2 * newdir.c --- create a new directory block
4 * Copyright (C) 1994, 1995 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
18 #if EXT2_FLAT_INCLUDES
21 #include <linux/ext2_fs.h>
31 * Create new directory block
33 errcode_t ext2fs_new_dir_block(ext2_filsys fs, ino_t dir_ino, ino_t parent_ino,
36 struct ext2_dir_entry *dir = NULL;
43 EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
45 retval = ext2fs_get_mem(fs->blocksize, (void **) &buf);
48 memset(buf, 0, fs->blocksize);
49 dir = (struct ext2_dir_entry *) buf;
50 dir->rec_len = fs->blocksize;
53 sb = (struct ext2fs_sb *) fs->super;
54 if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_FILETYPE)
55 filetype = EXT2_FT_DIR << 8;
57 * Set up entry for '.'
60 dir->name_len = 1 | filetype;
62 rec_len = dir->rec_len - EXT2_DIR_REC_LEN(1);
63 dir->rec_len = EXT2_DIR_REC_LEN(1);
66 * Set up entry for '..'
68 dir = (struct ext2_dir_entry *) (buf + dir->rec_len);
69 dir->rec_len = rec_len;
70 dir->inode = parent_ino;
71 dir->name_len = 2 | filetype;