rcu: Convert rcu_gpnum_ovf() to ->gp_seq

This commit converts rcu_gpnum_ovf() to use ->gp_seq instead of ->gpnum.
Same size unsigned long, so same approach.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2018-04-27 18:06:08 -07:00
commit a66ae8ae35