fs_inode_info { |
| 499 | struct inode vfs_inode; /* serve a vfs inode */ |
| 500 | unsigned long i_flags; /* keep an inode flags for ioctl */ |
| 501 | unsigned char i_advise; /* use to give file attribute hints */ |
Jaegeuk Kim | 3843154 | 2014-02-27 18:20:00 +0900 | [diff] [blame] | 502 | unsigned char i_dir_level; /* use for dentry level for large dir */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 503 | unsigned int i_current_depth; /* use only in directory structure */ |
Jaegeuk Kim | 6666e6a | 2012-12-10 17:52:48 +0900 | [diff] [blame] | 504 | unsigned int i_pino; /* parent inode number */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 505 | umode_t i_acl_mode; /* keep file acl mode temporarily */ |
| 506 | |
| 507 | /* Use below internally in f2fs*/ |
| 508 | unsigned long flags; /* use to pass per-file flags */ |
Jaegeuk Kim | d928bfb | 2014-03-20 19:10:08 +0900 | [diff] [blame] | 509 | struct rw_semaphore i_sem; /* protect fi info */ |
Jaegeuk Kim | a43e1c4 | 2016-12-02 15:11:32 -0800 | [diff] [blame] | 510 | atomic_t dirty_pages; /* # of dirty pages */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 511 | f2fs_hash_t chash; /* hash value of given file name */ |
| 512 | unsigned int clevel; /* maximum level of given file name */ |
Jaegeuk Kim | d00d1b7 | 2017-02-14 09:54:37 -0800 | [diff] [blame] | 513 | struct task_struct *task; /* lookup and create consistency */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 514 | nid_t i_xattr_nid; /* node id that contains xattrs */ |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 515 | loff_t last_disk_size; /* lastly written file size */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 516 | |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 517 | struct list_head dirty_list; /* dirty list for dirs and files */ |
| 518 | struct list_head gdirty_list; /* linked in global dirty list */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 519 | struct list_head inmem_pages; /* inmemory pages managed by f2fs */ |
| 520 | struct mutex inmem_lock; /* lock for inmemory pages */ |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 521 | struct extent_tree *extent_tree; /* cached extent_tree entry */ |
Chao Yu | 82e0a5a | 2016-07-13 09:18:29 +0800 | [diff] [blame] | 522 | struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */ |
Qiuyang Sun | 7b23ea1 | 2017-05-18 11:06:45 +0800 | [diff] [blame] | 523 | struct rw_semaphore i_mmap_sem; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 524 | }; |
| 525 | |
| 526 | static inline void get_extent_info(struct extent_info *ext, |
Chao Yu | bd933d4 | 2016-05-04 23:19:47 +0800 | [diff] [blame] | 527 | struct f2fs_extent *i_ext) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 528 | { |
Chao Yu | bd933d4 | 2016-05-04 23:19:47 +0800 | [diff] [blame] | 529 | ext->fofs = le32_to_cpu(i_ext->fofs); |
| 530 | ext->blk = le32_to_cpu(i_ext->blk); |
| 531 | ext->len = le32_to_cpu(i_ext->len); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 532 | } |
| 533 | |
| 534 | static inline void set_raw_extent(struct extent_info *ext, |
| 535 | struct f2fs_extent *i_ext) |
| 536 | { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 537 | i_ext->fofs = cpu_to_le32(ext->fofs); |
Chao Yu | 4d0b0bd | 2015-02-05 17:47:25 +0800 | [diff] [blame] | 538 | i_ext->blk = cpu_to_le32(ext->blk); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 539 | i_ext->len = cpu_to_le32(ext->len); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 540 | } |
| 541 | |
Chao Yu | 429511c | 2015-02-05 17:54:31 +0800 | [diff] [blame] | 542 | static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, |
| 543 | u32 blk, unsigned int len) |
| 544 | { |
| 545 | ei->fofs = fofs; |
| 546 | ei->blk = blk; |
| 547 | ei->len = len; |
| 548 | } |
| 549 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 550 | static inline bool __is_discard_mergeable(struct discard_info *back, |
| 551 | struct discard_info *front) |
Chao Yu | 0bdee48 | 2015-03-19 19:27:51 +0800 | [diff] [blame] | 552 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 553 | return back->lstart + back->len == front->lstart; |
| 554 | } |
| 555 | |
| 556 | static inline bool __is_discard_back_mergeable(struct discard_info *cur, |
| 557 | struct discard_info *back) |
| 558 | { |
| 559 | return __is_discard_mergeable(back, cur); |
| 560 | } |
| 561 | |
| 562 | static inline bool __is_discard_front_mergeable(struct discard_info *cur, |
| 563 | struct discard_info *front) |
| 564 | { |
| 565 | return __is_discard_mergeable(cur, front); |
Chao Yu | 0bdee48 | 2015-03-19 19:27:51 +0800 | [diff] [blame] | 566 | } |
| 567 | |
Chao Yu | 429511c | 2015-02-05 17:54:31 +0800 | [diff] [blame] | 568 | static inline bool __is_extent_mergeable(struct extent_info *back, |
| 569 | struct extent_info *front) |
| 570 | { |
| 571 | return (back->fofs + back->len == front->fofs && |
| 572 | back->blk + back->len == front->blk); |
| 573 | } |
| 574 | |
| 575 | static inline bool __is_back_mergeable(struct extent_info *cur, |
| 576 | struct extent_info *back) |
| 577 | { |
| 578 | return __is_extent_mergeable(back, cur); |
| 579 | } |
| 580 | |
| 581 | static inline bool __is_front_mergeable(struct extent_info *cur, |
| 582 | struct extent_info *front) |
| 583 | { |
| 584 | return __is_extent_mergeable(cur, front); |
| 585 | } |
| 586 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 587 | extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 588 | static inline void __try_update_largest_extent(struct inode *inode, |
| 589 | struct extent_tree *et, struct extent_node *en) |
Chao Yu | 4abd3f5 | 2015-09-22 21:07:47 +0800 | [diff] [blame] | 590 | { |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 591 | if (en->ei.len > et->largest.len) { |
Chao Yu | 4abd3f5 | 2015-09-22 21:07:47 +0800 | [diff] [blame] | 592 | et->largest = en->ei; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 593 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 594 | } |
Chao Yu | 4abd3f5 | 2015-09-22 21:07:47 +0800 | [diff] [blame] | 595 | } |
| 596 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 597 | enum nid_list { |
| 598 | FREE_NID_LIST, |
| 599 | ALLOC_NID_LIST, |
| 600 | MAX_NID_LIST, |
| 601 | }; |
| 602 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 603 | struct f2fs_nm_info { |
| 604 | block_t nat_blkaddr; /* base disk address of NAT */ |
| 605 | nid_t max_nid; /* maximum possible node ids */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 606 | nid_t available_nids; /* # of available node ids */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 607 | nid_t next_scan_nid; /* the next nid to be scanned */ |
Jaegeuk Kim | cdfc41c | 2014-03-19 13:31:37 +0900 | [diff] [blame] | 608 | unsigned int ram_thresh; /* control the memory footprint */ |
Chao Yu | ea1a29a0 | 2015-10-12 17:08:48 +0800 | [diff] [blame] | 609 | unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ |
Chao Yu | 2304cb0 | 2016-01-18 18:32:58 +0800 | [diff] [blame] | 610 | unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 611 | |
| 612 | /* NAT cache management */ |
| 613 | struct radix_tree_root nat_root;/* root of the nat entry cache */ |
Jaegeuk Kim | 309cc2b | 2014-09-22 11:40:48 -0700 | [diff] [blame] | 614 | struct radix_tree_root nat_set_root;/* root of the nat set cache */ |
Jaegeuk Kim | b873b79 | 2016-08-04 11:38:25 -0700 | [diff] [blame] | 615 | struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 616 | struct list_head nat_entries; /* cached nat entry list (clean) */ |
Jaegeuk Kim | 309cc2b | 2014-09-22 11:40:48 -0700 | [diff] [blame] | 617 | unsigned int nat_cnt; /* the # of cached nat entries */ |
Chao Yu | aec7138 | 2014-06-24 09:18:20 +0800 | [diff] [blame] | 618 | unsigned int dirty_nat_cnt; /* total num of nat entries in set */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 619 | unsigned int nat_blocks; /* # of nat blocks */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 620 | |
| 621 | /* free node ids management */ |
Jaegeuk Kim | 8a7ed66 | 2014-02-21 14:29:35 +0900 | [diff] [blame] | 622 | struct radix_tree_root free_nid_root;/* root of the free_nid cache */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 623 | struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */ |
| 624 | unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */ |
| 625 | spinlock_t nid_list_lock; /* protect nid lists ops */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 626 | struct mutex build_lock; /* lock for build free nids */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 627 | unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE]; |
| 628 | unsigned char *nat_block_bitmap; |
| 629 | unsigned short *free_nid_count; /* free nid count of NAT block */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 630 | |
| 631 | /* for checkpoint */ |
| 632 | char *nat_bitmap; /* NAT bitmap pointer */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 633 | |
| 634 | unsigned int nat_bits_blocks; /* # of nat bits blocks */ |
| 635 | unsigned char *nat_bits; /* NAT bits blocks */ |
| 636 | unsigned char *full_nat_bits; /* full NAT pages */ |
| 637 | unsigned char *empty_nat_bits; /* empty NAT pages */ |
| 638 | #ifdef CONFIG_F2FS_CHECK_FS |
| 639 | char *nat_bitmap_mir; /* NAT bitmap mirror */ |
| 640 | #endif |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 641 | int bitmap_size; /* bitmap size */ |
| 642 | }; |
| 643 | |
| 644 | /* |
| 645 | * this structure is used as one of function parameters. |
| 646 | * all the information are dedicated to a given direct node block determined |
| 647 | * by the data offset in a file. |
| 648 | */ |
| 649 | struct dnode_of_data { |
| 650 | struct inode *inode; /* vfs inode pointer */ |
| 651 | struct page *inode_page; /* its inode page, NULL is possible */ |
| 652 | struct page *node_page; /* cached direct node page */ |
| 653 | nid_t nid; /* node id of the direct node block */ |
| 654 | unsigned int ofs_in_node; /* data offset in the node page */ |
| 655 | bool inode_page_locked; /* inode page is locked or not */ |
Jaegeuk Kim | 93bae09 | 2015-12-22 12:59:54 -0800 | [diff] [blame] | 656 | bool node_changed; /* is node block changed */ |
Chao Yu | 3cf4574 | 2016-01-26 15:40:44 +0800 | [diff] [blame] | 657 | char cur_level; /* level of hole node page */ |
| 658 | char max_level; /* level of current page located */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 659 | block_t data_blkaddr; /* block address of the node block */ |
| 660 | }; |
| 661 | |
| 662 | static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, |
| 663 | struct page *ipage, struct page *npage, nid_t nid) |
| 664 | { |
Jaegeuk Kim | d66d1f7 | 2013-01-03 08:57:21 +0900 | [diff] [blame] | 665 | memset(dn, 0, sizeof(*dn)); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 666 | dn->inode = inode; |
| 667 | dn->inode_page = ipage; |
| 668 | dn->node_page = npage; |
| 669 | dn->nid = nid; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 670 | } |
| 671 | |
| 672 | /* |
| 673 | * For SIT manager |
| 674 | * |
| 675 | * By default, there are 6 active log areas across the whole main area. |
| 676 | * When considering hot and cold data separation to reduce cleaning overhead, |
| 677 | * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, |
| 678 | * respectively. |
| 679 | * In the current design, you should not change the numbers intentionally. |
| 680 | * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 |
| 681 | * logs individually according to the underlying devices. (default: 6) |
| 682 | * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for |
| 683 | * data and 8 for node logs. |
| 684 | */ |
| 685 | #define NR_CURSEG_DATA_TYPE (3) |
| 686 | #define NR_CURSEG_NODE_TYPE (3) |
| 687 | #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) |
| 688 | |
| 689 | enum { |
| 690 | CURSEG_HOT_DATA = 0, /* directory entry blocks */ |
| 691 | CURSEG_WARM_DATA, /* data blocks */ |
| 692 | CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ |
| 693 | CURSEG_HOT_NODE, /* direct node blocks of directory files */ |
| 694 | CURSEG_WARM_NODE, /* direct node blocks of normal files */ |
| 695 | CURSEG_COLD_NODE, /* indirect node blocks */ |
Jaegeuk Kim | 38aa088 | 2015-01-05 16:02:20 -0800 | [diff] [blame] | 696 | NO_CHECK_TYPE, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 697 | }; |
| 698 | |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 699 | struct flush_cmd { |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 700 | struct completion wait; |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 701 | struct llist_node llnode; |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 702 | int ret; |
| 703 | }; |
| 704 | |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 705 | struct flush_cmd_control { |
| 706 | struct task_struct *f2fs_issue_flush; /* flush thread */ |
| 707 | wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 708 | atomic_t issued_flush; /* # of issued flushes */ |
| 709 | atomic_t issing_flush; /* # of issing flushes */ |
Gu Zheng | 721bd4d | 2014-09-05 18:31:00 +0800 | [diff] [blame] | 710 | struct llist_head issue_list; /* list for command issue */ |
| 711 | struct llist_node *dispatch_list; /* list for command dispatch */ |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 712 | }; |
| 713 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 714 | struct f2fs_sm_info { |
| 715 | struct sit_info *sit_info; /* whole segment information */ |
| 716 | struct free_segmap_info *free_info; /* free segment information */ |
| 717 | struct dirty_seglist_info *dirty_info; /* dirty segment information */ |
| 718 | struct curseg_info *curseg_array; /* active segment information */ |
| 719 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 720 | block_t seg0_blkaddr; /* block address of 0'th segment */ |
| 721 | block_t main_blkaddr; /* start block address of main area */ |
| 722 | block_t ssa_blkaddr; /* start block address of SSA area */ |
| 723 | |
| 724 | unsigned int segment_count; /* total # of segments */ |
| 725 | unsigned int main_segments; /* # of segments in main area */ |
| 726 | unsigned int reserved_segments; /* # of reserved segments */ |
| 727 | unsigned int ovp_segments; /* # of overprovision segments */ |
Jaegeuk Kim | 81eb8d6 | 2013-10-24 13:31:34 +0900 | [diff] [blame] | 728 | |
| 729 | /* a threshold to reclaim prefree segments */ |
| 730 | unsigned int rec_prefree_segments; |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 731 | |
Jaegeuk Kim | bba681c | 2015-01-26 17:41:23 -0800 | [diff] [blame] | 732 | /* for batched trimming */ |
| 733 | unsigned int trim_sections; /* # of sections to trim */ |
| 734 | |
Chao Yu | 184a5cd | 2014-09-04 18:13:01 +0800 | [diff] [blame] | 735 | struct list_head sit_entry_set; /* sit entry set list */ |
| 736 | |
Jaegeuk Kim | 216fbd6 | 2013-11-07 13:13:42 +0900 | [diff] [blame] | 737 | unsigned int ipu_policy; /* in-place-update policy */ |
| 738 | unsigned int min_ipu_util; /* in-place-update threshold */ |
Jaegeuk Kim | c1ce1b0 | 2014-09-10 16:53:02 -0700 | [diff] [blame] | 739 | unsigned int min_fsync_blocks; /* threshold for fsync */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 740 | unsigned int min_hot_blocks; /* threshold for hot block allocation */ |
Jaegeuk Kim | 6b4afdd | 2014-04-02 15:34:36 +0900 | [diff] [blame] | 741 | |
| 742 | /* for flush command control */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 743 | struct flush_cmd_control *fcc_info; |
Gu Zheng | a688b9d9e | 2014-04-27 14:21:21 +0800 | [diff] [blame] | 744 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 745 | /* for discard command control */ |
| 746 | struct discard_cmd_control *dcc_info; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 747 | }; |
| 748 | |
| 749 | /* |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 750 | * For superblock |
| 751 | */ |
| 752 | /* |
| 753 | * COUNT_TYPE for monitoring |
| 754 | * |
| 755 | * f2fs monitors the number of several block types such as on-writeback, |
| 756 | * dirty dentry blocks, dirty node blocks, and dirty meta blocks. |
| 757 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 758 | #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 759 | enum count_type { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 760 | F2FS_DIRTY_DENTS, |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 761 | F2FS_DIRTY_DATA, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 762 | F2FS_DIRTY_NODES, |
| 763 | F2FS_DIRTY_META, |
Jaegeuk Kim | 8dcf2ff7 | 2014-12-05 17:18:15 -0800 | [diff] [blame] | 764 | F2FS_INMEM_PAGES, |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 765 | F2FS_DIRTY_IMETA, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 766 | F2FS_WB_CP_DATA, |
| 767 | F2FS_WB_DATA, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 768 | NR_COUNT_TYPE, |
| 769 | }; |
| 770 | |
| 771 | /* |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 772 | * The below are the page types of bios used in submit_bio(). |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 773 | * The available types are: |
| 774 | * DATA User data pages. It operates as async mode. |
| 775 | * NODE Node pages. It operates as async mode. |
| 776 | * META FS metadata pages such as SIT, NAT, CP. |
| 777 | * NR_PAGE_TYPE The number of page types. |
| 778 | * META_FLUSH Make sure the previous pages are written |
| 779 | * with waiting the bio's completion |
| 780 | * ... Only can be used with META. |
| 781 | */ |
Jaegeuk Kim | 7d5e510 | 2013-11-18 17:13:35 +0900 | [diff] [blame] | 782 | #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 783 | enum page_type { |
| 784 | DATA, |
| 785 | NODE, |
| 786 | META, |
| 787 | NR_PAGE_TYPE, |
| 788 | META_FLUSH, |
Jaegeuk Kim | 8ce67cb | 2015-03-17 17:58:08 -0700 | [diff] [blame] | 789 | INMEM, /* the below types are used by tracepoints only. */ |
| 790 | INMEM_DROP, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 791 | INMEM_INVALIDATE, |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 792 | INMEM_REVOKE, |
Jaegeuk Kim | 8ce67cb | 2015-03-17 17:58:08 -0700 | [diff] [blame] | 793 | IPU, |
| 794 | OPU, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 795 | }; |
| 796 | |
Jaegeuk Kim | c412726 | 2017-05-10 11:18:25 -0700 | [diff] [blame] | 797 | enum temp_type { |
| 798 | HOT = 0, /* must be zero for meta bio */ |
| 799 | WARM, |
| 800 | COLD, |
| 801 | NR_TEMP_TYPE, |
| 802 | }; |
| 803 | |
Jaegeuk Kim | 1b48ed6 | 2017-05-12 13:51:34 -0700 | [diff] [blame] | 804 | enum need_lock_type { |
| 805 | LOCK_REQ = 0, |
| 806 | LOCK_DONE, |
| 807 | LOCK_RETRY, |
| 808 | }; |
| 809 | |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 810 | struct f2fs_io_info { |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 811 | struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ |
Gu Zheng | 7e8f230 | 2013-12-20 18:17:49 +0800 | [diff] [blame] | 812 | enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ |
Jaegeuk Kim | c412726 | 2017-05-10 11:18:25 -0700 | [diff] [blame] | 813 | enum temp_type temp; /* contains HOT/WARM/COLD */ |
Mike Christie | 04d328d | 2016-06-05 14:31:55 -0500 | [diff] [blame] | 814 | int op; /* contains REQ_OP_ */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 815 | int op_flags; /* req_flag_bits */ |
Chao Yu | 7a9d754 | 2016-02-22 18:36:38 +0800 | [diff] [blame] | 816 | block_t new_blkaddr; /* new block address to be written */ |
Chao Yu | 28bc106 | 2016-02-06 14:40:34 +0800 | [diff] [blame] | 817 | block_t old_blkaddr; /* old block address before Cow */ |
Jaegeuk Kim | 05ca363 | 2015-04-23 14:38:15 -0700 | [diff] [blame] | 818 | struct page *page; /* page to be written */ |
Jaegeuk Kim | 4375a33 | 2015-04-23 12:04:33 -0700 | [diff] [blame] | 819 | struct page *encrypted_page; /* encrypted page */ |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 820 | struct list_head list; /* serialize IOs */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 821 | bool submitted; /* indicate IO submission */ |
Jaegeuk Kim | 1b48ed6 | 2017-05-12 13:51:34 -0700 | [diff] [blame] | 822 | int need_lock; /* indicate we need to lock cp_rwsem */ |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 823 | bool in_list; /* indicate fio is in io_list */ |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 824 | }; |
| 825 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 826 | #define is_read_io(rw) ((rw) == READ) |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 827 | struct f2fs_bio_info { |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 828 | struct f2fs_sb_info *sbi; /* f2fs superblock */ |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 829 | struct bio *bio; /* bios to merge */ |
| 830 | sector_t last_block_in_bio; /* last block number */ |
Jaegeuk Kim | 458e619 | 2013-12-11 13:54:01 +0900 | [diff] [blame] | 831 | struct f2fs_io_info fio; /* store buffered io info. */ |
Chao Yu | df0f8dc | 2014-03-22 14:57:23 +0800 | [diff] [blame] | 832 | struct rw_semaphore io_rwsem; /* blocking op for bio */ |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 833 | spinlock_t io_lock; /* serialize DATA/NODE IOs */ |
| 834 | struct list_head io_list; /* track fios */ |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 835 | }; |
| 836 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 837 | #define FDEV(i) (sbi->devs[i]) |
| 838 | #define RDEV(i) (raw_super->devs[i]) |
| 839 | struct f2fs_dev_info { |
| 840 | struct block_device *bdev; |
| 841 | char path[MAX_PATH_LEN]; |
| 842 | unsigned int total_segments; |
| 843 | block_t start_blk; |
| 844 | block_t end_blk; |
| 845 | #ifdef CONFIG_BLK_DEV_ZONED |
| 846 | unsigned int nr_blkz; /* Total number of zones */ |
| 847 | u8 *blkz_type; /* Array of zones type */ |
| 848 | #endif |
| 849 | }; |
| 850 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 851 | enum inode_type { |
| 852 | DIR_INODE, /* for dirty dir inode */ |
| 853 | FILE_INODE, /* for dirty regular/symlink inode */ |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 854 | DIRTY_META, /* for all dirtied inode metadata */ |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 855 | NR_INODE_TYPE, |
| 856 | }; |
| 857 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 858 | /* for inner inode cache management */ |
| 859 | struct inode_management { |
| 860 | struct radix_tree_root ino_root; /* ino entry array */ |
| 861 | spinlock_t ino_lock; /* for ino entry lock */ |
| 862 | struct list_head ino_list; /* inode list head */ |
| 863 | unsigned long ino_num; /* number of entries */ |
| 864 | }; |
| 865 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 866 | /* For s_flag in struct f2fs_sb_info */ |
| 867 | enum { |
| 868 | SBI_IS_DIRTY, /* dirty flag for checkpoint */ |
| 869 | SBI_IS_CLOSE, /* specify unmounting */ |
| 870 | SBI_NEED_FSCK, /* need fsck.f2fs to fix */ |
| 871 | SBI_POR_DOING, /* recovery is doing or not */ |
Jaegeuk Kim | df728b0 | 2016-03-23 17:05:27 -0700 | [diff] [blame] | 872 | SBI_NEED_SB_WRITE, /* need to recover superblock */ |
Jaegeuk Kim | bbf156f | 2016-08-29 18:23:45 -0700 | [diff] [blame] | 873 | SBI_NEED_CP, /* need to checkpoint */ |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 874 | }; |
| 875 | |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 876 | enum { |
| 877 | CP_TIME, |
Jaegeuk Kim | d0239e1 | 2016-01-08 16:57:48 -0800 | [diff] [blame] | 878 | REQ_TIME, |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 879 | MAX_TIME, |
| 880 | }; |
| 881 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 882 | struct f2fs_sb_info { |
| 883 | struct super_block *sb; /* pointer to VFS super block */ |
Jaegeuk Kim | 5e176d5 | 2013-06-28 12:47:01 +0900 | [diff] [blame] | 884 | struct proc_dir_entry *s_proc; /* proc entry */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 885 | struct f2fs_super_block *raw_super; /* raw super block pointer */ |
Chao Yu | e8240f6 | 2015-12-15 17:19:26 +0800 | [diff] [blame] | 886 | int valid_super_block; /* valid super block no */ |
Chao Yu | fadb2fb | 2016-09-20 10:29:47 +0800 | [diff] [blame] | 887 | unsigned long s_flag; /* flags for sbi */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 888 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 889 | #ifdef CONFIG_BLK_DEV_ZONED |
| 890 | unsigned int blocks_per_blkz; /* F2FS blocks per zone */ |
| 891 | unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ |
Jaegeuk Kim | b5a7aef | 2016-05-04 22:05:01 -0700 | [diff] [blame] | 892 | #endif |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 893 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 894 | /* for node-related operations */ |
| 895 | struct f2fs_nm_info *nm_info; /* node manager */ |
| 896 | struct inode *node_inode; /* cache node blocks */ |
| 897 | |
| 898 | /* for segment-related operations */ |
| 899 | struct f2fs_sm_info *sm_info; /* segment manager */ |
Jaegeuk Kim | 1ff7bd3 | 2013-11-19 12:47:22 +0900 | [diff] [blame] | 900 | |
| 901 | /* for bio operations */ |
Jaegeuk Kim | c412726 | 2017-05-10 11:18:25 -0700 | [diff] [blame] | 902 | struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ |
Chao Yu | 0650468 | 2017-05-19 23:37:00 +0800 | [diff] [blame] | 903 | struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE]; |
| 904 | /* bio ordering for NODE/DATA */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 905 | int write_io_size_bits; /* Write IO size bits */ |
| 906 | mempool_t *write_io_dummy; /* Dummy pages */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 907 | |
| 908 | /* for checkpoint */ |
| 909 | struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ |
Jaegeuk Kim | 01e15b3 | 2016-11-24 12:45:15 -0800 | [diff] [blame] | 910 | int cur_cp_pack; /* remain current cp pack */ |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 911 | spinlock_t cp_lock; /* for flag in ckpt */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 912 | struct inode *meta_inode; /* cache meta blocks */ |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 913 | struct mutex cp_mutex; /* checkpoint procedure lock */ |
Jaegeuk Kim | b873b79 | 2016-08-04 11:38:25 -0700 | [diff] [blame] | 914 | struct rw_semaphore cp_rwsem; /* blocking FS operations */ |
Chao Yu | b3582c6 | 2014-07-03 18:58:39 +0800 | [diff] [blame] | 915 | struct rw_semaphore node_write; /* locking node writes */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 916 | struct rw_semaphore node_change; /* locking node change */ |
Changman Lee | fb51b5e | 2013-11-07 12:48:25 +0900 | [diff] [blame] | 917 | wait_queue_head_t cp_wait; |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 918 | unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ |
| 919 | long interval_time[MAX_TIME]; /* to store thresholds */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 920 | |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 921 | struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ |
Jaegeuk Kim | 6451e04 | 2014-07-25 15:47:17 -0700 | [diff] [blame] | 922 | |
| 923 | /* for orphan inode, use 0'th array */ |
Gu Zheng | 0d47c1a | 2013-12-26 18:24:19 +0800 | [diff] [blame] | 924 | unsigned int max_orphans; /* max orphan inodes */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 925 | |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 926 | /* for inode management */ |
| 927 | struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ |
| 928 | spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 929 | |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 930 | /* for extent tree cache */ |
| 931 | struct radix_tree_root extent_tree_root;/* cache extent cache entries */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 932 | struct mutex extent_tree_lock; /* locking extent radix tree */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 933 | struct list_head extent_list; /* lru list for shrinker */ |
| 934 | spinlock_t extent_lock; /* locking extent lru list */ |
Jaegeuk Kim | 7441cce | 2015-12-21 19:20:15 -0800 | [diff] [blame] | 935 | atomic_t total_ext_tree; /* extent tree count */ |
Jaegeuk Kim | 137d09f | 2015-12-31 15:02:16 -0800 | [diff] [blame] | 936 | struct list_head zombie_list; /* extent zombie tree list */ |
Jaegeuk Kim | 74fd8d9 | 2015-12-21 19:25:50 -0800 | [diff] [blame] | 937 | atomic_t total_zombie_tree; /* extent zombie tree count */ |
Chao Yu | 13054c5 | 2015-02-05 17:52:58 +0800 | [diff] [blame] | 938 | atomic_t total_ext_node; /* extent info count */ |
| 939 | |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 940 | /* basic filesystem units */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 941 | unsigned int log_sectors_per_block; /* log2 sectors per block */ |
| 942 | unsigned int log_blocksize; /* log2 block size */ |
| 943 | unsigned int blocksize; /* block size */ |
| 944 | unsigned int root_ino_num; /* root inode number*/ |
| 945 | unsigned int node_ino_num; /* node inode number*/ |
| 946 | unsigned int meta_ino_num; /* meta inode number*/ |
| 947 | unsigned int log_blocks_per_seg; /* log2 blocks per segment */ |
| 948 | unsigned int blocks_per_seg; /* blocks per segment */ |
| 949 | unsigned int segs_per_sec; /* segments per section */ |
| 950 | unsigned int secs_per_zone; /* sections per zone */ |
| 951 | unsigned int total_sections; /* total section count */ |
| 952 | unsigned int total_node_count; /* total node block count */ |
| 953 | unsigned int total_valid_node_count; /* valid node block count */ |
Chao Yu | e0afc4d | 2015-12-31 14:35:37 +0800 | [diff] [blame] | 954 | loff_t max_file_blocks; /* max block index of file */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 955 | int active_logs; /* # of active logs */ |
Jaegeuk Kim | ab9fa66 | 2014-02-27 20:09:05 +0900 | [diff] [blame] | 956 | int dir_level; /* directory level */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 957 | |
| 958 | block_t user_block_count; /* # of user blocks */ |
| 959 | block_t total_valid_block_count; /* # of valid blocks */ |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 960 | block_t discard_blks; /* discard command candidats */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 961 | block_t last_valid_block_count; /* for recovery */ |
| 962 | u32 s_next_generation; /* for NFS support */ |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 963 | |
| 964 | /* # of pages, see count_type */ |
Jaegeuk Kim | 725ba1a | 2016-10-20 19:09:57 -0700 | [diff] [blame] | 965 | atomic_t nr_pages[NR_COUNT_TYPE]; |
Jaegeuk Kim | 41382ec | 2016-05-16 11:06:50 -0700 | [diff] [blame] | 966 | /* # of allocated blocks */ |
| 967 | struct percpu_counter alloc_valid_block_count; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 968 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 969 | /* writeback control */ |
| 970 | atomic_t wb_sync_req; /* count # of WB_SYNC threads */ |
| 971 | |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 972 | /* valid inode count */ |
| 973 | struct percpu_counter total_valid_inode_count; |
| 974 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 975 | struct f2fs_mount_info mount_opt; /* mount options */ |
| 976 | |
| 977 | /* for cleaning operations */ |
| 978 | struct mutex gc_mutex; /* mutex for GC */ |
| 979 | struct f2fs_gc_kthread *gc_thread; /* GC thread */ |
Jaegeuk Kim | 5ec4e49 | 2013-03-31 13:26:03 +0900 | [diff] [blame] | 980 | unsigned int cur_victim_sec; /* current victim section num */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 981 | |
Hou Pengyang | 4992ba2 | 2017-02-16 12:34:31 +0000 | [diff] [blame] | 982 | /* threshold for converting bg victims for fg */ |
| 983 | u64 fggc_threshold; |
| 984 | |
Jaegeuk Kim | b1c57c1 | 2014-01-08 13:45:08 +0900 | [diff] [blame] | 985 | /* maximum # of trials to find a victim segment for SSR and GC */ |
| 986 | unsigned int max_victim_search; |
| 987 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 988 | /* |
| 989 | * for stat information. |
| 990 | * one is for the LFS mode, and the other is for the SSR mode. |
| 991 | */ |
Namjae Jeon | 35b09d8 | 2013-05-23 22:57:53 +0900 | [diff] [blame] | 992 | #ifdef CONFIG_F2FS_STAT_FS |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 993 | struct f2fs_stat_info *stat_info; /* FS status information */ |
| 994 | unsigned int segment_count[2]; /* # of allocated segments */ |
| 995 | unsigned int block_count[2]; /* # of allocated blocks */ |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 996 | atomic_t inplace_count; /* # of inplace update */ |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 997 | atomic64_t total_hit_ext; /* # of lookup extent cache */ |
| 998 | atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ |
| 999 | atomic64_t read_hit_largest; /* # of hit largest extent node */ |
| 1000 | atomic64_t read_hit_cached; /* # of hit cached extent node */ |
Chao Yu | d5e8f6c | 2015-07-15 17:28:53 +0800 | [diff] [blame] | 1001 | atomic_t inline_xattr; /* # of inline_xattr inodes */ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 1002 | atomic_t inline_inode; /* # of inline_data inodes */ |
| 1003 | atomic_t inline_dir; /* # of inline_dentry inodes */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1004 | atomic_t aw_cnt; /* # of atomic writes */ |
| 1005 | atomic_t vw_cnt; /* # of volatile writes */ |
| 1006 | atomic_t max_aw_cnt; /* max # of atomic writes */ |
| 1007 | atomic_t max_vw_cnt; /* max # of volatile writes */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1008 | int bg_gc; /* background gc calls */ |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 1009 | unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ |
Namjae Jeon | 35b09d8 | 2013-05-23 22:57:53 +0900 | [diff] [blame] | 1010 | #endif |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1011 | spinlock_t stat_lock; /* lock for stat operations */ |
Namjae Jeon | b59d0ba | 2013-08-04 23:09:40 +0900 | [diff] [blame] | 1012 | |
| 1013 | /* For sysfs suppport */ |
| 1014 | struct kobject s_kobj; |
| 1015 | struct completion s_kobj_unregister; |
Jaegeuk Kim | 2658e50 | 2015-06-19 12:01:21 -0700 | [diff] [blame] | 1016 | |
| 1017 | /* For shrinker support */ |
| 1018 | struct list_head s_list; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1019 | int s_ndevs; /* number of devices */ |
| 1020 | struct f2fs_dev_info *devs; /* for device list */ |
Jaegeuk Kim | 2658e50 | 2015-06-19 12:01:21 -0700 | [diff] [blame] | 1021 | struct mutex umount_mutex; |
| 1022 | unsigned int shrinker_run_no; |
Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 1023 | |
| 1024 | /* For write statistics */ |
| 1025 | u64 sectors_written_start; |
| 1026 | u64 kbytes_written; |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 1027 | |
| 1028 | /* Reference to checksum algorithm driver via cryptoapi */ |
| 1029 | struct crypto_shash *s_chksum_driver; |
Chao Yu | 1ecc0c5 | 2016-09-23 21:30:09 +0800 | [diff] [blame] | 1030 | |
| 1031 | /* For fault injection */ |
| 1032 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
| 1033 | struct f2fs_fault_info fault_info; |
| 1034 | #endif |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1035 | }; |
| 1036 | |
Chao Yu | 1ecc0c5 | 2016-09-23 21:30:09 +0800 | [diff] [blame] | 1037 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1038 | #define f2fs_show_injection_info(type) \ |
| 1039 | printk("%sF2FS-fs : inject %s in %s of %pF\n", \ |
| 1040 | KERN_INFO, fault_name[type], \ |
| 1041 | __func__, __builtin_return_address(0)) |
Chao Yu | 1ecc0c5 | 2016-09-23 21:30:09 +0800 | [diff] [blame] | 1042 | static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) |
| 1043 | { |
| 1044 | struct f2fs_fault_info *ffi = &sbi->fault_info; |
| 1045 | |
| 1046 | if (!ffi->inject_rate) |
| 1047 | return false; |
| 1048 | |
| 1049 | if (!IS_FAULT_SET(ffi, type)) |
| 1050 | return false; |
| 1051 | |
| 1052 | atomic_inc(&ffi->inject_ops); |
| 1053 | if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { |
| 1054 | atomic_set(&ffi->inject_ops, 0); |
Chao Yu | 1ecc0c5 | 2016-09-23 21:30:09 +0800 | [diff] [blame] | 1055 | return true; |
| 1056 | } |
| 1057 | return false; |
| 1058 | } |
| 1059 | #endif |
| 1060 | |
Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 1061 | /* For write statistics. Suppose sector size is 512 bytes, |
| 1062 | * and the return value is in kbytes. s is of struct f2fs_sb_info. |
| 1063 | */ |
| 1064 | #define BD_PART_WRITTEN(s) \ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1065 | (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \ |
| 1066 | (s)->sectors_written_start) >> 1) |
Shuoran Liu | 8f1dbbb | 2016-01-27 09:57:30 +0800 | [diff] [blame] | 1067 | |
Jaegeuk Kim | 6beceb5 | 2016-01-08 15:51:50 -0800 | [diff] [blame] | 1068 | static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) |
| 1069 | { |
| 1070 | sbi->last_time[type] = jiffies; |
| 1071 | } |
| 1072 | |
| 1073 | static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) |
| 1074 | { |
| 1075 | struct timespec ts = {sbi->interval_time[type], 0}; |
| 1076 | unsigned long interval = timespec_to_jiffies(&ts); |
| 1077 | |
| 1078 | return time_after(jiffies, sbi->last_time[type] + interval); |
| 1079 | } |
| 1080 | |
Jaegeuk Kim | d0239e1 | 2016-01-08 16:57:48 -0800 | [diff] [blame] | 1081 | static inline bool is_idle(struct f2fs_sb_info *sbi) |
| 1082 | { |
| 1083 | struct block_device *bdev = sbi->sb->s_bdev; |
| 1084 | struct request_queue *q = bdev_get_queue(bdev); |
| 1085 | struct request_list *rl = &q->root_rl; |
| 1086 | |
| 1087 | if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC]) |
| 1088 | return 0; |
| 1089 | |
| 1090 | return f2fs_time_over(sbi, REQ_TIME); |
| 1091 | } |
| 1092 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1093 | /* |
| 1094 | * Inline functions |
| 1095 | */ |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 1096 | static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, |
| 1097 | unsigned int length) |
| 1098 | { |
| 1099 | SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver); |
| 1100 | u32 *ctx = (u32 *)shash_desc_ctx(shash); |
David Miller | b355b89 | 2017-06-02 11:28:54 -0400 | [diff] [blame] | 1101 | u32 retval; |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 1102 | int err; |
| 1103 | |
| 1104 | shash->tfm = sbi->s_chksum_driver; |
| 1105 | shash->flags = 0; |
| 1106 | *ctx = F2FS_SUPER_MAGIC; |
| 1107 | |
| 1108 | err = crypto_shash_update(shash, address, length); |
| 1109 | BUG_ON(err); |
| 1110 | |
David Miller | b355b89 | 2017-06-02 11:28:54 -0400 | [diff] [blame] | 1111 | retval = *ctx; |
| 1112 | barrier_data(ctx); |
| 1113 | return retval; |
Keith Mok | 43b6573 | 2016-03-02 12:04:24 -0800 | [diff] [blame] | 1114 | } |
| 1115 | |
| 1116 | static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, |
| 1117 | void *buf, size_t buf_size) |
| 1118 | { |
| 1119 | return f2fs_crc32(sbi, buf, buf_size) == blk_crc; |
| 1120 | } |
| 1121 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1122 | static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) |
| 1123 | { |
| 1124 | return container_of(inode, struct f2fs_inode_info, vfs_inode); |
| 1125 | } |
| 1126 | |
| 1127 | static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) |
| 1128 | { |
| 1129 | return sb->s_fs_info; |
| 1130 | } |
| 1131 | |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 1132 | static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) |
| 1133 | { |
| 1134 | return F2FS_SB(inode->i_sb); |
| 1135 | } |
| 1136 | |
| 1137 | static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) |
| 1138 | { |
| 1139 | return F2FS_I_SB(mapping->host); |
| 1140 | } |
| 1141 | |
| 1142 | static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) |
| 1143 | { |
| 1144 | return F2FS_M_SB(page->mapping); |
| 1145 | } |
| 1146 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1147 | static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) |
| 1148 | { |
| 1149 | return (struct f2fs_super_block *)(sbi->raw_super); |
| 1150 | } |
| 1151 | |
| 1152 | static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) |
| 1153 | { |
| 1154 | return (struct f2fs_checkpoint *)(sbi->ckpt); |
| 1155 | } |
| 1156 | |
Gu Zheng | 4559071 | 2013-07-15 17:57:38 +0800 | [diff] [blame] | 1157 | static inline struct f2fs_node *F2FS_NODE(struct page *page) |
| 1158 | { |
| 1159 | return (struct f2fs_node *)page_address(page); |
| 1160 | } |
| 1161 | |
Jaegeuk Kim | 58bfaf4 | 2013-12-26 16:30:41 +0900 | [diff] [blame] | 1162 | static inline struct f2fs_inode *F2FS_INODE(struct page *page) |
| 1163 | { |
| 1164 | return &((struct f2fs_node *)page_address(page))->i; |
| 1165 | } |
| 1166 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1167 | static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) |
| 1168 | { |
| 1169 | return (struct f2fs_nm_info *)(sbi->nm_info); |
| 1170 | } |
| 1171 | |
| 1172 | static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) |
| 1173 | { |
| 1174 | return (struct f2fs_sm_info *)(sbi->sm_info); |
| 1175 | } |
| 1176 | |
| 1177 | static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) |
| 1178 | { |
| 1179 | return (struct sit_info *)(SM_I(sbi)->sit_info); |
| 1180 | } |
| 1181 | |
| 1182 | static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) |
| 1183 | { |
| 1184 | return (struct free_segmap_info *)(SM_I(sbi)->free_info); |
| 1185 | } |
| 1186 | |
| 1187 | static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) |
| 1188 | { |
| 1189 | return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); |
| 1190 | } |
| 1191 | |
Gu Zheng | 9df27d9 | 2014-01-20 18:37:04 +0800 | [diff] [blame] | 1192 | static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) |
| 1193 | { |
| 1194 | return sbi->meta_inode->i_mapping; |
| 1195 | } |
| 1196 | |
Jaegeuk Kim | 4ef51a8 | 2014-01-21 18:51:16 +0900 | [diff] [blame] | 1197 | static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) |
| 1198 | { |
| 1199 | return sbi->node_inode->i_mapping; |
| 1200 | } |
| 1201 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1202 | static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1203 | { |
Chao Yu | fadb2fb | 2016-09-20 10:29:47 +0800 | [diff] [blame] | 1204 | return test_bit(type, &sbi->s_flag); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1205 | } |
| 1206 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1207 | static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1208 | { |
Chao Yu | fadb2fb | 2016-09-20 10:29:47 +0800 | [diff] [blame] | 1209 | set_bit(type, &sbi->s_flag); |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1210 | } |
| 1211 | |
| 1212 | static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) |
| 1213 | { |
Chao Yu | fadb2fb | 2016-09-20 10:29:47 +0800 | [diff] [blame] | 1214 | clear_bit(type, &sbi->s_flag); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1215 | } |
| 1216 | |
Jaegeuk Kim | d71b556 | 2013-08-09 15:03:21 +0900 | [diff] [blame] | 1217 | static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) |
| 1218 | { |
| 1219 | return le64_to_cpu(cp->checkpoint_ver); |
| 1220 | } |
| 1221 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1222 | static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) |
| 1223 | { |
| 1224 | size_t crc_offset = le32_to_cpu(cp->checksum_offset); |
| 1225 | return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); |
| 1226 | } |
| 1227 | |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1228 | static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1229 | { |
| 1230 | unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1231 | |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1232 | return ckpt_flags & f; |
| 1233 | } |
| 1234 | |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1235 | static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1236 | { |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1237 | return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); |
| 1238 | } |
| 1239 | |
| 1240 | static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
| 1241 | { |
| 1242 | unsigned int ckpt_flags; |
| 1243 | |
| 1244 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1245 | ckpt_flags |= f; |
| 1246 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); |
| 1247 | } |
| 1248 | |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1249 | static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1250 | { |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1251 | spin_lock(&sbi->cp_lock); |
| 1252 | __set_ckpt_flags(F2FS_CKPT(sbi), f); |
| 1253 | spin_unlock(&sbi->cp_lock); |
| 1254 | } |
| 1255 | |
| 1256 | static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) |
| 1257 | { |
| 1258 | unsigned int ckpt_flags; |
| 1259 | |
| 1260 | ckpt_flags = le32_to_cpu(cp->ckpt_flags); |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1261 | ckpt_flags &= (~f); |
| 1262 | cp->ckpt_flags = cpu_to_le32(ckpt_flags); |
| 1263 | } |
| 1264 | |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1265 | static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) |
| 1266 | { |
| 1267 | spin_lock(&sbi->cp_lock); |
| 1268 | __clear_ckpt_flags(F2FS_CKPT(sbi), f); |
| 1269 | spin_unlock(&sbi->cp_lock); |
| 1270 | } |
| 1271 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1272 | static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) |
Jaegeuk Kim | 3e02574 | 2016-08-02 10:56:40 -0700 | [diff] [blame] | 1273 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1274 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
Jaegeuk Kim | 3e02574 | 2016-08-02 10:56:40 -0700 | [diff] [blame] | 1275 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1276 | if (lock) |
| 1277 | spin_lock(&sbi->cp_lock); |
| 1278 | __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); |
| 1279 | kfree(NM_I(sbi)->nat_bits); |
| 1280 | NM_I(sbi)->nat_bits = NULL; |
| 1281 | if (lock) |
| 1282 | spin_unlock(&sbi->cp_lock); |
| 1283 | } |
| 1284 | |
| 1285 | static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, |
| 1286 | struct cp_control *cpc) |
| 1287 | { |
| 1288 | bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); |
| 1289 | |
| 1290 | return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; |
Jaegeuk Kim | 3e02574 | 2016-08-02 10:56:40 -0700 | [diff] [blame] | 1291 | } |
| 1292 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1293 | static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1294 | { |
Jaegeuk Kim | b873b79 | 2016-08-04 11:38:25 -0700 | [diff] [blame] | 1295 | down_read(&sbi->cp_rwsem); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1296 | } |
| 1297 | |
Jaegeuk Kim | 1b48ed6 | 2017-05-12 13:51:34 -0700 | [diff] [blame] | 1298 | static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) |
| 1299 | { |
| 1300 | return down_read_trylock(&sbi->cp_rwsem); |
| 1301 | } |
| 1302 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1303 | static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1304 | { |
Jaegeuk Kim | b873b79 | 2016-08-04 11:38:25 -0700 | [diff] [blame] | 1305 | up_read(&sbi->cp_rwsem); |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1306 | } |
| 1307 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1308 | static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1309 | { |
Jaegeuk Kim | b873b79 | 2016-08-04 11:38:25 -0700 | [diff] [blame] | 1310 | down_write(&sbi->cp_rwsem); |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1311 | } |
| 1312 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1313 | static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 1314 | { |
Jaegeuk Kim | b873b79 | 2016-08-04 11:38:25 -0700 | [diff] [blame] | 1315 | up_write(&sbi->cp_rwsem); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1316 | } |
| 1317 | |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 1318 | static inline int __get_cp_reason(struct f2fs_sb_info *sbi) |
| 1319 | { |
| 1320 | int reason = CP_SYNC; |
| 1321 | |
| 1322 | if (test_opt(sbi, FASTBOOT)) |
| 1323 | reason = CP_FASTBOOT; |
| 1324 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) |
| 1325 | reason = CP_UMOUNT; |
| 1326 | return reason; |
| 1327 | } |
| 1328 | |
| 1329 | static inline bool __remain_node_summaries(int reason) |
| 1330 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1331 | return (reason & (CP_UMOUNT | CP_FASTBOOT)); |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 1332 | } |
| 1333 | |
| 1334 | static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) |
| 1335 | { |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 1336 | return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || |
| 1337 | is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); |
Jaegeuk Kim | 119ee91 | 2015-01-29 11:45:33 -0800 | [diff] [blame] | 1338 | } |
| 1339 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1340 | /* |
| 1341 | * Check whether the given nid is within node id range. |
| 1342 | */ |
Namjae Jeon | 064e082 | 2013-03-17 17:27:20 +0900 | [diff] [blame] | 1343 | static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1344 | { |
Chao Yu | d6b7d4b | 2014-06-12 13:23:41 +0800 | [diff] [blame] | 1345 | if (unlikely(nid < F2FS_ROOT_INO(sbi))) |
| 1346 | return -EINVAL; |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 1347 | if (unlikely(nid >= NM_I(sbi)->max_nid)) |
Namjae Jeon | 064e082 | 2013-03-17 17:27:20 +0900 | [diff] [blame] | 1348 | return -EINVAL; |
| 1349 | return 0; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1350 | } |
| 1351 | |
| 1352 | #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1 |
| 1353 | |
| 1354 | /* |
| 1355 | * Check whether the inode has blocks or not |
| 1356 | */ |
| 1357 | static inline int F2FS_HAS_BLOCKS(struct inode *inode) |
| 1358 | { |
Chao Yu | 56a0d93 | 2017-06-14 23:00:56 +0800 | [diff] [blame^] | 1359 | block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; |
| 1360 | |
| 1361 | return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > |
| 1362 | (F2FS_DEFAULT_ALLOCATED_BLOCKS + xattr_block); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1363 | } |
| 1364 | |
Chao Yu | 4bc8e9b | 2014-03-17 16:35:06 +0800 | [diff] [blame] | 1365 | static inline bool f2fs_has_xattr_block(unsigned int ofs) |
| 1366 | { |
| 1367 | return ofs == XATTR_NODE_OFFSET; |
| 1368 | } |
| 1369 | |
Chao Yu | 56a0d93 | 2017-06-14 23:00:56 +0800 | [diff] [blame^] | 1370 | static inline void f2fs_i_blocks_write(struct inode *, block_t, bool); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1371 | static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, |
Chao Yu | 46008c6 | 2016-05-09 19:56:30 +0800 | [diff] [blame] | 1372 | struct inode *inode, blkcnt_t *count) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1373 | { |
Jaegeuk Kim | dd11a5d | 2016-07-19 19:20:11 -0700 | [diff] [blame] | 1374 | blkcnt_t diff; |
| 1375 | |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 1376 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1377 | if (time_to_inject(sbi, FAULT_BLOCK)) { |
| 1378 | f2fs_show_injection_info(FAULT_BLOCK); |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 1379 | return false; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1380 | } |
Jaegeuk Kim | cb78942 | 2016-04-29 16:29:22 -0700 | [diff] [blame] | 1381 | #endif |
Jaegeuk Kim | dd11a5d | 2016-07-19 19:20:11 -0700 | [diff] [blame] | 1382 | /* |
| 1383 | * let's increase this in prior to actual block count change in order |
| 1384 | * for f2fs_sync_file to avoid data races when deciding checkpoint. |
| 1385 | */ |
| 1386 | percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 1387 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1388 | spin_lock(&sbi->stat_lock); |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1389 | sbi->total_valid_block_count += (block_t)(*count); |
| 1390 | if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) { |
Jaegeuk Kim | dd11a5d | 2016-07-19 19:20:11 -0700 | [diff] [blame] | 1391 | diff = sbi->total_valid_block_count - sbi->user_block_count; |
| 1392 | *count -= diff; |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1393 | sbi->total_valid_block_count = sbi->user_block_count; |
Chao Yu | 46008c6 | 2016-05-09 19:56:30 +0800 | [diff] [blame] | 1394 | if (!*count) { |
| 1395 | spin_unlock(&sbi->stat_lock); |
Jaegeuk Kim | dd11a5d | 2016-07-19 19:20:11 -0700 | [diff] [blame] | 1396 | percpu_counter_sub(&sbi->alloc_valid_block_count, diff); |
Chao Yu | 46008c6 | 2016-05-09 19:56:30 +0800 | [diff] [blame] | 1397 | return false; |
| 1398 | } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1399 | } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1400 | spin_unlock(&sbi->stat_lock); |
Jaegeuk Kim | 41382ec | 2016-05-16 11:06:50 -0700 | [diff] [blame] | 1401 | |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1402 | f2fs_i_blocks_write(inode, *count, true); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1403 | return true; |
| 1404 | } |
| 1405 | |
Gu Zheng | da19b0d | 2013-11-19 18:03:27 +0800 | [diff] [blame] | 1406 | static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1407 | struct inode *inode, |
Chao Yu | 56a0d93 | 2017-06-14 23:00:56 +0800 | [diff] [blame^] | 1408 | block_t count) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1409 | { |
Chao Yu | 56a0d93 | 2017-06-14 23:00:56 +0800 | [diff] [blame^] | 1410 | blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; |
| 1411 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1412 | spin_lock(&sbi->stat_lock); |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 1413 | f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); |
Chao Yu | 56a0d93 | 2017-06-14 23:00:56 +0800 | [diff] [blame^] | 1414 | f2fs_bug_on(sbi, inode->i_blocks < sectors); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1415 | sbi->total_valid_block_count -= (block_t)count; |
| 1416 | spin_unlock(&sbi->stat_lock); |
Jaegeuk Kim | 2555a2d | 2016-06-30 19:02:06 -0700 | [diff] [blame] | 1417 | f2fs_i_blocks_write(inode, count, false); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1418 | } |
| 1419 | |
| 1420 | static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) |
| 1421 | { |
Jaegeuk Kim | 725ba1a | 2016-10-20 19:09:57 -0700 | [diff] [blame] | 1422 | atomic_inc(&sbi->nr_pages[count_type]); |
Chao Yu | 7c4abcb | 2016-08-18 17:46:14 +0800 | [diff] [blame] | 1423 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1424 | if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES || |
| 1425 | count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA) |
Chao Yu | 7c4abcb | 2016-08-18 17:46:14 +0800 | [diff] [blame] | 1426 | return; |
| 1427 | |
Chao Yu | caf0047 | 2015-01-28 17:48:42 +0800 | [diff] [blame] | 1428 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1429 | } |
| 1430 | |
Jaegeuk Kim | a7ffdbe | 2014-09-12 15:53:45 -0700 | [diff] [blame] | 1431 | static inline void inode_inc_dirty_pages(struct inode *inode) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1432 | { |
Jaegeuk Kim | a43e1c4 | 2016-12-02 15:11:32 -0800 | [diff] [blame] | 1433 | atomic_inc(&F2FS_I(inode)->dirty_pages); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 1434 | inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
| 1435 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1436 | } |
| 1437 | |
| 1438 | static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) |
| 1439 | { |
Jaegeuk Kim | 725ba1a | 2016-10-20 19:09:57 -0700 | [diff] [blame] | 1440 | atomic_dec(&sbi->nr_pages[count_type]); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1441 | } |
| 1442 | |
Jaegeuk Kim | a7ffdbe | 2014-09-12 15:53:45 -0700 | [diff] [blame] | 1443 | static inline void inode_dec_dirty_pages(struct inode *inode) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1444 | { |
Chao Yu | 5ac9f36 | 2015-06-29 18:14:10 +0800 | [diff] [blame] | 1445 | if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && |
| 1446 | !S_ISLNK(inode->i_mode)) |
Jaegeuk Kim | 1fe54f9 | 2014-02-07 10:00:06 +0900 | [diff] [blame] | 1447 | return; |
| 1448 | |
Jaegeuk Kim | a43e1c4 | 2016-12-02 15:11:32 -0800 | [diff] [blame] | 1449 | atomic_dec(&F2FS_I(inode)->dirty_pages); |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 1450 | dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? |
| 1451 | F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1452 | } |
| 1453 | |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 1454 | static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1455 | { |
Jaegeuk Kim | 725ba1a | 2016-10-20 19:09:57 -0700 | [diff] [blame] | 1456 | return atomic_read(&sbi->nr_pages[count_type]); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1457 | } |
| 1458 | |
Jaegeuk Kim | a43e1c4 | 2016-12-02 15:11:32 -0800 | [diff] [blame] | 1459 | static inline int get_dirty_pages(struct inode *inode) |
Jaegeuk Kim | f8b2c1f | 2014-03-18 12:33:06 +0900 | [diff] [blame] | 1460 | { |
Jaegeuk Kim | a43e1c4 | 2016-12-02 15:11:32 -0800 | [diff] [blame] | 1461 | return atomic_read(&F2FS_I(inode)->dirty_pages); |
Jaegeuk Kim | f8b2c1f | 2014-03-18 12:33:06 +0900 | [diff] [blame] | 1462 | } |
| 1463 | |
Namjae Jeon | 5ac206c | 2013-02-02 23:52:59 +0900 | [diff] [blame] | 1464 | static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) |
| 1465 | { |
Chao Yu | 3519e3f | 2015-12-01 11:56:52 +0800 | [diff] [blame] | 1466 | unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 1467 | unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> |
| 1468 | sbi->log_blocks_per_seg; |
| 1469 | |
| 1470 | return segs / sbi->segs_per_sec; |
Namjae Jeon | 5ac206c | 2013-02-02 23:52:59 +0900 | [diff] [blame] | 1471 | } |
| 1472 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1473 | static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) |
| 1474 | { |
Jaegeuk Kim | 8b8343f | 2014-02-24 13:00:13 +0900 | [diff] [blame] | 1475 | return sbi->total_valid_block_count; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1476 | } |
| 1477 | |
Yunlei He | f83a258 | 2016-08-18 21:01:18 +0800 | [diff] [blame] | 1478 | static inline block_t discard_blocks(struct f2fs_sb_info *sbi) |
| 1479 | { |
| 1480 | return sbi->discard_blks; |
| 1481 | } |
| 1482 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1483 | static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) |
| 1484 | { |
| 1485 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
| 1486 | |
| 1487 | /* return NAT or SIT bitmap */ |
| 1488 | if (flag == NAT_BITMAP) |
| 1489 | return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); |
| 1490 | else if (flag == SIT_BITMAP) |
| 1491 | return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); |
| 1492 | |
| 1493 | return 0; |
| 1494 | } |
| 1495 | |
Wanpeng Li | 5514148 | 2015-02-26 07:57:20 +0800 | [diff] [blame] | 1496 | static inline block_t __cp_payload(struct f2fs_sb_info *sbi) |
| 1497 | { |
| 1498 | return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); |
| 1499 | } |
| 1500 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1501 | static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) |
| 1502 | { |
| 1503 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1504 | int offset; |
| 1505 | |
Wanpeng Li | 5514148 | 2015-02-26 07:57:20 +0800 | [diff] [blame] | 1506 | if (__cp_payload(sbi) > 0) { |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1507 | if (flag == NAT_BITMAP) |
| 1508 | return &ckpt->sit_nat_version_bitmap; |
| 1509 | else |
Jaegeuk Kim | 65b85cc | 2014-07-30 17:25:54 -0700 | [diff] [blame] | 1510 | return (unsigned char *)ckpt + F2FS_BLKSIZE; |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1511 | } else { |
| 1512 | offset = (flag == NAT_BITMAP) ? |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 1513 | le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; |
Changman Lee | 1dbe415 | 2014-05-12 12:27:43 +0900 | [diff] [blame] | 1514 | return &ckpt->sit_nat_version_bitmap + offset; |
| 1515 | } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1516 | } |
| 1517 | |
| 1518 | static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) |
| 1519 | { |
Jaegeuk Kim | 01e15b3 | 2016-11-24 12:45:15 -0800 | [diff] [blame] | 1520 | block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1521 | |
Jaegeuk Kim | 01e15b3 | 2016-11-24 12:45:15 -0800 | [diff] [blame] | 1522 | if (sbi->cur_cp_pack == 2) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1523 | start_addr += sbi->blocks_per_seg; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1524 | return start_addr; |
| 1525 | } |
| 1526 | |
Jaegeuk Kim | 01e15b3 | 2016-11-24 12:45:15 -0800 | [diff] [blame] | 1527 | static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) |
| 1528 | { |
| 1529 | block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); |
| 1530 | |
| 1531 | if (sbi->cur_cp_pack == 1) |
| 1532 | start_addr += sbi->blocks_per_seg; |
| 1533 | return start_addr; |
| 1534 | } |
| 1535 | |
| 1536 | static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) |
| 1537 | { |
| 1538 | sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; |
| 1539 | } |
| 1540 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1541 | static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) |
| 1542 | { |
| 1543 | return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); |
| 1544 | } |
| 1545 | |
| 1546 | static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1547 | struct inode *inode) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1548 | { |
| 1549 | block_t valid_block_count; |
| 1550 | unsigned int valid_node_count; |
| 1551 | |
| 1552 | spin_lock(&sbi->stat_lock); |
| 1553 | |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1554 | valid_block_count = sbi->total_valid_block_count + 1; |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 1555 | if (unlikely(valid_block_count > sbi->user_block_count)) { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1556 | spin_unlock(&sbi->stat_lock); |
| 1557 | return false; |
| 1558 | } |
| 1559 | |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1560 | valid_node_count = sbi->total_valid_node_count + 1; |
Chao Yu | cfb271d | 2013-12-05 17:15:22 +0800 | [diff] [blame] | 1561 | if (unlikely(valid_node_count > sbi->total_node_count)) { |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1562 | spin_unlock(&sbi->stat_lock); |
| 1563 | return false; |
| 1564 | } |
| 1565 | |
| 1566 | if (inode) |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1567 | f2fs_i_blocks_write(inode, 1, true); |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1568 | |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1569 | sbi->total_valid_node_count++; |
| 1570 | sbi->total_valid_block_count++; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1571 | spin_unlock(&sbi->stat_lock); |
| 1572 | |
Jaegeuk Kim | 41382ec | 2016-05-16 11:06:50 -0700 | [diff] [blame] | 1573 | percpu_counter_inc(&sbi->alloc_valid_block_count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1574 | return true; |
| 1575 | } |
| 1576 | |
| 1577 | static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1578 | struct inode *inode) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1579 | { |
| 1580 | spin_lock(&sbi->stat_lock); |
| 1581 | |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 1582 | f2fs_bug_on(sbi, !sbi->total_valid_block_count); |
| 1583 | f2fs_bug_on(sbi, !sbi->total_valid_node_count); |
| 1584 | f2fs_bug_on(sbi, !inode->i_blocks); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1585 | |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1586 | f2fs_i_blocks_write(inode, 1, false); |
Gu Zheng | ef86d70 | 2013-11-19 18:03:38 +0800 | [diff] [blame] | 1587 | sbi->total_valid_node_count--; |
| 1588 | sbi->total_valid_block_count--; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1589 | |
| 1590 | spin_unlock(&sbi->stat_lock); |
| 1591 | } |
| 1592 | |
| 1593 | static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) |
| 1594 | { |
Jaegeuk Kim | 8b8343f | 2014-02-24 13:00:13 +0900 | [diff] [blame] | 1595 | return sbi->total_valid_node_count; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1596 | } |
| 1597 | |
| 1598 | static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) |
| 1599 | { |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 1600 | percpu_counter_inc(&sbi->total_valid_inode_count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1601 | } |
| 1602 | |
Jaegeuk Kim | 0e80220 | 2013-11-26 16:36:20 +0900 | [diff] [blame] | 1603 | static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1604 | { |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 1605 | percpu_counter_dec(&sbi->total_valid_inode_count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1606 | } |
| 1607 | |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 1608 | static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1609 | { |
Jaegeuk Kim | 513c5f3 | 2016-05-16 11:42:32 -0700 | [diff] [blame] | 1610 | return percpu_counter_sum_positive(&sbi->total_valid_inode_count); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1611 | } |
| 1612 | |
Jaegeuk Kim | a56c7c6 | 2015-10-09 15:11:38 -0700 | [diff] [blame] | 1613 | static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, |
| 1614 | pgoff_t index, bool for_write) |
| 1615 | { |
Jaegeuk Kim | c41f3cc3 | 2016-04-29 16:17:09 -0700 | [diff] [blame] | 1616 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
| 1617 | struct page *page = find_lock_page(mapping, index); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1618 | |
Jaegeuk Kim | c41f3cc3 | 2016-04-29 16:17:09 -0700 | [diff] [blame] | 1619 | if (page) |
| 1620 | return page; |
| 1621 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1622 | if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { |
| 1623 | f2fs_show_injection_info(FAULT_PAGE_ALLOC); |
Jaegeuk Kim | c41f3cc3 | 2016-04-29 16:17:09 -0700 | [diff] [blame] | 1624 | return NULL; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1625 | } |
Jaegeuk Kim | c41f3cc3 | 2016-04-29 16:17:09 -0700 | [diff] [blame] | 1626 | #endif |
Jaegeuk Kim | a56c7c6 | 2015-10-09 15:11:38 -0700 | [diff] [blame] | 1627 | if (!for_write) |
| 1628 | return grab_cache_page(mapping, index); |
| 1629 | return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); |
| 1630 | } |
| 1631 | |
Jaegeuk Kim | 6e2c64a | 2015-10-07 12:28:41 -0700 | [diff] [blame] | 1632 | static inline void f2fs_copy_page(struct page *src, struct page *dst) |
| 1633 | { |
| 1634 | char *src_kaddr = kmap(src); |
| 1635 | char *dst_kaddr = kmap(dst); |
| 1636 | |
| 1637 | memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); |
| 1638 | kunmap(dst); |
| 1639 | kunmap(src); |
| 1640 | } |
| 1641 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1642 | static inline void f2fs_put_page(struct page *page, int unlock) |
| 1643 | { |
Jaegeuk Kim | 031fa8c | 2013-11-28 12:55:13 +0900 | [diff] [blame] | 1644 | if (!page) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1645 | return; |
| 1646 | |
| 1647 | if (unlock) { |
Jaegeuk Kim | 9850cf4 | 2014-09-02 15:52:58 -0700 | [diff] [blame] | 1648 | f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1649 | unlock_page(page); |
| 1650 | } |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 1651 | put_page(page); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1652 | } |
| 1653 | |
| 1654 | static inline void f2fs_put_dnode(struct dnode_of_data *dn) |
| 1655 | { |
| 1656 | if (dn->node_page) |
| 1657 | f2fs_put_page(dn->node_page, 1); |
| 1658 | if (dn->inode_page && dn->node_page != dn->inode_page) |
| 1659 | f2fs_put_page(dn->inode_page, 0); |
| 1660 | dn->node_page = NULL; |
| 1661 | dn->inode_page = NULL; |
| 1662 | } |
| 1663 | |
| 1664 | static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, |
Gu Zheng | e8512d2 | 2014-03-07 18:43:28 +0800 | [diff] [blame] | 1665 | size_t size) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1666 | { |
Gu Zheng | e8512d2 | 2014-03-07 18:43:28 +0800 | [diff] [blame] | 1667 | return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1668 | } |
| 1669 | |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 1670 | static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, |
| 1671 | gfp_t flags) |
| 1672 | { |
| 1673 | void *entry; |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 1674 | |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 1675 | entry = kmem_cache_alloc(cachep, flags); |
| 1676 | if (!entry) |
| 1677 | entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); |
Gu Zheng | 7bd5938 | 2013-10-22 14:52:26 +0800 | [diff] [blame] | 1678 | return entry; |
| 1679 | } |
| 1680 | |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 1681 | static inline struct bio *f2fs_bio_alloc(int npages) |
| 1682 | { |
| 1683 | struct bio *bio; |
| 1684 | |
| 1685 | /* No failure on bio allocation */ |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 1686 | bio = bio_alloc(GFP_NOIO, npages); |
Jaegeuk Kim | 80c5450 | 2015-08-20 08:51:56 -0700 | [diff] [blame] | 1687 | if (!bio) |
| 1688 | bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); |
Jaegeuk Kim | 740432f | 2015-08-14 11:43:56 -0700 | [diff] [blame] | 1689 | return bio; |
| 1690 | } |
| 1691 | |
Jaegeuk Kim | 9be32d7 | 2014-12-05 10:39:49 -0800 | [diff] [blame] | 1692 | static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, |
| 1693 | unsigned long index, void *item) |
| 1694 | { |
| 1695 | while (radix_tree_insert(root, index, item)) |
| 1696 | cond_resched(); |
| 1697 | } |
| 1698 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1699 | #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) |
| 1700 | |
| 1701 | static inline bool IS_INODE(struct page *page) |
| 1702 | { |
Gu Zheng | 4559071 | 2013-07-15 17:57:38 +0800 | [diff] [blame] | 1703 | struct f2fs_node *p = F2FS_NODE(page); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1704 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1705 | return RAW_IS_INODE(p); |
| 1706 | } |
| 1707 | |
| 1708 | static inline __le32 *blkaddr_in_node(struct f2fs_node *node) |
| 1709 | { |
| 1710 | return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; |
| 1711 | } |
| 1712 | |
| 1713 | static inline block_t datablock_addr(struct page *node_page, |
| 1714 | unsigned int offset) |
| 1715 | { |
| 1716 | struct f2fs_node *raw_node; |
| 1717 | __le32 *addr_array; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1718 | |
Gu Zheng | 4559071 | 2013-07-15 17:57:38 +0800 | [diff] [blame] | 1719 | raw_node = F2FS_NODE(node_page); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1720 | addr_array = blkaddr_in_node(raw_node); |
| 1721 | return le32_to_cpu(addr_array[offset]); |
| 1722 | } |
| 1723 | |
| 1724 | static inline int f2fs_test_bit(unsigned int nr, char *addr) |
| 1725 | { |
| 1726 | int mask; |
| 1727 | |
| 1728 | addr += (nr >> 3); |
| 1729 | mask = 1 << (7 - (nr & 0x07)); |
| 1730 | return mask & *addr; |
| 1731 | } |
| 1732 | |
Jaegeuk Kim | a66cdd9 | 2015-04-30 22:37:50 -0700 | [diff] [blame] | 1733 | static inline void f2fs_set_bit(unsigned int nr, char *addr) |
| 1734 | { |
| 1735 | int mask; |
| 1736 | |
| 1737 | addr += (nr >> 3); |
| 1738 | mask = 1 << (7 - (nr & 0x07)); |
| 1739 | *addr |= mask; |
| 1740 | } |
| 1741 | |
| 1742 | static inline void f2fs_clear_bit(unsigned int nr, char *addr) |
| 1743 | { |
| 1744 | int mask; |
| 1745 | |
| 1746 | addr += (nr >> 3); |
| 1747 | mask = 1 << (7 - (nr & 0x07)); |
| 1748 | *addr &= ~mask; |
| 1749 | } |
| 1750 | |
Gu Zheng | 52aca07 | 2014-10-20 17:45:51 +0800 | [diff] [blame] | 1751 | static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1752 | { |
| 1753 | int mask; |
| 1754 | int ret; |
| 1755 | |
| 1756 | addr += (nr >> 3); |
| 1757 | mask = 1 << (7 - (nr & 0x07)); |
| 1758 | ret = mask & *addr; |
| 1759 | *addr |= mask; |
| 1760 | return ret; |
| 1761 | } |
| 1762 | |
Gu Zheng | 52aca07 | 2014-10-20 17:45:51 +0800 | [diff] [blame] | 1763 | static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1764 | { |
| 1765 | int mask; |
| 1766 | int ret; |
| 1767 | |
| 1768 | addr += (nr >> 3); |
| 1769 | mask = 1 << (7 - (nr & 0x07)); |
| 1770 | ret = mask & *addr; |
| 1771 | *addr &= ~mask; |
| 1772 | return ret; |
| 1773 | } |
| 1774 | |
Gu Zheng | c6ac4c0 | 2014-10-20 17:45:50 +0800 | [diff] [blame] | 1775 | static inline void f2fs_change_bit(unsigned int nr, char *addr) |
| 1776 | { |
| 1777 | int mask; |
| 1778 | |
| 1779 | addr += (nr >> 3); |
| 1780 | mask = 1 << (7 - (nr & 0x07)); |
| 1781 | *addr ^= mask; |
| 1782 | } |
| 1783 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1784 | /* used for f2fs_inode_info->flags */ |
| 1785 | enum { |
| 1786 | FI_NEW_INODE, /* indicate newly allocated inode */ |
Jaegeuk Kim | b378387 | 2013-06-10 09:17:01 +0900 | [diff] [blame] | 1787 | FI_DIRTY_INODE, /* indicate inode is dirty or not */ |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1788 | FI_AUTO_RECOVER, /* indicate inode is recoverable */ |
Jaegeuk Kim | ed57c27 | 2014-04-15 11:19:28 +0900 | [diff] [blame] | 1789 | FI_DIRTY_DIR, /* indicate directory has dirty pages */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1790 | FI_INC_LINK, /* need to increment i_nlink */ |
| 1791 | FI_ACL_MODE, /* indicate acl mode */ |
| 1792 | FI_NO_ALLOC, /* should not allocate any blocks */ |
Jaegeuk Kim | c9b63bd | 2015-06-23 10:36:08 -0700 | [diff] [blame] | 1793 | FI_FREE_NID, /* free allocated nide */ |
Jaegeuk Kim | c11abd1 | 2013-11-19 10:41:54 +0900 | [diff] [blame] | 1794 | FI_NO_EXTENT, /* not to use the extent cache */ |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1795 | FI_INLINE_XATTR, /* used for inline xattr */ |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 1796 | FI_INLINE_DATA, /* used for inline data*/ |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 1797 | FI_INLINE_DENTRY, /* used for inline dentry */ |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 1798 | FI_APPEND_WRITE, /* inode has appended data */ |
| 1799 | FI_UPDATE_WRITE, /* inode has in-place-update data */ |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 1800 | FI_NEED_IPU, /* used for ipu per file */ |
| 1801 | FI_ATOMIC_FILE, /* indicate atomic file */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1802 | FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 1803 | FI_VOLATILE_FILE, /* indicate volatile file */ |
Jaegeuk Kim | 3c6c2be | 2015-03-17 17:16:35 -0700 | [diff] [blame] | 1804 | FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ |
Jaegeuk Kim | 1e84371 | 2014-12-09 06:08:59 -0800 | [diff] [blame] | 1805 | FI_DROP_CACHE, /* drop dirty page cache */ |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1806 | FI_DATA_EXIST, /* indicate data exists */ |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1807 | FI_INLINE_DOTS, /* indicate inline dot dentries */ |
Chao Yu | d323d00 | 2015-10-27 09:53:45 +0800 | [diff] [blame] | 1808 | FI_DO_DEFRAG, /* indicate defragment is running */ |
Chao Yu | c227f91 | 2015-12-16 13:09:20 +0800 | [diff] [blame] | 1809 | FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1810 | FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ |
| 1811 | FI_HOT_DATA, /* indicate file is hot */ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1812 | }; |
| 1813 | |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1814 | static inline void __mark_inode_dirty_flag(struct inode *inode, |
| 1815 | int flag, bool set) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1816 | { |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1817 | switch (flag) { |
| 1818 | case FI_INLINE_XATTR: |
| 1819 | case FI_INLINE_DATA: |
| 1820 | case FI_INLINE_DENTRY: |
| 1821 | if (set) |
| 1822 | return; |
| 1823 | case FI_DATA_EXIST: |
| 1824 | case FI_INLINE_DOTS: |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1825 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1826 | } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1827 | } |
| 1828 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1829 | static inline void set_inode_flag(struct inode *inode, int flag) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1830 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1831 | if (!test_bit(flag, &F2FS_I(inode)->flags)) |
| 1832 | set_bit(flag, &F2FS_I(inode)->flags); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1833 | __mark_inode_dirty_flag(inode, flag, true); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1834 | } |
| 1835 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1836 | static inline int is_inode_flag_set(struct inode *inode, int flag) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1837 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1838 | return test_bit(flag, &F2FS_I(inode)->flags); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1839 | } |
| 1840 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1841 | static inline void clear_inode_flag(struct inode *inode, int flag) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1842 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1843 | if (test_bit(flag, &F2FS_I(inode)->flags)) |
| 1844 | clear_bit(flag, &F2FS_I(inode)->flags); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1845 | __mark_inode_dirty_flag(inode, flag, false); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1846 | } |
| 1847 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1848 | static inline void set_acl_inode(struct inode *inode, umode_t mode) |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1849 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1850 | F2FS_I(inode)->i_acl_mode = mode; |
| 1851 | set_inode_flag(inode, FI_ACL_MODE); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1852 | f2fs_mark_inode_dirty_sync(inode, false); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 1853 | } |
| 1854 | |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1855 | static inline void f2fs_i_links_write(struct inode *inode, bool inc) |
| 1856 | { |
| 1857 | if (inc) |
| 1858 | inc_nlink(inode); |
| 1859 | else |
| 1860 | drop_nlink(inode); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1861 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1862 | } |
| 1863 | |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1864 | static inline void f2fs_i_blocks_write(struct inode *inode, |
Chao Yu | 56a0d93 | 2017-06-14 23:00:56 +0800 | [diff] [blame^] | 1865 | block_t diff, bool add) |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1866 | { |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1867 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
| 1868 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); |
Chao Yu | 56a0d93 | 2017-06-14 23:00:56 +0800 | [diff] [blame^] | 1869 | blkcnt_t sectors = diff << F2FS_LOG_SECTORS_PER_BLOCK; |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1870 | |
Chao Yu | 56a0d93 | 2017-06-14 23:00:56 +0800 | [diff] [blame^] | 1871 | inode->i_blocks = add ? inode->i_blocks + sectors : |
| 1872 | inode->i_blocks - sectors; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1873 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1874 | if (clean || recover) |
| 1875 | set_inode_flag(inode, FI_AUTO_RECOVER); |
Jaegeuk Kim | 8edd03c | 2016-05-20 09:26:06 -0700 | [diff] [blame] | 1876 | } |
| 1877 | |
Jaegeuk Kim | fc9581c | 2016-05-20 09:22:03 -0700 | [diff] [blame] | 1878 | static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) |
| 1879 | { |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1880 | bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); |
| 1881 | bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); |
| 1882 | |
Jaegeuk Kim | fc9581c | 2016-05-20 09:22:03 -0700 | [diff] [blame] | 1883 | if (i_size_read(inode) == i_size) |
| 1884 | return; |
| 1885 | |
| 1886 | i_size_write(inode, i_size); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1887 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | 26de9b1 | 2016-05-20 20:42:37 -0700 | [diff] [blame] | 1888 | if (clean || recover) |
| 1889 | set_inode_flag(inode, FI_AUTO_RECOVER); |
| 1890 | } |
| 1891 | |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1892 | static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) |
| 1893 | { |
| 1894 | F2FS_I(inode)->i_current_depth = depth; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1895 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1896 | } |
| 1897 | |
| 1898 | static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) |
| 1899 | { |
| 1900 | F2FS_I(inode)->i_xattr_nid = xnid; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1901 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1902 | } |
| 1903 | |
| 1904 | static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) |
| 1905 | { |
| 1906 | F2FS_I(inode)->i_pino = pino; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1907 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1908 | } |
| 1909 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1910 | static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1911 | { |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1912 | struct f2fs_inode_info *fi = F2FS_I(inode); |
| 1913 | |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1914 | if (ri->i_inline & F2FS_INLINE_XATTR) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1915 | set_bit(FI_INLINE_XATTR, &fi->flags); |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 1916 | if (ri->i_inline & F2FS_INLINE_DATA) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1917 | set_bit(FI_INLINE_DATA, &fi->flags); |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 1918 | if (ri->i_inline & F2FS_INLINE_DENTRY) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1919 | set_bit(FI_INLINE_DENTRY, &fi->flags); |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1920 | if (ri->i_inline & F2FS_DATA_EXIST) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1921 | set_bit(FI_DATA_EXIST, &fi->flags); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1922 | if (ri->i_inline & F2FS_INLINE_DOTS) |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 1923 | set_bit(FI_INLINE_DOTS, &fi->flags); |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1924 | } |
| 1925 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1926 | static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1927 | { |
| 1928 | ri->i_inline = 0; |
| 1929 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1930 | if (is_inode_flag_set(inode, FI_INLINE_XATTR)) |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1931 | ri->i_inline |= F2FS_INLINE_XATTR; |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1932 | if (is_inode_flag_set(inode, FI_INLINE_DATA)) |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 1933 | ri->i_inline |= F2FS_INLINE_DATA; |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1934 | if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 1935 | ri->i_inline |= F2FS_INLINE_DENTRY; |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1936 | if (is_inode_flag_set(inode, FI_DATA_EXIST)) |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1937 | ri->i_inline |= F2FS_DATA_EXIST; |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1938 | if (is_inode_flag_set(inode, FI_INLINE_DOTS)) |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1939 | ri->i_inline |= F2FS_INLINE_DOTS; |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 1940 | } |
| 1941 | |
Chao Yu | 987c7c3 | 2014-03-12 15:59:03 +0800 | [diff] [blame] | 1942 | static inline int f2fs_has_inline_xattr(struct inode *inode) |
| 1943 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1944 | return is_inode_flag_set(inode, FI_INLINE_XATTR); |
Chao Yu | 987c7c3 | 2014-03-12 15:59:03 +0800 | [diff] [blame] | 1945 | } |
| 1946 | |
Chao Yu | 81ca735 | 2016-01-26 15:39:35 +0800 | [diff] [blame] | 1947 | static inline unsigned int addrs_per_inode(struct inode *inode) |
Jaegeuk Kim | de93653 | 2013-08-12 21:08:03 +0900 | [diff] [blame] | 1948 | { |
Chao Yu | 81ca735 | 2016-01-26 15:39:35 +0800 | [diff] [blame] | 1949 | if (f2fs_has_inline_xattr(inode)) |
Jaegeuk Kim | de93653 | 2013-08-12 21:08:03 +0900 | [diff] [blame] | 1950 | return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS; |
| 1951 | return DEF_ADDRS_PER_INODE; |
| 1952 | } |
| 1953 | |
Jaegeuk Kim | 65985d9 | 2013-08-14 21:57:27 +0900 | [diff] [blame] | 1954 | static inline void *inline_xattr_addr(struct page *page) |
| 1955 | { |
Chao Yu | 695fd1e | 2014-02-27 19:52:21 +0800 | [diff] [blame] | 1956 | struct f2fs_inode *ri = F2FS_INODE(page); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1957 | |
Jaegeuk Kim | 65985d9 | 2013-08-14 21:57:27 +0900 | [diff] [blame] | 1958 | return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - |
| 1959 | F2FS_INLINE_XATTR_ADDRS]); |
| 1960 | } |
| 1961 | |
| 1962 | static inline int inline_xattr_size(struct inode *inode) |
| 1963 | { |
Chao Yu | 987c7c3 | 2014-03-12 15:59:03 +0800 | [diff] [blame] | 1964 | if (f2fs_has_inline_xattr(inode)) |
Jaegeuk Kim | 65985d9 | 2013-08-14 21:57:27 +0900 | [diff] [blame] | 1965 | return F2FS_INLINE_XATTR_ADDRS << 2; |
| 1966 | else |
| 1967 | return 0; |
| 1968 | } |
| 1969 | |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 1970 | static inline int f2fs_has_inline_data(struct inode *inode) |
| 1971 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1972 | return is_inode_flag_set(inode, FI_INLINE_DATA); |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 1973 | } |
| 1974 | |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1975 | static inline int f2fs_exist_data(struct inode *inode) |
| 1976 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1977 | return is_inode_flag_set(inode, FI_DATA_EXIST); |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 1978 | } |
| 1979 | |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1980 | static inline int f2fs_has_inline_dots(struct inode *inode) |
| 1981 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1982 | return is_inode_flag_set(inode, FI_INLINE_DOTS); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 1983 | } |
| 1984 | |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 1985 | static inline bool f2fs_is_atomic_file(struct inode *inode) |
| 1986 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1987 | return is_inode_flag_set(inode, FI_ATOMIC_FILE); |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 1988 | } |
| 1989 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 1990 | static inline bool f2fs_is_commit_atomic_write(struct inode *inode) |
| 1991 | { |
| 1992 | return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); |
| 1993 | } |
| 1994 | |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 1995 | static inline bool f2fs_is_volatile_file(struct inode *inode) |
| 1996 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1997 | return is_inode_flag_set(inode, FI_VOLATILE_FILE); |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 1998 | } |
| 1999 | |
Jaegeuk Kim | 3c6c2be | 2015-03-17 17:16:35 -0700 | [diff] [blame] | 2000 | static inline bool f2fs_is_first_block_written(struct inode *inode) |
| 2001 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 2002 | return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); |
Jaegeuk Kim | 3c6c2be | 2015-03-17 17:16:35 -0700 | [diff] [blame] | 2003 | } |
| 2004 | |
Jaegeuk Kim | 1e84371 | 2014-12-09 06:08:59 -0800 | [diff] [blame] | 2005 | static inline bool f2fs_is_drop_cache(struct inode *inode) |
| 2006 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 2007 | return is_inode_flag_set(inode, FI_DROP_CACHE); |
Jaegeuk Kim | 1e84371 | 2014-12-09 06:08:59 -0800 | [diff] [blame] | 2008 | } |
| 2009 | |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 2010 | static inline void *inline_data_addr(struct page *page) |
| 2011 | { |
Chao Yu | 695fd1e | 2014-02-27 19:52:21 +0800 | [diff] [blame] | 2012 | struct f2fs_inode *ri = F2FS_INODE(page); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2013 | |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 2014 | return (void *)&(ri->i_addr[1]); |
| 2015 | } |
| 2016 | |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 2017 | static inline int f2fs_has_inline_dentry(struct inode *inode) |
| 2018 | { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 2019 | return is_inode_flag_set(inode, FI_INLINE_DENTRY); |
Chao Yu | 34d67de | 2014-09-24 18:15:19 +0800 | [diff] [blame] | 2020 | } |
| 2021 | |
Jaegeuk Kim | 9486ba442 | 2014-11-21 16:36:28 -0800 | [diff] [blame] | 2022 | static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page) |
| 2023 | { |
| 2024 | if (!f2fs_has_inline_dentry(dir)) |
| 2025 | kunmap(page); |
| 2026 | } |
| 2027 | |
Jaegeuk Kim | b5492af7 | 2015-04-20 13:44:41 -0700 | [diff] [blame] | 2028 | static inline int is_file(struct inode *inode, int type) |
| 2029 | { |
| 2030 | return F2FS_I(inode)->i_advise & type; |
| 2031 | } |
| 2032 | |
| 2033 | static inline void set_file(struct inode *inode, int type) |
| 2034 | { |
| 2035 | F2FS_I(inode)->i_advise |= type; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2036 | f2fs_mark_inode_dirty_sync(inode, true); |
Jaegeuk Kim | b5492af7 | 2015-04-20 13:44:41 -0700 | [diff] [blame] | 2037 | } |
| 2038 | |
| 2039 | static inline void clear_file(struct inode *inode, int type) |
| 2040 | { |
| 2041 | F2FS_I(inode)->i_advise &= ~type; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2042 | f2fs_mark_inode_dirty_sync(inode, true); |
| 2043 | } |
| 2044 | |
| 2045 | static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) |
| 2046 | { |
| 2047 | if (dsync) { |
| 2048 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
| 2049 | bool ret; |
| 2050 | |
| 2051 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
| 2052 | ret = list_empty(&F2FS_I(inode)->gdirty_list); |
| 2053 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
| 2054 | return ret; |
| 2055 | } |
| 2056 | if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || |
| 2057 | file_keep_isize(inode) || |
| 2058 | i_size_read(inode) & PAGE_MASK) |
| 2059 | return false; |
| 2060 | return F2FS_I(inode)->last_disk_size == i_size_read(inode); |
Jaegeuk Kim | b5492af7 | 2015-04-20 13:44:41 -0700 | [diff] [blame] | 2061 | } |
| 2062 | |
Jaegeuk Kim | 77888c1 | 2013-05-20 20:28:47 +0900 | [diff] [blame] | 2063 | static inline int f2fs_readonly(struct super_block *sb) |
| 2064 | { |
| 2065 | return sb->s_flags & MS_RDONLY; |
| 2066 | } |
| 2067 | |
Jaegeuk Kim | 1e968fd | 2014-08-11 16:49:25 -0700 | [diff] [blame] | 2068 | static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) |
| 2069 | { |
Chao Yu | aaec2b1 | 2016-09-20 11:04:18 +0800 | [diff] [blame] | 2070 | return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); |
Jaegeuk Kim | 1e968fd | 2014-08-11 16:49:25 -0700 | [diff] [blame] | 2071 | } |
| 2072 | |
Jaegeuk Kim | eaa693f | 2015-04-26 00:15:29 -0700 | [diff] [blame] | 2073 | static inline bool is_dot_dotdot(const struct qstr *str) |
| 2074 | { |
| 2075 | if (str->len == 1 && str->name[0] == '.') |
| 2076 | return true; |
| 2077 | |
| 2078 | if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') |
| 2079 | return true; |
| 2080 | |
| 2081 | return false; |
| 2082 | } |
| 2083 | |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 2084 | static inline bool f2fs_may_extent_tree(struct inode *inode) |
| 2085 | { |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 2086 | if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) || |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 2087 | is_inode_flag_set(inode, FI_NO_EXTENT)) |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 2088 | return false; |
| 2089 | |
Al Viro | 886f56f | 2015-12-05 03:56:06 -0500 | [diff] [blame] | 2090 | return S_ISREG(inode->i_mode); |
Jaegeuk Kim | 3e72f72 | 2015-06-19 17:53:26 -0700 | [diff] [blame] | 2091 | } |
| 2092 | |
Chao Yu | 1ecc0c5 | 2016-09-23 21:30:09 +0800 | [diff] [blame] | 2093 | static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, |
| 2094 | size_t size, gfp_t flags) |
Jaegeuk Kim | 0414b00 | 2016-04-29 15:16:42 -0700 | [diff] [blame] | 2095 | { |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 2096 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2097 | if (time_to_inject(sbi, FAULT_KMALLOC)) { |
| 2098 | f2fs_show_injection_info(FAULT_KMALLOC); |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 2099 | return NULL; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2100 | } |
Jaegeuk Kim | 2c63fea | 2016-04-29 15:49:56 -0700 | [diff] [blame] | 2101 | #endif |
Jaegeuk Kim | 0414b00 | 2016-04-29 15:16:42 -0700 | [diff] [blame] | 2102 | return kmalloc(size, flags); |
| 2103 | } |
| 2104 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2105 | static inline void *kvmalloc(size_t size, gfp_t flags) |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 2106 | { |
| 2107 | void *ret; |
| 2108 | |
| 2109 | ret = kmalloc(size, flags | __GFP_NOWARN); |
| 2110 | if (!ret) |
| 2111 | ret = __vmalloc(size, flags, PAGE_KERNEL); |
| 2112 | return ret; |
| 2113 | } |
| 2114 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2115 | static inline void *kvzalloc(size_t size, gfp_t flags) |
Jaegeuk Kim | 39307a8 | 2015-09-22 13:50:47 -0700 | [diff] [blame] | 2116 | { |
| 2117 | void *ret; |
| 2118 | |
| 2119 | ret = kzalloc(size, flags | __GFP_NOWARN); |
| 2120 | if (!ret) |
| 2121 | ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL); |
| 2122 | return ret; |
| 2123 | } |
| 2124 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2125 | static inline int wbc_to_write_flags(struct writeback_control *wbc) |
| 2126 | { |
| 2127 | if (wbc->sync_mode == WB_SYNC_ALL) |
| 2128 | return REQ_SYNC; |
| 2129 | else if (wbc->for_kupdate || wbc->for_background) |
| 2130 | return 0; |
| 2131 | |
| 2132 | return 0; |
| 2133 | } |
| 2134 | |
Christoph Hellwig | a6dda0e | 2013-12-20 05:16:45 -0800 | [diff] [blame] | 2135 | #define get_inode_mode(i) \ |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 2136 | ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ |
Christoph Hellwig | a6dda0e | 2013-12-20 05:16:45 -0800 | [diff] [blame] | 2137 | (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) |
| 2138 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2139 | /* |
| 2140 | * file.c |
| 2141 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2142 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); |
| 2143 | void truncate_data_blocks(struct dnode_of_data *dn); |
| 2144 | int truncate_blocks(struct inode *inode, u64 from, bool lock); |
| 2145 | int f2fs_truncate(struct inode *inode); |
| 2146 | int f2fs_getattr(struct vfsmount *mnt, struct dentry *dentry, |
| 2147 | struct kstat *stat); |
| 2148 | int f2fs_setattr(struct dentry *dentry, struct iattr *attr); |
| 2149 | int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); |
| 2150 | int truncate_data_blocks_range(struct dnode_of_data *dn, int count); |
| 2151 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); |
| 2152 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2153 | |
| 2154 | /* |
| 2155 | * inode.c |
| 2156 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2157 | void f2fs_set_inode_flags(struct inode *inode); |
| 2158 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); |
| 2159 | struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); |
| 2160 | int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); |
| 2161 | int update_inode(struct inode *inode, struct page *node_page); |
| 2162 | int update_inode_page(struct inode *inode); |
| 2163 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); |
| 2164 | void f2fs_evict_inode(struct inode *inode); |
| 2165 | void handle_failed_inode(struct inode *inode); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2166 | |
| 2167 | /* |
| 2168 | * namei.c |
| 2169 | */ |
| 2170 | struct dentry *f2fs_get_parent(struct dentry *child); |
| 2171 | |
| 2172 | /* |
| 2173 | * dir.c |
| 2174 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2175 | void set_de_type(struct f2fs_dir_entry *de, umode_t mode); |
| 2176 | unsigned char get_de_type(struct f2fs_dir_entry *de); |
| 2177 | struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname, |
| 2178 | f2fs_hash_t namehash, int *max_slots, |
| 2179 | struct f2fs_dentry_ptr *d); |
| 2180 | int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, |
| 2181 | unsigned int start_pos, struct fscrypt_str *fstr); |
| 2182 | void do_make_empty_dir(struct inode *inode, struct inode *parent, |
| 2183 | struct f2fs_dentry_ptr *d); |
| 2184 | struct page *init_inode_metadata(struct inode *inode, struct inode *dir, |
| 2185 | const struct qstr *new_name, |
| 2186 | const struct qstr *orig_name, struct page *dpage); |
| 2187 | void update_parent_metadata(struct inode *dir, struct inode *inode, |
| 2188 | unsigned int current_depth); |
| 2189 | int room_for_filename(const void *bitmap, int slots, int max_slots); |
| 2190 | void f2fs_drop_nlink(struct inode *dir, struct inode *inode); |
| 2191 | struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, |
| 2192 | struct fscrypt_name *fname, struct page **res_page); |
| 2193 | struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, |
| 2194 | const struct qstr *child, struct page **res_page); |
| 2195 | struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); |
| 2196 | ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, |
| 2197 | struct page **page); |
| 2198 | void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, |
| 2199 | struct page *page, struct inode *inode); |
| 2200 | void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, |
| 2201 | const struct qstr *name, f2fs_hash_t name_hash, |
| 2202 | unsigned int bit_pos); |
| 2203 | int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, |
| 2204 | const struct qstr *orig_name, |
| 2205 | struct inode *inode, nid_t ino, umode_t mode); |
| 2206 | int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname, |
| 2207 | struct inode *inode, nid_t ino, umode_t mode); |
| 2208 | int __f2fs_add_link(struct inode *dir, const struct qstr *name, |
| 2209 | struct inode *inode, nid_t ino, umode_t mode); |
| 2210 | void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, |
| 2211 | struct inode *dir, struct inode *inode); |
| 2212 | int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); |
| 2213 | bool f2fs_empty_dir(struct inode *dir); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2214 | |
Al Viro | b7f7a5e | 2013-01-25 16:15:43 -0500 | [diff] [blame] | 2215 | static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) |
| 2216 | { |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 2217 | return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name, |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 2218 | inode, inode->i_ino, inode->i_mode); |
Al Viro | b7f7a5e | 2013-01-25 16:15:43 -0500 | [diff] [blame] | 2219 | } |
| 2220 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2221 | /* |
| 2222 | * super.c |
| 2223 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2224 | int f2fs_inode_dirtied(struct inode *inode, bool sync); |
| 2225 | void f2fs_inode_synced(struct inode *inode); |
| 2226 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); |
| 2227 | int f2fs_sync_fs(struct super_block *sb, int sync); |
Namjae Jeon | a07ef78 | 2012-12-30 14:52:05 +0900 | [diff] [blame] | 2228 | extern __printf(3, 4) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2229 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); |
Shawn Lin | 984ec63 | 2016-02-17 11:26:32 +0800 | [diff] [blame] | 2230 | int sanity_check_ckpt(struct f2fs_sb_info *sbi); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2231 | |
| 2232 | /* |
| 2233 | * hash.c |
| 2234 | */ |
Jaegeuk Kim | 8daed21 | 2017-04-24 10:00:08 -0700 | [diff] [blame] | 2235 | f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info, |
| 2236 | struct fscrypt_name *fname); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2237 | |
| 2238 | /* |
| 2239 | * node.c |
| 2240 | */ |
| 2241 | struct dnode_of_data; |
| 2242 | struct node_info; |
| 2243 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2244 | bool available_free_memory(struct f2fs_sb_info *sbi, int type); |
| 2245 | int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); |
| 2246 | bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); |
| 2247 | bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); |
| 2248 | void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni); |
| 2249 | pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); |
| 2250 | int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); |
| 2251 | int truncate_inode_blocks(struct inode *inode, pgoff_t from); |
| 2252 | int truncate_xattr_node(struct inode *inode, struct page *page); |
| 2253 | int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino); |
| 2254 | int remove_inode_page(struct inode *inode); |
| 2255 | struct page *new_inode_page(struct inode *inode); |
| 2256 | struct page *new_node_page(struct dnode_of_data *dn, |
| 2257 | unsigned int ofs, struct page *ipage); |
| 2258 | void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); |
| 2259 | struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); |
| 2260 | struct page *get_node_page_ra(struct page *parent, int start); |
| 2261 | void move_node_page(struct page *node_page, int gc_type); |
| 2262 | int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, |
| 2263 | struct writeback_control *wbc, bool atomic); |
| 2264 | int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc); |
| 2265 | void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); |
| 2266 | bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); |
| 2267 | void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); |
| 2268 | void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); |
| 2269 | int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); |
| 2270 | void recover_inline_xattr(struct inode *inode, struct page *page); |
| 2271 | int recover_xattr_data(struct inode *inode, struct page *page, |
| 2272 | block_t blkaddr); |
| 2273 | int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); |
| 2274 | int restore_node_summary(struct f2fs_sb_info *sbi, |
| 2275 | unsigned int segno, struct f2fs_summary_block *sum); |
| 2276 | void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
| 2277 | int build_node_manager(struct f2fs_sb_info *sbi); |
| 2278 | void destroy_node_manager(struct f2fs_sb_info *sbi); |
Namjae Jeon | 6e6093a | 2013-01-17 00:08:30 +0900 | [diff] [blame] | 2279 | int __init create_node_manager_caches(void); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2280 | void destroy_node_manager_caches(void); |
| 2281 | |
| 2282 | /* |
| 2283 | * segment.c |
| 2284 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2285 | void register_inmem_page(struct inode *inode, struct page *page); |
| 2286 | void drop_inmem_pages(struct inode *inode); |
| 2287 | void drop_inmem_page(struct inode *inode, struct page *page); |
| 2288 | int commit_inmem_pages(struct inode *inode); |
| 2289 | void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); |
| 2290 | void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi); |
| 2291 | int f2fs_issue_flush(struct f2fs_sb_info *sbi); |
| 2292 | int create_flush_cmd_control(struct f2fs_sb_info *sbi); |
| 2293 | void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); |
| 2294 | void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); |
| 2295 | bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); |
| 2296 | void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new); |
| 2297 | void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi); |
| 2298 | void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
| 2299 | void release_discard_addrs(struct f2fs_sb_info *sbi); |
| 2300 | int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); |
| 2301 | void allocate_new_segments(struct f2fs_sb_info *sbi); |
| 2302 | int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); |
| 2303 | bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
| 2304 | struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); |
| 2305 | void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr); |
| 2306 | void write_meta_page(struct f2fs_sb_info *sbi, struct page *page); |
| 2307 | void write_node_page(unsigned int nid, struct f2fs_io_info *fio); |
| 2308 | void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio); |
| 2309 | int rewrite_data_page(struct f2fs_io_info *fio); |
| 2310 | void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, |
| 2311 | block_t old_blkaddr, block_t new_blkaddr, |
| 2312 | bool recover_curseg, bool recover_newaddr); |
| 2313 | void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, |
| 2314 | block_t old_addr, block_t new_addr, |
| 2315 | unsigned char version, bool recover_curseg, |
| 2316 | bool recover_newaddr); |
| 2317 | void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, |
| 2318 | block_t old_blkaddr, block_t *new_blkaddr, |
Chao Yu | c52dc0f | 2017-05-19 23:37:01 +0800 | [diff] [blame] | 2319 | struct f2fs_summary *sum, int type, |
| 2320 | struct f2fs_io_info *fio, bool add_list); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2321 | void f2fs_wait_on_page_writeback(struct page *page, |
| 2322 | enum page_type type, bool ordered); |
| 2323 | void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi, |
| 2324 | block_t blkaddr); |
| 2325 | void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); |
| 2326 | void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); |
| 2327 | int lookup_journal_in_cursum(struct f2fs_journal *journal, int type, |
| 2328 | unsigned int val, int alloc); |
| 2329 | void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
| 2330 | int build_segment_manager(struct f2fs_sb_info *sbi); |
| 2331 | void destroy_segment_manager(struct f2fs_sb_info *sbi); |
Jaegeuk Kim | 7fd9e54 | 2013-11-15 13:55:58 +0900 | [diff] [blame] | 2332 | int __init create_segment_manager_caches(void); |
| 2333 | void destroy_segment_manager_caches(void); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2334 | |
| 2335 | /* |
| 2336 | * checkpoint.c |
| 2337 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2338 | void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); |
| 2339 | struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); |
| 2340 | struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); |
| 2341 | struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); |
| 2342 | bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type); |
| 2343 | int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, |
| 2344 | int type, bool sync); |
| 2345 | void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); |
| 2346 | long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, |
| 2347 | long nr_to_write); |
| 2348 | void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); |
| 2349 | void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); |
| 2350 | void release_ino_entry(struct f2fs_sb_info *sbi, bool all); |
| 2351 | bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); |
| 2352 | int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); |
| 2353 | int acquire_orphan_inode(struct f2fs_sb_info *sbi); |
| 2354 | void release_orphan_inode(struct f2fs_sb_info *sbi); |
| 2355 | void add_orphan_inode(struct inode *inode); |
| 2356 | void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); |
| 2357 | int recover_orphan_inodes(struct f2fs_sb_info *sbi); |
| 2358 | int get_valid_checkpoint(struct f2fs_sb_info *sbi); |
| 2359 | void update_dirty_page(struct inode *inode, struct page *page); |
| 2360 | void remove_dirty_inode(struct inode *inode); |
| 2361 | int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); |
| 2362 | int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); |
| 2363 | void init_ino_entry_info(struct f2fs_sb_info *sbi); |
Namjae Jeon | 6e6093a | 2013-01-17 00:08:30 +0900 | [diff] [blame] | 2364 | int __init create_checkpoint_caches(void); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2365 | void destroy_checkpoint_caches(void); |
| 2366 | |
| 2367 | /* |
| 2368 | * data.c |
| 2369 | */ |
Jaegeuk Kim | 9bc576a | 2017-05-10 11:28:38 -0700 | [diff] [blame] | 2370 | void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); |
| 2371 | void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2372 | struct inode *inode, nid_t ino, pgoff_t idx, |
Jaegeuk Kim | 9bc576a | 2017-05-10 11:28:38 -0700 | [diff] [blame] | 2373 | enum page_type type); |
| 2374 | void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2375 | int f2fs_submit_page_bio(struct f2fs_io_info *fio); |
Jaegeuk Kim | 9bc576a | 2017-05-10 11:28:38 -0700 | [diff] [blame] | 2376 | int f2fs_submit_page_write(struct f2fs_io_info *fio); |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2377 | struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, |
| 2378 | block_t blk_addr, struct bio *bio); |
| 2379 | int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); |
| 2380 | void set_data_blkaddr(struct dnode_of_data *dn); |
| 2381 | void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); |
| 2382 | int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); |
| 2383 | int reserve_new_block(struct dnode_of_data *dn); |
| 2384 | int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); |
| 2385 | int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); |
| 2386 | int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); |
| 2387 | struct page *get_read_data_page(struct inode *inode, pgoff_t index, |
| 2388 | int op_flags, bool for_write); |
| 2389 | struct page *find_data_page(struct inode *inode, pgoff_t index); |
| 2390 | struct page *get_lock_data_page(struct inode *inode, pgoff_t index, |
| 2391 | bool for_write); |
| 2392 | struct page *get_new_data_page(struct inode *inode, |
| 2393 | struct page *ipage, pgoff_t index, bool new_i_size); |
| 2394 | int do_write_data_page(struct f2fs_io_info *fio); |
| 2395 | int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, |
| 2396 | int create, int flag); |
| 2397 | int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, |
| 2398 | u64 start, u64 len); |
| 2399 | void f2fs_set_page_dirty_nobuffers(struct page *page); |
| 2400 | void f2fs_invalidate_page(struct page *page, unsigned int offset, |
| 2401 | unsigned int length); |
| 2402 | int f2fs_release_page(struct page *page, gfp_t wait); |
Weichao Guo | 5b7a487 | 2016-09-20 05:03:27 +0800 | [diff] [blame] | 2403 | #ifdef CONFIG_MIGRATION |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2404 | int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, |
| 2405 | struct page *page, enum migrate_mode mode); |
Weichao Guo | 5b7a487 | 2016-09-20 05:03:27 +0800 | [diff] [blame] | 2406 | #endif |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2407 | |
| 2408 | /* |
| 2409 | * gc.c |
| 2410 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2411 | int start_gc_thread(struct f2fs_sb_info *sbi); |
| 2412 | void stop_gc_thread(struct f2fs_sb_info *sbi); |
| 2413 | block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode); |
| 2414 | int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, |
| 2415 | unsigned int segno); |
| 2416 | void build_gc_manager(struct f2fs_sb_info *sbi); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2417 | |
| 2418 | /* |
| 2419 | * recovery.c |
| 2420 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2421 | int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); |
| 2422 | bool space_for_roll_forward(struct f2fs_sb_info *sbi); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2423 | |
| 2424 | /* |
| 2425 | * debug.c |
| 2426 | */ |
| 2427 | #ifdef CONFIG_F2FS_STAT_FS |
| 2428 | struct f2fs_stat_info { |
| 2429 | struct list_head stat_list; |
| 2430 | struct f2fs_sb_info *sbi; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2431 | int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; |
| 2432 | int main_area_segs, main_area_sections, main_area_zones; |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 2433 | unsigned long long hit_largest, hit_cached, hit_rbtree; |
| 2434 | unsigned long long hit_total, total_ext; |
Jaegeuk Kim | c00ba55 | 2015-12-31 15:24:14 -0800 | [diff] [blame] | 2435 | int ext_tree, zombie_tree, ext_node; |
Jaegeuk Kim | 725ba1a | 2016-10-20 19:09:57 -0700 | [diff] [blame] | 2436 | int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta; |
| 2437 | int inmem_pages; |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 2438 | unsigned int ndirty_dirs, ndirty_files, ndirty_all; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2439 | int nats, dirty_nats, sits, dirty_sits; |
| 2440 | int free_nids, avail_nids, alloc_nids; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2441 | int total_count, utilization; |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2442 | int bg_gc, nr_wb_cp_data, nr_wb_data; |
| 2443 | int nr_flushing, nr_flushed, nr_discarding, nr_discarded; |
| 2444 | int nr_discard_cmd; |
| 2445 | unsigned int undiscard_blks; |
| 2446 | int inline_xattr, inline_inode, inline_dir, append, update, orphans; |
| 2447 | int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; |
Yunlei He | f83a258 | 2016-08-18 21:01:18 +0800 | [diff] [blame] | 2448 | unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2449 | unsigned int bimodal, avg_vblocks; |
| 2450 | int util_free, util_valid, util_invalid; |
| 2451 | int rsvd_segs, overp_segs; |
| 2452 | int dirty_count, node_pages, meta_pages; |
Jaegeuk Kim | 42190d2 | 2016-01-09 13:45:17 -0800 | [diff] [blame] | 2453 | int prefree_count, call_count, cp_count, bg_cp_count; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2454 | int tot_segs, node_segs, data_segs, free_segs, free_secs; |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2455 | int bg_node_segs, bg_data_segs; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2456 | int tot_blks, data_blks, node_blks; |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2457 | int bg_data_blks, bg_node_blks; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2458 | int curseg[NR_CURSEG_TYPE]; |
| 2459 | int cursec[NR_CURSEG_TYPE]; |
| 2460 | int curzone[NR_CURSEG_TYPE]; |
| 2461 | |
| 2462 | unsigned int segment_count[2]; |
| 2463 | unsigned int block_count[2]; |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 2464 | unsigned int inplace_count; |
Chao Yu | 9edcdab | 2015-09-11 14:43:52 +0800 | [diff] [blame] | 2465 | unsigned long long base_mem, cache_mem, page_mem; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2466 | }; |
| 2467 | |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2468 | static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) |
| 2469 | { |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 2470 | return (struct f2fs_stat_info *)sbi->stat_info; |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2471 | } |
| 2472 | |
Changman Lee | 942e0be | 2014-02-13 15:12:29 +0900 | [diff] [blame] | 2473 | #define stat_inc_cp_count(si) ((si)->cp_count++) |
Jaegeuk Kim | 42190d2 | 2016-01-09 13:45:17 -0800 | [diff] [blame] | 2474 | #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 2475 | #define stat_inc_call_count(si) ((si)->call_count++) |
| 2476 | #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 2477 | #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) |
| 2478 | #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 2479 | #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) |
| 2480 | #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) |
| 2481 | #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) |
| 2482 | #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) |
Chao Yu | d5e8f6c | 2015-07-15 17:28:53 +0800 | [diff] [blame] | 2483 | #define stat_inc_inline_xattr(inode) \ |
| 2484 | do { \ |
| 2485 | if (f2fs_has_inline_xattr(inode)) \ |
| 2486 | (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ |
| 2487 | } while (0) |
| 2488 | #define stat_dec_inline_xattr(inode) \ |
| 2489 | do { \ |
| 2490 | if (f2fs_has_inline_xattr(inode)) \ |
| 2491 | (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ |
| 2492 | } while (0) |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 2493 | #define stat_inc_inline_inode(inode) \ |
| 2494 | do { \ |
| 2495 | if (f2fs_has_inline_data(inode)) \ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 2496 | (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 2497 | } while (0) |
| 2498 | #define stat_dec_inline_inode(inode) \ |
| 2499 | do { \ |
| 2500 | if (f2fs_has_inline_data(inode)) \ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 2501 | (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 2502 | } while (0) |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 2503 | #define stat_inc_inline_dir(inode) \ |
| 2504 | do { \ |
| 2505 | if (f2fs_has_inline_dentry(inode)) \ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 2506 | (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 2507 | } while (0) |
| 2508 | #define stat_dec_inline_dir(inode) \ |
| 2509 | do { \ |
| 2510 | if (f2fs_has_inline_dentry(inode)) \ |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 2511 | (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 2512 | } while (0) |
Jaegeuk Kim | dcdfff6 | 2013-10-22 20:56:10 +0900 | [diff] [blame] | 2513 | #define stat_inc_seg_type(sbi, curseg) \ |
| 2514 | ((sbi)->segment_count[(curseg)->alloc_type]++) |
| 2515 | #define stat_inc_block_count(sbi, curseg) \ |
| 2516 | ((sbi)->block_count[(curseg)->alloc_type]++) |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 2517 | #define stat_inc_inplace_blocks(sbi) \ |
| 2518 | (atomic_inc(&(sbi)->inplace_count)) |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2519 | #define stat_inc_atomic_write(inode) \ |
| 2520 | (atomic_inc(&F2FS_I_SB(inode)->aw_cnt)) |
| 2521 | #define stat_dec_atomic_write(inode) \ |
| 2522 | (atomic_dec(&F2FS_I_SB(inode)->aw_cnt)) |
| 2523 | #define stat_update_max_atomic_write(inode) \ |
| 2524 | do { \ |
| 2525 | int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \ |
| 2526 | int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ |
| 2527 | if (cur > max) \ |
| 2528 | atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ |
| 2529 | } while (0) |
| 2530 | #define stat_inc_volatile_write(inode) \ |
| 2531 | (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) |
| 2532 | #define stat_dec_volatile_write(inode) \ |
| 2533 | (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) |
| 2534 | #define stat_update_max_volatile_write(inode) \ |
| 2535 | do { \ |
| 2536 | int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ |
| 2537 | int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ |
| 2538 | if (cur > max) \ |
| 2539 | atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ |
| 2540 | } while (0) |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2541 | #define stat_inc_seg_count(sbi, type, gc_type) \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2542 | do { \ |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2543 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2544 | si->tot_segs++; \ |
| 2545 | if ((type) == SUM_TYPE_DATA) { \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2546 | si->data_segs++; \ |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2547 | si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ |
| 2548 | } else { \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2549 | si->node_segs++; \ |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2550 | si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ |
| 2551 | } \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2552 | } while (0) |
| 2553 | |
| 2554 | #define stat_inc_tot_blk_count(si, blks) \ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2555 | ((si)->tot_blks += (blks)) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2556 | |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2557 | #define stat_inc_data_blk_count(sbi, blks, gc_type) \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2558 | do { \ |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2559 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2560 | stat_inc_tot_blk_count(si, blks); \ |
| 2561 | si->data_blks += (blks); \ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2562 | si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2563 | } while (0) |
| 2564 | |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 2565 | #define stat_inc_node_blk_count(sbi, blks, gc_type) \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2566 | do { \ |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 2567 | struct f2fs_stat_info *si = F2FS_STAT(sbi); \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2568 | stat_inc_tot_blk_count(si, blks); \ |
| 2569 | si->node_blks += (blks); \ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2570 | si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2571 | } while (0) |
| 2572 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2573 | int f2fs_build_stats(struct f2fs_sb_info *sbi); |
| 2574 | void f2fs_destroy_stats(struct f2fs_sb_info *sbi); |
Chao Yu | 787c7b8c | 2015-10-29 09:13:04 +0800 | [diff] [blame] | 2575 | int __init f2fs_create_root_stats(void); |
Namjae Jeon | 4589d25 | 2013-01-15 19:58:47 +0900 | [diff] [blame] | 2576 | void f2fs_destroy_root_stats(void); |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2577 | #else |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2578 | #define stat_inc_cp_count(si) do { } while (0) |
| 2579 | #define stat_inc_bg_cp_count(si) do { } while (0) |
| 2580 | #define stat_inc_call_count(si) do { } while (0) |
| 2581 | #define stat_inc_bggc_count(si) do { } while (0) |
| 2582 | #define stat_inc_dirty_inode(sbi, type) do { } while (0) |
| 2583 | #define stat_dec_dirty_inode(sbi, type) do { } while (0) |
| 2584 | #define stat_inc_total_hit(sb) do { } while (0) |
| 2585 | #define stat_inc_rbtree_node_hit(sb) do { } while (0) |
| 2586 | #define stat_inc_largest_node_hit(sbi) do { } while (0) |
| 2587 | #define stat_inc_cached_node_hit(sbi) do { } while (0) |
| 2588 | #define stat_inc_inline_xattr(inode) do { } while (0) |
| 2589 | #define stat_dec_inline_xattr(inode) do { } while (0) |
| 2590 | #define stat_inc_inline_inode(inode) do { } while (0) |
| 2591 | #define stat_dec_inline_inode(inode) do { } while (0) |
| 2592 | #define stat_inc_inline_dir(inode) do { } while (0) |
| 2593 | #define stat_dec_inline_dir(inode) do { } while (0) |
| 2594 | #define stat_inc_atomic_write(inode) do { } while (0) |
| 2595 | #define stat_dec_atomic_write(inode) do { } while (0) |
| 2596 | #define stat_update_max_atomic_write(inode) do { } while (0) |
| 2597 | #define stat_inc_volatile_write(inode) do { } while (0) |
| 2598 | #define stat_dec_volatile_write(inode) do { } while (0) |
| 2599 | #define stat_update_max_volatile_write(inode) do { } while (0) |
| 2600 | #define stat_inc_seg_type(sbi, curseg) do { } while (0) |
| 2601 | #define stat_inc_block_count(sbi, curseg) do { } while (0) |
| 2602 | #define stat_inc_inplace_blocks(sbi) do { } while (0) |
| 2603 | #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) |
| 2604 | #define stat_inc_tot_blk_count(si, blks) do { } while (0) |
| 2605 | #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) |
| 2606 | #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2607 | |
| 2608 | static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } |
| 2609 | static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } |
Chao Yu | 787c7b8c | 2015-10-29 09:13:04 +0800 | [diff] [blame] | 2610 | static inline int __init f2fs_create_root_stats(void) { return 0; } |
Namjae Jeon | 4589d25 | 2013-01-15 19:58:47 +0900 | [diff] [blame] | 2611 | static inline void f2fs_destroy_root_stats(void) { } |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2612 | #endif |
| 2613 | |
| 2614 | extern const struct file_operations f2fs_dir_operations; |
| 2615 | extern const struct file_operations f2fs_file_operations; |
| 2616 | extern const struct inode_operations f2fs_file_inode_operations; |
| 2617 | extern const struct address_space_operations f2fs_dblock_aops; |
| 2618 | extern const struct address_space_operations f2fs_node_aops; |
| 2619 | extern const struct address_space_operations f2fs_meta_aops; |
| 2620 | extern const struct inode_operations f2fs_dir_inode_operations; |
| 2621 | extern const struct inode_operations f2fs_symlink_inode_operations; |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 2622 | extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2623 | extern const struct inode_operations f2fs_special_inode_operations; |
Jaegeuk Kim | 29e7043 | 2015-02-10 16:23:12 -0800 | [diff] [blame] | 2624 | extern struct kmem_cache *inode_entry_slab; |
Huajun Li | 1001b34 | 2013-11-10 23:13:16 +0800 | [diff] [blame] | 2625 | |
Huajun Li | e18c65b | 2013-11-10 23:13:19 +0800 | [diff] [blame] | 2626 | /* |
| 2627 | * inline.c |
| 2628 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2629 | bool f2fs_may_inline_data(struct inode *inode); |
| 2630 | bool f2fs_may_inline_dentry(struct inode *inode); |
| 2631 | void read_inline_data(struct page *page, struct page *ipage); |
| 2632 | void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from); |
| 2633 | int f2fs_read_inline_data(struct inode *inode, struct page *page); |
| 2634 | int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); |
| 2635 | int f2fs_convert_inline_inode(struct inode *inode); |
| 2636 | int f2fs_write_inline_data(struct inode *inode, struct page *page); |
| 2637 | bool recover_inline_data(struct inode *inode, struct page *npage); |
| 2638 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir, |
| 2639 | struct fscrypt_name *fname, struct page **res_page); |
| 2640 | int make_empty_inline_dir(struct inode *inode, struct inode *parent, |
| 2641 | struct page *ipage); |
| 2642 | int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, |
| 2643 | const struct qstr *orig_name, |
| 2644 | struct inode *inode, nid_t ino, umode_t mode); |
| 2645 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page, |
| 2646 | struct inode *dir, struct inode *inode); |
| 2647 | bool f2fs_empty_inline_dir(struct inode *dir); |
| 2648 | int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, |
| 2649 | struct fscrypt_str *fstr); |
| 2650 | int f2fs_inline_data_fiemap(struct inode *inode, |
| 2651 | struct fiemap_extent_info *fieinfo, |
| 2652 | __u64 start, __u64 len); |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2653 | |
| 2654 | /* |
Jaegeuk Kim | 2658e50 | 2015-06-19 12:01:21 -0700 | [diff] [blame] | 2655 | * shrinker.c |
| 2656 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2657 | unsigned long f2fs_shrink_count(struct shrinker *shrink, |
| 2658 | struct shrink_control *sc); |
| 2659 | unsigned long f2fs_shrink_scan(struct shrinker *shrink, |
| 2660 | struct shrink_control *sc); |
| 2661 | void f2fs_join_shrinker(struct f2fs_sb_info *sbi); |
| 2662 | void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); |
Jaegeuk Kim | 2658e50 | 2015-06-19 12:01:21 -0700 | [diff] [blame] | 2663 | |
| 2664 | /* |
Chao Yu | a28ef1f | 2015-07-08 17:59:36 +0800 | [diff] [blame] | 2665 | * extent_cache.c |
| 2666 | */ |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2667 | struct rb_entry *__lookup_rb_tree(struct rb_root *root, |
| 2668 | struct rb_entry *cached_re, unsigned int ofs); |
| 2669 | struct rb_node **__lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, |
| 2670 | struct rb_root *root, struct rb_node **parent, |
| 2671 | unsigned int ofs); |
| 2672 | struct rb_entry *__lookup_rb_tree_ret(struct rb_root *root, |
| 2673 | struct rb_entry *cached_re, unsigned int ofs, |
| 2674 | struct rb_entry **prev_entry, struct rb_entry **next_entry, |
| 2675 | struct rb_node ***insert_p, struct rb_node **insert_parent, |
| 2676 | bool force); |
| 2677 | bool __check_rb_tree_consistence(struct f2fs_sb_info *sbi, |
| 2678 | struct rb_root *root); |
| 2679 | unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); |
| 2680 | bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext); |
| 2681 | void f2fs_drop_extent_tree(struct inode *inode); |
| 2682 | unsigned int f2fs_destroy_extent_node(struct inode *inode); |
| 2683 | void f2fs_destroy_extent_tree(struct inode *inode); |
| 2684 | bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, |
| 2685 | struct extent_info *ei); |
| 2686 | void f2fs_update_extent_cache(struct dnode_of_data *dn); |
Chao Yu | 19b2c30 | 2015-08-26 20:34:48 +0800 | [diff] [blame] | 2687 | void f2fs_update_extent_cache_range(struct dnode_of_data *dn, |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2688 | pgoff_t fofs, block_t blkaddr, unsigned int len); |
| 2689 | void init_extent_cache_info(struct f2fs_sb_info *sbi); |
Chao Yu | a28ef1f | 2015-07-08 17:59:36 +0800 | [diff] [blame] | 2690 | int __init create_extent_cache(void); |
| 2691 | void destroy_extent_cache(void); |
| 2692 | |
| 2693 | /* |
Chao Yu | 57fb30c | 2017-06-14 17:39:47 +0800 | [diff] [blame] | 2694 | * sysfs.c |
| 2695 | */ |
| 2696 | int __init f2fs_register_sysfs(void); |
| 2697 | void f2fs_unregister_sysfs(void); |
| 2698 | int f2fs_init_sysfs(struct f2fs_sb_info *sbi); |
| 2699 | void f2fs_exit_sysfs(struct f2fs_sb_info *sbi); |
| 2700 | |
| 2701 | /* |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2702 | * crypto support |
| 2703 | */ |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 2704 | static inline bool f2fs_encrypted_inode(struct inode *inode) |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2705 | { |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2706 | return file_is_encrypt(inode); |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2707 | } |
| 2708 | |
| 2709 | static inline void f2fs_set_encrypted_inode(struct inode *inode) |
| 2710 | { |
| 2711 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
| 2712 | file_set_encrypt(inode); |
| 2713 | #endif |
| 2714 | } |
| 2715 | |
| 2716 | static inline bool f2fs_bio_encrypted(struct bio *bio) |
| 2717 | { |
Jaegeuk Kim | 0b81d07 | 2015-05-15 16:26:10 -0700 | [diff] [blame] | 2718 | return bio->bi_private != NULL; |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2719 | } |
| 2720 | |
| 2721 | static inline int f2fs_sb_has_crypto(struct super_block *sb) |
| 2722 | { |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2723 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT); |
Jaegeuk Kim | cde4de1 | 2015-04-20 13:57:51 -0700 | [diff] [blame] | 2724 | } |
Jaegeuk Kim | f424f66 | 2015-04-20 15:19:06 -0700 | [diff] [blame] | 2725 | |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2726 | static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb) |
Jaegeuk Kim | 52763a4 | 2016-06-13 09:47:48 -0700 | [diff] [blame] | 2727 | { |
Jaegeuk Kim | e6b120d | 2017-07-10 12:55:09 -0700 | [diff] [blame] | 2728 | return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED); |
| 2729 | } |
| 2730 | |
| 2731 | #ifdef CONFIG_BLK_DEV_ZONED |
| 2732 | static inline int get_blkz_type(struct f2fs_sb_info *sbi, |
| 2733 | struct block_device *bdev, block_t blkaddr) |
| 2734 | { |
| 2735 | unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; |
| 2736 | int i; |
| 2737 | |
| 2738 | for (i = 0; i < sbi->s_ndevs; i++) |
| 2739 | if (FDEV(i).bdev == bdev) |
| 2740 | return FDEV(i).blkz_type[zno]; |
| 2741 | return -EINVAL; |
| 2742 | } |
| 2743 | #endif |
| 2744 | |
| 2745 | static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi) |
| 2746 | { |
| 2747 | struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev); |
| 2748 | |
| 2749 | return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb); |
Jaegeuk Kim | 52763a4 | 2016-06-13 09:47:48 -0700 | [diff] [blame] | 2750 | } |
| 2751 | |
| 2752 | static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) |
| 2753 | { |
| 2754 | clear_opt(sbi, ADAPTIVE); |
| 2755 | clear_opt(sbi, LFS); |
| 2756 | |
| 2757 | switch (mt) { |
| 2758 | case F2FS_MOUNT_ADAPTIVE: |
| 2759 | set_opt(sbi, ADAPTIVE); |
| 2760 | break; |
| 2761 | case F2FS_MOUNT_LFS: |
| 2762 | set_opt(sbi, LFS); |
| 2763 | break; |
| 2764 | } |
| 2765 | } |
| 2766 | |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 2767 | static inline bool f2fs_may_encrypt(struct inode *inode) |
| 2768 | { |
| 2769 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
Al Viro | 886f56f | 2015-12-05 03:56:06 -0500 | [diff] [blame] | 2770 | umode_t mode = inode->i_mode; |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 2771 | |
| 2772 | return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); |
| 2773 | #else |
| 2774 | return 0; |
| 2775 | #endif |
| 2776 | } |
| 2777 | |
Jaegeuk Kim | 39a53e0 | 2012-11-28 13:37:31 +0900 | [diff] [blame] | 2778 | #endif |