Btrfs: Add support for duplicate blocks on a single spindle
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 4ab98d8..1885ec4 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -231,7 +231,7 @@
if (start + num > total_fs_bytes)
goto new_group;
if (!block_group_bits(cache, data)) {
- printk("block group bits don't match %Lu %Lu\n", cache->flags, data);
+ printk("block group bits don't match %Lu %d\n", cache->flags, data);
}
*start_ret = start;
return 0;
@@ -1048,7 +1048,8 @@
static void set_avail_alloc_bits(struct btrfs_fs_info *fs_info, u64 flags)
{
u64 extra_flags = flags & (BTRFS_BLOCK_GROUP_RAID0 |
- BTRFS_BLOCK_GROUP_RAID1);
+ BTRFS_BLOCK_GROUP_RAID1 |
+ BTRFS_BLOCK_GROUP_DUP);
if (extra_flags) {
if (flags & BTRFS_BLOCK_GROUP_DATA)
fs_info->avail_data_alloc_bits |= extra_flags;