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 3B4BCC77B62 for ; Mon, 3 Apr 2023 08:32:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A2E036B0072; Mon, 3 Apr 2023 04:32:56 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 9DDAA6B0074; Mon, 3 Apr 2023 04:32:56 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 87F556B0075; Mon, 3 Apr 2023 04:32:56 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 74D656B0072 for ; Mon, 3 Apr 2023 04:32:56 -0400 (EDT) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 3E18C809F7 for ; Mon, 3 Apr 2023 08:32:56 +0000 (UTC) X-FDA: 80639414352.13.71DEFF1 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf05.hostedemail.com (Postfix) with ESMTP id 61D91100013 for ; Mon, 3 Apr 2023 08:32:54 +0000 (UTC) Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=CkIMlB9t; spf=pass (imf05.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=1680510774; 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=5zbzGcbELHVtwSCvsaP+lW1lqaSUpO9wHVrHr3uaj9U=; b=RaLCcg8+Yv2oZBj1wrxoxDLs/OlrnQ1vhzq3ejgm1YCRz4Wwp6a621g35rDMNyLwIpTI6m 22FmfKjbFHiUY/0AXnWN+IpJOSAOsfDpFcUBwYn5q2n+35eRZv57nG4ASWPjJkg6aOo+FR ggimWuqdTiytsAWNNy6GQEbgmIUnGTU= ARC-Authentication-Results: i=1; imf05.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=CkIMlB9t; spf=pass (imf05.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=1680510774; a=rsa-sha256; cv=none; b=xsmqDv2XrlrCE7a/PS/ibhv1RdqbLRpDPMcQRalzrXeInDRghm8lAlsifAdZPVzkfNcz9F DEFD8/IYn76xHPyeb+fTd+2CBGXZGoySFuvsXVZ4isxsmhHqCZF5q1uoWvBN0yakewe9fJ 58zh6ioNR1UE07hzRKnAds0M0dCW2Ok= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1680510773; 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=5zbzGcbELHVtwSCvsaP+lW1lqaSUpO9wHVrHr3uaj9U=; b=CkIMlB9ty2PWunnY/RXyQSYnd4U4t4KhvO8HjQv99fKuU2MzeWvNdDMNx7Z+nGXX5gMi5P xsC5yJTpp6SG5ug+85BSNTHs9BtKPRMfZ2/gP9KxEgpMxFj+bDyoW+ekwuyT/PTfO/jM/j FfMQ43uhyMvduevg8OdseVAX6E8S7GU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-596-p01qS212NfOfPLBPAGiKpA-1; Mon, 03 Apr 2023 04:32:50 -0400 X-MC-Unique: p01qS212NfOfPLBPAGiKpA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9CB0A1818E50; Mon, 3 Apr 2023 08:32:49 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.33.36.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id 58A43C15BA0; Mon, 3 Apr 2023 08:32:47 +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: References: <7f7947d6-2a03-688b-dc5e-3887553f0106@redhat.com> <20230329141354.516864-1-dhowells@redhat.com> <20230329141354.516864-38-dhowells@redhat.com> <709552.1680158901@warthog.procyon.org.uk> To: Xiubo Li Cc: dhowells@redhat.com, Matthew Wilcox , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Al Viro , Christoph Hellwig , Jens Axboe , Jeff Layton , Christian Brauner , Chuck Lever III , Linus Torvalds , netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Ilya Dryomov , ceph-devel@vger.kernel.org Subject: Re: [RFC PATCH v2 37/48] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage() MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1814784.1680510766.1@warthog.procyon.org.uk> Date: Mon, 03 Apr 2023 09:32:46 +0100 Message-ID: <1814785.1680510766@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 61D91100013 X-Rspam-User: X-Stat-Signature: 94obi5c3i7c3qur6n9obrez3j3izt3fm X-HE-Tag: 1680510774-158959 X-HE-Meta: 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 MMMv8K+n tp5syTkGKhyL7xtTebQzdGp+hc9ofXrMOJl3GXoq68mwxK6MrzGia9+ypQnMAYgnjwXx9tTU3sBIAICW1RIDwgztlz9EKMQ9J9NizEHWww2bChRF+EZS67Npv/qdhrDO0ZZIgSvlAkmZV0w1WIuvVhMLZUj+qqoBOFAicQbtFww3AjI1wwr9WYBzvxdREP3VTNump/Ap7Xxnk3EwDsqsENZ12NWhAlunLzT3vGc68LTXQME6JHlkXiOiYoA== 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: Xiubo Li wrote: > On 3/30/23 14:48, David Howells wrote: > > Xiubo Li wrote: > > > >> BTW, will this two patch depend on the others in this patch series ? > > Yes. You'll need patches that affect TCP at least so that TCP supports > > MSG_SPLICE_PAGES, so 04-08 and perhaps 09. It's also on top of the > > patches that remove ITER_PIPE on my iov-extract branch, but I don't think > > that should affect you. > > Why I asked this is because I only could see these two ceph relevant patches > currently. Depends on how you defined 'relevant', I guess. Only two patches modify ceph directly, but there's a dependency: to make those work, TCP needs altering also. David