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McKenney" To: Peter Zijlstra Subject: Re: [PATCH 18/18] arm64: lto: Strengthen READ_ONCE() to acquire when CLANG_LTO=y Message-ID: <20200708182036.GR9247@paulmck-ThinkPad-P72> References: <20200701170722.4rte5ssnmrn2uqzg@bakewell.cambridge.arm.com> <20200702072301.GA15963@willie-the-truck> <20200706160023.GB10992@arm.com> <20200706163455.GV9247@paulmck-ThinkPad-P72> <20200706170556.GE10992@arm.com> <20200706173628.GZ9247@paulmck-ThinkPad-P72> <20200707102915.GI10992@arm.com> <20200707225122.GJ9247@paulmck-ThinkPad-P72> <20200708091620.GF597537@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200708091620.GF597537@hirez.programming.kicks-ass.net> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200708_192043_396862_BE9309E0 X-CRM114-Status: GOOD ( 18.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: paulmck@kernel.org Cc: Mark Rutland , "Michael S. Tsirkin" , Catalin Marinas , Jason Wang , virtualization@lists.linux-foundation.org, Will Deacon , Alan Stern , Sami Tolvanen , Matt Turner , kernel-team , Dave Martin , Marco Elver , Kees Cook , Arnd Bergmann , Boqun Feng , Josh Triplett , Steven Rostedt , Ivan Kokshaysky , Linux ARM , Richard Henderson , Nick Desaulniers , LKML , linux-alpha@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jul 08, 2020 at 11:16:20AM +0200, Peter Zijlstra wrote: > On Tue, Jul 07, 2020 at 04:01:28PM -0700, Nick Desaulniers wrote: > > I'm trying to put together a Micro Conference for Linux Plumbers > > conference focused on "make LLVM slightly less shitty." Do you all > > plan on attending the conference? Would it be worthwhile to hold a > > session focused on discussing this (LTO and memory models) be > > worthwhile? > > I'd love to have a session about compilers and memory ordering with both > GCC and CLANG in attendance. > > We need a solution for dependent-loads and control-dependencies for both > toolchains. What Peter said! ;-) Thanx, Paul _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel