From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id 87CFA6B02A4 for ; Fri, 23 Jul 2010 11:05:05 -0400 (EDT) Received: by pvc30 with SMTP id 30so4296302pvc.14 for ; Fri, 23 Jul 2010 08:04:57 -0700 (PDT) Message-ID: <4C49AFAE.1070300@vflare.org> Date: Fri, 23 Jul 2010 20:35:18 +0530 From: Nitin Gupta Reply-To: ngupta@vflare.org MIME-Version: 1.0 Subject: Re: [PATCH V3 0/8] Cleancache: overview References: <20100621231809.GA11111@ca-server1.us.oracle.com4C49468B.40307@vflare.org> <840b32ff-a303-468e-9d4e-30fc92f629f8@default 20100723140440.GA12423@infradead.org> <364c83bd-ccb2-48cc-920d-ffcf9ca7df19@default> In-Reply-To: <364c83bd-ccb2-48cc-920d-ffcf9ca7df19@default> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Dan Magenheimer Cc: Christoph Hellwig , akpm@linux-foundation.org, Chris Mason , viro@zeniv.linux.org.uk, adilger@sun.com, tytso@mit.edu, mfasheh@suse.com, Joel Becker , matthew@wil.cx, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-mm@kvack.org, jeremy@goop.org, JBeulich@novell.com, Kurt Hackel , npiggin@suse.de, Dave Mccracken , riel@redhat.com, avi@redhat.com, Konrad Wilk List-ID: On 07/23/2010 08:14 PM, Dan Magenheimer wrote: >> From: Christoph Hellwig [mailto:hch@infradead.org] >> Also making the ops vector global is just a bad idea. >> There is nothing making this sort of caching inherently global. > > I'm not sure I understand your point, but two very different > users of cleancache have been provided, and more will be > discussed at the MM summit next month. > > Do you have a suggestion on how to avoid a global ops > vector while still serving the needs of both existing > users? Maybe introduce cleancache_register(struct cleancache_ops *ops)? This will allow making cleancache_ops non-global. No value add but maybe that's cleaner? Thanks, Nitin -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org