From patchwork Fri Nov 20 09:54:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 11919937 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 E4DCCC8300A for ; Fri, 20 Nov 2020 09:56:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A33762240C for ; Fri, 20 Nov 2020 09:56:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ffwll.ch header.i=@ffwll.ch header.b="cIig+mZb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727401AbgKTJ4N (ORCPT ); Fri, 20 Nov 2020 04:56:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727133AbgKTJ4N (ORCPT ); Fri, 20 Nov 2020 04:56:13 -0500 Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BE5EC0617A7 for ; Fri, 20 Nov 2020 01:56:11 -0800 (PST) Received: by mail-wm1-x344.google.com with SMTP id c198so7882110wmd.0 for ; Fri, 20 Nov 2020 01:56:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=65HrmNqKftUnE1asqIayt2cnQblLlYt2XJU4abNkW2c=; b=cIig+mZbWoziis9QAEDrcbFB/GOPYHBGkq8UJPfrMuHlRHA1uJlZUg8f7WhD8KenMR 81/gLvFGeeEBXJjDhsMMENeHrnWQTkCblsMZLAlIKI8XYReN/YfTx4TFLK4x62j8vMcv NMAQZYA3LmtaSpp4bf8bDO41FIZ2kz913tElM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=65HrmNqKftUnE1asqIayt2cnQblLlYt2XJU4abNkW2c=; b=ZCTtBca70+VlTk5rZEtTMDu7iZ94A5MYLVLXmo20v4fPdrEsfVgoLG0E/4lCYVLJxE EtF5NHWVE3Uyf6HG81irUc4aWu1IGnjBefU0RE7nF5IYpx6BWuN8ach4cfOk/F1LJBbm hScSxjXTe6igB/S/9KmfcCJ6hTs9cs+ODcBO8bHSU4bqbWsTT3YrFUTyi3stlZsr4/Zo TE8mHsG29E4cz5jnz9PGK0bil5SpbtIcQYZ6AQaWKW2QEOxioAYt/FgtlvERujmhntG3 lHSbM/FgoHDdaZ2SOv6kHbL6G/UKayqu0ep86aCpZn8YJaH++z/svjKzvzIMZPVrzrj9 /47w== X-Gm-Message-State: AOAM531OI1XajPK7M6NYg6nXPFuvpZ+bJy1lGhgqBdtlR16Djg4IpKOb wRs4XDX7xuPuYIZWiG+yZYHIew== X-Google-Smtp-Source: ABdhPJyxRsNqKBpDLy2jcbxhd6SI4PAi8++rl2ervW+Oj/NwJ6Q8RtMk6ldX7hjCBVGGsevXbc8h9w== X-Received: by 2002:a7b:c772:: with SMTP id x18mr9460582wmk.185.1605866170156; Fri, 20 Nov 2020 01:56:10 -0800 (PST) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id t9sm4500208wrr.49.2020.11.20.01.56.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Nov 2020 01:56:09 -0800 (PST) From: Daniel Vetter To: DRI Development Cc: Intel Graphics Development , linux-mm@kvack.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, LKML , Daniel Vetter Subject: [PATCH 0/3] mmu_notifier fs fs_reclaim lockdep annotations Date: Fri, 20 Nov 2020 10:54:41 +0100 Message-Id: <20201120095445.1195585-1-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hi all, I've finally gotten around to polish of my lockdep anntotation patches from a while ago: https://lore.kernel.org/dri-devel/20200610194101.1668038-1-daniel.vetter@ffwll.ch/ That patch has been in -mm for a few days already, but it immediately hit some issues with xfs. Changes since v2: - Now hopefully the bug that bombed xfs fixed. - With unit-tests (that's the part I really wanted and never got to) - might_alloc() helper thrown in for good. The unit test stuff was the major drag until I figured out how to make this very easy with the locking selftests. Comments, review, testing all very much welcome. Cheers, Daniel Daniel Vetter (3): mm: Track mmu notifiers in fs_reclaim_acquire/release mm: Extract might_alloc() debug check locking/selftests: Add testcases for fs_reclaim include/linux/sched/mm.h | 16 ++++++++++++++ lib/locking-selftest.c | 47 ++++++++++++++++++++++++++++++++++++++++ mm/mmu_notifier.c | 7 ------ mm/page_alloc.c | 31 ++++++++++++++++---------- mm/slab.h | 5 +---- mm/slob.c | 6 ++--- 6 files changed, 86 insertions(+), 26 deletions(-)