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=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 D95FFC4360C for ; Tue, 24 Sep 2019 08:28:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A675520872 for ; Tue, 24 Sep 2019 08:28:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="hEr+GJ4R" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2395020AbfIXI2w (ORCPT ); Tue, 24 Sep 2019 04:28:52 -0400 Received: from mout.web.de ([212.227.15.3]:56113 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2394923AbfIXI2v (ORCPT ); Tue, 24 Sep 2019 04:28:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1569313715; bh=81JZBQpINSCG3/xfWngKEmRt/JYECAlDxcVtcKbD0XQ=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=hEr+GJ4RlK/hsMoY0C/r5GnM/nsLXtR9L9fV42Ha784ZP0Sc4t/aqOBD/fg1HZiBy i1uVvlHrGPxx/zcQtXq78+Y/KD9WNz/3HPFRjacY9XR1hA/dW7mWt+92f0ke2ko63S 4YsFsEvHo/8F4aS94Z36l7FnvuBbDE6nCRyCijAg= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.131.71.162]) by smtp.web.de (mrweb001 [213.165.67.108]) with ESMTPSA (Nemesis) id 0MfYXz-1iWfm420E7-00P72Z; Tue, 24 Sep 2019 10:28:35 +0200 Subject: Re: sched: make struct task_struct::state 32-bit To: Valentin Schneider , Julia Lawall Cc: Alexey Dobriyan , dm-devel@redhat.com, linux-block@vger.kernel.org, rcu@vger.kernel.org, linux-kernel@vger.kernel.org, Andrea Arcangeli , Ingo Molnar , Jens Axboe , Peter Zijlstra References: <7e3e784c-e8e6-f9ba-490f-ec3bf956d96b@web.de> <0c4dcb91-4830-0013-b8c6-64b9e1ce47d4@arm.com> <32d65b15-1855-e7eb-e9c4-81560fab62ea@arm.com> From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:+LGehVKc09r1KuvfQbU6UtXN4wMbiGphRgKwWf6E5/pcoBay+CX hxQtIG/AXQEA72ofNH+z/E/IQpI5dOlGwrkTiXGvRXac9WkyaBILSc1Nm7Y6OAR1aZzZvWg nHknsoTJNX0ExTzcE5uNE85trDQdcAC0c4Zi+3Wh4WnEWRN1kWL+oGgg1Dsbvi+YoiGCEiN 8Xi5iXU/pgbViJyNEWwpg== X-UI-Out-Filterresults: notjunk:1;V03:K0:ndp5C+YO2XY=:bEjXmQLpbsDAKujsReYlP8 /XjsIU2C+Ky2XLlpzdHutvatEFcllHuXSxRUC/kxW5mVs4L56PKsiWb3Vu/awYqYOSUjCiFtK Tn9ch+XE0/oigNL9MCWTwiVeKf/bl4s1ntlH+QK8zpEvIghww7JM9k0mLUP/MKrAgBcIJGXk6 fFTmhQenEdXjTJjJtRE4qykb3cgp25icMONDt+BUgdfLscQDk79gZxs04A0VtoCP21oxIxYNs M9/mqOV9UawZUTzbd0k0GAHBRPp64+TqC8YIhXu9TXcLeBW+PFPqXCCU6kT718VIb3HthvWLr pcnu7HKUmXXdsvpfY0qiNtG3iOxFkdFA2FKJecfLN+VZlHVVbu1yaJ+bJlLebOfFKdwR1q3/r GlEDkuCt+L0BHFMgUge/73z14ZDk7KGwdJm6CykFn741DOBovrJDgDC6RiBotpTVbHtqPWj6V 6NoW29Efn3woO+w1Nrodwj3W7HoDLZej+GyZy6Da8Cl6/cTNegUSGny8MyAoxbCW5gaiEsTb1 C55rPTkg/WF4UxWSzF7x3OIUL3wHCVp5oDlCA+m201nBGwmnnLZchCXqmgWJLg9I8zXafKddS RIiiLMh2Va39nInIuOUxk80sTu6FVl9qBr3qCqAy8V5L3QuPhkktVyioTrCVqYVSTRX+I0/mM LGspeNnawObv8ixw0+lwHzH3N//oWVGlZgskvghpDq8vRH0tO/+YYVjrg+prIcLfoZxeWajJi 0EsVGGgtOLIVAPAdh+ge5KNHqK3nxJ8lQG1VvelpOAX1YFrn/BVzG1UI1OzVqVKM4jaEN9b+b qXzH/7M3UTlAYS0GiP26fbg+yd/Fqf0wTsf8YcSc5pOHjyORTLwkRqcVd0r3xa/5VhFf6Yh8N TBayi9AAhDN1fyYMMVDhawHQzU8jy2448GMq4o8ze5kDpw6ZwkfnAHzboUSLwf64eurYTvWQG IkmrpazD352W9fmVxHlN+84kAdiRohhnJS9Rxp0rs21rPduut3yWyVsyA3hV3ttpfbu8V9NJf zF9ou78u4fguhc8JeEJOaj94oMGvFZ4hYceM/9vhku023HywU45SYPKwN1gIpgRkiYdSfZW9s xFIA9iaQArvMJ6HKnkb9sQ8p6CnMAsusNE+Aj4m54WGP/xTrHYIma4f60oFCs2XyX5D7oTDtX MA7L5LzS8o0IhUz/EW1A9YN59hv1REZcUDAt97uYZ8+H/6xx6wYnPxKfVfGQQ35r4f7GWyfDh vWqXuncgK1OxgPp40RuPQf91P3AKVzgbkTbNhqFhA99XjSI7T/vcRzwinywY= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>> identifier task_state =3D~ "^TASK_"; >> >> Are there a lot of options? You can also enumerate them in {}, ie >> >> identifier task_state =3D {TASK_BLAH, TASK_BLAHBLAH}; > > Around a dozen, can be enumerated easily and is indeed probably better t= han > a regexp. Can the application of a regular expression be more convenient for such an use case? >> You want to look at the definitions of called functions? >> Coccinelle doesn't really support that, I got an other impression. >> but there are hackish ways to add that. How do you think about to discuss corresponding software development chall= enges? Regards, Markus