memory-hotplug: remove memmap of sparse-vmemmap

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / x86 / mm / init_64.c

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 4e58b83..474e28f 100644 (file)
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1011,6 +1011,14 @@ remove_pagetable(unsigned long start, unsigned long end, bool direct)
        flush_tlb_all();
 }
 
+void __ref vmemmap_free(struct page *memmap, unsigned long nr_pages)
+{
+       unsigned long start = (unsigned long)memmap;
+       unsigned long end = (unsigned long)(memmap + nr_pages);
+
+       remove_pagetable(start, end, false);
+}
+
 static void __meminit
 kernel_physical_mapping_remove(unsigned long start, unsigned long end)
 {