struct inode *gfs2_aspace_get(struct gfs2_sbd *sdp);
void gfs2_aspace_put(struct inode *aspace);
-void gfs2_meta_inval(struct gfs2_glock *gl);
void gfs2_meta_sync(struct gfs2_glock *gl);
struct buffer_head *gfs2_meta_new(struct gfs2_glock *gl, u64 blkno);