[PATCH 4/10] memory-hotplug : unregister memory section on SPARSEMEM_VMEMMAP

Currently __remove_section for SPARSEMEM_VMEMMAP does nothing. But even if we use SPARSEMEM_VMEMMAP, we can unregister the memory_section. So the patch add unregister_memory_section() into __remove_section(). CC: David Rientjes CC: Jiang Liu CC: Len Brown CC: Christoph Lameter Cc: Minchan

[PATCH 4/10] memory-hotplug : unregister memory section on SPARSEMEM_VMEMMAP

Currently __remove_section for SPARSEMEM_VMEMMAP does nothing. But even if we use SPARSEMEM_VMEMMAP, we can unregister the memory_section. So the patch add unregister_memory_section() into __remove_section(). CC: David Rientjes rient...@google.com CC: Jiang Liu liu...@gmail.com CC: Len Brown