On 21/09/2017 10:50, Alexey Kardashevskiy wrote:
> * since FlatView::rcu is used now to dispose FV, call_rcu() in
> address_space_update_topology() is replaced with direct call to
> flatview_unref()
Hmm, this is not correct, as you could have
thread 1 thread 2 RCU thread
-------------------------------------------------------------
rcu_read_lock
read as->current_map
set as->current_map
flatview_unref
'--> call_rcu
flatview_ref
rcu_read_unlock
flatview_destroy
I need to think a bit more about this (and possibly ask Paul...).
Paolo
