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: 11919973 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=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 86D8FC5519F for ; Fri, 20 Nov 2020 09:56:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EB3482240C for ; Fri, 20 Nov 2020 09:56:12 +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 S1727118AbgKTJ4M (ORCPT ); Fri, 20 Nov 2020 04:56:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727043AbgKTJ4L (ORCPT ); Fri, 20 Nov 2020 04:56:11 -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 8547AC061A04 for ; Fri, 20 Nov 2020 01:56:11 -0800 (PST) Received: by mail-wm1-x344.google.com with SMTP id d142so9767814wmd.4 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=LEnnibfwfBioQa7gXripETCOwy6sFTvumzwH5P0d63Yl482rJNl6S7usdtD/ojPWQf zkSVexFcVaM+ed4amsXcAEiwtBtM/XDZeeXL4uyeoeobenqjll/9sKFnCnz4tEVKbiec Gsn+qnTju7BIK4bJZZ1rQHWBM7hyZxPro/Q8FcA9aGid+vpDrCiyFHsui8Tz2PLD04y1 KGYXqIufUxY7xTbpFaTGGYMcmQhmv/YSxHkG1e3La600ZrIn+L9OPs7j0/LJBibS1cup oAFav7NEO3vO4Vop+AUeKR9xkXroiIfhiEXJxqwcHnBL2eKZegLOiq8E9rdSLqSH7zh0 qnjQ== X-Gm-Message-State: AOAM5336ZMD8AvD+FaNE0PfiIlkOkh6lJRW/CT/US/rWtVvkspA+Sgxp 9+ej82esdR6l/P+m4ZwjJKSccA== 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-xfs@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(-)