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netpoll: use GFP_ATOMIC in slave_enable_netpoll() and __netpoll_setup()

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slave_enable_netpoll() and __netpoll_setup() may be called
with read_lock() held, so should use GFP_ATOMIC to allocate
memory. Eric suggested to pass gfp flags to __netpoll_setup().

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amerigo Wang
2012-08-10 01:24:37 +00:00
committed by David S. Miller
parent ddf343f635
commit 47be03a28c
9 changed files with 32 additions and 28 deletions
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2
net/bridge/br_if.c
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@@ -361,7 +361,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
if (err)
goto err2;
if (br_netpoll_info(br) && ((err = br_netpoll_enable(p))))
if (br_netpoll_info(br) && ((err = br_netpoll_enable(p, GFP_KERNEL))))
goto err3;
err = netdev_set_master(dev, br->dev);