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 657F5C433F5 for ; Fri, 10 Dec 2021 11:06:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240268AbhLJLJn (ORCPT ); Fri, 10 Dec 2021 06:09:43 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:32570 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240281AbhLJLJb (ORCPT ); Fri, 10 Dec 2021 06:09:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639134356; 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=uXmSWdAkzvhcbRft4KQZHSQCM8y6UG3Uqza0cNxYX6M=; b=AJRaeSfc3HKlPTjeNcavmyCmeeKF1Ta7D8nEfBJgyAk1VcsslWbpHZ6mozkK3Em9ejx3Ii Z97tqLqazOXVwMj4l/rNIw5TRRZ6SJ1XRsxogIcLbcrUO5/I9hDkYzFJfImDFQHII/ntaA E5Z8V9IAekgGf4Bu0aykaQK+e4KnbPI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-556-RnfZ5k-OM0e9xHj1cxvcOA-1; Fri, 10 Dec 2021 06:05:53 -0500 X-MC-Unique: RnfZ5k-OM0e9xHj1cxvcOA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1E67436393; Fri, 10 Dec 2021 11:05:52 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.33.36.122]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8F88A60BE5; Fri, 10 Dec 2021 11:05:43 +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: <20211210073619.21667-2-jefflexu@linux.alibaba.com> References: <20211210073619.21667-2-jefflexu@linux.alibaba.com> <20211210073619.21667-1-jefflexu@linux.alibaba.com> To: Jeffle Xu Cc: dhowells@redhat.com, linux-cachefs@redhat.com, xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, joseph.qi@linux.alibaba.com, bo.liu@linux.alibaba.com, tao.peng@linux.alibaba.com, gerry@linux.alibaba.com, eguan@linux.alibaba.com, linux-kernel@vger.kernel.org Subject: Re: [RFC 01/19] cachefiles: add mode command MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <269834.1639134342.1@warthog.procyon.org.uk> Date: Fri, 10 Dec 2021 11:05:42 +0000 Message-ID: <269835.1639134342@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jeffle Xu wrote: > +enum cachefiles_mode { > + CACHEFILES_MODE_CACHE, /* local cache for netfs (Default) */ > + CACHEFILES_MODE_DEMAND, /* demand read for read-only fs */ > +}; > + I would suggest just adding a flag for the moment. David