From: Ram Pai Subject: [RFC v6 38/62] powerpc: implementation for arch_pkeys_enabled() Date: Sat, 15 Jul 2017 20:56:40 -0700 Message-ID: <1500177424-13695-39-git-send-email-linuxram@us.ibm.com> References: <1500177424-13695-1-git-send-email-linuxram@us.ibm.com> Return-path: In-Reply-To: <1500177424-13695-1-git-send-email-linuxram@us.ibm.com> Sender: owner-linux-mm@kvack.org To: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org Cc: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au, khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com, bsingharora@gmail.com, dave.hansen@intel.com, hbabu@us.ibm.com, linuxram@us.ibm.com, arnd@arndb.de, akpm@linux-foundation.org, corbet@lwn.net, mingo@redhat.com, mhocko@kernel.org List-Id: linux-arch.vger.kernel.org arch_pkeys_enabled() returns true if the cpu supports protection key, and the kernel has it enabled. Signed-off-by: Ram Pai --- arch/powerpc/include/asm/pkeys.h | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/include/asm/pkeys.h b/arch/powerpc/include/asm/pkeys.h index 7a9aade..ea43cb2 100644 --- a/arch/powerpc/include/asm/pkeys.h +++ b/arch/powerpc/include/asm/pkeys.h @@ -201,6 +201,11 @@ static inline int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, return __arch_set_user_pkey_access(tsk, pkey, init_val); } +static inline bool arch_pkeys_enabled(void) +{ + return pkey_inited; +} + static inline void pkey_mm_init(struct mm_struct *mm) { if (!pkey_inited) -- 1.7.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org