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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 50E2FC432C0 for ; Fri, 29 Nov 2019 12:10:41 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 200AA2086A for ; Fri, 29 Nov 2019 12:10:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UPb7TtgJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 200AA2086A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:58024 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iaf6d-0000yW-Aa for qemu-devel@archiver.kernel.org; Fri, 29 Nov 2019 07:10:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:51908) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iaeho-00083h-Gq for qemu-devel@nongnu.org; Fri, 29 Nov 2019 06:45:01 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iaehi-0001AI-Ep for qemu-devel@nongnu.org; Fri, 29 Nov 2019 06:44:55 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:20871 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iaehi-0000oa-AV for qemu-devel@nongnu.org; Fri, 29 Nov 2019 06:44:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1575027888; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EO98kSPFX5ScSytrGF7qeyKiDGrEGMCrKQiLRoYh2lg=; b=UPb7TtgJEl8sw5UrjjL7lj634ZNhBaT7Tj/ZjyhRkSH8XWA7r5cG0qcopah8lV8O10k2vl CzhgCAaz2fY/L8avdXtRJN/RF8qCwYYBdRkz+6cCFYmSD92yGTodKfqw1oximVPB9qJQc4 B0FohTnvKPqqShBTo1kKeQNDAzxOTzU= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-176-F1A7Uw9IPDqo_nZTd7AmfA-1; Fri, 29 Nov 2019 06:44:47 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D4722107ACCC; Fri, 29 Nov 2019 11:44:45 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-67.ams2.redhat.com [10.36.116.67]) by smtp.corp.redhat.com (Postfix) with ESMTP id E560819C4F; Fri, 29 Nov 2019 11:44:39 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 135E116E08; Fri, 29 Nov 2019 12:44:39 +0100 (CET) Date: Fri, 29 Nov 2019 12:44:39 +0100 From: Gerd Hoffmann To: =?utf-8?Q?Marc-Andr=C3=A9?= Lureau Subject: Re: [PATCH 0/2] RFC: add -mem-shared option Message-ID: <20191129114439.kyky7jgboclrd56w@sirius.home.kraxel.org> References: <20191128141518.628245-1-marcandre.lureau@redhat.com> <20191129070253.5hwksjrapomk434x@sirius.home.kraxel.org> <20191129092713.GA2260471@redhat.com> <20191129094230.GE2260471@redhat.com> MIME-Version: 1.0 In-Reply-To: User-Agent: NeoMutt/20180716 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: F1A7Uw9IPDqo_nZTd7AmfA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= , Eduardo Habkost , qemu-devel , Stefan Hajnoczi , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi, > > Possibly, but if we're relying on shm_open choosing the path, then > > its harder for users to know what files to clean up when QEMU crashes > > or otherwise exits wthout a shm_unlink >=20 > True, although I think you can call shm_unlink() right after > shm_open() that should limit the risk of those forgotten files. Yes, this is possible and pretty standard ... cheers, Gerd