From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753397AbbHEPb2 (ORCPT ); Wed, 5 Aug 2015 11:31:28 -0400 Received: from 8bytes.org ([81.169.241.247]:43052 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753253AbbHEPTX (ORCPT ); Wed, 5 Aug 2015 11:19:23 -0400 From: Joerg Roedel To: iommu@lists.linux-foundation.org Cc: David Woodhouse , Alex Williamson , linux-kernel@vger.kernel.org, Joerg Roedel , jroedel@suse.de Subject: [PATCH 23/26] iommu/vt-d: Remove dmar_global_lock from device_notifier Date: Wed, 5 Aug 2015 17:18:54 +0200 Message-Id: <1438787937-7340-24-git-send-email-joro@8bytes.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1438787937-7340-1-git-send-email-joro@8bytes.org> References: <1438787937-7340-1-git-send-email-joro@8bytes.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joerg Roedel The code in the locked section does not touch anything protected by the dmar_global_lock. Remove it from there. Signed-off-by: Joerg Roedel --- drivers/iommu/intel-iommu.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 1a9ecfe..624e0a2 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4272,11 +4272,9 @@ static int device_notifier(struct notifier_block *nb, if (!domain) return 0; - down_read(&dmar_global_lock); dmar_remove_one_dev_info(domain, dev); if (!domain_type_is_vm_or_si(domain) && list_empty(&domain->devices)) domain_exit(domain); - up_read(&dmar_global_lock); return 0; } -- 1.9.1