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/backing-dev.h> 12 #include <linux/writeback.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 void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync) 22 { 23 if (is_inode_flag_set(inode, FI_NEW_INODE)) 24 return; 25 26 if (f2fs_inode_dirtied(inode, sync)) 27 return; 28 29 mark_inode_dirty_sync(inode); 30 } 31 32 void f2fs_set_inode_flags(struct inode *inode) 33 { 34 unsigned int flags = F2FS_I(inode)->i_flags; 35 unsigned int new_fl = 0; 36 37 if (flags & F2FS_SYNC_FL) 38 new_fl |= S_SYNC; 39 if (flags & F2FS_APPEND_FL) 40 new_fl |= S_APPEND; 41 if (flags & F2FS_IMMUTABLE_FL) 42 new_fl |= S_IMMUTABLE; 43 if (flags & F2FS_NOATIME_FL) 44 new_fl |= S_NOATIME; 45 if (flags & F2FS_DIRSYNC_FL) 46 new_fl |= S_DIRSYNC; 47 if (file_is_encrypt(inode)) 48 new_fl |= S_ENCRYPTED; 49 if (file_is_verity(inode)) 50 new_fl |= S_VERITY; 51 if (flags & F2FS_CASEFOLD_FL) 52 new_fl |= S_CASEFOLD; 53 inode_set_flags(inode, new_fl, 54 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC| 55 S_ENCRYPTED|S_VERITY|S_CASEFOLD); 56 } 57 58 static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri) 59 { 60 int extra_size = get_extra_isize(inode); 61 62 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 63 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 64 if (ri->i_addr[extra_size]) 65 inode->i_rdev = old_decode_dev( 66 le32_to_cpu(ri->i_addr[extra_size])); 67 else 68 inode->i_rdev = new_decode_dev( 69 le32_to_cpu(ri->i_addr[extra_size + 1])); 70 } 71 } 72 73 static int __written_first_block(struct f2fs_sb_info *sbi, 74 struct f2fs_inode *ri) 75 { 76 block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); 77 78 if (!__is_valid_data_blkaddr(addr)) 79 return 1; 80 if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE)) 81 return -EFSCORRUPTED; 82 return 0; 83 } 84 85 static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) 86 { 87 int extra_size = get_extra_isize(inode); 88 89 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { 90 if (old_valid_dev(inode->i_rdev)) { 91 ri->i_addr[extra_size] = 92 cpu_to_le32(old_encode_dev(inode->i_rdev)); 93 ri->i_addr[extra_size + 1] = 0; 94 } else { 95 ri->i_addr[extra_size] = 0; 96 ri->i_addr[extra_size + 1] = 97 cpu_to_le32(new_encode_dev(inode->i_rdev)); 98 ri->i_addr[extra_size + 2] = 0; 99 } 100 } 101 } 102 103 static void __recover_inline_status(struct inode *inode, struct page *ipage) 104 { 105 void *inline_data = inline_data_addr(inode, ipage); 106 __le32 *start = inline_data; 107 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); 108 109 while (start < end) { 110 if (*start++) { 111 f2fs_wait_on_page_writeback(ipage, NODE, true, true); 112 113 set_inode_flag(inode, FI_DATA_EXIST); 114 set_raw_inline(inode, F2FS_INODE(ipage)); 115 set_page_dirty(ipage); 116 return; 117 } 118 } 119 return; 120 } 121 122 static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 123 { 124 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 125 126 if (!f2fs_sb_has_inode_chksum(sbi)) 127 return false; 128 129 if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR)) 130 return false; 131 132 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize), 133 i_inode_checksum)) 134 return false; 135 136 return true; 137 } 138 139 static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 140 { 141 struct f2fs_node *node = F2FS_NODE(page); 142 struct f2fs_inode *ri = &node->i; 143 __le32 ino = node->footer.ino; 144 __le32 gen = ri->i_generation; 145 __u32 chksum, chksum_seed; 146 __u32 dummy_cs = 0; 147 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); 148 unsigned int cs_size = sizeof(dummy_cs); 149 150 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, 151 sizeof(ino)); 152 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); 153 154 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); 155 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); 156 offset += cs_size; 157 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, 158 F2FS_BLKSIZE - offset); 159 return chksum; 160 } 161 162 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) 163 { 164 struct f2fs_inode *ri; 165 __u32 provided, calculated; 166 167 if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))) 168 return true; 169 170 #ifdef CONFIG_F2FS_CHECK_FS 171 if (!f2fs_enable_inode_chksum(sbi, page)) 172 #else 173 if (!f2fs_enable_inode_chksum(sbi, page) || 174 PageDirty(page) || PageWriteback(page)) 175 #endif 176 return true; 177 178 ri = &F2FS_NODE(page)->i; 179 provided = le32_to_cpu(ri->i_inode_checksum); 180 calculated = f2fs_inode_chksum(sbi, page); 181 182 if (provided != calculated) 183 f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x", 184 page->index, ino_of_node(page), provided, calculated); 185 186 return provided == calculated; 187 } 188 189 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) 190 { 191 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 192 193 if (!f2fs_enable_inode_chksum(sbi, page)) 194 return; 195 196 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); 197 } 198 199 static bool sanity_check_inode(struct inode *inode, struct page *node_page) 200 { 201 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 202 struct f2fs_inode_info *fi = F2FS_I(inode); 203 struct f2fs_inode *ri = F2FS_INODE(node_page); 204 unsigned long long iblocks; 205 206 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks); 207 if (!iblocks) { 208 set_sbi_flag(sbi, SBI_NEED_FSCK); 209 f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.", 210 __func__, inode->i_ino, iblocks); 211 return false; 212 } 213 214 if (ino_of_node(node_page) != nid_of_node(node_page)) { 215 set_sbi_flag(sbi, SBI_NEED_FSCK); 216 f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.", 217 __func__, inode->i_ino, 218 ino_of_node(node_page), nid_of_node(node_page)); 219 return false; 220 } 221 222 if (f2fs_sb_has_flexible_inline_xattr(sbi) 223 && !f2fs_has_extra_attr(inode)) { 224 set_sbi_flag(sbi, SBI_NEED_FSCK); 225 f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.", 226 __func__, inode->i_ino); 227 return false; 228 } 229 230 if (f2fs_has_extra_attr(inode) && 231 !f2fs_sb_has_extra_attr(sbi)) { 232 set_sbi_flag(sbi, SBI_NEED_FSCK); 233 f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off", 234 __func__, inode->i_ino); 235 return false; 236 } 237 238 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE || 239 fi->i_extra_isize % sizeof(__le32)) { 240 set_sbi_flag(sbi, SBI_NEED_FSCK); 241 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu", 242 __func__, inode->i_ino, fi->i_extra_isize, 243 F2FS_TOTAL_EXTRA_ATTR_SIZE); 244 return false; 245 } 246 247 if (f2fs_has_extra_attr(inode) && 248 f2fs_sb_has_flexible_inline_xattr(sbi) && 249 f2fs_has_inline_xattr(inode) && 250 (!fi->i_inline_xattr_size || 251 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) { 252 set_sbi_flag(sbi, SBI_NEED_FSCK); 253 f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu", 254 __func__, inode->i_ino, fi->i_inline_xattr_size, 255 MAX_INLINE_XATTR_SIZE); 256 return false; 257 } 258 259 if (F2FS_I(inode)->extent_tree) { 260 struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest; 261 262 if (ei->len && 263 (!f2fs_is_valid_blkaddr(sbi, ei->blk, 264 DATA_GENERIC_ENHANCE) || 265 !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1, 266 DATA_GENERIC_ENHANCE))) { 267 set_sbi_flag(sbi, SBI_NEED_FSCK); 268 f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix", 269 __func__, inode->i_ino, 270 ei->blk, ei->fofs, ei->len); 271 return false; 272 } 273 } 274 275 if (f2fs_has_inline_data(inode) && 276 (!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))) { 277 set_sbi_flag(sbi, SBI_NEED_FSCK); 278 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix", 279 __func__, inode->i_ino, inode->i_mode); 280 return false; 281 } 282 283 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) { 284 set_sbi_flag(sbi, SBI_NEED_FSCK); 285 f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix", 286 __func__, inode->i_ino, inode->i_mode); 287 return false; 288 } 289 290 if ((fi->i_flags & F2FS_CASEFOLD_FL) && !f2fs_sb_has_casefold(sbi)) { 291 set_sbi_flag(sbi, SBI_NEED_FSCK); 292 f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off", 293 __func__, inode->i_ino); 294 return false; 295 } 296 297 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) && 298 fi->i_flags & F2FS_COMPR_FL && 299 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 300 i_log_cluster_size)) { 301 if (ri->i_compress_algorithm >= COMPRESS_MAX) { 302 set_sbi_flag(sbi, SBI_NEED_FSCK); 303 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported " 304 "compress algorithm: %u, run fsck to fix", 305 __func__, inode->i_ino, 306 ri->i_compress_algorithm); 307 return false; 308 } 309 if (le64_to_cpu(ri->i_compr_blocks) > 310 SECTOR_TO_BLOCK(inode->i_blocks)) { 311 set_sbi_flag(sbi, SBI_NEED_FSCK); 312 f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent " 313 "i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix", 314 __func__, inode->i_ino, 315 le64_to_cpu(ri->i_compr_blocks), 316 SECTOR_TO_BLOCK(inode->i_blocks)); 317 return false; 318 } 319 if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE || 320 ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) { 321 set_sbi_flag(sbi, SBI_NEED_FSCK); 322 f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported " 323 "log cluster size: %u, run fsck to fix", 324 __func__, inode->i_ino, 325 ri->i_log_cluster_size); 326 return false; 327 } 328 } 329 330 return true; 331 } 332 333 static int do_read_inode(struct inode *inode) 334 { 335 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 336 struct f2fs_inode_info *fi = F2FS_I(inode); 337 struct page *node_page; 338 struct f2fs_inode *ri; 339 projid_t i_projid; 340 int err; 341 342 /* Check if ino is within scope */ 343 if (f2fs_check_nid_range(sbi, inode->i_ino)) 344 return -EINVAL; 345 346 node_page = f2fs_get_node_page(sbi, inode->i_ino); 347 if (IS_ERR(node_page)) 348 return PTR_ERR(node_page); 349 350 ri = F2FS_INODE(node_page); 351 352 inode->i_mode = le16_to_cpu(ri->i_mode); 353 i_uid_write(inode, le32_to_cpu(ri->i_uid)); 354 i_gid_write(inode, le32_to_cpu(ri->i_gid)); 355 set_nlink(inode, le32_to_cpu(ri->i_links)); 356 inode->i_size = le64_to_cpu(ri->i_size); 357 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); 358 359 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); 360 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); 361 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); 362 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); 363 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); 364 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); 365 inode->i_generation = le32_to_cpu(ri->i_generation); 366 if (S_ISDIR(inode->i_mode)) 367 fi->i_current_depth = le32_to_cpu(ri->i_current_depth); 368 else if (S_ISREG(inode->i_mode)) 369 fi->i_gc_failures[GC_FAILURE_PIN] = 370 le16_to_cpu(ri->i_gc_failures); 371 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); 372 fi->i_flags = le32_to_cpu(ri->i_flags); 373 if (S_ISREG(inode->i_mode)) 374 fi->i_flags &= ~F2FS_PROJINHERIT_FL; 375 bitmap_zero(fi->flags, FI_MAX); 376 fi->i_advise = ri->i_advise; 377 fi->i_pino = le32_to_cpu(ri->i_pino); 378 fi->i_dir_level = ri->i_dir_level; 379 380 f2fs_init_extent_tree(inode, node_page); 381 382 get_inline_info(inode, ri); 383 384 fi->i_extra_isize = f2fs_has_extra_attr(inode) ? 385 le16_to_cpu(ri->i_extra_isize) : 0; 386 387 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 388 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); 389 } else if (f2fs_has_inline_xattr(inode) || 390 f2fs_has_inline_dentry(inode)) { 391 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 392 } else { 393 394 /* 395 * Previous inline data or directory always reserved 200 bytes 396 * in inode layout, even if inline_xattr is disabled. In order 397 * to keep inline_dentry's structure for backward compatibility, 398 * we get the space back only from inline_data. 399 */ 400 fi->i_inline_xattr_size = 0; 401 } 402 403 if (!sanity_check_inode(inode, node_page)) { 404 f2fs_put_page(node_page, 1); 405 return -EFSCORRUPTED; 406 } 407 408 /* check data exist */ 409 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) 410 __recover_inline_status(inode, node_page); 411 412 /* try to recover cold bit for non-dir inode */ 413 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) { 414 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 415 set_cold_node(node_page, false); 416 set_page_dirty(node_page); 417 } 418 419 /* get rdev by using inline_info */ 420 __get_inode_rdev(inode, ri); 421 422 if (S_ISREG(inode->i_mode)) { 423 err = __written_first_block(sbi, ri); 424 if (err < 0) { 425 f2fs_put_page(node_page, 1); 426 return err; 427 } 428 if (!err) 429 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); 430 } 431 432 if (!f2fs_need_inode_block_update(sbi, inode->i_ino)) 433 fi->last_disk_size = inode->i_size; 434 435 if (fi->i_flags & F2FS_PROJINHERIT_FL) 436 set_inode_flag(inode, FI_PROJ_INHERIT); 437 438 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) && 439 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) 440 i_projid = (projid_t)le32_to_cpu(ri->i_projid); 441 else 442 i_projid = F2FS_DEF_PROJID; 443 fi->i_projid = make_kprojid(&init_user_ns, i_projid); 444 445 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) && 446 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { 447 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime); 448 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec); 449 } 450 451 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) && 452 (fi->i_flags & F2FS_COMPR_FL)) { 453 if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 454 i_log_cluster_size)) { 455 atomic_set(&fi->i_compr_blocks, 456 le64_to_cpu(ri->i_compr_blocks)); 457 fi->i_compress_algorithm = ri->i_compress_algorithm; 458 fi->i_log_cluster_size = ri->i_log_cluster_size; 459 fi->i_cluster_size = 1 << fi->i_log_cluster_size; 460 set_inode_flag(inode, FI_COMPRESSED_FILE); 461 } 462 } 463 464 F2FS_I(inode)->i_disk_time[0] = inode->i_atime; 465 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; 466 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; 467 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; 468 f2fs_put_page(node_page, 1); 469 470 stat_inc_inline_xattr(inode); 471 stat_inc_inline_inode(inode); 472 stat_inc_inline_dir(inode); 473 stat_inc_compr_inode(inode); 474 stat_add_compr_blocks(inode, atomic_read(&fi->i_compr_blocks)); 475 476 return 0; 477 } 478 479 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) 480 { 481 struct f2fs_sb_info *sbi = F2FS_SB(sb); 482 struct inode *inode; 483 int ret = 0; 484 485 inode = iget_locked(sb, ino); 486 if (!inode) 487 return ERR_PTR(-ENOMEM); 488 489 if (!(inode->i_state & I_NEW)) { 490 trace_f2fs_iget(inode); 491 return inode; 492 } 493 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) 494 goto make_now; 495 496 ret = do_read_inode(inode); 497 if (ret) 498 goto bad_inode; 499 make_now: 500 if (ino == F2FS_NODE_INO(sbi)) { 501 inode->i_mapping->a_ops = &f2fs_node_aops; 502 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 503 } else if (ino == F2FS_META_INO(sbi)) { 504 inode->i_mapping->a_ops = &f2fs_meta_aops; 505 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 506 } else if (S_ISREG(inode->i_mode)) { 507 inode->i_op = &f2fs_file_inode_operations; 508 inode->i_fop = &f2fs_file_operations; 509 inode->i_mapping->a_ops = &f2fs_dblock_aops; 510 } else if (S_ISDIR(inode->i_mode)) { 511 inode->i_op = &f2fs_dir_inode_operations; 512 inode->i_fop = &f2fs_dir_operations; 513 inode->i_mapping->a_ops = &f2fs_dblock_aops; 514 inode_nohighmem(inode); 515 } else if (S_ISLNK(inode->i_mode)) { 516 if (file_is_encrypt(inode)) 517 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 518 else 519 inode->i_op = &f2fs_symlink_inode_operations; 520 inode_nohighmem(inode); 521 inode->i_mapping->a_ops = &f2fs_dblock_aops; 522 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 523 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 524 inode->i_op = &f2fs_special_inode_operations; 525 init_special_inode(inode, inode->i_mode, inode->i_rdev); 526 } else { 527 ret = -EIO; 528 goto bad_inode; 529 } 530 f2fs_set_inode_flags(inode); 531 unlock_new_inode(inode); 532 trace_f2fs_iget(inode); 533 return inode; 534 535 bad_inode: 536 f2fs_inode_synced(inode); 537 iget_failed(inode); 538 trace_f2fs_iget_exit(inode, ret); 539 return ERR_PTR(ret); 540 } 541 542 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) 543 { 544 struct inode *inode; 545 retry: 546 inode = f2fs_iget(sb, ino); 547 if (IS_ERR(inode)) { 548 if (PTR_ERR(inode) == -ENOMEM) { 549 congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT); 550 goto retry; 551 } 552 } 553 return inode; 554 } 555 556 void f2fs_update_inode(struct inode *inode, struct page *node_page) 557 { 558 struct f2fs_inode *ri; 559 struct extent_tree *et = F2FS_I(inode)->extent_tree; 560 561 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 562 set_page_dirty(node_page); 563 564 f2fs_inode_synced(inode); 565 566 ri = F2FS_INODE(node_page); 567 568 ri->i_mode = cpu_to_le16(inode->i_mode); 569 ri->i_advise = F2FS_I(inode)->i_advise; 570 ri->i_uid = cpu_to_le32(i_uid_read(inode)); 571 ri->i_gid = cpu_to_le32(i_gid_read(inode)); 572 ri->i_links = cpu_to_le32(inode->i_nlink); 573 ri->i_size = cpu_to_le64(i_size_read(inode)); 574 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); 575 576 if (et) { 577 read_lock(&et->lock); 578 set_raw_extent(&et->largest, &ri->i_ext); 579 read_unlock(&et->lock); 580 } else { 581 memset(&ri->i_ext, 0, sizeof(ri->i_ext)); 582 } 583 set_raw_inline(inode, ri); 584 585 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); 586 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); 587 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); 588 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); 589 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); 590 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); 591 if (S_ISDIR(inode->i_mode)) 592 ri->i_current_depth = 593 cpu_to_le32(F2FS_I(inode)->i_current_depth); 594 else if (S_ISREG(inode->i_mode)) 595 ri->i_gc_failures = 596 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]); 597 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); 598 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); 599 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); 600 ri->i_generation = cpu_to_le32(inode->i_generation); 601 ri->i_dir_level = F2FS_I(inode)->i_dir_level; 602 603 if (f2fs_has_extra_attr(inode)) { 604 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); 605 606 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode))) 607 ri->i_inline_xattr_size = 608 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); 609 610 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) && 611 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 612 i_projid)) { 613 projid_t i_projid; 614 615 i_projid = from_kprojid(&init_user_ns, 616 F2FS_I(inode)->i_projid); 617 ri->i_projid = cpu_to_le32(i_projid); 618 } 619 620 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && 621 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 622 i_crtime)) { 623 ri->i_crtime = 624 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec); 625 ri->i_crtime_nsec = 626 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec); 627 } 628 629 if (f2fs_sb_has_compression(F2FS_I_SB(inode)) && 630 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 631 i_log_cluster_size)) { 632 ri->i_compr_blocks = 633 cpu_to_le64(atomic_read( 634 &F2FS_I(inode)->i_compr_blocks)); 635 ri->i_compress_algorithm = 636 F2FS_I(inode)->i_compress_algorithm; 637 ri->i_log_cluster_size = 638 F2FS_I(inode)->i_log_cluster_size; 639 } 640 } 641 642 __set_inode_rdev(inode, ri); 643 644 /* deleted inode */ 645 if (inode->i_nlink == 0) 646 clear_inline_node(node_page); 647 648 F2FS_I(inode)->i_disk_time[0] = inode->i_atime; 649 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; 650 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; 651 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; 652 653 #ifdef CONFIG_F2FS_CHECK_FS 654 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page); 655 #endif 656 } 657 658 void f2fs_update_inode_page(struct inode *inode) 659 { 660 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 661 struct page *node_page; 662 retry: 663 node_page = f2fs_get_node_page(sbi, inode->i_ino); 664 if (IS_ERR(node_page)) { 665 int err = PTR_ERR(node_page); 666 if (err == -ENOMEM) { 667 cond_resched(); 668 goto retry; 669 } else if (err != -ENOENT) { 670 f2fs_stop_checkpoint(sbi, false); 671 } 672 return; 673 } 674 f2fs_update_inode(inode, node_page); 675 f2fs_put_page(node_page, 1); 676 } 677 678 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) 679 { 680 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 681 682 if (inode->i_ino == F2FS_NODE_INO(sbi) || 683 inode->i_ino == F2FS_META_INO(sbi)) 684 return 0; 685 686 /* 687 * atime could be updated without dirtying f2fs inode in lazytime mode 688 */ 689 if (f2fs_is_time_consistent(inode) && 690 !is_inode_flag_set(inode, FI_DIRTY_INODE)) 691 return 0; 692 693 if (!f2fs_is_checkpoint_ready(sbi)) 694 return -ENOSPC; 695 696 /* 697 * We need to balance fs here to prevent from producing dirty node pages 698 * during the urgent cleaning time when runing out of free sections. 699 */ 700 f2fs_update_inode_page(inode); 701 if (wbc && wbc->nr_to_write) 702 f2fs_balance_fs(sbi, true); 703 return 0; 704 } 705 706 /* 707 * Called at the last iput() if i_nlink is zero 708 */ 709 void f2fs_evict_inode(struct inode *inode) 710 { 711 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 712 nid_t xnid = F2FS_I(inode)->i_xattr_nid; 713 int err = 0; 714 715 /* some remained atomic pages should discarded */ 716 if (f2fs_is_atomic_file(inode)) 717 f2fs_drop_inmem_pages(inode); 718 719 trace_f2fs_evict_inode(inode); 720 truncate_inode_pages_final(&inode->i_data); 721 722 if (inode->i_ino == F2FS_NODE_INO(sbi) || 723 inode->i_ino == F2FS_META_INO(sbi)) 724 goto out_clear; 725 726 f2fs_bug_on(sbi, get_dirty_pages(inode)); 727 f2fs_remove_dirty_inode(inode); 728 729 f2fs_destroy_extent_tree(inode); 730 731 if (inode->i_nlink || is_bad_inode(inode)) 732 goto no_delete; 733 734 err = dquot_initialize(inode); 735 if (err) { 736 err = 0; 737 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 738 } 739 740 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO); 741 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); 742 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); 743 744 sb_start_intwrite(inode->i_sb); 745 set_inode_flag(inode, FI_NO_ALLOC); 746 i_size_write(inode, 0); 747 retry: 748 if (F2FS_HAS_BLOCKS(inode)) 749 err = f2fs_truncate(inode); 750 751 if (time_to_inject(sbi, FAULT_EVICT_INODE)) { 752 f2fs_show_injection_info(sbi, FAULT_EVICT_INODE); 753 err = -EIO; 754 } 755 756 if (!err) { 757 f2fs_lock_op(sbi); 758 err = f2fs_remove_inode_page(inode); 759 f2fs_unlock_op(sbi); 760 if (err == -ENOENT) 761 err = 0; 762 } 763 764 /* give more chances, if ENOMEM case */ 765 if (err == -ENOMEM) { 766 err = 0; 767 goto retry; 768 } 769 770 if (err) { 771 f2fs_update_inode_page(inode); 772 if (dquot_initialize_needed(inode)) 773 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 774 } 775 sb_end_intwrite(inode->i_sb); 776 no_delete: 777 dquot_drop(inode); 778 779 stat_dec_inline_xattr(inode); 780 stat_dec_inline_dir(inode); 781 stat_dec_inline_inode(inode); 782 stat_dec_compr_inode(inode); 783 stat_sub_compr_blocks(inode, 784 atomic_read(&F2FS_I(inode)->i_compr_blocks)); 785 786 if (likely(!f2fs_cp_error(sbi) && 787 !is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 788 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); 789 else 790 f2fs_inode_synced(inode); 791 792 /* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */ 793 if (inode->i_ino) 794 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, 795 inode->i_ino); 796 if (xnid) 797 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); 798 if (inode->i_nlink) { 799 if (is_inode_flag_set(inode, FI_APPEND_WRITE)) 800 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO); 801 if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) 802 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO); 803 } 804 if (is_inode_flag_set(inode, FI_FREE_NID)) { 805 f2fs_alloc_nid_failed(sbi, inode->i_ino); 806 clear_inode_flag(inode, FI_FREE_NID); 807 } else { 808 /* 809 * If xattr nid is corrupted, we can reach out error condition, 810 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). 811 * In that case, f2fs_check_nid_range() is enough to give a clue. 812 */ 813 } 814 out_clear: 815 fscrypt_put_encryption_info(inode); 816 fsverity_cleanup_inode(inode); 817 clear_inode(inode); 818 } 819 820 /* caller should call f2fs_lock_op() */ 821 void f2fs_handle_failed_inode(struct inode *inode) 822 { 823 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 824 struct node_info ni; 825 int err; 826 827 /* 828 * clear nlink of inode in order to release resource of inode 829 * immediately. 830 */ 831 clear_nlink(inode); 832 833 /* 834 * we must call this to avoid inode being remained as dirty, resulting 835 * in a panic when flushing dirty inodes in gdirty_list. 836 */ 837 f2fs_update_inode_page(inode); 838 f2fs_inode_synced(inode); 839 840 /* don't make bad inode, since it becomes a regular file. */ 841 unlock_new_inode(inode); 842 843 /* 844 * Note: we should add inode to orphan list before f2fs_unlock_op() 845 * so we can prevent losing this orphan when encoutering checkpoint 846 * and following suddenly power-off. 847 */ 848 err = f2fs_get_node_info(sbi, inode->i_ino, &ni); 849 if (err) { 850 set_sbi_flag(sbi, SBI_NEED_FSCK); 851 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix."); 852 goto out; 853 } 854 855 if (ni.blk_addr != NULL_ADDR) { 856 err = f2fs_acquire_orphan_inode(sbi); 857 if (err) { 858 set_sbi_flag(sbi, SBI_NEED_FSCK); 859 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix."); 860 } else { 861 f2fs_add_orphan_inode(inode); 862 } 863 f2fs_alloc_nid_done(sbi, inode->i_ino); 864 } else { 865 set_inode_flag(inode, FI_FREE_NID); 866 } 867 868 out: 869 f2fs_unlock_op(sbi); 870 871 /* iput will drop the inode object */ 872 iput(inode); 873 } 874