From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Desnoyers Subject: Re: [PATCH for 4.18 0/6] Restartable Sequences updates Date: Mon, 9 Jul 2018 14:04:44 -0400 (EDT) Message-ID: <2129841179.2387.1531159484965.JavaMail.zimbra@efficios.com> References: <20180708210330.27324-1-mathieu.desnoyers@efficios.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180708210330.27324-1-mathieu.desnoyers@efficios.com> Sender: linux-kernel-owner@vger.kernel.org To: Thomas Gleixner Cc: linux-kernel , linux-api , Peter Zijlstra , "Paul E. McKenney" , Boqun Feng , Andy Lutomirski , Dave Watson , Paul Turner , Andrew Morton , Russell King , Ingo Molnar , "H. Peter Anvin" , Andi Kleen , Chris Lameter , Ben Maurer , rostedt , Josh Triplett , Linus Torvalds , Catalin Marinas , Will Deacon , Michael List-Id: linux-api@vger.kernel.org ----- On Jul 8, 2018, at 5:03 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote: > Following the recent discussion thread [1] about rseq uapi, here is > a set of updates submitted for integration into 4.18. Those change all > rseq __get_user/__put_user for get_user/put_user as discussed. Considering that ppc32 does not implement 64-bit get_user(), I will re-spin the whole series using __copy_from_user/__copy_to_user() to replace __get_user()/__put_user() to load/store the 64-bit rseq_cs field. I'm aiming for a minimal change at this stage of the rc cycle. Thanks, Mathieu > > Thanks, > > Mathieu > > [1] > https://lkml.kernel.org/r/20180702223143.4663-1-mathieu.desnoyers@efficios.com > > Mathieu Desnoyers (6): > rseq: use __u64 for rseq_cs fields, validate user inputs > rseq: use get_user/put_user rather than __get_user/__put_user > rseq: uapi: update uapi comments > rseq: uapi: declare rseq_cs field as union, update includes > rseq: remove unused types_32_64.h uapi header > rseq/selftests: cleanup: update comment above rseq_prepare_unload > > include/uapi/linux/rseq.h | 102 ++++++++++++++++++++---------------- > include/uapi/linux/types_32_64.h | 50 ------------------ > kernel/rseq.c | 36 ++++++++----- > tools/testing/selftests/rseq/rseq.h | 24 ++++++--- > 4 files changed, 97 insertions(+), 115 deletions(-) > delete mode 100644 include/uapi/linux/types_32_64.h > > -- > 2.11.0 -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com