diff options
| -rw-r--r-- | ext2fs/hyper.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/ext2fs/hyper.c b/ext2fs/hyper.c index 2c8c1cdf..fa7936ae 100644 --- a/ext2fs/hyper.c +++ b/ext2fs/hyper.c @@ -71,6 +71,24 @@ get_hypermetadata (void) assert ((vm_page_size % DEV_BSIZE) == 0); assert ((sblock->fs_bsize % DEV_BSIZE) == 0); assert (vm_page_size <= sblock->fs_bsize); + + /* Set these handy variables. */ + inodes_per_block = block_size / sizeof (struct ext2_inode); + + frag_size = EXT2_MIN_FRAG_SIZE << sblock->s_log_frag_size; + if (frag_size) + frags_per_block = block_size / frag_size; + else + ext2_panic("Frag size is zero!"); + + groups_count = + ((sblock->s_blocks_count - sblock->s_first_data_block + + sblock->s_blocks_per_group - 1) + / sblock->s_blocks_per_group); + + itb_per_group = sblock->inodes_per_group / inodes_per_block; + desc_per_block = block_size / sizeof (struct ext2_group_desc); + db_per_group = (groups_count + desc_per_block - 1) / desc_per_block; } /* Write the csum data. This isn't backed by a pager because it is |