x86, cpa: no need to check alias for __set_pages_p/__set_pages_np
authorSuresh Siddha <suresh.b.siddha@intel.com>
Tue, 23 Sep 2008 21:00:40 +0000 (14:00 -0700)
committerIngo Molnar <mingo@elte.hu>
Fri, 10 Oct 2008 17:29:15 +0000 (19:29 +0200)
commit55121b4369ced87863bf04da1f762a37e58aee4d
tree2457540a64011581ac4510cfeeba27399c4f92ae
parent0b8fdcbcd287a1fbe66817491e6149841ae25705
x86, cpa: no need to check alias for __set_pages_p/__set_pages_np

No alias checking needed for setting present/not-present mapping. Otherwise,
we may need to break large pages for 64-bit kernel text mappings (this adds to
complexity if we want to do this from atomic context especially, for ex:
with CONFIG_DEBUG_PAGEALLOC). Let's keep it simple!

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: arjan@linux.intel.com
Cc: venkatesh.pallipadi@intel.com
Cc: jeremy@goop.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/mm/pageattr.c