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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 2781EC4320E for ; Wed, 4 Aug 2021 18:46:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0C076610CC for ; Wed, 4 Aug 2021 18:46:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240518AbhHDSqf (ORCPT ); Wed, 4 Aug 2021 14:46:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240404AbhHDSpv (ORCPT ); Wed, 4 Aug 2021 14:45:51 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18F13C06179E for ; Wed, 4 Aug 2021 11:45:32 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id j1so4336165pjv.3 for ; Wed, 04 Aug 2021 11:45:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=/EQmTGydF1pIXOESNrwErzBdNg9CrOE9Mxb8eJMGl6U=; b=lYgtUH8iYVPqtvlrViEDj4VisTlI5BAnqJr+1CvEvld5nN6Rr/R75P9DnspBYe8FOA GvhNwqEoUnzWPmWB8A28qBG6O+IKvGIoCEYJ6HWqGjl3m6xhmUIME+FBpli2J/sYtzb1 0ZM6tR/MN7vxyJQIPM8zHlHp4FJpGRdzghkChnowHjsbAY5DD7MPKN9e8dHGqkCH26t5 WoEAW9u+JDUK+G5crAlmyWI+HlNoFIGDM03OwBFC3JWb/rfC5H7glsPCimWq1uuR/C9O 85bW3wAHCCflHFpo+vNcqoFkuW/Vp97Wprb+sMzRVocNrGf+R482OPaB/PGxZE/4Zaoa GVoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=/EQmTGydF1pIXOESNrwErzBdNg9CrOE9Mxb8eJMGl6U=; b=Sxi3QrnpI+99gZUVed2y+choWgxeoIS5WTNb4JaqujGn7cJwGCY7QrPHULVD6tzkJ2 YMs2rY0ItQ6f7W53n6FjHtNRmCmQIxWitYHgnlVmLrWO5uoX7HxfcJlj7Ib58XEgcYN1 JVO4Xvs2Li3SfdxgFArSckUUhbUbLQk569Yn++fUoXFJ3lnUBWtjjEs5nreX0kPjEdf/ 33EZbwcWruYUI1PdqE2vZzJIZ1yptqnGoITdLjHe01YmG0WvzBIDM311EG8Q0M//mdbM kbzH49WYYkOG5K2uLf1qhqqVg2g7v9kbaND8zbCA+pSIy8SclF7/qZYKmKCmNCQ/to26 aBUg== X-Gm-Message-State: AOAM532AdBg8EbZHRQYAbpKYvTfN7t5d4D/TvZQOzoUxBWUhIFHFe8Cn nLZPYn7fJC6lBj4aHBu2rfJ+FKY2lXpaAvO3sRXmnA== X-Google-Smtp-Source: ABdhPJwRABacfDbCANpEBh/SV7ISPXsw4UJ7/x0n6pmLObYtDw0FF3GTHMwnbKk4Jkn/qvdLfv0uzAtpGu6zUY49kjA= X-Received: by 2002:a63:3c7:: with SMTP id 190mr530402pgd.240.1628102731653; Wed, 04 Aug 2021 11:45:31 -0700 (PDT) MIME-Version: 1.0 References: <20210804174322.2898409-1-sathyanarayanan.kuppuswamy@linux.intel.com> In-Reply-To: From: Dan Williams Date: Wed, 4 Aug 2021 11:45:20 -0700 Message-ID: Subject: Re: [PATCH v1] driver: base: Add driver filter support To: Matthew Wilcox Cc: Kuppuswamy Sathyanarayanan , Greg Kroah-Hartman , "Rafael J . Wysocki" , Jonathan Corbet , Andi Kleen , Kuppuswamy Sathyanarayanan , Linux Kernel Mailing List , Linux Doc Mailing List Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 4, 2021 at 11:09 AM Matthew Wilcox wrote: > > On Wed, Aug 04, 2021 at 10:43:22AM -0700, Kuppuswamy Sathyanarayanan wrote: > > +/* Driver allow list */ > > +static LIST_HEAD(driver_allow_list); > > +/* Driver deny list */ > > +static LIST_HEAD(driver_deny_list); > > Why use a doubly-linked-list here? An allocating xarray should perform > much better and use less memory. Sounds reasonable to me.