diff options
Diffstat (limited to 'drivers/iommu/amd/io_pgtable_v2.c')
| -rw-r--r-- | drivers/iommu/amd/io_pgtable_v2.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/amd/io_pgtable_v2.c b/drivers/iommu/amd/io_pgtable_v2.c index 25b9042fa453..c616de2c5926 100644 --- a/drivers/iommu/amd/io_pgtable_v2.c +++ b/drivers/iommu/amd/io_pgtable_v2.c @@ -268,8 +268,11 @@ static int iommu_v2_map_pages(struct io_pgtable_ops *ops, unsigned long iova, out: if (updated) { struct protection_domain *pdom = io_pgtable_ops_to_domain(ops); + unsigned long flags; + spin_lock_irqsave(&pdom->lock, flags); amd_iommu_domain_flush_pages(pdom, o_iova, size); + spin_unlock_irqrestore(&pdom->lock, flags); } if (mapped) |