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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_NEOMUTT autolearn=ham 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 CC465C5ACC6 for ; Tue, 16 Oct 2018 23:37:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 79FE02148C for ; Tue, 16 Oct 2018 23:37:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="FBZfa0wp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 79FE02148C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727426AbeJQH3w (ORCPT ); Wed, 17 Oct 2018 03:29:52 -0400 Received: from mail-pl1-f194.google.com ([209.85.214.194]:39876 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727208AbeJQH3w (ORCPT ); Wed, 17 Oct 2018 03:29:52 -0400 Received: by mail-pl1-f194.google.com with SMTP id e67-v6so2757082plb.6 for ; Tue, 16 Oct 2018 16:37:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=CtEotWFeutC+Xtyw9ElzbIiw7CxA+mEwYLk2XisPzoY=; b=FBZfa0wpaBNnrvJbFgA96VwNrl+jwXFdy3xEYOhkXB33fQELiRef3FMkZg7uhWfjpo xooUs2L5T+NNLcq67V2eTZ4mziLI3USkLRddDLNrZ6pEDhLtvwYpNFOLO6p5ePStmKrZ zbmG9z+fzXX2sc9b5xpDdR0jU20DnFJmGuWA8wAtvPwAZBnF2Uxal3TFIGGC2VrJ+6jv kFe47hNPu8nCntVgNQrNdr+NpvY9R1xshfDdO5wG06pTdYCTCh/aPFJIx+glxx6lLFPm tFzrhcrQb5IlsGAISbaoB2hcizdABxPOIahTNdyqPzxQc50UUtf7i9Sce9uzwqBsb0Gg kQPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=CtEotWFeutC+Xtyw9ElzbIiw7CxA+mEwYLk2XisPzoY=; b=KIWzjy/2WrMN2lcCOg22MoWDCeUWOl1psCG2l9wXVnBc7IZs4CCpO6sJ+O/DeSvcuz DiR8lJJZqCle01OaO2qPL4c9qFpg73HIfTkyb5Va6f2gTk7drkMfheYYhlDIpwnm4UPU mgLu8cW5VnQ5NnvFcUvlhXMFarIn4+yB+/4bgLN1AqPAiIA6Mku3TjwdFi5iyX9r2+eO m1BiC+WzsC7Xb236N8mdgaXZ0IaQdkaWy4kOocRL1JHzysdHc9s4NiloKeBWnSaUPj1f ZKy0MF8n1pREDx6yX/iokM3dm64fZPBclAm7cmOTj8Rr2aIT41YWh6r0us5M/WDxreP1 DMVw== X-Gm-Message-State: ABuFfogkI20ZMkhasUh4/gJZ4wqT7dAnjkfuxBAZ+5W2EPlUVnNUvytr Oj47VYYQx2fvrQ/5gmulFeQ= X-Google-Smtp-Source: ACcGV60yZlVC+BaYeso5mx1p72gzSRQoWNFMwG9aZZ+pIjlVttXAb/unZCBP7kQYGVnBxoqFbXIdEg== X-Received: by 2002:a17:902:bcc3:: with SMTP id o3-v6mr23704916pls.66.1539733027368; Tue, 16 Oct 2018 16:37:07 -0700 (PDT) Received: from localhost (c-24-4-232-171.hsd1.ca.comcast.net. [24.4.232.171]) by smtp.gmail.com with ESMTPSA id o2-v6sm15525832pgp.82.2018.10.16.16.37.06 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 16 Oct 2018 16:37:06 -0700 (PDT) Date: Tue, 16 Oct 2018 16:37:04 -0700 From: Richard Cochran To: Jonathan Corbet Cc: Frederic Weisbecker , LKML , Sebastian Andrzej Siewior , Peter Zijlstra , "David S . Miller" , Linus Torvalds , Thomas Gleixner , "Paul E . McKenney" , Ingo Molnar , Frederic Weisbecker , Mauro Carvalho Chehab Subject: Re: [RFC PATCH 00/30] softirq: Make softirqs soft-interruptible (+ per vector disablement) Message-ID: <20181016233704.7foq5jxvi5mn57jd@localhost> References: <1539213137-13953-1-git-send-email-frederic@kernel.org> <20181016160359.5523ae90@lwn.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181016160359.5523ae90@lwn.net> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 16, 2018 at 04:03:59PM -0600, Jonathan Corbet wrote: > I have to ask a dumb question, though. Might it not be better to add a > new set of functions like: > > local_softirq_disable(mask); > spin_lock_softirq(lock, mask); > > Then just define the existing functions to call the new ones with > SOFTIRQ_ALL_MASK? It would achieve something like the same result with > far less churn and conflict potential; then individual call sites could be > changed at leisure? I was thinking the exact same thing... Thanks, Richard