powerpc: function to allocate gigantic hugepages
The 16G page locations have been saved during early boot in an array. The alloc_bootmem_huge_page() function adds a page from here to the huge_boot_pages list. Acked-by: NAdam Litke <agl@us.ibm.com> Signed-off-by: NJon Tollefson <kniht@linux.vnet.ibm.com> Signed-off-by: NNick Piggin <npiggin@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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