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authorMel Gorman <mgorman@suse.de>2015-02-12 23:58:38 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-13 03:54:08 +0100
commitc819f37e7e174d68cd013abf33725b4e07ced023 (patch)
tree131bbb70b02b61f0096d38e27a7302e5bc244387 /mm
parentmm: numa: do not trap faults on the huge zero page (diff)
downloadlinux-c819f37e7e174d68cd013abf33725b4e07ced023.tar.xz
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x86: mm: restore original pte_special check
Commit b38af4721f59 ("x86,mm: fix pte_special versus pte_numa") adjusted the pte_special check to take into account that a special pte had SPECIAL and neither PRESENT nor PROTNONE. Now that NUMA hinting PTEs are no longer modifying _PAGE_PRESENT it should be safe to restore the original pte_special behaviour. Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Dave Jones <davej@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Rik van Riel <riel@redhat.com> Cc: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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