Switch all the uses of vmalloc in the e1000 driver to virtual compounds. This will result in the use of regular memory for the ring buffers etc avoiding page tables, Signed-off-by: Christoph Lameter --- drivers/net/e1000/e1000_main.c | 23 +++++++++++------------ drivers/net/e1000e/netdev.c | 12 ++++++------ 2 files changed, 17 insertions(+), 18 deletions(-) Index: linux-2.6.25-rc5-mm1/drivers/net/e1000e/netdev.c =================================================================== --- linux-2.6.25-rc5-mm1.orig/drivers/net/e1000e/netdev.c 2008-03-20 21:52:45.962733927 -0700 +++ linux-2.6.25-rc5-mm1/drivers/net/e1000e/netdev.c 2008-03-20 21:57:27.212078371 -0700 @@ -1083,7 +1083,7 @@ int e1000e_setup_tx_resources(struct e10 int err = -ENOMEM, size; size = sizeof(struct e1000_buffer) * tx_ring->count; - tx_ring->buffer_info = vmalloc(size); + tx_ring->buffer_info = __alloc_vcompound(GFP_KERNEL, get_order(size)); if (!tx_ring->buffer_info) goto err; memset(tx_ring->buffer_info, 0, size); @@ -1102,7 +1102,7 @@ int e1000e_setup_tx_resources(struct e10 return 0; err: - vfree(tx_ring->buffer_info); + __free_vcompound(tx_ring->buffer_info); ndev_err(adapter->netdev, "Unable to allocate memory for the transmit descriptor ring\n"); return err; @@ -1121,7 +1121,7 @@ int e1000e_setup_rx_resources(struct e10 int i, size, desc_len, err = -ENOMEM; size = sizeof(struct e1000_buffer) * rx_ring->count; - rx_ring->buffer_info = vmalloc(size); + rx_ring->buffer_info = __alloc_vcompound(GFP_KERNEL, get_order(size)); if (!rx_ring->buffer_info) goto err; memset(rx_ring->buffer_info, 0, size); @@ -1157,7 +1157,7 @@ err_pages: kfree(buffer_info->ps_pages); } err: - vfree(rx_ring->buffer_info); + __free_vcompound(rx_ring->buffer_info); ndev_err(adapter->netdev, "Unable to allocate memory for the transmit descriptor ring\n"); return err; @@ -1204,7 +1204,7 @@ void e1000e_free_tx_resources(struct e10 e1000_clean_tx_ring(adapter); - vfree(tx_ring->buffer_info); + __free_vcompound(tx_ring->buffer_info); tx_ring->buffer_info = NULL; dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc, @@ -1231,7 +1231,7 @@ void e1000e_free_rx_resources(struct e10 kfree(rx_ring->buffer_info[i].ps_pages); } - vfree(rx_ring->buffer_info); + __free_vcompound(rx_ring->buffer_info); rx_ring->buffer_info = NULL; dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc, Index: linux-2.6.25-rc5-mm1/drivers/net/e1000/e1000_main.c =================================================================== --- linux-2.6.25-rc5-mm1.orig/drivers/net/e1000/e1000_main.c 2008-03-20 22:06:14.462252441 -0700 +++ linux-2.6.25-rc5-mm1/drivers/net/e1000/e1000_main.c 2008-03-20 22:08:46.582009872 -0700 @@ -1609,14 +1609,13 @@ e1000_setup_tx_resources(struct e1000_ad int size; size = sizeof(struct e1000_buffer) * txdr->count; - txdr->buffer_info = vmalloc(size); + txdr->buffer_info = __alloc_vcompound(GFP_KERNEL | __GFP_ZERO, + get_order(size)); if (!txdr->buffer_info) { DPRINTK(PROBE, ERR, "Unable to allocate memory for the transmit descriptor ring\n"); return -ENOMEM; } - memset(txdr->buffer_info, 0, size); - /* round up to nearest 4K */ txdr->size = txdr->count * sizeof(struct e1000_tx_desc); @@ -1625,7 +1624,7 @@ e1000_setup_tx_resources(struct e1000_ad txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma); if (!txdr->desc) { setup_tx_desc_die: - vfree(txdr->buffer_info); + __free_vcompound(txdr->buffer_info); DPRINTK(PROBE, ERR, "Unable to allocate memory for the transmit descriptor ring\n"); return -ENOMEM; @@ -1653,7 +1652,7 @@ setup_tx_desc_die: DPRINTK(PROBE, ERR, "Unable to allocate aligned memory " "for the transmit descriptor ring\n"); - vfree(txdr->buffer_info); + __free_vcompound(txdr->buffer_info); return -ENOMEM; } else { /* Free old allocation, new allocation was successful */ @@ -1826,7 +1825,7 @@ e1000_setup_rx_resources(struct e1000_ad int size, desc_len; size = sizeof(struct e1000_buffer) * rxdr->count; - rxdr->buffer_info = vmalloc(size); + rxdr->buffer_info = __alloc_vcompound(GFP_KERNEL, size); if (!rxdr->buffer_info) { DPRINTK(PROBE, ERR, "Unable to allocate memory for the receive descriptor ring\n"); @@ -1837,7 +1836,7 @@ e1000_setup_rx_resources(struct e1000_ad rxdr->ps_page = kcalloc(rxdr->count, sizeof(struct e1000_ps_page), GFP_KERNEL); if (!rxdr->ps_page) { - vfree(rxdr->buffer_info); + __free_vcompound(rxdr->buffer_info); DPRINTK(PROBE, ERR, "Unable to allocate memory for the receive descriptor ring\n"); return -ENOMEM; @@ -1847,7 +1846,7 @@ e1000_setup_rx_resources(struct e1000_ad sizeof(struct e1000_ps_page_dma), GFP_KERNEL); if (!rxdr->ps_page_dma) { - vfree(rxdr->buffer_info); + __free_vcompound(rxdr->buffer_info); kfree(rxdr->ps_page); DPRINTK(PROBE, ERR, "Unable to allocate memory for the receive descriptor ring\n"); @@ -1870,7 +1869,7 @@ e1000_setup_rx_resources(struct e1000_ad DPRINTK(PROBE, ERR, "Unable to allocate memory for the receive descriptor ring\n"); setup_rx_desc_die: - vfree(rxdr->buffer_info); + __free_vcompound(rxdr->buffer_info); kfree(rxdr->ps_page); kfree(rxdr->ps_page_dma); return -ENOMEM; @@ -2175,7 +2174,7 @@ e1000_free_tx_resources(struct e1000_ada e1000_clean_tx_ring(adapter, tx_ring); - vfree(tx_ring->buffer_info); + __free_vcompound(tx_ring->buffer_info); tx_ring->buffer_info = NULL; pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma); @@ -2283,9 +2282,9 @@ e1000_free_rx_resources(struct e1000_ada e1000_clean_rx_ring(adapter, rx_ring); - vfree(rx_ring->buffer_info); + __free_vcompound(rx_ring->buffer_info); rx_ring->buffer_info = NULL; - kfree(rx_ring->ps_page); + __free_vcompound(rx_ring->ps_page); rx_ring->ps_page = NULL; kfree(rx_ring->ps_page_dma); rx_ring->ps_page_dma = NULL; -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/