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 (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) && 291 fi->i_flags & F2FS_COMPR_FL && 292 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 293 i_log_cluster_size)) { 294 if (ri->i_compress_algorithm >= COMPRESS_MAX) 295 return false; 296 if (le64_to_cpu(ri->i_compr_blocks) > inode->i_blocks) 297 return false; 298 if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE || 299 ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) 300 return false; 301 } 302 303 return true; 304 } 305 306 static int do_read_inode(struct inode *inode) 307 { 308 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 309 struct f2fs_inode_info *fi = F2FS_I(inode); 310 struct page *node_page; 311 struct f2fs_inode *ri; 312 projid_t i_projid; 313 int err; 314 315 /* Check if ino is within scope */ 316 if (f2fs_check_nid_range(sbi, inode->i_ino)) 317 return -EINVAL; 318 319 node_page = f2fs_get_node_page(sbi, inode->i_ino); 320 if (IS_ERR(node_page)) 321 return PTR_ERR(node_page); 322 323 ri = F2FS_INODE(node_page); 324 325 inode->i_mode = le16_to_cpu(ri->i_mode); 326 i_uid_write(inode, le32_to_cpu(ri->i_uid)); 327 i_gid_write(inode, le32_to_cpu(ri->i_gid)); 328 set_nlink(inode, le32_to_cpu(ri->i_links)); 329 inode->i_size = le64_to_cpu(ri->i_size); 330 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); 331 332 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); 333 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); 334 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); 335 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); 336 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); 337 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); 338 inode->i_generation = le32_to_cpu(ri->i_generation); 339 if (S_ISDIR(inode->i_mode)) 340 fi->i_current_depth = le32_to_cpu(ri->i_current_depth); 341 else if (S_ISREG(inode->i_mode)) 342 fi->i_gc_failures[GC_FAILURE_PIN] = 343 le16_to_cpu(ri->i_gc_failures); 344 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); 345 fi->i_flags = le32_to_cpu(ri->i_flags); 346 if (S_ISREG(inode->i_mode)) 347 fi->i_flags &= ~F2FS_PROJINHERIT_FL; 348 fi->flags = 0; 349 fi->i_advise = ri->i_advise; 350 fi->i_pino = le32_to_cpu(ri->i_pino); 351 fi->i_dir_level = ri->i_dir_level; 352 353 if (f2fs_init_extent_tree(inode, &ri->i_ext)) 354 set_page_dirty(node_page); 355 356 get_inline_info(inode, ri); 357 358 fi->i_extra_isize = f2fs_has_extra_attr(inode) ? 359 le16_to_cpu(ri->i_extra_isize) : 0; 360 361 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 362 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); 363 } else if (f2fs_has_inline_xattr(inode) || 364 f2fs_has_inline_dentry(inode)) { 365 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 366 } else { 367 368 /* 369 * Previous inline data or directory always reserved 200 bytes 370 * in inode layout, even if inline_xattr is disabled. In order 371 * to keep inline_dentry's structure for backward compatibility, 372 * we get the space back only from inline_data. 373 */ 374 fi->i_inline_xattr_size = 0; 375 } 376 377 if (!sanity_check_inode(inode, node_page)) { 378 f2fs_put_page(node_page, 1); 379 return -EFSCORRUPTED; 380 } 381 382 /* check data exist */ 383 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) 384 __recover_inline_status(inode, node_page); 385 386 /* try to recover cold bit for non-dir inode */ 387 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) { 388 set_cold_node(node_page, false); 389 set_page_dirty(node_page); 390 } 391 392 /* get rdev by using inline_info */ 393 __get_inode_rdev(inode, ri); 394 395 if (S_ISREG(inode->i_mode)) { 396 err = __written_first_block(sbi, ri); 397 if (err < 0) { 398 f2fs_put_page(node_page, 1); 399 return err; 400 } 401 if (!err) 402 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); 403 } 404 405 if (!f2fs_need_inode_block_update(sbi, inode->i_ino)) 406 fi->last_disk_size = inode->i_size; 407 408 if (fi->i_flags & F2FS_PROJINHERIT_FL) 409 set_inode_flag(inode, FI_PROJ_INHERIT); 410 411 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) && 412 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) 413 i_projid = (projid_t)le32_to_cpu(ri->i_projid); 414 else 415 i_projid = F2FS_DEF_PROJID; 416 fi->i_projid = make_kprojid(&init_user_ns, i_projid); 417 418 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) && 419 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { 420 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime); 421 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec); 422 } 423 424 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) && 425 (fi->i_flags & F2FS_COMPR_FL)) { 426 if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, 427 i_log_cluster_size)) { 428 fi->i_compr_blocks = le64_to_cpu(ri->i_compr_blocks); 429 fi->i_compress_algorithm = ri->i_compress_algorithm; 430 fi->i_log_cluster_size = ri->i_log_cluster_size; 431 fi->i_cluster_size = 1 << fi->i_log_cluster_size; 432 set_inode_flag(inode, FI_COMPRESSED_FILE); 433 } 434 } 435 436 F2FS_I(inode)->i_disk_time[0] = inode->i_atime; 437 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; 438 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; 439 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; 440 f2fs_put_page(node_page, 1); 441 442 stat_inc_inline_xattr(inode); 443 stat_inc_inline_inode(inode); 444 stat_inc_inline_dir(inode); 445 stat_inc_compr_inode(inode); 446 stat_add_compr_blocks(inode, F2FS_I(inode)->i_compr_blocks); 447 448 return 0; 449 } 450 451 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) 452 { 453 struct f2fs_sb_info *sbi = F2FS_SB(sb); 454 struct inode *inode; 455 int ret = 0; 456 457 inode = iget_locked(sb, ino); 458 if (!inode) 459 return ERR_PTR(-ENOMEM); 460 461 if (!(inode->i_state & I_NEW)) { 462 trace_f2fs_iget(inode); 463 return inode; 464 } 465 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) 466 goto make_now; 467 468 ret = do_read_inode(inode); 469 if (ret) 470 goto bad_inode; 471 make_now: 472 if (ino == F2FS_NODE_INO(sbi)) { 473 inode->i_mapping->a_ops = &f2fs_node_aops; 474 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 475 } else if (ino == F2FS_META_INO(sbi)) { 476 inode->i_mapping->a_ops = &f2fs_meta_aops; 477 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 478 } else if (S_ISREG(inode->i_mode)) { 479 inode->i_op = &f2fs_file_inode_operations; 480 inode->i_fop = &f2fs_file_operations; 481 inode->i_mapping->a_ops = &f2fs_dblock_aops; 482 } else if (S_ISDIR(inode->i_mode)) { 483 inode->i_op = &f2fs_dir_inode_operations; 484 inode->i_fop = &f2fs_dir_operations; 485 inode->i_mapping->a_ops = &f2fs_dblock_aops; 486 inode_nohighmem(inode); 487 } else if (S_ISLNK(inode->i_mode)) { 488 if (file_is_encrypt(inode)) 489 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 490 else 491 inode->i_op = &f2fs_symlink_inode_operations; 492 inode_nohighmem(inode); 493 inode->i_mapping->a_ops = &f2fs_dblock_aops; 494 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 495 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 496 inode->i_op = &f2fs_special_inode_operations; 497 init_special_inode(inode, inode->i_mode, inode->i_rdev); 498 } else { 499 ret = -EIO; 500 goto bad_inode; 501 } 502 f2fs_set_inode_flags(inode); 503 unlock_new_inode(inode); 504 trace_f2fs_iget(inode); 505 return inode; 506 507 bad_inode: 508 f2fs_inode_synced(inode); 509 iget_failed(inode); 510 trace_f2fs_iget_exit(inode, ret); 511 return ERR_PTR(ret); 512 } 513 514 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) 515 { 516 struct inode *inode; 517 retry: 518 inode = f2fs_iget(sb, ino); 519 if (IS_ERR(inode)) { 520 if (PTR_ERR(inode) == -ENOMEM) { 521 congestion_wait(BLK_RW_ASYNC, HZ/50); 522 goto retry; 523 } 524 } 525 return inode; 526 } 527 528 void f2fs_update_inode(struct inode *inode, struct page *node_page) 529 { 530 struct f2fs_inode *ri; 531 struct extent_tree *et = F2FS_I(inode)->extent_tree; 532 533 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 534 set_page_dirty(node_page); 535 536 f2fs_inode_synced(inode); 537 538 ri = F2FS_INODE(node_page); 539 540 ri->i_mode = cpu_to_le16(inode->i_mode); 541 ri->i_advise = F2FS_I(inode)->i_advise; 542 ri->i_uid = cpu_to_le32(i_uid_read(inode)); 543 ri->i_gid = cpu_to_le32(i_gid_read(inode)); 544 ri->i_links = cpu_to_le32(inode->i_nlink); 545 ri->i_size = cpu_to_le64(i_size_read(inode)); 546 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); 547 548 if (et) { 549 read_lock(&et->lock); 550 set_raw_extent(&et->largest, &ri->i_ext); 551 read_unlock(&et->lock); 552 } else { 553 memset(&ri->i_ext, 0, sizeof(ri->i_ext)); 554 } 555 set_raw_inline(inode, ri); 556 557 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); 558 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); 559 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); 560 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); 561 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); 562 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); 563 if (S_ISDIR(inode->i_mode)) 564 ri->i_current_depth = 565 cpu_to_le32(F2FS_I(inode)->i_current_depth); 566 else if (S_ISREG(inode->i_mode)) 567 ri->i_gc_failures = 568 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]); 569 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); 570 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); 571 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); 572 ri->i_generation = cpu_to_le32(inode->i_generation); 573 ri->i_dir_level = F2FS_I(inode)->i_dir_level; 574 575 if (f2fs_has_extra_attr(inode)) { 576 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); 577 578 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode))) 579 ri->i_inline_xattr_size = 580 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); 581 582 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) && 583 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 584 i_projid)) { 585 projid_t i_projid; 586 587 i_projid = from_kprojid(&init_user_ns, 588 F2FS_I(inode)->i_projid); 589 ri->i_projid = cpu_to_le32(i_projid); 590 } 591 592 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && 593 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 594 i_crtime)) { 595 ri->i_crtime = 596 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec); 597 ri->i_crtime_nsec = 598 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec); 599 } 600 601 if (f2fs_sb_has_compression(F2FS_I_SB(inode)) && 602 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 603 i_log_cluster_size)) { 604 ri->i_compr_blocks = 605 cpu_to_le64(F2FS_I(inode)->i_compr_blocks); 606 ri->i_compress_algorithm = 607 F2FS_I(inode)->i_compress_algorithm; 608 ri->i_log_cluster_size = 609 F2FS_I(inode)->i_log_cluster_size; 610 } 611 } 612 613 __set_inode_rdev(inode, ri); 614 615 /* deleted inode */ 616 if (inode->i_nlink == 0) 617 clear_inline_node(node_page); 618 619 F2FS_I(inode)->i_disk_time[0] = inode->i_atime; 620 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; 621 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; 622 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; 623 624 #ifdef CONFIG_F2FS_CHECK_FS 625 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page); 626 #endif 627 } 628 629 void f2fs_update_inode_page(struct inode *inode) 630 { 631 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 632 struct page *node_page; 633 retry: 634 node_page = f2fs_get_node_page(sbi, inode->i_ino); 635 if (IS_ERR(node_page)) { 636 int err = PTR_ERR(node_page); 637 if (err == -ENOMEM) { 638 cond_resched(); 639 goto retry; 640 } else if (err != -ENOENT) { 641 f2fs_stop_checkpoint(sbi, false); 642 } 643 return; 644 } 645 f2fs_update_inode(inode, node_page); 646 f2fs_put_page(node_page, 1); 647 } 648 649 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) 650 { 651 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 652 653 if (inode->i_ino == F2FS_NODE_INO(sbi) || 654 inode->i_ino == F2FS_META_INO(sbi)) 655 return 0; 656 657 /* 658 * atime could be updated without dirtying f2fs inode in lazytime mode 659 */ 660 if (f2fs_is_time_consistent(inode) && 661 !is_inode_flag_set(inode, FI_DIRTY_INODE)) 662 return 0; 663 664 if (!f2fs_is_checkpoint_ready(sbi)) 665 return -ENOSPC; 666 667 /* 668 * We need to balance fs here to prevent from producing dirty node pages 669 * during the urgent cleaning time when runing out of free sections. 670 */ 671 f2fs_update_inode_page(inode); 672 if (wbc && wbc->nr_to_write) 673 f2fs_balance_fs(sbi, true); 674 return 0; 675 } 676 677 /* 678 * Called at the last iput() if i_nlink is zero 679 */ 680 void f2fs_evict_inode(struct inode *inode) 681 { 682 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 683 nid_t xnid = F2FS_I(inode)->i_xattr_nid; 684 int err = 0; 685 686 /* some remained atomic pages should discarded */ 687 if (f2fs_is_atomic_file(inode)) 688 f2fs_drop_inmem_pages(inode); 689 690 trace_f2fs_evict_inode(inode); 691 truncate_inode_pages_final(&inode->i_data); 692 693 if (inode->i_ino == F2FS_NODE_INO(sbi) || 694 inode->i_ino == F2FS_META_INO(sbi)) 695 goto out_clear; 696 697 f2fs_bug_on(sbi, get_dirty_pages(inode)); 698 f2fs_remove_dirty_inode(inode); 699 700 f2fs_destroy_extent_tree(inode); 701 702 if (inode->i_nlink || is_bad_inode(inode)) 703 goto no_delete; 704 705 err = dquot_initialize(inode); 706 if (err) { 707 err = 0; 708 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 709 } 710 711 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO); 712 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); 713 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); 714 715 sb_start_intwrite(inode->i_sb); 716 set_inode_flag(inode, FI_NO_ALLOC); 717 i_size_write(inode, 0); 718 retry: 719 if (F2FS_HAS_BLOCKS(inode)) 720 err = f2fs_truncate(inode); 721 722 if (time_to_inject(sbi, FAULT_EVICT_INODE)) { 723 f2fs_show_injection_info(sbi, FAULT_EVICT_INODE); 724 err = -EIO; 725 } 726 727 if (!err) { 728 f2fs_lock_op(sbi); 729 err = f2fs_remove_inode_page(inode); 730 f2fs_unlock_op(sbi); 731 if (err == -ENOENT) 732 err = 0; 733 } 734 735 /* give more chances, if ENOMEM case */ 736 if (err == -ENOMEM) { 737 err = 0; 738 goto retry; 739 } 740 741 if (err) { 742 f2fs_update_inode_page(inode); 743 if (dquot_initialize_needed(inode)) 744 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 745 } 746 sb_end_intwrite(inode->i_sb); 747 no_delete: 748 dquot_drop(inode); 749 750 stat_dec_inline_xattr(inode); 751 stat_dec_inline_dir(inode); 752 stat_dec_inline_inode(inode); 753 stat_dec_compr_inode(inode); 754 stat_sub_compr_blocks(inode, F2FS_I(inode)->i_compr_blocks); 755 756 if (likely(!f2fs_cp_error(sbi) && 757 !is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 758 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); 759 else 760 f2fs_inode_synced(inode); 761 762 /* ino == 0, if f2fs_new_inode() was failed t*/ 763 if (inode->i_ino) 764 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, 765 inode->i_ino); 766 if (xnid) 767 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); 768 if (inode->i_nlink) { 769 if (is_inode_flag_set(inode, FI_APPEND_WRITE)) 770 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO); 771 if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) 772 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO); 773 } 774 if (is_inode_flag_set(inode, FI_FREE_NID)) { 775 f2fs_alloc_nid_failed(sbi, inode->i_ino); 776 clear_inode_flag(inode, FI_FREE_NID); 777 } else { 778 /* 779 * If xattr nid is corrupted, we can reach out error condition, 780 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). 781 * In that case, f2fs_check_nid_range() is enough to give a clue. 782 */ 783 } 784 out_clear: 785 fscrypt_put_encryption_info(inode); 786 fsverity_cleanup_inode(inode); 787 clear_inode(inode); 788 } 789 790 /* caller should call f2fs_lock_op() */ 791 void f2fs_handle_failed_inode(struct inode *inode) 792 { 793 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 794 struct node_info ni; 795 int err; 796 797 /* 798 * clear nlink of inode in order to release resource of inode 799 * immediately. 800 */ 801 clear_nlink(inode); 802 803 /* 804 * we must call this to avoid inode being remained as dirty, resulting 805 * in a panic when flushing dirty inodes in gdirty_list. 806 */ 807 f2fs_update_inode_page(inode); 808 f2fs_inode_synced(inode); 809 810 /* don't make bad inode, since it becomes a regular file. */ 811 unlock_new_inode(inode); 812 813 /* 814 * Note: we should add inode to orphan list before f2fs_unlock_op() 815 * so we can prevent losing this orphan when encoutering checkpoint 816 * and following suddenly power-off. 817 */ 818 err = f2fs_get_node_info(sbi, inode->i_ino, &ni); 819 if (err) { 820 set_sbi_flag(sbi, SBI_NEED_FSCK); 821 f2fs_warn(sbi, "May loss orphan inode, run fsck to fix."); 822 goto out; 823 } 824 825 if (ni.blk_addr != NULL_ADDR) { 826 err = f2fs_acquire_orphan_inode(sbi); 827 if (err) { 828 set_sbi_flag(sbi, SBI_NEED_FSCK); 829 f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix."); 830 } else { 831 f2fs_add_orphan_inode(inode); 832 } 833 f2fs_alloc_nid_done(sbi, inode->i_ino); 834 } else { 835 set_inode_flag(inode, FI_FREE_NID); 836 } 837 838 out: 839 f2fs_unlock_op(sbi); 840 841 /* iput will drop the inode object */ 842 iput(inode); 843 } 844