From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 9 Sep 2001 10:32:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 9 Sep 2001 10:32:18 -0400 Received: from penguin.e-mind.com ([195.223.140.120]:63793 "EHLO penguin.e-mind.com") by vger.kernel.org with ESMTP id ; Sun, 9 Sep 2001 10:32:05 -0400 Date: Sun, 9 Sep 2001 16:31:56 +0200 From: Andrea Arcangeli To: Anton Altaparmakov Cc: Linus Torvalds , Andreas Dilger , Kernel Mailing List Subject: Re: linux-2.4.10-pre5 Message-ID: <20010909163156.S11329@athlon.random> In-Reply-To: <20010908222923.H32553@turbolinux.com> <5.1.0.14.2.20010909135727.00aa8be0@pop.cus.cam.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5.1.0.14.2.20010909135727.00aa8be0@pop.cus.cam.ac.uk>; from aia21@cam.ac.uk on Sun, Sep 09, 2001 at 02:14:54PM +0100 X-GnuPG-Key-URL: http://e-mind.com/~andrea/aa.gnupg.asc X-PGP-Key-URL: http://e-mind.com/~andrea/aa.asc Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Sep 09, 2001 at 02:14:54PM +0100, Anton Altaparmakov wrote: > Not a pitfall, but a question: what happens with the get_block() callback > passed to block_read_full_page() by the readpage() address space method of anything related to file data uses the "real" pagecache that have nothing to do with this getblk pagecache backed logic, this is only a trick to share the ram memory for the physically indexed disk cache and not to run into the alising issues. I cannot see anything obviously wrong with this logic so I believe it worth a try to implement but I will do that after I finished other things. Also since Daniel may have just finished implementing that he may just send me the buffer.c diff that I can check and integrate into the blkdev-pagecache work in the future. Andrea