From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758589AbYLDRfS (ORCPT ); Thu, 4 Dec 2008 12:35:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758186AbYLDRcK (ORCPT ); Thu, 4 Dec 2008 12:32:10 -0500 Received: from outbound-va3.frontbridge.com ([216.32.180.16]:27818 "EHLO VA3EHSOBE005.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758009AbYLDRcI (ORCPT ); Thu, 4 Dec 2008 12:32:08 -0500 X-BigFish: VPS10(zzzzzzz32i43j68o) X-Spam-TCS-SCL: 7:0 X-WSS-ID: 0KBD4P6-04-YDJ-01 From: Joerg Roedel To: avi@redhat.com, mingo@redhat.com, dwmw2@infradead.org, gregkh@suse.de, weidong.han@intel.com CC: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Joerg Roedel Subject: [PATCH 05/19] AMD IOMMU: add domain id free function Date: Thu, 4 Dec 2008 18:31:42 +0100 Message-ID: <1228411916-22668-6-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.5.6.4 In-Reply-To: <20081204172142.GH12816@amd.com> References: <20081204172142.GH12816@amd.com> X-OriginalArrivalTime: 04 Dec 2008 17:31:57.0074 (UTC) FILETIME=[34CB6F20:01C95636] MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Impact: add code to release a domain id Signed-off-by: Joerg Roedel --- arch/x86/kernel/amd_iommu.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index bec34fd..b774638 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -568,6 +568,16 @@ static u16 domain_id_alloc(void) return id; } +static void domain_id_free(int id) +{ + unsigned long flags; + + write_lock_irqsave(&amd_iommu_devtable_lock, flags); + if (id > 0 && id < MAX_DOMAIN_ID) + __clear_bit(id, amd_iommu_pd_alloc_bitmap); + write_unlock_irqrestore(&amd_iommu_devtable_lock, flags); +} + /* * Used to reserve address ranges in the aperture (e.g. for exclusion * ranges. -- 1.5.6.4