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 22339 invoked from network); 13 Dec 2020 19:06:44 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 13 Dec 2020 19:06:44 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id E1AAD9C7CB; Mon, 14 Dec 2020 05:06:41 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 9A4D19C7A0; Mon, 14 Dec 2020 05:06:11 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id C70719C7A0; Mon, 14 Dec 2020 05:06:08 +1000 (AEST) Received: from fourwinds.com (fourwinds.com [63.64.179.162]) by minnie.tuhs.org (Postfix) with ESMTPS id 5B0909C78F for ; Mon, 14 Dec 2020 05:06:08 +1000 (AEST) Received: from darkstar.fourwinds.com (localhost [127.0.0.1]) by fourwinds.com (8.15.2/8.15.2) with ESMTPS id 0BDJ665P2998024 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT) for ; Sun, 13 Dec 2020 11:06:06 -0800 Received: from darkstar.fourwinds.com (jon@localhost) by darkstar.fourwinds.com (8.15.2/8.15.2/Submit) with ESMTP id 0BDJ665f2998021 for ; Sun, 13 Dec 2020 11:06:06 -0800 Message-Id: <202012131906.0BDJ665f2998021@darkstar.fourwinds.com> From: Jon Steinhart To: The Eunuchs Hysterical Society In-reply-to: <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> <20201213164916.GG575698@mit.edu> Comments: In-reply-to "Theodore Y. Ts'o" message dated "Sun, 13 Dec 2020 11:49:16 -0500." MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <2998019.1607886366.1@darkstar.fourwinds.com> Date: Sun, 13 Dec 2020 11:06:06 -0800 X-JON-SPAM: local delivery Subject: Re: [TUHS] Were cron and at done at the same time? Or one before the other? [ really linux and filesystems ] 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Theodore Y. Ts'o writes: > 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 This isn't really on-topic for TUHS so I'll give you a longer answer by private email. Yes, I agree that there is documentation for parts of the code, some of which even refers to the current version. Been through a good pile of it. Still no clue as to the entry points in namei.c. Jon