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powerpc/64s/iommu: Don't use atomic_ function on atomic64_t type

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Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201111110723.3148665-3-npiggin@gmail.com
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Nicholas Piggin 2020-11-11 21:07:22 +10:00 committed by Michael Ellerman
parent da481c4fe0
commit c33cd1ed60
1 changed files with 1 additions and 1 deletions
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arch/powerpc/mm/book3s64/iommu_api.c
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@ -263,7 +263,7 @@ long mm_iommu_put(struct mm_struct *mm, struct mm_iommu_table_group_mem_t *mem)
goto unlock_exit;
/* Are there still mappings? */
if (atomic_cmpxchg(&mem->mapped, 1, 0) != 1) {
if (atomic64_cmpxchg(&mem->mapped, 1, 0) != 1) {
++mem->used;
ret = -EBUSY;
goto unlock_exit;