是否可以基于/proc/self/maps中的信息执行munmap ?

I need to be able to unmap files that were opened through some libraries I'm linking with. The reason for needing to do this is that the mappings made by these libraries hold references to modules that may need to be reloaded while the program is executing (potentially long running executions). The problem is the modules cannot be unloaded while my process is holding a reference. I need to be able to unmap files that were open