From 2309bd793ead6d5e4ace611502aa87b3202856ca Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 22 Jul 2015 17:29:47 +0200 Subject: [PATCH] iommu/vt-d: Remove dmar_global_lock from device_notifier 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 0f258f0..d55ef9d 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4273,11 +4273,9 @@ 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; } -- 2.7.4