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[5.9.137.197]) by mx.google.com with ESMTPS id j34si1914448wre.310.2019.02.14.08.15.58 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 14 Feb 2019 08:15:58 -0800 (PST) Received-SPF: pass (google.com: domain of bp@alien8.de designates 5.9.137.197 as permitted sender) client-ip=5.9.137.197; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=X9N2wtn6; spf=pass (google.com: domain of bp@alien8.de designates 5.9.137.197 as permitted sender) smtp.mailfrom=bp@alien8.de; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: from zn.tnic (p200300EC2BCDFC001CE8649D49136343.dip0.t-ipconnect.de [IPv6:2003:ec:2bcd:fc00:1ce8:649d:4913:6343]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 11D161EC0253; Thu, 14 Feb 2019 17:15:57 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1550160957; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=nRzGo2WdRGVlfCrR5IW3r6niSjb+gE5vLdPAiNJgD2c=; b=X9N2wtn6f0+HrkqlYxsrPU1T4BUJXTu6UuzwxZwPNn+jFGABVXEN4BN5WClF+wGi1DxAQq E/Rvm4hnd4jV3rJSqgqbAXFSHNsWcXRoVTe1Ju+cvwu5Lugv3hoDPrpvlrXJiHO4y4eoFV P1NBzIFEoRdA87/zavwJ2qWiX1cCQrQ= Date: Thu, 14 Feb 2019 17:15:52 +0100 From: Borislav Petkov To: Peter Zijlstra Cc: Khalid Aziz , juergh@gmail.com, tycho@tycho.ws, jsteckli@amazon.de, ak@linux.intel.com, torvalds@linux-foundation.org, liran.alon@oracle.com, keescook@google.com, akpm@linux-foundation.org, mhocko@suse.com, catalin.marinas@arm.com, will.deacon@arm.com, jmorris@namei.org, konrad.wilk@oracle.com, Juerg Haefliger , deepa.srinivasan@oracle.com, chris.hyser@oracle.com, tyhicks@canonical.com, dwmw@amazon.co.uk, andrew.cooper3@citrix.com, jcm@redhat.com, boris.ostrovsky@oracle.com, kanth.ghatraju@oracle.com, oao.m.martins@oracle.com, jmattson@google.com, pradeep.vincent@oracle.com, john.haxby@oracle.com, tglx@linutronix.de, kirill.shutemov@linux.intel.com, hch@lst.de, steven.sistare@oracle.com, labbott@redhat.com, luto@kernel.org, dave.hansen@intel.com, kernel-hardening@lists.openwall.com, linux-mm@kvack.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Tycho Andersen , Marco Benatto Subject: Re: [RFC PATCH v8 03/14] mm, x86: Add support for eXclusive Page Frame Ownership (XPFO) Message-ID: <20190214161552.GF4423@zn.tnic> References: <8275de2a7e6b72d19b1cd2ec5d71a42c2c7dd6c5.1550088114.git.khalid.aziz@oracle.com> <20190214105631.GJ32494@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190214105631.GJ32494@hirez.programming.kicks-ass.net> User-Agent: Mutt/1.10.1 (2018-07-13) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Feb 14, 2019 at 11:56:31AM +0100, Peter Zijlstra wrote: > > +EXPORT_SYMBOL(xpfo_kunmap); > > And these here things are most definitely not IRQ-safe. Should also be EXPORT_SYMBOL_GPL. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.