Ram Pai <linuxram@xxxxxxxxxx> writes: > VM_PKEY_BITx are defined only if CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS > is enabled. Powerpc also needs these bits. Hence lets define the > VM_PKEY_BITx bits for any architecture that enables > CONFIG_ARCH_HAS_PKEYS. > Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Ram Pai <linuxram@xxxxxxxxxx> > --- > fs/proc/task_mmu.c | 4 ++-- > include/linux/mm.h | 9 +++++---- > 2 files changed, 7 insertions(+), 6 deletions(-) > > diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c > index 339e4c1..b139617 100644 > --- a/fs/proc/task_mmu.c > +++ b/fs/proc/task_mmu.c > @@ -674,13 +674,13 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) > [ilog2(VM_MERGEABLE)] = "mg", > [ilog2(VM_UFFD_MISSING)]= "um", > [ilog2(VM_UFFD_WP)] = "uw", > -#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS > +#ifdef CONFIG_ARCH_HAS_PKEYS > /* These come out via ProtectionKey: */ > [ilog2(VM_PKEY_BIT0)] = "", > [ilog2(VM_PKEY_BIT1)] = "", > [ilog2(VM_PKEY_BIT2)] = "", > [ilog2(VM_PKEY_BIT3)] = "", > -#endif > +#endif /* CONFIG_ARCH_HAS_PKEYS */ > }; > size_t i; > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index ea818ff..01381d3 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -228,15 +228,16 @@ extern int overcommit_kbytes_handler(struct ctl_table *, int, void __user *, > #define VM_HIGH_ARCH_4 BIT(VM_HIGH_ARCH_BIT_4) > #endif /* CONFIG_ARCH_USES_HIGH_VMA_FLAGS */ > > -#if defined(CONFIG_X86) > -# define VM_PAT VM_ARCH_1 /* PAT reserves whole VMA at once (x86) */ > -#if defined (CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS) > +#ifdef CONFIG_ARCH_HAS_PKEYS > # define VM_PKEY_SHIFT VM_HIGH_ARCH_BIT_0 > # define VM_PKEY_BIT0 VM_HIGH_ARCH_0 /* A protection key is a 4-bit value */ > # define VM_PKEY_BIT1 VM_HIGH_ARCH_1 > # define VM_PKEY_BIT2 VM_HIGH_ARCH_2 > # define VM_PKEY_BIT3 VM_HIGH_ARCH_3 > -#endif > +#endif /* CONFIG_ARCH_HAS_PKEYS */ > + > +#if defined(CONFIG_X86) > +# define VM_PAT VM_ARCH_1 /* PAT reserves whole VMA at once (x86) */ > #elif defined(CONFIG_PPC) > # define VM_SAO VM_ARCH_1 /* Strong Access Ordering (powerpc) */ > #elif defined(CONFIG_PARISC) > -- > 1.7.1 > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@xxxxxxxxx. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
