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author | Eric Dumazet | 2013-02-19 19:42:03 +0100 |
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committer | David S. Miller | 2013-02-19 20:33:55 +0100 |
commit | 303c07db487be59ae9fda10600ea65ca11c21497 (patch) | |
tree | 23a66e53bed3b6f8093d815890388b9057760bd9 /net/ipv4/ip_gre.c | |
parent | atl1c: restore buffer state (diff) | |
download | kernel-qcow2-linux-303c07db487be59ae9fda10600ea65ca11c21497.tar.gz kernel-qcow2-linux-303c07db487be59ae9fda10600ea65ca11c21497.tar.xz kernel-qcow2-linux-303c07db487be59ae9fda10600ea65ca11c21497.zip |
ppp: set qdisc_tx_busylock to avoid LOCKDEP splat
If a qdisc is installed on a ppp device, its possible to get
a lockdep splat under stress, because nested dev_queue_xmit() can
lock busylock a second time (on a different device, so its a false
positive)
Avoid this problem using a distinct lock_class_key for ppp
devices.
Reported-by: Yanko Kaneti <yaneti@declera.com>
Tested-by: Yanko Kaneti <yaneti@declera.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_gre.c')
0 files changed, 0 insertions, 0 deletions