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(parent: ab79ad1) | patch
net: add a recursion limit in xmit path
authorEric Dumazet <eric.dumazet@gmail.com>
Wed, 29 Sep 2010 20:23:09 +0000 (13:23 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 29 Sep 2010 20:23:09 +0000 (13:23 -0700)
commit745e20f1b626b1be4b100af5d4bf7b3439392f8f
tree5067e0179167106856217f7c4ddc68b15ec93db8tree | snapshot
parentab79ad14a2d51e95f0ac3cef7cd116a57089ba82commit | diff
net: add a recursion limit in xmit path

As tunnel devices are going to be lockless, we need to make sure a
misconfigured machine wont enter an infinite loop.

Add a percpu variable, and limit to three the number of stacked xmits.

Reported-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/dev.c diff | blob | history
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