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