Btrfs: Add support for duplicate blocks on a single spindle

[linux-2.6-block.git] / fs / btrfs / disk-io.c

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index ff75ad586767cbea878566f4c448440c5fe6c4a8..42522232fde4c32e70385aff6b3384ee986a1896 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -913,9 +913,11 @@ struct btrfs_root *open_ctree(struct super_block *sb,
 
        fs_info->generation = btrfs_super_generation(disk_super) + 1;
        if (btrfs_super_num_devices(disk_super) > 0) {
-               fs_info->data_alloc_profile = BTRFS_BLOCK_GROUP_RAID0;
-               fs_info->metadata_alloc_profile = BTRFS_BLOCK_GROUP_RAID1;
-               fs_info->system_alloc_profile = BTRFS_BLOCK_GROUP_RAID0;
+               fs_info->data_alloc_profile = BTRFS_BLOCK_GROUP_RAID0 |
+                       BTRFS_BLOCK_GROUP_RAID1;
+               fs_info->metadata_alloc_profile = BTRFS_BLOCK_GROUP_RAID1 |
+                       BTRFS_BLOCK_GROUP_DUP;
+               fs_info->system_alloc_profile = fs_info->metadata_alloc_profile;
        }
        mutex_unlock(&fs_info->fs_mutex);
        return tree_root;