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-rw-r--r--arch/powerpc/kernel/iommu.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 24208cd00aef..57d6b85e9b96 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -296,6 +296,15 @@ again:
pass++;
goto again;
+ } else if (pass == tbl->nr_pools + 1) {
+ /* Last resort: try largepool */
+ spin_unlock(&pool->lock);
+ pool = &tbl->large_pool;
+ spin_lock(&pool->lock);
+ pool->hint = pool->start;
+ pass++;
+ goto again;
+
} else {
/* Give up */
spin_unlock_irqrestore(&(pool->lock), flags);