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 ED93EEE57E4 for ; Fri, 8 Sep 2023 08:42:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229448AbjIHImX (ORCPT ); Fri, 8 Sep 2023 04:42:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33132 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232097AbjIHImX (ORCPT ); Fri, 8 Sep 2023 04:42:23 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F3351BC8 for ; Fri, 8 Sep 2023 01:41:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1694162503; 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=hY8tZO882Jl0E+LR6+k1KutgEB/prW8NTGo4X92b6p4=; b=itts2LabGPFR5Yp4TkiqxX+yxSIYljR+aJr4hcQnexPsFW8Qb1TR3OAYsuxbafVqSO6I20 6WihqOPwnMVJY74+f4wZSMm/Vyaue0gIAdLH59kBZ5bmkwCylYTF1A8iMuUcEap8Lzz0YI zcuU3RURC4d21qe84BczgwBt8GsVWn8= 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-367-cb6fuJdoPgeyTvXtnnt2jQ-1; Fri, 08 Sep 2023 04:41:42 -0400 X-MC-Unique: cb6fuJdoPgeyTvXtnnt2jQ-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7FCE2817077; Fri, 8 Sep 2023 08:41:41 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.148]) by smtp.corp.redhat.com (Postfix) with ESMTP id 85397525726; Fri, 8 Sep 2023 08:41:37 +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: <20230905141604.GA27370@lst.de> References: <20230905141604.GA27370@lst.de> To: Christoph Hellwig Cc: dhowells@redhat.com, Jan Kara , David Hildenbrand , Peter Xu , Lei Huang , miklos@szeredi.hu, Xiubo Li , Ilya Dryomov , Jeff Layton , Trond Myklebust , Anna Schumaker , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , John Fastabend , Jakub Sitnicki , Boris Pismenny , linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, ceph-devel@vger.kernel.org, linux-mm@kvack.org, v9fs@lists.linux.dev, netdev@vger.kernel.org Subject: Re: getting rid of the last memory modifitions through gup(FOLL_GET) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1520559.1694162496.1@warthog.procyon.org.uk> Date: Fri, 08 Sep 2023 09:41:36 +0100 Message-ID: <1520560.1694162496@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Christoph Hellwig wrote: > we've made some nice progress on converting code that modifies user > memory to the pin_user_pages interface, especially though the work > from David Howells on iov_iter_extract_pages. This thread tries to > coordinate on how to finish off this work. Right at this moment, I'm writing some kunit tests for iov_iter and I've found at least one bug. David