From: Eric Dumazet edumazet@google.com
[ Upstream commit afe207d80a61e4d6e7cfa0611a4af46d0ba95628 ]
Commit e18b353f102e ("ipvlan: add cond_resched_rcu() while processing muticast backlog") added a cond_resched_rcu() in a loop using rcu protection to iterate over slaves.
This is breaking rcu rules, so lets instead use cond_resched() at a point we can reschedule
Fixes: e18b353f102e ("ipvlan: add cond_resched_rcu() while processing muticast backlog") Signed-off-by: Eric Dumazet edumazet@google.com Cc: Mahesh Bandewar maheshb@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ipvlan/ipvlan_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ipvlan/ipvlan_core.c +++ b/drivers/net/ipvlan/ipvlan_core.c @@ -282,7 +282,6 @@ void ipvlan_process_multicast(struct wor } ipvlan_count_rx(ipvlan, len, ret == NET_RX_SUCCESS, true); local_bh_enable(); - cond_resched_rcu(); } rcu_read_unlock();
@@ -299,6 +298,7 @@ void ipvlan_process_multicast(struct wor } if (dev) dev_put(dev); + cond_resched(); } }