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Btrfs: Better block record keeping, real mkfs

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-03-20 20:35:03 -04:00
committed by David Woodhouse
parent 293ffd5fd3
commit 1261ec42b3
7 changed files with 134 additions and 19 deletions
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11
fs/btrfs/disk-io.c
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@@ -293,20 +293,15 @@ struct btrfs_root *open_ctree(char *filename, struct btrfs_super_block *super)
fs_info->inode_root = inode_root;
fs_info->last_inode_alloc = 0;
fs_info->last_inode_alloc_dirid = 0;
fs_info->disk_super = super;
memset(&fs_info->current_insert, 0, sizeof(fs_info->current_insert));
memset(&fs_info->last_insert, 0, sizeof(fs_info->last_insert));
ret = pread(fp, super, sizeof(struct btrfs_super_block),
BTRFS_SUPER_INFO_OFFSET);
if (ret == 0 || btrfs_super_root(super) == 0) {
printf("making new FS!\n");
ret = mkfs(fp, 0, 1024);
if (ret)
return NULL;
ret = pread(fp, super, sizeof(struct btrfs_super_block),
BTRFS_SUPER_INFO_OFFSET);
if (ret != sizeof(struct btrfs_super_block))
return NULL;
BUG();
return NULL;
}
BUG_ON(ret < 0);