0, from_head - to_head);
}
-struct inode *gfs2_aspace_get(struct gfs2_sbd *sdp);
-void gfs2_aspace_put(struct inode *aspace);
+extern const struct address_space_operations gfs2_meta_aops;
+
+static inline struct gfs2_sbd *gfs2_mapping2sbd(struct address_space *mapping)
+{
+ struct inode *inode = mapping->host;
+ if (mapping->a_ops == &gfs2_meta_aops)
+ return (((struct gfs2_glock *)mapping) - 1)->gl_sbd;
+ else
+ return inode->i_sb->s_fs_info;
+}
void gfs2_meta_sync(struct gfs2_glock *gl);