From mboxrd@z Thu Jan 1 00:00:00 1970 From: Werner Almesberger Subject: Re: [RFC] set MS_NOATIME on FAT ? Date: Tue, 15 Mar 2005 14:13:25 -0300 Message-ID: <20050315141325.U12802@almesberger.net> References: <20050314232059.R12802@almesberger.net> <871xahwoik.fsf@devron.myhome.or.jp> <20050315011820.S12802@almesberger.net> <87wts9mr7s.fsf@devron.myhome.or.jp> <20050315080407.T12802@almesberger.net> <87zmx4x5nx.fsf@devron.myhome.or.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-fsdevel@vger.kernel.org Received: from host.almesberger.net ([204.10.140.10]:60426 "EHLO host.almesberger.net") by vger.kernel.org with ESMTP id S261547AbVCORPC (ORCPT ); Tue, 15 Mar 2005 12:15:02 -0500 To: OGAWA Hirofumi Content-Disposition: inline In-Reply-To: <87zmx4x5nx.fsf@devron.myhome.or.jp>; from hirofumi@mail.parknet.co.jp on Wed, Mar 16, 2005 at 12:58:10AM +0900 Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org OGAWA Hirofumi wrote: > Looks good to me. But, I don't know whether actually DOS updates ->adate > or not. It would depend on it. According to http://home.no.net/tkos/info/fat.html, it's a new addition with VFAT. Wikipedia (http://en.wikipedia.org/wiki/VFAT) doesn't say anything, but seems in general relatively silent about FAT versions in the description of the directory entries. There might also be useful information in the FAT specification at http://www.microsoft.com/whdc/system/platform/firmware/fatgen.mspx but it seems to me that you'll need to have your IP laywers go over their very weird download license a few time before you can know if it's dangerous to read or not :-( In any case, adate clearly didn't exist in older DOS versions, so there are cases where you don't want to touch adate. An in all these, it should always be correct to set noatime. Thanks, - Werner -- _________________________________________________________________________ / Werner Almesberger, Buenos Aires, Argentina werner@almesberger.net / /_http://www.almesberger.net/____________________________________________/