-
Manfred Spraul authored
As we want to remove spin_unlock_wait() and replace it with explicit spin_lock()/spin_unlock() calls, we can use this to simplify the locking. In addition: - Reading nf_conntrack_locks_all needs ACQUIRE memory ordering. - The new code avoids the backwards loop. Only slightly tested, I did not manage to trigger calls to nf_conntrack_all_lock(). V2: With improved comments, to clearly show how the barriers pair. Fixes: b16c2919 ("netfilter: nf_conntrack: use safer way to lock all buckets") Signed-off-by:
Manfred Spraul <manfred@colorfullife.com> Cc: <stable@vger.kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: netfilter-devel@vger.kernel.org Signed-off-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com>
3ef0c7a7