2 * read_bb --- read the bad blocks inode
4 * Copyright (C) 1994 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
23 #include <sys/types.h>
29 struct read_bb_record {
30 ext2_badblocks_list bb_list;
35 * Helper function for ext2fs_read_bb_inode()
40 static int mark_bad_block(ext2_filsys fs, blk_t *block_nr,
41 e2_blkcnt_t blockcnt, blk_t ref_block,
42 int ref_offset, void *priv_data)
44 struct read_bb_record *rb = (struct read_bb_record *) priv_data;
49 if ((*block_nr < fs->super->s_first_data_block) ||
50 (*block_nr >= fs->super->s_blocks_count))
51 return 0; /* Ignore illegal blocks */
53 rb->err = ext2fs_badblocks_list_add(rb->bb_list, *block_nr);
60 * Reads the current bad blocks from the bad blocks inode.
62 errcode_t ext2fs_read_bb_inode(ext2_filsys fs, ext2_badblocks_list *bb_list)
65 struct read_bb_record rb;
66 struct ext2_inode inode;
69 EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
72 retval = ext2fs_read_inode(fs, EXT2_BAD_INO, &inode);
75 if (inode.i_blocks < 500)
76 numblocks = (inode.i_blocks /
77 (fs->blocksize / 512)) + 20;
80 retval = ext2fs_badblocks_list_create(bb_list, numblocks);
85 rb.bb_list = *bb_list;
87 retval = ext2fs_block_iterate2(fs, EXT2_BAD_INO, 0, 0,