From: Catalin Marinas Date: Fri, 10 Oct 2014 14:37:28 +0000 (+0100) Subject: arm64: Align less than PAGE_SIZE pgds naturally X-Git-Tag: fixes-against-v3.18-rc2~7^2~11 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2a0b5c0d19298cad54573682321b5fe015fa5a0d;p=pandora-kernel.git arm64: Align less than PAGE_SIZE pgds naturally When the pgd size is smaller than PAGE_SIZE, pgd_alloc() uses kzalloc() to save space. However, this is not always naturally aligned as required by the architecture. This patch creates a kmem_cache for pgd allocations with the correct alignment. The current kernel configurations with 4K pages + 39-bit VA and 64K pages + 42-bit VA use a full page for the pgd and are not affected. The patch is required for 48-bit VA with 64K pages where the pgd is 512 bytes. Reported-by: Christoffer Dall Reviewed-by: Christoffer Dall Signed-off-by: Catalin Marinas --- Reading git-diff-tree failed