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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BCEB8C761A6 for ; Mon, 3 Apr 2023 08:33:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230095AbjDCId4 (ORCPT ); Mon, 3 Apr 2023 04:33:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229509AbjDCIdz (ORCPT ); Mon, 3 Apr 2023 04:33:55 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F71EFF06 for ; Mon, 3 Apr 2023 01:32:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1680510775; 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=I4UZALQPHnrlqSP5YM9Os0wRcK9JOiRcQ/5u1Y3sBtXqTtyP6MrPwIyenVoTvu1cKSfTkK bnqHyo55CQISAMFeaOhTdYOgrGVK9/CR6CgPp8S0zWu6THuea7IMZSywWOiWrE3CpSFR4S s6l8qCLw+Hlr431yfV8b6q1utSEgu+o= 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 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org 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