diff options
| author | Xiang Zheng <zhengxiang9@huawei.com> | 2020-07-27 13:43:37 -0600 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-07-27 13:43:37 -0600 |
| commit | e1907d6752a26ccfcda1573b5a7542b056553046 (patch) | |
| tree | 12970757490d86870bc444c1300551dd912cfc98 /drivers/vfio | |
| parent | bf3551e150e5a231ac60f2bd750f63ab5484010a (diff) | |
| download | linux-e1907d6752a26ccfcda1573b5a7542b056553046.tar.gz | |
vfio/type1: Add conditional rescheduling after iommu map failed
Commit c5e6688752c2 ("vfio/type1: Add conditional rescheduling")
missed a "cond_resched()" in vfio_iommu_map if iommu map failed.
This is a very tiny optimization and the case can hardly happen.
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/vfio_iommu_type1.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index 5e556ac9102a..48fb9cc4a40a 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -1225,8 +1225,10 @@ static int vfio_iommu_map(struct vfio_iommu *iommu, dma_addr_t iova, return 0; unwind: - list_for_each_entry_continue_reverse(d, &iommu->domain_list, next) + list_for_each_entry_continue_reverse(d, &iommu->domain_list, next) { iommu_unmap(d->domain, iova, npage << PAGE_SHIFT); + cond_resched(); + } return ret; } |