obj_to_head      1665 mm/zsmalloc.c  		head = obj_to_head(page, addr + offset);
obj_to_head      2019 mm/zsmalloc.c  		head = obj_to_head(page, s_addr + pos);
obj_to_head      2037 mm/zsmalloc.c  		head = obj_to_head(page, addr);
obj_to_head      2085 mm/zsmalloc.c  		head = obj_to_head(page, addr);