From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by wa-out-1112.google.com with SMTP id m33so2450670wag for ; Mon, 02 Jul 2007 17:46:40 -0700 (PDT) Message-ID: <6934efce0707021746q133c62f5l803e5fa78b3535d9@mail.gmail.com> Date: Mon, 2 Jul 2007 17:46:40 -0700 From: "Jared Hulbert" Subject: Re: vm/fs meetup in september? In-Reply-To: <20070702230418.GA5630@lazybastard.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8BIT Content-Disposition: inline References: <20070624042345.GB20033@wotan.suse.de> <6934efce0706251708h7ab8d7dal6682def601a82073@mail.gmail.com> <20070626060528.GA15134@infradead.org> <6934efce0706261007x5e402eebvc528d2d39abd03a3@mail.gmail.com> <20070630093243.GD22354@infradead.org> <6934efce0707021044x44f51337ofa046c85e342a973@mail.gmail.com> <20070702230418.GA5630@lazybastard.org> Sender: owner-linux-mm@kvack.org Return-Path: To: =?ISO-8859-1?Q?J=F6rn_Engel?= Cc: Christoph Hellwig , Nick Piggin , Linux Kernel Mailing List , Linux Memory Management List , linux-fsdevel@vger.kernel.org List-ID: On 7/2/07, Jorn Engel wrote: > On Mon, 2 July 2007 10:44:00 -0700, Jared Hulbert wrote: > > > > >So what you mean is "swap on flash" ? Defintively sounds like an > > >interesting topic, although I'm not too sure it's all that > > >filesystem-related. > > > > Maybe not. Yet, it would be a very useful place to store data from a > > file as a non-volatile page cache. > > > > Also it is something that I believe would benefit from a VFS-like API. > > I mean there is a consistent interface a management layer like this > > could use, yet the algorithms used to order the data and the interface > > to the physical media may vary. There is no single right way to do > > the management layer, much like filesystems. > > > > Given the page orientation of the current VFS seems to me like there > > might be a nice way to use it for this purpose. > > > > Or maybe the real experts on this stuff can tell me how wrong that is > > and where it should go :) > > I don't believe anyone has implemented this before, so any experts would > be self-appointed. > > Maybe this should be turned into a filesystem subject after all. The > complexity comes from combining XIP with writes on the same chip. So > solving your problem should be identical to solving the rw XIP > filesystem problem. > > If there is interest in the latter, I'd offer my self-appointed > expertise. Right, the solution to swap problem is identical to the rw XIP filesystem problem. Jorn, that's why you're the self-appointed subject matter expert! -- 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