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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 14789C0650F for ; Thu, 8 Aug 2019 18:03:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E5E992171F for ; Thu, 8 Aug 2019 18:03:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728289AbfHHSD4 (ORCPT ); Thu, 8 Aug 2019 14:03:56 -0400 Received: from mga04.intel.com ([192.55.52.120]:53128 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730170AbfHHSD4 (ORCPT ); Thu, 8 Aug 2019 14:03:56 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Aug 2019 11:03:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,362,1559545200"; d="scan'208";a="169068019" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.41]) by orsmga008.jf.intel.com with ESMTP; 08 Aug 2019 11:03:55 -0700 Date: Thu, 8 Aug 2019 11:03:55 -0700 From: Sean Christopherson To: Jarkko Sakkinen Cc: linux-sgx@vger.kernel.org, Shay Katz-zamir , Serge Ayoun Subject: Re: [PATCH for_v22 11/11] x86/sgx: Shrink the enclave if ECREATE/EADD fails Message-ID: <20190808180355.GG23156@linux.intel.com> References: <20190808001254.11926-1-sean.j.christopherson@intel.com> <20190808001254.11926-12-sean.j.christopherson@intel.com> <20190808155008.i3ll4dglbc7qmqvn@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190808155008.i3ll4dglbc7qmqvn@linux.intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-sgx-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org On Thu, Aug 08, 2019 at 06:50:08PM +0300, Jarkko Sakkinen wrote: > On Wed, Aug 07, 2019 at 05:12:54PM -0700, Sean Christopherson wrote: > > Add sgx_encl_shrink() to pair with sgx_encl_grow() and use it to adjust > > the VA page count when ECREATE or EADD fails. Return the allocated VA > > page from sgx_encl_grow() so that it can be freed during shrink. > > > > Signed-off-by: Sean Christopherson > > Acked-by: Jarkko Sakkinen This missed wrapping -ENOMEM with ERR_PTR() when va_page alloation fails. Let me know if you want me to send a v2 or if you'll fix it up when applying.