1 /* 2 * fs/f2fs/inode.c 3 * 4 * Copyright (c) 2012 Samsung Electronics Co., Ltd. 5 * http://www.samsung.com/ 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 #include <linux/fs.h> 12 #include <linux/f2fs_fs.h> 13 #include <linux/buffer_head.h> 14 #include <linux/backing-dev.h> 15 #include <linux/writeback.h> 16 17 #include "f2fs.h" 18 #include "node.h" 19 #include "segment.h" 20 21 #include <trace/events/f2fs.h> 22 23 void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync) 24 { 25 if (is_inode_flag_set(inode, FI_NEW_INODE)) 26 return; 27 28 if (f2fs_inode_dirtied(inode, sync)) 29 return; 30 31 mark_inode_dirty_sync(inode); 32 } 33 34 void f2fs_set_inode_flags(struct inode *inode) 35 { 36 unsigned int flags = F2FS_I(inode)->i_flags; 37 unsigned int new_fl = 0; 38 39 if (flags & F2FS_SYNC_FL) 40 new_fl |= S_SYNC; 41 if (flags & F2FS_APPEND_FL) 42 new_fl |= S_APPEND; 43 if (flags & F2FS_IMMUTABLE_FL) 44 new_fl |= S_IMMUTABLE; 45 if (flags & F2FS_NOATIME_FL) 46 new_fl |= S_NOATIME; 47 if (flags & F2FS_DIRSYNC_FL) 48 new_fl |= S_DIRSYNC; 49 if (f2fs_encrypted_inode(inode)) 50 new_fl |= S_ENCRYPTED; 51 inode_set_flags(inode, new_fl, 52 S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC| 53 S_ENCRYPTED); 54 } 55 56 static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri) 57 { 58 int extra_size = get_extra_isize(inode); 59 60 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 61 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 62 if (ri->i_addr[extra_size]) 63 inode->i_rdev = old_decode_dev( 64 le32_to_cpu(ri->i_addr[extra_size])); 65 else 66 inode->i_rdev = new_decode_dev( 67 le32_to_cpu(ri->i_addr[extra_size + 1])); 68 } 69 } 70 71 static bool __written_first_block(struct f2fs_inode *ri) 72 { 73 block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]); 74 75 if (is_valid_blkaddr(addr)) 76 return true; 77 return false; 78 } 79 80 static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri) 81 { 82 int extra_size = get_extra_isize(inode); 83 84 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) { 85 if (old_valid_dev(inode->i_rdev)) { 86 ri->i_addr[extra_size] = 87 cpu_to_le32(old_encode_dev(inode->i_rdev)); 88 ri->i_addr[extra_size + 1] = 0; 89 } else { 90 ri->i_addr[extra_size] = 0; 91 ri->i_addr[extra_size + 1] = 92 cpu_to_le32(new_encode_dev(inode->i_rdev)); 93 ri->i_addr[extra_size + 2] = 0; 94 } 95 } 96 } 97 98 static void __recover_inline_status(struct inode *inode, struct page *ipage) 99 { 100 void *inline_data = inline_data_addr(inode, ipage); 101 __le32 *start = inline_data; 102 __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32); 103 104 while (start < end) { 105 if (*start++) { 106 f2fs_wait_on_page_writeback(ipage, NODE, true); 107 108 set_inode_flag(inode, FI_DATA_EXIST); 109 set_raw_inline(inode, F2FS_INODE(ipage)); 110 set_page_dirty(ipage); 111 return; 112 } 113 } 114 return; 115 } 116 117 static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 118 { 119 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 120 121 if (!f2fs_sb_has_inode_chksum(sbi->sb)) 122 return false; 123 124 if (!RAW_IS_INODE(F2FS_NODE(page)) || !(ri->i_inline & F2FS_EXTRA_ATTR)) 125 return false; 126 127 if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize), 128 i_inode_checksum)) 129 return false; 130 131 return true; 132 } 133 134 static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page) 135 { 136 struct f2fs_node *node = F2FS_NODE(page); 137 struct f2fs_inode *ri = &node->i; 138 __le32 ino = node->footer.ino; 139 __le32 gen = ri->i_generation; 140 __u32 chksum, chksum_seed; 141 __u32 dummy_cs = 0; 142 unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum); 143 unsigned int cs_size = sizeof(dummy_cs); 144 145 chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino, 146 sizeof(ino)); 147 chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen)); 148 149 chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset); 150 chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size); 151 offset += cs_size; 152 chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset, 153 F2FS_BLKSIZE - offset); 154 return chksum; 155 } 156 157 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page) 158 { 159 struct f2fs_inode *ri; 160 __u32 provided, calculated; 161 162 if (!f2fs_enable_inode_chksum(sbi, page) || 163 PageDirty(page) || PageWriteback(page)) 164 return true; 165 166 ri = &F2FS_NODE(page)->i; 167 provided = le32_to_cpu(ri->i_inode_checksum); 168 calculated = f2fs_inode_chksum(sbi, page); 169 170 if (provided != calculated) 171 f2fs_msg(sbi->sb, KERN_WARNING, 172 "checksum invalid, ino = %x, %x vs. %x", 173 ino_of_node(page), provided, calculated); 174 175 return provided == calculated; 176 } 177 178 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page) 179 { 180 struct f2fs_inode *ri = &F2FS_NODE(page)->i; 181 182 if (!f2fs_enable_inode_chksum(sbi, page)) 183 return; 184 185 ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page)); 186 } 187 188 static bool sanity_check_inode(struct inode *inode) 189 { 190 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 191 192 if (f2fs_sb_has_flexible_inline_xattr(sbi->sb) 193 && !f2fs_has_extra_attr(inode)) { 194 set_sbi_flag(sbi, SBI_NEED_FSCK); 195 f2fs_msg(sbi->sb, KERN_WARNING, 196 "%s: corrupted inode ino=%lx, run fsck to fix.", 197 __func__, inode->i_ino); 198 return false; 199 } 200 return true; 201 } 202 203 static int do_read_inode(struct inode *inode) 204 { 205 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 206 struct f2fs_inode_info *fi = F2FS_I(inode); 207 struct page *node_page; 208 struct f2fs_inode *ri; 209 projid_t i_projid; 210 211 /* Check if ino is within scope */ 212 if (f2fs_check_nid_range(sbi, inode->i_ino)) 213 return -EINVAL; 214 215 node_page = f2fs_get_node_page(sbi, inode->i_ino); 216 if (IS_ERR(node_page)) 217 return PTR_ERR(node_page); 218 219 ri = F2FS_INODE(node_page); 220 221 inode->i_mode = le16_to_cpu(ri->i_mode); 222 i_uid_write(inode, le32_to_cpu(ri->i_uid)); 223 i_gid_write(inode, le32_to_cpu(ri->i_gid)); 224 set_nlink(inode, le32_to_cpu(ri->i_links)); 225 inode->i_size = le64_to_cpu(ri->i_size); 226 inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1); 227 228 inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime); 229 inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime); 230 inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime); 231 inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec); 232 inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec); 233 inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec); 234 inode->i_generation = le32_to_cpu(ri->i_generation); 235 if (S_ISDIR(inode->i_mode)) 236 fi->i_current_depth = le32_to_cpu(ri->i_current_depth); 237 else if (S_ISREG(inode->i_mode)) 238 fi->i_gc_failures[GC_FAILURE_PIN] = 239 le16_to_cpu(ri->i_gc_failures); 240 fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid); 241 fi->i_flags = le32_to_cpu(ri->i_flags); 242 fi->flags = 0; 243 fi->i_advise = ri->i_advise; 244 fi->i_pino = le32_to_cpu(ri->i_pino); 245 fi->i_dir_level = ri->i_dir_level; 246 247 if (f2fs_init_extent_tree(inode, &ri->i_ext)) 248 set_page_dirty(node_page); 249 250 get_inline_info(inode, ri); 251 252 fi->i_extra_isize = f2fs_has_extra_attr(inode) ? 253 le16_to_cpu(ri->i_extra_isize) : 0; 254 255 if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) { 256 fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size); 257 } else if (f2fs_has_inline_xattr(inode) || 258 f2fs_has_inline_dentry(inode)) { 259 fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 260 } else { 261 262 /* 263 * Previous inline data or directory always reserved 200 bytes 264 * in inode layout, even if inline_xattr is disabled. In order 265 * to keep inline_dentry's structure for backward compatibility, 266 * we get the space back only from inline_data. 267 */ 268 fi->i_inline_xattr_size = 0; 269 } 270 271 /* check data exist */ 272 if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode)) 273 __recover_inline_status(inode, node_page); 274 275 /* get rdev by using inline_info */ 276 __get_inode_rdev(inode, ri); 277 278 if (__written_first_block(ri)) 279 set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN); 280 281 if (!f2fs_need_inode_block_update(sbi, inode->i_ino)) 282 fi->last_disk_size = inode->i_size; 283 284 if (fi->i_flags & F2FS_PROJINHERIT_FL) 285 set_inode_flag(inode, FI_PROJ_INHERIT); 286 287 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi->sb) && 288 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) 289 i_projid = (projid_t)le32_to_cpu(ri->i_projid); 290 else 291 i_projid = F2FS_DEF_PROJID; 292 fi->i_projid = make_kprojid(&init_user_ns, i_projid); 293 294 if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi->sb) && 295 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { 296 fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime); 297 fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec); 298 } 299 300 F2FS_I(inode)->i_disk_time[0] = timespec64_to_timespec(inode->i_atime); 301 F2FS_I(inode)->i_disk_time[1] = timespec64_to_timespec(inode->i_ctime); 302 F2FS_I(inode)->i_disk_time[2] = timespec64_to_timespec(inode->i_mtime); 303 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; 304 f2fs_put_page(node_page, 1); 305 306 stat_inc_inline_xattr(inode); 307 stat_inc_inline_inode(inode); 308 stat_inc_inline_dir(inode); 309 310 return 0; 311 } 312 313 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) 314 { 315 struct f2fs_sb_info *sbi = F2FS_SB(sb); 316 struct inode *inode; 317 int ret = 0; 318 319 inode = iget_locked(sb, ino); 320 if (!inode) 321 return ERR_PTR(-ENOMEM); 322 323 if (!(inode->i_state & I_NEW)) { 324 trace_f2fs_iget(inode); 325 return inode; 326 } 327 if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi)) 328 goto make_now; 329 330 ret = do_read_inode(inode); 331 if (ret) 332 goto bad_inode; 333 if (!sanity_check_inode(inode)) { 334 ret = -EINVAL; 335 goto bad_inode; 336 } 337 make_now: 338 if (ino == F2FS_NODE_INO(sbi)) { 339 inode->i_mapping->a_ops = &f2fs_node_aops; 340 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 341 } else if (ino == F2FS_META_INO(sbi)) { 342 inode->i_mapping->a_ops = &f2fs_meta_aops; 343 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 344 } else if (S_ISREG(inode->i_mode)) { 345 inode->i_op = &f2fs_file_inode_operations; 346 inode->i_fop = &f2fs_file_operations; 347 inode->i_mapping->a_ops = &f2fs_dblock_aops; 348 } else if (S_ISDIR(inode->i_mode)) { 349 inode->i_op = &f2fs_dir_inode_operations; 350 inode->i_fop = &f2fs_dir_operations; 351 inode->i_mapping->a_ops = &f2fs_dblock_aops; 352 inode_nohighmem(inode); 353 } else if (S_ISLNK(inode->i_mode)) { 354 if (f2fs_encrypted_inode(inode)) 355 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 356 else 357 inode->i_op = &f2fs_symlink_inode_operations; 358 inode_nohighmem(inode); 359 inode->i_mapping->a_ops = &f2fs_dblock_aops; 360 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || 361 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { 362 inode->i_op = &f2fs_special_inode_operations; 363 init_special_inode(inode, inode->i_mode, inode->i_rdev); 364 } else { 365 ret = -EIO; 366 goto bad_inode; 367 } 368 f2fs_set_inode_flags(inode); 369 unlock_new_inode(inode); 370 trace_f2fs_iget(inode); 371 return inode; 372 373 bad_inode: 374 iget_failed(inode); 375 trace_f2fs_iget_exit(inode, ret); 376 return ERR_PTR(ret); 377 } 378 379 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) 380 { 381 struct inode *inode; 382 retry: 383 inode = f2fs_iget(sb, ino); 384 if (IS_ERR(inode)) { 385 if (PTR_ERR(inode) == -ENOMEM) { 386 congestion_wait(BLK_RW_ASYNC, HZ/50); 387 goto retry; 388 } 389 } 390 return inode; 391 } 392 393 void f2fs_update_inode(struct inode *inode, struct page *node_page) 394 { 395 struct f2fs_inode *ri; 396 struct extent_tree *et = F2FS_I(inode)->extent_tree; 397 398 f2fs_wait_on_page_writeback(node_page, NODE, true); 399 set_page_dirty(node_page); 400 401 f2fs_inode_synced(inode); 402 403 ri = F2FS_INODE(node_page); 404 405 ri->i_mode = cpu_to_le16(inode->i_mode); 406 ri->i_advise = F2FS_I(inode)->i_advise; 407 ri->i_uid = cpu_to_le32(i_uid_read(inode)); 408 ri->i_gid = cpu_to_le32(i_gid_read(inode)); 409 ri->i_links = cpu_to_le32(inode->i_nlink); 410 ri->i_size = cpu_to_le64(i_size_read(inode)); 411 ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1); 412 413 if (et) { 414 read_lock(&et->lock); 415 set_raw_extent(&et->largest, &ri->i_ext); 416 read_unlock(&et->lock); 417 } else { 418 memset(&ri->i_ext, 0, sizeof(ri->i_ext)); 419 } 420 set_raw_inline(inode, ri); 421 422 ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec); 423 ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); 424 ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec); 425 ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); 426 ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); 427 ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); 428 if (S_ISDIR(inode->i_mode)) 429 ri->i_current_depth = 430 cpu_to_le32(F2FS_I(inode)->i_current_depth); 431 else if (S_ISREG(inode->i_mode)) 432 ri->i_gc_failures = 433 cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]); 434 ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid); 435 ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags); 436 ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino); 437 ri->i_generation = cpu_to_le32(inode->i_generation); 438 ri->i_dir_level = F2FS_I(inode)->i_dir_level; 439 440 if (f2fs_has_extra_attr(inode)) { 441 ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize); 442 443 if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb)) 444 ri->i_inline_xattr_size = 445 cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size); 446 447 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) && 448 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 449 i_projid)) { 450 projid_t i_projid; 451 452 i_projid = from_kprojid(&init_user_ns, 453 F2FS_I(inode)->i_projid); 454 ri->i_projid = cpu_to_le32(i_projid); 455 } 456 457 if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)->sb) && 458 F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize, 459 i_crtime)) { 460 ri->i_crtime = 461 cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec); 462 ri->i_crtime_nsec = 463 cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec); 464 } 465 } 466 467 __set_inode_rdev(inode, ri); 468 469 /* deleted inode */ 470 if (inode->i_nlink == 0) 471 clear_inline_node(node_page); 472 473 F2FS_I(inode)->i_disk_time[0] = timespec64_to_timespec(inode->i_atime); 474 F2FS_I(inode)->i_disk_time[1] = timespec64_to_timespec(inode->i_ctime); 475 F2FS_I(inode)->i_disk_time[2] = timespec64_to_timespec(inode->i_mtime); 476 F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime; 477 } 478 479 void f2fs_update_inode_page(struct inode *inode) 480 { 481 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 482 struct page *node_page; 483 retry: 484 node_page = f2fs_get_node_page(sbi, inode->i_ino); 485 if (IS_ERR(node_page)) { 486 int err = PTR_ERR(node_page); 487 if (err == -ENOMEM) { 488 cond_resched(); 489 goto retry; 490 } else if (err != -ENOENT) { 491 f2fs_stop_checkpoint(sbi, false); 492 } 493 return; 494 } 495 f2fs_update_inode(inode, node_page); 496 f2fs_put_page(node_page, 1); 497 } 498 499 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc) 500 { 501 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 502 503 if (inode->i_ino == F2FS_NODE_INO(sbi) || 504 inode->i_ino == F2FS_META_INO(sbi)) 505 return 0; 506 507 if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) 508 return 0; 509 510 /* 511 * We need to balance fs here to prevent from producing dirty node pages 512 * during the urgent cleaning time when runing out of free sections. 513 */ 514 f2fs_update_inode_page(inode); 515 if (wbc && wbc->nr_to_write) 516 f2fs_balance_fs(sbi, true); 517 return 0; 518 } 519 520 /* 521 * Called at the last iput() if i_nlink is zero 522 */ 523 void f2fs_evict_inode(struct inode *inode) 524 { 525 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 526 nid_t xnid = F2FS_I(inode)->i_xattr_nid; 527 int err = 0; 528 529 /* some remained atomic pages should discarded */ 530 if (f2fs_is_atomic_file(inode)) 531 f2fs_drop_inmem_pages(inode); 532 533 trace_f2fs_evict_inode(inode); 534 truncate_inode_pages_final(&inode->i_data); 535 536 if (inode->i_ino == F2FS_NODE_INO(sbi) || 537 inode->i_ino == F2FS_META_INO(sbi)) 538 goto out_clear; 539 540 f2fs_bug_on(sbi, get_dirty_pages(inode)); 541 f2fs_remove_dirty_inode(inode); 542 543 f2fs_destroy_extent_tree(inode); 544 545 if (inode->i_nlink || is_bad_inode(inode)) 546 goto no_delete; 547 548 dquot_initialize(inode); 549 550 f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO); 551 f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO); 552 f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO); 553 554 sb_start_intwrite(inode->i_sb); 555 set_inode_flag(inode, FI_NO_ALLOC); 556 i_size_write(inode, 0); 557 retry: 558 if (F2FS_HAS_BLOCKS(inode)) 559 err = f2fs_truncate(inode); 560 561 #ifdef CONFIG_F2FS_FAULT_INJECTION 562 if (time_to_inject(sbi, FAULT_EVICT_INODE)) { 563 f2fs_show_injection_info(FAULT_EVICT_INODE); 564 err = -EIO; 565 } 566 #endif 567 if (!err) { 568 f2fs_lock_op(sbi); 569 err = f2fs_remove_inode_page(inode); 570 f2fs_unlock_op(sbi); 571 if (err == -ENOENT) 572 err = 0; 573 } 574 575 /* give more chances, if ENOMEM case */ 576 if (err == -ENOMEM) { 577 err = 0; 578 goto retry; 579 } 580 581 if (err) 582 f2fs_update_inode_page(inode); 583 dquot_free_inode(inode); 584 sb_end_intwrite(inode->i_sb); 585 no_delete: 586 dquot_drop(inode); 587 588 stat_dec_inline_xattr(inode); 589 stat_dec_inline_dir(inode); 590 stat_dec_inline_inode(inode); 591 592 if (likely(!is_set_ckpt_flags(sbi, CP_ERROR_FLAG))) 593 f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE)); 594 else 595 f2fs_inode_synced(inode); 596 597 /* ino == 0, if f2fs_new_inode() was failed t*/ 598 if (inode->i_ino) 599 invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, 600 inode->i_ino); 601 if (xnid) 602 invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid); 603 if (inode->i_nlink) { 604 if (is_inode_flag_set(inode, FI_APPEND_WRITE)) 605 f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO); 606 if (is_inode_flag_set(inode, FI_UPDATE_WRITE)) 607 f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO); 608 } 609 if (is_inode_flag_set(inode, FI_FREE_NID)) { 610 f2fs_alloc_nid_failed(sbi, inode->i_ino); 611 clear_inode_flag(inode, FI_FREE_NID); 612 } else { 613 /* 614 * If xattr nid is corrupted, we can reach out error condition, 615 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)). 616 * In that case, f2fs_check_nid_range() is enough to give a clue. 617 */ 618 } 619 out_clear: 620 fscrypt_put_encryption_info(inode); 621 clear_inode(inode); 622 } 623 624 /* caller should call f2fs_lock_op() */ 625 void f2fs_handle_failed_inode(struct inode *inode) 626 { 627 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 628 struct node_info ni; 629 630 /* 631 * clear nlink of inode in order to release resource of inode 632 * immediately. 633 */ 634 clear_nlink(inode); 635 636 /* 637 * we must call this to avoid inode being remained as dirty, resulting 638 * in a panic when flushing dirty inodes in gdirty_list. 639 */ 640 f2fs_update_inode_page(inode); 641 f2fs_inode_synced(inode); 642 643 /* don't make bad inode, since it becomes a regular file. */ 644 unlock_new_inode(inode); 645 646 /* 647 * Note: we should add inode to orphan list before f2fs_unlock_op() 648 * so we can prevent losing this orphan when encoutering checkpoint 649 * and following suddenly power-off. 650 */ 651 f2fs_get_node_info(sbi, inode->i_ino, &ni); 652 653 if (ni.blk_addr != NULL_ADDR) { 654 int err = f2fs_acquire_orphan_inode(sbi); 655 if (err) { 656 set_sbi_flag(sbi, SBI_NEED_FSCK); 657 f2fs_msg(sbi->sb, KERN_WARNING, 658 "Too many orphan inodes, run fsck to fix."); 659 } else { 660 f2fs_add_orphan_inode(inode); 661 } 662 f2fs_alloc_nid_done(sbi, inode->i_ino); 663 } else { 664 set_inode_flag(inode, FI_FREE_NID); 665 } 666 667 f2fs_unlock_op(sbi); 668 669 /* iput will drop the inode object */ 670 iput(inode); 671 } 672