From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 6204 invoked from network); 13 Dec 2020 16:50:07 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 13 Dec 2020 16:50:07 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id E8BE89B92A; Mon, 14 Dec 2020 02:50:04 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 2567893D37; Mon, 14 Dec 2020 02:49:24 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 6221393D37; Mon, 14 Dec 2020 02:49:22 +1000 (AEST) Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by minnie.tuhs.org (Postfix) with ESMTPS id B36C693D29 for ; Mon, 14 Dec 2020 02:49:21 +1000 (AEST) Received: from callcc.thunk.org (pool-72-74-133-215.bstnma.fios.verizon.net [72.74.133.215]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 0BDGnGQK002867 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 13 Dec 2020 11:49:17 -0500 Received: by callcc.thunk.org (Postfix, from userid 15806) id 4367A420136; Sun, 13 Dec 2020 11:49:16 -0500 (EST) Date: Sun, 13 Dec 2020 11:49:16 -0500 From: "Theodore Y. Ts'o" To: Jon Steinhart Message-ID: <20201213164916.GG575698@mit.edu> References: <20201209165854.GK52960@mit.edu> <20201213010743.GE575698@mit.edu> <202012130156.0BD1ufbY2698480@darkstar.fourwinds.com> <20201213025831.GF575698@mit.edu> <202012130307.0BD37F0U2780521@darkstar.fourwinds.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202012130307.0BD37F0U2780521@darkstar.fourwinds.com> Subject: Re: [TUHS] Were cron and at done at the same time? Or one before the other? X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: The Eunuchs Hysterical Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On Sat, Dec 12, 2020 at 07:07:15PM -0800, Jon Steinhart wrote: > Theodore Y. Ts'o writes: > > > And, if you can actually make a better file system, please go for it, you're > > > a better person than me. I've looked that that code, and it's huge, has no > > > clearly defined entry and exit points, and is undocumented. While I've been > > > too busy to deal with stuff, I found some minor bugs and a possible big > > > performance improvement just from trying to read the code. > > > > Did you report those bugs and potential performance improements? > > Feedback is always gratefully accepted. > > > > As far as documentation is concerned, it's not perfect, but it's > > certainly not completely undocumented: > > > > https://www.kernel.org/doc/html/latest/filesystems/index.html > > ... > > And sorry, I wasn't clear. I wasn't talking about the code for a > particular filesystem, I was talking about the generic filesystem > code. It's certainly not perfect; if you'd like to suggest improvements, again, they would be gratefully accepted, the first link I sent you was documentation for the generic file system code, and while there is certainly more that I'd love to see documented (improvements and bug reports gratefully accepted), the entry points are certainly one of the things that is quite well defined: https://www.kernel.org/doc/html/latest/filesystems/vfs.html Cheers, - Ted