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/buffer_head.h> 11 #include <linux/writeback.h> 12 #include <linux/sched/mm.h> 13 #include <linux/lz4.h> 14 #include <linux/zstd.h> 15 16 #include "f2fs.h" 17 #include "node.h" 18 #include "segment.h" 19 #include "xattr.h" 20 21 #include <trace/events/f2fs.h> 22 23 #ifdef CONFIG_F2FS_FS_COMPRESSION 24 extern const struct address_space_operations f2fs_compress_aops; 25 #endif 26 27 void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync) 28 { 29 if (is_inode_flag_set(inode, FI_NEW_INODE)) 30 return; 31 32 if (f2fs_inode_dirtied(inode, sync)) 33 return; 34 35 mark_inode_dirty_sync(inode); 36 } 37 38 void f2fs_set_inode_flags(struct inode *inode) 39 { 40 unsigned int flags = F2FS_I(inode)->i_flags; 41 unsigned int new_fl = 0; 42 43 if (flags & F2FS_SYNC_FL) 44 new_fl |= S_SYNC; 45 if (flags & F2FS_APPEND_FL) 46 new_fl |= S_APPEND; 47 if (flags & F2FS_IMMUTABLE_FL) 48 new_fl |= S_IMMUTABLE; 49 if (flags & F2FS_NOATIME_FL) 50 new_fl |= S_NOATIME; 51 if (flags & F2FS_DIRSYNC_FL) 52 new_fl |= S_DIRSYNC; 53 if (file_is_encrypt(inode)) 54 new_fl |= S_ENCRYPTED; 55 if (file_is_verity(inode)) 56 new_fl |= S_VERITY; 57 if (flags & F2FS_CASEFOLD_FL) 58 new_fl |= S_CASEFOLD; 59 inode_set_flags(inode, new_fl, 60 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC| 61 S_ENCRYPTED|S_VERITY|S_CASEFOLD); 62 } 63 64 static void __get_inode_rdev(struct inode *inode, struct page *node_page) 65 { 66 __le32 *addr = get_dnode_addr(inode, node_page); 67 68 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 69 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 70 if (addr[0]) 71 inode->i_rdev = old_decode_dev(le32_to_cpu(addr[0])); 72 else 73 inode->i_rdev = new_decode_dev(le32_to_cpu(addr[1])); 74 } 75 } 76 77 static void __set_inode_rdev(struct inode *inode, struct page *node_page) 78 { 79 __le32 *addr = get_dnode_addr(inode, node_page); 80 81 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { 82 if (old_valid_dev(inode->i_rdev)) { 83 addr[0] = cpu_to_le32(old_encode_dev(inode->i_rdev)); 84 addr[1] = 0; 85 } else { 86 addr[0] = 0; 87 addr[1] = cpu_to_le32(new_encode_dev(inode->i_rdev)); 88 addr[2] = 0; 89 } 90 } 91 } 92 93 static void __recover_inline_status(struct inode *inode, struct page *ipage) 94 { 95 void *inline_data = inline_data_addr(inode, ipage); 96 __le32 *start = inline_data; 97 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); 98 99 while (start < end) { 100 if (*start++) { 101 f2fs_wait_on_page_writeback(ipage, NODE, true, true); 102 103 set_inode_flag(inode, FI_DATA_EXIST); 104 set_raw_inline(inode, F2FS_INODE(ipage)); 105 set_page_dirty(ipage); 106 return; 107 } 108 } 109 return; 110 } 111 112 static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 113 { 114 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 115 116 if (!f2fs_sb_has_inode_chksum(sbi)) 117 return false; 118 119 if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR)) 120 return false; 121 122 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize), 123 i_inode_checksum)) 124 return false; 125 126 return true; 127 } 128 129 static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 130 { 131 struct f2fs_node *node = F2FS_NODE(page); 132 struct f2fs_inode *ri = &node->i; 133 __le32 ino = node->footer.ino; 134 __le32 gen = ri->i_generation; 135 __u32 chksum, chksum_seed; 136 __u32 dummy_cs = 0; 137 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); 138 unsigned int cs_size = sizeof(dummy_cs); 139 140 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, 141 sizeof(ino)); 142 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); 143 144 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); 145 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); 146 offset += cs_size; 147 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, 148 F2FS_BLKSIZE - offset); 149 return chksum; 150 } 151 152 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) 153 { 154 struct f2fs_inode *ri; 155 __u32 provided, calculated; 156 157 if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))) 158 return true; 159 160 #ifdef CONFIG_F2FS_CHECK_FS 161 if (!f2fs_enable_inode_chksum(sbi, page)) 162 #else 163 if (!f2fs_enable_inode_chksum(sbi, page) || 164 PageDirty(page) || 165 folio_test_writeback(page_folio(page))) 166 #endif 167 return true; 168 169 ri = &F2FS_NODE(page)->i; 170 provided = le32_to_cpu(ri->i_inode_checksum); 171 calculated = f2fs_inode_chksum(sbi, page); 172 173 if (provided != calculated) 174 f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x", 175 page->index, ino_of_node(page), provided, calculated); 176 177 return provided == calculated; 178 } 179 180 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) 181 { 182 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 183 184 if (!f2fs_enable_inode_chksum(sbi, page)) 185 return; 186 187 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); 188 } 189 190 static bool sanity_check_compress_inode(struct inode *inode, 191 struct f2fs_inode *ri) 192 { 193 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 194 unsigned char clevel; 195 196 if (ri->i_compress_algorithm >= COMPRESS_MAX) { 197 f2fs_warn(sbi, 198 "%s: inode (ino=%lx) has unsupported compress algorithm: %u, run fsck to fix", 199 __func__, inode->i_ino, ri->i_compress_algorithm); 200 return false; 201 } 202 if (le64_to_cpu(ri->i_compr_blocks) > 203 SECTOR_TO_BLOCK(inode->i_blocks)) { 204 f2fs_warn(sbi, 205 "%s: inode (ino=%lx) has inconsistent i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix", 206 __func__, inode->i_ino, le64_to_cpu(ri->i_compr_blocks), 207 SECTOR_TO_BLOCK(inode->i_blocks)); 208 return false; 209 } 210 if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE || 211 ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) { 212 f2fs_warn(sbi, 213 "%s: inode (ino=%lx) has unsupported log cluster size: %u, run fsck to fix", 214 __func__, inode->i_ino, ri->i_log_cluster_size); 215 return false; 216 } 217 218 clevel = le16_to_cpu(ri->i_compress_flag) >> 219 COMPRESS_LEVEL_OFFSET; 220 switch (ri->i_compress_algorithm) { 221 case COMPRESS_LZO: 222 #ifdef CONFIG_F2FS_FS_LZO 223 if (clevel) 224 goto err_level; 225 #endif 226 break; 227 case COMPRESS_LZORLE: 228 #ifdef CONFIG_F2FS_FS_LZORLE 229 if (clevel) 230 goto err_level; 231 #endif 232 break; 233 case COMPRESS_LZ4: 234 #ifdef CONFIG_F2FS_FS_LZ4 235 #ifdef CONFIG_F2FS_FS_LZ4HC 236 if (clevel && 237 (clevel < LZ4HC_MIN_CLEVEL || clevel > LZ4HC_MAX_CLEVEL)) 238 goto err_level; 239 #else 240 if (clevel) 241 goto err_level; 242 #endif 243 #endif 244 break; 245 case COMPRESS_ZSTD: 246 #ifdef CONFIG_F2FS_FS_ZSTD 247 if (clevel < zstd_min_clevel() || clevel > zstd_max_clevel()) 248 goto err_level; 249 #endif 250 break; 251 default: 252 goto err_level; 253 } 254 255 return true; 256 err_level: 257 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported compress level: %u, run fsck to fix", 258 __func__, inode->i_ino, clevel); 259 return false; 260 } 261 262 static bool sanity_check_inode(struct inode *inode, struct page *node_page) 263 { 264 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 265 struct f2fs_inode_info *fi = F2FS_I(inode); 266 struct f2fs_inode *ri = F2FS_INODE(node_page); 267 unsigned long long iblocks; 268 269 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks); 270 if (!iblocks) { 271 f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.", 272 __func__, inode->i_ino, iblocks); 273 return false; 274 } 275 276 if (ino_of_node(node_page) != nid_of_node(node_page)) { 277 f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.", 278 __func__, inode->i_ino, 279 ino_of_node(node_page), nid_of_node(node_page)); 280 return false; 281 } 282 283 if (f2fs_has_extra_attr(inode)) { 284 if (!f2fs_sb_has_extra_attr(sbi)) { 285 f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off", 286 __func__, inode->i_ino); 287 return false; 288 } 289 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE || 290 fi->i_extra_isize < F2FS_MIN_EXTRA_ATTR_SIZE || 291 fi->i_extra_isize % sizeof(__le32)) { 292 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu", 293 __func__, inode->i_ino, fi->i_extra_isize, 294 F2FS_TOTAL_EXTRA_ATTR_SIZE); 295 return false; 296 } 297 if (f2fs_sb_has_flexible_inline_xattr(sbi) && 298 f2fs_has_inline_xattr(inode) && 299 (!fi->i_inline_xattr_size || 300 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) { 301 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %lu", 302 __func__, inode->i_ino, fi->i_inline_xattr_size, 303 MAX_INLINE_XATTR_SIZE); 304 return false; 305 } 306 if (f2fs_sb_has_compression(sbi) && 307 fi->i_flags & F2FS_COMPR_FL && 308 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 309 i_compress_flag)) { 310 if (!sanity_check_compress_inode(inode, ri)) 311 return false; 312 } 313 } else if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 314 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.", 315 __func__, inode->i_ino); 316 return false; 317 } 318 319 if (!f2fs_sb_has_extra_attr(sbi)) { 320 if (f2fs_sb_has_project_quota(sbi)) { 321 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 322 __func__, inode->i_ino, F2FS_FEATURE_PRJQUOTA); 323 return false; 324 } 325 if (f2fs_sb_has_inode_chksum(sbi)) { 326 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 327 __func__, inode->i_ino, F2FS_FEATURE_INODE_CHKSUM); 328 return false; 329 } 330 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 331 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 332 __func__, inode->i_ino, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR); 333 return false; 334 } 335 if (f2fs_sb_has_inode_crtime(sbi)) { 336 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 337 __func__, inode->i_ino, F2FS_FEATURE_INODE_CRTIME); 338 return false; 339 } 340 if (f2fs_sb_has_compression(sbi)) { 341 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.", 342 __func__, inode->i_ino, F2FS_FEATURE_COMPRESSION); 343 return false; 344 } 345 } 346 347 if (f2fs_sanity_check_inline_data(inode)) { 348 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix", 349 __func__, inode->i_ino, inode->i_mode); 350 return false; 351 } 352 353 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) { 354 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix", 355 __func__, inode->i_ino, inode->i_mode); 356 return false; 357 } 358 359 if ((fi->i_flags & F2FS_CASEFOLD_FL) && !f2fs_sb_has_casefold(sbi)) { 360 f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off", 361 __func__, inode->i_ino); 362 return false; 363 } 364 365 if (fi->i_xattr_nid && f2fs_check_nid_range(sbi, fi->i_xattr_nid)) { 366 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_xattr_nid: %u, run fsck to fix.", 367 __func__, inode->i_ino, fi->i_xattr_nid); 368 return false; 369 } 370 371 return true; 372 } 373 374 static void init_idisk_time(struct inode *inode) 375 { 376 struct f2fs_inode_info *fi = F2FS_I(inode); 377 378 fi->i_disk_time[0] = inode_get_atime(inode); 379 fi->i_disk_time[1] = inode_get_ctime(inode); 380 fi->i_disk_time[2] = inode_get_mtime(inode); 381 } 382 383 static int do_read_inode(struct inode *inode) 384 { 385 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 386 struct f2fs_inode_info *fi = F2FS_I(inode); 387 struct page *node_page; 388 struct f2fs_inode *ri; 389 projid_t i_projid; 390 391 /* Check if ino is within scope */ 392 if (f2fs_check_nid_range(sbi, inode->i_ino)) 393 return -EINVAL; 394 395 node_page = f2fs_get_node_page(sbi, inode->i_ino); 396 if (IS_ERR(node_page)) 397 return PTR_ERR(node_page); 398 399 ri = F2FS_INODE(node_page); 400 401 inode->i_mode = le16_to_cpu(ri->i_mode); 402 i_uid_write(inode, le32_to_cpu(ri->i_uid)); 403 i_gid_write(inode, le32_to_cpu(ri->i_gid)); 404 set_nlink(inode, le32_to_cpu(ri->i_links)); 405 inode->i_size = le64_to_cpu(ri->i_size); 406 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); 407 408 inode_set_atime(inode, le64_to_cpu(ri->i_atime), 409 le32_to_cpu(ri->i_atime_nsec)); 410 inode_set_ctime(inode, le64_to_cpu(ri->i_ctime), 411 le32_to_cpu(ri->i_ctime_nsec)); 412 inode_set_mtime(inode, le64_to_cpu(ri->i_mtime), 413 le32_to_cpu(ri->i_mtime_nsec)); 414 inode->i_generation = le32_to_cpu(ri->i_generation); 415 if (S_ISDIR(inode->i_mode)) 416 fi->i_current_depth = le32_to_cpu(ri->i_current_depth); 417 else if (S_ISREG(inode->i_mode)) 418 fi->i_gc_failures = le16_to_cpu(ri->i_gc_failures); 419 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); 420 fi->i_flags = le32_to_cpu(ri->i_flags); 421 if (S_ISREG(inode->i_mode)) 422 fi->i_flags &= ~F2FS_PROJINHERIT_FL; 423 bitmap_zero(fi->flags, FI_MAX); 424 fi->i_advise = ri->i_advise; 425 fi->i_pino = le32_to_cpu(ri->i_pino); 426 fi->i_dir_level = ri->i_dir_level; 427 428 get_inline_info(inode, ri); 429 430 fi->i_extra_isize = f2fs_has_extra_attr(inode) ? 431 le16_to_cpu(ri->i_extra_isize) : 0; 432 433 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 434 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); 435 } else if (f2fs_has_inline_xattr(inode) || 436 f2fs_has_inline_dentry(inode)) { 437 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 438 } else { 439 440 /* 441 * Previous inline data or directory always reserved 200 bytes 442 * in inode layout, even if inline_xattr is disabled. In order 443 * to keep inline_dentry's structure for backward compatibility, 444 * we get the space back only from inline_data. 445 */ 446 fi->i_inline_xattr_size = 0; 447 } 448 449 if (!sanity_check_inode(inode, node_page)) { 450 f2fs_put_page(node_page, 1); 451 set_sbi_flag(sbi, SBI_NEED_FSCK); 452 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); 453 return -EFSCORRUPTED; 454 } 455 456 /* check data exist */ 457 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) 458 __recover_inline_status(inode, node_page); 459 460 /* try to recover cold bit for non-dir inode */ 461 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) { 462 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 463 set_cold_node(node_page, false); 464 set_page_dirty(node_page); 465 } 466 467 /* get rdev by using inline_info */ 468 __get_inode_rdev(inode, node_page); 469 470 if (!f2fs_need_inode_block_update(sbi, inode->i_ino)) 471 fi->last_disk_size = inode->i_size; 472 473 if (fi->i_flags & F2FS_PROJINHERIT_FL) 474 set_inode_flag(inode, FI_PROJ_INHERIT); 475 476 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) && 477 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) 478 i_projid = (projid_t)le32_to_cpu(ri->i_projid); 479 else 480 i_projid = F2FS_DEF_PROJID; 481 fi->i_projid = make_kprojid(&init_user_ns, i_projid); 482 483 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) && 484 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { 485 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime); 486 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec); 487 } 488 489 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) && 490 (fi->i_flags & F2FS_COMPR_FL)) { 491 if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 492 i_compress_flag)) { 493 unsigned short compress_flag; 494 495 atomic_set(&fi->i_compr_blocks, 496 le64_to_cpu(ri->i_compr_blocks)); 497 fi->i_compress_algorithm = ri->i_compress_algorithm; 498 fi->i_log_cluster_size = ri->i_log_cluster_size; 499 compress_flag = le16_to_cpu(ri->i_compress_flag); 500 fi->i_compress_level = compress_flag >> 501 COMPRESS_LEVEL_OFFSET; 502 fi->i_compress_flag = compress_flag & 503 GENMASK(COMPRESS_LEVEL_OFFSET - 1, 0); 504 fi->i_cluster_size = BIT(fi->i_log_cluster_size); 505 set_inode_flag(inode, FI_COMPRESSED_FILE); 506 } 507 } 508 509 init_idisk_time(inode); 510 511 /* Need all the flag bits */ 512 f2fs_init_read_extent_tree(inode, node_page); 513 f2fs_init_age_extent_tree(inode); 514 515 if (!sanity_check_extent_cache(inode)) { 516 f2fs_put_page(node_page, 1); 517 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); 518 return -EFSCORRUPTED; 519 } 520 521 f2fs_put_page(node_page, 1); 522 523 stat_inc_inline_xattr(inode); 524 stat_inc_inline_inode(inode); 525 stat_inc_inline_dir(inode); 526 stat_inc_compr_inode(inode); 527 stat_add_compr_blocks(inode, atomic_read(&fi->i_compr_blocks)); 528 529 return 0; 530 } 531 532 static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino) 533 { 534 return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) || 535 ino == F2FS_COMPRESS_INO(sbi); 536 } 537 538 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) 539 { 540 struct f2fs_sb_info *sbi = F2FS_SB(sb); 541 struct inode *inode; 542 int ret = 0; 543 544 inode = iget_locked(sb, ino); 545 if (!inode) 546 return ERR_PTR(-ENOMEM); 547 548 if (!(inode->i_state & I_NEW)) { 549 if (is_meta_ino(sbi, ino)) { 550 f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino); 551 set_sbi_flag(sbi, SBI_NEED_FSCK); 552 ret = -EFSCORRUPTED; 553 trace_f2fs_iget_exit(inode, ret); 554 iput(inode); 555 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); 556 return ERR_PTR(ret); 557 } 558 559 trace_f2fs_iget(inode); 560 return inode; 561 } 562 563 if (is_meta_ino(sbi, ino)) 564 goto make_now; 565 566 ret = do_read_inode(inode); 567 if (ret) 568 goto bad_inode; 569 make_now: 570 if (ino == F2FS_NODE_INO(sbi)) { 571 inode->i_mapping->a_ops = &f2fs_node_aops; 572 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 573 } else if (ino == F2FS_META_INO(sbi)) { 574 inode->i_mapping->a_ops = &f2fs_meta_aops; 575 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 576 } else if (ino == F2FS_COMPRESS_INO(sbi)) { 577 #ifdef CONFIG_F2FS_FS_COMPRESSION 578 inode->i_mapping->a_ops = &f2fs_compress_aops; 579 /* 580 * generic_error_remove_folio only truncates pages of regular 581 * inode 582 */ 583 inode->i_mode |= S_IFREG; 584 #endif 585 mapping_set_gfp_mask(inode->i_mapping, 586 GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE); 587 } else if (S_ISREG(inode->i_mode)) { 588 inode->i_op = &f2fs_file_inode_operations; 589 inode->i_fop = &f2fs_file_operations; 590 inode->i_mapping->a_ops = &f2fs_dblock_aops; 591 } else if (S_ISDIR(inode->i_mode)) { 592 inode->i_op = &f2fs_dir_inode_operations; 593 inode->i_fop = &f2fs_dir_operations; 594 inode->i_mapping->a_ops = &f2fs_dblock_aops; 595 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 596 } else if (S_ISLNK(inode->i_mode)) { 597 if (file_is_encrypt(inode)) 598 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 599 else 600 inode->i_op = &f2fs_symlink_inode_operations; 601 inode_nohighmem(inode); 602 inode->i_mapping->a_ops = &f2fs_dblock_aops; 603 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 604 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 605 inode->i_op = &f2fs_special_inode_operations; 606 init_special_inode(inode, inode->i_mode, inode->i_rdev); 607 } else { 608 ret = -EIO; 609 goto bad_inode; 610 } 611 f2fs_set_inode_flags(inode); 612 613 if (file_should_truncate(inode) && 614 !is_sbi_flag_set(sbi, SBI_POR_DOING)) { 615 ret = f2fs_truncate(inode); 616 if (ret) 617 goto bad_inode; 618 file_dont_truncate(inode); 619 } 620 621 unlock_new_inode(inode); 622 trace_f2fs_iget(inode); 623 return inode; 624 625 bad_inode: 626 f2fs_inode_synced(inode); 627 iget_failed(inode); 628 trace_f2fs_iget_exit(inode, ret); 629 return ERR_PTR(ret); 630 } 631 632 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) 633 { 634 struct inode *inode; 635 retry: 636 inode = f2fs_iget(sb, ino); 637 if (IS_ERR(inode)) { 638 if (PTR_ERR(inode) == -ENOMEM) { 639 memalloc_retry_wait(GFP_NOFS); 640 goto retry; 641 } 642 } 643 return inode; 644 } 645 646 void f2fs_update_inode(struct inode *inode, struct page *node_page) 647 { 648 struct f2fs_inode *ri; 649 struct extent_tree *et = F2FS_I(inode)->extent_tree[EX_READ]; 650 651 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 652 set_page_dirty(node_page); 653 654 f2fs_inode_synced(inode); 655 656 ri = F2FS_INODE(node_page); 657 658 ri->i_mode = cpu_to_le16(inode->i_mode); 659 ri->i_advise = F2FS_I(inode)->i_advise; 660 ri->i_uid = cpu_to_le32(i_uid_read(inode)); 661 ri->i_gid = cpu_to_le32(i_gid_read(inode)); 662 ri->i_links = cpu_to_le32(inode->i_nlink); 663 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); 664 665 if (!f2fs_is_atomic_file(inode) || 666 is_inode_flag_set(inode, FI_ATOMIC_COMMITTED)) 667 ri->i_size = cpu_to_le64(i_size_read(inode)); 668 669 if (et) { 670 read_lock(&et->lock); 671 set_raw_read_extent(&et->largest, &ri->i_ext); 672 read_unlock(&et->lock); 673 } else { 674 memset(&ri->i_ext, 0, sizeof(ri->i_ext)); 675 } 676 set_raw_inline(inode, ri); 677 678 ri->i_atime = cpu_to_le64(inode_get_atime_sec(inode)); 679 ri->i_ctime = cpu_to_le64(inode_get_ctime_sec(inode)); 680 ri->i_mtime = cpu_to_le64(inode_get_mtime_sec(inode)); 681 ri->i_atime_nsec = cpu_to_le32(inode_get_atime_nsec(inode)); 682 ri->i_ctime_nsec = cpu_to_le32(inode_get_ctime_nsec(inode)); 683 ri->i_mtime_nsec = cpu_to_le32(inode_get_mtime_nsec(inode)); 684 if (S_ISDIR(inode->i_mode)) 685 ri->i_current_depth = 686 cpu_to_le32(F2FS_I(inode)->i_current_depth); 687 else if (S_ISREG(inode->i_mode)) 688 ri->i_gc_failures = cpu_to_le16(F2FS_I(inode)->i_gc_failures); 689 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); 690 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); 691 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); 692 ri->i_generation = cpu_to_le32(inode->i_generation); 693 ri->i_dir_level = F2FS_I(inode)->i_dir_level; 694 695 if (f2fs_has_extra_attr(inode)) { 696 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); 697 698 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode))) 699 ri->i_inline_xattr_size = 700 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); 701 702 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) && 703 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 704 i_projid)) { 705 projid_t i_projid; 706 707 i_projid = from_kprojid(&init_user_ns, 708 F2FS_I(inode)->i_projid); 709 ri->i_projid = cpu_to_le32(i_projid); 710 } 711 712 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && 713 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 714 i_crtime)) { 715 ri->i_crtime = 716 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec); 717 ri->i_crtime_nsec = 718 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec); 719 } 720 721 if (f2fs_sb_has_compression(F2FS_I_SB(inode)) && 722 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 723 i_compress_flag)) { 724 unsigned short compress_flag; 725 726 ri->i_compr_blocks = 727 cpu_to_le64(atomic_read( 728 &F2FS_I(inode)->i_compr_blocks)); 729 ri->i_compress_algorithm = 730 F2FS_I(inode)->i_compress_algorithm; 731 compress_flag = F2FS_I(inode)->i_compress_flag | 732 F2FS_I(inode)->i_compress_level << 733 COMPRESS_LEVEL_OFFSET; 734 ri->i_compress_flag = cpu_to_le16(compress_flag); 735 ri->i_log_cluster_size = 736 F2FS_I(inode)->i_log_cluster_size; 737 } 738 } 739 740 __set_inode_rdev(inode, node_page); 741 742 /* deleted inode */ 743 if (inode->i_nlink == 0) 744 clear_page_private_inline(node_page); 745 746 init_idisk_time(inode); 747 #ifdef CONFIG_F2FS_CHECK_FS 748 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page); 749 #endif 750 } 751 752 void f2fs_update_inode_page(struct inode *inode) 753 { 754 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 755 struct page *node_page; 756 int count = 0; 757 retry: 758 node_page = f2fs_get_node_page(sbi, inode->i_ino); 759 if (IS_ERR(node_page)) { 760 int err = PTR_ERR(node_page); 761 762 /* The node block was truncated. */ 763 if (err == -ENOENT) 764 return; 765 766 if (err == -ENOMEM || ++count <= DEFAULT_RETRY_IO_COUNT) 767 goto retry; 768 f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_UPDATE_INODE); 769 return; 770 } 771 f2fs_update_inode(inode, node_page); 772 f2fs_put_page(node_page, 1); 773 } 774 775 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) 776 { 777 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 778 779 if (inode->i_ino == F2FS_NODE_INO(sbi) || 780 inode->i_ino == F2FS_META_INO(sbi)) 781 return 0; 782 783 /* 784 * atime could be updated without dirtying f2fs inode in lazytime mode 785 */ 786 if (f2fs_is_time_consistent(inode) && 787 !is_inode_flag_set(inode, FI_DIRTY_INODE)) 788 return 0; 789 790 if (!f2fs_is_checkpoint_ready(sbi)) 791 return -ENOSPC; 792 793 /* 794 * We need to balance fs here to prevent from producing dirty node pages 795 * during the urgent cleaning time when running out of free sections. 796 */ 797 f2fs_update_inode_page(inode); 798 if (wbc && wbc->nr_to_write) 799 f2fs_balance_fs(sbi, true); 800 return 0; 801 } 802 803 /* 804 * Called at the last iput() if i_nlink is zero 805 */ 806 void f2fs_evict_inode(struct inode *inode) 807 { 808 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 809 struct f2fs_inode_info *fi = F2FS_I(inode); 810 nid_t xnid = fi->i_xattr_nid; 811 int err = 0; 812 bool freeze_protected = false; 813 814 f2fs_abort_atomic_write(inode, true); 815 816 if (fi->cow_inode) { 817 clear_inode_flag(fi->cow_inode, FI_COW_FILE); 818 iput(fi->cow_inode); 819 fi->cow_inode = NULL; 820 } 821 822 trace_f2fs_evict_inode(inode); 823 truncate_inode_pages_final(&inode->i_data); 824 825 if ((inode->i_nlink || is_bad_inode(inode)) && 826 test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode)) 827 f2fs_invalidate_compress_pages(sbi, inode->i_ino); 828 829 if (inode->i_ino == F2FS_NODE_INO(sbi) || 830 inode->i_ino == F2FS_META_INO(sbi) || 831 inode->i_ino == F2FS_COMPRESS_INO(sbi)) 832 goto out_clear; 833 834 f2fs_bug_on(sbi, get_dirty_pages(inode)); 835 f2fs_remove_dirty_inode(inode); 836 837 f2fs_destroy_extent_tree(inode); 838 839 if (inode->i_nlink || is_bad_inode(inode)) 840 goto no_delete; 841 842 err = f2fs_dquot_initialize(inode); 843 if (err) { 844 err = 0; 845 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 846 } 847 848 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO); 849 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); 850 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); 851 852 if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING)) { 853 sb_start_intwrite(inode->i_sb); 854 freeze_protected = true; 855 } 856 set_inode_flag(inode, FI_NO_ALLOC); 857 i_size_write(inode, 0); 858 retry: 859 if (F2FS_HAS_BLOCKS(inode)) 860 err = f2fs_truncate(inode); 861 862 if (time_to_inject(sbi, FAULT_EVICT_INODE)) 863 err = -EIO; 864 865 if (!err) { 866 f2fs_lock_op(sbi); 867 err = f2fs_remove_inode_page(inode); 868 f2fs_unlock_op(sbi); 869 if (err == -ENOENT) { 870 err = 0; 871 872 /* 873 * in fuzzed image, another node may has the same 874 * block address as inode's, if it was truncated 875 * previously, truncation of inode node will fail. 876 */ 877 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { 878 f2fs_warn(F2FS_I_SB(inode), 879 "f2fs_evict_inode: inconsistent node id, ino:%lu", 880 inode->i_ino); 881 f2fs_inode_synced(inode); 882 set_sbi_flag(sbi, SBI_NEED_FSCK); 883 } 884 } 885 } 886 887 /* give more chances, if ENOMEM case */ 888 if (err == -ENOMEM) { 889 err = 0; 890 goto retry; 891 } 892 893 if (err) { 894 f2fs_update_inode_page(inode); 895 if (dquot_initialize_needed(inode)) 896 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 897 } 898 if (freeze_protected) 899 sb_end_intwrite(inode->i_sb); 900 no_delete: 901 dquot_drop(inode); 902 903 stat_dec_inline_xattr(inode); 904 stat_dec_inline_dir(inode); 905 stat_dec_inline_inode(inode); 906 stat_dec_compr_inode(inode); 907 stat_sub_compr_blocks(inode, 908 atomic_read(&fi->i_compr_blocks)); 909 910 if (likely(!f2fs_cp_error(sbi) && 911 !is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 912 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); 913 else 914 f2fs_inode_synced(inode); 915 916 /* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */ 917 if (inode->i_ino) 918 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, 919 inode->i_ino); 920 if (xnid) 921 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); 922 if (inode->i_nlink) { 923 if (is_inode_flag_set(inode, FI_APPEND_WRITE)) 924 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO); 925 if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) 926 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO); 927 } 928 if (is_inode_flag_set(inode, FI_FREE_NID)) { 929 f2fs_alloc_nid_failed(sbi, inode->i_ino); 930 clear_inode_flag(inode, FI_FREE_NID); 931 } else { 932 /* 933 * If xattr nid is corrupted, we can reach out error condition, 934 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). 935 * In that case, f2fs_check_nid_range() is enough to give a clue. 936 */ 937 } 938 out_clear: 939 fscrypt_put_encryption_info(inode); 940 fsverity_cleanup_inode(inode); 941 clear_inode(inode); 942 } 943 944 /* caller should call f2fs_lock_op() */ 945 void f2fs_handle_failed_inode(struct inode *inode) 946 { 947 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 948 struct node_info ni; 949 int err; 950 951 /* 952 * clear nlink of inode in order to release resource of inode 953 * immediately. 954 */ 955 clear_nlink(inode); 956 957 /* 958 * we must call this to avoid inode being remained as dirty, resulting 959 * in a panic when flushing dirty inodes in gdirty_list. 960 */ 961 f2fs_update_inode_page(inode); 962 f2fs_inode_synced(inode); 963 964 /* don't make bad inode, since it becomes a regular file. */ 965 unlock_new_inode(inode); 966 967 /* 968 * Note: we should add inode to orphan list before f2fs_unlock_op() 969 * so we can prevent losing this orphan when encoutering checkpoint 970 * and following suddenly power-off. 971 */ 972 err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false); 973 if (err) { 974 set_sbi_flag(sbi, SBI_NEED_FSCK); 975 set_inode_flag(inode, FI_FREE_NID); 976 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix."); 977 goto out; 978 } 979 980 if (ni.blk_addr != NULL_ADDR) { 981 err = f2fs_acquire_orphan_inode(sbi); 982 if (err) { 983 set_sbi_flag(sbi, SBI_NEED_FSCK); 984 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix."); 985 } else { 986 f2fs_add_orphan_inode(inode); 987 } 988 f2fs_alloc_nid_done(sbi, inode->i_ino); 989 } else { 990 set_inode_flag(inode, FI_FREE_NID); 991 } 992 993 out: 994 f2fs_unlock_op(sbi); 995 996 /* iput will drop the inode object */ 997 iput(inode); 998 } 999