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[23.128.96.18]) by mx.google.com with ESMTP id jg13si13293764ejc.669.2021.02.08.01.54.59; Mon, 08 Feb 2021 01:55:23 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b=pWrqjYne; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=suse.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232138AbhBHJxU (ORCPT + 99 others); Mon, 8 Feb 2021 04:53:20 -0500 Received: from mx2.suse.de ([195.135.220.15]:57604 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231751AbhBHJmh (ORCPT ); Mon, 8 Feb 2021 04:42:37 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1612777306; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=YaeR6Sf39P/hrf0A7inZDxmPB1YsERyszTlFed0deJU=; b=pWrqjYnezRo0PoPhcVw9QuSNgJifli2QlnLsEJQrCcw5HE7QUTr/5Lo1iSqjtSGGgYueXc aXpT52NG9XEikW51RtksFPuwAvd1IFkQuyTzIENfyoMA1Vnrf3gDP83lABMKGDd0OrwrL+ tE8Elzg+YQgSJKabi8BOC4w0jTjS3jQ= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 711D8AC6E; Mon, 8 Feb 2021 09:41:46 +0000 (UTC) Subject: Re: [PATCH 6/7] xen/evtch: use smp barriers for user event ring To: Jan Beulich Cc: Boris Ostrovsky , Stefano Stabellini , Andrew Cooper , linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org References: <20210206104932.29064-1-jgross@suse.com> <20210206104932.29064-7-jgross@suse.com> <5cef0d0e-8f03-7cd2-4246-268a67a87dc5@suse.com> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: Date: Mon, 8 Feb 2021 10:41:45 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: <5cef0d0e-8f03-7cd2-4246-268a67a87dc5@suse.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="FEcWlBCP1PpGWxpo0v5xgNDeGJK5sgUIN" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --FEcWlBCP1PpGWxpo0v5xgNDeGJK5sgUIN Content-Type: multipart/mixed; boundary="ydmzFB2GhA1BIAETK1krrsw0CA38D0rEJ"; protected-headers="v1" From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= To: Jan Beulich Cc: Boris Ostrovsky , Stefano Stabellini , Andrew Cooper , linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org Message-ID: Subject: Re: [PATCH 6/7] xen/evtch: use smp barriers for user event ring References: <20210206104932.29064-1-jgross@suse.com> <20210206104932.29064-7-jgross@suse.com> <5cef0d0e-8f03-7cd2-4246-268a67a87dc5@suse.com> In-Reply-To: <5cef0d0e-8f03-7cd2-4246-268a67a87dc5@suse.com> --ydmzFB2GhA1BIAETK1krrsw0CA38D0rEJ Content-Type: multipart/mixed; boundary="------------BC7EC0D4E1E8BDD8BDAD82E2" Content-Language: en-US This is a multi-part message in MIME format. --------------BC7EC0D4E1E8BDD8BDAD82E2 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 08.02.21 10:38, Jan Beulich wrote: > On 06.02.2021 11:49, Juergen Gross wrote: >> The ring buffer for user events is used in the local system only, so >> smp barriers are fine for ensuring consistency. >> >> Reported-by: Andrew Cooper >> Signed-off-by: Juergen Gross >=20 > Reviewed-by: Jan Beulich >=20 > Albeit I think "local system" is at least ambiguous (physical > machine? VM?). How about something like "is local to the given > kernel instance"? Yes. 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