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| author | Pavel Machek <pavel@ucw.cz> | 2015-12-04 09:50:00 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-01-22 20:54:11 -0800 |
| commit | e4907d0a5567efbe2fe2e31d372a3e72d1f7f871 (patch) | |
| tree | 1a334acedc18f6e5df7ccab18974945ef4112716 | |
| parent | 5bb18eb6e464694ca851bd9b86d64ab747ecbcbd (diff) | |
| download | lwn-e4907d0a5567efbe2fe2e31d372a3e72d1f7f871.tar.gz lwn-e4907d0a5567efbe2fe2e31d372a3e72d1f7f871.zip | |
atl1c: Improve driver not to do order 4 GFP_ATOMIC allocation
[ Upstream commit f2a3771ae8aca879c32336c76ad05a017629bae2 ]
atl1c driver is doing order-4 allocation with GFP_ATOMIC
priority. That often breaks networking after resume. Switch to
GFP_KERNEL. Still not ideal, but should be significantly better.
atl1c_setup_ring_resources() is called from .open() function, and
already uses GFP_KERNEL, so this change is safe.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index 932bd1862f7a..6e9036a06515 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -1014,13 +1014,12 @@ static int atl1c_setup_ring_resources(struct atl1c_adapter *adapter) sizeof(struct atl1c_recv_ret_status) * rx_desc_count + 8 * 4; - ring_header->desc = pci_alloc_consistent(pdev, ring_header->size, - &ring_header->dma); + ring_header->desc = dma_zalloc_coherent(&pdev->dev, ring_header->size, + &ring_header->dma, GFP_KERNEL); if (unlikely(!ring_header->desc)) { - dev_err(&pdev->dev, "pci_alloc_consistend failed\n"); + dev_err(&pdev->dev, "could not get memory for DMA buffer\n"); goto err_nomem; } - memset(ring_header->desc, 0, ring_header->size); /* init TPD ring */ tpd_ring[0].dma = roundup(ring_header->dma, 8); |