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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLrvo-0006HC-FG; Wed, 01 May 2019 16:18:04 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLrvl-0006Gt-Ts for linux-arm-kernel@lists.infradead.org; Wed, 01 May 2019 16:18:03 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 718BEA78; Wed, 1 May 2019 09:18:01 -0700 (PDT) Received: from e107155-lin (e107155-lin.cambridge.arm.com [10.1.196.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A8D143F719; Wed, 1 May 2019 09:17:58 -0700 (PDT) Date: Wed, 1 May 2019 17:17:52 +0100 From: Sudeep Holla To: Oleg Nesterov Subject: Re: [PATCH v3 1/4] ptrace: move clearing of TIF_SYSCALL_EMU flag to core Message-ID: <20190501161752.GA12498@e107155-lin> References: <20190430170520.29470-1-sudeep.holla@arm.com> <20190430170520.29470-2-sudeep.holla@arm.com> <20190501161330.GD30235@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190501161330.GD30235@redhat.com> 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-20190501_091801_966373_3374D68C X-CRM114-Status: GOOD ( 13.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Haibo Xu , Steve Capper , Catalin Marinas , jdike@addtoit.com, x86@kernel.org, Will Deacon , linux-kernel@vger.kernel.org, Bin Lu , Ingo Molnar , Paul Mackerras , Michael Ellerman , Andy Lutomirski , Richard Weinberger , Thomas Gleixner , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, May 01, 2019 at 06:13:30PM +0200, Oleg Nesterov wrote: > On 04/30, Sudeep Holla wrote: > > > > While the TIF_SYSCALL_EMU is set in ptrace_resume independent of any > > architecture, currently only powerpc and x86 unset the TIF_SYSCALL_EMU > > flag in ptrace_disable which gets called from ptrace_detach. > > > > Let's move the clearing of TIF_SYSCALL_EMU flag to __ptrace_unlink > > which gets executed from ptrace_detach and also keep it along with > > or close to clearing of TIF_SYSCALL_TRACE. > > > > Cc: Oleg Nesterov > > Cc: Paul Mackerras > > Cc: Michael Ellerman > > Cc: Thomas Gleixner > > Cc: Ingo Molnar > > Signed-off-by: Sudeep Holla > > Acked-by: Oleg Nesterov > Since 1/4 and 2/4 are completely independent of arm64 changes in 3&4/4, I prefer you take these via your tree. -- Regards, Sudeep _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel