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=-20.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS 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 694AFC43381 for ; Wed, 17 Mar 2021 15:50:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2BDB764E02 for ; Wed, 17 Mar 2021 15:50:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232574AbhCQPtx (ORCPT ); Wed, 17 Mar 2021 11:49:53 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:51114 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232342AbhCQPs6 (ORCPT ); Wed, 17 Mar 2021 11:48:58 -0400 Date: Wed, 17 Mar 2021 15:48:56 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1615996136; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uChDpxew2+79uMtMLPxMuDbUdvkettPqFvkGVNo2R+E=; b=UXu8LHqI2c23594lL0DjE7EXk6gZB7SOLS2BOqw0TN5RagSm/w3SKbEY4NAPt29dku3F7N lCLkrY5TskSeVhVnkFEa49bdFmBGS1BSLWbadD5MRnVoqvAaGyGpz6de6QEt9+Vw4n7VcK zfCdDRV2CyuMBv86xvl0Ja06aB4b29zFvWvA/KFyaAzsLB3D95dYkvPoCLH+/8ic7lahcy KNIyASJzKOylqpA736CU25T5O+lLtFFk8hf/zMviobdlv2DlcbZ2O6G160p2W9Vb9EQZAh fn9HKtStOd/X6QdWFN8B6ymgyLU9YmQqNWt+G5sdw9OIr1RC6BoPNJpBxqJGpw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1615996136; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uChDpxew2+79uMtMLPxMuDbUdvkettPqFvkGVNo2R+E=; b=xKQ1tCUvXTLrBAvEXsAKW2VI6U2PXVghqk9t0ox7h7LMImrV7fN3AgtINp3jD7AhQu+7ho lvyc5/kcvwCX/QDg== From: "tip-bot2 for Sebastian Andrzej Siewior" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: irq/core] PCI: hv: Use tasklet_disable_in_atomic() Cc: Sebastian Andrzej Siewior , Thomas Gleixner , Wei Liu , Bjorn Helgaas , "Peter Zijlstra (Intel)" , x86@kernel.org, linux-kernel@vger.kernel.org, maz@kernel.org In-Reply-To: <20210309084242.516519290@linutronix.de> References: <20210309084242.516519290@linutronix.de> MIME-Version: 1.0 Message-ID: <161599613604.398.12732595162252073123.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the irq/core branch of tip: Commit-ID: be4017cea0aec6369275df7eafbb09682f810e7e Gitweb: https://git.kernel.org/tip/be4017cea0aec6369275df7eafbb09682f810e7e Author: Sebastian Andrzej Siewior AuthorDate: Tue, 09 Mar 2021 09:42:15 +01:00 Committer: Thomas Gleixner CommitterDate: Wed, 17 Mar 2021 16:34:03 +01:00 PCI: hv: Use tasklet_disable_in_atomic() The hv_compose_msi_msg() callback in irq_chip::irq_compose_msi_msg is invoked via irq_chip_compose_msi_msg(), which itself is always invoked from atomic contexts from the guts of the interrupt core code. There is no way to change this w/o rewriting the whole driver, so use tasklet_disable_in_atomic() which allows to make tasklet_disable() sleepable once the remaining atomic users are addressed. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Thomas Gleixner Acked-by: Wei Liu Acked-by: Bjorn Helgaas Acked-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/20210309084242.516519290@linutronix.de --- drivers/pci/controller/pci-hyperv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 27a17a1..a313708 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -1458,7 +1458,7 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) * Prevents hv_pci_onchannelcallback() from running concurrently * in the tasklet. */ - tasklet_disable(&channel->callback_event); + tasklet_disable_in_atomic(&channel->callback_event); /* * Since this function is called with IRQ locks held, can't