iova: Export alloc_iova_fast() and free_iova_fast()

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Export alloc_iova_fast() and free_iova_fast() so that
some modules can make use of the per-CPU cache to get
rid of rbtree spinlock in alloc_iova() and free_iova()
during IOVA allocation.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210831103634.33-2-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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Xie Yongji 2021-08-31 18:36:22 +08:00 • committed by Michael S. Tsirkin

parent 6105d1fe6f

commit a93a962669

1 changed files with 2 additions and 0 deletions

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drivers/iommu/iova.c

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