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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 00814C433E0 for ; Tue, 5 Jan 2021 13:38:24 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 973C922B3B for ; Tue, 5 Jan 2021 13:38:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 973C922B3B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tklengyel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.61993.109437 (Exim 4.92) (envelope-from ) id 1kwmXC-0004CV-3C; Tue, 05 Jan 2021 13:38:02 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 61993.109437; Tue, 05 Jan 2021 13:38:02 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kwmXC-0004CO-04; Tue, 05 Jan 2021 13:38:02 +0000 Received: by outflank-mailman (input) for mailman id 61993; Tue, 05 Jan 2021 13:38:00 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kwmXA-0004CJ-Cx for xen-devel@lists.xenproject.org; Tue, 05 Jan 2021 13:38:00 +0000 Received: from MTA-09-3.privateemail.com (unknown [68.65.122.19]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id eb7e9ff7-a5d3-413c-96cd-be951f439ee8; Tue, 05 Jan 2021 13:37:59 +0000 (UTC) Received: from MTA-09.privateemail.com (localhost [127.0.0.1]) by MTA-09.privateemail.com (Postfix) with ESMTP id 9916C60083 for ; Tue, 5 Jan 2021 08:37:58 -0500 (EST) Received: from mail-wr1-f41.google.com (unknown [10.20.151.236]) by MTA-09.privateemail.com (Postfix) with ESMTPA id 627CE60082 for ; Tue, 5 Jan 2021 13:37:58 +0000 (UTC) Received: by mail-wr1-f41.google.com with SMTP id t30so36241937wrb.0 for ; Tue, 05 Jan 2021 05:37:58 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: eb7e9ff7-a5d3-413c-96cd-be951f439ee8 X-Gm-Message-State: AOAM5300jtZGVFMailh66sBWQ6HOl0mZSCU1h/2yXp33A1xtn3l0rrh8 ptxMWoMeB8DbNx7SgcKO5BqSVGRvNSoayuWnvX0= X-Google-Smtp-Source: ABdhPJyehLtdrdk329+NSNoPE6eeh8tLos7KIummUGohwoH9G8WVCic8G5n4LNiHr/ean5PYkPI0R/qolA7w9rwNG4E= X-Received: by 2002:adf:d082:: with SMTP id y2mr85969962wrh.301.1609853877003; Tue, 05 Jan 2021 05:37:57 -0800 (PST) MIME-Version: 1.0 References: <3f069a0e-39a9-f5c8-154e-ac41e8b2a1c8@suse.com> <3b9757c7-d0cb-9a47-b508-71b2e3b75a68@suse.com> In-Reply-To: <3b9757c7-d0cb-9a47-b508-71b2e3b75a68@suse.com> From: Tamas K Lengyel Date: Tue, 5 Jan 2021 08:37:20 -0500 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 5/5] x86/mem-sharing: don't pointlessly use get_domain_by_id() To: Jan Beulich Cc: "xen-devel@lists.xenproject.org" , Andrew Cooper , George Dunlap , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= Content-Type: text/plain; charset="UTF-8" X-Virus-Scanned: ClamAV using ClamSMTP On Tue, Jan 5, 2021 at 8:28 AM Jan Beulich wrote: > > For short-lived references rcu_lock_domain_by_id() is the better > (slightly cheaper) alternative. > > Signed-off-by: Jan Beulich Acked-by: Tamas K Lengyel