ioat2,3: cacheline align software descriptor allocations

[net-next-2.6.git] / drivers / dma / ioat / dma_v2.c

diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index 460b7730133246d522cc6bb96321b4c0156109ac..fa3d6db6624cf31597e9f4099b4560edfc541de9 100644 (file)
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -399,11 +399,12 @@ static struct ioat_ring_ent *ioat2_alloc_ring_ent(struct dma_chan *chan, gfp_t f
                return NULL;
        memset(hw, 0, sizeof(*hw));
 
-       desc = kzalloc(sizeof(*desc), flags);
+       desc = kmem_cache_alloc(ioat2_cache, flags);
        if (!desc) {
                pci_pool_free(dma->dma_pool, hw, phys);
                return NULL;
        }
+       memset(desc, 0, sizeof(*desc));
 
        dma_async_tx_descriptor_init(&desc->txd, chan);
        desc->txd.tx_submit = ioat2_tx_submit_unlock;
@@ -418,7 +419,7 @@ static void ioat2_free_ring_ent(struct ioat_ring_ent *desc, struct dma_chan *cha
 
        dma = to_ioatdma_device(chan->device);
        pci_pool_free(dma->dma_pool, desc->hw, desc->txd.phys);
-       kfree(desc);
+       kmem_cache_free(ioat2_cache, desc);
 }
 
 static struct ioat_ring_ent **ioat2_alloc_ring(struct dma_chan *c, int order, gfp_t flags)