From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762006Ab0HMRzE (ORCPT ); Fri, 13 Aug 2010 13:55:04 -0400 Received: from cantor2.suse.de ([195.135.220.15]:36029 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761964Ab0HMRzD (ORCPT ); Fri, 13 Aug 2010 13:55:03 -0400 Date: Fri, 13 Aug 2010 10:54:56 -0700 From: Greg KH To: David Cross Cc: hirofumi@mail.parknet.co.jp, linux-kernel@vger.kernel.org Subject: Re: EXPORT_SYMBOL(fat_get_block) Message-ID: <20100813175456.GB15024@suse.de> References: <1281721539.5839.4.camel@odc-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1281721539.5839.4.camel@odc-laptop> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 13, 2010 at 10:45:39AM -0700, David Cross wrote: > Hello Hirofumi, > I would like to export this symbol from the vfat code and add this patch > to the Linux kernel. You are listed as the MAINTAINER for FAT and VFAT. > As such, I need your approval to do it. > The reason that I need to export this symbol is to allow for file based > DMA in which the file needs to be pre-allocated. The pre-allocated block > addresses are passed to a DMA engine which then directly transfers the > data to non-volatile storage. Also, why do this at the FAT level, and not more correctly at the block layer level? What happens if this isn't a FAT partition on the device? thanks, greg k-h