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-rw-r--r--volumes.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/volumes.h b/volumes.h
index 9ff6182e..59d00b6d 100644
--- a/volumes.h
+++ b/volumes.h
@@ -135,6 +135,10 @@ struct map_lookup {
#define BTRFS_BALANCE_ARGS_CONVERT (1ULL << 8)
#define BTRFS_BALANCE_ARGS_SOFT (1ULL << 9)
+#define BTRFS_RAID5_P_STRIPE ((u64)-2)
+#define BTRFS_RAID6_Q_STRIPE ((u64)-1)
+
+
int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
struct btrfs_device *device,
u64 chunk_tree, u64 chunk_objectid,
@@ -142,10 +146,12 @@ int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
u64 num_bytes, u64 *start);
int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
u64 logical, u64 *length, u64 *type,
- struct btrfs_multi_bio **multi_ret, int mirror_num);
+ struct btrfs_multi_bio **multi_ret, int mirror_num,
+ u64 **raid_map);
int btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
u64 logical, u64 *length,
- struct btrfs_multi_bio **multi_ret, int mirror_num);
+ struct btrfs_multi_bio **multi_ret, int mirror_num,
+ u64 **raid_map_ret);
int btrfs_next_metadata(struct btrfs_mapping_tree *map_tree, u64 *logical,
u64 *size);
int btrfs_rmap_block(struct btrfs_mapping_tree *map_tree,