Chao Yu | 7c1a000 | 2018-09-12 09:16:07 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 2 | /* |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 3 | * fs/f2fs/namei.c |
| 4 | * |
| 5 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. |
| 6 | * http://www.samsung.com/ |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 7 | */ |
| 8 | #include <linux/fs.h> |
| 9 | #include <linux/f2fs_fs.h> |
| 10 | #include <linux/pagemap.h> |
| 11 | #include <linux/sched.h> |
| 12 | #include <linux/ctype.h> |
Jaegeuk Kim | 428e3bc | 2019-02-25 09:46:45 -0800 | [diff] [blame] | 13 | #include <linux/random.h> |
Chao Yu | 50732df | 2014-06-19 16:23:19 +0800 | [diff] [blame] | 14 | #include <linux/dcache.h> |
Jaegeuk Kim | feb7cbb | 2015-04-15 13:49:55 -0700 | [diff] [blame] | 15 | #include <linux/namei.h> |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 16 | #include <linux/quotaops.h> |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 17 | |
| 18 | #include "f2fs.h" |
Jaegeuk Kim | 953a3e2 | 2013-03-21 15:21:57 +0900 | [diff] [blame] | 19 | #include "node.h" |
Daniel Rosenberg | 4354994 | 2018-08-20 19:21:43 -0700 | [diff] [blame] | 20 | #include "segment.h" |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 21 | #include "xattr.h" |
| 22 | #include "acl.h" |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 23 | #include <trace/events/f2fs.h> |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 24 | |
Yangtao Li | c0abbdf | 2023-03-19 15:58:22 +0800 | [diff] [blame] | 25 | static inline bool is_extension_exist(const unsigned char *s, const char *sub, |
Jaegeuk Kim | 2724daf6 | 2023-06-06 10:17:47 -0700 | [diff] [blame] | 26 | bool tmp_ext, bool tmp_dot) |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 27 | { |
| 28 | size_t slen = strlen(s); |
| 29 | size_t sublen = strlen(sub); |
| 30 | int i; |
| 31 | |
| 32 | if (sublen == 1 && *sub == '*') |
Yangtao Li | c0abbdf | 2023-03-19 15:58:22 +0800 | [diff] [blame] | 33 | return true; |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 34 | |
| 35 | /* |
| 36 | * filename format of multimedia file should be defined as: |
| 37 | * "filename + '.' + extension + (optional: '.' + temp extension)". |
| 38 | */ |
| 39 | if (slen < sublen + 2) |
Yangtao Li | c0abbdf | 2023-03-19 15:58:22 +0800 | [diff] [blame] | 40 | return false; |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 41 | |
| 42 | if (!tmp_ext) { |
| 43 | /* file has no temp extension */ |
| 44 | if (s[slen - sublen - 1] != '.') |
Yangtao Li | c0abbdf | 2023-03-19 15:58:22 +0800 | [diff] [blame] | 45 | return false; |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 46 | return !strncasecmp(s + slen - sublen, sub, sublen); |
| 47 | } |
| 48 | |
| 49 | for (i = 1; i < slen - sublen; i++) { |
| 50 | if (s[i] != '.') |
| 51 | continue; |
Jaegeuk Kim | 2724daf6 | 2023-06-06 10:17:47 -0700 | [diff] [blame] | 52 | if (!strncasecmp(s + i + 1, sub, sublen)) { |
| 53 | if (!tmp_dot) |
| 54 | return true; |
| 55 | if (i == slen - sublen - 1 || s[i + 1 + sublen] == '.') |
| 56 | return true; |
| 57 | } |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 58 | } |
| 59 | |
Yangtao Li | c0abbdf | 2023-03-19 15:58:22 +0800 | [diff] [blame] | 60 | return false; |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 61 | } |
| 62 | |
Jaegeuk Kim | 2724daf6 | 2023-06-06 10:17:47 -0700 | [diff] [blame] | 63 | static inline bool is_temperature_extension(const unsigned char *s, const char *sub) |
| 64 | { |
| 65 | return is_extension_exist(s, sub, true, false); |
| 66 | } |
| 67 | |
| 68 | static inline bool is_compress_extension(const unsigned char *s, const char *sub) |
| 69 | { |
| 70 | return is_extension_exist(s, sub, true, true); |
| 71 | } |
| 72 | |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 73 | int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, |
| 74 | bool hot, bool set) |
| 75 | { |
| 76 | __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; |
| 77 | int cold_count = le32_to_cpu(sbi->raw_super->extension_count); |
| 78 | int hot_count = sbi->raw_super->hot_ext_count; |
| 79 | int total_count = cold_count + hot_count; |
| 80 | int start, count; |
| 81 | int i; |
| 82 | |
| 83 | if (set) { |
| 84 | if (total_count == F2FS_MAX_EXTENSION) |
| 85 | return -EINVAL; |
| 86 | } else { |
| 87 | if (!hot && !cold_count) |
| 88 | return -EINVAL; |
| 89 | if (hot && !hot_count) |
| 90 | return -EINVAL; |
| 91 | } |
| 92 | |
| 93 | if (hot) { |
| 94 | start = cold_count; |
| 95 | count = total_count; |
| 96 | } else { |
| 97 | start = 0; |
| 98 | count = cold_count; |
| 99 | } |
| 100 | |
| 101 | for (i = start; i < count; i++) { |
| 102 | if (strcmp(name, extlist[i])) |
| 103 | continue; |
| 104 | |
| 105 | if (set) |
| 106 | return -EINVAL; |
| 107 | |
| 108 | memcpy(extlist[i], extlist[i + 1], |
| 109 | F2FS_EXTENSION_LEN * (total_count - i - 1)); |
| 110 | memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN); |
| 111 | if (hot) |
| 112 | sbi->raw_super->hot_ext_count = hot_count - 1; |
| 113 | else |
| 114 | sbi->raw_super->extension_count = |
| 115 | cpu_to_le32(cold_count - 1); |
| 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | if (!set) |
| 120 | return -EINVAL; |
| 121 | |
| 122 | if (hot) { |
| 123 | memcpy(extlist[count], name, strlen(name)); |
| 124 | sbi->raw_super->hot_ext_count = hot_count + 1; |
| 125 | } else { |
| 126 | char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN]; |
| 127 | |
| 128 | memcpy(buf, &extlist[cold_count], |
| 129 | F2FS_EXTENSION_LEN * hot_count); |
| 130 | memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN); |
| 131 | memcpy(extlist[cold_count], name, strlen(name)); |
| 132 | memcpy(&extlist[cold_count + 1], buf, |
| 133 | F2FS_EXTENSION_LEN * hot_count); |
| 134 | sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1); |
| 135 | } |
| 136 | return 0; |
| 137 | } |
| 138 | |
| 139 | static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir, |
| 140 | struct inode *inode, const unsigned char *name) |
| 141 | { |
| 142 | __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; |
| 143 | unsigned char (*noext)[F2FS_EXTENSION_LEN] = |
| 144 | F2FS_OPTION(sbi).noextensions; |
| 145 | unsigned char (*ext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).extensions; |
| 146 | unsigned char ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt; |
| 147 | unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt; |
| 148 | int i, cold_count, hot_count; |
| 149 | |
| 150 | if (!f2fs_sb_has_compression(sbi)) |
| 151 | return; |
| 152 | |
| 153 | if (S_ISDIR(inode->i_mode)) |
| 154 | goto inherit_comp; |
| 155 | |
| 156 | /* This name comes only from normal files. */ |
| 157 | if (!name) |
| 158 | return; |
| 159 | |
| 160 | /* Don't compress hot files. */ |
| 161 | f2fs_down_read(&sbi->sb_lock); |
| 162 | cold_count = le32_to_cpu(sbi->raw_super->extension_count); |
| 163 | hot_count = sbi->raw_super->hot_ext_count; |
| 164 | for (i = cold_count; i < cold_count + hot_count; i++) |
Jaegeuk Kim | 2724daf6 | 2023-06-06 10:17:47 -0700 | [diff] [blame] | 165 | if (is_temperature_extension(name, extlist[i])) |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 166 | break; |
| 167 | f2fs_up_read(&sbi->sb_lock); |
| 168 | if (i < (cold_count + hot_count)) |
| 169 | return; |
| 170 | |
| 171 | /* Don't compress unallowed extension. */ |
| 172 | for (i = 0; i < noext_cnt; i++) |
Jaegeuk Kim | 2724daf6 | 2023-06-06 10:17:47 -0700 | [diff] [blame] | 173 | if (is_compress_extension(name, noext[i])) |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 174 | return; |
| 175 | |
| 176 | /* Compress wanting extension. */ |
| 177 | for (i = 0; i < ext_cnt; i++) { |
Jaegeuk Kim | 2724daf6 | 2023-06-06 10:17:47 -0700 | [diff] [blame] | 178 | if (is_compress_extension(name, ext[i])) { |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 179 | set_compress_context(inode); |
| 180 | return; |
| 181 | } |
| 182 | } |
| 183 | inherit_comp: |
| 184 | /* Inherit the {no-}compression flag in directory */ |
| 185 | if (F2FS_I(dir)->i_flags & F2FS_NOCOMP_FL) { |
| 186 | F2FS_I(inode)->i_flags |= F2FS_NOCOMP_FL; |
| 187 | f2fs_mark_inode_dirty_sync(inode, true); |
| 188 | } else if (F2FS_I(dir)->i_flags & F2FS_COMPR_FL) { |
| 189 | set_compress_context(inode); |
| 190 | } |
| 191 | } |
| 192 | |
Sheng Yong | b16bcaa | 2022-11-11 18:08:30 +0800 | [diff] [blame] | 193 | /* |
| 194 | * Set file's temperature for hot/cold data separation |
| 195 | */ |
| 196 | static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode, |
| 197 | const unsigned char *name) |
| 198 | { |
| 199 | __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; |
| 200 | int i, cold_count, hot_count; |
| 201 | |
| 202 | f2fs_down_read(&sbi->sb_lock); |
| 203 | cold_count = le32_to_cpu(sbi->raw_super->extension_count); |
| 204 | hot_count = sbi->raw_super->hot_ext_count; |
| 205 | for (i = 0; i < cold_count + hot_count; i++) |
Jaegeuk Kim | 2724daf6 | 2023-06-06 10:17:47 -0700 | [diff] [blame] | 206 | if (is_temperature_extension(name, extlist[i])) |
Sheng Yong | b16bcaa | 2022-11-11 18:08:30 +0800 | [diff] [blame] | 207 | break; |
| 208 | f2fs_up_read(&sbi->sb_lock); |
| 209 | |
| 210 | if (i == cold_count + hot_count) |
| 211 | return; |
| 212 | |
| 213 | if (i < cold_count) |
| 214 | file_set_cold(inode); |
| 215 | else |
| 216 | file_set_hot(inode); |
| 217 | } |
| 218 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 219 | static struct inode *f2fs_new_inode(struct mnt_idmap *idmap, |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 220 | struct inode *dir, umode_t mode, |
| 221 | const char *name) |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 222 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 223 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 224 | nid_t ino; |
| 225 | struct inode *inode; |
| 226 | bool nid_free = false; |
Eric Biggers | e075b69 | 2020-09-16 21:11:27 -0700 | [diff] [blame] | 227 | bool encrypt = false; |
Chao Yu | 6afc662 | 2017-09-06 21:59:50 +0800 | [diff] [blame] | 228 | int xattr_size = 0; |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 229 | int err; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 230 | |
Jaegeuk Kim | a014e03 | 2014-06-20 21:44:02 -0700 | [diff] [blame] | 231 | inode = new_inode(dir->i_sb); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 232 | if (!inode) |
| 233 | return ERR_PTR(-ENOMEM); |
| 234 | |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 235 | if (!f2fs_alloc_nid(sbi, &ino)) { |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 236 | err = -ENOSPC; |
| 237 | goto fail; |
| 238 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 239 | |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 240 | nid_free = true; |
| 241 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 242 | inode_init_owner(idmap, inode, dir, mode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 243 | |
| 244 | inode->i_ino = ino; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 245 | inode->i_blocks = 0; |
Jeff Layton | 11cc642 | 2023-10-04 14:52:21 -0400 | [diff] [blame] | 246 | simple_inode_init_ts(inode); |
| 247 | F2FS_I(inode)->i_crtime = inode_get_mtime(inode); |
Jason A. Donenfeld | a251c17 | 2022-10-05 17:43:22 +0200 | [diff] [blame] | 248 | inode->i_generation = get_random_u32(); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 249 | |
Chao Yu | 1c41e680 | 2018-05-07 20:28:52 +0800 | [diff] [blame] | 250 | if (S_ISDIR(inode->i_mode)) |
| 251 | F2FS_I(inode)->i_current_depth = 1; |
| 252 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 253 | err = insert_inode_locked(inode); |
| 254 | if (err) { |
| 255 | err = -EINVAL; |
Jaegeuk Kim | a21c20f | 2015-08-16 12:38:15 -0700 | [diff] [blame] | 256 | goto fail; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 257 | } |
Chao Yu | 622f28a | 2014-09-24 18:19:10 +0800 | [diff] [blame] | 258 | |
Chao Yu | 7beb01f | 2018-10-24 18:34:26 +0800 | [diff] [blame] | 259 | if (f2fs_sb_has_project_quota(sbi) && |
Chao Yu | 59c8440 | 2018-04-03 15:08:17 +0800 | [diff] [blame] | 260 | (F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL)) |
Chao Yu | 5c57132 | 2017-07-26 00:01:41 +0800 | [diff] [blame] | 261 | F2FS_I(inode)->i_projid = F2FS_I(dir)->i_projid; |
| 262 | else |
Christian Brauner | 64b4cdf | 2023-01-13 12:49:09 +0100 | [diff] [blame] | 263 | F2FS_I(inode)->i_projid = make_kprojid(&init_user_ns, |
Chao Yu | 5c57132 | 2017-07-26 00:01:41 +0800 | [diff] [blame] | 264 | F2FS_DEF_PROJID); |
| 265 | |
Eric Biggers | e075b69 | 2020-09-16 21:11:27 -0700 | [diff] [blame] | 266 | err = fscrypt_prepare_new_inode(dir, inode, &encrypt); |
| 267 | if (err) |
| 268 | goto fail_drop; |
| 269 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 270 | err = f2fs_dquot_initialize(inode); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 271 | if (err) |
| 272 | goto fail_drop; |
| 273 | |
Daeho Jeong | 9ac1e2d | 2018-01-11 11:26:19 +0900 | [diff] [blame] | 274 | set_inode_flag(inode, FI_NEW_INODE); |
| 275 | |
Eric Biggers | e075b69 | 2020-09-16 21:11:27 -0700 | [diff] [blame] | 276 | if (encrypt) |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 277 | f2fs_set_encrypted_inode(inode); |
| 278 | |
Chao Yu | 7beb01f | 2018-10-24 18:34:26 +0800 | [diff] [blame] | 279 | if (f2fs_sb_has_extra_attr(sbi)) { |
Chao Yu | 7a2af76 | 2017-07-19 00:19:06 +0800 | [diff] [blame] | 280 | set_inode_flag(inode, FI_EXTRA_ATTR); |
| 281 | F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE; |
| 282 | } |
| 283 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 284 | if (test_opt(sbi, INLINE_XATTR)) |
| 285 | set_inode_flag(inode, FI_INLINE_XATTR); |
Chao Yu | 6afc662 | 2017-09-06 21:59:50 +0800 | [diff] [blame] | 286 | |
Jaegeuk Kim | 01b960e | 2015-04-23 10:27:21 -0700 | [diff] [blame] | 287 | if (f2fs_may_inline_dentry(inode)) |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 288 | set_inode_flag(inode, FI_INLINE_DENTRY); |
Chao Yu | 622f28a | 2014-09-24 18:19:10 +0800 | [diff] [blame] | 289 | |
Chao Yu | 7beb01f | 2018-10-24 18:34:26 +0800 | [diff] [blame] | 290 | if (f2fs_sb_has_flexible_inline_xattr(sbi)) { |
Chao Yu | 6afc662 | 2017-09-06 21:59:50 +0800 | [diff] [blame] | 291 | f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode)); |
| 292 | if (f2fs_has_inline_xattr(inode)) |
Chao Yu | 63189b7 | 2018-03-08 14:22:56 +0800 | [diff] [blame] | 293 | xattr_size = F2FS_OPTION(sbi).inline_xattr_size; |
Chao Yu | 6afc662 | 2017-09-06 21:59:50 +0800 | [diff] [blame] | 294 | /* Otherwise, will be 0 */ |
| 295 | } else if (f2fs_has_inline_xattr(inode) || |
| 296 | f2fs_has_inline_dentry(inode)) { |
| 297 | xattr_size = DEFAULT_INLINE_XATTR_ADDRS; |
| 298 | } |
| 299 | F2FS_I(inode)->i_inline_xattr_size = xattr_size; |
| 300 | |
Chao Yu | 5c57132 | 2017-07-26 00:01:41 +0800 | [diff] [blame] | 301 | F2FS_I(inode)->i_flags = |
| 302 | f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED); |
| 303 | |
Chao Yu | 11f5020 | 2017-08-30 18:04:47 +0800 | [diff] [blame] | 304 | if (S_ISDIR(inode->i_mode)) |
Chao Yu | 59c8440 | 2018-04-03 15:08:17 +0800 | [diff] [blame] | 305 | F2FS_I(inode)->i_flags |= F2FS_INDEX_FL; |
Chao Yu | 11f5020 | 2017-08-30 18:04:47 +0800 | [diff] [blame] | 306 | |
Chao Yu | 59c8440 | 2018-04-03 15:08:17 +0800 | [diff] [blame] | 307 | if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL) |
Chao Yu | 5c57132 | 2017-07-26 00:01:41 +0800 | [diff] [blame] | 308 | set_inode_flag(inode, FI_PROJ_INHERIT); |
| 309 | |
Sheng Yong | 787caf1 | 2022-11-11 18:08:29 +0800 | [diff] [blame] | 310 | /* Check compression first. */ |
| 311 | set_compress_new_inode(sbi, dir, inode, name); |
Chao Yu | 4c8ff70 | 2019-11-01 18:07:14 +0800 | [diff] [blame] | 312 | |
Jaegeuk Kim | 4cde00d | 2022-05-31 18:27:09 -0700 | [diff] [blame] | 313 | /* Should enable inline_data after compression set */ |
| 314 | if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode)) |
| 315 | set_inode_flag(inode, FI_INLINE_DATA); |
| 316 | |
Sheng Yong | b16bcaa | 2022-11-11 18:08:30 +0800 | [diff] [blame] | 317 | if (name && !test_opt(sbi, DISABLE_EXT_IDENTIFY)) |
| 318 | set_file_temperature(sbi, inode, name); |
| 319 | |
Jaegeuk Kim | 4cde00d | 2022-05-31 18:27:09 -0700 | [diff] [blame] | 320 | stat_inc_inline_xattr(inode); |
| 321 | stat_inc_inline_inode(inode); |
| 322 | stat_inc_inline_dir(inode); |
| 323 | |
Chao Yu | 9149a5e | 2018-10-07 19:06:15 +0800 | [diff] [blame] | 324 | f2fs_set_inode_flags(inode); |
| 325 | |
Jaegeuk Kim | 72840cc | 2022-12-02 13:51:09 -0800 | [diff] [blame] | 326 | f2fs_init_extent_tree(inode); |
| 327 | |
Jaegeuk Kim | d70b4f5 | 2013-04-25 13:24:33 +0900 | [diff] [blame] | 328 | trace_f2fs_new_inode(inode, 0); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 329 | return inode; |
| 330 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 331 | fail: |
Jaegeuk Kim | d70b4f5 | 2013-04-25 13:24:33 +0900 | [diff] [blame] | 332 | trace_f2fs_new_inode(inode, err); |
Jaegeuk Kim | 531ad7d | 2013-04-30 11:33:27 +0900 | [diff] [blame] | 333 | make_bad_inode(inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 334 | if (nid_free) |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 335 | set_inode_flag(inode, FI_FREE_NID); |
Jaegeuk Kim | c9b63bd | 2015-06-23 10:36:08 -0700 | [diff] [blame] | 336 | iput(inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 337 | return ERR_PTR(err); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 338 | fail_drop: |
| 339 | trace_f2fs_new_inode(inode, err); |
| 340 | dquot_drop(inode); |
| 341 | inode->i_flags |= S_NOQUOTA; |
| 342 | if (nid_free) |
| 343 | set_inode_flag(inode, FI_FREE_NID); |
| 344 | clear_nlink(inode); |
| 345 | unlock_new_inode(inode); |
| 346 | iput(inode); |
| 347 | return ERR_PTR(err); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 348 | } |
| 349 | |
Christian Brauner | 6c960e6 | 2023-01-13 12:49:13 +0100 | [diff] [blame] | 350 | static int f2fs_create(struct mnt_idmap *idmap, struct inode *dir, |
Christian Brauner | 549c729 | 2021-01-21 14:19:43 +0100 | [diff] [blame] | 351 | struct dentry *dentry, umode_t mode, bool excl) |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 352 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 353 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 354 | struct inode *inode; |
| 355 | nid_t ino = 0; |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 356 | int err; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 357 | |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 358 | if (unlikely(f2fs_cp_error(sbi))) |
| 359 | return -EIO; |
Chao Yu | 00e09c0 | 2019-08-23 17:58:36 +0800 | [diff] [blame] | 360 | if (!f2fs_is_checkpoint_ready(sbi)) |
| 361 | return -ENOSPC; |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 362 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 363 | err = f2fs_dquot_initialize(dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 364 | if (err) |
| 365 | return err; |
| 366 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 367 | inode = f2fs_new_inode(idmap, dir, mode, dentry->d_name.name); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 368 | if (IS_ERR(inode)) |
| 369 | return PTR_ERR(inode); |
| 370 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 371 | inode->i_op = &f2fs_file_inode_operations; |
| 372 | inode->i_fop = &f2fs_file_operations; |
| 373 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
| 374 | ino = inode->i_ino; |
| 375 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 376 | f2fs_lock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 377 | err = f2fs_add_link(dentry, inode); |
| 378 | if (err) |
| 379 | goto out; |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 380 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 381 | |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 382 | f2fs_alloc_nid_done(sbi, ino); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 383 | |
Al Viro | 1e2e547 | 2018-05-04 08:23:01 -0400 | [diff] [blame] | 384 | d_instantiate_new(dentry, inode); |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 385 | |
| 386 | if (IS_DIRSYNC(dir)) |
| 387 | f2fs_sync_fs(sbi->sb, 1); |
Jaegeuk Kim | 9bb02c3 | 2017-04-11 19:01:26 -0700 | [diff] [blame] | 388 | |
| 389 | f2fs_balance_fs(sbi, true); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 390 | return 0; |
| 391 | out: |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 392 | f2fs_handle_failed_inode(inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 393 | return err; |
| 394 | } |
| 395 | |
| 396 | static int f2fs_link(struct dentry *old_dentry, struct inode *dir, |
| 397 | struct dentry *dentry) |
| 398 | { |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 399 | struct inode *inode = d_inode(old_dentry); |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 400 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 401 | int err; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 402 | |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 403 | if (unlikely(f2fs_cp_error(sbi))) |
| 404 | return -EIO; |
Chao Yu | 00e09c0 | 2019-08-23 17:58:36 +0800 | [diff] [blame] | 405 | if (!f2fs_is_checkpoint_ready(sbi)) |
| 406 | return -ENOSPC; |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 407 | |
Eric Biggers | b05157e | 2017-11-29 12:35:29 -0800 | [diff] [blame] | 408 | err = fscrypt_prepare_link(old_dentry, dir, dentry); |
| 409 | if (err) |
| 410 | return err; |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 411 | |
Chao Yu | 5c57132 | 2017-07-26 00:01:41 +0800 | [diff] [blame] | 412 | if (is_inode_flag_set(dir, FI_PROJ_INHERIT) && |
| 413 | (!projid_eq(F2FS_I(dir)->i_projid, |
| 414 | F2FS_I(old_dentry->d_inode)->i_projid))) |
| 415 | return -EXDEV; |
| 416 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 417 | err = f2fs_dquot_initialize(dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 418 | if (err) |
| 419 | return err; |
| 420 | |
Jaegeuk Kim | 2c4db1a | 2016-01-07 14:15:04 -0800 | [diff] [blame] | 421 | f2fs_balance_fs(sbi, true); |
Jaegeuk Kim | 1efef83 | 2012-12-19 16:25:21 +0900 | [diff] [blame] | 422 | |
Jeff Layton | c62ebd3 | 2023-07-05 15:01:08 -0400 | [diff] [blame] | 423 | inode_set_ctime_current(inode); |
Jaegeuk Kim | 6f6fd83 | 2013-05-22 12:06:26 +0900 | [diff] [blame] | 424 | ihold(inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 425 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 426 | set_inode_flag(inode, FI_INC_LINK); |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 427 | f2fs_lock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 428 | err = f2fs_add_link(dentry, inode); |
| 429 | if (err) |
| 430 | goto out; |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 431 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 432 | |
| 433 | d_instantiate(dentry, inode); |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 434 | |
| 435 | if (IS_DIRSYNC(dir)) |
| 436 | f2fs_sync_fs(sbi->sb, 1); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 437 | return 0; |
| 438 | out: |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 439 | clear_inode_flag(inode, FI_INC_LINK); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 440 | iput(inode); |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 441 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 442 | return err; |
| 443 | } |
| 444 | |
| 445 | struct dentry *f2fs_get_parent(struct dentry *child) |
| 446 | { |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 447 | struct page *page; |
Al Viro | 80e5d1ff5 | 2021-04-15 19:46:50 -0400 | [diff] [blame] | 448 | unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot_name, &page); |
Yi Zhuang | 5f029c0 | 2021-04-06 09:47:35 +0800 | [diff] [blame] | 449 | |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 450 | if (!ino) { |
| 451 | if (IS_ERR(page)) |
| 452 | return ERR_CAST(page); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 453 | return ERR_PTR(-ENOENT); |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 454 | } |
Al Viro | fc64005 | 2016-04-10 01:33:30 -0400 | [diff] [blame] | 455 | return d_obtain_alias(f2fs_iget(child->d_sb, ino)); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 456 | } |
| 457 | |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 458 | static int __recover_dot_dentries(struct inode *dir, nid_t pino) |
| 459 | { |
| 460 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
| 461 | struct qstr dot = QSTR_INIT(".", 1); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 462 | struct f2fs_dir_entry *de; |
| 463 | struct page *page; |
| 464 | int err = 0; |
| 465 | |
Chao Yu | 4e0d836 | 2015-12-30 17:40:31 +0800 | [diff] [blame] | 466 | if (f2fs_readonly(sbi->sb)) { |
Joe Perches | dcbb4c1 | 2019-06-18 17:48:42 +0800 | [diff] [blame] | 467 | f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint", |
| 468 | dir->i_ino, pino); |
Chao Yu | 4e0d836 | 2015-12-30 17:40:31 +0800 | [diff] [blame] | 469 | return 0; |
| 470 | } |
| 471 | |
Chao Yu | 12662d1 | 2022-03-29 00:02:53 +0800 | [diff] [blame] | 472 | if (!S_ISDIR(dir->i_mode)) { |
| 473 | f2fs_err(sbi, "inconsistent inode status, skip recovering inline_dots inode (ino:%lu, i_mode:%u, pino:%u)", |
| 474 | dir->i_ino, dir->i_mode, pino); |
| 475 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
| 476 | return -ENOTDIR; |
| 477 | } |
| 478 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 479 | err = f2fs_dquot_initialize(dir); |
Chao Yu | a6d3a47 | 2017-07-24 17:12:06 +0800 | [diff] [blame] | 480 | if (err) |
| 481 | return err; |
| 482 | |
Jaegeuk Kim | 2c4db1a | 2016-01-07 14:15:04 -0800 | [diff] [blame] | 483 | f2fs_balance_fs(sbi, true); |
Chao Yu | d538417 | 2015-12-24 18:03:29 +0800 | [diff] [blame] | 484 | |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 485 | f2fs_lock_op(sbi); |
| 486 | |
| 487 | de = f2fs_find_entry(dir, &dot, &page); |
| 488 | if (de) { |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 489 | f2fs_put_page(page, 0); |
Jaegeuk Kim | 42d9640 | 2016-05-25 14:29:11 -0700 | [diff] [blame] | 490 | } else if (IS_ERR(page)) { |
| 491 | err = PTR_ERR(page); |
| 492 | goto out; |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 493 | } else { |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 494 | err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 495 | if (err) |
| 496 | goto out; |
| 497 | } |
| 498 | |
Chao Yu | ff6584a | 2023-11-16 14:25:54 +0800 | [diff] [blame] | 499 | de = f2fs_find_entry(dir, &dotdot_name, &page); |
Yunlong Song | bdbc90f | 2018-02-28 20:31:52 +0800 | [diff] [blame] | 500 | if (de) |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 501 | f2fs_put_page(page, 0); |
Yunlong Song | bdbc90f | 2018-02-28 20:31:52 +0800 | [diff] [blame] | 502 | else if (IS_ERR(page)) |
Jaegeuk Kim | 42d9640 | 2016-05-25 14:29:11 -0700 | [diff] [blame] | 503 | err = PTR_ERR(page); |
Yunlong Song | bdbc90f | 2018-02-28 20:31:52 +0800 | [diff] [blame] | 504 | else |
Chao Yu | ff6584a | 2023-11-16 14:25:54 +0800 | [diff] [blame] | 505 | err = f2fs_do_add_link(dir, &dotdot_name, NULL, pino, S_IFDIR); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 506 | out: |
Jaegeuk Kim | 205b982 | 2016-05-20 09:52:20 -0700 | [diff] [blame] | 507 | if (!err) |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 508 | clear_inode_flag(dir, FI_INLINE_DOTS); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 509 | |
| 510 | f2fs_unlock_op(sbi); |
| 511 | return err; |
| 512 | } |
| 513 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 514 | static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, |
| 515 | unsigned int flags) |
| 516 | { |
| 517 | struct inode *inode = NULL; |
| 518 | struct f2fs_dir_entry *de; |
| 519 | struct page *page; |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 520 | struct dentry *new; |
| 521 | nid_t ino = -1; |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 522 | int err = 0; |
Liu Xue | 8c2b143 | 2016-02-26 06:39:23 +0000 | [diff] [blame] | 523 | unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir)); |
Eric Biggers | 43c780b | 2020-05-07 00:59:04 -0700 | [diff] [blame] | 524 | struct f2fs_filename fname; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 525 | |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 526 | trace_f2fs_lookup_start(dir, dentry, flags); |
| 527 | |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 528 | if (dentry->d_name.len > F2FS_NAME_LEN) { |
| 529 | err = -ENAMETOOLONG; |
| 530 | goto out; |
| 531 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 532 | |
Eric Biggers | 43c780b | 2020-05-07 00:59:04 -0700 | [diff] [blame] | 533 | err = f2fs_prepare_lookup(dir, dentry, &fname); |
Eric Biggers | b01531d | 2019-03-20 11:39:13 -0700 | [diff] [blame] | 534 | if (err == -ENOENT) |
| 535 | goto out_splice; |
| 536 | if (err) |
| 537 | goto out; |
| 538 | de = __f2fs_find_entry(dir, &fname, &page); |
Eric Biggers | 43c780b | 2020-05-07 00:59:04 -0700 | [diff] [blame] | 539 | f2fs_free_filename(&fname); |
Eric Biggers | b01531d | 2019-03-20 11:39:13 -0700 | [diff] [blame] | 540 | |
Jaegeuk Kim | eb4246d | 2016-05-27 10:10:41 -0700 | [diff] [blame] | 541 | if (!de) { |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 542 | if (IS_ERR(page)) { |
| 543 | err = PTR_ERR(page); |
| 544 | goto out; |
| 545 | } |
Chao Yu | 84597b1 | 2020-05-27 18:27:51 +0800 | [diff] [blame] | 546 | err = -ENOENT; |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 547 | goto out_splice; |
Jaegeuk Kim | eb4246d | 2016-05-27 10:10:41 -0700 | [diff] [blame] | 548 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 549 | |
Jaegeuk Kim | 06957e8 | 2015-04-22 11:40:27 -0700 | [diff] [blame] | 550 | ino = le32_to_cpu(de->ino); |
Jaegeuk Kim | 06957e8 | 2015-04-22 11:40:27 -0700 | [diff] [blame] | 551 | f2fs_put_page(page, 0); |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 552 | |
Jaegeuk Kim | 06957e8 | 2015-04-22 11:40:27 -0700 | [diff] [blame] | 553 | inode = f2fs_iget(dir->i_sb, ino); |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 554 | if (IS_ERR(inode)) { |
| 555 | err = PTR_ERR(inode); |
| 556 | goto out; |
| 557 | } |
Jaegeuk Kim | 510022a | 2015-03-30 15:07:16 -0700 | [diff] [blame] | 558 | |
Liu Xue | 8c2b143 | 2016-02-26 06:39:23 +0000 | [diff] [blame] | 559 | if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) { |
| 560 | err = __recover_dot_dentries(dir, root_ino); |
| 561 | if (err) |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 562 | goto out_iput; |
Liu Xue | 8c2b143 | 2016-02-26 06:39:23 +0000 | [diff] [blame] | 563 | } |
| 564 | |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 565 | if (f2fs_has_inline_dots(inode)) { |
Jaegeuk Kim | 06957e8 | 2015-04-22 11:40:27 -0700 | [diff] [blame] | 566 | err = __recover_dot_dentries(inode, dir->i_ino); |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 567 | if (err) |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 568 | goto out_iput; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 569 | } |
Chandan Rajendra | 62230e0d | 2018-12-12 15:20:11 +0530 | [diff] [blame] | 570 | if (IS_ENCRYPTED(dir) && |
Dan Carpenter | 07fe8d4 | 2016-12-16 11:18:15 +0300 | [diff] [blame] | 571 | (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) && |
| 572 | !fscrypt_has_permitted_context(dir, inode)) { |
Joe Perches | dcbb4c1 | 2019-06-18 17:48:42 +0800 | [diff] [blame] | 573 | f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu", |
| 574 | dir->i_ino, inode->i_ino); |
Eric Biggers | faac7fd | 2017-04-07 10:58:39 -0700 | [diff] [blame] | 575 | err = -EPERM; |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 576 | goto out_iput; |
Jaegeuk Kim | 8074bb5 | 2016-02-23 09:21:37 -0800 | [diff] [blame] | 577 | } |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 578 | out_splice: |
Christoph Hellwig | 5298d4b | 2022-01-18 07:56:14 +0100 | [diff] [blame] | 579 | #if IS_ENABLED(CONFIG_UNICODE) |
Daniel Rosenberg | 2c2eb7a | 2019-07-23 16:05:29 -0700 | [diff] [blame] | 580 | if (!inode && IS_CASEFOLDED(dir)) { |
| 581 | /* Eventually we want to call d_add_ci(dentry, NULL) |
| 582 | * for negative dentries in the encoding case as |
| 583 | * well. For now, prevent the negative dentry |
| 584 | * from being cached. |
| 585 | */ |
| 586 | trace_f2fs_lookup_end(dir, dentry, ino, err); |
| 587 | return NULL; |
| 588 | } |
| 589 | #endif |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 590 | new = d_splice_alias(inode, dentry); |
Wu Bo | cadfc2f | 2023-06-01 09:37:59 +0800 | [diff] [blame] | 591 | trace_f2fs_lookup_end(dir, !IS_ERR_OR_NULL(new) ? new : dentry, |
| 592 | ino, IS_ERR(new) ? PTR_ERR(new) : err); |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 593 | return new; |
| 594 | out_iput: |
Chao Yu | d726732 | 2016-03-10 22:24:23 +0800 | [diff] [blame] | 595 | iput(inode); |
Chao Yu | 0c5e36d | 2017-10-17 17:33:41 +0800 | [diff] [blame] | 596 | out: |
| 597 | trace_f2fs_lookup_end(dir, dentry, ino, err); |
Jaegeuk Kim | fcc85a4 | 2015-04-21 20:39:58 -0700 | [diff] [blame] | 598 | return ERR_PTR(err); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 599 | } |
| 600 | |
| 601 | static int f2fs_unlink(struct inode *dir, struct dentry *dentry) |
| 602 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 603 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 604 | struct inode *inode = d_inode(dentry); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 605 | struct f2fs_dir_entry *de; |
| 606 | struct page *page; |
Colin Ian King | deaf160 | 2020-04-20 23:00:57 +0100 | [diff] [blame] | 607 | int err; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 608 | |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 609 | trace_f2fs_unlink_enter(dir, dentry); |
Jaegeuk Kim | 1efef83 | 2012-12-19 16:25:21 +0900 | [diff] [blame] | 610 | |
Lihong Kou | 9a99c17d | 2020-06-20 10:12:17 +0800 | [diff] [blame] | 611 | if (unlikely(f2fs_cp_error(sbi))) { |
| 612 | err = -EIO; |
| 613 | goto fail; |
| 614 | } |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 615 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 616 | err = f2fs_dquot_initialize(dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 617 | if (err) |
Lihong Kou | 9a99c17d | 2020-06-20 10:12:17 +0800 | [diff] [blame] | 618 | goto fail; |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 619 | err = f2fs_dquot_initialize(inode); |
Jaegeuk Kim | d8d1389 | 2017-10-23 23:50:15 +0200 | [diff] [blame] | 620 | if (err) |
Lihong Kou | 9a99c17d | 2020-06-20 10:12:17 +0800 | [diff] [blame] | 621 | goto fail; |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 622 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 623 | de = f2fs_find_entry(dir, &dentry->d_name, &page); |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 624 | if (!de) { |
| 625 | if (IS_ERR(page)) |
| 626 | err = PTR_ERR(page); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 627 | goto fail; |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 628 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 629 | |
Jaegeuk Kim | 2c4db1a | 2016-01-07 14:15:04 -0800 | [diff] [blame] | 630 | f2fs_balance_fs(sbi, true); |
Jaegeuk Kim | 00623e6 | 2015-12-22 11:56:08 -0800 | [diff] [blame] | 631 | |
Jaegeuk Kim | ccaaca2 | 2013-10-08 10:19:28 +0900 | [diff] [blame] | 632 | f2fs_lock_op(sbi); |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 633 | err = f2fs_acquire_orphan_inode(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 634 | if (err) { |
Jaegeuk Kim | ccaaca2 | 2013-10-08 10:19:28 +0900 | [diff] [blame] | 635 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 636 | f2fs_put_page(page, 0); |
| 637 | goto fail; |
| 638 | } |
Chao Yu | dbeacf0 | 2014-09-24 18:17:04 +0800 | [diff] [blame] | 639 | f2fs_delete_entry(de, page, dir, inode); |
Jaegeuk Kim | 14dc00a | 2022-10-17 17:52:05 -0700 | [diff] [blame] | 640 | f2fs_unlock_op(sbi); |
| 641 | |
Christoph Hellwig | 5298d4b | 2022-01-18 07:56:14 +0100 | [diff] [blame] | 642 | #if IS_ENABLED(CONFIG_UNICODE) |
Daniel Rosenberg | 2c2eb7a | 2019-07-23 16:05:29 -0700 | [diff] [blame] | 643 | /* VFS negative dentries are incompatible with Encoding and |
| 644 | * Case-insensitiveness. Eventually we'll want avoid |
| 645 | * invalidating the dentries here, alongside with returning the |
Jack Qiu | a87aff1 | 2020-07-24 16:55:28 +0800 | [diff] [blame] | 646 | * negative dentries at f2fs_lookup(), when it is better |
Daniel Rosenberg | 2c2eb7a | 2019-07-23 16:05:29 -0700 | [diff] [blame] | 647 | * supported by the VFS for the CI case. |
| 648 | */ |
| 649 | if (IS_CASEFOLDED(dir)) |
| 650 | d_invalidate(dentry); |
| 651 | #endif |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 652 | if (IS_DIRSYNC(dir)) |
| 653 | f2fs_sync_fs(sbi->sb, 1); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 654 | fail: |
Namjae Jeon | a2a4a7e | 2013-04-20 01:28:40 +0900 | [diff] [blame] | 655 | trace_f2fs_unlink_exit(inode, err); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 656 | return err; |
| 657 | } |
| 658 | |
Al Viro | 6b25539 | 2015-11-17 10:20:54 -0500 | [diff] [blame] | 659 | static const char *f2fs_get_link(struct dentry *dentry, |
Al Viro | fceef39 | 2015-12-29 15:58:39 -0500 | [diff] [blame] | 660 | struct inode *inode, |
| 661 | struct delayed_call *done) |
Jaegeuk Kim | feb7cbb | 2015-04-15 13:49:55 -0700 | [diff] [blame] | 662 | { |
Al Viro | fceef39 | 2015-12-29 15:58:39 -0500 | [diff] [blame] | 663 | const char *link = page_get_link(dentry, inode, done); |
Yi Zhuang | 5f029c0 | 2021-04-06 09:47:35 +0800 | [diff] [blame] | 664 | |
Al Viro | 680baac | 2015-05-02 13:32:22 -0400 | [diff] [blame] | 665 | if (!IS_ERR(link) && !*link) { |
| 666 | /* this is broken symlink case */ |
Al Viro | fceef39 | 2015-12-29 15:58:39 -0500 | [diff] [blame] | 667 | do_delayed_call(done); |
| 668 | clear_delayed_call(done); |
Al Viro | 680baac | 2015-05-02 13:32:22 -0400 | [diff] [blame] | 669 | link = ERR_PTR(-ENOENT); |
Jaegeuk Kim | feb7cbb | 2015-04-15 13:49:55 -0700 | [diff] [blame] | 670 | } |
Al Viro | 680baac | 2015-05-02 13:32:22 -0400 | [diff] [blame] | 671 | return link; |
Jaegeuk Kim | feb7cbb | 2015-04-15 13:49:55 -0700 | [diff] [blame] | 672 | } |
| 673 | |
Christian Brauner | 7a77db9 | 2023-01-13 12:49:14 +0100 | [diff] [blame] | 674 | static int f2fs_symlink(struct mnt_idmap *idmap, struct inode *dir, |
Christian Brauner | 549c729 | 2021-01-21 14:19:43 +0100 | [diff] [blame] | 675 | struct dentry *dentry, const char *symname) |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 676 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 677 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 678 | struct inode *inode; |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 679 | size_t len = strlen(symname); |
Eric Biggers | 393c038 | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 680 | struct fscrypt_str disk_link; |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 681 | int err; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 682 | |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 683 | if (unlikely(f2fs_cp_error(sbi))) |
| 684 | return -EIO; |
Chao Yu | 00e09c0 | 2019-08-23 17:58:36 +0800 | [diff] [blame] | 685 | if (!f2fs_is_checkpoint_ready(sbi)) |
| 686 | return -ENOSPC; |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 687 | |
Eric Biggers | 393c038 | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 688 | err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize, |
| 689 | &disk_link); |
| 690 | if (err) |
| 691 | return err; |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 692 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 693 | err = f2fs_dquot_initialize(dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 694 | if (err) |
| 695 | return err; |
| 696 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 697 | inode = f2fs_new_inode(idmap, dir, S_IFLNK | S_IRWXUGO, NULL); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 698 | if (IS_ERR(inode)) |
| 699 | return PTR_ERR(inode); |
| 700 | |
Eric Biggers | 393c038 | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 701 | if (IS_ENCRYPTED(inode)) |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 702 | inode->i_op = &f2fs_encrypted_symlink_inode_operations; |
| 703 | else |
| 704 | inode->i_op = &f2fs_symlink_inode_operations; |
Al Viro | 21fc61c | 2015-11-17 01:07:57 -0500 | [diff] [blame] | 705 | inode_nohighmem(inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 706 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
| 707 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 708 | f2fs_lock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 709 | err = f2fs_add_link(dentry, inode); |
| 710 | if (err) |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 711 | goto out_f2fs_handle_failed_inode; |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 712 | f2fs_unlock_op(sbi); |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 713 | f2fs_alloc_nid_done(sbi, inode->i_ino); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 714 | |
Eric Biggers | 393c038 | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 715 | err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link); |
| 716 | if (err) |
| 717 | goto err_out; |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 718 | |
Chao Yu | 922ec35 | 2016-02-15 17:54:26 +0800 | [diff] [blame] | 719 | err = page_symlink(inode, disk_link.name, disk_link.len); |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 720 | |
| 721 | err_out: |
Al Viro | 1e2e547 | 2018-05-04 08:23:01 -0400 | [diff] [blame] | 722 | d_instantiate_new(dentry, inode); |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 723 | |
Jaegeuk Kim | d0cae97 | 2015-04-15 13:37:53 -0700 | [diff] [blame] | 724 | /* |
| 725 | * Let's flush symlink data in order to avoid broken symlink as much as |
| 726 | * possible. Nevertheless, fsyncing is the best way, but there is no |
| 727 | * way to get a file descriptor in order to flush that. |
| 728 | * |
| 729 | * Note that, it needs to do dir->fsync to make this recoverable. |
| 730 | * If the symlink path is stored into inline_data, there is no |
| 731 | * performance regression. |
| 732 | */ |
Chao Yu | a6be014 | 2015-10-22 18:23:08 +0800 | [diff] [blame] | 733 | if (!err) { |
Chao Yu | 922ec35 | 2016-02-15 17:54:26 +0800 | [diff] [blame] | 734 | filemap_write_and_wait_range(inode->i_mapping, 0, |
| 735 | disk_link.len - 1); |
Jaegeuk Kim | d0cae97 | 2015-04-15 13:37:53 -0700 | [diff] [blame] | 736 | |
Chao Yu | a6be014 | 2015-10-22 18:23:08 +0800 | [diff] [blame] | 737 | if (IS_DIRSYNC(dir)) |
| 738 | f2fs_sync_fs(sbi->sb, 1); |
| 739 | } else { |
| 740 | f2fs_unlink(dir, dentry); |
| 741 | } |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 742 | |
Jaegeuk Kim | 9bb02c3 | 2017-04-11 19:01:26 -0700 | [diff] [blame] | 743 | f2fs_balance_fs(sbi, true); |
Eric Biggers | 393c038 | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 744 | goto out_free_encrypted_link; |
| 745 | |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 746 | out_f2fs_handle_failed_inode: |
| 747 | f2fs_handle_failed_inode(inode); |
Eric Biggers | 393c038 | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 748 | out_free_encrypted_link: |
| 749 | if (disk_link.name != (unsigned char *)symname) |
Chao Yu | c8eb702 | 2020-09-14 16:47:00 +0800 | [diff] [blame] | 750 | kfree(disk_link.name); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 751 | return err; |
| 752 | } |
| 753 | |
Christian Brauner | c54bd91 | 2023-01-13 12:49:15 +0100 | [diff] [blame] | 754 | static int f2fs_mkdir(struct mnt_idmap *idmap, struct inode *dir, |
Christian Brauner | 549c729 | 2021-01-21 14:19:43 +0100 | [diff] [blame] | 755 | struct dentry *dentry, umode_t mode) |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 756 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 757 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 758 | struct inode *inode; |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 759 | int err; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 760 | |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 761 | if (unlikely(f2fs_cp_error(sbi))) |
| 762 | return -EIO; |
| 763 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 764 | err = f2fs_dquot_initialize(dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 765 | if (err) |
| 766 | return err; |
| 767 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 768 | inode = f2fs_new_inode(idmap, dir, S_IFDIR | mode, NULL); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 769 | if (IS_ERR(inode)) |
Namjae Jeon | 61412b6 | 2012-12-01 10:56:25 +0900 | [diff] [blame] | 770 | return PTR_ERR(inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 771 | |
| 772 | inode->i_op = &f2fs_dir_inode_operations; |
| 773 | inode->i_fop = &f2fs_dir_operations; |
| 774 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
Jaegeuk Kim | 92d602b | 2021-09-07 10:24:21 -0700 | [diff] [blame] | 775 | mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 776 | |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 777 | set_inode_flag(inode, FI_INC_LINK); |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 778 | f2fs_lock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 779 | err = f2fs_add_link(dentry, inode); |
| 780 | if (err) |
| 781 | goto out_fail; |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 782 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 783 | |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 784 | f2fs_alloc_nid_done(sbi, inode->i_ino); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 785 | |
Al Viro | 1e2e547 | 2018-05-04 08:23:01 -0400 | [diff] [blame] | 786 | d_instantiate_new(dentry, inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 787 | |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 788 | if (IS_DIRSYNC(dir)) |
| 789 | f2fs_sync_fs(sbi->sb, 1); |
Jaegeuk Kim | 9bb02c3 | 2017-04-11 19:01:26 -0700 | [diff] [blame] | 790 | |
| 791 | f2fs_balance_fs(sbi, true); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 792 | return 0; |
| 793 | |
| 794 | out_fail: |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 795 | clear_inode_flag(inode, FI_INC_LINK); |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 796 | f2fs_handle_failed_inode(inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 797 | return err; |
| 798 | } |
| 799 | |
| 800 | static int f2fs_rmdir(struct inode *dir, struct dentry *dentry) |
| 801 | { |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 802 | struct inode *inode = d_inode(dentry); |
Yi Zhuang | 5f029c0 | 2021-04-06 09:47:35 +0800 | [diff] [blame] | 803 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 804 | if (f2fs_empty_dir(inode)) |
| 805 | return f2fs_unlink(dir, dentry); |
| 806 | return -ENOTEMPTY; |
| 807 | } |
| 808 | |
Christian Brauner | 5ebb29b | 2023-01-13 12:49:16 +0100 | [diff] [blame] | 809 | static int f2fs_mknod(struct mnt_idmap *idmap, struct inode *dir, |
Christian Brauner | 549c729 | 2021-01-21 14:19:43 +0100 | [diff] [blame] | 810 | struct dentry *dentry, umode_t mode, dev_t rdev) |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 811 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 812 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 813 | struct inode *inode; |
| 814 | int err = 0; |
| 815 | |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 816 | if (unlikely(f2fs_cp_error(sbi))) |
| 817 | return -EIO; |
Chao Yu | 00e09c0 | 2019-08-23 17:58:36 +0800 | [diff] [blame] | 818 | if (!f2fs_is_checkpoint_ready(sbi)) |
| 819 | return -ENOSPC; |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 820 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 821 | err = f2fs_dquot_initialize(dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 822 | if (err) |
| 823 | return err; |
| 824 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 825 | inode = f2fs_new_inode(idmap, dir, mode, NULL); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 826 | if (IS_ERR(inode)) |
| 827 | return PTR_ERR(inode); |
| 828 | |
| 829 | init_special_inode(inode, inode->i_mode, rdev); |
| 830 | inode->i_op = &f2fs_special_inode_operations; |
| 831 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 832 | f2fs_lock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 833 | err = f2fs_add_link(dentry, inode); |
| 834 | if (err) |
| 835 | goto out; |
Jaegeuk Kim | 44c1615 | 2014-09-25 11:55:53 -0700 | [diff] [blame] | 836 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 837 | |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 838 | f2fs_alloc_nid_done(sbi, inode->i_ino); |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 839 | |
Al Viro | 1e2e547 | 2018-05-04 08:23:01 -0400 | [diff] [blame] | 840 | d_instantiate_new(dentry, inode); |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 841 | |
| 842 | if (IS_DIRSYNC(dir)) |
| 843 | f2fs_sync_fs(sbi->sb, 1); |
Jaegeuk Kim | 9bb02c3 | 2017-04-11 19:01:26 -0700 | [diff] [blame] | 844 | |
| 845 | f2fs_balance_fs(sbi, true); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 846 | return 0; |
| 847 | out: |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 848 | f2fs_handle_failed_inode(inode); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 849 | return err; |
| 850 | } |
| 851 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 852 | static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, |
Miklos Szeredi | 863f144 | 2022-09-24 07:00:00 +0200 | [diff] [blame] | 853 | struct file *file, umode_t mode, bool is_whiteout, |
Chao Yu | 40b2d55 | 2024-02-07 15:05:48 +0800 | [diff] [blame] | 854 | struct inode **new_inode, struct f2fs_filename *fname) |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 855 | { |
| 856 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
| 857 | struct inode *inode; |
| 858 | int err; |
| 859 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 860 | err = f2fs_dquot_initialize(dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 861 | if (err) |
| 862 | return err; |
| 863 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 864 | inode = f2fs_new_inode(idmap, dir, mode, NULL); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 865 | if (IS_ERR(inode)) |
| 866 | return PTR_ERR(inode); |
| 867 | |
Daeho Jeong | 3db1de0 | 2022-04-28 11:18:09 -0700 | [diff] [blame] | 868 | if (is_whiteout) { |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 869 | init_special_inode(inode, inode->i_mode, WHITEOUT_DEV); |
| 870 | inode->i_op = &f2fs_special_inode_operations; |
| 871 | } else { |
| 872 | inode->i_op = &f2fs_file_inode_operations; |
| 873 | inode->i_fop = &f2fs_file_operations; |
| 874 | inode->i_mapping->a_ops = &f2fs_dblock_aops; |
| 875 | } |
| 876 | |
| 877 | f2fs_lock_op(sbi); |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 878 | err = f2fs_acquire_orphan_inode(sbi); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 879 | if (err) |
| 880 | goto out; |
| 881 | |
Chao Yu | 40b2d55 | 2024-02-07 15:05:48 +0800 | [diff] [blame] | 882 | err = f2fs_do_tmpfile(inode, dir, fname); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 883 | if (err) |
| 884 | goto release_out; |
| 885 | |
| 886 | /* |
| 887 | * add this non-linked tmpfile to orphan list, in this way we could |
| 888 | * remove all unused data of tmpfile after abnormal power-off. |
| 889 | */ |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 890 | f2fs_add_orphan_inode(inode); |
| 891 | f2fs_alloc_nid_done(sbi, inode->i_ino); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 892 | |
Daeho Jeong | 3db1de0 | 2022-04-28 11:18:09 -0700 | [diff] [blame] | 893 | if (is_whiteout) { |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 894 | f2fs_i_links_write(inode, false); |
Chao Yu | 46085f3 | 2021-01-12 09:55:09 +0800 | [diff] [blame] | 895 | |
| 896 | spin_lock(&inode->i_lock); |
Jaegeuk Kim | 5b1dbb0 | 2019-12-06 16:59:58 -0800 | [diff] [blame] | 897 | inode->i_state |= I_LINKABLE; |
Chao Yu | 46085f3 | 2021-01-12 09:55:09 +0800 | [diff] [blame] | 898 | spin_unlock(&inode->i_lock); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 899 | } else { |
Miklos Szeredi | 863f144 | 2022-09-24 07:00:00 +0200 | [diff] [blame] | 900 | if (file) |
| 901 | d_tmpfile(file, inode); |
Daeho Jeong | 3db1de0 | 2022-04-28 11:18:09 -0700 | [diff] [blame] | 902 | else |
| 903 | f2fs_i_links_write(inode, false); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 904 | } |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 905 | /* link_count was changed by d_tmpfile as well. */ |
| 906 | f2fs_unlock_op(sbi); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 907 | unlock_new_inode(inode); |
Jaegeuk Kim | 9bb02c3 | 2017-04-11 19:01:26 -0700 | [diff] [blame] | 908 | |
Daeho Jeong | 3db1de0 | 2022-04-28 11:18:09 -0700 | [diff] [blame] | 909 | if (new_inode) |
| 910 | *new_inode = inode; |
| 911 | |
Jaegeuk Kim | 9bb02c3 | 2017-04-11 19:01:26 -0700 | [diff] [blame] | 912 | f2fs_balance_fs(sbi, true); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 913 | return 0; |
| 914 | |
| 915 | release_out: |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 916 | f2fs_release_orphan_inode(sbi); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 917 | out: |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 918 | f2fs_handle_failed_inode(inode); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 919 | return err; |
| 920 | } |
| 921 | |
Christian Brauner | 011e2b7 | 2023-01-13 12:49:18 +0100 | [diff] [blame] | 922 | static int f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, |
Miklos Szeredi | 863f144 | 2022-09-24 07:00:00 +0200 | [diff] [blame] | 923 | struct file *file, umode_t mode) |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 924 | { |
Sheng Yong | ff62af2 | 2018-03-15 18:51:42 +0800 | [diff] [blame] | 925 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
Miklos Szeredi | 863f144 | 2022-09-24 07:00:00 +0200 | [diff] [blame] | 926 | int err; |
Sheng Yong | ff62af2 | 2018-03-15 18:51:42 +0800 | [diff] [blame] | 927 | |
| 928 | if (unlikely(f2fs_cp_error(sbi))) |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 929 | return -EIO; |
Chao Yu | 00e09c0 | 2019-08-23 17:58:36 +0800 | [diff] [blame] | 930 | if (!f2fs_is_checkpoint_ready(sbi)) |
| 931 | return -ENOSPC; |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 932 | |
Chao Yu | 40b2d55 | 2024-02-07 15:05:48 +0800 | [diff] [blame] | 933 | err = __f2fs_tmpfile(idmap, dir, file, mode, false, NULL, NULL); |
Miklos Szeredi | 863f144 | 2022-09-24 07:00:00 +0200 | [diff] [blame] | 934 | |
| 935 | return finish_open_simple(file, err); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 936 | } |
| 937 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 938 | static int f2fs_create_whiteout(struct mnt_idmap *idmap, |
Chao Yu | 40b2d55 | 2024-02-07 15:05:48 +0800 | [diff] [blame] | 939 | struct inode *dir, struct inode **whiteout, |
| 940 | struct f2fs_filename *fname) |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 941 | { |
Chao Yu | 40b2d55 | 2024-02-07 15:05:48 +0800 | [diff] [blame] | 942 | return __f2fs_tmpfile(idmap, dir, NULL, S_IFCHR | WHITEOUT_MODE, |
| 943 | true, whiteout, fname); |
Daeho Jeong | 3db1de0 | 2022-04-28 11:18:09 -0700 | [diff] [blame] | 944 | } |
| 945 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 946 | int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir, |
Daeho Jeong | 3db1de0 | 2022-04-28 11:18:09 -0700 | [diff] [blame] | 947 | struct inode **new_inode) |
| 948 | { |
Chao Yu | 40b2d55 | 2024-02-07 15:05:48 +0800 | [diff] [blame] | 949 | return __f2fs_tmpfile(idmap, dir, NULL, S_IFREG, |
| 950 | false, new_inode, NULL); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 951 | } |
| 952 | |
Christian Brauner | f2d4014 | 2023-01-13 12:49:25 +0100 | [diff] [blame] | 953 | static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir, |
Chao Yu | 984fc4e | 2022-02-04 13:24:56 +0800 | [diff] [blame] | 954 | struct dentry *old_dentry, struct inode *new_dir, |
| 955 | struct dentry *new_dentry, unsigned int flags) |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 956 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 957 | struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 958 | struct inode *old_inode = d_inode(old_dentry); |
| 959 | struct inode *new_inode = d_inode(new_dentry); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 960 | struct inode *whiteout = NULL; |
Jaegeuk Kim | 762e4db | 2019-12-11 15:10:47 -0800 | [diff] [blame] | 961 | struct page *old_dir_page = NULL; |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 962 | struct page *old_page, *new_page = NULL; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 963 | struct f2fs_dir_entry *old_dir_entry = NULL; |
| 964 | struct f2fs_dir_entry *old_entry; |
| 965 | struct f2fs_dir_entry *new_entry; |
Jan Kara | 7deee77 | 2023-10-12 23:14:23 +0200 | [diff] [blame] | 966 | bool old_is_dir = S_ISDIR(old_inode->i_mode); |
Jaegeuk Kim | d83d0f5 | 2018-09-17 13:25:04 -0700 | [diff] [blame] | 967 | int err; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 968 | |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 969 | if (unlikely(f2fs_cp_error(sbi))) |
| 970 | return -EIO; |
Chao Yu | 00e09c0 | 2019-08-23 17:58:36 +0800 | [diff] [blame] | 971 | if (!f2fs_is_checkpoint_ready(sbi)) |
| 972 | return -ENOSPC; |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 973 | |
Chao Yu | 5c57132 | 2017-07-26 00:01:41 +0800 | [diff] [blame] | 974 | if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && |
| 975 | (!projid_eq(F2FS_I(new_dir)->i_projid, |
| 976 | F2FS_I(old_dentry->d_inode)->i_projid))) |
| 977 | return -EXDEV; |
| 978 | |
Jaegeuk Kim | b06af2a | 2019-12-09 19:03:05 -0800 | [diff] [blame] | 979 | /* |
| 980 | * If new_inode is null, the below renaming flow will |
Jinyoung CHOI | 146949d | 2023-02-06 20:56:00 +0900 | [diff] [blame] | 981 | * add a link in old_dir which can convert inline_dir. |
Jaegeuk Kim | b06af2a | 2019-12-09 19:03:05 -0800 | [diff] [blame] | 982 | * After then, if we failed to get the entry due to other |
| 983 | * reasons like ENOMEM, we had to remove the new entry. |
| 984 | * Instead of adding such the error handling routine, let's |
| 985 | * simply convert first here. |
| 986 | */ |
| 987 | if (old_dir == new_dir && !new_inode) { |
| 988 | err = f2fs_try_convert_inline_dir(old_dir, new_dentry); |
| 989 | if (err) |
| 990 | return err; |
| 991 | } |
| 992 | |
Jaegeuk Kim | 5b1dbb0 | 2019-12-06 16:59:58 -0800 | [diff] [blame] | 993 | if (flags & RENAME_WHITEOUT) { |
Chao Yu | 40b2d55 | 2024-02-07 15:05:48 +0800 | [diff] [blame] | 994 | struct f2fs_filename fname; |
| 995 | |
| 996 | err = f2fs_setup_filename(old_dir, &old_dentry->d_name, |
| 997 | 0, &fname); |
| 998 | if (err) |
| 999 | return err; |
| 1000 | |
| 1001 | err = f2fs_create_whiteout(idmap, old_dir, &whiteout, &fname); |
Jaegeuk Kim | 5b1dbb0 | 2019-12-06 16:59:58 -0800 | [diff] [blame] | 1002 | if (err) |
| 1003 | return err; |
| 1004 | } |
| 1005 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 1006 | err = f2fs_dquot_initialize(old_dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 1007 | if (err) |
| 1008 | goto out; |
| 1009 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 1010 | err = f2fs_dquot_initialize(new_dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 1011 | if (err) |
| 1012 | goto out; |
| 1013 | |
Jaegeuk Kim | d8d1389 | 2017-10-23 23:50:15 +0200 | [diff] [blame] | 1014 | if (new_inode) { |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 1015 | err = f2fs_dquot_initialize(new_inode); |
Jaegeuk Kim | d8d1389 | 2017-10-23 23:50:15 +0200 | [diff] [blame] | 1016 | if (err) |
| 1017 | goto out; |
| 1018 | } |
| 1019 | |
Jaegeuk Kim | d83d0f5 | 2018-09-17 13:25:04 -0700 | [diff] [blame] | 1020 | err = -ENOENT; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1021 | old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1022 | if (!old_entry) { |
| 1023 | if (IS_ERR(old_page)) |
| 1024 | err = PTR_ERR(old_page); |
Jan Kara | cde3c9d | 2023-06-01 12:58:23 +0200 | [diff] [blame] | 1025 | goto out; |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1026 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1027 | |
Jan Kara | 7deee77 | 2023-10-12 23:14:23 +0200 | [diff] [blame] | 1028 | if (old_is_dir && old_dir != new_dir) { |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1029 | old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page); |
Jaegeuk Kim | 3e19886 | 2016-06-09 14:57:19 -0700 | [diff] [blame] | 1030 | if (!old_dir_entry) { |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1031 | if (IS_ERR(old_dir_page)) |
| 1032 | err = PTR_ERR(old_dir_page); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1033 | goto out_old; |
Jaegeuk Kim | 3e19886 | 2016-06-09 14:57:19 -0700 | [diff] [blame] | 1034 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1035 | } |
| 1036 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1037 | if (new_inode) { |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1038 | |
| 1039 | err = -ENOTEMPTY; |
Jan Kara | 7deee77 | 2023-10-12 23:14:23 +0200 | [diff] [blame] | 1040 | if (old_is_dir && !f2fs_empty_dir(new_inode)) |
Jaegeuk Kim | 5b1dbb0 | 2019-12-06 16:59:58 -0800 | [diff] [blame] | 1041 | goto out_dir; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1042 | |
| 1043 | err = -ENOENT; |
| 1044 | new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, |
| 1045 | &new_page); |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1046 | if (!new_entry) { |
| 1047 | if (IS_ERR(new_page)) |
| 1048 | err = PTR_ERR(new_page); |
Jaegeuk Kim | 5b1dbb0 | 2019-12-06 16:59:58 -0800 | [diff] [blame] | 1049 | goto out_dir; |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1050 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1051 | |
Jaegeuk Kim | 2c4db1a | 2016-01-07 14:15:04 -0800 | [diff] [blame] | 1052 | f2fs_balance_fs(sbi, true); |
Jaegeuk Kim | 00623e6 | 2015-12-22 11:56:08 -0800 | [diff] [blame] | 1053 | |
Chao Yu | 1256010 | 2014-06-24 14:16:24 +0800 | [diff] [blame] | 1054 | f2fs_lock_op(sbi); |
| 1055 | |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1056 | err = f2fs_acquire_orphan_inode(sbi); |
Jaegeuk Kim | cbd56e7 | 2013-07-30 11:36:53 +0900 | [diff] [blame] | 1057 | if (err) |
| 1058 | goto put_out_dir; |
| 1059 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1060 | f2fs_set_link(new_dir, new_entry, new_page, old_inode); |
Jaegeuk Kim | 762e4db | 2019-12-11 15:10:47 -0800 | [diff] [blame] | 1061 | new_page = NULL; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1062 | |
Jeff Layton | c62ebd3 | 2023-07-05 15:01:08 -0400 | [diff] [blame] | 1063 | inode_set_ctime_current(new_inode); |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1064 | f2fs_down_write(&F2FS_I(new_inode)->i_sem); |
Jan Kara | 7deee77 | 2023-10-12 23:14:23 +0200 | [diff] [blame] | 1065 | if (old_is_dir) |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1066 | f2fs_i_links_write(new_inode, false); |
| 1067 | f2fs_i_links_write(new_inode, false); |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1068 | f2fs_up_write(&F2FS_I(new_inode)->i_sem); |
Jaegeuk Kim | d928bfb | 2014-03-20 19:10:08 +0900 | [diff] [blame] | 1069 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1070 | if (!new_inode->i_nlink) |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1071 | f2fs_add_orphan_inode(new_inode); |
Jaegeuk Kim | cbd56e7 | 2013-07-30 11:36:53 +0900 | [diff] [blame] | 1072 | else |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1073 | f2fs_release_orphan_inode(sbi); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1074 | } else { |
Jaegeuk Kim | 2c4db1a | 2016-01-07 14:15:04 -0800 | [diff] [blame] | 1075 | f2fs_balance_fs(sbi, true); |
Jaegeuk Kim | 00623e6 | 2015-12-22 11:56:08 -0800 | [diff] [blame] | 1076 | |
Chao Yu | 1256010 | 2014-06-24 14:16:24 +0800 | [diff] [blame] | 1077 | f2fs_lock_op(sbi); |
| 1078 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1079 | err = f2fs_add_link(new_dentry, old_inode); |
Chao Yu | 1256010 | 2014-06-24 14:16:24 +0800 | [diff] [blame] | 1080 | if (err) { |
| 1081 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 5b1dbb0 | 2019-12-06 16:59:58 -0800 | [diff] [blame] | 1082 | goto out_dir; |
Chao Yu | 1256010 | 2014-06-24 14:16:24 +0800 | [diff] [blame] | 1083 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1084 | |
Jan Kara | 7deee77 | 2023-10-12 23:14:23 +0200 | [diff] [blame] | 1085 | if (old_is_dir) |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1086 | f2fs_i_links_write(new_dir, true); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1087 | } |
| 1088 | |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1089 | f2fs_down_write(&F2FS_I(old_inode)->i_sem); |
Jan Kara | 7deee77 | 2023-10-12 23:14:23 +0200 | [diff] [blame] | 1090 | if (!old_is_dir || whiteout) |
Sheng Yong | b855bf0 | 2017-06-26 10:41:36 +0800 | [diff] [blame] | 1091 | file_lost_pino(old_inode); |
| 1092 | else |
Chao Yu | 2a60637 | 2019-11-07 14:12:05 +0800 | [diff] [blame] | 1093 | /* adjust dir's i_pino to pass fsck check */ |
| 1094 | f2fs_i_pino_write(old_inode, new_dir->i_ino); |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1095 | f2fs_up_write(&F2FS_I(old_inode)->i_sem); |
Jaegeuk Kim | b2c0829 | 2014-06-30 18:09:55 +0900 | [diff] [blame] | 1096 | |
Jeff Layton | c62ebd3 | 2023-07-05 15:01:08 -0400 | [diff] [blame] | 1097 | inode_set_ctime_current(old_inode); |
Jaegeuk Kim | 7c45729 | 2016-10-14 11:51:23 -0700 | [diff] [blame] | 1098 | f2fs_mark_inode_dirty_sync(old_inode, false); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1099 | |
Chao Yu | dbeacf0 | 2014-09-24 18:17:04 +0800 | [diff] [blame] | 1100 | f2fs_delete_entry(old_entry, old_page, old_dir, NULL); |
Jaegeuk Kim | 762e4db | 2019-12-11 15:10:47 -0800 | [diff] [blame] | 1101 | old_page = NULL; |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1102 | |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 1103 | if (whiteout) { |
Jaegeuk Kim | 9194232 | 2016-05-20 10:13:22 -0700 | [diff] [blame] | 1104 | set_inode_flag(whiteout, FI_INC_LINK); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 1105 | err = f2fs_add_link(old_dentry, whiteout); |
| 1106 | if (err) |
| 1107 | goto put_out_dir; |
Chao Yu | 46085f3 | 2021-01-12 09:55:09 +0800 | [diff] [blame] | 1108 | |
| 1109 | spin_lock(&whiteout->i_lock); |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 1110 | whiteout->i_state &= ~I_LINKABLE; |
Chao Yu | 46085f3 | 2021-01-12 09:55:09 +0800 | [diff] [blame] | 1111 | spin_unlock(&whiteout->i_lock); |
| 1112 | |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 1113 | iput(whiteout); |
| 1114 | } |
| 1115 | |
Jaegeuk Kim | c10e8558 | 2024-01-12 09:11:13 -0800 | [diff] [blame] | 1116 | if (old_dir_entry) |
| 1117 | f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); |
| 1118 | if (old_is_dir) |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1119 | f2fs_i_links_write(old_dir, false); |
Jaegeuk Kim | c10e8558 | 2024-01-12 09:11:13 -0800 | [diff] [blame] | 1120 | |
Jaegeuk Kim | ade990f | 2018-04-24 22:43:01 -0600 | [diff] [blame] | 1121 | if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1122 | f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); |
Jaegeuk Kim | ade990f | 2018-04-24 22:43:01 -0600 | [diff] [blame] | 1123 | if (S_ISDIR(old_inode->i_mode)) |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1124 | f2fs_add_ino_entry(sbi, old_inode->i_ino, |
| 1125 | TRANS_DIR_INO); |
Jaegeuk Kim | ade990f | 2018-04-24 22:43:01 -0600 | [diff] [blame] | 1126 | } |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1127 | |
Gu Zheng | e479556 | 2013-09-27 18:08:30 +0800 | [diff] [blame] | 1128 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 1129 | |
| 1130 | if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) |
| 1131 | f2fs_sync_fs(sbi->sb, 1); |
Sahitya Tummala | 6390398 | 2018-10-05 10:47:40 +0530 | [diff] [blame] | 1132 | |
| 1133 | f2fs_update_time(sbi, REQ_TIME); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1134 | return 0; |
| 1135 | |
Jaegeuk Kim | cbd56e7 | 2013-07-30 11:36:53 +0900 | [diff] [blame] | 1136 | put_out_dir: |
Chao Yu | 1256010 | 2014-06-24 14:16:24 +0800 | [diff] [blame] | 1137 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | 762e4db | 2019-12-11 15:10:47 -0800 | [diff] [blame] | 1138 | f2fs_put_page(new_page, 0); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1139 | out_dir: |
Yunlong Song | bdbc90f | 2018-02-28 20:31:52 +0800 | [diff] [blame] | 1140 | if (old_dir_entry) |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1141 | f2fs_put_page(old_dir_page, 0); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1142 | out_old: |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1143 | f2fs_put_page(old_page, 0); |
| 1144 | out: |
Wang Xiaojun | 646f64b | 2022-03-14 15:15:15 +0800 | [diff] [blame] | 1145 | iput(whiteout); |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1146 | return err; |
| 1147 | } |
| 1148 | |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1149 | static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, |
| 1150 | struct inode *new_dir, struct dentry *new_dentry) |
| 1151 | { |
Jaegeuk Kim | 4081363 | 2014-09-02 15:31:18 -0700 | [diff] [blame] | 1152 | struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); |
David Howells | 2b0143b | 2015-03-17 22:25:59 +0000 | [diff] [blame] | 1153 | struct inode *old_inode = d_inode(old_dentry); |
| 1154 | struct inode *new_inode = d_inode(new_dentry); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1155 | struct page *old_dir_page, *new_dir_page; |
| 1156 | struct page *old_page, *new_page; |
| 1157 | struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL; |
| 1158 | struct f2fs_dir_entry *old_entry, *new_entry; |
| 1159 | int old_nlink = 0, new_nlink = 0; |
Jaegeuk Kim | d83d0f5 | 2018-09-17 13:25:04 -0700 | [diff] [blame] | 1160 | int err; |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1161 | |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 1162 | if (unlikely(f2fs_cp_error(sbi))) |
| 1163 | return -EIO; |
Chao Yu | 00e09c0 | 2019-08-23 17:58:36 +0800 | [diff] [blame] | 1164 | if (!f2fs_is_checkpoint_ready(sbi)) |
| 1165 | return -ENOSPC; |
Jaegeuk Kim | 1f227a3 | 2017-10-23 23:48:49 +0200 | [diff] [blame] | 1166 | |
Chao Yu | 5c57132 | 2017-07-26 00:01:41 +0800 | [diff] [blame] | 1167 | if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && |
| 1168 | !projid_eq(F2FS_I(new_dir)->i_projid, |
| 1169 | F2FS_I(old_dentry->d_inode)->i_projid)) || |
| 1170 | (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && |
| 1171 | !projid_eq(F2FS_I(old_dir)->i_projid, |
| 1172 | F2FS_I(new_dentry->d_inode)->i_projid))) |
| 1173 | return -EXDEV; |
| 1174 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 1175 | err = f2fs_dquot_initialize(old_dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 1176 | if (err) |
| 1177 | goto out; |
| 1178 | |
Chao Yu | 10a2687 | 2021-10-28 21:03:05 +0800 | [diff] [blame] | 1179 | err = f2fs_dquot_initialize(new_dir); |
Chao Yu | 0abd675 | 2017-07-09 00:13:07 +0800 | [diff] [blame] | 1180 | if (err) |
| 1181 | goto out; |
| 1182 | |
Jaegeuk Kim | d83d0f5 | 2018-09-17 13:25:04 -0700 | [diff] [blame] | 1183 | err = -ENOENT; |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1184 | old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1185 | if (!old_entry) { |
| 1186 | if (IS_ERR(old_page)) |
| 1187 | err = PTR_ERR(old_page); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1188 | goto out; |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1189 | } |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1190 | |
| 1191 | new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page); |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1192 | if (!new_entry) { |
| 1193 | if (IS_ERR(new_page)) |
| 1194 | err = PTR_ERR(new_page); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1195 | goto out_old; |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1196 | } |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1197 | |
| 1198 | /* prepare for updating ".." directory entry info later */ |
| 1199 | if (old_dir != new_dir) { |
| 1200 | if (S_ISDIR(old_inode->i_mode)) { |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1201 | old_dir_entry = f2fs_parent_dir(old_inode, |
| 1202 | &old_dir_page); |
Jaegeuk Kim | 3e19886 | 2016-06-09 14:57:19 -0700 | [diff] [blame] | 1203 | if (!old_dir_entry) { |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1204 | if (IS_ERR(old_dir_page)) |
| 1205 | err = PTR_ERR(old_dir_page); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1206 | goto out_new; |
Jaegeuk Kim | 3e19886 | 2016-06-09 14:57:19 -0700 | [diff] [blame] | 1207 | } |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1208 | } |
| 1209 | |
| 1210 | if (S_ISDIR(new_inode->i_mode)) { |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1211 | new_dir_entry = f2fs_parent_dir(new_inode, |
| 1212 | &new_dir_page); |
Jaegeuk Kim | 3e19886 | 2016-06-09 14:57:19 -0700 | [diff] [blame] | 1213 | if (!new_dir_entry) { |
Chao Yu | 91246c2 | 2016-07-19 08:27:47 +0800 | [diff] [blame] | 1214 | if (IS_ERR(new_dir_page)) |
| 1215 | err = PTR_ERR(new_dir_page); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1216 | goto out_old_dir; |
Jaegeuk Kim | 3e19886 | 2016-06-09 14:57:19 -0700 | [diff] [blame] | 1217 | } |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1218 | } |
| 1219 | } |
| 1220 | |
| 1221 | /* |
| 1222 | * If cross rename between file and directory those are not |
| 1223 | * in the same directory, we will inc nlink of file's parent |
| 1224 | * later, so we should check upper boundary of its nlink. |
| 1225 | */ |
| 1226 | if ((!old_dir_entry || !new_dir_entry) && |
| 1227 | old_dir_entry != new_dir_entry) { |
| 1228 | old_nlink = old_dir_entry ? -1 : 1; |
| 1229 | new_nlink = -old_nlink; |
| 1230 | err = -EMLINK; |
Kinglong Mee | e2f0e96 | 2017-03-04 21:48:28 +0800 | [diff] [blame] | 1231 | if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) || |
| 1232 | (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX)) |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1233 | goto out_new_dir; |
| 1234 | } |
| 1235 | |
Jaegeuk Kim | 2c4db1a | 2016-01-07 14:15:04 -0800 | [diff] [blame] | 1236 | f2fs_balance_fs(sbi, true); |
Jaegeuk Kim | 00623e6 | 2015-12-22 11:56:08 -0800 | [diff] [blame] | 1237 | |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1238 | f2fs_lock_op(sbi); |
| 1239 | |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1240 | /* update ".." directory entry info of old dentry */ |
| 1241 | if (old_dir_entry) |
| 1242 | f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); |
| 1243 | |
| 1244 | /* update ".." directory entry info of new dentry */ |
| 1245 | if (new_dir_entry) |
| 1246 | f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir); |
| 1247 | |
| 1248 | /* update directory entry info of old dir inode */ |
| 1249 | f2fs_set_link(old_dir, old_entry, old_page, new_inode); |
| 1250 | |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1251 | f2fs_down_write(&F2FS_I(old_inode)->i_sem); |
Chao Yu | 2a60637 | 2019-11-07 14:12:05 +0800 | [diff] [blame] | 1252 | if (!old_dir_entry) |
| 1253 | file_lost_pino(old_inode); |
| 1254 | else |
| 1255 | /* adjust dir's i_pino to pass fsck check */ |
| 1256 | f2fs_i_pino_write(old_inode, new_dir->i_ino); |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1257 | f2fs_up_write(&F2FS_I(old_inode)->i_sem); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1258 | |
Jeff Layton | c62ebd3 | 2023-07-05 15:01:08 -0400 | [diff] [blame] | 1259 | inode_set_ctime_current(old_dir); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1260 | if (old_nlink) { |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1261 | f2fs_down_write(&F2FS_I(old_dir)->i_sem); |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1262 | f2fs_i_links_write(old_dir, old_nlink > 0); |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1263 | f2fs_up_write(&F2FS_I(old_dir)->i_sem); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1264 | } |
Jaegeuk Kim | 7c45729 | 2016-10-14 11:51:23 -0700 | [diff] [blame] | 1265 | f2fs_mark_inode_dirty_sync(old_dir, false); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1266 | |
| 1267 | /* update directory entry info of new dir inode */ |
| 1268 | f2fs_set_link(new_dir, new_entry, new_page, old_inode); |
| 1269 | |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1270 | f2fs_down_write(&F2FS_I(new_inode)->i_sem); |
Chao Yu | 2a60637 | 2019-11-07 14:12:05 +0800 | [diff] [blame] | 1271 | if (!new_dir_entry) |
| 1272 | file_lost_pino(new_inode); |
| 1273 | else |
| 1274 | /* adjust dir's i_pino to pass fsck check */ |
| 1275 | f2fs_i_pino_write(new_inode, old_dir->i_ino); |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1276 | f2fs_up_write(&F2FS_I(new_inode)->i_sem); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1277 | |
Jeff Layton | c62ebd3 | 2023-07-05 15:01:08 -0400 | [diff] [blame] | 1278 | inode_set_ctime_current(new_dir); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1279 | if (new_nlink) { |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1280 | f2fs_down_write(&F2FS_I(new_dir)->i_sem); |
Jaegeuk Kim | a196124 | 2016-05-20 09:43:20 -0700 | [diff] [blame] | 1281 | f2fs_i_links_write(new_dir, new_nlink > 0); |
Tim Murray | e4544b6 | 2022-01-07 12:48:44 -0800 | [diff] [blame] | 1282 | f2fs_up_write(&F2FS_I(new_dir)->i_sem); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1283 | } |
Jaegeuk Kim | 7c45729 | 2016-10-14 11:51:23 -0700 | [diff] [blame] | 1284 | f2fs_mark_inode_dirty_sync(new_dir, false); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1285 | |
Chao Yu | 63189b7 | 2018-03-08 14:22:56 +0800 | [diff] [blame] | 1286 | if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { |
Chao Yu | 4d57b86 | 2018-05-30 00:20:41 +0800 | [diff] [blame] | 1287 | f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO); |
| 1288 | f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); |
Junling Zheng | 93cf93f | 2018-03-07 12:07:49 +0800 | [diff] [blame] | 1289 | } |
Jaegeuk Kim | 0a007b97 | 2017-12-28 08:09:44 -0800 | [diff] [blame] | 1290 | |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1291 | f2fs_unlock_op(sbi); |
Jaegeuk Kim | b7e1d80 | 2014-11-09 22:15:31 -0800 | [diff] [blame] | 1292 | |
| 1293 | if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) |
| 1294 | f2fs_sync_fs(sbi->sb, 1); |
Sahitya Tummala | 6390398 | 2018-10-05 10:47:40 +0530 | [diff] [blame] | 1295 | |
| 1296 | f2fs_update_time(sbi, REQ_TIME); |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1297 | return 0; |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1298 | out_new_dir: |
| 1299 | if (new_dir_entry) { |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1300 | f2fs_put_page(new_dir_page, 0); |
| 1301 | } |
| 1302 | out_old_dir: |
| 1303 | if (old_dir_entry) { |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1304 | f2fs_put_page(old_dir_page, 0); |
| 1305 | } |
| 1306 | out_new: |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1307 | f2fs_put_page(new_page, 0); |
| 1308 | out_old: |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1309 | f2fs_put_page(old_page, 0); |
| 1310 | out: |
| 1311 | return err; |
| 1312 | } |
| 1313 | |
Christian Brauner | e18275a | 2023-01-13 12:49:17 +0100 | [diff] [blame] | 1314 | static int f2fs_rename2(struct mnt_idmap *idmap, |
Christian Brauner | 549c729 | 2021-01-21 14:19:43 +0100 | [diff] [blame] | 1315 | struct inode *old_dir, struct dentry *old_dentry, |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1316 | struct inode *new_dir, struct dentry *new_dentry, |
| 1317 | unsigned int flags) |
| 1318 | { |
Eric Biggers | 2e45b07 | 2017-11-29 12:35:30 -0800 | [diff] [blame] | 1319 | int err; |
| 1320 | |
Chao Yu | 7e01e7ad | 2015-05-19 17:37:26 +0800 | [diff] [blame] | 1321 | if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT)) |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1322 | return -EINVAL; |
| 1323 | |
Chao Yu | 5f23ffd | 2023-11-28 17:31:29 +0800 | [diff] [blame] | 1324 | trace_f2fs_rename_start(old_dir, old_dentry, new_dir, new_dentry, |
| 1325 | flags); |
| 1326 | |
Eric Biggers | 2e45b07 | 2017-11-29 12:35:30 -0800 | [diff] [blame] | 1327 | err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry, |
| 1328 | flags); |
| 1329 | if (err) |
| 1330 | return err; |
| 1331 | |
Chao Yu | 5f23ffd | 2023-11-28 17:31:29 +0800 | [diff] [blame] | 1332 | if (flags & RENAME_EXCHANGE) |
| 1333 | err = f2fs_cross_rename(old_dir, old_dentry, |
| 1334 | new_dir, new_dentry); |
| 1335 | else |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1336 | /* |
| 1337 | * VFS has already handled the new dentry existence case, |
| 1338 | * here, we just deal with "RENAME_NOREPLACE" as regular rename. |
| 1339 | */ |
Chao Yu | 5f23ffd | 2023-11-28 17:31:29 +0800 | [diff] [blame] | 1340 | err = f2fs_rename(idmap, old_dir, old_dentry, |
Chao Yu | 984fc4e | 2022-02-04 13:24:56 +0800 | [diff] [blame] | 1341 | new_dir, new_dentry, flags); |
Chao Yu | 5f23ffd | 2023-11-28 17:31:29 +0800 | [diff] [blame] | 1342 | |
| 1343 | trace_f2fs_rename_end(old_dentry, new_dentry, flags, err); |
| 1344 | return err; |
Chao Yu | 32f9bc2 | 2014-07-12 19:13:54 +0800 | [diff] [blame] | 1345 | } |
| 1346 | |
Al Viro | 6b25539 | 2015-11-17 10:20:54 -0500 | [diff] [blame] | 1347 | static const char *f2fs_encrypted_get_link(struct dentry *dentry, |
Al Viro | fceef39 | 2015-12-29 15:58:39 -0500 | [diff] [blame] | 1348 | struct inode *inode, |
| 1349 | struct delayed_call *done) |
Chao Yu | 50732df | 2014-06-19 16:23:19 +0800 | [diff] [blame] | 1350 | { |
Eric Biggers | f2329cb | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 1351 | struct page *page; |
| 1352 | const char *target; |
Chao Yu | 50732df | 2014-06-19 16:23:19 +0800 | [diff] [blame] | 1353 | |
Al Viro | 6b25539 | 2015-11-17 10:20:54 -0500 | [diff] [blame] | 1354 | if (!dentry) |
| 1355 | return ERR_PTR(-ECHILD); |
| 1356 | |
Eric Biggers | f2329cb | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 1357 | page = read_mapping_page(inode->i_mapping, 0, NULL); |
| 1358 | if (IS_ERR(page)) |
| 1359 | return ERR_CAST(page); |
Chao Yu | 50732df | 2014-06-19 16:23:19 +0800 | [diff] [blame] | 1360 | |
Eric Biggers | f2329cb | 2018-01-11 23:26:49 -0500 | [diff] [blame] | 1361 | target = fscrypt_get_symlink(inode, page_address(page), |
| 1362 | inode->i_sb->s_blocksize, done); |
| 1363 | put_page(page); |
| 1364 | return target; |
Chao Yu | 50732df | 2014-06-19 16:23:19 +0800 | [diff] [blame] | 1365 | } |
| 1366 | |
Christian Brauner | b74d24f | 2023-01-13 12:49:12 +0100 | [diff] [blame] | 1367 | static int f2fs_encrypted_symlink_getattr(struct mnt_idmap *idmap, |
Eric Biggers | 461b43a | 2021-07-01 23:53:48 -0700 | [diff] [blame] | 1368 | const struct path *path, |
| 1369 | struct kstat *stat, u32 request_mask, |
| 1370 | unsigned int query_flags) |
| 1371 | { |
Christian Brauner | b74d24f | 2023-01-13 12:49:12 +0100 | [diff] [blame] | 1372 | f2fs_getattr(idmap, path, stat, request_mask, query_flags); |
Eric Biggers | 461b43a | 2021-07-01 23:53:48 -0700 | [diff] [blame] | 1373 | |
| 1374 | return fscrypt_symlink_getattr(path, stat); |
| 1375 | } |
| 1376 | |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 1377 | const struct inode_operations f2fs_encrypted_symlink_inode_operations = { |
Jack Qiu | a87aff1 | 2020-07-24 16:55:28 +0800 | [diff] [blame] | 1378 | .get_link = f2fs_encrypted_get_link, |
Eric Biggers | 461b43a | 2021-07-01 23:53:48 -0700 | [diff] [blame] | 1379 | .getattr = f2fs_encrypted_symlink_getattr, |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 1380 | .setattr = f2fs_setattr, |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 1381 | .listxattr = f2fs_listxattr, |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 1382 | }; |
Jaegeuk Kim | cbaf042 | 2015-04-29 15:10:53 -0700 | [diff] [blame] | 1383 | |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1384 | const struct inode_operations f2fs_dir_inode_operations = { |
| 1385 | .create = f2fs_create, |
| 1386 | .lookup = f2fs_lookup, |
| 1387 | .link = f2fs_link, |
| 1388 | .unlink = f2fs_unlink, |
| 1389 | .symlink = f2fs_symlink, |
| 1390 | .mkdir = f2fs_mkdir, |
| 1391 | .rmdir = f2fs_rmdir, |
| 1392 | .mknod = f2fs_mknod, |
Miklos Szeredi | 2773bf0 | 2016-09-27 11:03:58 +0200 | [diff] [blame] | 1393 | .rename = f2fs_rename2, |
Chao Yu | 50732df | 2014-06-19 16:23:19 +0800 | [diff] [blame] | 1394 | .tmpfile = f2fs_tmpfile, |
Jaegeuk Kim | 2d4d9fb5 | 2013-06-07 16:33:07 +0900 | [diff] [blame] | 1395 | .getattr = f2fs_getattr, |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1396 | .setattr = f2fs_setattr, |
Christian Brauner | cac2f8b | 2022-09-22 17:17:00 +0200 | [diff] [blame] | 1397 | .get_inode_acl = f2fs_get_acl, |
Christoph Hellwig | a6dda0e | 2013-12-20 05:16:45 -0800 | [diff] [blame] | 1398 | .set_acl = f2fs_set_acl, |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1399 | .listxattr = f2fs_listxattr, |
Chao Yu | 7975f34 | 2019-07-22 18:03:50 +0800 | [diff] [blame] | 1400 | .fiemap = f2fs_fiemap, |
Miklos Szeredi | 9b1bb01 | 2021-04-07 14:36:43 +0200 | [diff] [blame] | 1401 | .fileattr_get = f2fs_fileattr_get, |
| 1402 | .fileattr_set = f2fs_fileattr_set, |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1403 | }; |
| 1404 | |
| 1405 | const struct inode_operations f2fs_symlink_inode_operations = { |
Jack Qiu | a87aff1 | 2020-07-24 16:55:28 +0800 | [diff] [blame] | 1406 | .get_link = f2fs_get_link, |
Jaegeuk Kim | 2d4d9fb5 | 2013-06-07 16:33:07 +0900 | [diff] [blame] | 1407 | .getattr = f2fs_getattr, |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1408 | .setattr = f2fs_setattr, |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1409 | .listxattr = f2fs_listxattr, |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1410 | }; |
| 1411 | |
| 1412 | const struct inode_operations f2fs_special_inode_operations = { |
Jaegeuk Kim | 2d4d9fb5 | 2013-06-07 16:33:07 +0900 | [diff] [blame] | 1413 | .getattr = f2fs_getattr, |
Jack Qiu | a87aff1 | 2020-07-24 16:55:28 +0800 | [diff] [blame] | 1414 | .setattr = f2fs_setattr, |
Christian Brauner | cac2f8b | 2022-09-22 17:17:00 +0200 | [diff] [blame] | 1415 | .get_inode_acl = f2fs_get_acl, |
Christoph Hellwig | a6dda0e | 2013-12-20 05:16:45 -0800 | [diff] [blame] | 1416 | .set_acl = f2fs_set_acl, |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1417 | .listxattr = f2fs_listxattr, |
Jaegeuk Kim | 57397d8 | 2012-11-02 17:11:10 +0900 | [diff] [blame] | 1418 | }; |