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=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 1CCEBC433E0 for ; Tue, 7 Jul 2020 21:42:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E49BB206DF for ; Tue, 7 Jul 2020 21:42:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="E44Npy+u" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728789AbgGGVme (ORCPT ); Tue, 7 Jul 2020 17:42:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726273AbgGGVme (ORCPT ); Tue, 7 Jul 2020 17:42:34 -0400 Received: from mail-io1-xd33.google.com (mail-io1-xd33.google.com [IPv6:2607:f8b0:4864:20::d33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17E60C061755; Tue, 7 Jul 2020 14:42:34 -0700 (PDT) Received: by mail-io1-xd33.google.com with SMTP id i4so44763266iov.11; Tue, 07 Jul 2020 14:42:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=eEphcFSLy8QcL2YgiuOYJ/038OCI0x9oymTZf0ealxU=; b=E44Npy+uD9w9OdRwhIZI8Eg596xSQB5BuN5tTCsfBVLb3wIB2ftJHf4hYQ1VdIgGzT ILX4A6wUkGdfVD00JELfXSv2arJ0OJ46HvKLA8nVtOHWQ6cUR///emWAakv8t0ax/4Ch xU6ihHXBkiGPNCFB0aaBoNuzU6x8Wpa8PtgGPuhiFEIxx+7+Z661VhObYrAYIgy/HgkZ f2LXtoeD8pjfl3ZgBYy+f6hwfPVTrOI4huglmsTpTaQNhlSc/4Tm8dccT0beKKwDvnKd hR+EopVSR8+8GKVpinFtIMhL3JZBsO29W9sMXcJm4/wWEYeCBbJSe6iw/Ekf0zLnCWpp WAtw== 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=eEphcFSLy8QcL2YgiuOYJ/038OCI0x9oymTZf0ealxU=; b=i7kfZuKlY2bDHu8AZaw6D4TEbkVKJg/tNbZY1UaDR7T/aXRwfDhGZaD8XeGNtjFKqz Xp3okzZwl4pDEkmPz3UOJ3PXYLqfF8Rm7PrqEsAV3Wc6kuGwxHBrKF2mgDr+OS/lYhUZ 6W+04AdQXj31oc4doXX/iceswaZ7V79hqTaMo0KxGn8AXfGXE3MU+4S2mhG2XLYqVfd1 Q5vcjb6kXyW5AljA9gTWIjd2XXdS+DjA/BXZENaZCpOn8SKuR2zSwhhKb9JzrjJI5u99 Nx8wvGwSBhvKfgbhF8eLzxjy7L2MZWDrWQUZoRVDj+MEP6IlBp2v2zoWRkv4kgBNpNkR dyjQ== X-Gm-Message-State: AOAM531YW4MT9ryVFh3EYZakziKzZZyNq2AEY/qZTO6Kd4kQiQjHp/ym PsanLSzaBMQ++jVhVSGYDO3WdkbigUi/yvAk3iI= X-Google-Smtp-Source: ABdhPJx6vXCFv0Sq8KiF3sflQwhJCic0rGSxeKwIiWlFas4fu6Fka6BqgyVfZM8yhXkk3dtsXcNLPYkxUjnUr6ICrAg= X-Received: by 2002:a5d:8f01:: with SMTP id f1mr33454675iof.20.1594158153413; Tue, 07 Jul 2020 14:42:33 -0700 (PDT) MIME-Version: 1.0 References: <20200707144457.1603400-1-agruenba@redhat.com> <20200707144457.1603400-2-agruenba@redhat.com> In-Reply-To: From: =?UTF-8?Q?Andreas_Gr=C3=BCnbacher?= Date: Tue, 7 Jul 2020 23:42:22 +0200 Message-ID: Subject: Re: [RFC v3 1/2] fs: Add IOCB_NOIO flag for generic_file_read_iter To: Jens Axboe Cc: Andreas Gruenbacher , Linus Torvalds , Matthew Wilcox , Dave Chinner , Linux FS-devel Mailing List , Linux-MM , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Am Di., 7. Juli 2020 um 20:40 Uhr schrieb Jens Axboe : > On 7/7/20 8:44 AM, Andreas Gruenbacher wrote: > > diff --git a/include/linux/fs.h b/include/linux/fs.h > > index 3f881a892ea7..1ab2ea19e883 100644 > > --- a/include/linux/fs.h > > +++ b/include/linux/fs.h > > @@ -315,6 +315,7 @@ enum rw_hint { > > #define IOCB_SYNC (1 << 5) > > #define IOCB_WRITE (1 << 6) > > #define IOCB_NOWAIT (1 << 7) > > +#define IOCB_NOIO (1 << 8) > > Just to make this even more trivial in terms of merge conflicts, could > you do 1 << 9 instead? Sure. Andreas