From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleg Nesterov Date: Tue, 24 May 2022 13:25:01 +0000 Subject: Re: [PATCH 06/16] ptrace: Remove unnecessary locking in ptrace_(get|set)siginfo Message-Id: <20220524132500.GC14347@redhat.com> List-Id: References: <871qwq5ucx.fsf_-_@email.froward.int.ebiederm.org> <20220518225355.784371-6-ebiederm@xmission.com> In-Reply-To: <20220518225355.784371-6-ebiederm@xmission.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Eric W. Biederman" Cc: linux-kernel@vger.kernel.org, rjw@rjwysocki.net, mingo@kernel.org, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, mgorman@suse.de, bigeasy@linutronix.de, Will Deacon , tj@kernel.org, linux-pm@vger.kernel.org, Peter Zijlstra , Richard Weinberger , Anton Ivanov , Johannes Berg , linux-um@lists.infradead.org, Chris Zankel , Max Filippov , linux-xtensa@linux-xtensa.org, Kees Cook , Jann Horn , linux-ia64@vger.kernel.org, Robert OCallahan , Kyle Huey , Richard Henderson , Ivan Kokshaysky , Matt Turner , Jason Wessel , Daniel Thompson , Douglas Anderson , Douglas Miller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras On 05/18, Eric W. Biederman wrote: > > Since commit 9899d11f6544 ("ptrace: ensure arch_ptrace/ptrace_request > can never race with SIGKILL") it has been unnecessary for > ptrace_getsiginfo and ptrace_setsiginfo to use lock_task_sighand. ACK