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| author | David S. Miller <davem@davemloft.net> | 2015-11-01 07:15:30 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-11-01 07:15:30 +0300 |
| commit | b75ec3af27bf011a760e2f44eb25a99b6fbb0fb3 (patch) | |
| tree | 89f4fbab2c6194b32a46eb771c4b158585bf0bb5 /drivers/iommu/amd_iommu_v2.c | |
| parent | e7b63ff115f21ea6c609cbb08f3d489af627af6e (diff) | |
| parent | 523e13455ec9ec4457a5a1d24ff7132949742b70 (diff) | |
| download | linux-b75ec3af27bf011a760e2f44eb25a99b6fbb0fb3.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/iommu/amd_iommu_v2.c')
| -rw-r--r-- | drivers/iommu/amd_iommu_v2.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c index 1131664b918b..d21d4edf7236 100644 --- a/drivers/iommu/amd_iommu_v2.c +++ b/drivers/iommu/amd_iommu_v2.c @@ -516,6 +516,13 @@ static void do_fault(struct work_struct *work) goto out; } + if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE))) { + /* handle_mm_fault would BUG_ON() */ + up_read(&mm->mmap_sem); + handle_fault_error(fault); + goto out; + } + ret = handle_mm_fault(mm, vma, address, write); if (ret & VM_FAULT_ERROR) { /* failed to service fault */ |