Merge tag 'iommu-drivers-move-v5.8' of git://git.kernel.org/pub/scm/linux/kernel...

[people/ms/linux.git] / drivers / iommu / intel / svm.c

diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index a035ef911fba789dd206cbadd1cbdac96cf3d217..6c87c807a0abb8e3527a996d3d9ba88fd52456fe 100644 (file)
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -863,7 +863,7 @@ static irqreturn_t prq_event_thread(int irq, void *d)
                if (!mmget_not_zero(svm->mm))
                        goto bad_req;
 
-               down_read(&svm->mm->mmap_sem);
+               mmap_read_lock(svm->mm);
                vma = find_extend_vma(svm->mm, address);
                if (!vma || address < vma->vm_start)
                        goto invalid;
@@ -878,7 +878,7 @@ static irqreturn_t prq_event_thread(int irq, void *d)
 
                result = QI_RESP_SUCCESS;
        invalid:
-               up_read(&svm->mm->mmap_sem);
+               mmap_read_unlock(svm->mm);
                mmput(svm->mm);
        bad_req:
                /* Accounting for major/minor faults? */