rcu/segcblist: Track segment grace periods with struct rcu_gp_seq

Change the type of the per-segment ->gp_seq[] array in struct
rcu_segcblist from unsigned long to struct rcu_gp_seq.  This prepares the
callback tracking infrastructure to record both normal and expedited
grace periods per segment.

The rcu_segcblist_nextgp(), rcu_segcblist_advance(), and
rcu_segcblist_accelerate() helpers now take a struct rcu_gp_seq * instead
of an unsigned long, and all callers use the .norm field for comparisons
and assignments.  The SRCU and Tasks RCU wrappers construct a struct
rcu_gp_seq with only .norm set and forward to the core helpers.

No functional change: only the .norm field is used.

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

0 files changed, 0 insertions, 0 deletions