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_MUTT 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 002D1C31E5B for ; Mon, 17 Jun 2019 16:40:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D37462070B for ; Mon, 17 Jun 2019 16:40:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726819AbfFQQkc (ORCPT ); Mon, 17 Jun 2019 12:40:32 -0400 Received: from mga05.intel.com ([192.55.52.43]:33029 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726776AbfFQQkc (ORCPT ); Mon, 17 Jun 2019 12:40:32 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jun 2019 09:40:30 -0700 X-ExtLoop1: 1 Received: from rameshr1-mobl.gar.corp.intel.com (HELO localhost) ([10.252.60.156]) by fmsmga005.fm.intel.com with ESMTP; 17 Jun 2019 09:40:23 -0700 Date: Mon, 17 Jun 2019 19:40:25 +0300 From: Jarkko Sakkinen To: linux-sgx@vger.kernel.org Cc: luto@kernel.org, cedric.xing@intel.com, sean.j.christopherson@intel.com Subject: Re: [PATCH RFC] x86/sgx: Do not increase encl->refcount for VMAs Message-ID: <20190617164025.GA9762@linux.intel.com> References: <20190613163008.4060-1-jarkko.sakkinen@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190613163008.4060-1-jarkko.sakkinen@linux.intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-sgx-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org On Thu, Jun 13, 2019 at 07:30:07PM +0300, Jarkko Sakkinen wrote: > Since the device file stays open up until all VMAs have been closed > we do not need to increase encl->refcount for VMAs. sgx_open() will > increase it once and sgx_release() will decrease at a point where > the device file is not mapped. anymore. > > Signed-off-by: Jarkko Sakkinen Cool if I merge this one? /Jarkko