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vfio/type1: Add conditional rescheduling after iommu map failed 

Commit c5e6688752 ("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>
This commit is contained in:
Xiang Zheng 2020-07-27 13:43:37 -06:00 committed by Alex Williamson
parent bf3551e150
commit e1907d6752
1 changed files with 3 additions and 1 deletions
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4
drivers/vfio/vfio_iommu_type1.c
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@ -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;
}