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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 739ACEB64D9 for ; Thu, 29 Jun 2023 21:35:10 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id F0D588D0003; Thu, 29 Jun 2023 17:35:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EBD0C8D0001; Thu, 29 Jun 2023 17:35:09 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DABF28D0003; Thu, 29 Jun 2023 17:35:09 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id CC2E78D0001 for ; Thu, 29 Jun 2023 17:35:09 -0400 (EDT) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 8C1CC1A0CED for ; Thu, 29 Jun 2023 21:35:09 +0000 (UTC) X-FDA: 80957091138.03.3820A9C Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf11.hostedemail.com (Postfix) with ESMTP id 725D440014 for ; Thu, 29 Jun 2023 21:35:07 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=dpRkFnan; spf=pass (imf11.hostedemail.com: domain of dhowells@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=dhowells@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1688074507; h=from:from:sender: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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=vets7tG3ILEPoqG+7zzfJad8OpPNQJ5xWznjwspAC48=; b=MnOYJdPV6pYkMMvIFNmI8eeZGuD/2k50nvGfDkn3zz6GpxGUvF2M5y1En0t8qrdFjKAdTU wzeIaF0luVqUAJo7j4dKgWW2INoUaik6n2be3HE6ThjEqZrJ6riEOPijZUi8Iex1epRWMd P5p28ukrs5BxUo5zoKycCjIu6HTw0lM= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=dpRkFnan; spf=pass (imf11.hostedemail.com: domain of dhowells@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=dhowells@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1688074507; a=rsa-sha256; cv=none; b=RFxZz4sYXvKuQJbTiP67LMd/6sVr7xR4ZXRP4ukSv2Mbj6vH26W8e3hILxIAC62918437Q lAhacjBzWFENweA04FsgZdLvRtlQG0T0XTSQ57hFIe/RZlThA1NucfdOJwuUAqWxDAVDrg XGCNYxT82iiPy6W0J/UD4yS7V6A0tDs= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1688074506; 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: in-reply-to:in-reply-to:references:references; bh=vets7tG3ILEPoqG+7zzfJad8OpPNQJ5xWznjwspAC48=; b=dpRkFnan2rNlEDW+Dr0WfPX73XpM4F+nsLc3hn7i4QmSEt3LFuO41t8aVoBiTMqQfmQ4q9 1Ivf2wwZbKGHSeS1uE5lpMUc56sLZaBi8UEeo5MAGS5uxQREsF9enF8S4HZKochjpG3FdW e46KdJJydHiuPV2i0b/x8K8nA4OziUE= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-646-ygJyXz5vODysshN6s4CjSA-1; Thu, 29 Jun 2023 17:35:03 -0400 X-MC-Unique: ygJyXz5vODysshN6s4CjSA-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 692412A5954E; Thu, 29 Jun 2023 21:35:02 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id 55AB0492C13; Thu, 29 Jun 2023 21:35:00 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <253mt0il43o.fsf@mtr-vdi-124.i-did-not-set--mail-host-address--so-tickle-me> References: <253mt0il43o.fsf@mtr-vdi-124.i-did-not-set--mail-host-address--so-tickle-me> <20230620145338.1300897-1-dhowells@redhat.com> <20230620145338.1300897-11-dhowells@redhat.com> To: Aurelien Aptel Cc: dhowells@redhat.com, netdev@vger.kernel.org, Alexander Duyck , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Willem de Bruijn , David Ahern , Matthew Wilcox , Jens Axboe , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Sagi Grimberg , Willem de Bruijn , Keith Busch , Jens Axboe , Christoph Hellwig , Chaitanya Kulkarni , linux-nvme@lists.infradead.org Subject: Re: [PATCH net-next v3 10/18] nvme/host: Use sendmsg(MSG_SPLICE_PAGES) rather then sendpage MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <58465.1688074499.1@warthog.procyon.org.uk> Date: Thu, 29 Jun 2023 22:34:59 +0100 Message-ID: <58466.1688074499@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 X-Rspamd-Queue-Id: 725D440014 X-Rspam-User: X-Stat-Signature: zpetrjhgf8bodmtthh5cowdme631gmph X-Rspamd-Server: rspam01 X-HE-Tag: 1688074507-720156 X-HE-Meta: U2FsdGVkX1+8K4Me2Oh7pkMkMVChWl5KGt6uJDZ16ChejuZ32rk4RJ9L2mVioxiRWQXdVA1c/tUCy3SU9y5bms9dnW3PxotreDlFF7siIFWZcyrw8sRvdYjE3vYT+Cd7XwP/coweR78QpxiLC2NVRj1xqQkpNsTclf3LsI3i9IMZXvEZIxMGR5ZhgKpAttvfLHDg3L5FEsx+E2nN0ZsiJG4fU9zTQcGt2L28ZgrB4pODc2zHtvVINvgShaQIU/Wqt9UjeFx3dKSGGRcMEpvSIEKKfZAUV3yTZeWPvP/C1wxqvCeY+NlsVHFBZIdFr7YrFwBPMHufrL5SpEomU8ssgdDp7d8mLrJHimCCH9hZ95U2wpmhDBizyK1OPjfjJGK6Xh6YKPtoFTBxnHiVevvHMrrqObNbuw76a0eFtfqENuHIDrBoca3/PV7US+K5eVAREdodWkq2kBdyQ//4z6/h0UU5VXbL0OrIzF3bot/2SeZNy+Lv83nAx1v/KaI3Scets8C0gYhwzE7QRcULdc1rAQrFAKTV+x8SycU4zzij8HKCw6YXYdmzE3qT9aJAlPS/Yo2/9fcbNhhX5M/0CO8rQPpP8dUavmbm/PsErETk9vtioDVOziHrx43OC9yyRph6vUso1boKX8GRoUqMCg+K0fI3a1W6IuEmx7OPckhNGTdq/MM5BOz8USNFkSGIlOsDFxET7CHUlOUNjK4izt1rWQ2oZl5JQwh/89Vg7H6q5irFDsi16bXatirCJK9Ps/Edwgv/hYLcDNvF5sybaMOA59QSv02sCIEDJqSL8xDnMlubChLX5MiX0RlIKZo42IpbeZb8gcU29mYU1ZMQstTkYc4p0hFJWbt3G7LB8Kj/KZ/l/8vyLLRMnLtfQICMvfnexEnIKk9xWmiFxhWV839CbM+/cScPr1+evfNHTz6AEUeYbxzIOCQO/NjMgCxuMsBK7gxr9vfk3YVAtBlow4m D/4ZZCNv xIibGElkMND28cI7H4XHm84e3wVYleFWliI7voLX6E2aheIJUGAVo+x6sH+n4vUxwV3bZPoh3Is3YnZysUyhHRQZ9E3F/odxL1mveGyBd4skJmlZnL3QK9IOF7Ln1AUSAK5QKC5WeeJpul5sXtPDaLLaczifnU5KunfgVGR1ajApnMy/WvDR0tY9ym5vpqvSO8qwX11ENeENa6innzABh4aQg2YmxJdXR+8Zbv78tk/b/ebALrp1m4Xq6Ym3IYix4moKQzmM+xiwBqoT+PgQGeOjJ8Q== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Meh: if (!sendpage_ok(page)) - msg.msg_flags &= ~MSG_SPLICE_PAGES, + msg.msg_flags &= ~MSG_SPLICE_PAGES; bvec_set_page(&bvec, page, len, offset); David