[PATCH] IB/mthca: Use dma_alloc_coherent instead of pci_alloc_consistent
Switch all allocations of coherent memory from pci_alloc_consistent() to
dma_alloc_coherent(), so that we can pass GFP_KERNEL. This should help when
the system is low on memory.
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index ca73bab..031f690 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -934,7 +934,8 @@
mthca_dbg(dev, "Creating direct QP of size %d (shift %d)\n",
size, shift);
- qp->queue.direct.buf = pci_alloc_consistent(dev->pdev, size, &t);
+ qp->queue.direct.buf = dma_alloc_coherent(&dev->pdev->dev, size,
+ &t, GFP_KERNEL);
if (!qp->queue.direct.buf)
goto err_out;
@@ -973,7 +974,8 @@
for (i = 0; i < npages; ++i) {
qp->queue.page_list[i].buf =
- pci_alloc_consistent(dev->pdev, PAGE_SIZE, &t);
+ dma_alloc_coherent(&dev->pdev->dev, PAGE_SIZE,
+ &t, GFP_KERNEL);
if (!qp->queue.page_list[i].buf)
goto err_out_free;
@@ -996,16 +998,15 @@
err_out_free:
if (qp->is_direct) {
- pci_free_consistent(dev->pdev, size,
- qp->queue.direct.buf,
- pci_unmap_addr(&qp->queue.direct, mapping));
+ dma_free_coherent(&dev->pdev->dev, size, qp->queue.direct.buf,
+ pci_unmap_addr(&qp->queue.direct, mapping));
} else
for (i = 0; i < npages; ++i) {
if (qp->queue.page_list[i].buf)
- pci_free_consistent(dev->pdev, PAGE_SIZE,
- qp->queue.page_list[i].buf,
- pci_unmap_addr(&qp->queue.page_list[i],
- mapping));
+ dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
+ qp->queue.page_list[i].buf,
+ pci_unmap_addr(&qp->queue.page_list[i],
+ mapping));
}