1 files changed, 18 insertions, 0 deletions
diff --git a/utils.c b/utils.c
index 4b8a8264..eede72f4 100644
--- a/utils.c
+++ b/utils.c
@@ -2354,6 +2354,24 @@ int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile,
 	return 0;
 }
 
+int group_profile_max_safe_loss(u64 flags)
+{
+	switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
+	case 0: /* single */
+	case BTRFS_BLOCK_GROUP_DUP:
+	case BTRFS_BLOCK_GROUP_RAID0:
+		return 0;
+	case BTRFS_BLOCK_GROUP_RAID1:
+	case BTRFS_BLOCK_GROUP_RAID5:
+	case BTRFS_BLOCK_GROUP_RAID10:
+		return 1;
+	case BTRFS_BLOCK_GROUP_RAID6:
+		return 2;
+	default:
+		return -1;
+	}
+}
+
 /* Check if disk is suitable for btrfs
  * returns:
  *  1: something is wrong, estr provides the error