tree 097d2f21d367ae28eaa40fc5d1ee9519f8932687
parent 98b90f26651f9d84cfbb0221c9a3d9863c5bea69
author Veaceslav Falico <vfalico@redhat.com> 1390829852 +0100
committer David S. Miller <davem@davemloft.net> 1390857165 -0800

bonding: restructure locking of bond_ab_arp_probe()

Currently we're calling it from under RCU context, however we're using some
functions that require rtnl to be held.

Fix this by restructuring the locking - don't call it under any locks,
aquire rcu_read_lock() if we're sending _only_ (i.e. we have the active
slave present), and use rtnl locking otherwise - if we need to modify
(in)active flags of a slave.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>