From: Dave Hansen Date: Tue, 22 Jan 2013 21:24:31 +0000 (-0800) Subject: x86, mm: Pagetable level size/shift/mask helpers X-Git-Tag: v3.9-rc1~108^2~15 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4cbeb51b860c57ba8b2ae50c4016ee7a41f5fbd5;p=pandora-kernel.git x86, mm: Pagetable level size/shift/mask helpers I plan to use lookup_address() to walk the kernel pagetables in a later patch. It returns a "pte" and the level in the pagetables where the "pte" was found. The level is just an enum and needs to be converted to a useful value in order to do address calculations with it. These helpers will be used in at least two places. This also gives the anonymous enum a real name so that no one gets confused about what they should be passing in to these helpers. "PTE_SHIFT" was chosen for naming consistency with the other pagetable levels (PGD/PUD/PMD_SHIFT). Cc: H. Peter Anvin Signed-off-by: Dave Hansen Link: http://lkml.kernel.org/r/20130122212431.405D3A8C@kernel.stglabs.ibm.com Signed-off-by: H. Peter Anvin --- Reading git-diff-tree failed