From: Steve Capper Date: Tue, 30 Apr 2013 10:00:33 +0000 (+0100) Subject: ARM64: mm: Restore memblock limit when map_mem finished. X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~40^2^2~5 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6bc87c39d52b2b7aa83f16fcee46daefd26cd4d;p=pandora-kernel.git ARM64: mm: Restore memblock limit when map_mem finished. In paging_init the memblock limit is set to restrict any addresses returned by early_alloc to fit within the initial direct kernel mapping in swapper_pg_dir. This allows map_mem to allocate puds, pmds and ptes from the initial direct kernel mapping. The limit stays low after paging_init() though, meaning any bootmem allocations will be from a restricted subset of memory. Gigabyte huge pages, for instance, are normally allocated from bootmem as their order (18) is too large for the default buddy allocator (MAX_ORDER = 11). This patch restores the memblock limit when map_mem has finished, allowing gigabyte huge pages (and other objects) to be allocated from all of bootmem. Signed-off-by: Steve Capper Acked-by: Catalin Marinas --- Reading git-diff-tree failed