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[209.85.221.51]) by smtp.gmail.com with ESMTPSA id ak17sm2631285ejc.103.2020.12.08.10.44.47 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Dec 2020 10:44:47 -0800 (PST) Received: by mail-wr1-f51.google.com with SMTP id r3so17316320wrt.2 for ; Tue, 08 Dec 2020 10:44:47 -0800 (PST) X-Received: by 2002:a2e:8995:: with SMTP id c21mr3217172lji.251.1607452656546; Tue, 08 Dec 2020 10:37:36 -0800 (PST) MIME-Version: 1.0 References: <87tut2bqik.fsf@x220.int.ebiederm.org> <87ft4mbqen.fsf@x220.int.ebiederm.org> <875z5h4b7a.fsf@x220.int.ebiederm.org> <20201207090953.GF3040@hirez.programming.kicks-ass.net> <20201208083412.GR2414@hirez.programming.kicks-ass.net> In-Reply-To: <20201208083412.GR2414@hirez.programming.kicks-ass.net> From: Linus Torvalds Date: Tue, 8 Dec 2020 10:37:20 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH] perf: Break deadlock involving exec_update_mutex To: Peter Zijlstra Cc: Bernd Edlinger , "Eric W. Biederman" , Linux Kernel Mailing List , Ingo Molnar , Will Deacon , Jann Horn , Vasiliy Kulikov , Al Viro , Oleg Nesterov , Cyrill Gorcunov , Sargun Dhillon , Christian Brauner , Arnd Bergmann , Arnaldo Carvalho de Melo , Waiman Long , Davidlohr Bueso Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 8, 2020 at 12:34 AM Peter Zijlstra wrote: > > I suppose I'll queue the below into tip/perf/core for next merge window, > unless you want it in a hurry? LGTM, and there's no hurry. This is not a new thing, and I don't think it has been a problem in practice. Linus