From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0A9CC35247 for ; Mon, 27 Jan 2020 08:53:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BEB4E214DB for ; Mon, 27 Jan 2020 08:53:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="VMM/NbVJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728782AbgA0Ixc (ORCPT ); Mon, 27 Jan 2020 03:53:32 -0500 Received: from mout.gmx.net ([212.227.15.18]:42071 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726191AbgA0Ixb (ORCPT ); Mon, 27 Jan 2020 03:53:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1580115137; bh=5J3yFAs/di5oKgW1gMmea+vs9/kXgj7kul9UGWXzJDI=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=VMM/NbVJG7Kw6ZTrKLFnAP1UestTNoHBei4c68L/RMO3FcWjF8q3Wf/no9c2dV9wf 1bF8qbtP9+cY/rqxLF2/Y6NSw2RHC+OqFXXtyBIM5clttjZXVhGIkfTC21yzJEdGfn TXwsgk/LAw+LtArm7fwkgVaQkkSmnLKxYewcMarQ= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from [192.168.20.60] ([92.116.146.84]) by mail.gmx.com (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MHXBj-1irrPM2OBt-00DV4v; Mon, 27 Jan 2020 09:52:17 +0100 Subject: Re: [PATCH v4 7/9] parisc/perf: open access for CAP_SYS_PERFMON privileged process To: Alexey Budankov , Peter Zijlstra , Arnaldo Carvalho de Melo , Ingo Molnar , "jani.nikula@linux.intel.com" , "joonas.lahtinen@linux.intel.com" , "rodrigo.vivi@intel.com" , Alexei Starovoitov , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , "james.bottomley@hansenpartnership.com" , Serge Hallyn , James Morris , Will Deacon , Mark Rutland , Casey Schaufler , Robert Richter Cc: Jiri Olsa , Andi Kleen , Stephane Eranian , Igor Lubashev , Alexander Shishkin , Namhyung Kim , Kees Cook , Jann Horn , Thomas Gleixner , Tvrtko Ursulin , Lionel Landwerlin , Song Liu , linux-kernel , "linux-security-module@vger.kernel.org" , "selinux@vger.kernel.org" , "intel-gfx@lists.freedesktop.org" , "bpf@vger.kernel.org" , "linux-parisc@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "linux-perf-users@vger.kernel.org" , linux-arm-kernel@lists.infradead.org, oprofile-list@lists.sf.net References: <806e4881-5c22-5914-a656-5eeb65130dbe@linux.intel.com> From: Helge Deller Autocrypt: addr=deller@gmx.de; keydata= mQINBF3Ia3MBEAD3nmWzMgQByYAWnb9cNqspnkb2GLVKzhoH2QD4eRpyDLA/3smlClbeKkWT HLnjgkbPFDmcmCz5V0Wv1mKYRClAHPCIBIJgyICqqUZo2qGmKstUx3pFAiztlXBANpRECgwJ r+8w6mkccOM9GhoPU0vMaD/UVJcJQzvrxVHO8EHS36aUkjKd6cOpdVbCt3qx8cEhCmaFEO6u CL+k5AZQoABbFQEBocZE1/lSYzaHkcHrjn4cQjc3CffXnUVYwlo8EYOtAHgMDC39s9a7S90L 69l6G73lYBD/Br5lnDPlG6dKfGFZZpQ1h8/x+Qz366Ojfq9MuuRJg7ZQpe6foiOtqwKym/zV dVvSdOOc5sHSpfwu5+BVAAyBd6hw4NddlAQUjHSRs3zJ9OfrEx2d3mIfXZ7+pMhZ7qX0Axlq Lq+B5cfLpzkPAgKn11tfXFxP+hcPHIts0bnDz4EEp+HraW+oRCH2m57Y9zhcJTOJaLw4YpTY GRUlF076vZ2Hz/xMEvIJddRGId7UXZgH9a32NDf+BUjWEZvFt1wFSW1r7zb7oGCwZMy2LI/G aHQv/N0NeFMd28z+deyxd0k1CGefHJuJcOJDVtcE1rGQ43aDhWSpXvXKDj42vFD2We6uIo9D 1VNre2+uAxFzqqf026H6cH8hin9Vnx7p3uq3Dka/Y/qmRFnKVQARAQABtBxIZWxnZSBEZWxs ZXIgPGRlbGxlckBnbXguZGU+iQJRBBMBCAA7AhsDBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheA FiEERUSCKCzZENvvPSX4Pl89BKeiRgMFAl3J1zsCGQEACgkQPl89BKeiRgNK7xAAg6kJTPje uBm9PJTUxXaoaLJFXbYdSPfXhqX/BI9Xi2VzhwC2nSmizdFbeobQBTtRIz5LPhjk95t11q0s uP5htzNISPpwxiYZGKrNnXfcPlziI2bUtlz4ke34cLK6MIl1kbS0/kJBxhiXyvyTWk2JmkMi REjR84lCMAoJd1OM9XGFOg94BT5aLlEKFcld9qj7B4UFpma8RbRUpUWdo0omAEgrnhaKJwV8 qt0ULaF/kyP5qbI8iA2PAvIjq73dA4LNKdMFPG7Rw8yITQ1Vi0DlDgDT2RLvKxEQC0o3C6O4 iQq7qamsThLK0JSDRdLDnq6Phv+Yahd7sDMYuk3gIdoyczRkXzncWAYq7XTWl7nZYBVXG1D8 gkdclsnHzEKpTQIzn/rGyZshsjL4pxVUIpw/vdfx8oNRLKj7iduf11g2kFP71e9v2PP94ik3 Xi9oszP+fP770J0B8QM8w745BrcQm41SsILjArK+5mMHrYhM4ZFN7aipK3UXDNs3vjN+t0zi qErzlrxXtsX4J6nqjs/mF9frVkpv7OTAzj7pjFHv0Bu8pRm4AyW6Y5/H6jOup6nkJdP/AFDu 5ImdlA0jhr3iLk9s9WnjBUHyMYu+HD7qR3yhX6uWxg2oB2FWVMRLXbPEt2hRGq09rVQS7DBy dbZgPwou7pD8MTfQhGmDJFKm2ju5Ag0EXchrcwEQAOsDQjdtPeaRt8EP2pc8tG+g9eiiX9Sh rX87SLSeKF6uHpEJ3VbhafIU6A7hy7RcIJnQz0hEUdXjH774B8YD3JKnAtfAyuIU2/rOGa/v UN4BY6U6TVIOv9piVQByBthGQh4YHhePSKtPzK9Pv/6rd8H3IWnJK/dXiUDQllkedrENXrZp eLUjhyp94ooo9XqRl44YqlsrSUh+BzW7wqwfmu26UjmAzIZYVCPCq5IjD96QrhLf6naY6En3 ++tqCAWPkqKvWfRdXPOz4GK08uhcBp3jZHTVkcbo5qahVpv8Y8mzOvSIAxnIjb+cklVxjyY9 dVlrhfKiK5L+zA2fWUreVBqLs1SjfHm5OGuQ2qqzVcMYJGH/uisJn22VXB1c48yYyGv2HUN5 lC1JHQUV9734I5cczA2Gfo27nTHy3zANj4hy+s/q1adzvn7hMokU7OehwKrNXafFfwWVK3OG 1dSjWtgIv5KJi1XZk5TV6JlPZSqj4D8pUwIx3KSp0cD7xTEZATRfc47Yc+cyKcXG034tNEAc xZNTR1kMi9njdxc1wzM9T6pspTtA0vuD3ee94Dg+nDrH1As24uwfFLguiILPzpl0kLaPYYgB wumlL2nGcB6RVRRFMiAS5uOTEk+sJ/tRiQwO3K8vmaECaNJRfJC7weH+jww1Dzo0f1TP6rUa fTBRABEBAAGJAjYEGAEIACAWIQRFRIIoLNkQ2+89Jfg+Xz0Ep6JGAwUCXchrcwIbDAAKCRA+ Xz0Ep6JGAxtdEAC54NQMBwjUNqBNCMsh6WrwQwbg9tkJw718QHPw43gKFSxFIYzdBzD/YMPH l+2fFiefvmI4uNDjlyCITGSM+T6b8cA7YAKvZhzJyJSS7pRzsIKGjhk7zADL1+PJei9p9idy RbmFKo0dAL+ac0t/EZULHGPuIiavWLgwYLVoUEBwz86ZtEtVmDmEsj8ryWw75ZIarNDhV74s BdM2ffUJk3+vWe25BPcJiaZkTuFt+xt2CdbvpZv3IPrEkp9GAKof2hHdFCRKMtgxBo8Kao6p Ws/Vv68FusAi94ySuZT3fp1xGWWf5+1jX4ylC//w0Rj85QihTpA2MylORUNFvH0MRJx4mlFk XN6G+5jIIJhG46LUucQ28+VyEDNcGL3tarnkw8ngEhAbnvMJ2RTx8vGh7PssKaGzAUmNNZiG MB4mPKqvDZ02j1wp7vthQcOEg08z1+XHXb8ZZKST7yTVa5P89JymGE8CBGdQaAXnqYK3/yWf FwRDcGV6nxanxZGKEkSHHOm8jHwvQWvPP73pvuPBEPtKGLzbgd7OOcGZWtq2hNC6cRtsRdDx 4TAGMCz4j238m+2mdbdhRh3iBnWT5yPFfnv/2IjFAk+sdix1Mrr+LIDF++kiekeq0yUpDdc4 ExBy2xf6dd+tuFFBp3/VDN4U0UfG4QJ2fg19zE5Z8dS4jGIbLrgzBF3IbakWCSsGAQQB2kcP AQEHQNdEF2C6q5MwiI+3akqcRJWo5mN24V3vb3guRJHo8xbFiQKtBBgBCAAgFiEERUSCKCzZ ENvvPSX4Pl89BKeiRgMFAl3IbakCGwIAgQkQPl89BKeiRgN2IAQZFggAHRYhBLzpEj4a0p8H wEm73vcStRCiOg9fBQJdyG2pAAoJEPcStRCiOg9fto8A/3cti96iIyCLswnSntdzdYl72SjJ HnsUYypLPeKEXwCqAQDB69QCjXHPmQ/340v6jONRMH6eLuGOdIBx8D+oBp8+BGLiD/9qu5H/ eGe0rrmE5lLFRlnm5QqKKi4gKt2WHMEdGi7fXggOTZbuKJA9+DzPxcf9ShuQMJRQDkgzv/VD V1fvOdaIMlM1EjMxIS2fyyI+9KZD7WwFYK3VIOsC7PtjOLYHSr7o7vDHNqTle7JYGEPlxuE6 hjMU7Ew2Ni4SBio8PILVXE+dL/BELp5JzOcMPnOnVsQtNbllIYvXRyX0qkTD6XM2Jbh+xI9P xajC+ojJ/cqPYBEALVfgdh6MbA8rx3EOCYj/n8cZ/xfo+wR/zSQ+m9wIhjxI4XfbNz8oGECm xeg1uqcyxfHx+N/pdg5Rvw9g+rtlfmTCj8JhNksNr0NcsNXTkaOy++4Wb9lKDAUcRma7TgMk Yq21O5RINec5Jo3xeEUfApVwbueBWCtq4bljeXG93iOWMk4cYqsRVsWsDxsplHQfh5xHk2Zf GAUYbm/rX36cdDBbaX2+rgvcHDTx9fOXozugEqFQv9oNg3UnXDWyEeiDLTC/0Gei/Jd/YL1p XzCscCr+pggvqX7kI33AQsxo1DT19sNYLU5dJ5Qxz1+zdNkB9kK9CcTVFXMYehKueBkk5MaU ou0ZH9LCDjtnOKxPuUWstxTXWzsinSpLDIpkP//4fN6asmPo2cSXMXE0iA5WsWAXcK8uZ4jD c2TFWAS8k6RLkk41ZUU8ENX8+qZx/Q== Message-ID: <00d0213a-dce8-45b1-1905-11ea4af2d207@gmx.de> Date: Mon, 27 Jan 2020 09:52:10 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <806e4881-5c22-5914-a656-5eeb65130dbe@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:aIpVETSkQFdyEHqjZO3h7rjr8aYRDxnS7V9FaZk2Tm7dLtDU63A IqqI0FrCVX1l2wUjdNPMhrS7zbwhyFSFduTdfuFttOI/a7pD2/g2QldnaBBwAGjDI+98JC3 TLPxWC9yPiQPO2UM/tzq5s+LhzGIoRXQBWMlcqqBjhWSWyt9CeSVBnNpC+X0NNNAgsGwQCC Co1FNj38ObcObdv3FA0Jg== X-UI-Out-Filterresults: notjunk:1;V03:K0:BOEbCTgCEy4=:MwUtX7VDuQ8Pm7Q9fXXE3y m6+Wzto5tVfFi84hTj75AXbPx0rySVkPXUl7S5AfRF+i5wCQvON7B5L9LXn3rSXwkRHjJL2bc zNKd3lWjpRsaYJo3PCag6iVs8J8juB0/n4cM6O/nYIaEouHl4vaU4U1O52oPikrt/Hqss9YDd UoowL2mu7pUWWiqdR7rYxnvTvNa4OL5w20rxfoWKig2+SxvgsARrv90cxNEU/d9WGPygKMR9Y ry6d6abMhxbrfz3aEtq4H2rsvgQhGq3yBjrekxferXfr0GFnlOcQyiedKOZD4osJfSI1sh7ja t/LQhSiYULP46aPhFbbGpDlbHoBX7NA8OKm60GLclBc8WDbSsZRQKUL1zQNproIVTOeqJS8Xb Fxdeyjs07y0WxdaqUcf/5BdbyFhR1fwW61FP7m03Pkw63CWKawDuZE3ECXCo1BtiDAblzUfyN Q1pNIILT9HnVN5Ono64xI5E74+TQ8auzrPfmhU5cp+g4xGLIjW3gmPi5UI0ar7GBoyNjyXXR0 Sfjh7BVjtvQx7m92ZMq3WCzjGS2iYIMy/JgPcs0KkppMrYhIp4+7bfGsgaSjn6C6lW3ABQ9Pi CFolfuw8jNu98IoIyngd9Dwm9aaUvlOjg5Kf6JSEHuEZbLIN5cUmvVPab4O5OCyVMVXhCWaK1 CYMow24k1P4brb2DXmVpnUjbKrFktbYkt71F+SCk6KxBj6TwhbV9BdJSmlvfpuzfJ4ckRUgfM iHasreYa1aiiwM6umPLnET9pEk+WNxt7xVCNXoaRWviI/+uRL8cKkLkrx9KByu3gdgMS25mll zqNcvQh/c/fWmlUF6X7GuVcGRedQxvyP91eKACPPUCm2XNn8TOgZeVG3uoOj09f5LUCMrKgLi UjrwOhmoHC5mrvVVqUUC/YOE+9JRnSvPAmDKSyTofGWIynqC6ayY9xnggeBIgpvASFVn9IYYT zIQvinZfsWvecb2nMvc6pLBpAIhlYcUj/yB8hf5HpYooG2U2gCOg7O23gHgj95I3fHL3CI2dI F7t7gG66GsxfbCVv8gUw3g5wOvZ+kx3fNRlR2a6z9jfN2rwOO+vqPf6kc9LqudtZGusdmFkjl kzibafMuSHXTYZv0t5QXAA7yL4VZiJ5/2F9itXzks4WhJiqPTKVW7i3mgUy7ri43OFnEPRbHs PMtWRD4UdppG0SwcIMbve/Z8rmAbldeOLcJXubwNcUY4+KUPuKq29jPy82M+s6qHeH2Zb9Edk gjF8tb2EunU8U+2vR Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org On 18.12.19 10:29, Alexey Budankov wrote: > > Open access to monitoring for CAP_SYS_PERFMON privileged processes. > For backward compatibility reasons access to the monitoring remains open > for CAP_SYS_ADMIN privileged processes but CAP_SYS_ADMIN usage for secur= e > monitoring is discouraged with respect to CAP_SYS_PERFMON capability. > > Signed-off-by: Alexey Budankov Acked-by: Helge Deller > --- > arch/parisc/kernel/perf.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c > index 676683641d00..c4208d027794 100644 > --- a/arch/parisc/kernel/perf.c > +++ b/arch/parisc/kernel/perf.c > @@ -300,7 +300,7 @@ static ssize_t perf_write(struct file *file, const c= har __user *buf, > else > return -EFAULT; > > - if (!capable(CAP_SYS_ADMIN)) > + if (!perfmon_capable()) > return -EACCES; > > if (count !=3D sizeof(uint32_t)) >