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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,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 B8F6EC432BE for ; Wed, 4 Aug 2021 16:47:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9A51160238 for ; Wed, 4 Aug 2021 16:47:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239404AbhHDQrx (ORCPT ); Wed, 4 Aug 2021 12:47:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229798AbhHDQrw (ORCPT ); Wed, 4 Aug 2021 12:47:52 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 007F8C0613D5; Wed, 4 Aug 2021 09:47:39 -0700 (PDT) Date: Wed, 4 Aug 2021 18:47:35 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1628095657; 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: in-reply-to:in-reply-to:references:references; bh=UxPYxOF4A4JUP0r6M+S9tDc8uzqmIZFWGWT516RNpn8=; b=o9BnbFXXPzOZZ/x+VXt9pCIu3NyUqiCBTx7LLcRJyaYB4A3v0C/AqWQYv3mDJove6Ot+QF U0ldEhCZ7SoLHFK+qpmorw/014PQuDOYKAiukoaYhKl8CbYV9uLor1DWBwb44Sy8CFym+s 7bW5qLK4DfNwCuv8L5+uJ/hu05H8thLVzN5ljJm7paK0XZTwFTF3bhmSjromhlIx8JY41i Pyv5KU1rPctfC/wc+K9GQ7bGdyuuycA1MyFRntiubN6sAZzY2Tl/rqFMe9Q1JAb1GP1qbw FAeEOfcZWY4re92yz3cssmCzjilozcD4sx6RVclq+wGhmhOQYDgQM35R4nDTYw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1628095657; 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: in-reply-to:in-reply-to:references:references; bh=UxPYxOF4A4JUP0r6M+S9tDc8uzqmIZFWGWT516RNpn8=; b=ZLjcLvnMiKWbeqbfLvgOONa1DvU8L6n839OIwaXSFVM0pRo7WU7bE5gZpYoSv0b09FFOrd F59mW7PYjqlvCJBw== From: Sebastian Andrzej Siewior To: Jens Axboe Cc: Steven Rostedt , Peter Zijlstra , Daniel Wagner , Thomas Gleixner , LKML , linux-rt-users@vger.kernel.org Subject: Re: [ANNOUNCE] v5.14-rc4-rt4 Message-ID: <20210804164735.sq6sjejusa37abkw@linutronix.de> References: <4f549344-1040-c677-6a6a-53e243c5f364@kernel.dk> <20210804153308.oasahcxjmcw7vivo@linutronix.de> <20210804154743.niogqvnladdkfgi2@linutronix.de> <7c946918-ae0d-6195-6a78-b019f9bc1fd3@kernel.dk> <20210804155747.cwayhjsdjc4zaubd@linutronix.de> <20210804122029.6c5c837a@oasis.local.home> <4ffb8f7c-085c-f6cc-e308-3f75b24b8e47@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <4ffb8f7c-085c-f6cc-e308-3f75b24b8e47@kernel.dk> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021-08-04 10:22:59 [-0600], Jens Axboe wrote: > > In that regard, I do still consider those patches out-of-tree, which > they are. And while I'm more sympathetic to them compared to other > out-of-tree code as there's a long term plan to get it all in, it's > still out-of-tree. Best solution here is probably to just carry that > particular change in the RT patchset for now. So today in the morning I learned that there is a memory allocation in an IRQ-off section and now, a patch later, it is almost gone. So that makes me actually happy :) The spin_lock_irq() vs local_irq_disable() + spin_lock() is documented in Documentation/locking/locktypes.rst. That said I have no problem by carrying that patch in the RT-patchset and revisit it later. Sebastian