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 4E343CDB465 for ; Thu, 19 Oct 2023 13:34:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345971AbjJSNeg (ORCPT ); Thu, 19 Oct 2023 09:34:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345945AbjJSNef (ORCPT ); Thu, 19 Oct 2023 09:34:35 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D1D711D for ; Thu, 19 Oct 2023 06:34:34 -0700 (PDT) Received: from [192.168.10.2] (unknown [39.45.48.178]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: usama.anjum) by madras.collabora.co.uk (Postfix) with ESMTPSA id 15ADA6607332; Thu, 19 Oct 2023 14:34:30 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1697722472; bh=Db9hYHg4rZQexrDnvF72gkEPFeSnuHXEBOemOHXhL7M=; h=Date:Cc:Subject:To:References:From:In-Reply-To:From; b=ejW83Y7Unwt6fLX1KiAfokplZ8FqEL4KQm8haSN495An1medNQi146UQkRxQjvWIE rwpiryEQ3nRhjNwvL0yAVF5A9BU1nfy24J7s2MLW9ysd4Zw1SMZV0p6xAN/bOWBBOt jeCsHSHgVqJlnCwkuY/zG1XrIz5p6+Mh2bn3hwUGfSVEzSPO4t6qcKzdjIfRnWvEFV CbQvWFMOyoxYZXVIrruFY6ixV6W7kF/R86UWijfqUVXTaOrAVmAth5epit+oVf/Mvq xd9ajdUhe0Cma62tMO4JHd28Iu/VqnysOKWlnLDLbcl9Cv0rFyDPxY5ocQ75Q9O1Xi 0qIItkMrCASGQ== Message-ID: <041045ed-55e4-44ff-b5a9-cfdf252c33d3@collabora.com> Date: Thu, 19 Oct 2023 18:34:26 +0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: Muhammad Usama Anjum , kernel@collabora.com, linux-man@vger.kernel.org Subject: Re: [PATCH 1/2] ioctl_userfaultfd.2: add UFFD_FEATURE_WP_ASYNC Content-Language: en-US To: Alejandro Colomar References: <20231019131252.2368728-1-usama.anjum@collabora.com> From: Muhammad Usama Anjum In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org On 10/19/23 6:29 PM, Alejandro Colomar wrote: > On Thu, Oct 19, 2023 at 06:12:44PM +0500, Muhammad Usama Anjum wrote: >> Signed-off-by: Muhammad Usama Anjum >> --- >> Changes since v1: >> - Employ sementic new lines by breaking sentence before "by" >> --- >> man2/ioctl_userfaultfd.2 | 5 +++++ >> 1 file changed, 5 insertions(+) >> >> diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2 >> index e68085262..f6cafd9a2 100644 >> --- a/man2/ioctl_userfaultfd.2 >> +++ b/man2/ioctl_userfaultfd.2 >> @@ -244,6 +244,11 @@ If this feature bit is set, >> the kernel supports resolving faults with the >> .B UFFDIO_POISON >> ioctl. >> +.TP >> +.BR UFFD_FEATURE_WP_ASYNC " (since Linux 6.7)" > > Has this feature been merged? Yes, This patch is in maintainer's tree (in mm-stable these day). https://lore.kernel.org/all/20231018213452.A78A8C433C8@smtp.kernel.org It should be released with next kernel release. I'm not sure if you can accept a patch which isn't in Linus's tree yet. But these patches are already in maintainer's tree and in linux-next from almost a month. > > Thanks, > Alex > >> +If this feature bit is set, >> +the write protection faults would be asynchronously resolved >> +by the kernel. >> .PP >> The returned >> .I ioctls >> -- >> 2.42.0 >> > -- BR, Muhammad Usama Anjum