Message ID | 20230320144356.803762-17-robdclark@gmail.com (mailing list archive) |
---|---|
State | Not Applicable |
Headers | show
Return-Path: <linux-arm-msm-owner@vger.kernel.org> 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 A7894C761AF for <linux-arm-msm@archiver.kernel.org>; Mon, 20 Mar 2023 14:46:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231961AbjCTOqT (ORCPT <rfc822;linux-arm-msm@archiver.kernel.org>); Mon, 20 Mar 2023 10:46:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231913AbjCTOpy (ORCPT <rfc822;linux-arm-msm@vger.kernel.org>); Mon, 20 Mar 2023 10:45:54 -0400 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8F301CBC0; Mon, 20 Mar 2023 07:45:06 -0700 (PDT) Received: by mail-pj1-x1034.google.com with SMTP id e15-20020a17090ac20f00b0023d1b009f52so16745718pjt.2; Mon, 20 Mar 2023 07:45:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1679323506; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ETBxoAbrNslCbg8f3yN7x2XxTKk/U7inb50D/YGBCKI=; b=AhmyuHGG/8/igp1P9vAPy7ZPfETRY0TeHFg6mYwFSEp4TLgeIwiFdiaf87Ez+cq6wm C0AW68YtTAXKI9AjPeHGpqoOKDOJViRoc8P16XiAr8I0ETNoavUX0aN2VHu+L3I9EpAx 94JZm4mKBNIp2ZQQhCmhmIZ27ex95EPXwwPo+NBFflXpuSJp8pFQ/0voEc1oCOpHxoni 8ULQEqZIlQ/lAaBa+oSmDtiumvwxw3FoD1C5KzD46aL5yq6V/jfmsoA6q9c/g0UnjK9Q +ppWuOEEO16lI8FMgRLUeqiUz80fjx84GrCxTDpQrCeJtaFq7ZgM+N/oZ2y/H2BMqU2+ UzSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679323506; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ETBxoAbrNslCbg8f3yN7x2XxTKk/U7inb50D/YGBCKI=; b=KEvqarqcrvlBApjWBE72fLKpENpHDpvn2MVPvp2Hi+64Swsd19Cg6oCfmBSMSUYJ52 OS3p266Ztq/vE0tFzr0gQlw1/9pbyi1dqHRR4OSprxH9gdL+fSdi4YSq+Y2MZtqb3X5j wRMAudID0EUcGzqQar3CBTov7Gh3Vd2Zk+r4ukh2gLDkw7jxoL419I0g8qzS+QCIMBhk c6a5vP6C1R6yyuDojzruDyp+mP4gG/DO1K/TCt5ZzNeRNPLNyvexnOyWKDl5mpOGb7m1 4q4NSAef2LzHe//Qdz7M8iHVMqwrnl9XcZ2NrQFE/YhMXtwipek6dHWG+D3xni/dvaPe ocSQ== X-Gm-Message-State: AO0yUKUa7ihIEq3B9haywr+Bxc9m336hX4xygtAb0AeB7e6iITPNQPxd omzTZKNLKwg92Eil4VNJLiE= X-Google-Smtp-Source: AK7set9nBsw0YboqA8HGtkhw/1efSi+yfRsWBIzz4ldlha0ygO0WznYR00bgmoDEmsF5J6m1TLVXgQ== X-Received: by 2002:a17:903:280c:b0:1a1:adb0:ed72 with SMTP id kp12-20020a170903280c00b001a1adb0ed72mr9170835plb.4.1679323506157; Mon, 20 Mar 2023 07:45:06 -0700 (PDT) Received: from localhost ([2a00:79e1:abd:4a00:61b:48ed:72ab:435b]) by smtp.gmail.com with ESMTPSA id 17-20020a170902ee5100b0019339f3368asm6853516plo.3.2023.03.20.07.45.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Mar 2023 07:45:05 -0700 (PDT) From: Rob Clark <robdclark@gmail.com> To: dri-devel@lists.freedesktop.org Cc: Daniel Vetter <daniel@ffwll.ch>, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, Rob Clark <robdclark@chromium.org>, MyungJoo Ham <myungjoo.ham@samsung.com>, Kyungmin Park <kyungmin.park@samsung.com>, Chanwoo Choi <cw00.choi@samsung.com>, linux-pm@vger.kernel.org (open list:DEVICE FREQUENCY (DEVFREQ)), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 16/23] PM / devfreq: Teach lockdep about locking order Date: Mon, 20 Mar 2023 07:43:38 -0700 Message-Id: <20230320144356.803762-17-robdclark@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230320144356.803762-1-robdclark@gmail.com> References: <20230320144356.803762-1-robdclark@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: <linux-arm-msm.vger.kernel.org> X-Mailing-List: linux-arm-msm@vger.kernel.org |
Series |
drm/msm+PM+icc: Make job_run() reclaim-safe
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expand
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diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 11b774048bd2..5ce3bf9b59e7 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -817,6 +817,12 @@ struct devfreq *devfreq_add_device(struct device *dev, } mutex_init(&devfreq->lock); + + /* Teach lockdep about lock ordering wrt. shrinker: */ + fs_reclaim_acquire(GFP_KERNEL); + might_lock(&devfreq->lock); + fs_reclaim_release(GFP_KERNEL); + devfreq->dev.parent = dev; devfreq->dev.class = devfreq_class; devfreq->dev.release = devfreq_dev_release;