[{"id":1793243,"web_url":"http://patchwork.ozlabs.org/comment/1793243/","msgid":"<871sls4ke8.fsf@concordia.ellerman.id.au>","date":"2017-10-24T15:48:15","subject":"Re: [PATCH 08/25] powerpc: sys_pkey_alloc() and sys_pkey_free()\n\tsystem calls","submitter":{"id":46580,"url":"http://patchwork.ozlabs.org/api/people/46580/","name":"Michael Ellerman","email":"mpe@ellerman.id.au"},"content":"Ram Pai writes:\n\n> Finally this patch provides the ability for a process to\n> allocate and free a protection key.\n\nThis must be the last patch in the series.\n\nWe don't want to expose a half working interface to userspace.\n\ncheers","headers":{"Return-Path":"","X-Original-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3yLyVS5XSxz9s4s\n\tfor ;\n\tWed, 25 Oct 2017 02:53:36 +1100 (AEDT)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3yLyVS4TfwzDrCr\n\tfor ;\n\tWed, 25 Oct 2017 02:53:36 +1100 (AEDT)","from ozlabs.org (bilbo.ozlabs.org [103.22.144.67])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3yLyNQ0BLTzDr6B\n\tfor ;\n\tWed, 25 Oct 2017 02:48:22 +1100 (AEDT)","from authenticated.ozlabs.org (localhost [127.0.0.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPSA id 3yLyNN19pFz9s7p;\n\tWed, 25 Oct 2017 02:48:19 +1100 (AEDT)"],"From":"Michael Ellerman ","To":"Ram Pai , linuxppc-dev@lists.ozlabs.org","Subject":"Re: [PATCH 08/25] powerpc: sys_pkey_alloc() and sys_pkey_free()\n\tsystem calls","In-Reply-To":"<1504910713-7094-17-git-send-email-linuxram@us.ibm.com>","References":"<1504910713-7094-1-git-send-email-linuxram@us.ibm.com>\n\t<1504910713-7094-17-git-send-email-linuxram@us.ibm.com>","Date":"Tue, 24 Oct 2017 17:48:15 +0200","Message-ID":"<871sls4ke8.fsf@concordia.ellerman.id.au>","MIME-Version":"1.0","Content-Type":"text/plain","X-BeenThere":"linuxppc-dev@lists.ozlabs.org","X-Mailman-Version":"2.1.24","Precedence":"list","List-Id":"Linux on PowerPC Developers Mail List\n\t","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"ebiederm@xmission.com, linuxram@us.ibm.com, mhocko@kernel.org,\n\tpaulus@samba.org, aneesh.kumar@linux.vnet.ibm.com,\n\tbauerman@linux.vnet.ibm.com, khandual@linux.vnet.ibm.com","Errors-To":"linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org","Sender":"\"Linuxppc-dev\"\n\t"}},{"id":1793385,"web_url":"http://patchwork.ozlabs.org/comment/1793385/","msgid":"<20171024183450.GL5454@ram.oc3035372033.ibm.com>","date":"2017-10-24T18:34:50","subject":"Re: [PATCH 08/25] powerpc: sys_pkey_alloc() and sys_pkey_free()\n\tsystem calls","submitter":{"id":2667,"url":"http://patchwork.ozlabs.org/api/people/2667/","name":"Ram Pai","email":"linuxram@us.ibm.com"},"content":"On Tue, Oct 24, 2017 at 05:48:15PM +0200, Michael Ellerman wrote:\n> Ram Pai writes:\n> \n> > Finally this patch provides the ability for a process to\n> > allocate and free a protection key.\n> \n> This must be the last patch in the series.\n> \n> We don't want to expose a half working interface to userspace.\n\nThe way the patch series is organized -- this patch; even-though\nintroduces the syscall, the syscall will fail because the pkey subsystem\nis enabled only by the last patch. Till than the code exists , but does\na great job of failing with an appropriate return code.\n\nHope this helps,\nRP","headers":{"Return-Path":"","X-Original-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3yM28R4fn0z9s7f\n\tfor ;\n\tWed, 25 Oct 2017 05:38:15 +1100 (AEDT)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3yM28R3VzyzDqmt\n\tfor ;\n\tWed, 25 Oct 2017 05:38:15 +1100 (AEDT)","from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com\n\t[148.163.156.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3yM2553tHwzDql4\n\tfor ;\n\tWed, 25 Oct 2017 05:35:16 +1100 (AEDT)","from pps.filterd (m0098409.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv9OIZC3U102863\n\tfor ; Tue, 24 Oct 2017 14:35:12 -0400","from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2dt78e02ts-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor ; Tue, 24 Oct 2017 14:35:09 -0400","from localhost\n\tby e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! 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Violators will be prosecuted; \n\tTue, 24 Oct 2017 12:34:58 -0600","from b03ledav003.gho.boulder.ibm.com\n\t(b03ledav003.gho.boulder.ibm.com [9.17.130.234])\n\tby b03cxnp08026.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id v9OIYtiq63766714; Tue, 24 Oct 2017 11:34:55 -0700","from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id B97336A03B;\n\tTue, 24 Oct 2017 12:34:55 -0600 (MDT)","from ram.oc3035372033.ibm.com (unknown [9.85.182.80])\n\tby b03ledav003.gho.boulder.ibm.com (Postfix) with ESMTPS id\n\tC29656A03F; Tue, 24 Oct 2017 12:34:53 -0600 (MDT)"],"Authentication-Results":"ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=us.ibm.com\n\t(client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com;\n\tenvelope-from=linuxram@us.ibm.com; receiver=)","Date":"Tue, 24 Oct 2017 11:34:50 -0700","From":"Ram Pai ","To":"Michael Ellerman ","Subject":"Re: [PATCH 08/25] powerpc: sys_pkey_alloc() and sys_pkey_free()\n\tsystem calls","References":"<1504910713-7094-1-git-send-email-linuxram@us.ibm.com>\n\t<1504910713-7094-17-git-send-email-linuxram@us.ibm.com>\n\t<871sls4ke8.fsf@concordia.ellerman.id.au>","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"<871sls4ke8.fsf@concordia.ellerman.id.au>","User-Agent":"Mutt/1.5.20 (2009-12-10)","X-TM-AS-GCONF":"00","x-cbid":"17102418-0016-0000-0000-000007B3F1B3","X-IBM-SpamModules-Scores":"","X-IBM-SpamModules-Versions":"BY=3.00007947; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000239; SDB=6.00935883; UDB=6.00471557;\n\tIPR=6.00716149; \n\tBA=6.00005658; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017691;\n\tXFM=3.00000015; UTC=2017-10-24 18:35:00","X-IBM-AV-DETECTION":"SAVI=unused REMOTE=unused XFE=unused","x-cbparentid":"17102418-0017-0000-0000-00003BFC4D28","Message-Id":"<20171024183450.GL5454@ram.oc3035372033.ibm.com>","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-10-24_10:, , signatures=0","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=2\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1710240252","X-BeenThere":"linuxppc-dev@lists.ozlabs.org","X-Mailman-Version":"2.1.24","Precedence":"list","List-Id":"Linux on PowerPC Developers Mail List\n\t","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Reply-To":"Ram Pai ","Cc":"ebiederm@xmission.com, mhocko@kernel.org, paulus@samba.org,\n\taneesh.kumar@linux.vnet.ibm.com, bauerman@linux.vnet.ibm.com,\n\tlinuxppc-dev@lists.ozlabs.org, khandual@linux.vnet.ibm.com","Errors-To":"linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org","Sender":"\"Linuxppc-dev\"\n\t"}},{"id":1793659,"web_url":"http://patchwork.ozlabs.org/comment/1793659/","msgid":"<87a80f1sth.fsf@concordia.ellerman.id.au>","date":"2017-10-25T09:26:50","subject":"Re: [PATCH 08/25] powerpc: sys_pkey_alloc() and sys_pkey_free()\n\tsystem calls","submitter":{"id":46580,"url":"http://patchwork.ozlabs.org/api/people/46580/","name":"Michael Ellerman","email":"mpe@ellerman.id.au"},"content":"Ram Pai writes:\n\n> On Tue, Oct 24, 2017 at 05:48:15PM +0200, Michael Ellerman wrote:\n>> Ram Pai writes:\n>> \n>> > Finally this patch provides the ability for a process to\n>> > allocate and free a protection key.\n>> \n>> This must be the last patch in the series.\n>> \n>> We don't want to expose a half working interface to userspace.\n>\n> The way the patch series is organized -- this patch; even-though\n> introduces the syscall, the syscall will fail because the pkey subsystem\n> is enabled only by the last patch. Till than the code exists , but does\n> a great job of failing with an appropriate return code.\n\nSee my previous mail :)\n\nPlease don't add the syscall until it can work.\n\ncheers","headers":{"Return-Path":"","X-Original-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3yMPv95LD2z9sNx\n\tfor ;\n\tWed, 25 Oct 2017 20:28:05 +1100 (AEDT)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3yMPv94VyXzDqvG\n\tfor ;\n\tWed, 25 Oct 2017 20:28:05 +1100 (AEDT)","from ozlabs.org (bilbo.ozlabs.org [103.22.144.67])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3yMPsw1fLFzDqkp\n\tfor ;\n\tWed, 25 Oct 2017 20:27:00 +1100 (AEDT)","from authenticated.ozlabs.org (localhost [127.0.0.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPSA id 3yMPss6W1jz9sNx;\n\tWed, 25 Oct 2017 20:26:57 +1100 (AEDT)"],"From":"Michael Ellerman ","To":"Ram Pai ","Subject":"Re: [PATCH 08/25] powerpc: sys_pkey_alloc() and sys_pkey_free()\n\tsystem calls","In-Reply-To":"<20171024183450.GL5454@ram.oc3035372033.ibm.com>","References":"<1504910713-7094-1-git-send-email-linuxram@us.ibm.com>\n\t<1504910713-7094-17-git-send-email-linuxram@us.ibm.com>\n\t<871sls4ke8.fsf@concordia.ellerman.id.au>\n\t<20171024183450.GL5454@ram.oc3035372033.ibm.com>","Date":"Wed, 25 Oct 2017 11:26:50 +0200","Message-ID":"<87a80f1sth.fsf@concordia.ellerman.id.au>","MIME-Version":"1.0","Content-Type":"text/plain","X-BeenThere":"linuxppc-dev@lists.ozlabs.org","X-Mailman-Version":"2.1.24","Precedence":"list","List-Id":"Linux on PowerPC Developers Mail List\n\t","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"ebiederm@xmission.com, mhocko@kernel.org, paulus@samba.org,\n\taneesh.kumar@linux.vnet.ibm.com, bauerman@linux.vnet.ibm.com,\n\tlinuxppc-dev@lists.ozlabs.org, khandual@linux.vnet.ibm.com","Errors-To":"linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org","Sender":"\"Linuxppc-dev\"\n\t"}}]