121 lines
4.9 KiB
Diff
121 lines
4.9 KiB
Diff
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From sgruszka@redhat.com Mon Oct 18 05:10:00 2010
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Return-Path: sgruszka@redhat.com
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Mon, 18 Oct 2010 05:10:00 -0400 (EDT)
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Mon, 18 Oct 2010 05:09:59 -0400
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From: Stanislaw Gruszka <sgruszka@redhat.com>
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To: stable@kernel.org
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Cc: Kyle McMartin <kmcmartin@redhat.com>,
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Stanislaw Gruszka <sgruszka@redhat.com>,
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"David S. Miller" <davem@davemloft.net>
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Subject: [PATCH -stable 2.6.34+] r8169: allocate with GFP_KERNEL flag when able to sleep
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Date: Mon, 18 Oct 2010 11:12:22 +0200
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Message-Id: <1287393142-2566-1-git-send-email-sgruszka@redhat.com>
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X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23
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Upstream aeb19f6052b5e5c8a24aa444fbff73b84341beac commit.
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We have fedora bug report where driver fail to initialize after
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suspend/resume because of memory allocation errors:
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https://bugzilla.redhat.com/show_bug.cgi?id=629158
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To fix use GFP_KERNEL allocation where possible.
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Patch should fix any allocation errors with calltrace like that:
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NetworkManager: page allocation failure. order:3, mode:0x4020
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Pid: 1427, comm: NetworkManager Not tainted 2.6.31.12-rhapsody.fc12-121 #1
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Call Trace:
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[<ffffffff810c876f>] __alloc_pages_nodemask+0x57a/0x5bb
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[<ffffffff810f415d>] alloc_pages_node+0x48/0x4a
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[<ffffffff810f4189>] kmalloc_large_node+0x2a/0x67
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[<ffffffff810f5f1c>] __kmalloc_node_track_caller+0x31/0x11b
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[<ffffffff8136f4fe>] ? __netdev_alloc_skb+0x34/0x50
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[<ffffffff8136e8b8>] __alloc_skb+0x80/0x170
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[<ffffffff8136f4fe>] __netdev_alloc_skb+0x34/0x50
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[<ffffffffa011c5e0>] rtl8169_rx_fill+0xa8/0x154 [r8169]
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[<ffffffffa011e5c5>] rtl8169_init_ring+0x71/0x9f [r8169]
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[<ffffffffa011edbe>] rtl8169_open+0x7f/0x199 [r8169]
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Tested-by: Neal Becker <ndbecker2@gmail.com>
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Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
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Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/r8169.c | 12 ++++++------
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1 files changed, 6 insertions(+), 6 deletions(-)
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diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
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index a0da4a1..a68ec8f 100644
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--- a/drivers/net/r8169.c
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+++ b/drivers/net/r8169.c
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@@ -4000,7 +4000,7 @@ static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
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static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev,
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struct net_device *dev,
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struct RxDesc *desc, int rx_buf_sz,
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- unsigned int align)
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+ unsigned int align, gfp_t gfp)
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{
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struct sk_buff *skb;
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dma_addr_t mapping;
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@@ -4008,7 +4008,7 @@ static struct sk_buff *rtl8169_alloc_rx_skb(struct pci_dev *pdev,
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pad = align ? align : NET_IP_ALIGN;
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- skb = netdev_alloc_skb(dev, rx_buf_sz + pad);
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+ skb = __netdev_alloc_skb(dev, rx_buf_sz + pad, gfp);
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if (!skb)
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goto err_out;
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@@ -4039,7 +4039,7 @@ static void rtl8169_rx_clear(struct rtl8169_private *tp)
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}
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static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev,
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- u32 start, u32 end)
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+ u32 start, u32 end, gfp_t gfp)
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{
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u32 cur;
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@@ -4054,7 +4054,7 @@ static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev,
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skb = rtl8169_alloc_rx_skb(tp->pci_dev, dev,
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tp->RxDescArray + i,
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- tp->rx_buf_sz, tp->align);
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+ tp->rx_buf_sz, tp->align, gfp);
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if (!skb)
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break;
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@@ -4082,7 +4082,7 @@ static int rtl8169_init_ring(struct net_device *dev)
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memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
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memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *));
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- if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC)
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+ if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC, GFP_KERNEL) != NUM_RX_DESC)
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goto err_out;
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rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
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@@ -4583,7 +4583,7 @@ static int rtl8169_rx_interrupt(struct net_device *dev,
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count = cur_rx - tp->cur_rx;
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tp->cur_rx = cur_rx;
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- delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx);
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+ delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx, GFP_ATOMIC);
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if (!delta && count)
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netif_info(tp, intr, dev, "no Rx buffer allocated\n");
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tp->dirty_rx += delta;
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--
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1.7.1
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