tree 1b7adfd5d18587f90bca216b130c069bda53cf8b
parent bc48bc806442114ea44f61d6b18e02c2bd6236fd
author Eric Dumazet <edumazet@google.com> 1394175472 -0800
committer David S. Miller <davem@davemloft.net> 1394482672 -0400

pkt_sched: fq: do not hold qdisc lock while allocating memory

Resizing fq hash table allocates memory while holding qdisc spinlock,
with BH disabled.

This is definitely not good, as allocation might sleep.

We can drop the lock and get it when needed, we hold RTNL so no other
changes can happen at the same time.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: afe4fd062416 ("pkt_sched: fq: Fair Queue packet scheduler")
Signed-off-by: David S. Miller <davem@davemloft.net>