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 27BC9C433F5 for ; Wed, 1 Dec 2021 07:34:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347707AbhLAHiF (ORCPT ); Wed, 1 Dec 2021 02:38:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35822 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347643AbhLAHiE (ORCPT ); Wed, 1 Dec 2021 02:38:04 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 091D0C061746 for ; Tue, 30 Nov 2021 23:34:44 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id C3A16B81BBE for ; Wed, 1 Dec 2021 07:34:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A731AC53FAD; Wed, 1 Dec 2021 07:34:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1638344081; bh=Gi1ryJPlruKkzmqv9Lpvb04zMwMOMhA8gauwZ1U0qco=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=M3jmGlQkw3cuMDCtnSx2NRJ+5s2o3+wSwJG1pBoHQNwxWEkEmFnLWbymFsMxqssrf OTwKGZTgTVsMrR87tMXCK+FaiDulMgV3bN1uW0MM/NQGC6i7bmBdRlds8L+iQvi+0N LF0416nr9VP8GdK9aqJWzmTw1yyWRSt6fK+cTYa0= Date: Wed, 1 Dec 2021 08:34:36 +0100 From: Greg KH To: Kohei Tarumizu Cc: linux-kernel@vger.kernel.org, riel@redhat.com, mchehab+huawei@kernel.org, will@kernel.org, catalin.marinas@arm.com, corbet@lwn.net, ionela.voinescu@arm.com, pcc@google.com, bilbao@vt.edu, matorola@gmail.com, rafael@kernel.org Subject: Re: [PATCH] docs: document the sysfs ABI for "nohz_full" and "isolated" Message-ID: References: <20211201071852.3568489-1-tarumizu.kohei@fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211201071852.3568489-1-tarumizu.kohei@fujitsu.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 01, 2021 at 04:18:52PM +0900, Kohei Tarumizu wrote: > Add missing documentation of sysfs ABI for "nohz_full" and "isolated". > "nohz_full" was added by commit 6570a9a1ce3a("show nohz_full cpus in > sysfs") and "isolated" was added by commit 59f30abe94bf("show isolated > cpus in sysfs"). However, there is no documentation for these > interface. > > Signed-off-by: Kohei Tarumizu > --- > Documentation/ABI/testing/sysfs-devices-system-cpu | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu > index 69c65da16dff..a9d5d87b6a41 100644 > --- a/Documentation/ABI/testing/sysfs-devices-system-cpu > +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu > @@ -666,3 +666,16 @@ Description: Preferred MTE tag checking mode > ================ ============================================== > > See also: Documentation/arm64/memory-tagging-extension.rst > + > +What: /sys/devices/system/cpu/nohz_full > + /sys/devices/system/cpu/isolated > +Date: Apr 2015 > +Contact: Linux kernel mailing list > +Description: information about CPU isolation. > + > + nohz_full: (RO) the list of CPUs that are in nohz_full mode. > + These CPUs are set by boot parameter "nohz_full=". > + > + isolated: (RO) the list of CPUs that are isolated and don't > + participate in load balancing. These CPUs are set by > + boot parameter "isolcpus=". These should be two different entries, not one please. thanks, greg k-h