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 14 #include "f2fs.h" 15 #include "node.h" 16 #include "segment.h" 17 #include "xattr.h" 18 19 #include <trace/events/f2fs.h> 20 21 #ifdef CONFIG_F2FS_FS_COMPRESSION 22 extern const struct address_space_operations f2fs_compress_aops; 23 #endif 24 25 void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync) 26 { 27 if (is_inode_flag_set(inode, FI_NEW_INODE)) 28 return; 29 30 if (f2fs_inode_dirtied(inode, sync)) 31 return; 32 33 mark_inode_dirty_sync(inode); 34 } 35 36 void f2fs_set_inode_flags(struct inode *inode) 37 { 38 unsigned int flags = F2FS_I(inode)->i_flags; 39 unsigned int new_fl = 0; 40 41 if (flags & F2FS_SYNC_FL) 42 new_fl |= S_SYNC; 43 if (flags & F2FS_APPEND_FL) 44 new_fl |= S_APPEND; 45 if (flags & F2FS_IMMUTABLE_FL) 46 new_fl |= S_IMMUTABLE; 47 if (flags & F2FS_NOATIME_FL) 48 new_fl |= S_NOATIME; 49 if (flags & F2FS_DIRSYNC_FL) 50 new_fl |= S_DIRSYNC; 51 if (file_is_encrypt(inode)) 52 new_fl |= S_ENCRYPTED; 53 if (file_is_verity(inode)) 54 new_fl |= S_VERITY; 55 if (flags & F2FS_CASEFOLD_FL) 56 new_fl |= S_CASEFOLD; 57 inode_set_flags(inode, new_fl, 58 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC| 59 S_ENCRYPTED|S_VERITY|S_CASEFOLD); 60 } 61 62 static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri) 63 { 64 int extra_size = get_extra_isize(inode); 65 66 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 67 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 68 if (ri->i_addr[extra_size]) 69 inode->i_rdev = old_decode_dev( 70 le32_to_cpu(ri->i_addr[extra_size])); 71 else 72 inode->i_rdev = new_decode_dev( 73 le32_to_cpu(ri->i_addr[extra_size + 1])); 74 } 75 } 76 77 static int __written_first_block(struct f2fs_sb_info *sbi, 78 struct f2fs_inode *ri) 79 { 80 block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); 81 82 if (!__is_valid_data_blkaddr(addr)) 83 return 1; 84 if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE)) { 85 f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR); 86 return -EFSCORRUPTED; 87 } 88 return 0; 89 } 90 91 static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) 92 { 93 int extra_size = get_extra_isize(inode); 94 95 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { 96 if (old_valid_dev(inode->i_rdev)) { 97 ri->i_addr[extra_size] = 98 cpu_to_le32(old_encode_dev(inode->i_rdev)); 99 ri->i_addr[extra_size + 1] = 0; 100 } else { 101 ri->i_addr[extra_size] = 0; 102 ri->i_addr[extra_size + 1] = 103 cpu_to_le32(new_encode_dev(inode->i_rdev)); 104 ri->i_addr[extra_size + 2] = 0; 105 } 106 } 107 } 108 109 static void __recover_inline_status(struct inode *inode, struct page *ipage) 110 { 111 void *inline_data = inline_data_addr(inode, ipage); 112 __le32 *start = inline_data; 113 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); 114 115 while (start < end) { 116 if (*start++) { 117 f2fs_wait_on_page_writeback(ipage, NODE, true, true); 118 119 set_inode_flag(inode, FI_DATA_EXIST); 120 set_raw_inline(inode, F2FS_INODE(ipage)); 121 set_page_dirty(ipage); 122 return; 123 } 124 } 125 return; 126 } 127 128 static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 129 { 130 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 131 132 if (!f2fs_sb_has_inode_chksum(sbi)) 133 return false; 134 135 if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR)) 136 return false; 137 138 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize), 139 i_inode_checksum)) 140 return false; 141 142 return true; 143 } 144 145 static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 146 { 147 struct f2fs_node *node = F2FS_NODE(page); 148 struct f2fs_inode *ri = &node->i; 149 __le32 ino = node->footer.ino; 150 __le32 gen = ri->i_generation; 151 __u32 chksum, chksum_seed; 152 __u32 dummy_cs = 0; 153 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); 154 unsigned int cs_size = sizeof(dummy_cs); 155 156 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, 157 sizeof(ino)); 158 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); 159 160 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); 161 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); 162 offset += cs_size; 163 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, 164 F2FS_BLKSIZE - offset); 165 return chksum; 166 } 167 168 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) 169 { 170 struct f2fs_inode *ri; 171 __u32 provided, calculated; 172 173 if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))) 174 return true; 175 176 #ifdef CONFIG_F2FS_CHECK_FS 177 if (!f2fs_enable_inode_chksum(sbi, page)) 178 #else 179 if (!f2fs_enable_inode_chksum(sbi, page) || 180 PageDirty(page) || PageWriteback(page)) 181 #endif 182 return true; 183 184 ri = &F2FS_NODE(page)->i; 185 provided = le32_to_cpu(ri->i_inode_checksum); 186 calculated = f2fs_inode_chksum(sbi, page); 187 188 if (provided != calculated) 189 f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x", 190 page->index, ino_of_node(page), provided, calculated); 191 192 return provided == calculated; 193 } 194 195 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) 196 { 197 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 198 199 if (!f2fs_enable_inode_chksum(sbi, page)) 200 return; 201 202 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); 203 } 204 205 static bool sanity_check_inode(struct inode *inode, struct page *node_page) 206 { 207 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 208 struct f2fs_inode_info *fi = F2FS_I(inode); 209 struct f2fs_inode *ri = F2FS_INODE(node_page); 210 unsigned long long iblocks; 211 212 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks); 213 if (!iblocks) { 214 set_sbi_flag(sbi, SBI_NEED_FSCK); 215 f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.", 216 __func__, inode->i_ino, iblocks); 217 return false; 218 } 219 220 if (ino_of_node(node_page) != nid_of_node(node_page)) { 221 set_sbi_flag(sbi, SBI_NEED_FSCK); 222 f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.", 223 __func__, inode->i_ino, 224 ino_of_node(node_page), nid_of_node(node_page)); 225 return false; 226 } 227 228 if (f2fs_sb_has_flexible_inline_xattr(sbi) 229 && !f2fs_has_extra_attr(inode)) { 230 set_sbi_flag(sbi, SBI_NEED_FSCK); 231 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.", 232 __func__, inode->i_ino); 233 return false; 234 } 235 236 if (f2fs_has_extra_attr(inode) && 237 !f2fs_sb_has_extra_attr(sbi)) { 238 set_sbi_flag(sbi, SBI_NEED_FSCK); 239 f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off", 240 __func__, inode->i_ino); 241 return false; 242 } 243 244 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE || 245 fi->i_extra_isize % sizeof(__le32)) { 246 set_sbi_flag(sbi, SBI_NEED_FSCK); 247 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu", 248 __func__, inode->i_ino, fi->i_extra_isize, 249 F2FS_TOTAL_EXTRA_ATTR_SIZE); 250 return false; 251 } 252 253 if (f2fs_has_extra_attr(inode) && 254 f2fs_sb_has_flexible_inline_xattr(sbi) && 255 f2fs_has_inline_xattr(inode) && 256 (!fi->i_inline_xattr_size || 257 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) { 258 set_sbi_flag(sbi, SBI_NEED_FSCK); 259 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu", 260 __func__, inode->i_ino, fi->i_inline_xattr_size, 261 MAX_INLINE_XATTR_SIZE); 262 return false; 263 } 264 265 if (fi->extent_tree[EX_READ]) { 266 struct extent_info *ei = &fi->extent_tree[EX_READ]->largest; 267 268 if (ei->len && 269 (!f2fs_is_valid_blkaddr(sbi, ei->blk, 270 DATA_GENERIC_ENHANCE) || 271 !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1, 272 DATA_GENERIC_ENHANCE))) { 273 set_sbi_flag(sbi, SBI_NEED_FSCK); 274 f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix", 275 __func__, inode->i_ino, 276 ei->blk, ei->fofs, ei->len); 277 return false; 278 } 279 } 280 281 if (f2fs_sanity_check_inline_data(inode)) { 282 set_sbi_flag(sbi, SBI_NEED_FSCK); 283 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix", 284 __func__, inode->i_ino, inode->i_mode); 285 return false; 286 } 287 288 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) { 289 set_sbi_flag(sbi, SBI_NEED_FSCK); 290 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix", 291 __func__, inode->i_ino, inode->i_mode); 292 return false; 293 } 294 295 if ((fi->i_flags & F2FS_CASEFOLD_FL) && !f2fs_sb_has_casefold(sbi)) { 296 set_sbi_flag(sbi, SBI_NEED_FSCK); 297 f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off", 298 __func__, inode->i_ino); 299 return false; 300 } 301 302 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) && 303 fi->i_flags & F2FS_COMPR_FL && 304 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 305 i_log_cluster_size)) { 306 if (ri->i_compress_algorithm >= COMPRESS_MAX) { 307 set_sbi_flag(sbi, SBI_NEED_FSCK); 308 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported " 309 "compress algorithm: %u, run fsck to fix", 310 __func__, inode->i_ino, 311 ri->i_compress_algorithm); 312 return false; 313 } 314 if (le64_to_cpu(ri->i_compr_blocks) > 315 SECTOR_TO_BLOCK(inode->i_blocks)) { 316 set_sbi_flag(sbi, SBI_NEED_FSCK); 317 f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent " 318 "i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix", 319 __func__, inode->i_ino, 320 le64_to_cpu(ri->i_compr_blocks), 321 SECTOR_TO_BLOCK(inode->i_blocks)); 322 return false; 323 } 324 if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE || 325 ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) { 326 set_sbi_flag(sbi, SBI_NEED_FSCK); 327 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported " 328 "log cluster size: %u, run fsck to fix", 329 __func__, inode->i_ino, 330 ri->i_log_cluster_size); 331 return false; 332 } 333 } 334 335 return true; 336 } 337 338 static void init_idisk_time(struct inode *inode) 339 { 340 struct f2fs_inode_info *fi = F2FS_I(inode); 341 342 fi->i_disk_time[0] = inode->i_atime; 343 fi->i_disk_time[1] = inode->i_ctime; 344 fi->i_disk_time[2] = inode->i_mtime; 345 fi->i_disk_time[3] = fi->i_crtime; 346 } 347 348 static int do_read_inode(struct inode *inode) 349 { 350 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 351 struct f2fs_inode_info *fi = F2FS_I(inode); 352 struct page *node_page; 353 struct f2fs_inode *ri; 354 projid_t i_projid; 355 int err; 356 357 /* Check if ino is within scope */ 358 if (f2fs_check_nid_range(sbi, inode->i_ino)) 359 return -EINVAL; 360 361 node_page = f2fs_get_node_page(sbi, inode->i_ino); 362 if (IS_ERR(node_page)) 363 return PTR_ERR(node_page); 364 365 ri = F2FS_INODE(node_page); 366 367 inode->i_mode = le16_to_cpu(ri->i_mode); 368 i_uid_write(inode, le32_to_cpu(ri->i_uid)); 369 i_gid_write(inode, le32_to_cpu(ri->i_gid)); 370 set_nlink(inode, le32_to_cpu(ri->i_links)); 371 inode->i_size = le64_to_cpu(ri->i_size); 372 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); 373 374 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); 375 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); 376 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); 377 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); 378 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); 379 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); 380 inode->i_generation = le32_to_cpu(ri->i_generation); 381 if (S_ISDIR(inode->i_mode)) 382 fi->i_current_depth = le32_to_cpu(ri->i_current_depth); 383 else if (S_ISREG(inode->i_mode)) 384 fi->i_gc_failures[GC_FAILURE_PIN] = 385 le16_to_cpu(ri->i_gc_failures); 386 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); 387 fi->i_flags = le32_to_cpu(ri->i_flags); 388 if (S_ISREG(inode->i_mode)) 389 fi->i_flags &= ~F2FS_PROJINHERIT_FL; 390 bitmap_zero(fi->flags, FI_MAX); 391 fi->i_advise = ri->i_advise; 392 fi->i_pino = le32_to_cpu(ri->i_pino); 393 fi->i_dir_level = ri->i_dir_level; 394 395 get_inline_info(inode, ri); 396 397 fi->i_extra_isize = f2fs_has_extra_attr(inode) ? 398 le16_to_cpu(ri->i_extra_isize) : 0; 399 400 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 401 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); 402 } else if (f2fs_has_inline_xattr(inode) || 403 f2fs_has_inline_dentry(inode)) { 404 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 405 } else { 406 407 /* 408 * Previous inline data or directory always reserved 200 bytes 409 * in inode layout, even if inline_xattr is disabled. In order 410 * to keep inline_dentry's structure for backward compatibility, 411 * we get the space back only from inline_data. 412 */ 413 fi->i_inline_xattr_size = 0; 414 } 415 416 if (!sanity_check_inode(inode, node_page)) { 417 f2fs_put_page(node_page, 1); 418 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); 419 return -EFSCORRUPTED; 420 } 421 422 /* check data exist */ 423 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) 424 __recover_inline_status(inode, node_page); 425 426 /* try to recover cold bit for non-dir inode */ 427 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) { 428 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 429 set_cold_node(node_page, false); 430 set_page_dirty(node_page); 431 } 432 433 /* get rdev by using inline_info */ 434 __get_inode_rdev(inode, ri); 435 436 if (S_ISREG(inode->i_mode)) { 437 err = __written_first_block(sbi, ri); 438 if (err < 0) { 439 f2fs_put_page(node_page, 1); 440 return err; 441 } 442 if (!err) 443 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); 444 } 445 446 if (!f2fs_need_inode_block_update(sbi, inode->i_ino)) 447 fi->last_disk_size = inode->i_size; 448 449 if (fi->i_flags & F2FS_PROJINHERIT_FL) 450 set_inode_flag(inode, FI_PROJ_INHERIT); 451 452 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) && 453 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) 454 i_projid = (projid_t)le32_to_cpu(ri->i_projid); 455 else 456 i_projid = F2FS_DEF_PROJID; 457 fi->i_projid = make_kprojid(&init_user_ns, i_projid); 458 459 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) && 460 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { 461 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime); 462 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec); 463 } 464 465 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) && 466 (fi->i_flags & F2FS_COMPR_FL)) { 467 if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 468 i_log_cluster_size)) { 469 atomic_set(&fi->i_compr_blocks, 470 le64_to_cpu(ri->i_compr_blocks)); 471 fi->i_compress_algorithm = ri->i_compress_algorithm; 472 fi->i_log_cluster_size = ri->i_log_cluster_size; 473 fi->i_compress_flag = le16_to_cpu(ri->i_compress_flag); 474 fi->i_cluster_size = 1 << fi->i_log_cluster_size; 475 set_inode_flag(inode, FI_COMPRESSED_FILE); 476 } 477 } 478 479 init_idisk_time(inode); 480 481 /* Need all the flag bits */ 482 f2fs_init_read_extent_tree(inode, node_page); 483 f2fs_init_age_extent_tree(inode); 484 485 f2fs_put_page(node_page, 1); 486 487 stat_inc_inline_xattr(inode); 488 stat_inc_inline_inode(inode); 489 stat_inc_inline_dir(inode); 490 stat_inc_compr_inode(inode); 491 stat_add_compr_blocks(inode, atomic_read(&fi->i_compr_blocks)); 492 493 return 0; 494 } 495 496 static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino) 497 { 498 return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) || 499 ino == F2FS_COMPRESS_INO(sbi); 500 } 501 502 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) 503 { 504 struct f2fs_sb_info *sbi = F2FS_SB(sb); 505 struct inode *inode; 506 int ret = 0; 507 508 inode = iget_locked(sb, ino); 509 if (!inode) 510 return ERR_PTR(-ENOMEM); 511 512 if (!(inode->i_state & I_NEW)) { 513 if (is_meta_ino(sbi, ino)) { 514 f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino); 515 set_sbi_flag(sbi, SBI_NEED_FSCK); 516 ret = -EFSCORRUPTED; 517 trace_f2fs_iget_exit(inode, ret); 518 iput(inode); 519 f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); 520 return ERR_PTR(ret); 521 } 522 523 trace_f2fs_iget(inode); 524 return inode; 525 } 526 527 if (is_meta_ino(sbi, ino)) 528 goto make_now; 529 530 ret = do_read_inode(inode); 531 if (ret) 532 goto bad_inode; 533 make_now: 534 if (ino == F2FS_NODE_INO(sbi)) { 535 inode->i_mapping->a_ops = &f2fs_node_aops; 536 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 537 } else if (ino == F2FS_META_INO(sbi)) { 538 inode->i_mapping->a_ops = &f2fs_meta_aops; 539 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 540 } else if (ino == F2FS_COMPRESS_INO(sbi)) { 541 #ifdef CONFIG_F2FS_FS_COMPRESSION 542 inode->i_mapping->a_ops = &f2fs_compress_aops; 543 /* 544 * generic_error_remove_page only truncates pages of regular 545 * inode 546 */ 547 inode->i_mode |= S_IFREG; 548 #endif 549 mapping_set_gfp_mask(inode->i_mapping, 550 GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE); 551 } else if (S_ISREG(inode->i_mode)) { 552 inode->i_op = &f2fs_file_inode_operations; 553 inode->i_fop = &f2fs_file_operations; 554 inode->i_mapping->a_ops = &f2fs_dblock_aops; 555 } else if (S_ISDIR(inode->i_mode)) { 556 inode->i_op = &f2fs_dir_inode_operations; 557 inode->i_fop = &f2fs_dir_operations; 558 inode->i_mapping->a_ops = &f2fs_dblock_aops; 559 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 560 } else if (S_ISLNK(inode->i_mode)) { 561 if (file_is_encrypt(inode)) 562 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 563 else 564 inode->i_op = &f2fs_symlink_inode_operations; 565 inode_nohighmem(inode); 566 inode->i_mapping->a_ops = &f2fs_dblock_aops; 567 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 568 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 569 inode->i_op = &f2fs_special_inode_operations; 570 init_special_inode(inode, inode->i_mode, inode->i_rdev); 571 } else { 572 ret = -EIO; 573 goto bad_inode; 574 } 575 f2fs_set_inode_flags(inode); 576 577 if (file_should_truncate(inode) && 578 !is_sbi_flag_set(sbi, SBI_POR_DOING)) { 579 ret = f2fs_truncate(inode); 580 if (ret) 581 goto bad_inode; 582 file_dont_truncate(inode); 583 } 584 585 unlock_new_inode(inode); 586 trace_f2fs_iget(inode); 587 return inode; 588 589 bad_inode: 590 f2fs_inode_synced(inode); 591 iget_failed(inode); 592 trace_f2fs_iget_exit(inode, ret); 593 return ERR_PTR(ret); 594 } 595 596 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) 597 { 598 struct inode *inode; 599 retry: 600 inode = f2fs_iget(sb, ino); 601 if (IS_ERR(inode)) { 602 if (PTR_ERR(inode) == -ENOMEM) { 603 memalloc_retry_wait(GFP_NOFS); 604 goto retry; 605 } 606 } 607 return inode; 608 } 609 610 void f2fs_update_inode(struct inode *inode, struct page *node_page) 611 { 612 struct f2fs_inode *ri; 613 struct extent_tree *et = F2FS_I(inode)->extent_tree[EX_READ]; 614 615 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 616 set_page_dirty(node_page); 617 618 f2fs_inode_synced(inode); 619 620 ri = F2FS_INODE(node_page); 621 622 ri->i_mode = cpu_to_le16(inode->i_mode); 623 ri->i_advise = F2FS_I(inode)->i_advise; 624 ri->i_uid = cpu_to_le32(i_uid_read(inode)); 625 ri->i_gid = cpu_to_le32(i_gid_read(inode)); 626 ri->i_links = cpu_to_le32(inode->i_nlink); 627 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); 628 629 if (!f2fs_is_atomic_file(inode) || 630 is_inode_flag_set(inode, FI_ATOMIC_COMMITTED)) 631 ri->i_size = cpu_to_le64(i_size_read(inode)); 632 633 if (et) { 634 read_lock(&et->lock); 635 set_raw_read_extent(&et->largest, &ri->i_ext); 636 read_unlock(&et->lock); 637 } else { 638 memset(&ri->i_ext, 0, sizeof(ri->i_ext)); 639 } 640 set_raw_inline(inode, ri); 641 642 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); 643 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); 644 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); 645 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); 646 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); 647 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); 648 if (S_ISDIR(inode->i_mode)) 649 ri->i_current_depth = 650 cpu_to_le32(F2FS_I(inode)->i_current_depth); 651 else if (S_ISREG(inode->i_mode)) 652 ri->i_gc_failures = 653 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]); 654 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); 655 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); 656 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); 657 ri->i_generation = cpu_to_le32(inode->i_generation); 658 ri->i_dir_level = F2FS_I(inode)->i_dir_level; 659 660 if (f2fs_has_extra_attr(inode)) { 661 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); 662 663 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode))) 664 ri->i_inline_xattr_size = 665 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); 666 667 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) && 668 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 669 i_projid)) { 670 projid_t i_projid; 671 672 i_projid = from_kprojid(&init_user_ns, 673 F2FS_I(inode)->i_projid); 674 ri->i_projid = cpu_to_le32(i_projid); 675 } 676 677 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && 678 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 679 i_crtime)) { 680 ri->i_crtime = 681 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec); 682 ri->i_crtime_nsec = 683 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec); 684 } 685 686 if (f2fs_sb_has_compression(F2FS_I_SB(inode)) && 687 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 688 i_log_cluster_size)) { 689 ri->i_compr_blocks = 690 cpu_to_le64(atomic_read( 691 &F2FS_I(inode)->i_compr_blocks)); 692 ri->i_compress_algorithm = 693 F2FS_I(inode)->i_compress_algorithm; 694 ri->i_compress_flag = 695 cpu_to_le16(F2FS_I(inode)->i_compress_flag); 696 ri->i_log_cluster_size = 697 F2FS_I(inode)->i_log_cluster_size; 698 } 699 } 700 701 __set_inode_rdev(inode, ri); 702 703 /* deleted inode */ 704 if (inode->i_nlink == 0) 705 clear_page_private_inline(node_page); 706 707 init_idisk_time(inode); 708 #ifdef CONFIG_F2FS_CHECK_FS 709 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page); 710 #endif 711 } 712 713 void f2fs_update_inode_page(struct inode *inode) 714 { 715 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 716 struct page *node_page; 717 retry: 718 node_page = f2fs_get_node_page(sbi, inode->i_ino); 719 if (IS_ERR(node_page)) { 720 int err = PTR_ERR(node_page); 721 722 if (err == -ENOMEM) { 723 cond_resched(); 724 goto retry; 725 } else if (err != -ENOENT) { 726 f2fs_stop_checkpoint(sbi, false, 727 STOP_CP_REASON_UPDATE_INODE); 728 } 729 return; 730 } 731 f2fs_update_inode(inode, node_page); 732 f2fs_put_page(node_page, 1); 733 } 734 735 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) 736 { 737 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 738 739 if (inode->i_ino == F2FS_NODE_INO(sbi) || 740 inode->i_ino == F2FS_META_INO(sbi)) 741 return 0; 742 743 /* 744 * atime could be updated without dirtying f2fs inode in lazytime mode 745 */ 746 if (f2fs_is_time_consistent(inode) && 747 !is_inode_flag_set(inode, FI_DIRTY_INODE)) 748 return 0; 749 750 if (!f2fs_is_checkpoint_ready(sbi)) 751 return -ENOSPC; 752 753 /* 754 * We need to balance fs here to prevent from producing dirty node pages 755 * during the urgent cleaning time when running out of free sections. 756 */ 757 f2fs_update_inode_page(inode); 758 if (wbc && wbc->nr_to_write) 759 f2fs_balance_fs(sbi, true); 760 return 0; 761 } 762 763 /* 764 * Called at the last iput() if i_nlink is zero 765 */ 766 void f2fs_evict_inode(struct inode *inode) 767 { 768 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 769 nid_t xnid = F2FS_I(inode)->i_xattr_nid; 770 int err = 0; 771 772 f2fs_abort_atomic_write(inode, true); 773 774 trace_f2fs_evict_inode(inode); 775 truncate_inode_pages_final(&inode->i_data); 776 777 if ((inode->i_nlink || is_bad_inode(inode)) && 778 test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode)) 779 f2fs_invalidate_compress_pages(sbi, inode->i_ino); 780 781 if (inode->i_ino == F2FS_NODE_INO(sbi) || 782 inode->i_ino == F2FS_META_INO(sbi) || 783 inode->i_ino == F2FS_COMPRESS_INO(sbi)) 784 goto out_clear; 785 786 f2fs_bug_on(sbi, get_dirty_pages(inode)); 787 f2fs_remove_dirty_inode(inode); 788 789 f2fs_destroy_extent_tree(inode); 790 791 if (inode->i_nlink || is_bad_inode(inode)) 792 goto no_delete; 793 794 err = f2fs_dquot_initialize(inode); 795 if (err) { 796 err = 0; 797 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 798 } 799 800 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO); 801 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); 802 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); 803 804 if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING)) 805 sb_start_intwrite(inode->i_sb); 806 set_inode_flag(inode, FI_NO_ALLOC); 807 i_size_write(inode, 0); 808 retry: 809 if (F2FS_HAS_BLOCKS(inode)) 810 err = f2fs_truncate(inode); 811 812 if (time_to_inject(sbi, FAULT_EVICT_INODE)) { 813 f2fs_show_injection_info(sbi, FAULT_EVICT_INODE); 814 err = -EIO; 815 } 816 817 if (!err) { 818 f2fs_lock_op(sbi); 819 err = f2fs_remove_inode_page(inode); 820 f2fs_unlock_op(sbi); 821 if (err == -ENOENT) { 822 err = 0; 823 824 /* 825 * in fuzzed image, another node may has the same 826 * block address as inode's, if it was truncated 827 * previously, truncation of inode node will fail. 828 */ 829 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { 830 f2fs_warn(F2FS_I_SB(inode), 831 "f2fs_evict_inode: inconsistent node id, ino:%lu", 832 inode->i_ino); 833 f2fs_inode_synced(inode); 834 set_sbi_flag(sbi, SBI_NEED_FSCK); 835 } 836 } 837 } 838 839 /* give more chances, if ENOMEM case */ 840 if (err == -ENOMEM) { 841 err = 0; 842 goto retry; 843 } 844 845 if (err) { 846 f2fs_update_inode_page(inode); 847 if (dquot_initialize_needed(inode)) 848 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 849 } 850 if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING)) 851 sb_end_intwrite(inode->i_sb); 852 no_delete: 853 dquot_drop(inode); 854 855 stat_dec_inline_xattr(inode); 856 stat_dec_inline_dir(inode); 857 stat_dec_inline_inode(inode); 858 stat_dec_compr_inode(inode); 859 stat_sub_compr_blocks(inode, 860 atomic_read(&F2FS_I(inode)->i_compr_blocks)); 861 862 if (likely(!f2fs_cp_error(sbi) && 863 !is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 864 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); 865 else 866 f2fs_inode_synced(inode); 867 868 /* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */ 869 if (inode->i_ino) 870 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, 871 inode->i_ino); 872 if (xnid) 873 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); 874 if (inode->i_nlink) { 875 if (is_inode_flag_set(inode, FI_APPEND_WRITE)) 876 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO); 877 if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) 878 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO); 879 } 880 if (is_inode_flag_set(inode, FI_FREE_NID)) { 881 f2fs_alloc_nid_failed(sbi, inode->i_ino); 882 clear_inode_flag(inode, FI_FREE_NID); 883 } else { 884 /* 885 * If xattr nid is corrupted, we can reach out error condition, 886 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). 887 * In that case, f2fs_check_nid_range() is enough to give a clue. 888 */ 889 } 890 out_clear: 891 fscrypt_put_encryption_info(inode); 892 fsverity_cleanup_inode(inode); 893 clear_inode(inode); 894 } 895 896 /* caller should call f2fs_lock_op() */ 897 void f2fs_handle_failed_inode(struct inode *inode) 898 { 899 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 900 struct node_info ni; 901 int err; 902 903 /* 904 * clear nlink of inode in order to release resource of inode 905 * immediately. 906 */ 907 clear_nlink(inode); 908 909 /* 910 * we must call this to avoid inode being remained as dirty, resulting 911 * in a panic when flushing dirty inodes in gdirty_list. 912 */ 913 f2fs_update_inode_page(inode); 914 f2fs_inode_synced(inode); 915 916 /* don't make bad inode, since it becomes a regular file. */ 917 unlock_new_inode(inode); 918 919 /* 920 * Note: we should add inode to orphan list before f2fs_unlock_op() 921 * so we can prevent losing this orphan when encoutering checkpoint 922 * and following suddenly power-off. 923 */ 924 err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false); 925 if (err) { 926 set_sbi_flag(sbi, SBI_NEED_FSCK); 927 set_inode_flag(inode, FI_FREE_NID); 928 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix."); 929 goto out; 930 } 931 932 if (ni.blk_addr != NULL_ADDR) { 933 err = f2fs_acquire_orphan_inode(sbi); 934 if (err) { 935 set_sbi_flag(sbi, SBI_NEED_FSCK); 936 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix."); 937 } else { 938 f2fs_add_orphan_inode(inode); 939 } 940 f2fs_alloc_nid_done(sbi, inode->i_ino); 941 } else { 942 set_inode_flag(inode, FI_FREE_NID); 943 } 944 945 out: 946 f2fs_unlock_op(sbi); 947 948 /* iput will drop the inode object */ 949 iput(inode); 950 } 951