1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * fs/f2fs/inode.c 4 * 5 * Copyright (c) 2012 Samsung Electronics Co., Ltd. 6 * http://www.samsung.com/ 7 */ 8 #include <linux/fs.h> 9 #include <linux/f2fs_fs.h> 10 #include <linux/writeback.h> 11 #include <linux/sched/mm.h> 12 #include <linux/lz4.h> 13 #include <linux/zstd.h> 14 15 #include "f2fs.h" 16 #include "node.h" 17 #include "segment.h" 18 #include "xattr.h" 19 20 #include <trace/events/f2fs.h> 21 22 #ifdef CONFIG_F2FS_FS_COMPRESSION 23 extern const struct address_space_operations f2fs_compress_aops; 24 #endif 25 26 void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync) 27 { 28 if (is_inode_flag_set(inode, FI_NEW_INODE)) 29 return; 30 31 if (f2fs_readonly(F2FS_I_SB(inode)->sb)) 32 return; 33 34 if (f2fs_inode_dirtied(inode, sync)) 35 return; 36 37 if (f2fs_is_atomic_file(inode)) { 38 set_inode_flag(inode, FI_ATOMIC_DIRTIED); 39 return; 40 } 41 42 mark_inode_dirty_sync(inode); 43 } 44 45 void f2fs_set_inode_flags(struct inode *inode) 46 { 47 unsigned int flags = F2FS_I(inode)->i_flags; 48 unsigned int new_fl = 0; 49 50 if (flags & F2FS_SYNC_FL) 51 new_fl |= S_SYNC; 52 if (flags & F2FS_APPEND_FL) 53 new_fl |= S_APPEND; 54 if (flags & F2FS_IMMUTABLE_FL) 55 new_fl |= S_IMMUTABLE; 56 if (flags & F2FS_NOATIME_FL) 57 new_fl |= S_NOATIME; 58 if (flags & F2FS_DIRSYNC_FL) 59 new_fl |= S_DIRSYNC; 60 if (file_is_encrypt(inode)) 61 new_fl |= S_ENCRYPTED; 62 if (file_is_verity(inode)) 63 new_fl |= S_VERITY; 64 if (flags & F2FS_CASEFOLD_FL) 65 new_fl |= S_CASEFOLD; 66 inode_set_flags(inode, new_fl, 67 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC| 68 S_ENCRYPTED|S_VERITY|S_CASEFOLD); 69 } 70 71 static void __get_inode_rdev(struct inode *inode, struct page *node_page) 72 { 73 __le32 *addr = get_dnode_addr(inode, node_page); 74 75 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 76 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 77 if (addr[0]) 78 inode->i_rdev = old_decode_dev(le32_to_cpu(addr[0])); 79 else 80 inode->i_rdev = new_decode_dev(le32_to_cpu(addr[1])); 81 } 82 } 83 84 static void __set_inode_rdev(struct inode *inode, struct page *node_page) 85 { 86 __le32 *addr = get_dnode_addr(inode, node_page); 87 88 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { 89 if (old_valid_dev(inode->i_rdev)) { 90 addr[0] = cpu_to_le32(old_encode_dev(inode->i_rdev)); 91 addr[1] = 0; 92 } else { 93 addr[0] = 0; 94 addr[1] = cpu_to_le32(new_encode_dev(inode->i_rdev)); 95 addr[2] = 0; 96 } 97 } 98 } 99 100 static void __recover_inline_status(struct inode *inode, struct page *ipage) 101 { 102 void *inline_data = inline_data_addr(inode, ipage); 103 __le32 *start = inline_data; 104 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); 105 106 while (start < end) { 107 if (*start++) { 108 f2fs_wait_on_page_writeback(ipage, NODE, true, true); 109 110 set_inode_flag(inode, FI_DATA_EXIST); 111 set_raw_inline(inode, F2FS_INODE(ipage)); 112 set_page_dirty(ipage); 113 return; 114 } 115 } 116 return; 117 } 118 119 static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 120 { 121 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 122 123 if (!f2fs_sb_has_inode_chksum(sbi)) 124 return false; 125 126 if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR)) 127 return false; 128 129 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize), 130 i_inode_checksum)) 131 return false; 132 133 return true; 134 } 135 136 static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 137 { 138 struct f2fs_node *node = F2FS_NODE(page); 139 struct f2fs_inode *ri = &node->i; 140 __le32 ino = node->footer.ino; 141 __le32 gen = ri->i_generation; 142 __u32 chksum, chksum_seed; 143 __u32 dummy_cs = 0; 144 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); 145 unsigned int cs_size = sizeof(dummy_cs); 146 147 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, 148 sizeof(ino)); 149 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); 150 151 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); 152 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); 153 offset += cs_size; 154 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, 155 F2FS_BLKSIZE - offset); 156 return chksum; 157 } 158 159 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) 160 { 161 struct f2fs_inode *ri; 162 __u32 provided, calculated; 163 164 if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))) 165 return true; 166 167 #ifdef CONFIG_F2FS_CHECK_FS 168 if (!f2fs_enable_inode_chksum(sbi, page)) 169 #else 170 if (!f2fs_enable_inode_chksum(sbi, page) || 171 PageDirty(page) || 172 folio_test_writeback(page_folio(page))) 173 #endif 174 return true; 175 176 ri = &F2FS_NODE(page)->i; 177 provided = le32_to_cpu(ri->i_inode_checksum); 178 calculated = f2fs_inode_chksum(sbi, page); 179 180 if (provided != calculated) 181 f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x", 182 page_folio(page)->index, ino_of_node(page), 183 provided, calculated); 184 185 return provided == calculated; 186 } 187 188 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) 189 { 190 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 191 192 if (!f2fs_enable_inode_chksum(sbi, page)) 193 return; 194 195 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); 196 } 197 198 static bool sanity_check_compress_inode(struct inode *inode, 199 struct f2fs_inode *ri) 200 { 201 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 202 unsigned char clevel; 203 204 if (ri->i_compress_algorithm >= COMPRESS_MAX) { 205 f2fs_warn(sbi, 206 "%s: inode (ino=%lx) has unsupported compress algorithm: %u, run fsck to fix", 207 __func__, inode->i_ino, ri->i_compress_algorithm); 208 return false; 209 } 210 if (le64_to_cpu(ri->i_compr_blocks) > 211 SECTOR_TO_BLOCK(inode->i_blocks)) { 212 f2fs_warn(sbi, 213 "%s: inode (ino=%lx) has inconsistent i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix", 214 __func__, inode->i_ino, le64_to_cpu(ri->i_compr_blocks), 215 SECTOR_TO_BLOCK(inode->i_blocks)); 216 return false; 217 } 218 if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE || 219 ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) { 220 f2fs_warn(sbi, 221 "%s: inode (ino=%lx) has unsupported log cluster size: %u, run fsck to fix", 222 __func__, inode->i_ino, ri->i_log_cluster_size); 223 return false; 224 } 225 226 clevel = le16_to_cpu(ri->i_compress_flag) >> 227 COMPRESS_LEVEL_OFFSET; 228 switch (ri->i_compress_algorithm) { 229 case COMPRESS_LZO: 230 #ifdef CONFIG_F2FS_FS_LZO 231 if (clevel) 232 goto err_level; 233 #endif 234 break; 235 case COMPRESS_LZORLE: 236 #ifdef CONFIG_F2FS_FS_LZORLE 237 if (clevel) 238 goto err_level; 239 #endif 240 break; 241 case COMPRESS_LZ4: 242 #ifdef CONFIG_F2FS_FS_LZ4 243 #ifdef CONFIG_F2FS_FS_LZ4HC 244 if (clevel && 245 (clevel < LZ4HC_MIN_CLEVEL || clevel > LZ4HC_MAX_CLEVEL)) 246 goto err_level; 247 #else 248 if (clevel) 249 goto err_level; 250 #endif 251 #endif 252 break; 253 case COMPRESS_ZSTD: 254 #ifdef CONFIG_F2FS_FS_ZSTD 255 if (clevel < zstd_min_clevel() || clevel > zstd_max_clevel()) 256 goto err_level; 257 #endif 258 break; 259 default: 260 goto err_level; 261 } 262 263 return true; 264 err_level: 265 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported compress level: %u, run fsck to fix", 266 __func__, inode->i_ino, clevel); 267 return false; 268 } 269 270 static bool sanity_check_inode(struct inode *inode, struct page *node_page) 271 { 272 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 273 struct f2fs_inode_info *fi = F2FS_I(inode); 274 struct f2fs_inode *ri = F2FS_INODE(node_page); 275 unsigned long long iblocks; 276 277 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks); 278 if (!iblocks) { 279 f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.", 280 __func__, inode->i_ino, iblocks); 281 return false; 282 } 283 284 if (ino_of_node(node_page) != nid_of_node(node_page)) { 285 f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.", 286 __func__, inode->i_ino, 287 ino_of_node(node_page), nid_of_node(node_page)); 288 return false; 289 } 290 291 if (f2fs_has_extra_attr(inode)) { 292 if (!f2fs_sb_has_extra_attr(sbi)) { 293 f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off", 294 __func__, inode->i_ino); 295 return false; 296 } 297 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE || 298 fi->i_extra_isize < F2FS_MIN_EXTRA_ATTR_SIZE || 299 fi->i_extra_isize % sizeof(__le32)) { 300 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu", 301 __func__, inode->i_ino, fi->i_extra_isize, 302 F2FS_TOTAL_EXTRA_ATTR_SIZE); 303 return false; 304 } 305 if (f2fs_sb_has_flexible_inline_xattr(sbi) && 306 f2fs_has_inline_xattr(inode) && 307 (!fi->i_inline_xattr_size || 308 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) { 309 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %lu", 310 __func__, inode->i_ino, fi->i_inline_xattr_size, 311 MAX_INLINE_XATTR_SIZE); 312 return false; 313 } 314 if (f2fs_sb_has_compression(sbi) && 315 fi->i_flags & F2FS_COMPR_FL && 316 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 317 i_compress_flag)) { 318 if (!sanity_check_compress_inode(inode, ri)) 319 return false; 320 } 321 } 322 323 if (!f2fs_sb_has_extra_attr(sbi)) { 324 if (f2fs_sb_has_project_quota(sbi)) { 325 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 326 __func__, inode->i_ino, F2FS_FEATURE_PRJQUOTA); 327 return false; 328 } 329 if (f2fs_sb_has_inode_chksum(sbi)) { 330 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 331 __func__, inode->i_ino, F2FS_FEATURE_INODE_CHKSUM); 332 return false; 333 } 334 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 335 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 336 __func__, inode->i_ino, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR); 337 return false; 338 } 339 if (f2fs_sb_has_inode_crtime(sbi)) { 340 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 341 __func__, inode->i_ino, F2FS_FEATURE_INODE_CRTIME); 342 return false; 343 } 344 if (f2fs_sb_has_compression(sbi)) { 345 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 346 __func__, inode->i_ino, F2FS_FEATURE_COMPRESSION); 347 return false; 348 } 349 } 350 351 if (f2fs_sanity_check_inline_data(inode, node_page)) { 352 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix", 353 __func__, inode->i_ino, inode->i_mode); 354 return false; 355 } 356 357 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) { 358 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix", 359 __func__, inode->i_ino, inode->i_mode); 360 return false; 361 } 362 363 if ((fi->i_flags & F2FS_CASEFOLD_FL) && !f2fs_sb_has_casefold(sbi)) { 364 f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off", 365 __func__, inode->i_ino); 366 return false; 367 } 368 369 if (fi->i_xattr_nid && f2fs_check_nid_range(sbi, fi->i_xattr_nid)) { 370 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_xattr_nid: %u, run fsck to fix.", 371 __func__, inode->i_ino, fi->i_xattr_nid); 372 return false; 373 } 374 375 return true; 376 } 377 378 static void init_idisk_time(struct inode *inode) 379 { 380 struct f2fs_inode_info *fi = F2FS_I(inode); 381 382 fi->i_disk_time[0] = inode_get_atime(inode); 383 fi->i_disk_time[1] = inode_get_ctime(inode); 384 fi->i_disk_time[2] = inode_get_mtime(inode); 385 } 386 387 static int do_read_inode(struct inode *inode) 388 { 389 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 390 struct f2fs_inode_info *fi = F2FS_I(inode); 391 struct page *node_page; 392 struct f2fs_inode *ri; 393 projid_t i_projid; 394 395 /* Check if ino is within scope */ 396 if (f2fs_check_nid_range(sbi, inode->i_ino)) 397 return -EINVAL; 398 399 node_page = f2fs_get_node_page(sbi, inode->i_ino); 400 if (IS_ERR(node_page)) 401 return PTR_ERR(node_page); 402 403 ri = F2FS_INODE(node_page); 404 405 inode->i_mode = le16_to_cpu(ri->i_mode); 406 i_uid_write(inode, le32_to_cpu(ri->i_uid)); 407 i_gid_write(inode, le32_to_cpu(ri->i_gid)); 408 set_nlink(inode, le32_to_cpu(ri->i_links)); 409 inode->i_size = le64_to_cpu(ri->i_size); 410 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); 411 412 inode_set_atime(inode, le64_to_cpu(ri->i_atime), 413 le32_to_cpu(ri->i_atime_nsec)); 414 inode_set_ctime(inode, le64_to_cpu(ri->i_ctime), 415 le32_to_cpu(ri->i_ctime_nsec)); 416 inode_set_mtime(inode, le64_to_cpu(ri->i_mtime), 417 le32_to_cpu(ri->i_mtime_nsec)); 418 inode->i_generation = le32_to_cpu(ri->i_generation); 419 if (S_ISDIR(inode->i_mode)) 420 fi->i_current_depth = le32_to_cpu(ri->i_current_depth); 421 else if (S_ISREG(inode->i_mode)) 422 fi->i_gc_failures = le16_to_cpu(ri->i_gc_failures); 423 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); 424 fi->i_flags = le32_to_cpu(ri->i_flags); 425 if (S_ISREG(inode->i_mode)) 426 fi->i_flags &= ~F2FS_PROJINHERIT_FL; 427 bitmap_zero(fi->flags, FI_MAX); 428 fi->i_advise = ri->i_advise; 429 fi->i_pino = le32_to_cpu(ri->i_pino); 430 fi->i_dir_level = ri->i_dir_level; 431 432 get_inline_info(inode, ri); 433 434 fi->i_extra_isize = f2fs_has_extra_attr(inode) ? 435 le16_to_cpu(ri->i_extra_isize) : 0; 436 437 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 438 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); 439 } else if (f2fs_has_inline_xattr(inode) || 440 f2fs_has_inline_dentry(inode)) { 441 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 442 } else { 443 444 /* 445 * Previous inline data or directory always reserved 200 bytes 446 * in inode layout, even if inline_xattr is disabled. In order 447 * to keep inline_dentry's structure for backward compatibility, 448 * we get the space back only from inline_data. 449 */ 450 fi->i_inline_xattr_size = 0; 451 } 452 453 if (!sanity_check_inode(inode, node_page)) { 454 f2fs_put_page(node_page, 1); 455 set_sbi_flag(sbi, SBI_NEED_FSCK); 456 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); 457 return -EFSCORRUPTED; 458 } 459 460 /* check data exist */ 461 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) 462 __recover_inline_status(inode, node_page); 463 464 /* try to recover cold bit for non-dir inode */ 465 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) { 466 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 467 set_cold_node(node_page, false); 468 set_page_dirty(node_page); 469 } 470 471 /* get rdev by using inline_info */ 472 __get_inode_rdev(inode, node_page); 473 474 if (!f2fs_need_inode_block_update(sbi, inode->i_ino)) 475 fi->last_disk_size = inode->i_size; 476 477 if (fi->i_flags & F2FS_PROJINHERIT_FL) 478 set_inode_flag(inode, FI_PROJ_INHERIT); 479 480 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) && 481 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) 482 i_projid = (projid_t)le32_to_cpu(ri->i_projid); 483 else 484 i_projid = F2FS_DEF_PROJID; 485 fi->i_projid = make_kprojid(&init_user_ns, i_projid); 486 487 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) && 488 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { 489 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime); 490 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec); 491 } 492 493 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) && 494 (fi->i_flags & F2FS_COMPR_FL)) { 495 if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 496 i_compress_flag)) { 497 unsigned short compress_flag; 498 499 atomic_set(&fi->i_compr_blocks, 500 le64_to_cpu(ri->i_compr_blocks)); 501 fi->i_compress_algorithm = ri->i_compress_algorithm; 502 fi->i_log_cluster_size = ri->i_log_cluster_size; 503 compress_flag = le16_to_cpu(ri->i_compress_flag); 504 fi->i_compress_level = compress_flag >> 505 COMPRESS_LEVEL_OFFSET; 506 fi->i_compress_flag = compress_flag & 507 GENMASK(COMPRESS_LEVEL_OFFSET - 1, 0); 508 fi->i_cluster_size = BIT(fi->i_log_cluster_size); 509 set_inode_flag(inode, FI_COMPRESSED_FILE); 510 } 511 } 512 513 init_idisk_time(inode); 514 515 if (!sanity_check_extent_cache(inode, node_page)) { 516 f2fs_put_page(node_page, 1); 517 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); 518 return -EFSCORRUPTED; 519 } 520 521 /* Need all the flag bits */ 522 f2fs_init_read_extent_tree(inode, node_page); 523 f2fs_init_age_extent_tree(inode); 524 525 f2fs_put_page(node_page, 1); 526 527 stat_inc_inline_xattr(inode); 528 stat_inc_inline_inode(inode); 529 stat_inc_inline_dir(inode); 530 stat_inc_compr_inode(inode); 531 stat_add_compr_blocks(inode, atomic_read(&fi->i_compr_blocks)); 532 533 return 0; 534 } 535 536 static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino) 537 { 538 return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) || 539 ino == F2FS_COMPRESS_INO(sbi); 540 } 541 542 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) 543 { 544 struct f2fs_sb_info *sbi = F2FS_SB(sb); 545 struct inode *inode; 546 int ret = 0; 547 548 inode = iget_locked(sb, ino); 549 if (!inode) 550 return ERR_PTR(-ENOMEM); 551 552 if (!(inode->i_state & I_NEW)) { 553 if (is_meta_ino(sbi, ino)) { 554 f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino); 555 set_sbi_flag(sbi, SBI_NEED_FSCK); 556 ret = -EFSCORRUPTED; 557 trace_f2fs_iget_exit(inode, ret); 558 iput(inode); 559 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); 560 return ERR_PTR(ret); 561 } 562 563 trace_f2fs_iget(inode); 564 return inode; 565 } 566 567 if (is_meta_ino(sbi, ino)) 568 goto make_now; 569 570 ret = do_read_inode(inode); 571 if (ret) 572 goto bad_inode; 573 make_now: 574 if (ino == F2FS_NODE_INO(sbi)) { 575 inode->i_mapping->a_ops = &f2fs_node_aops; 576 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 577 } else if (ino == F2FS_META_INO(sbi)) { 578 inode->i_mapping->a_ops = &f2fs_meta_aops; 579 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 580 } else if (ino == F2FS_COMPRESS_INO(sbi)) { 581 #ifdef CONFIG_F2FS_FS_COMPRESSION 582 inode->i_mapping->a_ops = &f2fs_compress_aops; 583 /* 584 * generic_error_remove_folio only truncates pages of regular 585 * inode 586 */ 587 inode->i_mode |= S_IFREG; 588 #endif 589 mapping_set_gfp_mask(inode->i_mapping, 590 GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE); 591 } else if (S_ISREG(inode->i_mode)) { 592 inode->i_op = &f2fs_file_inode_operations; 593 inode->i_fop = &f2fs_file_operations; 594 inode->i_mapping->a_ops = &f2fs_dblock_aops; 595 } else if (S_ISDIR(inode->i_mode)) { 596 inode->i_op = &f2fs_dir_inode_operations; 597 inode->i_fop = &f2fs_dir_operations; 598 inode->i_mapping->a_ops = &f2fs_dblock_aops; 599 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 600 } else if (S_ISLNK(inode->i_mode)) { 601 if (file_is_encrypt(inode)) 602 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 603 else 604 inode->i_op = &f2fs_symlink_inode_operations; 605 inode_nohighmem(inode); 606 inode->i_mapping->a_ops = &f2fs_dblock_aops; 607 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 608 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 609 inode->i_op = &f2fs_special_inode_operations; 610 init_special_inode(inode, inode->i_mode, inode->i_rdev); 611 } else { 612 ret = -EIO; 613 goto bad_inode; 614 } 615 f2fs_set_inode_flags(inode); 616 617 unlock_new_inode(inode); 618 trace_f2fs_iget(inode); 619 return inode; 620 621 bad_inode: 622 f2fs_inode_synced(inode); 623 iget_failed(inode); 624 trace_f2fs_iget_exit(inode, ret); 625 return ERR_PTR(ret); 626 } 627 628 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) 629 { 630 struct inode *inode; 631 retry: 632 inode = f2fs_iget(sb, ino); 633 if (IS_ERR(inode)) { 634 if (PTR_ERR(inode) == -ENOMEM) { 635 memalloc_retry_wait(GFP_NOFS); 636 goto retry; 637 } 638 } 639 return inode; 640 } 641 642 void f2fs_update_inode(struct inode *inode, struct page *node_page) 643 { 644 struct f2fs_inode_info *fi = F2FS_I(inode); 645 struct f2fs_inode *ri; 646 struct extent_tree *et = fi->extent_tree[EX_READ]; 647 648 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 649 set_page_dirty(node_page); 650 651 f2fs_inode_synced(inode); 652 653 ri = F2FS_INODE(node_page); 654 655 ri->i_mode = cpu_to_le16(inode->i_mode); 656 ri->i_advise = fi->i_advise; 657 ri->i_uid = cpu_to_le32(i_uid_read(inode)); 658 ri->i_gid = cpu_to_le32(i_gid_read(inode)); 659 ri->i_links = cpu_to_le32(inode->i_nlink); 660 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); 661 662 if (!f2fs_is_atomic_file(inode) || 663 is_inode_flag_set(inode, FI_ATOMIC_COMMITTED)) 664 ri->i_size = cpu_to_le64(i_size_read(inode)); 665 666 if (et) { 667 read_lock(&et->lock); 668 set_raw_read_extent(&et->largest, &ri->i_ext); 669 read_unlock(&et->lock); 670 } else { 671 memset(&ri->i_ext, 0, sizeof(ri->i_ext)); 672 } 673 set_raw_inline(inode, ri); 674 675 ri->i_atime = cpu_to_le64(inode_get_atime_sec(inode)); 676 ri->i_ctime = cpu_to_le64(inode_get_ctime_sec(inode)); 677 ri->i_mtime = cpu_to_le64(inode_get_mtime_sec(inode)); 678 ri->i_atime_nsec = cpu_to_le32(inode_get_atime_nsec(inode)); 679 ri->i_ctime_nsec = cpu_to_le32(inode_get_ctime_nsec(inode)); 680 ri->i_mtime_nsec = cpu_to_le32(inode_get_mtime_nsec(inode)); 681 if (S_ISDIR(inode->i_mode)) 682 ri->i_current_depth = cpu_to_le32(fi->i_current_depth); 683 else if (S_ISREG(inode->i_mode)) 684 ri->i_gc_failures = cpu_to_le16(fi->i_gc_failures); 685 ri->i_xattr_nid = cpu_to_le32(fi->i_xattr_nid); 686 ri->i_flags = cpu_to_le32(fi->i_flags); 687 ri->i_pino = cpu_to_le32(fi->i_pino); 688 ri->i_generation = cpu_to_le32(inode->i_generation); 689 ri->i_dir_level = fi->i_dir_level; 690 691 if (f2fs_has_extra_attr(inode)) { 692 ri->i_extra_isize = cpu_to_le16(fi->i_extra_isize); 693 694 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode))) 695 ri->i_inline_xattr_size = 696 cpu_to_le16(fi->i_inline_xattr_size); 697 698 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) && 699 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) { 700 projid_t i_projid; 701 702 i_projid = from_kprojid(&init_user_ns, fi->i_projid); 703 ri->i_projid = cpu_to_le32(i_projid); 704 } 705 706 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && 707 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { 708 ri->i_crtime = cpu_to_le64(fi->i_crtime.tv_sec); 709 ri->i_crtime_nsec = cpu_to_le32(fi->i_crtime.tv_nsec); 710 } 711 712 if (f2fs_sb_has_compression(F2FS_I_SB(inode)) && 713 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 714 i_compress_flag)) { 715 unsigned short compress_flag; 716 717 ri->i_compr_blocks = cpu_to_le64( 718 atomic_read(&fi->i_compr_blocks)); 719 ri->i_compress_algorithm = fi->i_compress_algorithm; 720 compress_flag = fi->i_compress_flag | 721 fi->i_compress_level << 722 COMPRESS_LEVEL_OFFSET; 723 ri->i_compress_flag = cpu_to_le16(compress_flag); 724 ri->i_log_cluster_size = fi->i_log_cluster_size; 725 } 726 } 727 728 __set_inode_rdev(inode, node_page); 729 730 /* deleted inode */ 731 if (inode->i_nlink == 0) 732 clear_page_private_inline(node_page); 733 734 init_idisk_time(inode); 735 #ifdef CONFIG_F2FS_CHECK_FS 736 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page); 737 #endif 738 } 739 740 void f2fs_update_inode_page(struct inode *inode) 741 { 742 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 743 struct page *node_page; 744 int count = 0; 745 retry: 746 node_page = f2fs_get_node_page(sbi, inode->i_ino); 747 if (IS_ERR(node_page)) { 748 int err = PTR_ERR(node_page); 749 750 /* The node block was truncated. */ 751 if (err == -ENOENT) 752 return; 753 754 if (err == -ENOMEM || ++count <= DEFAULT_RETRY_IO_COUNT) 755 goto retry; 756 f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_UPDATE_INODE); 757 return; 758 } 759 f2fs_update_inode(inode, node_page); 760 f2fs_put_page(node_page, 1); 761 } 762 763 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) 764 { 765 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 766 767 if (inode->i_ino == F2FS_NODE_INO(sbi) || 768 inode->i_ino == F2FS_META_INO(sbi)) 769 return 0; 770 771 /* 772 * atime could be updated without dirtying f2fs inode in lazytime mode 773 */ 774 if (f2fs_is_time_consistent(inode) && 775 !is_inode_flag_set(inode, FI_DIRTY_INODE)) 776 return 0; 777 778 if (!f2fs_is_checkpoint_ready(sbi)) 779 return -ENOSPC; 780 781 /* 782 * We need to balance fs here to prevent from producing dirty node pages 783 * during the urgent cleaning time when running out of free sections. 784 */ 785 f2fs_update_inode_page(inode); 786 if (wbc && wbc->nr_to_write) 787 f2fs_balance_fs(sbi, true); 788 return 0; 789 } 790 791 /* 792 * Called at the last iput() if i_nlink is zero 793 */ 794 void f2fs_evict_inode(struct inode *inode) 795 { 796 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 797 struct f2fs_inode_info *fi = F2FS_I(inode); 798 nid_t xnid = fi->i_xattr_nid; 799 int err = 0; 800 bool freeze_protected = false; 801 802 f2fs_abort_atomic_write(inode, true); 803 804 if (fi->cow_inode && f2fs_is_cow_file(fi->cow_inode)) { 805 clear_inode_flag(fi->cow_inode, FI_COW_FILE); 806 F2FS_I(fi->cow_inode)->atomic_inode = NULL; 807 iput(fi->cow_inode); 808 fi->cow_inode = NULL; 809 } 810 811 trace_f2fs_evict_inode(inode); 812 truncate_inode_pages_final(&inode->i_data); 813 814 if ((inode->i_nlink || is_bad_inode(inode)) && 815 test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode)) 816 f2fs_invalidate_compress_pages(sbi, inode->i_ino); 817 818 if (inode->i_ino == F2FS_NODE_INO(sbi) || 819 inode->i_ino == F2FS_META_INO(sbi) || 820 inode->i_ino == F2FS_COMPRESS_INO(sbi)) 821 goto out_clear; 822 823 f2fs_bug_on(sbi, get_dirty_pages(inode)); 824 f2fs_remove_dirty_inode(inode); 825 826 f2fs_destroy_extent_tree(inode); 827 828 if (inode->i_nlink || is_bad_inode(inode)) 829 goto no_delete; 830 831 err = f2fs_dquot_initialize(inode); 832 if (err) { 833 err = 0; 834 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 835 } 836 837 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO); 838 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); 839 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); 840 841 if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING)) { 842 sb_start_intwrite(inode->i_sb); 843 freeze_protected = true; 844 } 845 set_inode_flag(inode, FI_NO_ALLOC); 846 i_size_write(inode, 0); 847 retry: 848 if (F2FS_HAS_BLOCKS(inode)) 849 err = f2fs_truncate(inode); 850 851 if (time_to_inject(sbi, FAULT_EVICT_INODE)) 852 err = -EIO; 853 854 if (!err) { 855 f2fs_lock_op(sbi); 856 err = f2fs_remove_inode_page(inode); 857 f2fs_unlock_op(sbi); 858 if (err == -ENOENT) { 859 err = 0; 860 861 /* 862 * in fuzzed image, another node may has the same 863 * block address as inode's, if it was truncated 864 * previously, truncation of inode node will fail. 865 */ 866 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { 867 f2fs_warn(F2FS_I_SB(inode), 868 "f2fs_evict_inode: inconsistent node id, ino:%lu", 869 inode->i_ino); 870 f2fs_inode_synced(inode); 871 set_sbi_flag(sbi, SBI_NEED_FSCK); 872 } 873 } 874 } 875 876 /* give more chances, if ENOMEM case */ 877 if (err == -ENOMEM) { 878 err = 0; 879 goto retry; 880 } 881 882 if (err) { 883 f2fs_update_inode_page(inode); 884 if (dquot_initialize_needed(inode)) 885 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 886 } 887 if (freeze_protected) 888 sb_end_intwrite(inode->i_sb); 889 no_delete: 890 dquot_drop(inode); 891 892 stat_dec_inline_xattr(inode); 893 stat_dec_inline_dir(inode); 894 stat_dec_inline_inode(inode); 895 stat_dec_compr_inode(inode); 896 stat_sub_compr_blocks(inode, 897 atomic_read(&fi->i_compr_blocks)); 898 899 if (likely(!f2fs_cp_error(sbi) && 900 !is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 901 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); 902 else 903 f2fs_inode_synced(inode); 904 905 /* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */ 906 if (inode->i_ino) 907 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, 908 inode->i_ino); 909 if (xnid) 910 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); 911 if (inode->i_nlink) { 912 if (is_inode_flag_set(inode, FI_APPEND_WRITE)) 913 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO); 914 if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) 915 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO); 916 } 917 if (is_inode_flag_set(inode, FI_FREE_NID)) { 918 f2fs_alloc_nid_failed(sbi, inode->i_ino); 919 clear_inode_flag(inode, FI_FREE_NID); 920 } else { 921 /* 922 * If xattr nid is corrupted, we can reach out error condition, 923 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). 924 * In that case, f2fs_check_nid_range() is enough to give a clue. 925 */ 926 } 927 out_clear: 928 fscrypt_put_encryption_info(inode); 929 fsverity_cleanup_inode(inode); 930 clear_inode(inode); 931 } 932 933 /* caller should call f2fs_lock_op() */ 934 void f2fs_handle_failed_inode(struct inode *inode) 935 { 936 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 937 struct node_info ni; 938 int err; 939 940 /* 941 * clear nlink of inode in order to release resource of inode 942 * immediately. 943 */ 944 clear_nlink(inode); 945 946 /* 947 * we must call this to avoid inode being remained as dirty, resulting 948 * in a panic when flushing dirty inodes in gdirty_list. 949 */ 950 f2fs_update_inode_page(inode); 951 f2fs_inode_synced(inode); 952 953 /* don't make bad inode, since it becomes a regular file. */ 954 unlock_new_inode(inode); 955 956 /* 957 * Note: we should add inode to orphan list before f2fs_unlock_op() 958 * so we can prevent losing this orphan when encoutering checkpoint 959 * and following suddenly power-off. 960 */ 961 err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false); 962 if (err) { 963 set_sbi_flag(sbi, SBI_NEED_FSCK); 964 set_inode_flag(inode, FI_FREE_NID); 965 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix."); 966 goto out; 967 } 968 969 if (ni.blk_addr != NULL_ADDR) { 970 err = f2fs_acquire_orphan_inode(sbi); 971 if (err) { 972 set_sbi_flag(sbi, SBI_NEED_FSCK); 973 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix."); 974 } else { 975 f2fs_add_orphan_inode(inode); 976 } 977 f2fs_alloc_nid_done(sbi, inode->i_ino); 978 } else { 979 set_inode_flag(inode, FI_FREE_NID); 980 } 981 982 out: 983 f2fs_unlock_op(sbi); 984 985 /* iput will drop the inode object */ 986 iput(inode); 987 } 988