rcu: Cleanup, don't put ->completed into an int

It is true that currently only the low-order two bits are used, so
there should be no problem given modern machines and compilers, but
good hygiene and maintainability dictates use of an unsigned long
instead of an int.  This commit therefore makes this change.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Nicholas Piggin <npiggin@gmail.com>

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index fbacc486ed4c2a09b5147d08c3e3e7a0be67dd89..c7b1e6b2a3dae2d32b3b5946f2db28894bcb795b 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1765,7 +1765,7 @@ out:
  */
 static bool rcu_future_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
 {
-       int c = rnp->completed;
+       unsigned long c = rnp->completed;
        bool needmore;
        struct rcu_data *rdp = this_cpu_ptr(rsp->rda);