tree 3c31b603c04bad0bb51c19305488cc12140ff7cb
parent 191cdb3822e5df6b3c8b9f8cb8c4bf93f6cc90c7
author Wei Liu <wei.liu2@citrix.com> 1498036882 +0100
committer David S. Miller <davem@davemloft.net> 1498144542 -0400

xen-netback: correctly schedule rate-limited queues

Add a flag to indicate if a queue is rate-limited. Test the flag in
NAPI poll handler and avoid rescheduling the queue if true, otherwise
we risk locking up the host. The rescheduling will be done in the
timer callback function.

Reported-by: Jean-Louis Dupond <jean-louis@dupond.be>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Tested-by: Jean-Louis Dupond <jean-louis@dupond.be>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>