Re: [RFC v2 05/12] powerpc: Implementation for sys_mprotect_pkey() system call.

Ram Pai writes: > > +#ifdef CONFIG_PPC64_MEMORY_PROTECTION_KEYS > + > /* > * This file is included by linux/mman.h, so we can't use cacl_vm_prot_bits() > * here. How important is the optimization? > */ > -static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot, > -

[RFC v2 05/12] powerpc: Implementation for sys_mprotect_pkey() system call.

This system call, associates the pkey with PTE of all pages corresponding to the given address range. Signed-off-by: Ram Pai --- arch/powerpc/include/asm/book3s/64/pgtable.h | 22 ++- arch/powerpc/include/asm/mman.h | 29 + arch/powerpc/include/asm/pkeys.h |