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=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 EA580C433DF for ; Mon, 10 Aug 2020 15:17:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5AEE2075F for ; Mon, 10 Aug 2020 15:17:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="CAwx8sfi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725862AbgHJPRQ (ORCPT ); Mon, 10 Aug 2020 11:17:16 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:23045 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726284AbgHJPRP (ORCPT ); Mon, 10 Aug 2020 11:17:15 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1597072633; 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=tzFIJ6QrKu4yoI3w842fEVOcfFitxszWJPwA8w1tzak=; b=CAwx8sfioP43zkOeKWxY5PXeBlKhWdrIMh4K0LgfRTsRXs91k0NKRctpphYOjr+dS/G66l 1y86+xe4PX8ELzvf0ETpFllbjDD0dpXlI3jXk3/3gk0lP4X8wjyPuBAkbQmLYsL8sJ+eNG FbqBYYKteP4EKp6ShnI2bfo53FNj7YI= 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-298-F6eKrt3VN1Knd3NgOWyHPg-1; Mon, 10 Aug 2020 11:17:09 -0400 X-MC-Unique: F6eKrt3VN1Knd3NgOWyHPg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7D0288005B0; Mon, 10 Aug 2020 15:17:07 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-113-69.rdu2.redhat.com [10.10.113.69]) by smtp.corp.redhat.com (Postfix) with ESMTP id CB1795D9CD; Mon, 10 Aug 2020 15:16:59 +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: <1851200.1596472222@warthog.procyon.org.uk> References: <1851200.1596472222@warthog.procyon.org.uk> <447452.1596109876@warthog.procyon.org.uk> To: torvalds@linux-foundation.org Cc: dhowells@redhat.com, Alexander Viro , Matthew Wilcox , Christoph Hellwig , Jeff Layton , Dave Wysochanski , Trond Myklebust , Anna Schumaker , Steve French , Eric Van Hensbergen , linux-cachefs@redhat.com, linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [GIT PULL] fscache rewrite -- please drop for now MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <667819.1597072619.1@warthog.procyon.org.uk> Date: Mon, 10 Aug 2020 16:16:59 +0100 Message-ID: <667820.1597072619@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Hi Linus, Can you drop the fscache rewrite pull for now. We've seem an issue in NFS integration and need to rework the read helper a bit. I made an assumption that fscache will always be able to request that the netfs perform a read of a certain minimum size - but with NFS you can break that by setting rsize too small. We need to make the read helper able to make multiple netfs reads. This can help ceph too. Thanks, David