Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 1 | /* |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 2 | * fs/f2fs/inode.c |
| 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 | #include <linux/fs.h> |
| 12 | #include <linux/f2fs_fs.h> |
| 13 | #include <linux/buffer_head.h> |
| 14 | #include <linux/writeback.h> |
Zhang Zhen | 8abfb36 | 2014-04-15 14:19:38 +0800 | [diff] [blame] | 15 | #include <linux/bitops.h> |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 16 | |
| 17 | #include "f2fs.h" |
| 18 | #include "node.h" |
| 19 | |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 20 | #include <trace/events/f2fs.h> |
| 21 | |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 22 | void f2fs_set_inode_flags(struct inode *inode) |
| 23 | { |
| 24 | unsigned int flags = F2FS_I(inode)->i_flags; |
Zhang Zhen | 8abfb36 | 2014-04-15 14:19:38 +0800 | [diff] [blame] | 25 | unsigned int new_fl = 0; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 26 | |
| 27 | if (flags & FS_SYNC_FL) |
Zhang Zhen | 8abfb36 | 2014-04-15 14:19:38 +0800 | [diff] [blame] | 28 | new_fl |= S_SYNC; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 29 | if (flags & FS_APPEND_FL) |
Zhang Zhen | 8abfb36 | 2014-04-15 14:19:38 +0800 | [diff] [blame] | 30 | new_fl |= S_APPEND; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 31 | if (flags & FS_IMMUTABLE_FL) |
Zhang Zhen | 8abfb36 | 2014-04-15 14:19:38 +0800 | [diff] [blame] | 32 | new_fl |= S_IMMUTABLE; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 33 | if (flags & FS_NOATIME_FL) |
Zhang Zhen | 8abfb36 | 2014-04-15 14:19:38 +0800 | [diff] [blame] | 34 | new_fl |= S_NOATIME; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 35 | if (flags & FS_DIRSYNC_FL) |
Zhang Zhen | 8abfb36 | 2014-04-15 14:19:38 +0800 | [diff] [blame] | 36 | new_fl |= S_DIRSYNC; |
| 37 | set_mask_bits(&inode->i_flags, |
| 38 | S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC, new_fl); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 39 | } |
| 40 | |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 41 | static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri) |
| 42 | { |
| 43 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || |
| 44 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { |
| 45 | if (ri->i_addr[0]) |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 46 | inode->i_rdev = |
| 47 | old_decode_dev(le32_to_cpu(ri->i_addr[0])); |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 48 | else |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 49 | inode->i_rdev = |
| 50 | new_decode_dev(le32_to_cpu(ri->i_addr[1])); |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 51 | } |
| 52 | } |
| 53 | |
| 54 | static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) |
| 55 | { |
| 56 | if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { |
| 57 | if (old_valid_dev(inode->i_rdev)) { |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 58 | ri->i_addr[0] = |
| 59 | cpu_to_le32(old_encode_dev(inode->i_rdev)); |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 60 | ri->i_addr[1] = 0; |
| 61 | } else { |
| 62 | ri->i_addr[0] = 0; |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 63 | ri->i_addr[1] = |
| 64 | cpu_to_le32(new_encode_dev(inode->i_rdev)); |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 65 | ri->i_addr[2] = 0; |
| 66 | } |
| 67 | } |
| 68 | } |
| 69 | |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 70 | static int __recover_inline_status(struct inode *inode, struct page *ipage) |
| 71 | { |
| 72 | void *inline_data = inline_data_addr(ipage); |
| 73 | struct f2fs_inode *ri; |
| 74 | void *zbuf; |
| 75 | |
| 76 | zbuf = kzalloc(MAX_INLINE_DATA, GFP_NOFS); |
| 77 | if (!zbuf) |
| 78 | return -ENOMEM; |
| 79 | |
| 80 | if (!memcmp(zbuf, inline_data, MAX_INLINE_DATA)) { |
| 81 | kfree(zbuf); |
| 82 | return 0; |
| 83 | } |
| 84 | kfree(zbuf); |
| 85 | |
| 86 | f2fs_wait_on_page_writeback(ipage, NODE); |
| 87 | set_inode_flag(F2FS_I(inode), FI_DATA_EXIST); |
| 88 | |
| 89 | ri = F2FS_INODE(ipage); |
| 90 | set_raw_inline(F2FS_I(inode), ri); |
| 91 | set_page_dirty(ipage); |
| 92 | return 0; |
| 93 | } |
| 94 | |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 95 | static int do_read_inode(struct inode *inode) |
| 96 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 97 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 98 | struct f2fs_inode_info *fi = F2FS_I(inode); |
| 99 | struct page *node_page; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 100 | struct f2fs_inode *ri; |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 101 | int err = 0; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 102 | |
| 103 | /* Check if ino is within scope */ |
Namjae Jeon | 064e082 | 2013-03-17 17:27:20 +0900 | [diff] [blame] | 104 | if (check_nid_range(sbi, inode->i_ino)) { |
| 105 | f2fs_msg(inode->i_sb, KERN_ERR, "bad inode number: %lu", |
| 106 | (unsigned long) inode->i_ino); |
Chao Yu | d6b7d4b | 2014-06-12 13:23:41 +0800 | [diff] [blame] | 107 | WARN_ON(1); |
Namjae Jeon | 064e082 | 2013-03-17 17:27:20 +0900 | [diff] [blame] | 108 | return -EINVAL; |
| 109 | } |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 110 | |
| 111 | node_page = get_node_page(sbi, inode->i_ino); |
| 112 | if (IS_ERR(node_page)) |
| 113 | return PTR_ERR(node_page); |
| 114 | |
Jaegeuk Kim | 58bfaf4 | 2013-12-26 16:30:41 +0900 | [diff] [blame] | 115 | ri = F2FS_INODE(node_page); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 116 | |
| 117 | inode->i_mode = le16_to_cpu(ri->i_mode); |
| 118 | i_uid_write(inode, le32_to_cpu(ri->i_uid)); |
| 119 | i_gid_write(inode, le32_to_cpu(ri->i_gid)); |
| 120 | set_nlink(inode, le32_to_cpu(ri->i_links)); |
| 121 | inode->i_size = le64_to_cpu(ri->i_size); |
| 122 | inode->i_blocks = le64_to_cpu(ri->i_blocks); |
| 123 | |
| 124 | inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); |
| 125 | inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); |
| 126 | inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); |
| 127 | inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); |
| 128 | inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); |
| 129 | inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); |
| 130 | inode->i_generation = le32_to_cpu(ri->i_generation); |
| 131 | |
| 132 | fi->i_current_depth = le32_to_cpu(ri->i_current_depth); |
| 133 | fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); |
| 134 | fi->i_flags = le32_to_cpu(ri->i_flags); |
| 135 | fi->flags = 0; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 136 | fi->i_advise = ri->i_advise; |
Jaegeuk Kim | 6666e6a | 2012-12-10 17:52:48 +0900 | [diff] [blame] | 137 | fi->i_pino = le32_to_cpu(ri->i_pino); |
Jaegeuk Kim | 3843154 | 2014-02-27 18:20:00 +0900 | [diff] [blame] | 138 | fi->i_dir_level = ri->i_dir_level; |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 139 | |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 140 | get_extent_info(&fi->ext, ri->i_ext); |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 141 | get_inline_info(fi, ri); |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 142 | |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 143 | /* check data exist */ |
| 144 | if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) |
| 145 | err = __recover_inline_status(inode, node_page); |
| 146 | |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 147 | /* get rdev by using inline_info */ |
| 148 | __get_inode_rdev(inode, ri); |
| 149 | |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 150 | f2fs_put_page(node_page, 1); |
Jaegeuk Kim | 9d1015d | 2014-12-05 10:51:50 -0800 | [diff] [blame] | 151 | |
| 152 | stat_inc_inline_inode(inode); |
| 153 | stat_inc_inline_dir(inode); |
| 154 | |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 155 | return err; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) |
| 159 | { |
| 160 | struct f2fs_sb_info *sbi = F2FS_SB(sb); |
| 161 | struct inode *inode; |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 162 | int ret = 0; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 163 | |
| 164 | inode = iget_locked(sb, ino); |
| 165 | if (!inode) |
| 166 | return ERR_PTR(-ENOMEM); |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 167 | |
| 168 | if (!(inode->i_state & I_NEW)) { |
| 169 | trace_f2fs_iget(inode); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 170 | return inode; |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 171 | } |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 172 | if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) |
| 173 | goto make_now; |
| 174 | |
| 175 | ret = do_read_inode(inode); |
| 176 | if (ret) |
| 177 | goto bad_inode; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 178 | make_now: |
| 179 | if (ino == F2FS_NODE_INO(sbi)) { |
| 180 | inode->i_mapping->a_ops = &f2fs_node_aops; |
| 181 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO); |
| 182 | } else if (ino == F2FS_META_INO(sbi)) { |
| 183 | inode->i_mapping->a_ops = &f2fs_meta_aops; |
| 184 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO); |
| 185 | } else if (S_ISREG(inode->i_mode)) { |
| 186 | inode->i_op = &f2fs_file_inode_operations; |
| 187 | inode->i_fop = &f2fs_file_operations; |
| 188 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
| 189 | } else if (S_ISDIR(inode->i_mode)) { |
| 190 | inode->i_op = &f2fs_dir_inode_operations; |
| 191 | inode->i_fop = &f2fs_dir_operations; |
| 192 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
Jaegeuk Kim | a78186e | 2014-10-17 17:57:29 -0700 | [diff] [blame] | 193 | mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_HIGH_ZERO); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 194 | } else if (S_ISLNK(inode->i_mode)) { |
| 195 | inode->i_op = &f2fs_symlink_inode_operations; |
| 196 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
| 197 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || |
| 198 | S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { |
| 199 | inode->i_op = &f2fs_special_inode_operations; |
| 200 | init_special_inode(inode, inode->i_mode, inode->i_rdev); |
| 201 | } else { |
| 202 | ret = -EIO; |
| 203 | goto bad_inode; |
| 204 | } |
| 205 | unlock_new_inode(inode); |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 206 | trace_f2fs_iget(inode); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 207 | return inode; |
| 208 | |
| 209 | bad_inode: |
| 210 | iget_failed(inode); |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 211 | trace_f2fs_iget_exit(inode, ret); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 212 | return ERR_PTR(ret); |
| 213 | } |
| 214 | |
| 215 | void update_inode(struct inode *inode, struct page *node_page) |
| 216 | { |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 217 | struct f2fs_inode *ri; |
| 218 | |
Yuan Zhong | 5514f0a | 2014-01-10 07:26:14 +0000 | [diff] [blame] | 219 | f2fs_wait_on_page_writeback(node_page, NODE); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 220 | |
Jaegeuk Kim | 58bfaf4 | 2013-12-26 16:30:41 +0900 | [diff] [blame] | 221 | ri = F2FS_INODE(node_page); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 222 | |
| 223 | ri->i_mode = cpu_to_le16(inode->i_mode); |
| 224 | ri->i_advise = F2FS_I(inode)->i_advise; |
| 225 | ri->i_uid = cpu_to_le32(i_uid_read(inode)); |
| 226 | ri->i_gid = cpu_to_le32(i_gid_read(inode)); |
| 227 | ri->i_links = cpu_to_le32(inode->i_nlink); |
| 228 | ri->i_size = cpu_to_le64(i_size_read(inode)); |
| 229 | ri->i_blocks = cpu_to_le64(inode->i_blocks); |
| 230 | set_raw_extent(&F2FS_I(inode)->ext, &ri->i_ext); |
Jaegeuk Kim | 444c580 | 2013-08-08 15:16:22 +0900 | [diff] [blame] | 231 | set_raw_inline(F2FS_I(inode), ri); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 232 | |
| 233 | ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); |
| 234 | ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); |
| 235 | ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); |
| 236 | ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); |
| 237 | ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); |
| 238 | ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); |
| 239 | ri->i_current_depth = cpu_to_le32(F2FS_I(inode)->i_current_depth); |
| 240 | ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); |
| 241 | ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); |
Jaegeuk Kim | 6666e6a | 2012-12-10 17:52:48 +0900 | [diff] [blame] | 242 | ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 243 | ri->i_generation = cpu_to_le32(inode->i_generation); |
Jaegeuk Kim | 3843154 | 2014-02-27 18:20:00 +0900 | [diff] [blame] | 244 | ri->i_dir_level = F2FS_I(inode)->i_dir_level; |
Changman Lee | 7d79e75 | 2013-01-23 09:40:23 +0900 | [diff] [blame] | 245 | |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 246 | __set_inode_rdev(inode, ri); |
Jaegeuk Kim | 398b1ac | 2012-12-19 15:28:39 +0900 | [diff] [blame] | 247 | set_cold_node(inode, node_page); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 248 | set_page_dirty(node_page); |
Jaegeuk Kim | 3d1e380 | 2013-10-08 18:01:51 +0900 | [diff] [blame] | 249 | |
Jaegeuk Kim | b378387 | 2013-06-10 09:17:01 +0900 | [diff] [blame] | 250 | clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 251 | } |
| 252 | |
Jaegeuk Kim | 744602c | 2014-01-24 09:42:16 +0900 | [diff] [blame] | 253 | void update_inode_page(struct inode *inode) |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 254 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 255 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 256 | struct page *node_page; |
Jaegeuk Kim | 744602c | 2014-01-24 09:42:16 +0900 | [diff] [blame] | 257 | retry: |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 258 | node_page = get_node_page(sbi, inode->i_ino); |
Jaegeuk Kim | 744602c | 2014-01-24 09:42:16 +0900 | [diff] [blame] | 259 | if (IS_ERR(node_page)) { |
| 260 | int err = PTR_ERR(node_page); |
| 261 | if (err == -ENOMEM) { |
| 262 | cond_resched(); |
| 263 | goto retry; |
| 264 | } else if (err != -ENOENT) { |
| 265 | f2fs_stop_checkpoint(sbi); |
| 266 | } |
| 267 | return; |
| 268 | } |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 269 | update_inode(inode, node_page); |
| 270 | f2fs_put_page(node_page, 1); |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) |
| 274 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 275 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 276 | |
| 277 | if (inode->i_ino == F2FS_NODE_INO(sbi) || |
| 278 | inode->i_ino == F2FS_META_INO(sbi)) |
| 279 | return 0; |
| 280 | |
Jaegeuk Kim | b378387 | 2013-06-10 09:17:01 +0900 | [diff] [blame] | 281 | if (!is_inode_flag_set(F2FS_I(inode), FI_DIRTY_INODE)) |
| 282 | return 0; |
| 283 | |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 284 | /* |
| 285 | * We need to lock here to prevent from producing dirty node pages |
| 286 | * during the urgent cleaning time when runing out of free sections. |
| 287 | */ |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 288 | f2fs_lock_op(sbi); |
Jaegeuk Kim | 744602c | 2014-01-24 09:42:16 +0900 | [diff] [blame] | 289 | update_inode_page(inode); |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 290 | f2fs_unlock_op(sbi); |
Jin Xu | 92c4342 | 2013-08-15 19:17:01 +0800 | [diff] [blame] | 291 | |
| 292 | if (wbc) |
| 293 | f2fs_balance_fs(sbi); |
| 294 | |
Jaegeuk Kim | 744602c | 2014-01-24 09:42:16 +0900 | [diff] [blame] | 295 | return 0; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 296 | } |
| 297 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 298 | /* |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 299 | * Called at the last iput() if i_nlink is zero |
| 300 | */ |
| 301 | void f2fs_evict_inode(struct inode *inode) |
| 302 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 303 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
Chao Yu | 002a41c | 2014-08-04 09:54:58 +0800 | [diff] [blame] | 304 | nid_t xnid = F2FS_I(inode)->i_xattr_nid; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 305 | |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 306 | /* some remained atomic pages should discarded */ |
Jaegeuk Kim | 02a1335 | 2014-10-06 16:11:16 -0700 | [diff] [blame] | 307 | if (f2fs_is_atomic_file(inode) || f2fs_is_volatile_file(inode)) |
Jaegeuk Kim | 88b88a6 | 2014-10-06 17:39:50 -0700 | [diff] [blame] | 308 | commit_inmem_pages(inode, true); |
| 309 | |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 310 | trace_f2fs_evict_inode(inode); |
Johannes Weiner | 91b0abe | 2014-04-03 14:47:49 -0700 | [diff] [blame] | 311 | truncate_inode_pages_final(&inode->i_data); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 312 | |
| 313 | if (inode->i_ino == F2FS_NODE_INO(sbi) || |
| 314 | inode->i_ino == F2FS_META_INO(sbi)) |
Chao Yu | dbf20cb | 2014-07-25 12:00:57 +0800 | [diff] [blame] | 315 | goto out_clear; |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 316 | |
Jaegeuk Kim | a7ffdbe | 2014-09-12 15:53:45 -0700 | [diff] [blame] | 317 | f2fs_bug_on(sbi, get_dirty_pages(inode)); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 318 | remove_dirty_dir_inode(inode); |
| 319 | |
| 320 | if (inode->i_nlink || is_bad_inode(inode)) |
| 321 | goto no_delete; |
| 322 | |
Changman Lee | d6212a5 | 2013-01-29 18:30:07 +0900 | [diff] [blame] | 323 | sb_start_intwrite(inode->i_sb); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 324 | set_inode_flag(F2FS_I(inode), FI_NO_ALLOC); |
| 325 | i_size_write(inode, 0); |
| 326 | |
| 327 | if (F2FS_HAS_BLOCKS(inode)) |
| 328 | f2fs_truncate(inode); |
| 329 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 330 | f2fs_lock_op(sbi); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 331 | remove_inode_page(inode); |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 332 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 3993683 | 2012-11-22 16:21:29 +0900 | [diff] [blame] | 333 | |
Changman Lee | d6212a5 | 2013-01-29 18:30:07 +0900 | [diff] [blame] | 334 | sb_end_intwrite(inode->i_sb); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 335 | no_delete: |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 336 | stat_dec_inline_dir(inode); |
Jaegeuk Kim | e7a2bf2 | 2014-10-14 10:29:50 -0700 | [diff] [blame] | 337 | stat_dec_inline_inode(inode); |
Jaegeuk Kim | 8198899 | 2014-04-30 15:04:39 +0900 | [diff] [blame] | 338 | invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, inode->i_ino); |
Chao Yu | 002a41c | 2014-08-04 09:54:58 +0800 | [diff] [blame] | 339 | if (xnid) |
| 340 | invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); |
Jaegeuk Kim | fff04f9 | 2014-07-25 07:40:59 -0700 | [diff] [blame] | 341 | if (is_inode_flag_set(F2FS_I(inode), FI_APPEND_WRITE)) |
| 342 | add_dirty_inode(sbi, inode->i_ino, APPEND_INO); |
| 343 | if (is_inode_flag_set(F2FS_I(inode), FI_UPDATE_WRITE)) |
| 344 | add_dirty_inode(sbi, inode->i_ino, UPDATE_INO); |
Chao Yu | dbf20cb | 2014-07-25 12:00:57 +0800 | [diff] [blame] | 345 | out_clear: |
| 346 | clear_inode(inode); |
Jaegeuk Kim | 19f99ce | 2012-11-02 17:10:40 +0900 | [diff] [blame] | 347 | } |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 348 | |
| 349 | /* caller should call f2fs_lock_op() */ |
| 350 | void handle_failed_inode(struct inode *inode) |
| 351 | { |
| 352 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
| 353 | |
| 354 | clear_nlink(inode); |
| 355 | make_bad_inode(inode); |
| 356 | unlock_new_inode(inode); |
| 357 | |
| 358 | i_size_write(inode, 0); |
| 359 | if (F2FS_HAS_BLOCKS(inode)) |
| 360 | f2fs_truncate(inode); |
| 361 | |
| 362 | remove_inode_page(inode); |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 363 | |
Jaegeuk Kim | b3d208f | 2014-10-23 19:48:09 -0700 | [diff] [blame] | 364 | clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA); |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 365 | clear_inode_flag(F2FS_I(inode), FI_INLINE_DENTRY); |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 366 | alloc_nid_failed(sbi, inode->i_ino); |
| 367 | f2fs_unlock_op(sbi); |
| 368 | |
| 369 | /* iput will drop the inode object */ |
| 370 | iput(inode); |
| 371 | } |