Btrfs: add generation field to file extent (71951f35) · Commits · e / devices / android_kernel_fairphone_FP4

fs/btrfs/ctree.h

+13 −0

Original line number	Original line	Diff line number	Diff line
	@@ -192,6 +192,7 @@ struct btrfs_root_item {
	} __attribute__ ((__packed__));		} __attribute__ ((__packed__));

	struct btrfs_file_extent_item {		struct btrfs_file_extent_item {
			__le64 generation;
	/*		/*
	* disk space consumed by the extent, checksum blocks are included		* disk space consumed by the extent, checksum blocks are included
	* in these numbers		* in these numbers
	@@ -764,6 +765,18 @@ static inline void btrfs_set_file_extent_disk_blocknr(struct
	e->disk_blocknr = cpu_to_le64(val);		e->disk_blocknr = cpu_to_le64(val);
	}		}

			static inline u64 btrfs_file_extent_generation(struct btrfs_file_extent_item *e)
			{
			return le64_to_cpu(e->generation);
			}

			static inline void btrfs_set_file_extent_generation(struct
			btrfs_file_extent_item *e,
			u64 val)
			{
			e->generation = cpu_to_le64(val);
			}

	static inline u64 btrfs_file_extent_disk_num_blocks(struct		static inline u64 btrfs_file_extent_disk_num_blocks(struct
	btrfs_file_extent_item *e)		btrfs_file_extent_item *e)
	{		{

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -32,6 +32,7 @@ int btrfs_alloc_file_extent(struct btrfs_trans_handle *trans,
	btrfs_set_file_extent_disk_num_blocks(item, ins.offset);		btrfs_set_file_extent_disk_num_blocks(item, ins.offset);
	btrfs_set_file_extent_offset(item, 0);		btrfs_set_file_extent_offset(item, 0);
	btrfs_set_file_extent_num_blocks(item, ins.offset);		btrfs_set_file_extent_num_blocks(item, ins.offset);
			btrfs_set_file_extent_generation(item, trans->transid);
	mark_buffer_dirty(path.nodes[0]);		mark_buffer_dirty(path.nodes[0]);
	*result = ins.objectid;		*result = ins.objectid;
	btrfs_release_path(root, &path);		btrfs_release_path(root, &path);