From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_2 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5F7FCA9EC7 for ; Sat, 2 Nov 2019 13:05:58 +0000 (UTC) Received: from shelob.surriel.com (shelob.surriel.com [96.67.55.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5DBD420862 for ; Sat, 2 Nov 2019 13:05:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5DBD420862 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=osku.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernelnewbies-bounces@kernelnewbies.org Received: from localhost ([::1] helo=shelob.surriel.com) by shelob.surriel.com with esmtp (Exim 4.92.3) (envelope-from ) id 1iQt62-0004FQ-9X; Sat, 02 Nov 2019 09:05:38 -0400 Received: from mout.kundenserver.de ([212.227.126.131]) by shelob.surriel.com with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.92.3) (envelope-from ) id 1iQt5x-0004FJ-3d for kernelnewbies@kernelnewbies.org; Sat, 02 Nov 2019 09:05:33 -0400 Received: from ALDOS ([88.68.133.182]) by mrelayeu.kundenserver.de (mreue011 [212.227.15.167]) with ESMTPSA (Nemesis) id 1McXs5-1hoEtG0rFN-00cyK1; Sat, 02 Nov 2019 14:05:27 +0100 Date: Sat, 2 Nov 2019 14:05:19 +0100 From: Andre Schmidt To: Greg KH Subject: Re: Simple system stats. Message-ID: <20191102140519.1ebcb664@ALDOS> In-Reply-To: <20191102120700.GA297440@kroah.com> References: <20191102125105.0b403a3b@ALDOS> <20191102120700.GA297440@kroah.com> X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-Provags-ID: V03:K1:5hvZ4HWmMo8+ViuymQpe0QhJKkvI0h6evX/te//ptUoyTH9DBqK gupXaY6QEvJQNEs1nskKKZyyiFSiiocs/KE3TvLk+80B6mT1+jBYPDIhguEJUs4shdIKkgM e+w2R1aC8Lf2xO2y9CnrHmCXEFt0f0sLQFoEfch9Edytu9jrTdL7Db1DRkig7LiMXsmeuzL uhaQVZUp0uSvkkkhO3kWQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:wUIH9F5GYPE=:tUXeZ68tx1NDTgtOk1TBFt 5YsUK8jsgqOLHAjyaxg2oBOgK697JIsNyV4CXX6wc4AgvM+5FsPr1Hh4JhbjSm+OuZ+ueedAb x2wUnfsaTV2rcyLQY3KEV18960cBwSgt6b/HDodV98zWmGchVeaQBFgogDxo1Eyj7K/4zgpX/ CeJVuXDedU+dprxcIoz0FXSwvkuf9U5SeAL9kcP5i1sInCe7ZZqks7d+0UvzlljA+ejpcMxUx IdK3xhE7sVVG0T/1ePqn9yl3E0SYmSZLB3v4tMXN2PvrXmT9q2tCy7jOeSBQVNCMFTpaVBT8E PDNG8l+knISthqQGyaGV2bXoB2wPKNfY2PR2B99q9Lc7LdNNyEhqKNzI6uAdrfi749S+/uhLU fqAToQh6qyKGQhQxP9ikE9I/oB/iOA4IOOjLoawKSXYQNJFrBad+7EatNoB66YAIm8oXf8E2e 3bXIB1lFcmTEsTRuuybwgKQ8rTbHEuKCKjaTNzVSWMt5CWVvr9znvi6lypfKofgAXVwqfWPl2 mjuSeVWdfqjqGM0R5HtR6YTPwv8QCFzX6JOwA6mt/7ZAEFzAEw7bq6euAOdE55v9Uxt5+HPqi Rlh4WCbqjfR/4mNBeIzA3D+aCWc4x+ZTMiVfVPHYHGYnjh5aWAcrOE2+SHitkDsrwuPj+kctW r17jUNr2fBwzPP0+7/EZoRvkJ6wjSK3OvGTpnuEcfJnE+chZnopi8c9U3H9puzu9VofDTAbIU nXgc7qiS+tkFLPUkrX5lBoVJi7aMkhuNyHrl9THIEJ+0oyZBIL7u0twm4RJagqCDD/uevJPAF z2DS5aYEXDwdIs/naHbTcgRFD6v59FeHdNFxSuZGSWbXtGab97owaRvtvsgMWH4zpB9HC+08a HLRBpiU1lAfBgTokswww== Cc: kernelnewbies@kernelnewbies.org X-BeenThere: kernelnewbies@kernelnewbies.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Learn about the Linux kernel List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kernelnewbies-bounces@kernelnewbies.org On Sat, 2 Nov 2019 13:07:00 +0100 Greg KH wrote: > On Sat, Nov 02, 2019 at 12:51:05PM +0100, Andre Schmidt wrote: > > Hello kernel space, > > > > user space webmonkey here, tinkering on my home desktop setup and spelunking way too many rabbit holes... damn you source code! ;P > > > > The other day i got frustrated with re-implementing parsing and calculation of /proc/stat and /proc/meminfo for my visual user interface experiments (in various languages), so i "created"* a kernel module that helps me with that (https://github.com/oskude/proc_topstat). > > > > But i could not get swap info in the kernel module, cause - i guess - it's not exported? > > So i wonder, would/could upstream EXPORT_SYMBOL(si_swapinfo)? > > If yes/maybe, where/how should i propose such change? > > Symbols and functions are only exported if an in-kernel-tree module > needs it. Sorry. > > What's wrong with parsing the existing exports of this value as-is? do you mean i can get swap usage info in a kernel module without si_swapinfo? (as seen here https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/fs/proc/meminfo.c#n44) or do you mean what is wrong with /proc/meminfo? Cheers Andre Schmidt _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies