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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD5DBC54EAA for ; Thu, 26 Jan 2023 09:53:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236877AbjAZJxN (ORCPT ); Thu, 26 Jan 2023 04:53:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53698 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229543AbjAZJxK (ORCPT ); Thu, 26 Jan 2023 04:53:10 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 78BE35D90C for ; Thu, 26 Jan 2023 01:52:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1674726744; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HWZYDHaST13TpclKR0o87AcgsReRxfEYg2kbamKtxjw=; b=AtBDEYboMRa0IlO4EH28yBvnQGsUIUTQoTs2hN/Uy0d9iJ7Pt3HggE1zisyha075+2Sc0O P8Ou6lr6apXxOSmVCk8bAevxMSL7ynwO5sEVG5BGz8mEESpAy43SB6r4XqBbW1BY21xev2 0LuEBwWUW8WpiLrB1e7UiYizMb+x90I= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-576-eLXSJVgcO5iCFJpx6JR9RA-1; Thu, 26 Jan 2023 04:52:23 -0500 X-MC-Unique: eLXSJVgcO5iCFJpx6JR9RA-1 Received: by mail-wr1-f71.google.com with SMTP id q18-20020adff512000000b002bfc49c299dso175022wro.5 for ; Thu, 26 Jan 2023 01:52:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:organization:from:references :cc:to:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=HWZYDHaST13TpclKR0o87AcgsReRxfEYg2kbamKtxjw=; b=s5nCUlxmwOpdflJ+RbST8JBrz6nCO6FXaTPHWnXKFrMF28bV/oYfyEv05z9q6ODlwx wAv1Oo6kruUKstmPXouP7AKaWLtAEV+t/4fSHoZGrsdCghR3Jyh0Czjrj/KCVw/7GfCK 4iWRi8tFsb2Pa3PMVzYRAJPS0uQBrhJNppmQ7DIfYbzJco4wHvN3HVY3m8V+LmSJJcwu 1oytrlvaja6YTn/ogMZdbGwWZ15hJH5dFDU/o72M0pPcmKLs3RYtE/Q7wN9O2FN5r1K8 A9w19wxN9zsDcG218YcP5j9+qXgU+QgRNivc11A392662JI4AHcx3HO6r3Etsgp4+ZNK p5vA== X-Gm-Message-State: AFqh2kriEibDTKYg5tFNWPOZd6G8ScfnbsxhwelHB4HDkuaZUBSOoKwi G4VayzPFxbjip5SD9TpbodTRluD+uoiPcydU+Y/1ZiIQfYHlnakzeSiTc4pORO8qkpXXA4bzlxA +rDXANelzNXcGqkzUcW/AAggn X-Received: by 2002:a5d:6e42:0:b0:2bd:fcd3:44c7 with SMTP id j2-20020a5d6e42000000b002bdfcd344c7mr29558735wrz.29.1674726742084; Thu, 26 Jan 2023 01:52:22 -0800 (PST) X-Google-Smtp-Source: AMrXdXt6POr1Th+z4xBilbq6MD55kPKMFdkWNrVBw8NH64BJ/rotUwhIVj/VoLFHThktbZr6ujT1Dg== X-Received: by 2002:a5d:6e42:0:b0:2bd:fcd3:44c7 with SMTP id j2-20020a5d6e42000000b002bdfcd344c7mr29558712wrz.29.1674726741832; Thu, 26 Jan 2023 01:52:21 -0800 (PST) Received: from ?IPV6:2a09:80c0:192:0:5dac:bf3d:c41:c3e7? ([2a09:80c0:192:0:5dac:bf3d:c41:c3e7]) by smtp.gmail.com with ESMTPSA id f12-20020adfdb4c000000b002bfb1de74absm839299wrj.114.2023.01.26.01.52.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 26 Jan 2023 01:52:21 -0800 (PST) Message-ID: Date: Thu, 26 Jan 2023 10:52:19 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH v10 1/8] iov_iter: Define flags to qualify page extraction. Content-Language: en-US To: David Howells Cc: Al Viro , Christoph Hellwig , Matthew Wilcox , Jens Axboe , Jan Kara , Jeff Layton , Jason Gunthorpe , Logan Gunthorpe , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , John Hubbard References: <20230125210657.2335748-1-dhowells@redhat.com> <20230125210657.2335748-2-dhowells@redhat.com> <2613249.1674726566@warthog.procyon.org.uk> From: David Hildenbrand Organization: Red Hat In-Reply-To: <2613249.1674726566@warthog.procyon.org.uk> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 26.01.23 10:49, David Howells wrote: > David Hildenbrand wrote: > >> Just a note that the usage of new __bitwise types instead of "unsigned" is >> encouraged for flags. >> >> See rmap_t in include/linux/rmap.h as an example. > > Hmmm... rmap_t really ought to be unsigned int. Not sure if that particularly matters here in practice, ... anyhow $ git grep "typedef int" | grep __bitwise | wc -l 27 $ git grep "typedef unsigned" | grep __bitwise | wc -l 23 So chose what you prefer ;) -- Thanks, David / dhildenb