diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-17 14:45:02 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-17 14:45:02 -0800 |
| commit | 6e9c6e87a662c6665053fc3cc7840ed6fa80414e (patch) | |
| tree | 2c573ee6bd9e9d77b35ec956e3dfe8aca0ae6fa6 /arch/x86/include/asm/pgtable.h | |
| parent | e6bed035ca652c43c897731366ea816ea2c4fbf1 (diff) | |
| parent | 6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff) | |
Merge 3.14-rc3 into staging-next
We want the fixes in this branch to make testing and future work easier.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/include/asm/pgtable.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index bbc8b12fa443..5ad38ad07890 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -445,10 +445,20 @@ static inline int pte_same(pte_t a, pte_t b) return a.pte == b.pte; } +static inline int pteval_present(pteval_t pteval) +{ + /* + * Yes Linus, _PAGE_PROTNONE == _PAGE_NUMA. Expressing it this + * way clearly states that the intent is that protnone and numa + * hinting ptes are considered present for the purposes of + * pagetable operations like zapping, protection changes, gup etc. + */ + return pteval & (_PAGE_PRESENT | _PAGE_PROTNONE | _PAGE_NUMA); +} + static inline int pte_present(pte_t a) { - return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE | - _PAGE_NUMA); + return pteval_present(pte_flags(a)); } #define pte_accessible pte_accessible |