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-rw-r--r--block/blk-settings.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c
index b4aa2f37fab6..f9937dd2810e 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -103,28 +103,17 @@ EXPORT_SYMBOL(blk_set_stacking_limits);
void blk_queue_bounce_limit(struct request_queue *q, u64 max_addr)
{
unsigned long b_pfn = max_addr >> PAGE_SHIFT;
- int dma = 0;
- q->bounce_gfp = GFP_NOIO;
#if BITS_PER_LONG == 64
/*
* Assume anything <= 4GB can be handled by IOMMU. Actually
* some IOMMUs can handle everything, but I don't know of a
* way to test this here.
*/
- if (b_pfn < (min_t(u64, 0xffffffffUL, BLK_BOUNCE_HIGH) >> PAGE_SHIFT))
- dma = 1;
q->limits.bounce_pfn = max(max_low_pfn, b_pfn);
#else
- if (b_pfn < blk_max_low_pfn)
- dma = 1;
q->limits.bounce_pfn = b_pfn;
#endif
- if (dma) {
- init_emergency_isa_pool();
- q->bounce_gfp = GFP_NOIO | GFP_DMA;
- q->limits.bounce_pfn = b_pfn;
- }
}
EXPORT_SYMBOL(blk_queue_bounce_limit);