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(parent: e3377f3) | patch
xen-netback: Timeout packets in RX path
authorZoltan Kiss <zoltan.kiss@citrix.com>
Thu, 6 Mar 2014 21:48:30 +0000 (21:48 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 7 Mar 2014 20:57:15 +0000 (15:57 -0500)
commit093507885ae5dc0288af07fbb922d2f85b3a88a6
treef9fef41eb8e9a433dd8e9f44b7d9d9ff9aa392c8tree | snapshot
parente3377f36ca20a034dce56335dc9b89f41094d845commit | diff
xen-netback: Timeout packets in RX path

A malicious or buggy guest can leave its queue filled indefinitely, in which
case qdisc start to queue packets for that VIF. If those packets came from an
another guest, it can block its slots and prevent shutdown. To avoid that, we
make sure the queue is drained in every 10 seconds.
The QDisc queue in worst case takes 3 round to flush usually.

Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/xen-netback/common.h diff | blob | blame | history
drivers/net/xen-netback/interface.c diff | blob | blame | history
drivers/net/xen-netback/netback.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)