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 inode_set_flags(inode, new_fl, 50 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC| 51 S_ENCRYPTED); 52 } 53 54 static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri) 55 { 56 int extra_size = get_extra_isize(inode); 57 58 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 59 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 60 if (ri->i_addr[extra_size]) 61 inode->i_rdev = old_decode_dev( 62 le32_to_cpu(ri->i_addr[extra_size])); 63 else 64 inode->i_rdev = new_decode_dev( 65 le32_to_cpu(ri->i_addr[extra_size + 1])); 66 } 67 } 68 69 static int __written_first_block(struct f2fs_sb_info *sbi, 70 struct f2fs_inode *ri) 71 { 72 block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); 73 74 if (!__is_valid_data_blkaddr(addr)) 75 return 1; 76 if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC)) 77 return -EFAULT; 78 return 0; 79 } 80 81 static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) 82 { 83 int extra_size = get_extra_isize(inode); 84 85 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { 86 if (old_valid_dev(inode->i_rdev)) { 87 ri->i_addr[extra_size] = 88 cpu_to_le32(old_encode_dev(inode->i_rdev)); 89 ri->i_addr[extra_size + 1] = 0; 90 } else { 91 ri->i_addr[extra_size] = 0; 92 ri->i_addr[extra_size + 1] = 93 cpu_to_le32(new_encode_dev(inode->i_rdev)); 94 ri->i_addr[extra_size + 2] = 0; 95 } 96 } 97 } 98 99 static void __recover_inline_status(struct inode *inode, struct page *ipage) 100 { 101 void *inline_data = inline_data_addr(inode, ipage); 102 __le32 *start = inline_data; 103 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); 104 105 while (start < end) { 106 if (*start++) { 107 f2fs_wait_on_page_writeback(ipage, NODE, true, true); 108 109 set_inode_flag(inode, FI_DATA_EXIST); 110 set_raw_inline(inode, F2FS_INODE(ipage)); 111 set_page_dirty(ipage); 112 return; 113 } 114 } 115 return; 116 } 117 118 static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 119 { 120 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 121 122 if (!f2fs_sb_has_inode_chksum(sbi)) 123 return false; 124 125 if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR)) 126 return false; 127 128 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize), 129 i_inode_checksum)) 130 return false; 131 132 return true; 133 } 134 135 static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 136 { 137 struct f2fs_node *node = F2FS_NODE(page); 138 struct f2fs_inode *ri = &node->i; 139 __le32 ino = node->footer.ino; 140 __le32 gen = ri->i_generation; 141 __u32 chksum, chksum_seed; 142 __u32 dummy_cs = 0; 143 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); 144 unsigned int cs_size = sizeof(dummy_cs); 145 146 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, 147 sizeof(ino)); 148 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); 149 150 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); 151 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); 152 offset += cs_size; 153 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, 154 F2FS_BLKSIZE - offset); 155 return chksum; 156 } 157 158 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) 159 { 160 struct f2fs_inode *ri; 161 __u32 provided, calculated; 162 163 if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))) 164 return true; 165 166 #ifdef CONFIG_F2FS_CHECK_FS 167 if (!f2fs_enable_inode_chksum(sbi, page)) 168 #else 169 if (!f2fs_enable_inode_chksum(sbi, page) || 170 PageDirty(page) || PageWriteback(page)) 171 #endif 172 return true; 173 174 ri = &F2FS_NODE(page)->i; 175 provided = le32_to_cpu(ri->i_inode_checksum); 176 calculated = f2fs_inode_chksum(sbi, page); 177 178 if (provided != calculated) 179 f2fs_msg(sbi->sb, KERN_WARNING, 180 "checksum invalid, ino = %x, %x vs. %x", 181 ino_of_node(page), provided, calculated); 182 183 return provided == calculated; 184 } 185 186 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) 187 { 188 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 189 190 if (!f2fs_enable_inode_chksum(sbi, page)) 191 return; 192 193 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); 194 } 195 196 static bool sanity_check_inode(struct inode *inode, struct page *node_page) 197 { 198 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 199 struct f2fs_inode_info *fi = F2FS_I(inode); 200 unsigned long long iblocks; 201 202 iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks); 203 if (!iblocks) { 204 set_sbi_flag(sbi, SBI_NEED_FSCK); 205 f2fs_msg(sbi->sb, KERN_WARNING, 206 "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, " 207 "run fsck to fix.", 208 __func__, inode->i_ino, iblocks); 209 return false; 210 } 211 212 if (ino_of_node(node_page) != nid_of_node(node_page)) { 213 set_sbi_flag(sbi, SBI_NEED_FSCK); 214 f2fs_msg(sbi->sb, KERN_WARNING, 215 "%s: corrupted inode footer i_ino=%lx, ino,nid: " 216 "[%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_msg(sbi->sb, KERN_WARNING, 226 "%s: corrupted inode ino=%lx, run fsck to fix.", 227 __func__, inode->i_ino); 228 return false; 229 } 230 231 if (f2fs_has_extra_attr(inode) && 232 !f2fs_sb_has_extra_attr(sbi)) { 233 set_sbi_flag(sbi, SBI_NEED_FSCK); 234 f2fs_msg(sbi->sb, KERN_WARNING, 235 "%s: inode (ino=%lx) is with extra_attr, " 236 "but extra_attr feature is off", 237 __func__, inode->i_ino); 238 return false; 239 } 240 241 if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE || 242 fi->i_extra_isize % sizeof(__le32)) { 243 set_sbi_flag(sbi, SBI_NEED_FSCK); 244 f2fs_msg(sbi->sb, KERN_WARNING, 245 "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, " 246 "max: %zu", 247 __func__, inode->i_ino, fi->i_extra_isize, 248 F2FS_TOTAL_EXTRA_ATTR_SIZE); 249 return false; 250 } 251 252 if (f2fs_has_extra_attr(inode) && 253 f2fs_sb_has_flexible_inline_xattr(sbi) && 254 f2fs_has_inline_xattr(inode) && 255 (!fi->i_inline_xattr_size || 256 fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) { 257 set_sbi_flag(sbi, SBI_NEED_FSCK); 258 f2fs_msg(sbi->sb, KERN_WARNING, 259 "%s: inode (ino=%lx) has corrupted " 260 "i_inline_xattr_size: %d, max: %zu", 261 __func__, inode->i_ino, fi->i_inline_xattr_size, 262 MAX_INLINE_XATTR_SIZE); 263 return false; 264 } 265 266 if (F2FS_I(inode)->extent_tree) { 267 struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest; 268 269 if (ei->len && 270 (!f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC) || 271 !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1, 272 DATA_GENERIC))) { 273 set_sbi_flag(sbi, SBI_NEED_FSCK); 274 f2fs_msg(sbi->sb, KERN_WARNING, 275 "%s: inode (ino=%lx) extent info [%u, %u, %u] " 276 "is incorrect, run fsck to fix", 277 __func__, inode->i_ino, 278 ei->blk, ei->fofs, ei->len); 279 return false; 280 } 281 } 282 283 if (f2fs_has_inline_data(inode) && 284 (!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))) { 285 set_sbi_flag(sbi, SBI_NEED_FSCK); 286 f2fs_msg(sbi->sb, KERN_WARNING, 287 "%s: inode (ino=%lx, mode=%u) should not have " 288 "inline_data, run fsck to fix", 289 __func__, inode->i_ino, inode->i_mode); 290 return false; 291 } 292 293 if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) { 294 set_sbi_flag(sbi, SBI_NEED_FSCK); 295 f2fs_msg(sbi->sb, KERN_WARNING, 296 "%s: inode (ino=%lx, mode=%u) should not have " 297 "inline_dentry, run fsck to fix", 298 __func__, inode->i_ino, inode->i_mode); 299 return false; 300 } 301 302 return true; 303 } 304 305 static int do_read_inode(struct inode *inode) 306 { 307 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 308 struct f2fs_inode_info *fi = F2FS_I(inode); 309 struct page *node_page; 310 struct f2fs_inode *ri; 311 projid_t i_projid; 312 int err; 313 314 /* Check if ino is within scope */ 315 if (f2fs_check_nid_range(sbi, inode->i_ino)) 316 return -EINVAL; 317 318 node_page = f2fs_get_node_page(sbi, inode->i_ino); 319 if (IS_ERR(node_page)) 320 return PTR_ERR(node_page); 321 322 ri = F2FS_INODE(node_page); 323 324 inode->i_mode = le16_to_cpu(ri->i_mode); 325 i_uid_write(inode, le32_to_cpu(ri->i_uid)); 326 i_gid_write(inode, le32_to_cpu(ri->i_gid)); 327 set_nlink(inode, le32_to_cpu(ri->i_links)); 328 inode->i_size = le64_to_cpu(ri->i_size); 329 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); 330 331 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); 332 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); 333 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); 334 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); 335 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); 336 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); 337 inode->i_generation = le32_to_cpu(ri->i_generation); 338 if (S_ISDIR(inode->i_mode)) 339 fi->i_current_depth = le32_to_cpu(ri->i_current_depth); 340 else if (S_ISREG(inode->i_mode)) 341 fi->i_gc_failures[GC_FAILURE_PIN] = 342 le16_to_cpu(ri->i_gc_failures); 343 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); 344 fi->i_flags = le32_to_cpu(ri->i_flags); 345 fi->flags = 0; 346 fi->i_advise = ri->i_advise; 347 fi->i_pino = le32_to_cpu(ri->i_pino); 348 fi->i_dir_level = ri->i_dir_level; 349 350 if (f2fs_init_extent_tree(inode, &ri->i_ext)) 351 set_page_dirty(node_page); 352 353 get_inline_info(inode, ri); 354 355 fi->i_extra_isize = f2fs_has_extra_attr(inode) ? 356 le16_to_cpu(ri->i_extra_isize) : 0; 357 358 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 359 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); 360 } else if (f2fs_has_inline_xattr(inode) || 361 f2fs_has_inline_dentry(inode)) { 362 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 363 } else { 364 365 /* 366 * Previous inline data or directory always reserved 200 bytes 367 * in inode layout, even if inline_xattr is disabled. In order 368 * to keep inline_dentry's structure for backward compatibility, 369 * we get the space back only from inline_data. 370 */ 371 fi->i_inline_xattr_size = 0; 372 } 373 374 if (!sanity_check_inode(inode, node_page)) { 375 f2fs_put_page(node_page, 1); 376 return -EINVAL; 377 } 378 379 /* check data exist */ 380 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) 381 __recover_inline_status(inode, node_page); 382 383 /* try to recover cold bit for non-dir inode */ 384 if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) { 385 set_cold_node(node_page, false); 386 set_page_dirty(node_page); 387 } 388 389 /* get rdev by using inline_info */ 390 __get_inode_rdev(inode, ri); 391 392 if (S_ISREG(inode->i_mode)) { 393 err = __written_first_block(sbi, ri); 394 if (err < 0) { 395 f2fs_put_page(node_page, 1); 396 return err; 397 } 398 if (!err) 399 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); 400 } 401 402 if (!f2fs_need_inode_block_update(sbi, inode->i_ino)) 403 fi->last_disk_size = inode->i_size; 404 405 if (fi->i_flags & F2FS_PROJINHERIT_FL) 406 set_inode_flag(inode, FI_PROJ_INHERIT); 407 408 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) && 409 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) 410 i_projid = (projid_t)le32_to_cpu(ri->i_projid); 411 else 412 i_projid = F2FS_DEF_PROJID; 413 fi->i_projid = make_kprojid(&init_user_ns, i_projid); 414 415 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) && 416 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { 417 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime); 418 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec); 419 } 420 421 F2FS_I(inode)->i_disk_time[0] = inode->i_atime; 422 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; 423 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; 424 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; 425 f2fs_put_page(node_page, 1); 426 427 stat_inc_inline_xattr(inode); 428 stat_inc_inline_inode(inode); 429 stat_inc_inline_dir(inode); 430 431 return 0; 432 } 433 434 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) 435 { 436 struct f2fs_sb_info *sbi = F2FS_SB(sb); 437 struct inode *inode; 438 int ret = 0; 439 440 inode = iget_locked(sb, ino); 441 if (!inode) 442 return ERR_PTR(-ENOMEM); 443 444 if (!(inode->i_state & I_NEW)) { 445 trace_f2fs_iget(inode); 446 return inode; 447 } 448 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) 449 goto make_now; 450 451 ret = do_read_inode(inode); 452 if (ret) 453 goto bad_inode; 454 make_now: 455 if (ino == F2FS_NODE_INO(sbi)) { 456 inode->i_mapping->a_ops = &f2fs_node_aops; 457 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 458 } else if (ino == F2FS_META_INO(sbi)) { 459 inode->i_mapping->a_ops = &f2fs_meta_aops; 460 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 461 } else if (S_ISREG(inode->i_mode)) { 462 inode->i_op = &f2fs_file_inode_operations; 463 inode->i_fop = &f2fs_file_operations; 464 inode->i_mapping->a_ops = &f2fs_dblock_aops; 465 } else if (S_ISDIR(inode->i_mode)) { 466 inode->i_op = &f2fs_dir_inode_operations; 467 inode->i_fop = &f2fs_dir_operations; 468 inode->i_mapping->a_ops = &f2fs_dblock_aops; 469 inode_nohighmem(inode); 470 } else if (S_ISLNK(inode->i_mode)) { 471 if (file_is_encrypt(inode)) 472 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 473 else 474 inode->i_op = &f2fs_symlink_inode_operations; 475 inode_nohighmem(inode); 476 inode->i_mapping->a_ops = &f2fs_dblock_aops; 477 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 478 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 479 inode->i_op = &f2fs_special_inode_operations; 480 init_special_inode(inode, inode->i_mode, inode->i_rdev); 481 } else { 482 ret = -EIO; 483 goto bad_inode; 484 } 485 f2fs_set_inode_flags(inode); 486 unlock_new_inode(inode); 487 trace_f2fs_iget(inode); 488 return inode; 489 490 bad_inode: 491 iget_failed(inode); 492 trace_f2fs_iget_exit(inode, ret); 493 return ERR_PTR(ret); 494 } 495 496 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) 497 { 498 struct inode *inode; 499 retry: 500 inode = f2fs_iget(sb, ino); 501 if (IS_ERR(inode)) { 502 if (PTR_ERR(inode) == -ENOMEM) { 503 congestion_wait(BLK_RW_ASYNC, HZ/50); 504 goto retry; 505 } 506 } 507 return inode; 508 } 509 510 void f2fs_update_inode(struct inode *inode, struct page *node_page) 511 { 512 struct f2fs_inode *ri; 513 struct extent_tree *et = F2FS_I(inode)->extent_tree; 514 515 f2fs_wait_on_page_writeback(node_page, NODE, true, true); 516 set_page_dirty(node_page); 517 518 f2fs_inode_synced(inode); 519 520 ri = F2FS_INODE(node_page); 521 522 ri->i_mode = cpu_to_le16(inode->i_mode); 523 ri->i_advise = F2FS_I(inode)->i_advise; 524 ri->i_uid = cpu_to_le32(i_uid_read(inode)); 525 ri->i_gid = cpu_to_le32(i_gid_read(inode)); 526 ri->i_links = cpu_to_le32(inode->i_nlink); 527 ri->i_size = cpu_to_le64(i_size_read(inode)); 528 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); 529 530 if (et) { 531 read_lock(&et->lock); 532 set_raw_extent(&et->largest, &ri->i_ext); 533 read_unlock(&et->lock); 534 } else { 535 memset(&ri->i_ext, 0, sizeof(ri->i_ext)); 536 } 537 set_raw_inline(inode, ri); 538 539 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); 540 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); 541 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); 542 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); 543 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); 544 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); 545 if (S_ISDIR(inode->i_mode)) 546 ri->i_current_depth = 547 cpu_to_le32(F2FS_I(inode)->i_current_depth); 548 else if (S_ISREG(inode->i_mode)) 549 ri->i_gc_failures = 550 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]); 551 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); 552 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); 553 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); 554 ri->i_generation = cpu_to_le32(inode->i_generation); 555 ri->i_dir_level = F2FS_I(inode)->i_dir_level; 556 557 if (f2fs_has_extra_attr(inode)) { 558 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); 559 560 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode))) 561 ri->i_inline_xattr_size = 562 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); 563 564 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) && 565 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 566 i_projid)) { 567 projid_t i_projid; 568 569 i_projid = from_kprojid(&init_user_ns, 570 F2FS_I(inode)->i_projid); 571 ri->i_projid = cpu_to_le32(i_projid); 572 } 573 574 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && 575 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 576 i_crtime)) { 577 ri->i_crtime = 578 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec); 579 ri->i_crtime_nsec = 580 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec); 581 } 582 } 583 584 __set_inode_rdev(inode, ri); 585 586 /* deleted inode */ 587 if (inode->i_nlink == 0) 588 clear_inline_node(node_page); 589 590 F2FS_I(inode)->i_disk_time[0] = inode->i_atime; 591 F2FS_I(inode)->i_disk_time[1] = inode->i_ctime; 592 F2FS_I(inode)->i_disk_time[2] = inode->i_mtime; 593 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; 594 595 #ifdef CONFIG_F2FS_CHECK_FS 596 f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page); 597 #endif 598 } 599 600 void f2fs_update_inode_page(struct inode *inode) 601 { 602 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 603 struct page *node_page; 604 retry: 605 node_page = f2fs_get_node_page(sbi, inode->i_ino); 606 if (IS_ERR(node_page)) { 607 int err = PTR_ERR(node_page); 608 if (err == -ENOMEM) { 609 cond_resched(); 610 goto retry; 611 } else if (err != -ENOENT) { 612 f2fs_stop_checkpoint(sbi, false); 613 } 614 return; 615 } 616 f2fs_update_inode(inode, node_page); 617 f2fs_put_page(node_page, 1); 618 } 619 620 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) 621 { 622 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 623 624 if (inode->i_ino == F2FS_NODE_INO(sbi) || 625 inode->i_ino == F2FS_META_INO(sbi)) 626 return 0; 627 628 if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) 629 return 0; 630 631 if (f2fs_is_checkpoint_ready(sbi)) 632 return -ENOSPC; 633 634 /* 635 * We need to balance fs here to prevent from producing dirty node pages 636 * during the urgent cleaning time when runing out of free sections. 637 */ 638 f2fs_update_inode_page(inode); 639 if (wbc && wbc->nr_to_write) 640 f2fs_balance_fs(sbi, true); 641 return 0; 642 } 643 644 /* 645 * Called at the last iput() if i_nlink is zero 646 */ 647 void f2fs_evict_inode(struct inode *inode) 648 { 649 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 650 nid_t xnid = F2FS_I(inode)->i_xattr_nid; 651 int err = 0; 652 653 /* some remained atomic pages should discarded */ 654 if (f2fs_is_atomic_file(inode)) 655 f2fs_drop_inmem_pages(inode); 656 657 trace_f2fs_evict_inode(inode); 658 truncate_inode_pages_final(&inode->i_data); 659 660 if (inode->i_ino == F2FS_NODE_INO(sbi) || 661 inode->i_ino == F2FS_META_INO(sbi)) 662 goto out_clear; 663 664 f2fs_bug_on(sbi, get_dirty_pages(inode)); 665 f2fs_remove_dirty_inode(inode); 666 667 f2fs_destroy_extent_tree(inode); 668 669 if (inode->i_nlink || is_bad_inode(inode)) 670 goto no_delete; 671 672 err = dquot_initialize(inode); 673 if (err) { 674 err = 0; 675 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 676 } 677 678 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO); 679 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); 680 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); 681 682 sb_start_intwrite(inode->i_sb); 683 set_inode_flag(inode, FI_NO_ALLOC); 684 i_size_write(inode, 0); 685 retry: 686 if (F2FS_HAS_BLOCKS(inode)) 687 err = f2fs_truncate(inode); 688 689 if (time_to_inject(sbi, FAULT_EVICT_INODE)) { 690 f2fs_show_injection_info(FAULT_EVICT_INODE); 691 err = -EIO; 692 } 693 694 if (!err) { 695 f2fs_lock_op(sbi); 696 err = f2fs_remove_inode_page(inode); 697 f2fs_unlock_op(sbi); 698 if (err == -ENOENT) 699 err = 0; 700 } 701 702 /* give more chances, if ENOMEM case */ 703 if (err == -ENOMEM) { 704 err = 0; 705 goto retry; 706 } 707 708 if (err) { 709 f2fs_update_inode_page(inode); 710 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); 711 } 712 sb_end_intwrite(inode->i_sb); 713 no_delete: 714 dquot_drop(inode); 715 716 stat_dec_inline_xattr(inode); 717 stat_dec_inline_dir(inode); 718 stat_dec_inline_inode(inode); 719 720 if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG) && 721 !is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 722 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); 723 else 724 f2fs_inode_synced(inode); 725 726 /* ino == 0, if f2fs_new_inode() was failed t*/ 727 if (inode->i_ino) 728 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, 729 inode->i_ino); 730 if (xnid) 731 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); 732 if (inode->i_nlink) { 733 if (is_inode_flag_set(inode, FI_APPEND_WRITE)) 734 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO); 735 if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) 736 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO); 737 } 738 if (is_inode_flag_set(inode, FI_FREE_NID)) { 739 f2fs_alloc_nid_failed(sbi, inode->i_ino); 740 clear_inode_flag(inode, FI_FREE_NID); 741 } else { 742 /* 743 * If xattr nid is corrupted, we can reach out error condition, 744 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). 745 * In that case, f2fs_check_nid_range() is enough to give a clue. 746 */ 747 } 748 out_clear: 749 fscrypt_put_encryption_info(inode); 750 clear_inode(inode); 751 } 752 753 /* caller should call f2fs_lock_op() */ 754 void f2fs_handle_failed_inode(struct inode *inode) 755 { 756 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 757 struct node_info ni; 758 int err; 759 760 /* 761 * clear nlink of inode in order to release resource of inode 762 * immediately. 763 */ 764 clear_nlink(inode); 765 766 /* 767 * we must call this to avoid inode being remained as dirty, resulting 768 * in a panic when flushing dirty inodes in gdirty_list. 769 */ 770 f2fs_update_inode_page(inode); 771 f2fs_inode_synced(inode); 772 773 /* don't make bad inode, since it becomes a regular file. */ 774 unlock_new_inode(inode); 775 776 /* 777 * Note: we should add inode to orphan list before f2fs_unlock_op() 778 * so we can prevent losing this orphan when encoutering checkpoint 779 * and following suddenly power-off. 780 */ 781 err = f2fs_get_node_info(sbi, inode->i_ino, &ni); 782 if (err) { 783 set_sbi_flag(sbi, SBI_NEED_FSCK); 784 f2fs_msg(sbi->sb, KERN_WARNING, 785 "May loss orphan inode, run fsck to fix."); 786 goto out; 787 } 788 789 if (ni.blk_addr != NULL_ADDR) { 790 err = f2fs_acquire_orphan_inode(sbi); 791 if (err) { 792 set_sbi_flag(sbi, SBI_NEED_FSCK); 793 f2fs_msg(sbi->sb, KERN_WARNING, 794 "Too many orphan inodes, run fsck to fix."); 795 } else { 796 f2fs_add_orphan_inode(inode); 797 } 798 f2fs_alloc_nid_done(sbi, inode->i_ino); 799 } else { 800 set_inode_flag(inode, FI_FREE_NID); 801 } 802 803 out: 804 f2fs_unlock_op(sbi); 805 806 /* iput will drop the inode object */ 807 iput(inode); 808 } 809