Lines Matching refs:inode
23 static int ext4_get_inline_size(struct inode *inode)
25 if (EXT4_I(inode)->i_inline_off)
26 return EXT4_I(inode)->i_inline_size;
31 static int get_max_inline_xattr_value_size(struct inode *inode,
40 if (!EXT4_INODE_HAS_XATTR_SPACE(inode))
43 min_offs = EXT4_SB(inode->i_sb)->s_inode_size -
45 EXT4_I(inode)->i_extra_isize -
49 * We need to subtract another sizeof(__u32) since an in-inode xattr
53 if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
59 header = IHDR(inode, raw_inode);
61 end = (void *)raw_inode + EXT4_SB(inode->i_sb)->s_inode_size;
68 EXT4_ERROR_INODE(inode,
69 "corrupt xattr in inline inode");
82 if (EXT4_I(inode)->i_inline_off) {
84 ((void *)raw_inode + EXT4_I(inode)->i_inline_off);
102 * Get the maximum size we now can store in an inode.
106 int ext4_get_max_inline_size(struct inode *inode)
111 if (EXT4_I(inode)->i_extra_isize == 0)
114 error = ext4_get_inode_loc(inode, &iloc);
116 ext4_error_inode_err(inode, __func__, __LINE__, 0, -error,
117 "can't get inode location %lu",
118 inode->i_ino);
122 down_read(&EXT4_I(inode)->xattr_sem);
123 max_inline_size = get_max_inline_xattr_value_size(inode, &iloc);
124 up_read(&EXT4_I(inode)->xattr_sem);
137 * the new inode has been unlocked
139 int ext4_find_inline_data_nolock(struct inode *inode)
150 if (EXT4_I(inode)->i_extra_isize == 0)
153 error = ext4_get_inode_loc(inode, &is.iloc);
157 error = ext4_xattr_ibody_find(inode, &i, &is);
163 EXT4_ERROR_INODE(inode, "inline data xattr refers "
164 "to an external xattr inode");
168 EXT4_I(inode)->i_inline_off = (u16)((void *)is.s.here -
170 EXT4_I(inode)->i_inline_size = EXT4_MIN_INLINE_DATA_SIZE +
178 static int ext4_read_inline_data(struct inode *inode, void *buffer,
190 BUG_ON(len > EXT4_I(inode)->i_inline_size);
203 header = IHDR(inode, raw_inode);
205 EXT4_I(inode)->i_inline_off);
218 * write the buffer to the inline inode.
223 static void ext4_write_inline_data(struct inode *inode, struct ext4_iloc *iloc,
231 if (unlikely(ext4_forced_shutdown(inode->i_sb)))
234 BUG_ON(!EXT4_I(inode)->i_inline_off);
235 BUG_ON(pos + len > EXT4_I(inode)->i_inline_size);
254 header = IHDR(inode, raw_inode);
256 EXT4_I(inode)->i_inline_off);
263 struct inode *inode, unsigned len)
275 error = ext4_get_inode_loc(inode, &is.iloc);
280 error = ext4_journal_get_write_access(handle, inode->i_sb, is.iloc.bh,
297 error = ext4_xattr_ibody_find(inode, &i, &is);
303 error = ext4_xattr_ibody_set(handle, inode, &i, &is);
306 ext4_clear_inode_state(inode,
314 EXT4_I(inode)->i_inline_off = (u16)((void *)is.s.here -
316 EXT4_I(inode)->i_inline_size = len + EXT4_MIN_INLINE_DATA_SIZE;
317 ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
318 ext4_set_inode_flag(inode, EXT4_INODE_INLINE_DATA);
320 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
327 static int ext4_update_inline_data(handle_t *handle, struct inode *inode,
341 if (len <= EXT4_I(inode)->i_inline_size)
344 error = ext4_get_inode_loc(inode, &is.iloc);
348 error = ext4_xattr_ibody_find(inode, &i, &is);
361 error = ext4_xattr_ibody_get(inode, i.name_index, i.name,
367 error = ext4_journal_get_write_access(handle, inode->i_sb, is.iloc.bh,
376 error = ext4_xattr_ibody_set(handle, inode, &i, &is);
380 EXT4_I(inode)->i_inline_off = (u16)((void *)is.s.here -
382 EXT4_I(inode)->i_inline_size = EXT4_MIN_INLINE_DATA_SIZE +
384 ext4_set_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
386 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
394 static int ext4_prepare_inline_data(handle_t *handle, struct inode *inode,
398 struct ext4_inode_info *ei = EXT4_I(inode);
400 if (!ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA))
403 size = ext4_get_max_inline_size(inode);
407 ext4_write_lock_xattr(inode, &no_expand);
410 ret = ext4_update_inline_data(handle, inode, len);
412 ret = ext4_create_inline_data(handle, inode, len);
414 ext4_write_unlock_xattr(inode, &no_expand);
419 struct inode *inode)
421 struct ext4_inode_info *ei = EXT4_I(inode);
436 error = ext4_get_inode_loc(inode, &is.iloc);
440 error = ext4_xattr_ibody_find(inode, &i, &is);
445 error = ext4_journal_get_write_access(handle, inode->i_sb, is.iloc.bh,
450 error = ext4_xattr_ibody_set(handle, inode, &i, &is);
458 if (ext4_has_feature_extents(inode->i_sb)) {
459 if (S_ISDIR(inode->i_mode) ||
460 S_ISREG(inode->i_mode) || S_ISLNK(inode->i_mode)) {
461 ext4_set_inode_flag(inode, EXT4_INODE_EXTENTS);
462 ext4_ext_tree_init(handle, inode);
465 ext4_clear_inode_flag(inode, EXT4_INODE_INLINE_DATA);
468 error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
470 EXT4_I(inode)->i_inline_off = 0;
471 EXT4_I(inode)->i_inline_size = 0;
472 ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
480 static int ext4_read_inline_folio(struct inode *inode, struct folio *folio)
488 BUG_ON(!ext4_has_inline_data(inode));
491 if (!EXT4_I(inode)->i_inline_off) {
492 ext4_warning(inode->i_sb, "inode %lu doesn't have inline data.",
493 inode->i_ino);
497 ret = ext4_get_inode_loc(inode, &iloc);
501 len = min_t(size_t, ext4_get_inline_size(inode), i_size_read(inode));
504 ret = ext4_read_inline_data(inode, kaddr, len, &iloc);
515 int ext4_readpage_inline(struct inode *inode, struct folio *folio)
519 down_read(&EXT4_I(inode)->xattr_sem);
520 if (!ext4_has_inline_data(inode)) {
521 up_read(&EXT4_I(inode)->xattr_sem);
530 ret = ext4_read_inline_folio(inode, folio);
536 up_read(&EXT4_I(inode)->xattr_sem);
543 struct inode *inode)
552 if (!ext4_has_inline_data(inode)) {
557 ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
561 needed_blocks = ext4_writepage_trans_blocks(inode);
563 ret = ext4_get_inode_loc(inode, &iloc);
568 handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE, needed_blocks);
584 ext4_write_lock_xattr(inode, &no_expand);
587 if (!ext4_has_inline_data(inode)) {
593 to = ext4_get_inline_size(inode);
595 ret = ext4_read_inline_folio(inode, folio);
600 ret = ext4_destroy_inline_data_nolock(handle, inode);
604 if (ext4_should_dioread_nolock(inode)) {
610 if (!ret && ext4_should_journal_data(inode)) {
611 ret = ext4_walk_page_buffers(handle, inode,
620 ext4_orphan_add(handle, inode);
621 ext4_write_unlock_xattr(inode, &no_expand);
625 ext4_truncate_failed_write(inode);
627 * If truncate failed early the inode might
629 * make sure the inode is removed from the
632 if (inode->i_nlink)
633 ext4_orphan_del(NULL, inode);
636 if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
648 ext4_write_unlock_xattr(inode, &no_expand);
656 * Try to write data in the inode.
657 * If the inode has inline data, check whether the new write can be
658 * in the inode also. If not, create the page the handle, move the data
662 struct inode *inode,
671 if (pos + len > ext4_get_max_inline_size(inode))
674 ret = ext4_get_inode_loc(inode, &iloc);
679 * The possible write could happen in the inode,
680 * so try to reserve the space in inode first.
682 handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
689 ret = ext4_prepare_inline_data(handle, inode, pos + len);
693 /* We don't have space in inline inode, so convert it to extent. */
700 ret = ext4_journal_get_write_access(handle, inode->i_sb, iloc.bh,
713 down_read(&EXT4_I(inode)->xattr_sem);
714 if (!ext4_has_inline_data(inode)) {
722 ret = ext4_read_inline_folio(inode, folio);
733 up_read(&EXT4_I(inode)->xattr_sem);
740 return ext4_convert_inline_data_to_extent(mapping, inode);
743 int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
756 ret = ext4_get_inode_loc(inode, &iloc);
760 ext4_std_error(inode->i_sb, ret);
763 ext4_write_lock_xattr(inode, &no_expand);
764 BUG_ON(!ext4_has_inline_data(inode));
771 (void) ext4_find_inline_data_nolock(inode);
774 ext4_write_inline_data(inode, &iloc, kaddr, pos, copied);
780 ext4_write_unlock_xattr(inode, &no_expand);
788 ext4_update_inode_size(inode, pos + copied);
794 * Don't mark the inode dirty under folio lock. First, it unnecessarily
800 mark_inode_dirty(inode);
806 if (pos + len > inode->i_size && ext4_can_truncate(inode))
807 ext4_orphan_add(handle, inode);
812 if (pos + len > inode->i_size) {
813 ext4_truncate_failed_write(inode);
815 * If truncate failed early the inode might still be
816 * on the orphan list; we need to make sure the inode
819 if (inode->i_nlink)
820 ext4_orphan_del(NULL, inode);
828 * 1. The inode is created and the first write exceeds inline size. We can
829 * clear the inode state safely.
830 * 2. The inode has inline data, then we need to read the data, make it
835 struct inode *inode,
846 down_read(&EXT4_I(inode)->xattr_sem);
847 if (!ext4_has_inline_data(inode)) {
848 ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
852 inline_size = ext4_get_inline_size(inode);
855 ret = ext4_read_inline_folio(inode, folio);
863 up_read(&EXT4_I(inode)->xattr_sem);
866 ext4_truncate_failed_write(inode);
872 ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
876 up_read(&EXT4_I(inode)->xattr_sem);
886 * If the data can be written into the inode, we just read
893 struct inode *inode,
904 ret = ext4_get_inode_loc(inode, &iloc);
909 handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
915 ret = ext4_prepare_inline_data(handle, inode, pos + len);
922 inode,
925 ext4_should_retry_alloc(inode->i_sb, &retries))
941 down_read(&EXT4_I(inode)->xattr_sem);
942 if (!ext4_has_inline_data(inode)) {
948 ret = ext4_read_inline_folio(inode, folio);
952 ret = ext4_journal_get_write_access(handle, inode->i_sb, iloc.bh,
957 up_read(&EXT4_I(inode)->xattr_sem);
962 up_read(&EXT4_I(inode)->xattr_sem);
973 void ext4_show_inline_dir(struct inode *dir, struct buffer_head *bh,
981 trace_printk("inode %lu\n", dir->i_ino);
987 de->name_len, le32_to_cpu(de->inode));
1007 struct inode *dir,
1008 struct inode *inode,
1015 err = ext4_find_dest_de(dir, inode, iloc->bh, inline_start,
1025 ext4_insert_dentry(dir, inode, de, inline_size, fname);
1036 * recovery deletes the inode, so the worst that can
1046 static void *ext4_get_inline_xattr_pos(struct inode *inode,
1052 BUG_ON(!EXT4_I(inode)->i_inline_off);
1054 header = IHDR(inode, ext4_raw_inode(iloc));
1056 EXT4_I(inode)->i_inline_off);
1082 de->inode = 0;
1087 static int ext4_update_inline_dir(handle_t *handle, struct inode *dir,
1109 static void ext4_restore_inline_data(handle_t *handle, struct inode *inode,
1115 ret = ext4_create_inline_data(handle, inode, inline_size);
1117 ext4_msg(inode->i_sb, KERN_EMERG,
1118 "error restoring inline_data for inode -- potential data loss! (inode %lu, error %d)",
1119 inode->i_ino, ret);
1122 ext4_write_inline_data(inode, iloc, buf, 0, inline_size);
1123 ext4_set_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
1127 struct inode *inode,
1141 de = ext4_init_dot_dotdot(inode, de,
1142 inode->i_sb->s_blocksize, csum_size,
1143 le32_to_cpu(((struct ext4_dir_entry_2 *)buf)->inode), 1);
1149 if (ext4_has_metadata_csum(inode->i_sb))
1152 inode->i_size = inode->i_sb->s_blocksize;
1153 i_size_write(inode, inode->i_sb->s_blocksize);
1154 EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize;
1157 inode->i_sb->s_blocksize - csum_size);
1161 inode->i_sb->s_blocksize);
1164 err = ext4_handle_dirty_dirblock(handle, inode, dir_block);
1168 return ext4_mark_inode_dirty(handle, inode);
1172 struct inode *inode,
1181 inline_size = ext4_get_inline_size(inode);
1188 error = ext4_read_inline_data(inode, buf, inline_size, iloc);
1196 if (S_ISDIR(inode->i_mode)) {
1197 error = ext4_check_all_de(inode, iloc->bh,
1204 error = ext4_destroy_inline_data_nolock(handle, inode);
1211 error = ext4_map_blocks(handle, inode, &map, EXT4_GET_BLOCKS_CREATE);
1219 data_bh = sb_getblk(inode->i_sb, map.m_pblk);
1226 error = ext4_journal_get_create_access(handle, inode->i_sb, data_bh,
1233 memset(data_bh->b_data, 0, inode->i_sb->s_blocksize);
1235 if (!S_ISDIR(inode->i_mode)) {
1240 inode, data_bh);
1242 error = ext4_finish_convert_inline_dir(handle, inode, data_bh,
1248 ext4_restore_inline_data(handle, inode, iloc, buf, inline_size);
1262 struct inode *dir, struct inode *inode)
1280 ret = ext4_add_dirent_to_inline(handle, fname, dir, inode, &iloc,
1302 inode, &iloc, inline_start,
1331 struct inode *dir, ext4_lblk_t block,
1340 struct inode *inode = file_inode(dir_file);
1347 ret = ext4_get_inode_loc(inode, &iloc);
1351 down_read(&EXT4_I(inode)->xattr_sem);
1352 if (!ext4_has_inline_data(inode)) {
1353 up_read(&EXT4_I(inode)->xattr_sem);
1358 inline_size = ext4_get_inline_size(inode);
1362 up_read(&EXT4_I(inode)->xattr_sem);
1366 ret = ext4_read_inline_data(inode, dir_buf, inline_size, &iloc);
1367 up_read(&EXT4_I(inode)->xattr_sem);
1372 parent_ino = le32_to_cpu(((struct ext4_dir_entry_2 *)dir_buf)->inode);
1376 * only the inode number of '..' is stored, we have to handle
1380 fake.inode = cpu_to_le32(inode->i_ino);
1386 ext4_set_de_type(inode->i_sb, &fake, S_IFDIR);
1390 fake.inode = cpu_to_le32(parent_ino);
1396 ext4_set_de_type(inode->i_sb, &fake, S_IFDIR);
1402 if (ext4_check_dir_entry(inode, dir_file, de,
1420 if (de->inode == 0)
1455 struct inode *inode = file_inode(file);
1461 ret = ext4_get_inode_loc(inode, &iloc);
1465 down_read(&EXT4_I(inode)->xattr_sem);
1466 if (!ext4_has_inline_data(inode)) {
1467 up_read(&EXT4_I(inode)->xattr_sem);
1472 inline_size = ext4_get_inline_size(inode);
1476 up_read(&EXT4_I(inode)->xattr_sem);
1480 ret = ext4_read_inline_data(inode, dir_buf, inline_size, &iloc);
1481 up_read(&EXT4_I(inode)->xattr_sem);
1486 sb = inode->i_sb;
1487 parent_ino = le32_to_cpu(((struct ext4_dir_entry_2 *)dir_buf)->inode);
1508 if (!inode_eq_iversion(inode, file->f_version)) {
1540 file->f_version = inode_query_iversion(inode);
1545 if (!dir_emit(ctx, ".", 1, inode->i_ino, DT_DIR))
1560 if (ext4_check_dir_entry(inode, file, de, iloc.bh, dir_buf,
1563 if (le32_to_cpu(de->inode)) {
1565 le32_to_cpu(de->inode),
1577 void *ext4_read_inline_link(struct inode *inode)
1583 ret = ext4_get_inode_loc(inode, &iloc);
1588 inline_size = ext4_get_inline_size(inode);
1593 ret = ext4_read_inline_data(inode, link, inline_size, &iloc);
1598 nd_terminate_link(link, inode->i_size, ret);
1606 struct buffer_head *ext4_get_first_inline_block(struct inode *inode,
1612 *retval = ext4_get_inode_loc(inode, &iloc);
1626 int ext4_try_create_inline_dir(handle_t *handle, struct inode *parent,
1627 struct inode *inode)
1633 ret = ext4_get_inode_loc(inode, &iloc);
1637 ret = ext4_prepare_inline_data(handle, inode, inline_size);
1642 * For inline dir, we only save the inode information for the ".."
1646 de->inode = cpu_to_le32(parent->i_ino);
1648 de->inode = 0;
1652 set_nlink(inode, 2);
1653 inode->i_size = EXT4_I(inode)->i_disksize = inline_size;
1659 struct buffer_head *ext4_find_inline_entry(struct inode *dir,
1708 struct inode *dir,
1765 ext4_get_inline_entry(struct inode *inode,
1773 BUG_ON(offset > ext4_get_inline_size(inode));
1779 inline_pos = ext4_get_inline_xattr_pos(inode, iloc);
1781 *inline_size = ext4_get_inline_size(inode) -
1790 bool empty_inline_dir(struct inode *dir, int *has_inline_data)
1803 "error %d getting inode %lu block",
1816 if (!le32_to_cpu(de->inode)) {
1833 "inode %u, rec_len %u, name_len %d"
1835 dir->i_ino, le32_to_cpu(de->inode),
1840 if (le32_to_cpu(de->inode)) {
1853 int ext4_destroy_inline_data(handle_t *handle, struct inode *inode)
1857 ext4_write_lock_xattr(inode, &no_expand);
1858 ret = ext4_destroy_inline_data_nolock(handle, inode);
1859 ext4_write_unlock_xattr(inode, &no_expand);
1864 int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap)
1870 down_read(&EXT4_I(inode)->xattr_sem);
1871 if (!ext4_has_inline_data(inode))
1874 error = ext4_get_inode_loc(inode, &iloc);
1878 addr = (__u64)iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits;
1886 iomap->length = min_t(loff_t, ext4_get_inline_size(inode),
1887 i_size_read(inode));
1892 up_read(&EXT4_I(inode)->xattr_sem);
1896 int ext4_inline_data_truncate(struct inode *inode, int *has_inline)
1911 needed_blocks = ext4_writepage_trans_blocks(inode);
1912 handle = ext4_journal_start(inode, EXT4_HT_INODE, needed_blocks);
1916 ext4_write_lock_xattr(inode, &no_expand);
1917 if (!ext4_has_inline_data(inode)) {
1918 ext4_write_unlock_xattr(inode, &no_expand);
1924 if ((err = ext4_orphan_add(handle, inode)) != 0)
1927 if ((err = ext4_get_inode_loc(inode, &is.iloc)) != 0)
1930 down_write(&EXT4_I(inode)->i_data_sem);
1931 i_size = inode->i_size;
1932 inline_size = ext4_get_inline_size(inode);
1933 EXT4_I(inode)->i_disksize = i_size;
1942 if (!ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA))
1943 ext4_es_remove_extent(inode, 0, EXT_MAX_BLOCKS);
1947 if ((err = ext4_xattr_ibody_find(inode, &i, &is)) != 0)
1959 err = ext4_xattr_ibody_get(inode, i.name_index,
1967 err = ext4_xattr_ibody_set(handle, inode, &i, &is);
1979 EXT4_I(inode)->i_inline_size = i_size <
1985 up_write(&EXT4_I(inode)->i_data_sem);
1988 ext4_write_unlock_xattr(inode, &no_expand);
1990 if (inode->i_nlink)
1991 ext4_orphan_del(handle, inode);
1994 inode->i_mtime = inode_set_ctime_current(inode);
1995 err = ext4_mark_inode_dirty(handle, inode);
1996 if (IS_SYNC(inode))
2003 int ext4_convert_inline_data(struct inode *inode)
2009 if (!ext4_has_inline_data(inode)) {
2010 ext4_clear_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
2012 } else if (!ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) {
2019 error = filemap_flush(inode->i_mapping);
2022 if (!ext4_has_inline_data(inode))
2026 needed_blocks = ext4_writepage_trans_blocks(inode);
2029 error = ext4_get_inode_loc(inode, &iloc);
2033 handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE, needed_blocks);
2039 ext4_write_lock_xattr(inode, &no_expand);
2040 if (ext4_has_inline_data(inode))
2041 error = ext4_convert_inline_data_nolock(handle, inode, &iloc);
2042 ext4_write_unlock_xattr(inode, &no_expand);