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=-5.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 05307C4741C for ; Tue, 7 Jan 2020 12:36:39 +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 C560C207E0 for ; Tue, 7 Jan 2020 12:36:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DHr3G/3/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C560C207E0 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]:47890 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ioo68-0008F8-Oz for qemu-devel@archiver.kernel.org; Tue, 07 Jan 2020 07:36:36 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:54975) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ionrl-0006SM-Bb for qemu-devel@nongnu.org; Tue, 07 Jan 2020 07:21:46 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ionrk-00073P-1T for qemu-devel@nongnu.org; Tue, 07 Jan 2020 07:21:45 -0500 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:34680 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ionrj-00073H-Ty for qemu-devel@nongnu.org; Tue, 07 Jan 2020 07:21:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1578399703; h=from:from:reply-to: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=19zxblTkMnQbJp/oXFHldMSmwyEM5Z9jGiPeNEeQams=; b=DHr3G/3/49jAJZ/dWixuGGEw1Sv1Is4jRwsiVxj/ictuWuEo+CL5p1DD00ZVojJHfMDyph PA6vLLTciUya643xCqXwl6b5ora/LlaJaxEWCqTj2L7o6mN4Ztpxmj/r9Vqa0H2GV89Xpz 1zvEmvIJ7byAb2W+rN+mPqYSUjmhRUU= 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-137-_Gz9hDrOO6qimj2OltMulA-1; Tue, 07 Jan 2020 07:21:41 -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 94D16800D4C for ; Tue, 7 Jan 2020 12:21:40 +0000 (UTC) Received: from redhat.com (ovpn-112-61.ams2.redhat.com [10.36.112.61]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5C695272A9; Tue, 7 Jan 2020 12:21:36 +0000 (UTC) Date: Tue, 7 Jan 2020 12:21:33 +0000 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: "Dr. David Alan Gilbert (git)" Subject: Re: [PATCH 098/104] virtiofsd: add definition of fuse_buf_writev() Message-ID: <20200107122133.GH3368802@redhat.com> References: <20191212163904.159893-1-dgilbert@redhat.com> <20191212163904.159893-99-dgilbert@redhat.com> MIME-Version: 1.0 In-Reply-To: <20191212163904.159893-99-dgilbert@redhat.com> User-Agent: Mutt/1.12.1 (2019-06-15) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: _Gz9hDrOO6qimj2OltMulA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=utf-8 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: 207.211.31.81 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: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Cc: qemu-devel@nongnu.org, stefanha@redhat.com, vgoyal@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Dec 12, 2019 at 04:38:58PM +0000, Dr. David Alan Gilbert (git) wrot= e: > From: piaojun >=20 > Define fuse_buf_writev() which use pwritev and writev to improve io > bandwidth. Especially, the src bufs with 0 size should be skipped as > their mems are not *block_size* aligned which will cause writev failed > in direct io mode. >=20 > Signed-off-by: Jun Piao > Suggested-by: Stefan Hajnoczi > --- > tools/virtiofsd/buffer.c | 39 +++++++++++++++++++++++++++++++++++++++ > 1 file changed, 39 insertions(+) Reviewed-by: Daniel P. Berrang=C3=A9 Regards, Daniel --=20 |: https://berrange.com -o- https://www.flickr.com/photos/dberrange= :| |: https://libvirt.org -o- https://fstop138.berrange.com= :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange= :|