int ocfs2_lock_allocators(struct inode *inode, struct ocfs2_dinode *di,
u32 clusters_to_add, u32 extents_to_split,
struct ocfs2_alloc_context **data_ac,
int ocfs2_lock_allocators(struct inode *inode, struct ocfs2_dinode *di,
u32 clusters_to_add, u32 extents_to_split,
struct ocfs2_alloc_context **data_ac,