From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Michael Ellerman Subject: Re: [PATCH v5 05/15] livepatch/powerpc: add TIF_PATCH_PENDING thread flag In-Reply-To: <69e7b24fd0bcf912aa1ea6071d0a345901b3c741.1487036215.git.jpoimboe@redhat.com> References: <69e7b24fd0bcf912aa1ea6071d0a345901b3c741.1487036215.git.jpoimboe@redhat.com> Date: Wed, 08 Mar 2017 15:02:54 +1100 Message-ID: <87d1dsjtzl.fsf@concordia.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Archive: To: Josh Poimboeuf , Jessica Yu , Jiri Kosina , Miroslav Benes , Petr Mladek Cc: linux-kernel@vger.kernel.org, live-patching@vger.kernel.org, Heiko Carstens , x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, Vojtech Pavlik , Jiri Slaby , Chris J Arges , Andy Lutomirski , Ingo Molnar , Peter Zijlstra , Kamalesh Babulal , Balbir Singh List-ID: Josh Poimboeuf writes: > Add the TIF_PATCH_PENDING thread flag to enable the new livepatch > per-task consistency model for powerpc. The bit getting set indicates > the thread has a pending patch which needs to be applied when the thread > exits the kernel. > > The bit is included in the _TIF_USER_WORK_MASK macro so that > do_notify_resume() and klp_update_patch_state() get called when the bit > is set. > > Signed-off-by: Josh Poimboeuf > Reviewed-by: Petr Mladek > Reviewed-by: Miroslav Benes > Reviewed-by: Kamalesh Babulal > --- > arch/powerpc/include/asm/thread_info.h | 4 +++- > arch/powerpc/kernel/signal.c | 4 ++++ > 2 files changed, 7 insertions(+), 1 deletion(-) The arch changes here seem fine. I haven't tested the whole series though. Acked-by: Michael Ellerman (powerpc) cheers