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OpenCloudOS-Kernel
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ftmac100: use GFP_ATOMIC allocations where needed 

When running in softirq context, we should use GFP_ATOMIC allocations
instead of GFP_KERNEL ones.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Acked-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2011-03-14 15:40:39 -07:00 committed by David S. Miller
parent dcf4ae2dba
commit c05e7ac99c
1 changed files with 7 additions and 5 deletions
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12
drivers/net/ftmac100.c
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@ -80,7 +80,8 @@ struct ftmac100 {
struct mii_if_info mii;
};
static int ftmac100_alloc_rx_page(struct ftmac100 *priv, struct ftmac100_rxdes *rxdes);
static int ftmac100_alloc_rx_page(struct ftmac100 *priv,
struct ftmac100_rxdes *rxdes, gfp_t gfp);
/******************************************************************************
* internal functions (hardware register access)
@ -441,7 +442,7 @@ static bool ftmac100_rx_packet(struct ftmac100 *priv, int *processed)
skb->truesize += length;
__pskb_pull_tail(skb, min(length, 64));
ftmac100_alloc_rx_page(priv, rxdes);
ftmac100_alloc_rx_page(priv, rxdes, GFP_ATOMIC);
ftmac100_rx_pointer_advance(priv);
@ -659,13 +660,14 @@ static int ftmac100_xmit(struct ftmac100 *priv, struct sk_buff *skb,
/******************************************************************************
* internal functions (buffer)
*****************************************************************************/
static int ftmac100_alloc_rx_page(struct ftmac100 *priv, struct ftmac100_rxdes *rxdes)
static int ftmac100_alloc_rx_page(struct ftmac100 *priv,
struct ftmac100_rxdes *rxdes, gfp_t gfp)
{
struct net_device *netdev = priv->netdev;
struct page *page;
dma_addr_t map;
page = alloc_page(GFP_KERNEL);
page = alloc_page(gfp);
if (!page) {
if (net_ratelimit())
netdev_err(netdev, "failed to allocate rx page\n");
@ -736,7 +738,7 @@ static int ftmac100_alloc_buffers(struct ftmac100 *priv)
for (i = 0; i < RX_QUEUE_ENTRIES; i++) {
struct ftmac100_rxdes *rxdes = &priv->descs->rxdes[i];
if (ftmac100_alloc_rx_page(priv, rxdes))
if (ftmac100_alloc_rx_page(priv, rxdes, GFP_KERNEL))
goto err;
}