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-rw-r--r--drivers/iommu/amd_iommu.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 39a2048a6cd2..c657e48f0aed 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -1633,8 +1633,7 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom,
return;
#endif
- if (amd_iommu_unmap_flush ||
- (address + pages > range->next_bit)) {
+ if (amd_iommu_unmap_flush) {
domain_flush_tlb(&dom->domain);
domain_flush_complete(&dom->domain);
}
@@ -1642,6 +1641,8 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom,
address = (address % APERTURE_RANGE_SIZE) >> PAGE_SHIFT;
spin_lock_irqsave(&range->bitmap_lock, flags);
+ if (address + pages > range->next_bit)
+ range->next_bit = address + pages;
bitmap_clear(range->bitmap, address, pages);
spin_unlock_irqrestore(&range->bitmap_lock, flags);